experiment: built-in Ogg/Vorbis/FLAC/Opus in Furna

ce

extern/flac/src/CMakeLists.txt

@@ -0,0 +1,34 @@
+option(ENABLE_64_BIT_WORDS "Set FLAC__BYTES_PER_WORD to 8, for 64-bit machines. For 32-bit machines, turning this off might give a tiny speed improvement" ON)
+option(BUILD_UTILS "Build utils" OFF)
+
+add_subdirectory("libFLAC")
+if(BUILD_CXXLIBS)
+    add_subdirectory("libFLAC++")
+endif()
+add_subdirectory("share/replaygain_analysis")
+add_subdirectory("share/replaygain_synthesis")
+add_subdirectory("share/getopt")
+add_subdirectory("share/utf8")
+add_subdirectory("share/grabbag")
+
+if(BUILD_PROGRAMS)
+    add_subdirectory("flac")
+    add_subdirectory("metaflac")
+endif()
+if(BUILD_UTILS)
+    add_subdirectory(utils/flacdiff)
+    if(WIN32)
+        add_subdirectory(utils/flactimer)
+    endif()
+endif()
+
+if(BUILD_TESTING)
+    add_subdirectory("test_libs_common")
+    add_subdirectory("test_libFLAC")
+    if(BUILD_CXXLIBS)
+        add_subdirectory("test_libFLAC++")
+    endif()
+    add_subdirectory("test_grabbag")
+    add_subdirectory("test_seeking")
+    add_subdirectory("test_streams")
+endif()

extern/flac/src/Makefile.am

@@ -0,0 +1,40 @@
+#  FLAC - Free Lossless Audio Codec
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  This file is part the FLAC project.  FLAC is comprised of several
+#  components distributed under different licenses.  The codec libraries
+#  are distributed under Xiph.Org's BSD-like license (see the file
+#  COPYING.Xiph in this distribution).  All other programs, libraries, and
+#  plugins are distributed under the GPL (see COPYING.GPL).  The documentation
+#  is distributed under the Gnu FDL (see COPYING.FDL).  Each file in the
+#  FLAC distribution contains at the top the terms under which it may be
+#  distributed.
+#
+#  Since this particular file is relevant to all components of FLAC,
+#  it may be distributed under the Xiph.Org license, which is the least
+#  restrictive of those mentioned above.  See the file COPYING.Xiph in this
+#  distribution.
+
+if FLaC__WITH_CPPLIBS
+CPPLIBS_DIRS = libFLAC++ test_libFLAC++
+endif
+
+if FLaC__WITH_PROGRAMS
+PROGRAMS_DIRS = flac metaflac
+endif
+
+SUBDIRS = \
+	libFLAC \
+	share \
+	$(PROGRAMS_DIRS) \
+	test_grabbag \
+	test_libs_common \
+	test_libFLAC \
+	test_seeking \
+	test_streams \
+	utils \
+	$(CPPLIBS_DIRS)
+
+EXTRA_DIST = \
+	CMakeLists.txt

extern/flac/src/Makefile.in

@@ -0,0 +1,701 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  FLAC - Free Lossless Audio Codec
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  This file is part the FLAC project.  FLAC is comprised of several
+#  components distributed under different licenses.  The codec libraries
+#  are distributed under Xiph.Org's BSD-like license (see the file
+#  COPYING.Xiph in this distribution).  All other programs, libraries, and
+#  plugins are distributed under the GPL (see COPYING.GPL).  The documentation
+#  is distributed under the Gnu FDL (see COPYING.FDL).  Each file in the
+#  FLAC distribution contains at the top the terms under which it may be
+#  distributed.
+#
+#  Since this particular file is relevant to all components of FLAC,
+#  it may be distributed under the Xiph.Org license, which is the least
+#  restrictive of those mentioned above.  See the file COPYING.Xiph in this
+#  distribution.
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = src
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/add_cflags.m4 \
+	$(top_srcdir)/m4/add_cxxflags.m4 \
+	$(top_srcdir)/m4/ax_add_fortify_source.m4 \
+	$(top_srcdir)/m4/ax_check_compile_flag.m4 \
+	$(top_srcdir)/m4/ax_check_enable_debug.m4 \
+	$(top_srcdir)/m4/ax_pthread.m4 $(top_srcdir)/m4/bswap.m4 \
+	$(top_srcdir)/m4/clang.m4 $(top_srcdir)/m4/codeset.m4 \
+	$(top_srcdir)/m4/gcc_version.m4 $(top_srcdir)/m4/iconv.m4 \
+	$(top_srcdir)/m4/lib-ld.m4 $(top_srcdir)/m4/lib-link.m4 \
+	$(top_srcdir)/m4/lib-prefix.m4 $(top_srcdir)/m4/libtool.m4 \
+	$(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \
+	$(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \
+	$(top_srcdir)/m4/ogg.m4 $(top_srcdir)/m4/really_gcc.m4 \
+	$(top_srcdir)/m4/stack_protect.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+SOURCES =
+DIST_SOURCES =
+RECURSIVE_TARGETS = all-recursive check-recursive cscopelist-recursive \
+	ctags-recursive dvi-recursive html-recursive info-recursive \
+	install-data-recursive install-dvi-recursive \
+	install-exec-recursive install-html-recursive \
+	install-info-recursive install-pdf-recursive \
+	install-ps-recursive install-recursive installcheck-recursive \
+	installdirs-recursive pdf-recursive ps-recursive \
+	tags-recursive uninstall-recursive
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
+  distclean-recursive maintainer-clean-recursive
+am__recursive_targets = \
+  $(RECURSIVE_TARGETS) \
+  $(RECURSIVE_CLEAN_TARGETS) \
+  $(am__extra_recursive_targets)
+AM_RECURSIVE_TARGETS = $(am__recursive_targets:-recursive=) TAGS CTAGS \
+	distdir distdir-am
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+DIST_SUBDIRS = libFLAC share flac metaflac test_grabbag \
+	test_libs_common test_libFLAC test_seeking test_streams utils \
+	libFLAC++ test_libFLAC++
+am__DIST_COMMON = $(srcdir)/Makefile.in
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+am__relativize = \
+  dir0=`pwd`; \
+  sed_first='s,^\([^/]*\)/.*$$,\1,'; \
+  sed_rest='s,^[^/]*/*,,'; \
+  sed_last='s,^.*/\([^/]*\)$$,\1,'; \
+  sed_butlast='s,/*[^/]*$$,,'; \
+  while test -n "$$dir1"; do \
+    first=`echo "$$dir1" | sed -e "$$sed_first"`; \
+    if test "$$first" != "."; then \
+      if test "$$first" = ".."; then \
+        dir2=`echo "$$dir0" | sed -e "$$sed_last"`/"$$dir2"; \
+        dir0=`echo "$$dir0" | sed -e "$$sed_butlast"`; \
+      else \
+        first2=`echo "$$dir2" | sed -e "$$sed_first"`; \
+        if test "$$first2" = "$$first"; then \
+          dir2=`echo "$$dir2" | sed -e "$$sed_rest"`; \
+        else \
+          dir2="../$$dir2"; \
+        fi; \
+        dir0="$$dir0"/"$$first"; \
+      fi; \
+    fi; \
+    dir1=`echo "$$dir1" | sed -e "$$sed_rest"`; \
+  done; \
+  reldir="$$dir2"
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+AR = @AR@
+AS = @AS@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CSCOPE = @CSCOPE@
+CTAGS = @CTAGS@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+ENABLE_64_BIT_WORDS = @ENABLE_64_BIT_WORDS@
+ETAGS = @ETAGS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+FILECMD = @FILECMD@
+FLAC_STATIC_LIBS = @FLAC_STATIC_LIBS@
+FLAC__HAS_OGG = @FLAC__HAS_OGG@
+FLAC__TEST_LEVEL = @FLAC__TEST_LEVEL@
+FLAC__TEST_WITH_VALGRIND = @FLAC__TEST_WITH_VALGRIND@
+GCC_MAJOR_VERSION = @GCC_MAJOR_VERSION@
+GCC_MINOR_VERSION = @GCC_MINOR_VERSION@
+GCC_VERSION = @GCC_VERSION@
+GIT_COMMIT_VERSION_HASH = @GIT_COMMIT_VERSION_HASH@
+GIT_FOUND = @GIT_FOUND@
+GREP = @GREP@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBICONV = @LIBICONV@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@
+LIB_FUZZING_ENGINE = @LIB_FUZZING_ENGINE@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBICONV = @LTLIBICONV@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OBJ_FORMAT = @OBJ_FORMAT@
+OGG_CFLAGS = @OGG_CFLAGS@
+OGG_LIBS = @OGG_LIBS@
+OGG_PACKAGE = @OGG_PACKAGE@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PANDOC = @PANDOC@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_CXX = @PTHREAD_CXX@
+PTHREAD_LIBS = @PTHREAD_LIBS@
+RANLIB = @RANLIB@
+RC = @RC@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+ax_pthread_config = @ax_pthread_config@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+runstatedir = @runstatedir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+@FLaC__WITH_CPPLIBS_TRUE@CPPLIBS_DIRS = libFLAC++ test_libFLAC++
+@FLaC__WITH_PROGRAMS_TRUE@PROGRAMS_DIRS = flac metaflac
+SUBDIRS = \
+	libFLAC \
+	share \
+	$(PROGRAMS_DIRS) \
+	test_grabbag \
+	test_libs_common \
+	test_libFLAC \
+	test_seeking \
+	test_streams \
+	utils \
+	$(CPPLIBS_DIRS)
+
+EXTRA_DIST = \
+	CMakeLists.txt
+
+all: all-recursive
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign src/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run 'make' without going through this Makefile.
+# To change the values of 'make' variables: instead of editing Makefiles,
+# (1) if the variable is set in 'config.status', edit 'config.status'
+#     (which will cause the Makefiles to be regenerated when you run 'make');
+# (2) otherwise, pass the desired values on the 'make' command line.
+$(am__recursive_targets):
+	@fail=; \
+	if $(am__make_keepgoing); then \
+	  failcom='fail=yes'; \
+	else \
+	  failcom='exit 1'; \
+	fi; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-recursive
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      set "$$@" "$$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-recursive
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-recursive
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    $(am__make_dryrun) \
+	      || test -d "$(distdir)/$$subdir" \
+	      || $(MKDIR_P) "$(distdir)/$$subdir" \
+	      || exit 1; \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-recursive
+all-am: Makefile
+installdirs: installdirs-recursive
+installdirs-am:
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+html-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-recursive
+
+install-html-am:
+
+install-info: install-info-recursive
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-recursive
+
+install-pdf-am:
+
+install-ps: install-ps-recursive
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: $(am__recursive_targets) install-am install-strip
+
+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am check \
+	check-am clean clean-generic clean-libtool cscopelist-am ctags \
+	ctags-am distclean distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
+	ps ps-am tags tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

extern/flac/src/flac/CMakeLists.txt

@@ -0,0 +1,26 @@
+check_include_file("sys/ioctl.h" HAVE_SYS_IOCTL_H)
+check_include_file("sys/time.h" HAVE_SYS_TIME_H)
+check_include_file("termios.h" HAVE_TERMIOS_H)
+
+add_executable(flacapp
+    analyze.c
+    decode.c
+    encode.c
+    foreign_metadata.c
+    main.c
+    local_string_utils.c
+    utils.c
+    vorbiscomment.c
+    version.rc
+    $<$<BOOL:${WIN32}>:../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../share/win_utf8_io/win_utf8_io.c>)
+set_property(TARGET flacapp PROPERTY RUNTIME_OUTPUT_NAME flac)
+set_property(TARGET flacapp PROPERTY PROJECT_LABEL "flac")
+target_link_libraries(flacapp
+    FLAC
+    getopt
+    replaygain_synthesis
+    utf8)
+
+install(TARGETS flacapp EXPORT targets
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}")

extern/flac/src/flac/Makefile.am

@@ -0,0 +1,69 @@
+#  flac - Command-line FLAC encoder/decoder
+#  Copyright (C) 2000-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+if OS_IS_WINDOWS
+win_utf8_lib = $(top_builddir)/src/share/win_utf8_io/libwin_utf8_io.la
+if HAVE_WINDRES
+flac_DEPENDENCIES = version.o
+windows_resource_link = -Wl,version.o
+endif
+endif
+
+bin_PROGRAMS = flac
+
+AM_CFLAGS = @OGG_CFLAGS@
+AM_CPPFLAGS = -I$(top_builddir) -I$(srcdir)/include -I$(top_srcdir)/include
+EXTRA_DIST = \
+	CMakeLists.txt \
+	iffscan.c \
+	version.rc
+
+flac_SOURCES = \
+	analyze.c \
+	decode.c \
+	encode.c \
+	foreign_metadata.c \
+	main.c \
+	local_string_utils.c \
+	utils.c \
+	vorbiscomment.c \
+	analyze.h \
+	decode.h \
+	encode.h \
+	foreign_metadata.h \
+	local_string_utils.h \
+	utils.h \
+	vorbiscomment.h
+
+flac_LDADD = \
+	$(top_builddir)/src/share/utf8/libutf8.la \
+	$(top_builddir)/src/share/grabbag/libgrabbag.la \
+	$(top_builddir)/src/share/getopt/libgetopt.la \
+	$(top_builddir)/src/share/replaygain_analysis/libreplaygain_analysis.la \
+	$(top_builddir)/src/share/replaygain_synthesis/libreplaygain_synthesis.la \
+	$(top_builddir)/src/libFLAC/libFLAC.la \
+	$(win_utf8_lib) \
+	@LTLIBICONV@ \
+	-lm
+
+flac_LDFLAGS = $(AM_LDFLAGS) $(windows_resource_link)
+
+CLEANFILES = flac.exe
+
+.rc.o:
+	$(RC) $(AM_CPPFLAGS) $< $@

extern/flac/src/flac/Makefile.in

@@ -0,0 +1,789 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  flac - Command-line FLAC encoder/decoder
+#  Copyright (C) 2000-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  This program is free software; you can redistribute it and/or
+#  modify it under the terms of the GNU General Public License
+#  as published by the Free Software Foundation; either version 2
+#  of the License, or (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License along
+#  with this program; if not, write to the Free Software Foundation, Inc.,
+#  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+@HAVE_WINDRES_FALSE@flac_DEPENDENCIES =  \
+@HAVE_WINDRES_FALSE@	$(top_builddir)/src/share/utf8/libutf8.la \
+@HAVE_WINDRES_FALSE@	$(top_builddir)/src/share/grabbag/libgrabbag.la \
+@HAVE_WINDRES_FALSE@	$(top_builddir)/src/share/getopt/libgetopt.la \
+@HAVE_WINDRES_FALSE@	$(top_builddir)/src/share/replaygain_analysis/libreplaygain_analysis.la \
+@HAVE_WINDRES_FALSE@	$(top_builddir)/src/share/replaygain_synthesis/libreplaygain_synthesis.la \
+@HAVE_WINDRES_FALSE@	$(top_builddir)/src/libFLAC/libFLAC.la \
+@HAVE_WINDRES_FALSE@	$(win_utf8_lib)
+@OS_IS_WINDOWS_FALSE@flac_DEPENDENCIES = $(top_builddir)/src/share/utf8/libutf8.la \
+@OS_IS_WINDOWS_FALSE@	$(top_builddir)/src/share/grabbag/libgrabbag.la \
+@OS_IS_WINDOWS_FALSE@	$(top_builddir)/src/share/getopt/libgetopt.la \
+@OS_IS_WINDOWS_FALSE@	$(top_builddir)/src/share/replaygain_analysis/libreplaygain_analysis.la \
+@OS_IS_WINDOWS_FALSE@	$(top_builddir)/src/share/replaygain_synthesis/libreplaygain_synthesis.la \
+@OS_IS_WINDOWS_FALSE@	$(top_builddir)/src/libFLAC/libFLAC.la \
+@OS_IS_WINDOWS_FALSE@	$(win_utf8_lib)
+bin_PROGRAMS = flac$(EXEEXT)
+subdir = src/flac
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/add_cflags.m4 \
+	$(top_srcdir)/m4/add_cxxflags.m4 \
+	$(top_srcdir)/m4/ax_add_fortify_source.m4 \
+	$(top_srcdir)/m4/ax_check_compile_flag.m4 \
+	$(top_srcdir)/m4/ax_check_enable_debug.m4 \
+	$(top_srcdir)/m4/ax_pthread.m4 $(top_srcdir)/m4/bswap.m4 \
+	$(top_srcdir)/m4/clang.m4 $(top_srcdir)/m4/codeset.m4 \
+	$(top_srcdir)/m4/gcc_version.m4 $(top_srcdir)/m4/iconv.m4 \
+	$(top_srcdir)/m4/lib-ld.m4 $(top_srcdir)/m4/lib-link.m4 \
+	$(top_srcdir)/m4/lib-prefix.m4 $(top_srcdir)/m4/libtool.m4 \
+	$(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \
+	$(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \
+	$(top_srcdir)/m4/ogg.m4 $(top_srcdir)/m4/really_gcc.m4 \
+	$(top_srcdir)/m4/stack_protect.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+am__installdirs = "$(DESTDIR)$(bindir)"
+PROGRAMS = $(bin_PROGRAMS)
+am_flac_OBJECTS = analyze.$(OBJEXT) decode.$(OBJEXT) encode.$(OBJEXT) \
+	foreign_metadata.$(OBJEXT) main.$(OBJEXT) \
+	local_string_utils.$(OBJEXT) utils.$(OBJEXT) \
+	vorbiscomment.$(OBJEXT)
+flac_OBJECTS = $(am_flac_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+flac_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(flac_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__maybe_remake_depfiles = depfiles
+am__depfiles_remade = ./$(DEPDIR)/analyze.Po ./$(DEPDIR)/decode.Po \
+	./$(DEPDIR)/encode.Po ./$(DEPDIR)/foreign_metadata.Po \
+	./$(DEPDIR)/local_string_utils.Po ./$(DEPDIR)/main.Po \
+	./$(DEPDIR)/utils.Po ./$(DEPDIR)/vorbiscomment.Po
+am__mv = mv -f
+COMPILE = $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) \
+	$(CPPFLAGS) $(AM_CFLAGS) $(CFLAGS)
+LTCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CFLAGS) $(CFLAGS)
+AM_V_CC = $(am__v_CC_@AM_V@)
+am__v_CC_ = $(am__v_CC_@AM_DEFAULT_V@)
+am__v_CC_0 = @echo "  CC      " $@;
+am__v_CC_1 = 
+CCLD = $(CC)
+LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CCLD) $(AM_CFLAGS) $(CFLAGS) \
+	$(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CCLD = $(am__v_CCLD_@AM_V@)
+am__v_CCLD_ = $(am__v_CCLD_@AM_DEFAULT_V@)
+am__v_CCLD_0 = @echo "  CCLD    " $@;
+am__v_CCLD_1 = 
+SOURCES = $(flac_SOURCES)
+DIST_SOURCES = $(flac_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+am__DIST_COMMON = $(srcdir)/Makefile.in $(top_srcdir)/depcomp
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+AR = @AR@
+AS = @AS@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CSCOPE = @CSCOPE@
+CTAGS = @CTAGS@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+ENABLE_64_BIT_WORDS = @ENABLE_64_BIT_WORDS@
+ETAGS = @ETAGS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+FILECMD = @FILECMD@
+FLAC_STATIC_LIBS = @FLAC_STATIC_LIBS@
+FLAC__HAS_OGG = @FLAC__HAS_OGG@
+FLAC__TEST_LEVEL = @FLAC__TEST_LEVEL@
+FLAC__TEST_WITH_VALGRIND = @FLAC__TEST_WITH_VALGRIND@
+GCC_MAJOR_VERSION = @GCC_MAJOR_VERSION@
+GCC_MINOR_VERSION = @GCC_MINOR_VERSION@
+GCC_VERSION = @GCC_VERSION@
+GIT_COMMIT_VERSION_HASH = @GIT_COMMIT_VERSION_HASH@
+GIT_FOUND = @GIT_FOUND@
+GREP = @GREP@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBICONV = @LIBICONV@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@
+LIB_FUZZING_ENGINE = @LIB_FUZZING_ENGINE@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBICONV = @LTLIBICONV@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OBJ_FORMAT = @OBJ_FORMAT@
+OGG_CFLAGS = @OGG_CFLAGS@
+OGG_LIBS = @OGG_LIBS@
+OGG_PACKAGE = @OGG_PACKAGE@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PANDOC = @PANDOC@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_CXX = @PTHREAD_CXX@
+PTHREAD_LIBS = @PTHREAD_LIBS@
+RANLIB = @RANLIB@
+RC = @RC@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+ax_pthread_config = @ax_pthread_config@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+runstatedir = @runstatedir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+@OS_IS_WINDOWS_TRUE@win_utf8_lib = $(top_builddir)/src/share/win_utf8_io/libwin_utf8_io.la
+@HAVE_WINDRES_TRUE@@OS_IS_WINDOWS_TRUE@flac_DEPENDENCIES = version.o
+@HAVE_WINDRES_TRUE@@OS_IS_WINDOWS_TRUE@windows_resource_link = -Wl,version.o
+AM_CFLAGS = @OGG_CFLAGS@
+AM_CPPFLAGS = -I$(top_builddir) -I$(srcdir)/include -I$(top_srcdir)/include
+EXTRA_DIST = \
+	CMakeLists.txt \
+	iffscan.c \
+	version.rc
+
+flac_SOURCES = \
+	analyze.c \
+	decode.c \
+	encode.c \
+	foreign_metadata.c \
+	main.c \
+	local_string_utils.c \
+	utils.c \
+	vorbiscomment.c \
+	analyze.h \
+	decode.h \
+	encode.h \
+	foreign_metadata.h \
+	local_string_utils.h \
+	utils.h \
+	vorbiscomment.h
+
+flac_LDADD = \
+	$(top_builddir)/src/share/utf8/libutf8.la \
+	$(top_builddir)/src/share/grabbag/libgrabbag.la \
+	$(top_builddir)/src/share/getopt/libgetopt.la \
+	$(top_builddir)/src/share/replaygain_analysis/libreplaygain_analysis.la \
+	$(top_builddir)/src/share/replaygain_synthesis/libreplaygain_synthesis.la \
+	$(top_builddir)/src/libFLAC/libFLAC.la \
+	$(win_utf8_lib) \
+	@LTLIBICONV@ \
+	-lm
+
+flac_LDFLAGS = $(AM_LDFLAGS) $(windows_resource_link)
+CLEANFILES = flac.exe
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .o .obj .rc
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/flac/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign src/flac/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+install-binPROGRAMS: $(bin_PROGRAMS)
+	@$(NORMAL_INSTALL)
+	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(bindir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(bindir)" || exit 1; \
+	fi; \
+	for p in $$list; do echo "$$p $$p"; done | \
+	sed 's/$(EXEEXT)$$//' | \
+	while read p p1; do if test -f $$p \
+	 || test -f $$p1 \
+	  ; then echo "$$p"; echo "$$p"; else :; fi; \
+	done | \
+	sed -e 'p;s,.*/,,;n;h' \
+	    -e 's|.*|.|' \
+	    -e 'p;x;s,.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
+	sed 'N;N;N;s,\n, ,g' | \
+	$(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
+	  { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+	    if ($$2 == $$4) files[d] = files[d] " " $$1; \
+	    else { print "f", $$3 "/" $$4, $$1; } } \
+	  END { for (d in files) print "f", d, files[d] }' | \
+	while read type dir files; do \
+	    if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+	    test -z "$$files" || { \
+	    echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files '$(DESTDIR)$(bindir)$$dir'"; \
+	    $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files "$(DESTDIR)$(bindir)$$dir" || exit $$?; \
+	    } \
+	; done
+
+uninstall-binPROGRAMS:
+	@$(NORMAL_UNINSTALL)
+	@list='$(bin_PROGRAMS)'; test -n "$(bindir)" || list=; \
+	files=`for p in $$list; do echo "$$p"; done | \
+	  sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
+	      -e 's/$$/$(EXEEXT)/' \
+	`; \
+	test -n "$$list" || exit 0; \
+	echo " ( cd '$(DESTDIR)$(bindir)' && rm -f" $$files ")"; \
+	cd "$(DESTDIR)$(bindir)" && rm -f $$files
+
+clean-binPROGRAMS:
+	@list='$(bin_PROGRAMS)'; test -n "$$list" || exit 0; \
+	echo " rm -f" $$list; \
+	rm -f $$list || exit $$?; \
+	test -n "$(EXEEXT)" || exit 0; \
+	list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+	echo " rm -f" $$list; \
+	rm -f $$list
+
+flac$(EXEEXT): $(flac_OBJECTS) $(flac_DEPENDENCIES) $(EXTRA_flac_DEPENDENCIES) 
+	@rm -f flac$(EXEEXT)
+	$(AM_V_CCLD)$(flac_LINK) $(flac_OBJECTS) $(flac_LDADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/analyze.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/decode.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/encode.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/foreign_metadata.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/local_string_utils.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/main.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/utils.Po@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/vorbiscomment.Po@am__quote@ # am--include-marker
+
+$(am__depfiles_remade):
+	@$(MKDIR_P) $(@D)
+	@echo '# dummy' >$@-t && $(am__mv) $@-t $@
+
+am--depfiles: $(am__depfiles_remade)
+
+.c.o:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ $<
+
+.c.obj:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCC_TRUE@	$(COMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(COMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.c.lo:
+@am__fastdepCC_TRUE@	$(AM_V_CC)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCC_TRUE@	$(LTCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCC_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	$(AM_V_CC)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCC_FALSE@	DEPDIR=$(DEPDIR) $(CCDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCC_FALSE@	$(AM_V_CC@am__nodep@)$(LTCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(PROGRAMS)
+installdirs:
+	for dir in "$(DESTDIR)$(bindir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+	-test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-binPROGRAMS clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/analyze.Po
+	-rm -f ./$(DEPDIR)/decode.Po
+	-rm -f ./$(DEPDIR)/encode.Po
+	-rm -f ./$(DEPDIR)/foreign_metadata.Po
+	-rm -f ./$(DEPDIR)/local_string_utils.Po
+	-rm -f ./$(DEPDIR)/main.Po
+	-rm -f ./$(DEPDIR)/utils.Po
+	-rm -f ./$(DEPDIR)/vorbiscomment.Po
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-binPROGRAMS
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/analyze.Po
+	-rm -f ./$(DEPDIR)/decode.Po
+	-rm -f ./$(DEPDIR)/encode.Po
+	-rm -f ./$(DEPDIR)/foreign_metadata.Po
+	-rm -f ./$(DEPDIR)/local_string_utils.Po
+	-rm -f ./$(DEPDIR)/main.Po
+	-rm -f ./$(DEPDIR)/utils.Po
+	-rm -f ./$(DEPDIR)/vorbiscomment.Po
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-binPROGRAMS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+	clean-binPROGRAMS clean-generic clean-libtool cscopelist-am \
+	ctags ctags-am distclean distclean-compile distclean-generic \
+	distclean-libtool distclean-tags distdir dvi dvi-am html \
+	html-am info info-am install install-am install-binPROGRAMS \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-compile \
+	mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+	tags tags-am uninstall uninstall-am uninstall-binPROGRAMS
+
+.PRECIOUS: Makefile
+
+
+.rc.o:
+	$(RC) $(AM_CPPFLAGS) $< $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

extern/flac/src/flac/analyze.c

@@ -0,0 +1,255 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <errno.h>
+#include <math.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include "FLAC/all.h"
+#include "analyze.h"
+
+#include "share/compat.h"
+
+typedef struct {
+	FLAC__int32 residual;
+	uint32_t count;
+} pair_t;
+
+typedef struct {
+	pair_t buckets[FLAC__MAX_BLOCK_SIZE];
+	int peak_index;
+	uint32_t nbuckets;
+	uint32_t nsamples;
+	double sum, sos;
+	double variance;
+	double mean;
+	double stddev;
+} subframe_stats_t;
+
+static subframe_stats_t all_;
+
+static void init_stats(subframe_stats_t *stats);
+static void update_stats(subframe_stats_t *stats, FLAC__int32 residual, uint32_t incr);
+static void compute_stats(subframe_stats_t *stats);
+static FLAC__bool dump_stats(const subframe_stats_t *stats, const char *filename);
+
+void flac__analyze_init(analysis_options aopts)
+{
+	if(aopts.do_residual_gnuplot) {
+		init_stats(&all_);
+	}
+}
+
+void flac__analyze_frame(const FLAC__Frame *frame, uint32_t frame_number, FLAC__bool decode_position_valid, FLAC__uint64 frame_offset, FLAC__uint64 frame_bytes, analysis_options aopts, FILE *fout)
+{
+	const uint32_t channels = frame->header.channels;
+	char outfilename[1024];
+	subframe_stats_t stats;
+	uint32_t i, channel, partitions;
+
+	/* do the human-readable part first */
+	if(decode_position_valid)
+		fprintf(fout, "frame=%u\toffset=%" PRIu64 "\tbits=%" PRIu64 "\tblocksize=%u\tsample_rate=%u\tchannels=%u\tchannel_assignment=%s\n", frame_number, frame_offset, frame_bytes*8, frame->header.blocksize, frame->header.sample_rate, channels, FLAC__ChannelAssignmentString[frame->header.channel_assignment]);
+	else
+		fprintf(fout, "frame=%u\toffset=?\tbits=?\tblocksize=%u\tsample_rate=%u\tchannels=%u\tchannel_assignment=%s\n", frame_number, frame->header.blocksize, frame->header.sample_rate, channels, FLAC__ChannelAssignmentString[frame->header.channel_assignment]);
+	for(channel = 0; channel < channels; channel++) {
+		const FLAC__Subframe *subframe = frame->subframes+channel;
+		const FLAC__bool is_rice2 = subframe->data.fixed.entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2;
+		const uint32_t pesc = is_rice2? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
+		fprintf(fout, "\tsubframe=%u\twasted_bits=%u\ttype=%s", channel, subframe->wasted_bits, FLAC__SubframeTypeString[subframe->type]);
+		switch(subframe->type) {
+			case FLAC__SUBFRAME_TYPE_CONSTANT:
+				fprintf(fout, "\tvalue=%" PRId64 "\n", subframe->data.constant.value);
+				break;
+			case FLAC__SUBFRAME_TYPE_FIXED:
+				FLAC__ASSERT(subframe->data.fixed.entropy_coding_method.type <= FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2);
+				fprintf(fout, "\torder=%u\tresidual_type=%s\tpartition_order=%u\n", subframe->data.fixed.order, is_rice2? "RICE2":"RICE", subframe->data.fixed.entropy_coding_method.data.partitioned_rice.order);
+				for(i = 0; i < subframe->data.fixed.order; i++)
+					fprintf(fout, "\t\twarmup[%u]=%" PRId64 "\n", i, subframe->data.fixed.warmup[i]);
+				partitions = (1u << subframe->data.fixed.entropy_coding_method.data.partitioned_rice.order);
+				for(i = 0; i < partitions; i++) {
+					uint32_t parameter = subframe->data.fixed.entropy_coding_method.data.partitioned_rice.contents->parameters[i];
+					if(parameter == pesc)
+						fprintf(fout, "\t\tparameter[%u]=ESCAPE, raw_bits=%u\n", i, subframe->data.fixed.entropy_coding_method.data.partitioned_rice.contents->raw_bits[i]);
+					else
+						fprintf(fout, "\t\tparameter[%u]=%u\n", i, parameter);
+				}
+				if(aopts.do_residual_text) {
+					for(i = 0; i < frame->header.blocksize-subframe->data.fixed.order; i++)
+						fprintf(fout, "\t\tresidual[%u]=%d\n", i, subframe->data.fixed.residual[i]);
+				}
+				break;
+			case FLAC__SUBFRAME_TYPE_LPC:
+				FLAC__ASSERT(subframe->data.lpc.entropy_coding_method.type <= FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2);
+				fprintf(fout, "\torder=%u\tqlp_coeff_precision=%u\tquantization_level=%d\tresidual_type=%s\tpartition_order=%u\n", subframe->data.lpc.order, subframe->data.lpc.qlp_coeff_precision, subframe->data.lpc.quantization_level, is_rice2? "RICE2":"RICE", subframe->data.lpc.entropy_coding_method.data.partitioned_rice.order);
+				for(i = 0; i < subframe->data.lpc.order; i++)
+					fprintf(fout, "\t\tqlp_coeff[%u]=%d\n", i, subframe->data.lpc.qlp_coeff[i]);
+				for(i = 0; i < subframe->data.lpc.order; i++)
+					fprintf(fout, "\t\twarmup[%u]=%" PRId64 "\n", i, subframe->data.lpc.warmup[i]);
+				partitions = (1u << subframe->data.lpc.entropy_coding_method.data.partitioned_rice.order);
+				for(i = 0; i < partitions; i++) {
+					uint32_t parameter = subframe->data.lpc.entropy_coding_method.data.partitioned_rice.contents->parameters[i];
+					if(parameter == pesc)
+						fprintf(fout, "\t\tparameter[%u]=ESCAPE, raw_bits=%u\n", i, subframe->data.lpc.entropy_coding_method.data.partitioned_rice.contents->raw_bits[i]);
+					else
+						fprintf(fout, "\t\tparameter[%u]=%u\n", i, parameter);
+				}
+				if(aopts.do_residual_text) {
+					for(i = 0; i < frame->header.blocksize-subframe->data.lpc.order; i++)
+						fprintf(fout, "\t\tresidual[%u]=%d\n", i, subframe->data.lpc.residual[i]);
+				}
+				break;
+			case FLAC__SUBFRAME_TYPE_VERBATIM:
+				fprintf(fout, "\n");
+				break;
+		}
+	}
+
+	/* now do the residual distributions if requested */
+	if(aopts.do_residual_gnuplot) {
+		for(channel = 0; channel < channels; channel++) {
+			const FLAC__Subframe *subframe = frame->subframes+channel;
+			uint32_t residual_samples;
+
+			init_stats(&stats);
+
+			switch(subframe->type) {
+				case FLAC__SUBFRAME_TYPE_FIXED:
+					residual_samples = frame->header.blocksize - subframe->data.fixed.order;
+					for(i = 0; i < residual_samples; i++)
+						update_stats(&stats, subframe->data.fixed.residual[i], 1);
+					break;
+				case FLAC__SUBFRAME_TYPE_LPC:
+					residual_samples = frame->header.blocksize - subframe->data.lpc.order;
+					for(i = 0; i < residual_samples; i++)
+						update_stats(&stats, subframe->data.lpc.residual[i], 1);
+					break;
+				default:
+					break;
+			}
+
+			/* update all_ */
+			for(i = 0; i < stats.nbuckets; i++) {
+				update_stats(&all_, stats.buckets[i].residual, stats.buckets[i].count);
+			}
+
+			if(stats.nsamples > 0) {
+				/* write the subframe */
+				flac_snprintf(outfilename, sizeof (outfilename), "f%06u.s%u.gp", frame_number, channel);
+				compute_stats(&stats);
+
+				(void)dump_stats(&stats, outfilename);
+			}
+		}
+	}
+}
+
+void flac__analyze_finish(analysis_options aopts)
+{
+	if(aopts.do_residual_gnuplot && all_.nsamples > 0) {
+		compute_stats(&all_);
+		(void)dump_stats(&all_, "all");
+	}
+}
+
+void init_stats(subframe_stats_t *stats)
+{
+	stats->peak_index = -1;
+	stats->nbuckets = 0;
+	stats->nsamples = 0;
+	stats->sum = 0.0;
+	stats->sos = 0.0;
+}
+
+void update_stats(subframe_stats_t *stats, FLAC__int32 residual, uint32_t incr)
+{
+	uint32_t i;
+	const double r = (double)residual, a = r*incr;
+
+	stats->nsamples += incr;
+	stats->sum += a;
+	stats->sos += (a*r);
+
+	for(i = 0; i < stats->nbuckets; i++) {
+		if(stats->buckets[i].residual == residual) {
+			stats->buckets[i].count += incr;
+			goto find_peak;
+		}
+	}
+	/* not found, make a new bucket */
+	i = stats->nbuckets;
+	stats->buckets[i].residual = residual;
+	stats->buckets[i].count = incr;
+	stats->nbuckets++;
+find_peak:
+	if(stats->peak_index < 0 || stats->buckets[i].count > stats->buckets[stats->peak_index].count)
+		stats->peak_index = i;
+}
+
+void compute_stats(subframe_stats_t *stats)
+{
+	stats->mean = stats->sum / (double)stats->nsamples;
+	stats->variance = (stats->sos - (stats->sum * stats->sum / stats->nsamples)) / stats->nsamples;
+	stats->stddev = sqrt(stats->variance);
+}
+
+FLAC__bool dump_stats(const subframe_stats_t *stats, const char *filename)
+{
+	FILE *outfile;
+	uint32_t i;
+	const double m = stats->mean;
+	const double s1 = stats->stddev, s2 = s1*2, s3 = s1*3, s4 = s1*4, s5 = s1*5, s6 = s1*6;
+	const double p = stats->buckets[stats->peak_index].count;
+
+	outfile = flac_fopen(filename, "w");
+
+	if(0 == outfile) {
+		flac_fprintf(stderr, "ERROR opening %s: %s\n", filename, strerror(errno));
+		return false;
+	}
+
+	fprintf(outfile, "plot '-' title 'PDF', '-' title 'mean' with impulses, '-' title '1-stddev' with histeps, '-' title '2-stddev' with histeps, '-' title '3-stddev' with histeps, '-' title '4-stddev' with histeps, '-' title '5-stddev' with histeps, '-' title '6-stddev' with histeps\n");
+
+	for(i = 0; i < stats->nbuckets; i++) {
+		fprintf(outfile, "%d %u\n", stats->buckets[i].residual, stats->buckets[i].count);
+	}
+	fprintf(outfile, "e\n");
+
+	fprintf(outfile, "%f %f\ne\n", stats->mean, p);
+	fprintf(outfile, "%f %f\n%f %f\ne\n", m-s1, p*0.8, m+s1, p*0.8);
+	fprintf(outfile, "%f %f\n%f %f\ne\n", m-s2, p*0.7, m+s2, p*0.7);
+	fprintf(outfile, "%f %f\n%f %f\ne\n", m-s3, p*0.6, m+s3, p*0.6);
+	fprintf(outfile, "%f %f\n%f %f\ne\n", m-s4, p*0.5, m+s4, p*0.5);
+	fprintf(outfile, "%f %f\n%f %f\ne\n", m-s5, p*0.4, m+s5, p*0.4);
+	fprintf(outfile, "%f %f\n%f %f\ne\n", m-s6, p*0.3, m+s6, p*0.3);
+
+	fprintf(outfile, "pause -1 'waiting...'\n");
+
+	fclose(outfile);
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+	unlink(filename);
+#endif
+	return true;
+}

extern/flac/src/flac/analyze.h

@@ -0,0 +1,32 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef flac__analyze_h
+#define flac__analyze_h
+
+typedef struct {
+	FLAC__bool do_residual_text;
+	FLAC__bool do_residual_gnuplot;
+} analysis_options;
+
+void flac__analyze_init(analysis_options aopts);
+void flac__analyze_frame(const FLAC__Frame *frame, uint32_t frame_number, FLAC__bool decode_position_valid, FLAC__uint64 frame_offset, FLAC__uint64 frame_bytes, analysis_options aopts, FILE *fout);
+void flac__analyze_finish(analysis_options aopts);
+
+#endif

extern/flac/src/flac/decode.h

@@ -0,0 +1,74 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef flac__decode_h
+#define flac__decode_h
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "analyze.h"
+#include "foreign_metadata.h"
+#include "utils.h"
+#include "share/replaygain_synthesis.h"
+
+
+typedef struct {
+	FLAC__bool apply;
+	FLAC__bool use_album_gain; /* false => use track gain */
+	enum { RGSS_LIMIT__NONE, RGSS_LIMIT__PEAK, RGSS_LIMIT__HARD} limiter;
+	NoiseShaping noise_shaping;
+	double preamp;
+} replaygain_synthesis_spec_t;
+
+typedef struct {
+	FLAC__bool treat_warnings_as_errors;
+	FLAC__bool continue_through_decode_errors;
+	replaygain_synthesis_spec_t replaygain_synthesis_spec;
+#if FLAC__HAS_OGG
+	FLAC__bool is_ogg;
+	FLAC__bool use_first_serial_number;
+	long serial_number;
+	FLAC__bool decode_chained_stream;
+#endif
+	utils__SkipUntilSpecification skip_specification;
+	utils__SkipUntilSpecification until_specification;
+	FLAC__bool has_cue_specification;
+	utils__CueSpecification cue_specification;
+	FLAC__bool channel_map_none; /* --channel-map=none specified, eventually will expand to take actual channel map */
+	FLAC__bool relaxed_foreign_metadata_handling;
+	FileSubFormat force_subformat;
+
+	FileFormat format;
+	union {
+		struct {
+			FLAC__bool is_big_endian;
+			FLAC__bool is_unsigned_samples;
+		} raw;
+		struct {
+			foreign_metadata_t *foreign_metadata; /* NULL unless --keep-foreign-metadata requested */
+		} iff;
+	} format_options;
+} decode_options_t;
+
+/* outfile == 0 => test only */
+int flac__decode_file(const char *infilename, const char *outfilename, FLAC__bool analysis_mode, analysis_options aopts, decode_options_t options);
+
+#endif

extern/flac/src/flac/encode.h

@@ -0,0 +1,117 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef flac__encode_h
+#define flac__encode_h
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "FLAC/metadata.h"
+#include "foreign_metadata.h"
+#include "utils.h"
+#include "share/compat.h"
+
+extern const int FLAC_ENCODE__DEFAULT_PADDING;
+
+typedef enum {
+	CST_BLOCKSIZE,
+	CST_COMPRESSION_LEVEL,
+	CST_DO_MID_SIDE,
+	CST_LOOSE_MID_SIDE,
+	CST_APODIZATION,
+	CST_MAX_LPC_ORDER,
+	CST_QLP_COEFF_PRECISION,
+	CST_DO_QLP_COEFF_PREC_SEARCH,
+	CST_DO_ESCAPE_CODING,
+	CST_DO_EXHAUSTIVE_MODEL_SEARCH,
+	CST_MIN_RESIDUAL_PARTITION_ORDER,
+	CST_MAX_RESIDUAL_PARTITION_ORDER,
+	CST_RICE_PARAMETER_SEARCH_DIST
+} compression_setting_type_t;
+
+typedef struct {
+	compression_setting_type_t type;
+	union {
+		FLAC__bool t_bool;
+		unsigned t_unsigned;
+		const char *t_string;
+	} value;
+} compression_setting_t;
+
+typedef struct {
+	utils__SkipUntilSpecification skip_specification;
+	utils__SkipUntilSpecification until_specification;
+	FLAC__bool verify;
+#if FLAC__HAS_OGG
+	FLAC__bool use_ogg;
+	long serial_number;
+#endif
+	FLAC__bool lax;
+	int padding;
+	size_t num_compression_settings;
+	compression_setting_t compression_settings[64];
+	uint32_t threads;
+	char *requested_seek_points;
+	int num_requested_seek_points;
+	const char *cuesheet_filename;
+	FLAC__bool treat_warnings_as_errors;
+	FLAC__bool continue_through_decode_errors; /* currently only obeyed when encoding from FLAC or Ogg FLAC */
+	FLAC__bool cued_seekpoints;
+	FLAC__bool channel_map_none; /* --channel-map=none specified, eventually will expand to take actual channel map */
+
+	FLAC__bool is_first_file;
+	FLAC__bool is_last_file;
+	FLAC__bool replay_gain;
+	FLAC__bool ignore_chunk_sizes;
+	FLAC__bool error_on_compression_fail;
+	FLAC__bool limit_min_bitrate;
+	FLAC__bool relaxed_foreign_metadata_handling;
+
+	FLAC__StreamMetadata *vorbis_comment;
+	FLAC__StreamMetadata *vorbis_comment_with_channel_mask_tag;
+	FLAC__StreamMetadata *pictures[64];
+	unsigned num_pictures;
+
+	FileFormat format;
+	union {
+		struct {
+			FLAC__bool is_big_endian;
+			FLAC__bool is_unsigned_samples;
+			unsigned channels;
+			unsigned bps;
+			unsigned sample_rate;
+		} raw;
+		struct {
+			foreign_metadata_t *foreign_metadata; /* NULL unless --keep-foreign-metadata requested */
+		} iff;
+	} format_options;
+
+	struct {
+		FLAC__bool disable_constant_subframes;
+		FLAC__bool disable_fixed_subframes;
+		FLAC__bool disable_verbatim_subframes;
+		FLAC__bool do_md5;
+	} debug;
+} encode_options_t;
+
+int flac__encode_file(FILE *infile, FLAC__off_t infilesize, const char *infilename, const char *outfilename, const FLAC__byte *lookahead, uint32_t lookahead_length, encode_options_t options);
+
+#endif

extern/flac/src/flac/foreign_metadata.c

@@ -0,0 +1,956 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h> /* for FILE etc. */
+#include <stdlib.h> /* for calloc() etc. */
+#include <string.h> /* for memcmp() etc. */
+#include "FLAC/assert.h"
+#include "FLAC/metadata.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+#include "foreign_metadata.h"
+
+#ifdef min
+#undef min
+#endif
+#define min(x,y) ((x)<(y)?(x):(y))
+
+const char *FLAC__FOREIGN_METADATA_APPLICATION_ID[FLAC__FOREIGN_METADATA_NUMBER_OF_RECOGNIZED_APPLICATION_IDS] = { "aiff" , "riff", "w64 " };
+
+static FLAC__uint32 unpack32be_(const FLAC__byte *b)
+{
+	return ((FLAC__uint32)b[0]<<24) + ((FLAC__uint32)b[1]<<16) + ((FLAC__uint32)b[2]<<8) + (FLAC__uint32)b[3];
+}
+
+static FLAC__uint32 unpack32le_(const FLAC__byte *b)
+{
+	return (FLAC__uint32)b[0] + ((FLAC__uint32)b[1]<<8) + ((FLAC__uint32)b[2]<<16) + ((FLAC__uint32)b[3]<<24);
+}
+
+static FLAC__uint64 unpack64le_(const FLAC__byte *b)
+{
+	return (FLAC__uint64)b[0] + ((FLAC__uint64)b[1]<<8) + ((FLAC__uint64)b[2]<<16) + ((FLAC__uint64)b[3]<<24) + ((FLAC__uint64)b[4]<<32) + ((FLAC__uint64)b[5]<<40) + ((FLAC__uint64)b[6]<<48) + ((FLAC__uint64)b[7]<<56);
+}
+
+/* copies 'size' bytes from file 'fin' to 'fout', filling in *error with 'read_error' or 'write_error' as necessary */
+static FLAC__bool copy_data_(FILE *fin, FILE *fout, size_t size, const char **error, const char * const read_error, const char * const write_error)
+{
+	FLAC__byte buffer[4096];
+	size_t left;
+	for(left = size; left > 0; ) {
+		size_t need = min(sizeof(buffer), left);
+		if(fread(buffer, 1, need, fin) < need) {
+			if(error) *error = read_error;
+			return false;
+		}
+		if(fwrite(buffer, 1, need, fout) < need) {
+			if(error) *error = write_error;
+			return false;
+		}
+		left -= need;
+	}
+	return true;
+}
+
+/* compare 'size' bytes from file 'fin' to 'fout', filling in *error with 'read_error' or 'write_error' as necessary */
+static FLAC__bool compare_data_(FILE *fin, FILE *fout, size_t size, const char **error, const char * const read_error, const char * const write_error, const char * const compare_error)
+{
+	FLAC__byte buffer_in[4096];
+	FLAC__byte buffer_out[4096]; /* sizes need to be the same */
+	size_t left;
+	for(left = size; left > 0; ) {
+		size_t need = min(sizeof(buffer_in), left);
+		if(fread(buffer_in, 1, need, fin) < need) {
+			if(error) *error = read_error;
+			return false;
+		}
+		if(fread(buffer_out, 1, need, fout) < need) {
+			if(error) *error = write_error;
+			return false;
+		}
+		if(memcmp(buffer_in, buffer_out, need)) {
+			if(error) *error = compare_error;
+			return false;
+		}
+		left -= need;
+	}
+	return true;
+}
+
+static FLAC__bool append_block_(foreign_metadata_t *fm, FLAC__off_t offset, FLAC__uint32 size, const char **error)
+{
+	foreign_block_t *fb;
+	if(size >= ((1u << FLAC__STREAM_METADATA_LENGTH_LEN) - FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8)) {
+		if(error) *error = "found foreign metadata chunk is too large (max is 16MiB per chunk)";
+		return false;
+	}
+	fb = safe_realloc_nofree_muladd2_(fm->blocks, sizeof(foreign_block_t), /*times (*/fm->num_blocks, /*+*/1/*)*/);
+	if(fb) {
+		fb[fm->num_blocks].offset = offset;
+		fb[fm->num_blocks].size = size;
+		fm->num_blocks++;
+		fm->blocks = fb;
+		return true;
+	}
+	if(error) *error = "out of memory";
+	return false;
+}
+
+static FLAC__bool read_from_aiff_(foreign_metadata_t *fm, FILE *f, const char **error)
+{
+	FLAC__byte buffer[12];
+	FLAC__off_t offset, eof_offset;
+	if((offset = ftello(f)) < 0) {
+		if(error) *error = "ftello() error (001)";
+		return false;
+	}
+	if(fread(buffer, 1, 12, f) < 12 || memcmp(buffer, "FORM", 4) || (memcmp(buffer+8, "AIFF", 4) && memcmp(buffer+8, "AIFC", 4))) {
+		if(error) *error = "unsupported FORM layout (002)";
+		return false;
+	}
+	if(!append_block_(fm, offset, 12, error))
+		return false;
+	eof_offset = (FLAC__off_t)8 + (FLAC__off_t)unpack32be_(buffer+4);
+	while(!feof(f)) {
+		FLAC__uint32 size;
+		if((offset = ftello(f)) < 0) {
+			if(error) *error = "ftello() error (003)";
+			return false;
+		}
+		if((size = fread(buffer, 1, 8, f)) < 8) {
+			if(size == 0 && feof(f))
+				break;
+			if(error) *error = "invalid AIFF file (004)";
+			return false;
+		}
+		size = unpack32be_(buffer+4);
+		/* check if pad byte needed */
+		if(size & 1)
+			size++;
+		if(!memcmp(buffer, "COMM", 4)) {
+			if(fm->format_block) {
+				if(error) *error = "invalid AIFF file: multiple \"COMM\" chunks (005)";
+				return false;
+			}
+			if(fm->audio_block) {
+				if(error) *error = "invalid AIFF file: \"SSND\" chunk before \"COMM\" chunk (006)";
+				return false;
+			}
+			fm->format_block = fm->num_blocks;
+		}
+		else if(!memcmp(buffer, "SSND", 4)) {
+			if(fm->audio_block) {
+				if(error) *error = "invalid AIFF file: multiple \"SSND\" chunks (007)";
+				return false;
+			}
+			if(!fm->format_block) {
+				if(error) *error = "invalid AIFF file: \"SSND\" chunk before \"COMM\" chunk (008)";
+				return false;
+			}
+			fm->audio_block = fm->num_blocks;
+			/* read #offset bytes */
+			if(fread(buffer+8, 1, 4, f) < 4) {
+				if(error) *error = "invalid AIFF file (009)";
+				return false;
+			}
+			fm->ssnd_offset_size = unpack32be_(buffer+8);
+			if(fseeko(f, -4, SEEK_CUR) < 0) {
+				if(error) *error = "invalid AIFF file: seek error (010)";
+				return false;
+			}
+			/* WATCHOUT: For SSND we ignore the blockSize and are not saving any
+			 * unaligned part at the end of the chunk.  In retrospect it is pretty
+			 * pointless to save the unaligned data before the PCM but now it is
+			 * done and cast in stone.
+			 */
+		}
+		if(!append_block_(fm, offset, 8 + (memcmp(buffer, "SSND", 4)? size : 8 + fm->ssnd_offset_size), error))
+			return false;
+		/* skip to next chunk */
+		if(fseeko(f, size, SEEK_CUR) < 0) {
+			if(error) *error = "invalid AIFF file: seek error (011)";
+			return false;
+		}
+	}
+	if(eof_offset != ftello(f)) {
+		if(error) *error = "invalid AIFF file: unexpected EOF (012)";
+		return false;
+	}
+	if(!fm->format_block) {
+		if(error) *error = "invalid AIFF file: missing \"COMM\" chunk (013)";
+		return false;
+	}
+	if(!fm->audio_block) {
+		if(error) *error = "invalid AIFF file: missing \"SSND\" chunk (014)";
+		return false;
+	}
+	return true;
+}
+
+static FLAC__bool read_from_wave_(foreign_metadata_t *fm, FILE *f, const char **error)
+{
+	FLAC__byte buffer[12];
+	FLAC__off_t offset, eof_offset = -1, ds64_data_size = -1;
+	if((offset = ftello(f)) < 0) {
+		if(error) *error = "ftello() error (001)";
+		return false;
+	}
+	if(fread(buffer, 1, 12, f) < 12 || (memcmp(buffer, "RIFF", 4) && memcmp(buffer, "RF64", 4)) || memcmp(buffer+8, "WAVE", 4)) {
+		if(error) *error = "unsupported RIFF layout (002)";
+		return false;
+	}
+	if(!memcmp(buffer, "RF64", 4))
+		fm->is_rf64 = true;
+	if(fm->is_rf64 && sizeof(FLAC__off_t) < 8) {
+		if(error) *error = "RF64 is not supported on this compile (r00)";
+		return false;
+	}
+	if(!append_block_(fm, offset, 12, error))
+		return false;
+	if(!fm->is_rf64 || unpack32le_(buffer+4) != 0xffffffff) {
+		eof_offset = (FLAC__off_t)8 + (FLAC__off_t)unpack32le_(buffer+4);
+		if(eof_offset & 1) /* fix odd RIFF size */
+			eof_offset++;
+	}
+	while(!feof(f)) {
+		FLAC__off_t size;
+		if((offset = ftello(f)) < 0) {
+			if(error) *error = "ftello() error (003)";
+			return false;
+		}
+		if((size = fread(buffer, 1, 8, f)) < 8) {
+			if(size == 0 && feof(f))
+				break;
+			if(error) *error = "invalid WAVE file (004)";
+			return false;
+		}
+		size = unpack32le_(buffer+4);
+		/* check if pad byte needed */
+		if(size & 1)
+			size++;
+		if(!memcmp(buffer, "fmt ", 4)) {
+			if(fm->format_block) {
+				if(error) *error = "invalid WAVE file: multiple \"fmt \" chunks (005)";
+				return false;
+			}
+			if(fm->audio_block) {
+				if(error) *error = "invalid WAVE file: \"data\" chunk before \"fmt \" chunk (006)";
+				return false;
+			}
+			fm->format_block = fm->num_blocks;
+		}
+		else if(!memcmp(buffer, "data", 4)) {
+			if(fm->audio_block) {
+				if(error) *error = "invalid WAVE file: multiple \"data\" chunks (007)";
+				return false;
+			}
+			if(!fm->format_block) {
+				if(error) *error = "invalid WAVE file: \"data\" chunk before \"fmt \" chunk (008)";
+				return false;
+			}
+			fm->audio_block = fm->num_blocks;
+			if(fm->is_rf64 && fm->num_blocks < 2) {
+				if(error) *error = "invalid RF64 file: \"data\" chunk before \"ds64\" chunk (r01)";
+				return false;
+			}
+		}
+		if(!append_block_(fm, offset, 8 + (memcmp(buffer, "data", 4)? size : 0), error))
+			return false;
+		/* parse ds64 chunk if necessary */
+		if(fm->is_rf64 && fm->num_blocks == 2) {
+			FLAC__byte buffer2[7*4];
+			if(memcmp(buffer, "ds64", 4)) {
+				if(error) *error = "invalid RF64 file: \"ds64\" chunk does not immediately follow \"WAVE\" marker (r02)";
+				return false;
+			}
+			/* unpack the size again since we don't want the padding byte effect */
+			size = unpack32le_(buffer+4);
+			if(size < (FLAC__off_t)sizeof(buffer2)) {
+				if(error) *error = "invalid RF64 file: \"ds64\" chunk size is < 28 (r03)";
+				return false;
+			}
+			if(size > (FLAC__off_t)sizeof(buffer2)) {
+				if(error) *error = "RF64 file has \"ds64\" chunk with extra size table, which is not currently supported (r04)";
+				return false;
+			}
+			if(fread(buffer2, 1, sizeof(buffer2), f) < sizeof(buffer2)) {
+				if(error) *error = "unexpected EOF reading \"ds64\" chunk data in RF64 file (r05)";
+				return false;
+			}
+			ds64_data_size = (FLAC__off_t)unpack64le_(buffer2+8);
+			if(ds64_data_size == (FLAC__off_t)(-1)) {
+				if(error) *error = "RF64 file has \"ds64\" chunk with data size == -1 (r08)";
+				return false;
+			}
+			/* check if pad byte needed */
+			if(ds64_data_size & 1)
+				ds64_data_size++;
+			/* @@@ [2^63 limit] */
+			if(ds64_data_size < 0) {
+				if(error) *error = "RF64 file too large (r09)";
+				return false;
+			}
+			if(unpack32le_(buffer2+24)) {
+				if(error) *error = "RF64 file has \"ds64\" chunk with extra size table, which is not currently supported (r06)";
+				return false;
+			}
+			eof_offset = (FLAC__off_t)8 + (FLAC__off_t)unpack64le_(buffer2);
+			/* @@@ [2^63 limit] */
+			if((FLAC__off_t)unpack64le_(buffer2) < 0 || eof_offset < 0) {
+				if(error) *error = "RF64 file too large (r07)";
+				return false;
+			}
+		}
+		else { /* skip to next chunk */
+			if(fm->is_rf64 && !memcmp(buffer, "data", 4) && unpack32le_(buffer+4) == 0xffffffff) {
+				if(fseeko(f, ds64_data_size, SEEK_CUR) < 0) {
+					if(error) *error = "invalid RF64 file: seek error (r10)";
+					return false;
+				}
+			}
+			else {
+				if(fseeko(f, size, SEEK_CUR) < 0) {
+					if(error) *error = "invalid WAVE file: seek error (009)";
+					return false;
+				}
+			}
+		}
+	}
+	if(fm->is_rf64 && eof_offset == (FLAC__off_t)(-1)) {
+		if(error) *error = "invalid RF64 file: all RIFF sizes are -1 (r11)";
+		return false;
+	}
+	if(eof_offset != ftello(f)) {
+		if(error) *error = "invalid WAVE file: unexpected EOF (010)";
+		return false;
+	}
+	if(!fm->format_block) {
+		if(error) *error = "invalid WAVE file: missing \"fmt \" chunk (011)";
+		return false;
+	}
+	if(!fm->audio_block) {
+		if(error) *error = "invalid WAVE file: missing \"data\" chunk (012)";
+		return false;
+	}
+	return true;
+}
+
+static FLAC__bool read_from_wave64_(foreign_metadata_t *fm, FILE *f, const char **error)
+{
+	FLAC__byte buffer[40];
+	FLAC__off_t offset, eof_offset = -1;
+	if((offset = ftello(f)) < 0) {
+		if(error) *error = "ftello() error (001)";
+		return false;
+	}
+	if(
+		fread(buffer, 1, 40, f) < 40 ||
+		/* RIFF GUID 66666972-912E-11CF-A5D6-28DB04C10000 */
+		memcmp(buffer, "\x72\x69\x66\x66\x2E\x91\xCF\x11\xA5\xD6\x28\xDB\x04\xC1\x00\x00", 16) ||
+		/* WAVE GUID 65766177-ACF3-11D3-8CD1-00C04F8EDB8A */
+		memcmp(buffer+24, "\x77\x61\x76\x65\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 16)
+	) {
+		if(error) *error = "unsupported Wave64 layout (002)";
+		return false;
+	}
+	if(sizeof(FLAC__off_t) < 8) {
+		if(error) *error = "Wave64 is not supported on this compile (r00)";
+		return false;
+	}
+	if(!append_block_(fm, offset, 40, error))
+		return false;
+	eof_offset = (FLAC__off_t)unpack64le_(buffer+16); /*@@@ [2^63 limit] */
+	while(!feof(f)) {
+		FLAC__uint64 size;
+		if((offset = ftello(f)) < 0) {
+			if(error) *error = "ftello() error (003)";
+			return false;
+		}
+		if((size = fread(buffer, 1, 24, f)) < 24) {
+			if(size == 0 && feof(f))
+				break;
+			if(error) *error = "invalid Wave64 file (004)";
+			return false;
+		}
+		size = unpack64le_(buffer+16);
+		/* check if pad bytes needed */
+		if(size & 7)
+			size = (size+7) & (~((FLAC__uint64)7));
+		if(size < 24) {
+			if(error) *error = "invalid Wave64 file: chunk length invalid";
+			return false;
+		}
+		/* fmt GUID 20746D66-ACF3-11D3-8CD1-00C04F8EDB8A */
+		if(!memcmp(buffer, "\x66\x6D\x74\x20\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 16)) {
+			if(fm->format_block) {
+				if(error) *error = "invalid Wave64 file: multiple \"fmt \" chunks (005)";
+				return false;
+			}
+			if(fm->audio_block) {
+				if(error) *error = "invalid Wave64 file: \"data\" chunk before \"fmt \" chunk (006)";
+				return false;
+			}
+			fm->format_block = fm->num_blocks;
+		}
+		/* data GUID 61746164-ACF3-11D3-8CD1-00C04F8EDB8A */
+		else if(!memcmp(buffer, "\x64\x61\x74\x61\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 16)) {
+			if(fm->audio_block) {
+				if(error) *error = "invalid Wave64 file: multiple \"data\" chunks (007)";
+				return false;
+			}
+			if(!fm->format_block) {
+				if(error) *error = "invalid Wave64 file: \"data\" chunk before \"fmt \" chunk (008)";
+				return false;
+			}
+			fm->audio_block = fm->num_blocks;
+		}
+		if(!append_block_(fm, offset, memcmp(buffer, "\x64\x61\x74\x61\xF3\xAC\xD3\x11\x8C\xD1\x00\xC0\x4F\x8E\xDB\x8A", 16)? (FLAC__uint32)size : 16+8, error))
+			return false;
+		/* skip to next chunk */
+		if(fseeko(f, size-24, SEEK_CUR) < 0) {
+			if(error) *error = "invalid Wave64 file: seek error (009)";
+			return false;
+		}
+	}
+	if(eof_offset != ftello(f)) {
+		if(error) *error = "invalid Wave64 file: unexpected EOF (010)";
+		return false;
+	}
+	if(!fm->format_block) {
+		if(error) *error = "invalid Wave64 file: missing \"fmt \" chunk (011)";
+		return false;
+	}
+	if(!fm->audio_block) {
+		if(error) *error = "invalid Wave64 file: missing \"data\" chunk (012)";
+		return false;
+	}
+	return true;
+}
+
+static FLAC__bool write_to_flac_(foreign_metadata_t *fm, FILE *fin, FILE *fout, FLAC__Metadata_SimpleIterator *it, const char **error)
+{
+	FLAC__byte buffer[4];
+	const uint32_t ID_LEN = FLAC__STREAM_METADATA_APPLICATION_ID_LEN/8;
+	size_t block_num = 0;
+	FLAC__ASSERT(sizeof(buffer) >= ID_LEN);
+	while(block_num < fm->num_blocks) {
+		/* find next matching padding block */
+		do {
+			/* even on the first chunk's loop there will be a skippable STREAMINFO block, on subsequent loops we are first moving past the PADDING we just used */
+			if(!FLAC__metadata_simple_iterator_next(it)) {
+				if(error) *error = "no matching PADDING block found (004)";
+				return false;
+			}
+		} while(FLAC__metadata_simple_iterator_get_block_type(it) != FLAC__METADATA_TYPE_PADDING);
+		if(FLAC__metadata_simple_iterator_get_block_length(it) != ID_LEN+fm->blocks[block_num].size) {
+			if(error) *error = "PADDING block with wrong size found (005)";
+			return false;
+		}
+		/* transfer chunk into APPLICATION block */
+		/* first set up the file pointers */
+		if(fseeko(fin, fm->blocks[block_num].offset, SEEK_SET) < 0) {
+			if(error) *error = "seek failed in WAVE/AIFF file (006)";
+			return false;
+		}
+		if(fseeko(fout, FLAC__metadata_simple_iterator_get_block_offset(it), SEEK_SET) < 0) {
+			if(error) *error = "seek failed in FLAC file (007)";
+			return false;
+		}
+		/* update the type */
+		buffer[0] = FLAC__METADATA_TYPE_APPLICATION;
+		if(FLAC__metadata_simple_iterator_is_last(it))
+			buffer[0] |= 0x80; /*MAGIC number*/
+		if(fwrite(buffer, 1, 1, fout) < 1) {
+			if(error) *error = "write failed in FLAC file (008)";
+			return false;
+		}
+		/* length stays the same so skip over it */
+		if(fseeko(fout, FLAC__STREAM_METADATA_LENGTH_LEN/8, SEEK_CUR) < 0) {
+			if(error) *error = "seek failed in FLAC file (009)";
+			return false;
+		}
+		/* write the APPLICATION ID */
+		memcpy(buffer, FLAC__FOREIGN_METADATA_APPLICATION_ID[fm->type], ID_LEN);
+		if(fwrite(buffer, 1, ID_LEN, fout) < ID_LEN) {
+			if(error) *error = "write failed in FLAC file (010)";
+			return false;
+		}
+		/* transfer the foreign metadata */
+		if(!copy_data_(fin, fout, fm->blocks[block_num].size, error, "read failed in WAVE/AIFF file (011)", "write failed in FLAC file (012)"))
+			return false;
+		block_num++;
+	}
+	return true;
+}
+
+static FLAC__bool read_from_flac_(foreign_metadata_t *fm, FILE *f, FLAC__Metadata_SimpleIterator *it, const char **error)
+{
+	FLAC__byte id[4], buffer[32];
+	FLAC__off_t offset;
+	FLAC__uint32 length;
+	FLAC__bool first_block = true, type_found = false, ds64_found = false;
+
+	FLAC__ASSERT(FLAC__STREAM_METADATA_APPLICATION_ID_LEN == sizeof(id)*8);
+
+	while(FLAC__metadata_simple_iterator_next(it)) {
+		if(FLAC__metadata_simple_iterator_get_block_type(it) != FLAC__METADATA_TYPE_APPLICATION)
+			continue;
+		if(!FLAC__metadata_simple_iterator_get_application_id(it, id)) {
+			if(error) *error = "FLAC__metadata_simple_iterator_get_application_id() error (002)";
+			return false;
+		}
+		if(first_block) {
+			uint32_t i;
+			for(i = 0; i < FLAC__FOREIGN_METADATA_NUMBER_OF_RECOGNIZED_APPLICATION_IDS; i++)
+				if(memcmp(id, FLAC__FOREIGN_METADATA_APPLICATION_ID[i], sizeof(id)) == 0) {
+					fm->type = i;
+					first_block = false;
+				}
+			if(first_block) /* means no first foreign metadata block was found yet */
+				continue;
+		}
+		else if(memcmp(id, FLAC__FOREIGN_METADATA_APPLICATION_ID[fm->type], sizeof(id)))
+			continue;
+		offset = FLAC__metadata_simple_iterator_get_block_offset(it);
+		length = FLAC__metadata_simple_iterator_get_block_length(it);
+		/* skip over header and app ID */
+		offset += (FLAC__STREAM_METADATA_IS_LAST_LEN + FLAC__STREAM_METADATA_TYPE_LEN + FLAC__STREAM_METADATA_LENGTH_LEN) / 8;
+		offset += sizeof(id);
+		/* look for format or audio blocks */
+		if(fseeko(f, offset, SEEK_SET) < 0) {
+			if(error) *error = "seek error (003)";
+			return false;
+		}
+		if(fread(buffer, 1, 4, f) != 4) {
+			if(error) *error = "read error (004)";
+			return false;
+		}
+		if(fm->num_blocks == 0) { /* first block? */
+			/* Initialize bools */
+			fm->is_wavefmtex = 0;
+			fm->is_aifc = 0;
+			fm->is_sowt = 0;
+			fm->is_rf64 = 0 == memcmp(buffer, "RF64", 4);
+
+			if(fm->type == FOREIGN_BLOCK_TYPE__RIFF && (0 == memcmp(buffer, "RIFF", 4) || fm->is_rf64))
+				type_found = true;
+			else if(fm->type == FOREIGN_BLOCK_TYPE__WAVE64 && 0 == memcmp(buffer, "riff", 4)) /* use first 4 bytes instead of whole GUID */
+				type_found = true;
+			else if(fm->type == FOREIGN_BLOCK_TYPE__AIFF && 0 == memcmp(buffer, "FORM", 4)) {
+				type_found = true;
+				if(fread(buffer+4, 1, 8, f) != 8) {
+					if(error) *error = "read error (020)";
+					return false;
+				}
+				fm->is_aifc = 0 == memcmp(buffer+8, "AIFC", 4);
+			}
+			else {
+				if(error) *error = "unsupported foreign metadata found, may need newer FLAC decoder (005)";
+				return false;
+			}
+		}
+		else if(!type_found) {
+			FLAC__ASSERT(0);
+			/* double protection: */
+			if(error) *error = "unsupported foreign metadata found, may need newer FLAC decoder (006)";
+			return false;
+		}
+		else if(fm->type == FOREIGN_BLOCK_TYPE__RIFF) {
+			if(!memcmp(buffer, "fmt ", 4)) {
+				if(fm->format_block) {
+					if(error) *error = "invalid WAVE metadata: multiple \"fmt \" chunks (007)";
+					return false;
+				}
+				if(fm->audio_block) {
+					if(error) *error = "invalid WAVE metadata: \"data\" chunk before \"fmt \" chunk (008)";
+					return false;
+				}
+				fm->format_block = fm->num_blocks;
+				if(fread(buffer+4, 1, 8, f) != 8) {
+					if(error) *error = "read error (020)";
+					return false;
+				}
+				fm->is_wavefmtex = 0 == memcmp(buffer+8, "\xfe\xff", 2);
+			}
+			else if(!memcmp(buffer, "data", 4)) {
+				if(fm->audio_block) {
+					if(error) *error = "invalid WAVE metadata: multiple \"data\" chunks (009)";
+					return false;
+				}
+				if(!fm->format_block) {
+					if(error) *error = "invalid WAVE metadata: \"data\" chunk before \"fmt \" chunk (010)";
+					return false;
+				}
+				fm->audio_block = fm->num_blocks;
+			}
+			else if(fm->is_rf64 && fm->num_blocks == 1) {
+				if(memcmp(buffer, "ds64", 4)) {
+					if(error) *error = "invalid RF64 metadata: second chunk is not \"ds64\" (011)";
+					return false;
+				}
+				ds64_found = true;
+			}
+		}
+		else if(fm->type == FOREIGN_BLOCK_TYPE__WAVE64) {
+			if(!memcmp(buffer, "fmt ", 4)) { /* use first 4 bytes instead of whole GUID */
+				if(fm->format_block) {
+					if(error) *error = "invalid Wave64 metadata: multiple \"fmt \" chunks (012)";
+					return false;
+				}
+				if(fm->audio_block) {
+					if(error) *error = "invalid Wave64 metadata: \"data\" chunk before \"fmt \" chunk (013)";
+					return false;
+				}
+				fm->format_block = fm->num_blocks;
+			}
+			else if(!memcmp(buffer, "data", 4)) { /* use first 4 bytes instead of whole GUID */
+				if(fm->audio_block) {
+					if(error) *error = "invalid Wave64 metadata: multiple \"data\" chunks (014)";
+					return false;
+				}
+				if(!fm->format_block) {
+					if(error) *error = "invalid Wave64 metadata: \"data\" chunk before \"fmt \" chunk (015)";
+					return false;
+				}
+				fm->audio_block = fm->num_blocks;
+			}
+		}
+		else if(fm->type == FOREIGN_BLOCK_TYPE__AIFF) {
+			if(!memcmp(buffer, "COMM", 4)) {
+				if(fm->format_block) {
+					if(error) *error = "invalid AIFF metadata: multiple \"COMM\" chunks (016)";
+					return false;
+				}
+				if(fm->audio_block) {
+					if(error) *error = "invalid AIFF metadata: \"SSND\" chunk before \"COMM\" chunk (017)";
+					return false;
+				}
+				fm->format_block = fm->num_blocks;
+				if(fm->is_aifc) {
+					if(fread(buffer+4, 1, 26, f) != 26) {
+						if(error) *error = "read error (020)";
+						return false;
+					}
+					fm->is_sowt = 0 == memcmp(buffer+26, "sowt", 2);
+					fm->aifc_comm_length = length;
+				}
+			}
+			else if(!memcmp(buffer, "SSND", 4)) {
+				if(fm->audio_block) {
+					if(error) *error = "invalid AIFF metadata: multiple \"SSND\" chunks (018)";
+					return false;
+				}
+				if(!fm->format_block) {
+					if(error) *error = "invalid AIFF metadata: \"SSND\" chunk before \"COMM\" chunk (019)";
+					return false;
+				}
+				fm->audio_block = fm->num_blocks;
+				/* read SSND offset size */
+				if(fread(buffer+4, 1, 8, f) != 8) {
+					if(error) *error = "read error (020)";
+					return false;
+				}
+				fm->ssnd_offset_size = unpack32be_(buffer+8);
+			}
+		}
+		else {
+			FLAC__ASSERT(0);
+			/* double protection: */
+			if(error) *error = "unsupported foreign metadata found, may need newer FLAC decoder (021)";
+			return false;
+		}
+		if(!append_block_(fm, offset, FLAC__metadata_simple_iterator_get_block_length(it)-sizeof(id), error))
+			return false;
+	}
+	if(fm->is_rf64 && !ds64_found) {
+		if(error) *error = "invalid RF64 file: second chunk is not \"ds64\" (023)";
+		return false;
+	}
+	if(!fm->format_block) {
+		if(error)
+			*error =
+				fm->type==FOREIGN_BLOCK_TYPE__RIFF? "invalid WAVE file: missing \"fmt \" chunk (024)" :
+				fm->type==FOREIGN_BLOCK_TYPE__WAVE64? "invalid Wave64 file: missing \"fmt \" chunk (025)" :
+				"invalid AIFF file: missing \"COMM\" chunk (026)";
+		return false;
+	}
+	if(!fm->audio_block) {
+		if(error)
+			*error =
+				fm->type==FOREIGN_BLOCK_TYPE__RIFF? "invalid WAVE file: missing \"data\" chunk (027)" :
+				fm->type==FOREIGN_BLOCK_TYPE__WAVE64? "invalid Wave64 file: missing \"data\" chunk (028)" :
+				"invalid AIFF file: missing \"SSND\" chunk (029)";
+		return false;
+	}
+	return true;
+}
+
+static FLAC__bool write_to_iff_(foreign_metadata_t *fm, FILE *fin, FILE *fout, FLAC__off_t offset1, FLAC__off_t offset2, FLAC__off_t offset3, const char **error)
+{
+	size_t i;
+	if(fseeko(fout, offset1, SEEK_SET) < 0) {
+		if(error) *error = "seek failed in WAVE/AIFF file";
+		return false;
+	}
+
+	/* don't write first (RIFF/RF64/FORM) chunk, or ds64 chunk in the case of RF64 */
+	for(i = fm->is_rf64?2:1; i < fm->format_block; i++) {
+		if(fseeko(fin, fm->blocks[i].offset, SEEK_SET) < 0) {
+			if(error) *error = "seek failed in FLAC file";
+			return false;
+		}
+		if(!copy_data_(fin, fout, fm->blocks[i].size, error, "read failed in FLAC file", "write failed in WAVE/AIFF file"))
+			return false;
+	}
+
+	if(fm->is_aifc) {
+		/* Need to restore compression type name */
+		if(fseeko(fout, 30, SEEK_CUR) < 0) {
+			if(error) *error = "seek failed in AIFF-C file";
+			return false;
+		}
+		if(fseeko(fin, fm->blocks[i].offset+30, SEEK_SET) < 0) {
+			if(error) *error = "seek failed in FLAC file";
+			return false;
+		}
+		if(!copy_data_(fin, fout, fm->aifc_comm_length-34, error, "read failed in FLAC file", "write failed in WAVE/AIFF file"))
+			return false;
+		/* Now seek back */
+		if(fseeko(fout, ((FLAC__int32)(fm->aifc_comm_length) * -1) + 4, SEEK_CUR) < 0) {
+			if(error) *error = "seek failed in AIFF-C file";
+			return false;
+		}
+	}
+	if(fseeko(fout, offset2, SEEK_SET) < 0) {
+		if(error) *error = "seek failed in WAVE/AIFF file (006)";
+		return false;
+	}
+	for(i = fm->format_block+1; i < fm->audio_block; i++) {
+		if(fseeko(fin, fm->blocks[i].offset, SEEK_SET) < 0) {
+			if(error) *error = "seek failed in FLAC file";
+			return false;
+		}
+		if(!copy_data_(fin, fout, fm->blocks[i].size, error, "read failed in FLAC file", "write failed in WAVE/AIFF file"))
+			return false;
+	}
+	if(fseeko(fout, offset3, SEEK_SET) < 0) {
+		if(error) *error = "seek failed in WAVE/AIFF file";
+		return false;
+	}
+	for(i = fm->audio_block+1; i < fm->num_blocks; i++) {
+		if(fseeko(fin, fm->blocks[i].offset, SEEK_SET) < 0) {
+			if(error) *error = "seek failed in FLAC file";
+			return false;
+		}
+		if(!copy_data_(fin, fout, fm->blocks[i].size, error, "read failed in FLAC file", "write failed in WAVE/AIFF file"))
+			return false;
+	}
+	return true;
+}
+
+static FLAC__bool compare_with_iff_(foreign_metadata_t *fm, FILE *fin, FILE *fout, FLAC__off_t offset3, const char **error)
+{
+	size_t i;
+
+	/* Compare blocks before audio data */
+	for(i = 0; i <= (fm->audio_block); i++) {
+		if(fseeko(fin, fm->blocks[i].offset, SEEK_SET) < 0) {
+			if(error) *error = "seek failed in FLAC file";
+			return false;
+		}
+		if(!compare_data_(fin, fout, fm->blocks[i].size, error, "read failed in FLAC file", "read failed in WAVE/AIFF file",
+		      i==0?"stored main chunk length differs from written length":(
+		      i==fm->format_block?"stored foreign format block differs from written block. Perhaps the file is being restored to a different format than that of the original file":(
+		      i==fm->audio_block?"stored audio length differs from written length. Perhaps the file changed in length after being originally encoded":"restore of foreign metadata failed"))))
+			return false;
+	}
+
+	/* Seek beyond audio */
+	if(fseeko(fout, offset3, SEEK_SET) < 0) {
+		if(error) *error = "seek failed in WAVE/AIFF file";
+		return false;
+	}
+	for(; i < fm->num_blocks; i++) {
+		if(fseeko(fin, fm->blocks[i].offset, SEEK_SET) < 0) {
+			if(error) *error = "seek failed in FLAC file";
+			return false;
+		}
+		if(!compare_data_(fin, fout, fm->blocks[i].size, error, "read failed in FLAC file", "read failed in WAVE/AIFF file", "restore of foreign metadata failed"))
+			return false;
+	}
+	return true;
+}
+
+foreign_metadata_t *flac__foreign_metadata_new(foreign_block_type_t type)
+{
+	/* calloc() to zero all the member variables */
+	foreign_metadata_t *x = calloc(1, sizeof(foreign_metadata_t));
+	if(x) {
+		x->type = type;
+		x->is_rf64 = false;
+	}
+	return x;
+}
+
+void flac__foreign_metadata_delete(foreign_metadata_t *fm)
+{
+	if(fm) {
+		if(fm->blocks)
+			free(fm->blocks);
+		free(fm);
+	}
+}
+
+FLAC__bool flac__foreign_metadata_read_from_aiff(foreign_metadata_t *fm, const char *filename, const char **error)
+{
+	FLAC__bool ok;
+	FILE *f = flac_fopen(filename, "rb");
+	if(!f) {
+		if(error) *error = "can't open AIFF file for reading (000)";
+		return false;
+	}
+	ok = read_from_aiff_(fm, f, error);
+	fclose(f);
+	return ok;
+}
+
+FLAC__bool flac__foreign_metadata_read_from_wave(foreign_metadata_t *fm, const char *filename, const char **error)
+{
+	FLAC__bool ok;
+	FILE *f = flac_fopen(filename, "rb");
+	if(!f) {
+		if(error) *error = "can't open WAVE file for reading (000)";
+		return false;
+	}
+	ok = read_from_wave_(fm, f, error);
+	fclose(f);
+	return ok;
+}
+
+FLAC__bool flac__foreign_metadata_read_from_wave64(foreign_metadata_t *fm, const char *filename, const char **error)
+{
+	FLAC__bool ok;
+	FILE *f = flac_fopen(filename, "rb");
+	if(!f) {
+		if(error) *error = "can't open Wave64 file for reading (000)";
+		return false;
+	}
+	ok = read_from_wave64_(fm, f, error);
+	fclose(f);
+	return ok;
+}
+
+FLAC__bool flac__foreign_metadata_write_to_flac(foreign_metadata_t *fm, const char *infilename, const char *outfilename, const char **error)
+{
+	FLAC__bool ok;
+	FILE *fin, *fout;
+	FLAC__Metadata_SimpleIterator *it = FLAC__metadata_simple_iterator_new();
+	if(!it) {
+		if(error) *error = "out of memory (000)";
+		return false;
+	}
+	if(!FLAC__metadata_simple_iterator_init(it, outfilename, /*read_only=*/true, /*preserve_file_stats=*/false)) {
+		if(error) *error = "can't initialize iterator (001)";
+		FLAC__metadata_simple_iterator_delete(it);
+		return false;
+	}
+	if(0 == (fin = flac_fopen(infilename, "rb"))) {
+		if(error) *error = "can't open WAVE/AIFF file for reading (002)";
+		FLAC__metadata_simple_iterator_delete(it);
+		return false;
+	}
+	if(0 == (fout = flac_fopen(outfilename, "r+b"))) {
+		if(error) *error = "can't open FLAC file for updating (003)";
+		FLAC__metadata_simple_iterator_delete(it);
+		fclose(fin);
+		return false;
+	}
+	ok = write_to_flac_(fm, fin, fout, it, error);
+	FLAC__metadata_simple_iterator_delete(it);
+	fclose(fin);
+	fclose(fout);
+	return ok;
+}
+
+FLAC__bool flac__foreign_metadata_read_from_flac(foreign_metadata_t *fm, const char *filename, const char **error)
+{
+	FLAC__bool ok;
+	FILE *f;
+	FLAC__Metadata_SimpleIterator *it = FLAC__metadata_simple_iterator_new();
+	if(!it) {
+		if(error) *error = "out of memory (000)";
+		return false;
+	}
+	if(!FLAC__metadata_simple_iterator_init(it, filename, /*read_only=*/true, /*preserve_file_stats=*/false)) {
+		if(error) *error = "can't initialize iterator (001)";
+		FLAC__metadata_simple_iterator_delete(it);
+		return false;
+	}
+	if(0 == (f = flac_fopen(filename, "rb"))) {
+		if(error) *error = "can't open FLAC file for reading (002)";
+		FLAC__metadata_simple_iterator_delete(it);
+		return false;
+	}
+	ok = read_from_flac_(fm, f, it, error);
+	FLAC__metadata_simple_iterator_delete(it);
+	fclose(f);
+	return ok;
+}
+
+FLAC__bool flac__foreign_metadata_write_to_iff(foreign_metadata_t *fm, const char *infilename, const char *outfilename, FLAC__off_t offset1, FLAC__off_t offset2, FLAC__off_t offset3, const char **error)
+{
+	FLAC__bool ok;
+	FILE *fin, *fout;
+	if(0 == (fin = flac_fopen(infilename, "rb"))) {
+		if(error) *error = "can't open FLAC file for reading (000)";
+		return false;
+	}
+	if(0 == (fout = flac_fopen(outfilename, "r+b"))) {
+		if(error) *error = "can't open WAVE/AIFF file for updating (001)";
+		fclose(fin);
+		return false;
+	}
+	ok = write_to_iff_(fm, fin, fout, offset1, offset2, offset3, error);
+	fclose(fin);
+	fclose(fout);
+	return ok;
+}
+
+FLAC__bool flac__foreign_metadata_compare_with_iff(foreign_metadata_t *fm, const char *infilename, const char *outfilename, FLAC__off_t offset3, const char **error)
+{
+	FLAC__bool ok;
+	FILE *fin, *fout;
+	if(0 == (fin = flac_fopen(infilename, "rb"))) {
+		if(error) *error = "can't open FLAC file for reading";
+		return false;
+	}
+	if(0 == (fout = flac_fopen(outfilename, "rb"))) {
+		if(error) *error = "can't open WAVE/AIFF file for comparing";
+		fclose(fin);
+		return false;
+	}
+	ok = compare_with_iff_(fm, fin, fout, offset3, error);
+	fclose(fin);
+	fclose(fout);
+	return ok;
+}

extern/flac/src/flac/foreign_metadata.h

@@ -0,0 +1,83 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef flac__foreign_metadata_h
+#define flac__foreign_metadata_h
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "FLAC/metadata.h"
+#include "utils.h"
+#include "share/compat.h"
+
+#define FLAC__FOREIGN_METADATA_NUMBER_OF_RECOGNIZED_APPLICATION_IDS 3
+
+extern const char *FLAC__FOREIGN_METADATA_APPLICATION_ID[FLAC__FOREIGN_METADATA_NUMBER_OF_RECOGNIZED_APPLICATION_IDS];
+
+/* WATCHOUT: these enums are used to index internal arrays */
+typedef enum {
+	FOREIGN_BLOCK_TYPE__AIFF = 0, /* for AIFF and AIFF-C */
+	FOREIGN_BLOCK_TYPE__RIFF = 1, /* for WAVE and RF64 */
+	FOREIGN_BLOCK_TYPE__WAVE64 = 2  /* only for Sony's flavor */
+} foreign_block_type_t;
+
+typedef struct {
+	/* for encoding, this will be the offset in the WAVE/AIFF file of the chunk */
+	/* for decoding, this will be the offset in the FLAC file of the chunk data inside the APPLICATION block */
+	FLAC__off_t offset;
+	/* size is the actual size in bytes of the chunk to be stored/recreated. */
+	/* It includes the 8 bytes of chunk type and size, and any padding byte for alignment. */
+	/* For 'data'/'SSND' chunks, the size does not include the actual sound or padding bytes */
+	/* because these are not stored, they are recreated from the compressed FLAC stream. */
+	/* So for RIFF 'data', size is 8, and for AIFF 'SSND', size is 8 + 8 + ssnd_offset_size */
+	/* 32 bit size is OK because we only care about the non-sound data and FLAC metadata */
+	/* only supports a few megs anyway. */
+	FLAC__uint32 size;
+} foreign_block_t;
+
+typedef struct {
+	foreign_block_type_t type; /* currently we don't support multiple foreign types in a stream (and maybe never will) */
+	foreign_block_t *blocks;
+	size_t num_blocks;
+	size_t format_block; /* block number of 'fmt ' or 'COMM' chunk */
+	size_t audio_block; /* block number of 'data' or 'SSND' chunk */
+	FLAC__bool is_rf64; /* always false if type!=RIFF */
+	FLAC__bool is_wavefmtex; /* always false if type!=RIFF */
+	FLAC__bool is_aifc;  /* always false if type!=AIFF */
+	FLAC__bool is_sowt;  /* always false if type!=AIFF */
+	FLAC__uint32 aifc_comm_length;
+	FLAC__uint32 ssnd_offset_size; /* 0 if type!=AIFF */
+} foreign_metadata_t;
+
+foreign_metadata_t *flac__foreign_metadata_new(foreign_block_type_t type);
+
+void flac__foreign_metadata_delete(foreign_metadata_t *fm);
+
+FLAC__bool flac__foreign_metadata_read_from_aiff(foreign_metadata_t *fm, const char *filename, const char **error);
+FLAC__bool flac__foreign_metadata_read_from_wave(foreign_metadata_t *fm, const char *filename, const char **error);
+FLAC__bool flac__foreign_metadata_read_from_wave64(foreign_metadata_t *fm, const char *filename, const char **error);
+FLAC__bool flac__foreign_metadata_write_to_flac(foreign_metadata_t *fm, const char *infilename, const char *outfilename, const char **error);
+
+FLAC__bool flac__foreign_metadata_read_from_flac(foreign_metadata_t *fm, const char *filename, const char **error);
+FLAC__bool flac__foreign_metadata_write_to_iff(foreign_metadata_t *fm, const char *infilename, const char *outfilename, FLAC__off_t offset1, FLAC__off_t offset2, FLAC__off_t offset3, const char **error);
+FLAC__bool flac__foreign_metadata_compare_with_iff(foreign_metadata_t *fm, const char *infilename, const char *outfilename, FLAC__off_t offset3, const char **error);
+
+#endif

extern/flac/src/flac/iffscan.c

@@ -0,0 +1,129 @@
+/* iffscan - Simple AIFF/RIFF chunk scanner
+ * Copyright (C) 2007-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "share/compat.h"
+#include "foreign_metadata.h"
+
+static FLAC__uint32 unpack32be_(const FLAC__byte *b)
+{
+	return ((FLAC__uint32)b[0]<<24) + ((FLAC__uint32)b[1]<<16) + ((FLAC__uint32)b[2]<<8) + (FLAC__uint32)b[3];
+}
+
+static FLAC__uint32 unpack32le_(const FLAC__byte *b)
+{
+	return (FLAC__uint32)b[0] + ((FLAC__uint32)b[1]<<8) + ((FLAC__uint32)b[2]<<16) + ((FLAC__uint32)b[3]<<24);
+}
+
+static FLAC__uint64 unpack64le_(const FLAC__byte *b)
+{
+	return (FLAC__uint64)b[0] + ((FLAC__uint64)b[1]<<8) + ((FLAC__uint64)b[2]<<16) + ((FLAC__uint64)b[3]<<24) + ((FLAC__uint64)b[4]<<32) + ((FLAC__uint64)b[5]<<40) + ((FLAC__uint64)b[6]<<48) + ((FLAC__uint64)b[7]<<56);
+}
+
+static FLAC__uint32 unpack32_(const FLAC__byte *b, foreign_block_type_t type)
+{
+	if(type == FOREIGN_BLOCK_TYPE__AIFF)
+		return unpack32be_(b);
+	else
+		return unpack32le_(b);
+}
+
+int main(int argc, char *argv[])
+{
+	FILE *f;
+	char buf[36];
+	foreign_metadata_t *fm;
+	const char *fn, *error;
+	size_t i;
+	FLAC__uint32 size;
+
+#ifdef _WIN32
+	if (get_utf8_argv(&argc, &argv) != 0) {
+		fprintf(stderr, "ERROR: failed to convert command line parameters to UTF-8\n");
+		return 1;
+	}
+#endif
+
+	if(argc != 2) {
+		flac_fprintf(stderr, "usage: %s { file.wav | file.aif }\n", argv[0]);
+		return 1;
+	}
+	fn = argv[1];
+	if(0 == (f = flac_fopen(fn, "rb")) || fread(buf, 1, 4, f) != 4) {
+		flac_fprintf(stderr, "ERROR opening %s for reading\n", fn);
+		return 1;
+	}
+	fclose(f);
+	if(0 == (fm = flac__foreign_metadata_new(memcmp(buf, "RIFF", 4) && memcmp(buf, "RF64", 4)? FOREIGN_BLOCK_TYPE__AIFF : FOREIGN_BLOCK_TYPE__RIFF))) {
+		flac_fprintf(stderr, "ERROR: out of memory\n");
+		return 1;
+	}
+	if(fm->type == FOREIGN_BLOCK_TYPE__AIFF) {
+		if(!flac__foreign_metadata_read_from_aiff(fm, fn, &error)) {
+			flac_fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
+			return 1;
+		}
+	}
+	else {
+		if(!flac__foreign_metadata_read_from_wave(fm, fn, &error)) {
+			flac_fprintf(stderr, "ERROR reading chunks from %s: %s\n", fn, error);
+			return 1;
+		}
+	}
+	if(0 == (f = flac_fopen(fn, "rb"))) {
+		flac_fprintf(stderr, "ERROR opening %s for reading\n", fn);
+		return 1;
+	}
+	for(i = 0; i < fm->num_blocks; i++) {
+		if(fseeko(f, fm->blocks[i].offset, SEEK_SET) < 0) {
+			flac_fprintf(stderr, "ERROR seeking in %s\n", fn);
+			return 1;
+		}
+		if(fread(buf, 1, i==0?12:8, f) != (i==0?12:8)) {
+			flac_fprintf(stderr, "ERROR reading %s\n", fn);
+			return 1;
+		}
+		size = unpack32_((FLAC__byte*)buf+4, fm->type);
+		printf("block:[%c%c%c%c] size=%08x=(%10u)", buf[0], buf[1], buf[2], buf[3], size, size);
+		if(i == 0)
+			printf(" type:[%c%c%c%c]", buf[8], buf[9], buf[10], buf[11]);
+		else if(fm->type == FOREIGN_BLOCK_TYPE__AIFF && i == fm->audio_block)
+			printf(" offset size=%08x=(%10u)", fm->ssnd_offset_size, fm->ssnd_offset_size);
+		else if(fm->type == FOREIGN_BLOCK_TYPE__RIFF && i == 1 && !memcmp(buf, "ds64", 4)) {
+			if(fread(buf+8, 1, 36-8, f) != 36-8) {
+				flac_fprintf(stderr, "ERROR reading %s\n", fn);
+				return 1;
+			}
+			printf("\n    RIFF size=%016" PRIx64 "=(%20" PRIu64 ")", unpack64le_((FLAC__byte*)buf+8), unpack64le_((FLAC__byte*)buf+8));
+			printf("\n    data size=%016" PRIx64 "=(%20" PRIu64 ")", unpack64le_((FLAC__byte*)buf+16), unpack64le_((FLAC__byte*)buf+16));
+			printf("\n    sample count=%016" PRIx64 "=(%20" PRIu64 ")", unpack64le_((FLAC__byte*)buf+24), unpack64le_((FLAC__byte*)buf+24));
+			printf("\n    table size=%08x=(%10u)", unpack32le_((FLAC__byte*)buf+32), unpack32le_((FLAC__byte*)buf+32));
+		}
+		printf("\n");
+	}
+	fclose(f);
+	flac__foreign_metadata_delete(fm);
+	return 0;
+}

extern/flac/src/flac/local_string_utils.c

@@ -0,0 +1,109 @@
+/* flac - Command-line FLAC encoder/decoder
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <string.h>
+
+#include "utils.h"
+#include "local_string_utils.h"
+
+/*	$OpenBSD: strlcpy.c,v 1.8 2003/06/17 21:56:24 millert Exp $
+ *
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ *
+ * Copy src to string dst of size siz.  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz == 0).
+ * Returns strlen(src); if retval >= siz, truncation occurred.
+ */
+size_t
+flac__strlcpy(char *dst, const char *src, size_t siz)
+{
+	register char *d = dst;
+	register const char *s = src;
+	register size_t n = siz;
+
+	/* Copy as many bytes as will fit */
+	if (n != 0 && --n != 0) {
+		do {
+			if ((*d++ = *s++) == 0)
+				break;
+		} while (--n != 0);
+	}
+
+	/* Not enough room in dst, add NUL and traverse rest of src */
+	if (n == 0) {
+		if (siz != 0)
+			*d = '\0';		/* NUL-terminate dst */
+		while (*s++)
+			;
+	}
+
+	return(s - src - 1);	/* count does not include NUL */
+}
+
+/*	$OpenBSD: strlcat.c,v 1.11 2003/06/17 21:56:24 millert Exp $
+ *
+ * Copyright (c) 1998 Todd C. Miller <Todd.Miller@courtesan.com>
+ *
+ * Permission to use, copy, modify, and distribute this software for any
+ * purpose with or without fee is hereby granted, provided that the above
+ * copyright notice and this permission notice appear in all copies.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+ * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
+ * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+ * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+ * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
+ * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+ * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+ *
+ *
+ * Appends src to string dst of size siz (unlike strncat, siz is the
+ * full size of dst, not space left).  At most siz-1 characters
+ * will be copied.  Always NUL terminates (unless siz <= strlen(dst)).
+ * Returns strlen(src) + MIN(siz, strlen(initial dst)).
+ * If retval >= siz, truncation occurred.
+ */
+size_t
+flac__strlcat(char *dst, const char *src, size_t siz)
+{
+	register char *d = dst;
+	register const char *s = src;
+	register size_t n = siz;
+	size_t dlen;
+
+	/* Find the end of dst and adjust bytes left but don't go past end */
+	while (n-- != 0 && *d != '\0')
+		d++;
+	dlen = d - dst;
+	n = siz - dlen;
+
+	if (n == 0)
+		return(dlen + strlen(s));
+	while (*s != '\0') {
+		if (n != 1) {
+			*d++ = *s;
+			n--;
+		}
+		s++;
+	}
+	*d = '\0';
+
+	return(dlen + (s - src));	/* count does not include NUL */
+}

extern/flac/src/flac/local_string_utils.h

@@ -0,0 +1,28 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef flac__local_string_utils_h
+#define flac__local_string_utils_h
+
+#include <stdlib.h> /* for size_t */
+
+size_t flac__strlcpy(char *dst, const char *src, size_t siz);
+size_t flac__strlcat(char *dst, const char *src, size_t siz);
+
+#endif

extern/flac/src/flac/utils.c

@@ -0,0 +1,493 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <math.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "utils.h"
+#include "FLAC/assert.h"
+#include "FLAC/metadata.h"
+#include "share/compat.h"
+#ifndef _WIN32
+#ifndef _XOPEN_SOURCE
+#define _XOPEN_SOURCE
+#endif
+#include <wchar.h>
+#ifdef HAVE_TERMIOS_H
+# include <termios.h>
+#endif
+#ifdef HAVE_SYS_IOCTL_H
+# include <sys/ioctl.h>
+#endif
+#endif
+
+const char *CHANNEL_MASK_TAG = "WAVEFORMATEXTENSIBLE_CHANNEL_MASK";
+
+int flac__utils_verbosity_ = 2;
+
+static FLAC__bool local__parse_uint64_(const char *s, FLAC__uint64 *value)
+{
+	FLAC__uint64 ret = 0;
+	char c;
+
+	if(*s == '\0')
+		return false;
+
+	while('\0' != (c = *s++))
+		if(c >= '0' && c <= '9') {
+			if(ret > UINT64_MAX / 10) /* check for overflow */
+				return false;
+			else if(ret == UINT64_MAX / 10) {
+				FLAC__uint64 tmp = ret;
+				ret = ret * 10 + (c - '0');
+				if(ret < tmp)
+					return false;
+			}
+			else
+				ret = ret * 10 + (c - '0');
+		}
+		else
+			return false;
+
+	*value = ret;
+	return true;
+}
+
+static FLAC__bool local__parse_timecode_(const char *s, double *value)
+{
+	double ret;
+	uint32_t i;
+	char c, *endptr;
+
+	/* parse [0-9][0-9]*: */
+	c = *s++;
+	if(c >= '0' && c <= '9')
+		i = (c - '0');
+	else
+		return false;
+	while(':' != (c = *s++)) {
+		if(c >= '0' && c <= '9')
+			i = i * 10 + (c - '0');
+		else
+			return false;
+	}
+	ret = (double)i * 60.;
+
+	/* parse [0-9]*[.,]?[0-9]* i.e. a sign-less rational number (. or , OK for fractional seconds, to support different locales) */
+	if(strspn(s, "1234567890.,") != strlen(s))
+		return false;
+	ret += strtod(s, &endptr);
+	if (endptr == s || *endptr)
+		return false;
+
+	*value = ret;
+	return true;
+}
+
+static FLAC__bool local__parse_cue_(const char *s, const char *end, uint32_t *track, uint32_t *indx)
+{
+	FLAC__bool got_track = false, got_index = false;
+	uint32_t t = 0, i = 0;
+	char c;
+
+	while(end? s < end : *s != '\0') {
+		c = *s++;
+		if(c >= '0' && c <= '9') {
+			t = t * 10 + (c - '0');
+			got_track = true;
+		}
+		else if(c == '.')
+			break;
+		else
+			return false;
+	}
+	while(end? s < end : *s != '\0') {
+		c = *s++;
+		if(c >= '0' && c <= '9') {
+			i = i * 10 + (c - '0');
+			got_index = true;
+		}
+		else
+			return false;
+	}
+	*track = t;
+	*indx = i;
+	return got_track && got_index;
+}
+
+/*
+ * this only works with sorted cuesheets (the spec strongly recommends but
+ * does not require sorted cuesheets).  but if it's not sorted, picking a
+ * nearest cue point has no significance.
+ */
+static FLAC__uint64 local__find_closest_cue_(const FLAC__StreamMetadata_CueSheet *cuesheet, uint32_t track, uint32_t indx, FLAC__uint64 total_samples, FLAC__bool look_forward)
+{
+	int t, i;
+	if(look_forward) {
+		for(t = 0; t < (int)cuesheet->num_tracks; t++)
+			for(i = 0; i < (int)cuesheet->tracks[t].num_indices; i++)
+				if(cuesheet->tracks[t].number > track || (cuesheet->tracks[t].number == track && cuesheet->tracks[t].indices[i].number >= indx))
+					return cuesheet->tracks[t].offset + cuesheet->tracks[t].indices[i].offset;
+		return total_samples;
+	}
+	else {
+		for(t = (int)cuesheet->num_tracks - 1; t >= 0; t--)
+			for(i = (int)cuesheet->tracks[t].num_indices - 1; i >= 0; i--)
+				if(cuesheet->tracks[t].number < track || (cuesheet->tracks[t].number == track && cuesheet->tracks[t].indices[i].number <= indx))
+					return cuesheet->tracks[t].offset + cuesheet->tracks[t].indices[i].offset;
+		return 0;
+	}
+}
+
+void flac__utils_printf(FILE *stream, int level, const char *format, ...)
+{
+	if(flac__utils_verbosity_ >= level) {
+		va_list args;
+
+		FLAC__ASSERT(0 != format);
+
+		va_start(args, format);
+
+		(void) flac_vfprintf(stream, format, args);
+
+		va_end(args);
+
+#ifdef _MSC_VER
+		if(stream == stderr)
+			fflush(stream); /* for some reason stderr is buffered in at least some if not all MSC libs */
+#endif
+	}
+}
+
+/* variables and functions for console status output */
+static FLAC__bool is_name_printed;
+static int stats_char_count = 0;
+static int console_width;
+static int console_chars_left;
+
+int get_console_width(void)
+{
+	int width = 0;
+#if defined _WIN32
+	width = win_get_console_width();
+#elif defined __EMX__
+	int s[2];
+	_scrsize (s);
+	width = s[0];
+#elif defined TIOCGWINSZ
+	struct winsize w;
+	if (ioctl(STDOUT_FILENO, TIOCGWINSZ, &w) != -1)
+		width = w.ws_col;
+#endif
+	if (width <= 0)
+		width = 80;
+	return width;
+}
+
+size_t strlen_console(const char *text)
+{
+#ifdef _WIN32
+	return strlen_utf8(text);
+#elif defined(__DJGPP__) /* workaround for DJGPP missing wcswidth() */
+	return strlen(text);
+#else
+	size_t len;
+	wchar_t *wtmp;
+
+	len = strlen(text)+1;
+	wtmp = (wchar_t *)malloc(len*sizeof(wchar_t));
+	if (wtmp == NULL) return len-1;
+	mbstowcs(wtmp, text, len);
+	len = wcswidth(wtmp, len);
+	free(wtmp);
+
+	return len;
+#endif
+}
+
+void stats_new_line(void)
+{
+	is_name_printed = false;
+	stats_char_count = 0;
+}
+
+void stats_clear(void)
+{
+	while (stats_char_count > 0 && stats_char_count--)
+		flac_fprintf(stderr, "\b");
+}
+
+void stats_print_name(int level, const char *name)
+{
+	stats_print_name_and_stream_number(level, name, -1);
+}
+
+void stats_print_name_and_stream_number(int level, const char *name, int stream_number)
+{
+	int len;
+
+	if (flac__utils_verbosity_ >= level) {
+		stats_clear();
+		if(is_name_printed) return;
+
+		console_width = get_console_width();
+		len = strlen_console(name)+2;
+		if(stream_number >= 0)
+			len += 10 + floor(log10(stream_number));
+		console_chars_left = console_width  - (len % console_width);
+		if(stream_number < 0)
+			flac_fprintf(stderr, "%s: ", name);
+		else
+			flac_fprintf(stderr, "%s, stream %d: ", name, stream_number);
+		is_name_printed = true;
+	}
+}
+
+void stats_print_info(int level, const char *format, ...)
+{
+	char tmp[80];
+	int len, clear_len;
+
+	if (flac__utils_verbosity_ >= level) {
+		va_list args;
+		va_start(args, format);
+		len = flac_vsnprintf(tmp, sizeof(tmp), format, args);
+		va_end(args);
+		stats_clear();
+		if (len >= console_chars_left) {
+			clear_len = console_chars_left;
+			while (clear_len > 0 && clear_len--) flac_fprintf(stderr, " ");
+			flac_fprintf(stderr, "\n");
+			console_chars_left = console_width;
+		}
+		stats_char_count = flac_fprintf(stderr, "%s", tmp);
+		fflush(stderr);
+	}
+}
+
+void flac__utils_printf_clear_stats(FILE *stream, int level, const char *format, ...)
+{
+	if(flac__utils_verbosity_ >= level) {
+		va_list args;
+
+		FLAC__ASSERT(0 != format);
+
+		if(is_name_printed || stats_char_count > 0) {
+			flac_fprintf(stderr,"\r");
+			stats_char_count = 0;
+			is_name_printed = false;
+		}
+
+		va_start(args, format);
+
+		(void) flac_vfprintf(stream, format, args);
+
+		va_end(args);
+
+#ifdef _MSC_VER
+		if(stream == stderr)
+			fflush(stream); /* for some reason stderr is buffered in at least some if not all MSC libs */
+#endif
+	}
+}
+
+#ifdef FLAC__VALGRIND_TESTING
+size_t flac__utils_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream)
+{
+	size_t ret = fwrite(ptr, size, nmemb, stream);
+	if(!ferror(stream))
+		fflush(stream);
+	return ret;
+}
+#endif
+
+FLAC__bool flac__utils_parse_skip_until_specification(const char *s, utils__SkipUntilSpecification *spec)
+{
+	FLAC__uint64 val;
+	FLAC__bool is_negative = false;
+
+	FLAC__ASSERT(0 != spec);
+
+	spec->is_relative = false;
+	spec->value_is_samples = true;
+	spec->value.samples = 0;
+
+	if(0 != s) {
+		if(s[0] == '-') {
+			is_negative = true;
+			spec->is_relative = true;
+			s++;
+		}
+		else if(s[0] == '+') {
+			spec->is_relative = true;
+			s++;
+		}
+
+		if(local__parse_uint64_(s, &val)) {
+			spec->value_is_samples = true;
+			if(val > INT64_MAX)
+				return false;
+			spec->value.samples = (FLAC__int64)val;
+			if(is_negative)
+				spec->value.samples = -(spec->value.samples);
+		}
+		else {
+			double d;
+			if(!local__parse_timecode_(s, &d))
+				return false;
+			spec->value_is_samples = false;
+			spec->value.seconds = d;
+			if(is_negative)
+				spec->value.seconds = -(spec->value.seconds);
+		}
+	}
+
+	return true;
+}
+
+FLAC__bool flac__utils_check_empty_skip_until_specification(utils__SkipUntilSpecification *spec)
+{
+	FLAC__ASSERT(0 != spec);
+	if(spec->value_is_samples) {
+		if(spec->value.samples == 0)
+			return true;
+		else
+			return false;
+	}
+	else {
+		if(spec->value.seconds == 0.0)
+			return true;
+		else
+			return false;
+	}
+}
+
+FLAC__bool flac__utils_canonicalize_skip_until_specification(utils__SkipUntilSpecification *spec, uint32_t sample_rate)
+{
+	FLAC__ASSERT(0 != spec);
+	if(!spec->value_is_samples) {
+		double samples = spec->value.seconds * (double)sample_rate;
+		if(samples >= (double)INT64_MAX || samples <= (double)INT64_MIN)
+			return false;
+		spec->value.samples = (FLAC__int64)(samples);
+		spec->value_is_samples = true;
+	}
+	return true;
+}
+
+FLAC__bool flac__utils_parse_cue_specification(const char *s, utils__CueSpecification *spec)
+{
+	const char *start = s, *end = 0;
+
+	FLAC__ASSERT(0 != spec);
+
+	spec->has_start_point = spec->has_end_point = false;
+
+	s = strchr(s, '-');
+
+	if(0 != s) {
+		if(s == start)
+			start = 0;
+		end = s+1;
+		if(*end == '\0')
+			end = 0;
+	}
+
+	if(start) {
+		if(!local__parse_cue_(start, s, &spec->start_track, &spec->start_index))
+			return false;
+		spec->has_start_point = true;
+	}
+
+	if(end) {
+		if(!local__parse_cue_(end, 0, &spec->end_track, &spec->end_index))
+			return false;
+		spec->has_end_point = true;
+	}
+
+	return true;
+}
+
+void flac__utils_canonicalize_cue_specification(const utils__CueSpecification *cue_spec, const FLAC__StreamMetadata_CueSheet *cuesheet, FLAC__uint64 total_samples, utils__SkipUntilSpecification *skip_spec, utils__SkipUntilSpecification *until_spec)
+{
+	FLAC__ASSERT(0 != cue_spec);
+	FLAC__ASSERT(0 != cuesheet);
+	FLAC__ASSERT(0 != total_samples);
+	FLAC__ASSERT(0 != skip_spec);
+	FLAC__ASSERT(0 != until_spec);
+
+	skip_spec->is_relative = false;
+	skip_spec->value_is_samples = true;
+
+	until_spec->is_relative = false;
+	until_spec->value_is_samples = true;
+
+	if(cue_spec->has_start_point)
+		skip_spec->value.samples = local__find_closest_cue_(cuesheet, cue_spec->start_track, cue_spec->start_index, total_samples, /*look_forward=*/false);
+	else
+		skip_spec->value.samples = 0;
+
+	if(cue_spec->has_end_point)
+		until_spec->value.samples = local__find_closest_cue_(cuesheet, cue_spec->end_track, cue_spec->end_index, total_samples, /*look_forward=*/true);
+	else
+		until_spec->value.samples = total_samples;
+}
+
+FLAC__bool flac__utils_set_channel_mask_tag(FLAC__StreamMetadata *object, FLAC__uint32 channel_mask)
+{
+	FLAC__StreamMetadata_VorbisComment_Entry entry = { 0, 0 };
+	char tag[128];
+
+	FLAC__ASSERT(object);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+	FLAC__ASSERT(strlen(CHANNEL_MASK_TAG)+1+2+16+1 <= sizeof(tag)); /* +1 for =, +2 for 0x, +16 for digits, +1 for NUL */
+	entry.entry = (FLAC__byte*)tag;
+	if((entry.length = flac_snprintf(tag, sizeof(tag), "%s=0x%04X", CHANNEL_MASK_TAG, (uint32_t)channel_mask)) >= sizeof(tag))
+		return false;
+	if(!FLAC__metadata_object_vorbiscomment_replace_comment(object, entry, /*all=*/true, /*copy=*/true))
+		return false;
+	return true;
+}
+
+FLAC__bool flac__utils_get_channel_mask_tag(const FLAC__StreamMetadata *object, FLAC__uint32 *channel_mask)
+{
+	int offset;
+	uint32_t val;
+	char *p;
+	FLAC__ASSERT(object);
+	FLAC__ASSERT(object->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+	if(0 > (offset = FLAC__metadata_object_vorbiscomment_find_entry_from(object, /*offset=*/0, CHANNEL_MASK_TAG)))
+		return false;
+	if(object->data.vorbis_comment.comments[offset].length < strlen(CHANNEL_MASK_TAG)+4)
+		return false;
+	if(0 == (p = strchr((const char *)object->data.vorbis_comment.comments[offset].entry, '='))) /* should never happen, but just in case */
+		return false;
+	if(FLAC__STRNCASECMP(p, "=0x", 3))
+		return false;
+	if(sscanf(p+3, "%x", &val) != 1)
+		return false;
+	*channel_mask = val;
+	return true;
+}

extern/flac/src/flac/utils.h

@@ -0,0 +1,80 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef flac__utils_h
+#define flac__utils_h
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "FLAC/ordinals.h"
+#include "FLAC/format.h" /* for FLAC__StreamMetadata_CueSheet */
+#include <stdio.h> /* for FILE */
+
+typedef enum { FORMAT_RAW, FORMAT_WAVE, FORMAT_WAVE64, FORMAT_RF64, FORMAT_AIFF, FORMAT_AIFF_C, FORMAT_FLAC, FORMAT_OGGFLAC } FileFormat;
+static const char * const FileFormatString[] = { " raw", " WAVE", " Wave64", "n RF64", "n AIFF", "n AIFF-C", " FLAC", "n Ogg FLAC" };
+
+typedef enum { SUBFORMAT_UNSPECIFIED = 0, SUBFORMAT_WAVE_PCM, SUBFORMAT_WAVE_EXTENSIBLE, SUBFORMAT_AIFF_C_NONE, SUBFORMAT_AIFF_C_SOWT } FileSubFormat;
+
+
+typedef struct {
+	FLAC__bool is_relative; /* i.e. specification string started with + or - */
+	FLAC__bool value_is_samples;
+	union {
+		double seconds;
+		FLAC__int64 samples;
+	} value;
+} utils__SkipUntilSpecification;
+
+typedef struct {
+	FLAC__bool has_start_point, has_end_point;
+	unsigned start_track, start_index;
+	unsigned end_track, end_index;
+} utils__CueSpecification;
+
+#ifdef FLAC__VALGRIND_TESTING
+size_t flac__utils_fwrite(const void *ptr, size_t size, size_t nmemb, FILE *stream);
+#else
+#define flac__utils_fwrite fwrite
+#endif
+
+extern int flac__utils_verbosity_;
+void flac__utils_printf(FILE *stream, int level, const char *format, ...);
+
+int get_console_width(void);
+size_t strlen_console(const char *text);
+void stats_new_line(void);
+void stats_clear(void);
+void stats_print_name(int level, const char *name);
+void stats_print_name_and_stream_number(int level, const char *name, int stream_number);
+void stats_print_info(int level, const char *format, ...);
+void flac__utils_printf_clear_stats(FILE *stream, int level, const char *format, ...);
+
+FLAC__bool flac__utils_check_empty_skip_until_specification(utils__SkipUntilSpecification *spec);
+FLAC__bool flac__utils_parse_skip_until_specification(const char *s, utils__SkipUntilSpecification *spec);
+FLAC__bool flac__utils_canonicalize_skip_until_specification(utils__SkipUntilSpecification *spec, uint32_t sample_rate);
+
+FLAC__bool flac__utils_parse_cue_specification(const char *s, utils__CueSpecification *spec);
+void flac__utils_canonicalize_cue_specification(const utils__CueSpecification *cue_spec, const FLAC__StreamMetadata_CueSheet *cuesheet, FLAC__uint64 total_samples, utils__SkipUntilSpecification *skip_spec, utils__SkipUntilSpecification *until_spec);
+
+FLAC__bool flac__utils_set_channel_mask_tag(FLAC__StreamMetadata *object, FLAC__uint32 channel_mask);
+FLAC__bool flac__utils_get_channel_mask_tag(const FLAC__StreamMetadata *object, FLAC__uint32 *channel_mask);
+
+#endif

extern/flac/src/flac/version.rc

@@ -0,0 +1,38 @@
+#include <winver.h>
+#include "config.h"
+
+#if (defined GIT_COMMIT_HASH && defined GIT_COMMIT_DATE)
+# ifdef GIT_COMMIT_TAG
+#  define VERSIONSTRING GIT_COMMIT_TAG
+# else
+#  define VERSIONSTRING "git-" GIT_COMMIT_HASH
+# endif
+#else
+# define VERSIONSTRING PACKAGE_VERSION
+#endif
+
+#define xstr(s) str(s)
+#define str(s) #s
+
+VS_VERSION_INFO VERSIONINFO
+FILEFLAGSMASK  VS_FFI_FILEFLAGSMASK
+FILEFLAGS      0
+FILEOS         VOS__WINDOWS32
+FILETYPE       VFT_DLL
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "FileDescription", "flac command line tool for Windows"
+            VALUE "ProductName", "Free Lossless Audio Codec"
+            VALUE "ProductVersion", VERSIONSTRING
+            VALUE "CompanyName", "Xiph.Org"
+            VALUE "LegalCopyright", "2000-2009 Josh Coalson, 2011-2025 Xiph.Org Foundation"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
+END

extern/flac/src/flac/vorbiscomment.c

@@ -0,0 +1,255 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "vorbiscomment.h"
+#include "FLAC/assert.h"
+#include "FLAC/metadata.h"
+#include "share/grabbag.h" /* for grabbag__file_get_filesize() */
+#include "share/utf8.h"
+#include <ctype.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include "share/compat.h"
+
+
+/*
+ * This struct and the following 4 static functions are copied from
+ * ../metaflac/.  Maybe someday there will be a convenience
+ * library for Vorbis comment parsing.
+ */
+typedef struct {
+	char *field; /* the whole field as passed on the command line, i.e. "NAME=VALUE" */
+	char *field_name;
+	/* according to the vorbis spec, field values can contain \0 so simple C strings are not enough here */
+	uint32_t field_value_length;
+	char *field_value;
+	FLAC__bool field_value_from_file; /* true if field_value holds a filename for the value, false for plain value */
+} Argument_VcField;
+
+static void die(const char *message)
+{
+	FLAC__ASSERT(0 != message);
+	fprintf(stderr, "ERROR: %s\n", message);
+	exit(1);
+}
+
+static char *local_strdup(const char *source)
+{
+	char *ret;
+	FLAC__ASSERT(0 != source);
+	if(0 == (ret = strdup(source)))
+		die("out of memory during strdup()");
+	return ret;
+}
+
+static FLAC__bool parse_vorbis_comment_field(const char *field_ref, char **field, char **name, char **value, uint32_t *length, const char **violation)
+{
+	static const char * const violations[] = {
+		"field name contains invalid character",
+		"field contains no '=' character"
+	};
+
+	char *p, *q, *s;
+
+	if(0 != field)
+		*field = local_strdup(field_ref);
+
+	s = local_strdup(field_ref);
+
+	if(0 == (p = strchr(s, '='))) {
+		free(s);
+		*violation = violations[1];
+		return false;
+	}
+	*p++ = '\0';
+
+	for(q = s; *q; q++) {
+		if(*q < 0x20 || *q > 0x7d || *q == 0x3d) {
+			free(s);
+			*violation = violations[0];
+			return false;
+		}
+	}
+
+	*name = local_strdup(s);
+	*value = local_strdup(p);
+	*length = strlen(p);
+
+	free(s);
+	return true;
+}
+
+/* slight modification: no 'filename' arg, and errors are passed back in 'violation' instead of printed to stderr */
+static FLAC__bool set_vc_field(FLAC__StreamMetadata *block, const Argument_VcField *field, FLAC__bool *needs_write, FLAC__bool raw, const char **violation)
+{
+	FLAC__StreamMetadata_VorbisComment_Entry entry;
+	char *converted = NULL;
+
+	FLAC__ASSERT(0 != block);
+	FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+	FLAC__ASSERT(0 != field);
+	FLAC__ASSERT(0 != needs_write);
+
+	if(field->field_value_from_file) {
+		/* read the file into 'data' */
+		FILE *f = 0;
+		char *data = 0;
+		const FLAC__off_t size = grabbag__file_get_filesize(field->field_value);
+		if(size < 0) {
+			*violation = "can't open file for tag value";
+			return false;
+		}
+		if(size >= 0x100000) { /* magic arbitrary limit, actual format limit is near 16MB */
+			*violation = "file for tag value is too large";
+			return false;
+		}
+		if(0 == (data = malloc(size+1)))
+			die("out of memory allocating tag value");
+		data[size] = '\0';
+		if(0 == (f = flac_fopen(field->field_value, "rb")) || fread(data, 1, size, f) != (size_t)size) {
+			free(data);
+			if(f)
+				fclose(f);
+			*violation = "error while reading file for tag value";
+			return false;
+		}
+		fclose(f);
+		if(strlen(data) != (size_t)size) {
+			free(data);
+			*violation = "file for tag value has embedded NULs";
+			return false;
+		}
+
+		/* move 'data' into 'converted', converting to UTF-8 if necessary */
+		if(raw) {
+			converted = data;
+		}
+		else if(utf8_encode(data, &converted) >= 0) {
+			free(data);
+		}
+		else {
+			free(data);
+			*violation = "error converting file contents to UTF-8 for tag value";
+			return false;
+		}
+
+		/* create and entry and append it */
+		if(!FLAC__metadata_object_vorbiscomment_entry_from_name_value_pair(&entry, field->field_name, converted)) {
+			free(converted);
+			*violation = "file for tag value is not valid UTF-8";
+			return false;
+		}
+		free(converted);
+		if(!FLAC__metadata_object_vorbiscomment_append_comment(block, entry, /*copy=*/false)) {
+			free(entry.entry);
+			*violation = "memory allocation failure";
+			return false;
+		}
+
+		*needs_write = true;
+		return true;
+	}
+	else {
+		FLAC__bool needs_free = false;
+#ifdef _WIN32 /* everything in UTF-8 already. Must not alter */
+		entry.entry = (FLAC__byte *)field->field;
+#else
+		if(raw) {
+			entry.entry = (FLAC__byte *)field->field;
+		}
+		else if(utf8_encode(field->field, &converted) >= 0) {
+			entry.entry = (FLAC__byte *)converted;
+			needs_free = true;
+		}
+		else {
+			*violation = "error converting comment to UTF-8";
+			return false;
+		}
+#endif
+		entry.length = strlen((const char *)entry.entry);
+		if(!FLAC__format_vorbiscomment_entry_is_legal(entry.entry, entry.length)) {
+			if(needs_free)
+				free(converted);
+			/*
+			 * our previous parsing has already established that the field
+			 * name is OK, so it must be the field value
+			 */
+			*violation = "tag value is not valid UTF-8";
+			return false;
+		}
+
+		if(!FLAC__metadata_object_vorbiscomment_append_comment(block, entry, /*copy=*/true)) {
+			if(needs_free)
+				free(converted);
+			*violation = "memory allocation failure";
+			return false;
+		}
+
+		*needs_write = true;
+		if(needs_free)
+			free(converted);
+		return true;
+	}
+}
+
+/*
+ * The rest of the code is novel
+ */
+
+static void free_field(Argument_VcField *obj)
+{
+	if(0 != obj->field)
+		free(obj->field);
+	if(0 != obj->field_name)
+		free(obj->field_name);
+	if(0 != obj->field_value)
+		free(obj->field_value);
+}
+
+FLAC__bool flac__vorbiscomment_add(FLAC__StreamMetadata *block, const char *comment, FLAC__bool value_from_file, FLAC__bool raw, const char **violation)
+{
+	Argument_VcField parsed;
+	FLAC__bool dummy;
+
+	FLAC__ASSERT(0 != block);
+	FLAC__ASSERT(block->type == FLAC__METADATA_TYPE_VORBIS_COMMENT);
+	FLAC__ASSERT(0 != comment);
+
+	memset(&parsed, 0, sizeof(parsed));
+
+	parsed.field_value_from_file = value_from_file;
+	if(!parse_vorbis_comment_field(comment, &(parsed.field), &(parsed.field_name), &(parsed.field_value), &(parsed.field_value_length), violation)) {
+		free_field(&parsed);
+		return false;
+	}
+
+	if(parsed.field_value_length > 0 && !set_vc_field(block, &parsed, &dummy, raw, violation)) {
+		free_field(&parsed);
+		return false;
+	}
+	else {
+		free_field(&parsed);
+		return true;
+	}
+}

extern/flac/src/flac/vorbiscomment.h

@@ -0,0 +1,27 @@
+/* flac - Command-line FLAC encoder/decoder
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ */
+
+#ifndef flac__vorbiscomment_h
+#define flac__vorbiscomment_h
+
+#include "FLAC/metadata.h"
+
+FLAC__bool flac__vorbiscomment_add(FLAC__StreamMetadata *block, const char *comment, FLAC__bool value_from_file, FLAC__bool raw, const char **violation);
+
+#endif

extern/flac/src/libFLAC++/CMakeLists.txt

@@ -0,0 +1,41 @@
+add_library(FLAC++
+    metadata.cpp
+    stream_decoder.cpp
+    stream_encoder.cpp
+	version.rc)
+set_property(TARGET FLAC++ PROPERTY PROJECT_LABEL "libFLAC++")
+target_compile_definitions(FLAC++
+    PRIVATE $<$<BOOL:${BUILD_SHARED_LIBS}>:FLACPP_API_EXPORTS>
+    PUBLIC $<$<NOT:$<BOOL:${BUILD_SHARED_LIBS}>>:FLAC__NO_DLL>)
+if(NOT WIN32)
+    target_compile_definitions(FLAC++ PRIVATE $<$<BOOL:${BUILD_SHARED_LIBS}>:FLAC__USE_VISIBILITY_ATTR>)
+endif()
+target_include_directories(FLAC++ INTERFACE
+    "$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>"
+    "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
+target_link_libraries(FLAC++ PUBLIC FLAC)
+if(BUILD_SHARED_LIBS)
+    set_target_properties(FLAC++ PROPERTIES
+        VERSION 11.0.0
+        SOVERSION 11)
+    if(NOT WIN32)
+        set_target_properties(FLAC++ PROPERTIES CXX_VISIBILITY_PRESET hidden)
+    endif()
+endif()
+
+add_library(FLAC::FLAC++ ALIAS FLAC++)
+
+install(TARGETS FLAC++ EXPORT targets
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}/"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}/"
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}/")
+
+if(INSTALL_PKGCONFIG_MODULES)
+    set(prefix "${CMAKE_INSTALL_PREFIX}")
+    set(exec_prefix "${CMAKE_INSTALL_PREFIX}")
+    set(libdir "${CMAKE_INSTALL_FULL_LIBDIR}")
+    set(includedir "${CMAKE_INSTALL_FULL_INCLUDEDIR}")
+    configure_file(flac++.pc.in flac++.pc @ONLY)
+    install(FILES "${CMAKE_CURRENT_BINARY_DIR}/flac++.pc"
+        DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
+endif()

extern/flac/src/libFLAC++/Makefile.am

@@ -0,0 +1,68 @@
+#  libFLAC++ - Free Lossless Audio Codec library
+#  Copyright (C) 2002-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  - Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#
+#  - Redistributions in binary form must reproduce the above copyright
+#  notice, this list of conditions and the following disclaimer in the
+#  documentation and/or other materials provided with the distribution.
+#
+#  - Neither the name of the Xiph.org Foundation nor the names of its
+#  contributors may be used to endorse or promote products derived from
+#  this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+lib_LTLIBRARIES = libFLAC++.la
+noinst_LTLIBRARIES = libFLAC++-static.la
+
+m4datadir = $(datadir)/aclocal
+m4data_DATA = libFLAC++.m4
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = flac++.pc
+AM_CPPFLAGS = -I$(top_builddir) -I$(srcdir)/include -I$(top_srcdir)/include
+EXTRA_DIST = \
+	CMakeLists.txt \
+	flac++.pc.in \
+	libFLAC++.m4 \
+	version.rc
+
+libFLAC___sources = \
+	metadata.cpp \
+	stream_decoder.cpp \
+	stream_encoder.cpp
+
+if OS_IS_WINDOWS
+if HAVE_WINDRES
+libFLAC___la_DEPENDENCIES = version.o
+windows_resource_link = -Wl,version.o
+endif
+endif
+
+# see 'http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning' for numbering convention
+libFLAC___la_LDFLAGS = $(AM_LDFLAGS) -no-undefined -version-info 11:0:0 $(windows_resource_link)
+libFLAC___la_LIBADD = ../libFLAC/libFLAC.la
+libFLAC___la_SOURCES = $(libFLAC___sources)
+
+libFLAC___static_la_SOURCES = $(libFLAC___sources)
+libFLAC___static_la_LIBADD = ../libFLAC/libFLAC-static.la
+
+.rc.o:
+	$(RC) $(AM_CPPFLAGS) $< $@

extern/flac/src/libFLAC++/Makefile.in

@@ -0,0 +1,838 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  libFLAC++ - Free Lossless Audio Codec library
+#  Copyright (C) 2002-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  - Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#
+#  - Redistributions in binary form must reproduce the above copyright
+#  notice, this list of conditions and the following disclaimer in the
+#  documentation and/or other materials provided with the distribution.
+#
+#  - Neither the name of the Xiph.org Foundation nor the names of its
+#  contributors may be used to endorse or promote products derived from
+#  this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+@HAVE_WINDRES_FALSE@libFLAC___la_DEPENDENCIES = ../libFLAC/libFLAC.la
+@OS_IS_WINDOWS_FALSE@libFLAC___la_DEPENDENCIES =  \
+@OS_IS_WINDOWS_FALSE@	../libFLAC/libFLAC.la
+subdir = src/libFLAC++
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/add_cflags.m4 \
+	$(top_srcdir)/m4/add_cxxflags.m4 \
+	$(top_srcdir)/m4/ax_add_fortify_source.m4 \
+	$(top_srcdir)/m4/ax_check_compile_flag.m4 \
+	$(top_srcdir)/m4/ax_check_enable_debug.m4 \
+	$(top_srcdir)/m4/ax_pthread.m4 $(top_srcdir)/m4/bswap.m4 \
+	$(top_srcdir)/m4/clang.m4 $(top_srcdir)/m4/codeset.m4 \
+	$(top_srcdir)/m4/gcc_version.m4 $(top_srcdir)/m4/iconv.m4 \
+	$(top_srcdir)/m4/lib-ld.m4 $(top_srcdir)/m4/lib-link.m4 \
+	$(top_srcdir)/m4/lib-prefix.m4 $(top_srcdir)/m4/libtool.m4 \
+	$(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \
+	$(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \
+	$(top_srcdir)/m4/ogg.m4 $(top_srcdir)/m4/really_gcc.m4 \
+	$(top_srcdir)/m4/stack_protect.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES = flac++.pc
+CONFIG_CLEAN_VPATH_FILES =
+am__vpath_adj_setup = srcdirstrip=`echo "$(srcdir)" | sed 's|.|.|g'`;
+am__vpath_adj = case $$p in \
+    $(srcdir)/*) f=`echo "$$p" | sed "s|^$$srcdirstrip/||"`;; \
+    *) f=$$p;; \
+  esac;
+am__strip_dir = f=`echo $$p | sed -e 's|^.*/||'`;
+am__install_max = 40
+am__nobase_strip_setup = \
+  srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*|]/\\\\&/g'`
+am__nobase_strip = \
+  for p in $$list; do echo "$$p"; done | sed -e "s|$$srcdirstrip/||"
+am__nobase_list = $(am__nobase_strip_setup); \
+  for p in $$list; do echo "$$p $$p"; done | \
+  sed "s| $$srcdirstrip/| |;"' / .*\//!s/ .*/ ./; s,\( .*\)/[^/]*$$,\1,' | \
+  $(AWK) 'BEGIN { files["."] = "" } { files[$$2] = files[$$2] " " $$1; \
+    if (++n[$$2] == $(am__install_max)) \
+      { print $$2, files[$$2]; n[$$2] = 0; files[$$2] = "" } } \
+    END { for (dir in files) print dir, files[dir] }'
+am__base_list = \
+  sed '$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;$$!N;s/\n/ /g' | \
+  sed '$$!N;$$!N;$$!N;$$!N;s/\n/ /g'
+am__uninstall_files_from_dir = { \
+  test -z "$$files" \
+    || { test ! -d "$$dir" && test ! -f "$$dir" && test ! -r "$$dir"; } \
+    || { echo " ( cd '$$dir' && rm -f" $$files ")"; \
+         $(am__cd) "$$dir" && rm -f $$files; }; \
+  }
+am__installdirs = "$(DESTDIR)$(libdir)" "$(DESTDIR)$(m4datadir)" \
+	"$(DESTDIR)$(pkgconfigdir)"
+LTLIBRARIES = $(lib_LTLIBRARIES) $(noinst_LTLIBRARIES)
+libFLAC___static_la_DEPENDENCIES = ../libFLAC/libFLAC-static.la
+am__objects_1 = metadata.lo stream_decoder.lo stream_encoder.lo
+am_libFLAC___static_la_OBJECTS = $(am__objects_1)
+libFLAC___static_la_OBJECTS = $(am_libFLAC___static_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 = 
+am_libFLAC___la_OBJECTS = $(am__objects_1)
+libFLAC___la_OBJECTS = $(am_libFLAC___la_OBJECTS)
+libFLAC___la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(libFLAC___la_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+DEFAULT_INCLUDES = -I.@am__isrc@ -I$(top_builddir)
+depcomp = $(SHELL) $(top_srcdir)/depcomp
+am__maybe_remake_depfiles = depfiles
+am__depfiles_remade = ./$(DEPDIR)/metadata.Plo \
+	./$(DEPDIR)/stream_decoder.Plo ./$(DEPDIR)/stream_encoder.Plo
+am__mv = mv -f
+CXXCOMPILE = $(CXX) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) \
+	$(AM_CPPFLAGS) $(CPPFLAGS) $(AM_CXXFLAGS) $(CXXFLAGS)
+LTCXXCOMPILE = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=compile $(CXX) $(DEFS) \
+	$(DEFAULT_INCLUDES) $(INCLUDES) $(AM_CPPFLAGS) $(CPPFLAGS) \
+	$(AM_CXXFLAGS) $(CXXFLAGS)
+AM_V_CXX = $(am__v_CXX_@AM_V@)
+am__v_CXX_ = $(am__v_CXX_@AM_DEFAULT_V@)
+am__v_CXX_0 = @echo "  CXX     " $@;
+am__v_CXX_1 = 
+CXXLD = $(CXX)
+CXXLINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX $(AM_LIBTOOLFLAGS) \
+	$(LIBTOOLFLAGS) --mode=link $(CXXLD) $(AM_CXXFLAGS) \
+	$(CXXFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+AM_V_CXXLD = $(am__v_CXXLD_@AM_V@)
+am__v_CXXLD_ = $(am__v_CXXLD_@AM_DEFAULT_V@)
+am__v_CXXLD_0 = @echo "  CXXLD   " $@;
+am__v_CXXLD_1 = 
+SOURCES = $(libFLAC___static_la_SOURCES) $(libFLAC___la_SOURCES)
+DIST_SOURCES = $(libFLAC___static_la_SOURCES) $(libFLAC___la_SOURCES)
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+DATA = $(m4data_DATA) $(pkgconfig_DATA)
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+am__DIST_COMMON = $(srcdir)/Makefile.in $(srcdir)/flac++.pc.in \
+	$(top_srcdir)/depcomp
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+AR = @AR@
+AS = @AS@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CSCOPE = @CSCOPE@
+CTAGS = @CTAGS@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+ENABLE_64_BIT_WORDS = @ENABLE_64_BIT_WORDS@
+ETAGS = @ETAGS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+FILECMD = @FILECMD@
+FLAC_STATIC_LIBS = @FLAC_STATIC_LIBS@
+FLAC__HAS_OGG = @FLAC__HAS_OGG@
+FLAC__TEST_LEVEL = @FLAC__TEST_LEVEL@
+FLAC__TEST_WITH_VALGRIND = @FLAC__TEST_WITH_VALGRIND@
+GCC_MAJOR_VERSION = @GCC_MAJOR_VERSION@
+GCC_MINOR_VERSION = @GCC_MINOR_VERSION@
+GCC_VERSION = @GCC_VERSION@
+GIT_COMMIT_VERSION_HASH = @GIT_COMMIT_VERSION_HASH@
+GIT_FOUND = @GIT_FOUND@
+GREP = @GREP@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBICONV = @LIBICONV@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@
+LIB_FUZZING_ENGINE = @LIB_FUZZING_ENGINE@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBICONV = @LTLIBICONV@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OBJ_FORMAT = @OBJ_FORMAT@
+OGG_CFLAGS = @OGG_CFLAGS@
+OGG_LIBS = @OGG_LIBS@
+OGG_PACKAGE = @OGG_PACKAGE@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PANDOC = @PANDOC@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_CXX = @PTHREAD_CXX@
+PTHREAD_LIBS = @PTHREAD_LIBS@
+RANLIB = @RANLIB@
+RC = @RC@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+ax_pthread_config = @ax_pthread_config@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+runstatedir = @runstatedir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+lib_LTLIBRARIES = libFLAC++.la
+noinst_LTLIBRARIES = libFLAC++-static.la
+m4datadir = $(datadir)/aclocal
+m4data_DATA = libFLAC++.m4
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = flac++.pc
+AM_CPPFLAGS = -I$(top_builddir) -I$(srcdir)/include -I$(top_srcdir)/include
+EXTRA_DIST = \
+	CMakeLists.txt \
+	flac++.pc.in \
+	libFLAC++.m4 \
+	version.rc
+
+libFLAC___sources = \
+	metadata.cpp \
+	stream_decoder.cpp \
+	stream_encoder.cpp
+
+@HAVE_WINDRES_TRUE@@OS_IS_WINDOWS_TRUE@libFLAC___la_DEPENDENCIES = version.o
+@HAVE_WINDRES_TRUE@@OS_IS_WINDOWS_TRUE@windows_resource_link = -Wl,version.o
+
+# see 'http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning' for numbering convention
+libFLAC___la_LDFLAGS = $(AM_LDFLAGS) -no-undefined -version-info 11:0:0 $(windows_resource_link)
+libFLAC___la_LIBADD = ../libFLAC/libFLAC.la
+libFLAC___la_SOURCES = $(libFLAC___sources)
+libFLAC___static_la_SOURCES = $(libFLAC___sources)
+libFLAC___static_la_LIBADD = ../libFLAC/libFLAC-static.la
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .cpp .lo .o .obj .rc
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/libFLAC++/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign src/libFLAC++/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+flac++.pc: $(top_builddir)/config.status $(srcdir)/flac++.pc.in
+	cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+
+install-libLTLIBRARIES: $(lib_LTLIBRARIES)
+	@$(NORMAL_INSTALL)
+	@list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \
+	list2=; for p in $$list; do \
+	  if test -f $$p; then \
+	    list2="$$list2 $$p"; \
+	  else :; fi; \
+	done; \
+	test -z "$$list2" || { \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(libdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(libdir)" || exit 1; \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 '$(DESTDIR)$(libdir)'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL) $(INSTALL_STRIP_FLAG) $$list2 "$(DESTDIR)$(libdir)"; \
+	}
+
+uninstall-libLTLIBRARIES:
+	@$(NORMAL_UNINSTALL)
+	@list='$(lib_LTLIBRARIES)'; test -n "$(libdir)" || list=; \
+	for p in $$list; do \
+	  $(am__strip_dir) \
+	  echo " $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f '$(DESTDIR)$(libdir)/$$f'"; \
+	  $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=uninstall rm -f "$(DESTDIR)$(libdir)/$$f"; \
+	done
+
+clean-libLTLIBRARIES:
+	-test -z "$(lib_LTLIBRARIES)" || rm -f $(lib_LTLIBRARIES)
+	@list='$(lib_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+clean-noinstLTLIBRARIES:
+	-test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+	@list='$(noinst_LTLIBRARIES)'; \
+	locs=`for p in $$list; do echo $$p; done | \
+	      sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+	      sort -u`; \
+	test -z "$$locs" || { \
+	  echo rm -f $${locs}; \
+	  rm -f $${locs}; \
+	}
+
+libFLAC++-static.la: $(libFLAC___static_la_OBJECTS) $(libFLAC___static_la_DEPENDENCIES) $(EXTRA_libFLAC___static_la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(CXXLINK)  $(libFLAC___static_la_OBJECTS) $(libFLAC___static_la_LIBADD) $(LIBS)
+
+libFLAC++.la: $(libFLAC___la_OBJECTS) $(libFLAC___la_DEPENDENCIES) $(EXTRA_libFLAC___la_DEPENDENCIES) 
+	$(AM_V_CXXLD)$(libFLAC___la_LINK) -rpath $(libdir) $(libFLAC___la_OBJECTS) $(libFLAC___la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+	-rm -f *.$(OBJEXT)
+
+distclean-compile:
+	-rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/metadata.Plo@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stream_decoder.Plo@am__quote@ # am--include-marker
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/stream_encoder.Plo@am__quote@ # am--include-marker
+
+$(am__depfiles_remade):
+	@$(MKDIR_P) $(@D)
+	@echo '# dummy' >$@-t && $(am__mv) $@-t $@
+
+am--depfiles: $(am__depfiles_remade)
+
+.cpp.o:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.o$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ $<
+
+.cpp.obj:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.obj$$||'`;\
+@am__fastdepCXX_TRUE@	$(CXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ `$(CYGPATH_W) '$<'` &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Po
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=no @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(CXXCOMPILE) -c -o $@ `$(CYGPATH_W) '$<'`
+
+.cpp.lo:
+@am__fastdepCXX_TRUE@	$(AM_V_CXX)depbase=`echo $@ | sed 's|[^/]*$$|$(DEPDIR)/&|;s|\.lo$$||'`;\
+@am__fastdepCXX_TRUE@	$(LTCXXCOMPILE) -MT $@ -MD -MP -MF $$depbase.Tpo -c -o $@ $< &&\
+@am__fastdepCXX_TRUE@	$(am__mv) $$depbase.Tpo $$depbase.Plo
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	$(AM_V_CXX)source='$<' object='$@' libtool=yes @AMDEPBACKSLASH@
+@AMDEP_TRUE@@am__fastdepCXX_FALSE@	DEPDIR=$(DEPDIR) $(CXXDEPMODE) $(depcomp) @AMDEPBACKSLASH@
+@am__fastdepCXX_FALSE@	$(AM_V_CXX@am__nodep@)$(LTCXXCOMPILE) -c -o $@ $<
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+install-m4dataDATA: $(m4data_DATA)
+	@$(NORMAL_INSTALL)
+	@list='$(m4data_DATA)'; test -n "$(m4datadir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(m4datadir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(m4datadir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(m4datadir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(m4datadir)" || exit $$?; \
+	done
+
+uninstall-m4dataDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(m4data_DATA)'; test -n "$(m4datadir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(m4datadir)'; $(am__uninstall_files_from_dir)
+install-pkgconfigDATA: $(pkgconfig_DATA)
+	@$(NORMAL_INSTALL)
+	@list='$(pkgconfig_DATA)'; test -n "$(pkgconfigdir)" || list=; \
+	if test -n "$$list"; then \
+	  echo " $(MKDIR_P) '$(DESTDIR)$(pkgconfigdir)'"; \
+	  $(MKDIR_P) "$(DESTDIR)$(pkgconfigdir)" || exit 1; \
+	fi; \
+	for p in $$list; do \
+	  if test -f "$$p"; then d=; else d="$(srcdir)/"; fi; \
+	  echo "$$d$$p"; \
+	done | $(am__base_list) | \
+	while read files; do \
+	  echo " $(INSTALL_DATA) $$files '$(DESTDIR)$(pkgconfigdir)'"; \
+	  $(INSTALL_DATA) $$files "$(DESTDIR)$(pkgconfigdir)" || exit $$?; \
+	done
+
+uninstall-pkgconfigDATA:
+	@$(NORMAL_UNINSTALL)
+	@list='$(pkgconfig_DATA)'; test -n "$(pkgconfigdir)" || list=; \
+	files=`for p in $$list; do echo $$p; done | sed -e 's|^.*/||'`; \
+	dir='$(DESTDIR)$(pkgconfigdir)'; $(am__uninstall_files_from_dir)
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(DATA)
+installdirs:
+	for dir in "$(DESTDIR)$(libdir)" "$(DESTDIR)$(m4datadir)" "$(DESTDIR)$(pkgconfigdir)"; do \
+	  test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+	done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libLTLIBRARIES clean-libtool \
+	clean-noinstLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+		-rm -f ./$(DEPDIR)/metadata.Plo
+	-rm -f ./$(DEPDIR)/stream_decoder.Plo
+	-rm -f ./$(DEPDIR)/stream_encoder.Plo
+	-rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+	distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-m4dataDATA install-pkgconfigDATA
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-libLTLIBRARIES
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+		-rm -f ./$(DEPDIR)/metadata.Plo
+	-rm -f ./$(DEPDIR)/stream_decoder.Plo
+	-rm -f ./$(DEPDIR)/stream_encoder.Plo
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-libLTLIBRARIES uninstall-m4dataDATA \
+	uninstall-pkgconfigDATA
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+	clean-generic clean-libLTLIBRARIES clean-libtool \
+	clean-noinstLTLIBRARIES cscopelist-am ctags ctags-am distclean \
+	distclean-compile distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am \
+	install-libLTLIBRARIES install-m4dataDATA install-man \
+	install-pdf install-pdf-am install-pkgconfigDATA install-ps \
+	install-ps-am install-strip installcheck installcheck-am \
+	installdirs maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-compile mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am uninstall-libLTLIBRARIES uninstall-m4dataDATA \
+	uninstall-pkgconfigDATA
+
+.PRECIOUS: Makefile
+
+
+.rc.o:
+	$(RC) $(AM_CPPFLAGS) $< $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

extern/flac/src/libFLAC++/flac++.pc.in

@@ -0,0 +1,11 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: FLAC++
+Description: Free Lossless Audio Codec Library (C++ API)
+Version: @VERSION@
+Requires: flac
+Libs: -L${libdir} -lFLAC++
+Cflags: -I${includedir}

extern/flac/src/libFLAC++/libFLAC++.m4

@@ -0,0 +1,114 @@
+# Configure paths for libFLAC++
+# "Inspired" by ogg.m4
+# Caller must first run AM_PATH_LIBFLAC
+
+dnl AM_PATH_LIBFLACPP([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+dnl Test for libFLAC++, and define LIBFLACPP_CFLAGS, LIBFLACPP_LIBS, LIBFLACPP_LIBDIR
+dnl
+AC_DEFUN([AM_PATH_LIBFLACPP],
+[dnl 
+dnl Get the cflags and libraries
+dnl
+AC_ARG_WITH(libFLACPP,[  --with-libFLACPP=PFX   Prefix where libFLAC++ is installed (optional)], libFLACPP_prefix="$withval", libFLACPP_prefix="")
+AC_ARG_WITH(libFLACPP-libraries,[  --with-libFLACPP-libraries=DIR   Directory where libFLAC++ library is installed (optional)], libFLACPP_libraries="$withval", libFLACPP_libraries="")
+AC_ARG_WITH(libFLACPP-includes,[  --with-libFLACPP-includes=DIR   Directory where libFLAC++ header files are installed (optional)], libFLACPP_includes="$withval", libFLACPP_includes="")
+AC_ARG_ENABLE(libFLACPPtest, [  --disable-libFLACPPtest       Do not try to compile and run a test libFLAC++ program],, enable_libFLACPPtest=yes)
+
+  if test "x$libFLACPP_libraries" != "x" ; then
+    LIBFLACPP_LIBDIR="$libFLACPP_libraries"
+  elif test "x$libFLACPP_prefix" != "x" ; then
+    LIBFLACPP_LIBDIR="$libFLACPP_prefix/lib"
+  elif test "x$prefix" != "xNONE" ; then
+    LIBFLACPP_LIBDIR="$libdir"
+  fi
+
+  LIBFLACPP_LIBS="-L$LIBFLACPP_LIBDIR -lFLAC++ $LIBFLAC_LIBS"
+
+  if test "x$libFLACPP_includes" != "x" ; then
+    LIBFLACPP_CFLAGS="-I$libFLACPP_includes"
+  elif test "x$libFLACPP_prefix" != "x" ; then
+    LIBFLACPP_CFLAGS="-I$libFLACPP_prefix/include"
+  elif test "$prefix" != "xNONE"; then
+    LIBFLACPP_CFLAGS=""
+  fi
+
+  LIBFLACPP_CFLAGS="$LIBFLACPP_CFLAGS $LIBFLAC_CFLAGS"
+
+  AC_MSG_CHECKING(for libFLAC++)
+  no_libFLACPP=""
+
+
+  if test "x$enable_libFLACPPtest" = "xyes" ; then
+    ac_save_CFLAGS="$CFLAGS"
+    ac_save_CXXFLAGS="$CXXFLAGS"
+    ac_save_LIBS="$LIBS"
+    ac_save_LD_LIBRARY_PATH="$LD_LIBRARY_PATH"
+    CFLAGS="$CFLAGS $LIBFLACPP_CFLAGS"
+    CXXFLAGS="$CXXFLAGS $LIBFLACPP_CFLAGS"
+    LIBS="$LIBS $LIBFLACPP_LIBS"
+    LD_LIBRARY_PATH="$LIBFLACPP_LIBDIR:$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
+dnl
+dnl Now check if the installed libFLAC++ is sufficiently new.
+dnl
+      rm -f conf.libFLAC++test
+      AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <FLAC++/decoder.h>
+]],[[
+  system("touch conf.libFLAC++test");
+  return 0;
+]])],[],[no_libFLACPP=yes],[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+
+       CFLAGS="$ac_save_CFLAGS"
+       CXXFLAGS="$ac_save_CXXFLAGS"
+       LIBS="$ac_save_LIBS"
+       LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
+  fi
+
+  if test "x$no_libFLACPP" = "x" ; then
+     AC_MSG_RESULT(yes)
+     ifelse([$1], , :, [$1])     
+  else
+     AC_MSG_RESULT(no)
+     if test -f conf.libFLAC++test ; then
+       :
+     else
+       echo "*** Could not run libFLAC++ test program, checking why..."
+       CFLAGS="$CFLAGS $LIBFLACPP_CFLAGS"
+       CXXFLAGS="$CXXFLAGS $LIBFLACPP_CFLAGS"
+       LIBS="$LIBS $LIBFLACPP_LIBS"
+       LD_LIBRARY_PATH="$LIBFLACPP_LIBDIR:$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
+       AC_TRY_LINK([
+#include <stdio.h>
+#include <FLAC++/decoder.h>
+],     [ return 0; ],
+       [ echo "*** The test program compiled, but did not run. This usually means"
+       echo "*** that the run-time linker is not finding libFLAC++ or finding the wrong"
+       echo "*** version of libFLAC++. If it is not finding libFLAC++, you'll need to set your"
+       echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+       echo "*** to the installed location  Also, make sure you have run ldconfig if that"
+       echo "*** is required on your system"
+       echo "***"
+       echo "*** If you have an old version installed, it is best to remove it, although"
+       echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+       [ echo "*** The test program failed to compile or link. See the file config.log for the"
+       echo "*** exact error that occurred. This usually means libFLAC++ was incorrectly installed"
+       echo "*** or that you have moved libFLAC++ since it was installed. In the latter case, you"
+       echo "*** may want to edit the libFLAC++-config script: $LIBFLACPP_CONFIG" ])
+       CFLAGS="$ac_save_CFLAGS"
+       CXXFLAGS="$ac_save_CXXFLAGS"
+       LIBS="$ac_save_LIBS"
+       LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
+     fi
+     LIBFLACPP_CFLAGS=""
+     LIBFLACPP_LIBDIR=""
+     LIBFLACPP_LIBS=""
+     ifelse([$2], , :, [$2])
+  fi
+  AC_SUBST(LIBFLACPP_CFLAGS)
+  AC_SUBST(LIBFLACPP_LIBDIR)
+  AC_SUBST(LIBFLACPP_LIBS)
+  rm -f conf.libFLAC++test
+])

extern/flac/src/libFLAC++/stream_decoder.cpp

@@ -0,0 +1,436 @@
+/* libFLAC++ - Free Lossless Audio Codec library
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "FLAC++/decoder.h"
+#include "FLAC/assert.h"
+
+#ifdef _MSC_VER
+// warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning)
+#pragma warning ( disable : 4800 )
+#endif
+
+namespace FLAC {
+	namespace Decoder {
+
+		// ------------------------------------------------------------
+		//
+		// Stream
+		//
+		// ------------------------------------------------------------
+
+		Stream::Stream():
+		decoder_(::FLAC__stream_decoder_new())
+		{ }
+
+		Stream::~Stream()
+		{
+			if(0 != decoder_) {
+				(void)::FLAC__stream_decoder_finish(decoder_);
+				::FLAC__stream_decoder_delete(decoder_);
+			}
+		}
+
+		bool Stream::is_valid() const
+		{
+			return 0 != decoder_;
+		}
+
+		bool Stream::set_ogg_serial_number(long value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_set_ogg_serial_number(decoder_, value));
+		}
+
+		bool Stream::set_decode_chained_stream(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_set_decode_chained_stream(decoder_, value));
+		}
+
+		bool Stream::set_md5_checking(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_set_md5_checking(decoder_, value));
+		}
+
+		bool Stream::set_metadata_respond(::FLAC__MetadataType type)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_set_metadata_respond(decoder_, type));
+		}
+
+		bool Stream::set_metadata_respond_application(const FLAC__byte id[4])
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_set_metadata_respond_application(decoder_, id));
+		}
+
+		bool Stream::set_metadata_respond_all()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_set_metadata_respond_all(decoder_));
+		}
+
+		bool Stream::set_metadata_ignore(::FLAC__MetadataType type)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_set_metadata_ignore(decoder_, type));
+		}
+
+		bool Stream::set_metadata_ignore_application(const FLAC__byte id[4])
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_set_metadata_ignore_application(decoder_, id));
+		}
+
+		bool Stream::set_metadata_ignore_all()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_set_metadata_ignore_all(decoder_));
+		}
+
+		Stream::State Stream::get_state() const
+		{
+			FLAC__ASSERT(is_valid());
+			return State(::FLAC__stream_decoder_get_state(decoder_));
+		}
+
+		bool Stream::get_decode_chained_stream() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_get_decode_chained_stream(decoder_));
+		}
+
+		bool Stream::get_md5_checking() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_get_md5_checking(decoder_));
+		}
+
+		FLAC__uint64 Stream::get_total_samples() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_get_total_samples(decoder_);
+		}
+
+		FLAC__uint64 Stream::find_total_samples()
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_find_total_samples(decoder_);
+		}
+
+		uint32_t Stream::get_channels() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_get_channels(decoder_);
+		}
+
+		::FLAC__ChannelAssignment Stream::get_channel_assignment() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_get_channel_assignment(decoder_);
+		}
+
+		uint32_t Stream::get_bits_per_sample() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_get_bits_per_sample(decoder_);
+		}
+
+		uint32_t Stream::get_sample_rate() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_get_sample_rate(decoder_);
+		}
+
+		uint32_t Stream::get_blocksize() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_get_blocksize(decoder_);
+		}
+
+		bool Stream::get_decode_position(FLAC__uint64 *position) const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_get_decode_position(decoder_, position);
+		}
+
+		int32_t Stream::get_link_lengths(FLAC__uint64 **link_lengths)
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_get_link_lengths(decoder_, link_lengths);
+		}
+
+		::FLAC__StreamDecoderInitStatus Stream::init()
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_init_stream(decoder_, read_callback_, seek_callback_, tell_callback_, length_callback_, eof_callback_, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamDecoderInitStatus Stream::init_ogg()
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_decoder_init_ogg_stream(decoder_, read_callback_, seek_callback_, tell_callback_, length_callback_, eof_callback_, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
+		}
+
+		bool Stream::finish()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_finish(decoder_));
+		}
+
+		bool Stream::finish_link()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_finish_link(decoder_));
+		}
+
+		bool Stream::flush()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_flush(decoder_));
+		}
+
+		bool Stream::reset()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_reset(decoder_));
+		}
+
+		bool Stream::process_single()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_process_single(decoder_));
+		}
+
+		bool Stream::process_until_end_of_metadata()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_process_until_end_of_metadata(decoder_));
+		}
+
+		bool Stream::process_until_end_of_link()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_process_until_end_of_link(decoder_));
+		}
+
+		bool Stream::process_until_end_of_stream()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_process_until_end_of_stream(decoder_));
+		}
+
+		bool Stream::skip_single_frame()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_skip_single_frame(decoder_));
+		}
+
+		bool Stream::skip_single_link()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_skip_single_link(decoder_));
+		}
+
+		bool Stream::seek_absolute(FLAC__uint64 sample)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_decoder_seek_absolute(decoder_, sample));
+		}
+
+		::FLAC__StreamDecoderSeekStatus Stream::seek_callback(FLAC__uint64 absolute_byte_offset)
+		{
+			(void)absolute_byte_offset;
+			return ::FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED;
+		}
+
+		::FLAC__StreamDecoderTellStatus Stream::tell_callback(FLAC__uint64 *absolute_byte_offset)
+		{
+			(void)absolute_byte_offset;
+			return ::FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED;
+		}
+
+		::FLAC__StreamDecoderLengthStatus Stream::length_callback(FLAC__uint64 *stream_length)
+		{
+			(void)stream_length;
+			return ::FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED;
+		}
+
+		bool Stream::eof_callback()
+		{
+			return false;
+		}
+
+		void Stream::metadata_callback(const ::FLAC__StreamMetadata *metadata)
+		{
+			(void)metadata;
+		}
+
+		::FLAC__StreamDecoderReadStatus Stream::read_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+		{
+			(void)decoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->read_callback(buffer, bytes);
+		}
+
+		::FLAC__StreamDecoderSeekStatus Stream::seek_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 absolute_byte_offset, void *client_data)
+		{
+			(void) decoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->seek_callback(absolute_byte_offset);
+		}
+
+		::FLAC__StreamDecoderTellStatus Stream::tell_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
+		{
+			(void) decoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->tell_callback(absolute_byte_offset);
+		}
+
+		::FLAC__StreamDecoderLengthStatus Stream::length_callback_(const ::FLAC__StreamDecoder *decoder, FLAC__uint64 *stream_length, void *client_data)
+		{
+			(void) decoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->length_callback(stream_length);
+		}
+
+		FLAC__bool Stream::eof_callback_(const ::FLAC__StreamDecoder *decoder, void *client_data)
+		{
+			(void) decoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->eof_callback();
+		}
+
+		::FLAC__StreamDecoderWriteStatus Stream::write_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__Frame *frame, const FLAC__int32 * const buffer[], void *client_data)
+		{
+			(void)decoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->write_callback(frame, buffer);
+		}
+
+		void Stream::metadata_callback_(const ::FLAC__StreamDecoder *decoder, const ::FLAC__StreamMetadata *metadata, void *client_data)
+		{
+			(void)decoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			instance->metadata_callback(metadata);
+		}
+
+		void Stream::error_callback_(const ::FLAC__StreamDecoder *decoder, ::FLAC__StreamDecoderErrorStatus status, void *client_data)
+		{
+			(void)decoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			instance->error_callback(status);
+		}
+
+		// ------------------------------------------------------------
+		//
+		// File
+		//
+		// ------------------------------------------------------------
+
+		File::File():
+			Stream()
+		{ }
+
+		File::~File()
+		{
+		}
+
+		::FLAC__StreamDecoderInitStatus File::init(FILE *file)
+		{
+			FLAC__ASSERT(0 != decoder_);
+			return ::FLAC__stream_decoder_init_FILE(decoder_, file, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamDecoderInitStatus File::init(const char *filename)
+		{
+			FLAC__ASSERT(0 != decoder_);
+			return ::FLAC__stream_decoder_init_file(decoder_, filename, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamDecoderInitStatus File::init(const std::string &filename)
+		{
+			return init(filename.c_str());
+		}
+
+		::FLAC__StreamDecoderInitStatus File::init_ogg(FILE *file)
+		{
+			FLAC__ASSERT(0 != decoder_);
+			return ::FLAC__stream_decoder_init_ogg_FILE(decoder_, file, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamDecoderInitStatus File::init_ogg(const char *filename)
+		{
+			FLAC__ASSERT(0 != decoder_);
+			return ::FLAC__stream_decoder_init_ogg_file(decoder_, filename, write_callback_, metadata_callback_, error_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamDecoderInitStatus File::init_ogg(const std::string &filename)
+		{
+			return init_ogg(filename.c_str());
+		}
+
+		// This is a dummy to satisfy the pure virtual from Stream; the
+		// read callback will never be called since we are initializing
+		// with FLAC__stream_decoder_init_FILE() or
+		// FLAC__stream_decoder_init_file() and those supply the read
+		// callback internally.
+		::FLAC__StreamDecoderReadStatus File::read_callback(FLAC__byte buffer[], size_t *bytes)
+		{
+			(void)buffer, (void)bytes;
+			FLAC__ASSERT(false);
+			return ::FLAC__STREAM_DECODER_READ_STATUS_ABORT; // double protection
+		}
+
+	} // namespace Decoder
+} // namespace FLAC

extern/flac/src/libFLAC++/stream_encoder.cpp

@@ -0,0 +1,531 @@
+/* libFLAC++ - Free Lossless Audio Codec library
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#include "config.h"
+#endif
+
+#include "FLAC++/encoder.h"
+#include "FLAC++/metadata.h"
+#include "FLAC/assert.h"
+
+#ifdef _MSC_VER
+// warning C4800: 'int' : forcing to bool 'true' or 'false' (performance warning)
+#pragma warning ( disable : 4800 )
+#endif
+
+namespace FLAC {
+	namespace Encoder {
+
+		// ------------------------------------------------------------
+		//
+		// Stream
+		//
+		// ------------------------------------------------------------
+
+		Stream::Stream():
+		encoder_(::FLAC__stream_encoder_new())
+		{ }
+
+		Stream::~Stream()
+		{
+			if(0 != encoder_) {
+				(void)::FLAC__stream_encoder_finish(encoder_);
+				::FLAC__stream_encoder_delete(encoder_);
+			}
+		}
+
+		bool Stream::is_valid() const
+		{
+			return 0 != encoder_;
+		}
+
+		bool Stream::set_ogg_serial_number(long value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_ogg_serial_number(encoder_, value));
+		}
+
+		bool Stream::set_verify(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_verify(encoder_, value));
+		}
+
+		bool Stream::set_streamable_subset(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_streamable_subset(encoder_, value));
+		}
+
+		bool Stream::set_channels(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_channels(encoder_, value));
+		}
+
+		bool Stream::set_bits_per_sample(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_bits_per_sample(encoder_, value));
+		}
+
+		bool Stream::set_sample_rate(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_sample_rate(encoder_, value));
+		}
+
+		bool Stream::set_compression_level(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_compression_level(encoder_, value));
+		}
+
+		bool Stream::set_blocksize(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_blocksize(encoder_, value));
+		}
+
+		bool Stream::set_do_mid_side_stereo(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_do_mid_side_stereo(encoder_, value));
+		}
+
+		bool Stream::set_loose_mid_side_stereo(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_loose_mid_side_stereo(encoder_, value));
+		}
+
+		bool Stream::set_apodization(const char *specification)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_apodization(encoder_, specification));
+		}
+
+		bool Stream::set_max_lpc_order(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_max_lpc_order(encoder_, value));
+		}
+
+		bool Stream::set_qlp_coeff_precision(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_qlp_coeff_precision(encoder_, value));
+		}
+
+		bool Stream::set_do_qlp_coeff_prec_search(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_do_qlp_coeff_prec_search(encoder_, value));
+		}
+
+		bool Stream::set_do_escape_coding(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_do_escape_coding(encoder_, value));
+		}
+
+		bool Stream::set_do_exhaustive_model_search(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_do_exhaustive_model_search(encoder_, value));
+		}
+
+		bool Stream::set_min_residual_partition_order(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_min_residual_partition_order(encoder_, value));
+		}
+
+		bool Stream::set_max_residual_partition_order(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_max_residual_partition_order(encoder_, value));
+		}
+
+		bool Stream::set_rice_parameter_search_dist(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_rice_parameter_search_dist(encoder_, value));
+		}
+
+		bool Stream::set_total_samples_estimate(FLAC__uint64 value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_total_samples_estimate(encoder_, value));
+		}
+
+		bool Stream::set_metadata(::FLAC__StreamMetadata **metadata, uint32_t num_blocks)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_metadata(encoder_, metadata, num_blocks));
+		}
+
+		bool Stream::set_metadata(FLAC::Metadata::Prototype **metadata, uint32_t num_blocks)
+		{
+			FLAC__ASSERT(is_valid());
+			// because C++ doesn't have VLA's (variable length arrays)
+			// this ugly workaround is needed
+			::FLAC__StreamMetadata **m = new ::FLAC__StreamMetadata*[num_blocks];
+			for(uint32_t i = 0; i < num_blocks; i++) {
+				// we can get away with the const_cast since we know the encoder will only correct the is_last flags
+				m[i] = const_cast< ::FLAC__StreamMetadata*>(static_cast<const ::FLAC__StreamMetadata*>(*metadata[i]));
+			}
+			// complete the hack
+			const bool ok = static_cast<bool>(::FLAC__stream_encoder_set_metadata(encoder_, m, num_blocks));
+			delete [] m;
+			return ok;
+		}
+
+		bool Stream::set_limit_min_bitrate(bool value)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_set_limit_min_bitrate(encoder_, value));
+		}
+
+		uint32_t Stream::set_num_threads(uint32_t value)
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_set_num_threads(encoder_, value);
+		}
+
+		Stream::State Stream::get_state() const
+		{
+			FLAC__ASSERT(is_valid());
+			return State(::FLAC__stream_encoder_get_state(encoder_));
+		}
+
+		Decoder::Stream::State Stream::get_verify_decoder_state() const
+		{
+			FLAC__ASSERT(is_valid());
+			return Decoder::Stream::State(::FLAC__stream_encoder_get_verify_decoder_state(encoder_));
+		}
+
+		void Stream::get_verify_decoder_error_stats(FLAC__uint64 *absolute_sample, uint32_t *frame_number, uint32_t *channel, uint32_t *sample, FLAC__int32 *expected, FLAC__int32 *got)
+		{
+			FLAC__ASSERT(is_valid());
+			::FLAC__stream_encoder_get_verify_decoder_error_stats(encoder_, absolute_sample, frame_number, channel, sample, expected, got);
+		}
+
+		bool Stream::get_verify() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_get_verify(encoder_));
+		}
+
+		bool Stream::get_streamable_subset() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_get_streamable_subset(encoder_));
+		}
+
+		bool Stream::get_do_mid_side_stereo() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_get_do_mid_side_stereo(encoder_));
+		}
+
+		bool Stream::get_loose_mid_side_stereo() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_get_loose_mid_side_stereo(encoder_));
+		}
+
+		uint32_t Stream::get_channels() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_channels(encoder_);
+		}
+
+		uint32_t Stream::get_bits_per_sample() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_bits_per_sample(encoder_);
+		}
+
+		uint32_t Stream::get_sample_rate() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_sample_rate(encoder_);
+		}
+
+		uint32_t Stream::get_blocksize() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_blocksize(encoder_);
+		}
+
+		uint32_t Stream::get_max_lpc_order() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_max_lpc_order(encoder_);
+		}
+
+		uint32_t Stream::get_qlp_coeff_precision() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_qlp_coeff_precision(encoder_);
+		}
+
+		bool Stream::get_do_qlp_coeff_prec_search() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_get_do_qlp_coeff_prec_search(encoder_));
+		}
+
+		bool Stream::get_do_escape_coding() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_get_do_escape_coding(encoder_));
+		}
+
+		bool Stream::get_do_exhaustive_model_search() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_get_do_exhaustive_model_search(encoder_));
+		}
+
+		uint32_t Stream::get_min_residual_partition_order() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_min_residual_partition_order(encoder_);
+		}
+
+		uint32_t Stream::get_max_residual_partition_order() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_max_residual_partition_order(encoder_);
+		}
+
+		uint32_t Stream::get_rice_parameter_search_dist() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_rice_parameter_search_dist(encoder_);
+		}
+
+		FLAC__uint64 Stream::get_total_samples_estimate() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_total_samples_estimate(encoder_);
+		}
+
+		bool Stream::get_limit_min_bitrate() const
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_get_limit_min_bitrate(encoder_));
+		}
+
+		uint32_t Stream::get_num_threads() const
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_get_num_threads(encoder_);
+		}
+
+		::FLAC__StreamEncoderInitStatus Stream::init()
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_init_stream(encoder_, write_callback_, seek_callback_, tell_callback_, metadata_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamEncoderInitStatus Stream::init_ogg()
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_init_ogg_stream(encoder_, read_callback_, write_callback_, seek_callback_, tell_callback_, metadata_callback_, /*client_data=*/(void*)this);
+		}
+
+		bool Stream::finish()
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_finish(encoder_));
+		}
+
+		bool Stream::process(const FLAC__int32 * const buffer[], uint32_t samples)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_process(encoder_, buffer, samples));
+		}
+
+		bool Stream::process_interleaved(const FLAC__int32 buffer[], uint32_t samples)
+		{
+			FLAC__ASSERT(is_valid());
+			return static_cast<bool>(::FLAC__stream_encoder_process_interleaved(encoder_, buffer, samples));
+		}
+
+		::FLAC__StreamEncoderReadStatus Stream::read_callback(FLAC__byte buffer[], size_t *bytes)
+		{
+			(void)buffer, (void)bytes;
+			return ::FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED;
+		}
+
+		::FLAC__StreamEncoderSeekStatus Stream::seek_callback(FLAC__uint64 absolute_byte_offset)
+		{
+			(void)absolute_byte_offset;
+			return ::FLAC__STREAM_ENCODER_SEEK_STATUS_UNSUPPORTED;
+		}
+
+		::FLAC__StreamEncoderTellStatus Stream::tell_callback(FLAC__uint64 *absolute_byte_offset)
+		{
+			(void)absolute_byte_offset;
+			return ::FLAC__STREAM_ENCODER_TELL_STATUS_UNSUPPORTED;
+		}
+
+		void Stream::metadata_callback(const ::FLAC__StreamMetadata *metadata)
+		{
+			(void)metadata;
+		}
+
+		::FLAC__StreamEncoderReadStatus Stream::read_callback_(const ::FLAC__StreamEncoder *encoder, FLAC__byte buffer[], size_t *bytes, void *client_data)
+		{
+			(void)encoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->read_callback(buffer, bytes);
+		}
+
+		::FLAC__StreamEncoderWriteStatus Stream::write_callback_(const ::FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, void *client_data)
+		{
+			(void)encoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->write_callback(buffer, bytes, samples, current_frame);
+		}
+
+		::FLAC__StreamEncoderSeekStatus Stream::seek_callback_(const ::FLAC__StreamEncoder *encoder, FLAC__uint64 absolute_byte_offset, void *client_data)
+		{
+			(void)encoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->seek_callback(absolute_byte_offset);
+		}
+
+		::FLAC__StreamEncoderTellStatus Stream::tell_callback_(const ::FLAC__StreamEncoder *encoder, FLAC__uint64 *absolute_byte_offset, void *client_data)
+		{
+			(void)encoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			return instance->tell_callback(absolute_byte_offset);
+		}
+
+		void Stream::metadata_callback_(const ::FLAC__StreamEncoder *encoder, const ::FLAC__StreamMetadata *metadata, void *client_data)
+		{
+			(void)encoder;
+			FLAC__ASSERT(0 != client_data);
+			Stream *instance = reinterpret_cast<Stream *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			instance->metadata_callback(metadata);
+		}
+
+		// ------------------------------------------------------------
+		//
+		// File
+		//
+		// ------------------------------------------------------------
+
+		File::File():
+			Stream()
+		{ }
+
+		File::~File()
+		{
+		}
+
+		::FLAC__StreamEncoderInitStatus File::init(FILE *file)
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_init_FILE(encoder_, file, progress_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamEncoderInitStatus File::init(const char *filename)
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_init_file(encoder_, filename, progress_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamEncoderInitStatus File::init(const std::string &filename)
+		{
+			return init(filename.c_str());
+		}
+
+		::FLAC__StreamEncoderInitStatus File::init_ogg(FILE *file)
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_init_ogg_FILE(encoder_, file, progress_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamEncoderInitStatus File::init_ogg(const char *filename)
+		{
+			FLAC__ASSERT(is_valid());
+			return ::FLAC__stream_encoder_init_ogg_file(encoder_, filename, progress_callback_, /*client_data=*/(void*)this);
+		}
+
+		::FLAC__StreamEncoderInitStatus File::init_ogg(const std::string &filename)
+		{
+			return init_ogg(filename.c_str());
+		}
+
+		// This is a dummy to satisfy the pure virtual from Stream; the
+		// read callback will never be called since we are initializing
+		// with FLAC__stream_decoder_init_FILE() or
+		// FLAC__stream_decoder_init_file() and those supply the read
+		// callback internally.
+		::FLAC__StreamEncoderWriteStatus File::write_callback(const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame)
+		{
+			(void)buffer, (void)bytes, (void)samples, (void)current_frame;
+			FLAC__ASSERT(false);
+			return ::FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR; // double protection
+		}
+
+		void File::progress_callback(FLAC__uint64 bytes_written, FLAC__uint64 samples_written, uint32_t frames_written, uint32_t total_frames_estimate)
+		{
+			(void)bytes_written, (void)samples_written, (void)frames_written, (void)total_frames_estimate;
+		}
+
+		void File::progress_callback_(const ::FLAC__StreamEncoder *encoder, FLAC__uint64 bytes_written, FLAC__uint64 samples_written, uint32_t frames_written, uint32_t total_frames_estimate, void *client_data)
+		{
+			(void)encoder;
+			FLAC__ASSERT(0 != client_data);
+			File *instance = reinterpret_cast<File *>(client_data);
+			FLAC__ASSERT(0 != instance);
+			instance->progress_callback(bytes_written, samples_written, frames_written, total_frames_estimate);
+		}
+
+	} // namespace Encoder
+} // namespace FLAC

extern/flac/src/libFLAC++/version.rc

@@ -0,0 +1,40 @@
+#include <winver.h>
+#include "config.h"
+#include "FLAC++/export.h"
+
+#if (defined GIT_COMMIT_HASH && defined GIT_COMMIT_DATE)
+# ifdef GIT_COMMIT_TAG
+#  define VERSIONSTRING GIT_COMMIT_TAG
+# else
+#  define VERSIONSTRING "git-" GIT_COMMIT_HASH
+# endif
+#else
+# define VERSIONSTRING PACKAGE_VERSION
+#endif
+
+#define xstr(s) str(s)
+#define str(s) #s
+
+VS_VERSION_INFO VERSIONINFO
+FILEVERSION    FLACPP_API_VERSION_CURRENT,FLACPP_API_VERSION_REVISION,0,0
+FILEFLAGSMASK  VS_FFI_FILEFLAGSMASK
+FILEFLAGS      0
+FILEOS         VOS__WINDOWS32
+FILETYPE       VFT_DLL
+BEGIN
+    BLOCK "StringFileInfo"
+    BEGIN
+        BLOCK "040904b0"
+        BEGIN
+            VALUE "FileDescription", "libFLAC++ for Windows"
+            VALUE "ProductName", "Free Lossless Audio Codec"
+            VALUE "ProductVersion", VERSIONSTRING
+            VALUE "CompanyName", "Xiph.Org"
+            VALUE "LegalCopyright", "2000-2009 Josh Coalson, 2011-2025 Xiph.Org Foundation"
+        END
+    END
+    BLOCK "VarFileInfo"
+    BEGIN
+        VALUE "Translation", 0x409, 1200
+    END
+END

extern/flac/src/libFLAC/CMakeLists.txt

@@ -0,0 +1,130 @@
+option(WITH_ASM "Use any assembly optimization routines" ON)
+
+check_include_file("cpuid.h" HAVE_CPUID_H)
+check_include_file("sys/param.h" HAVE_SYS_PARAM_H)
+
+set(CMAKE_REQUIRED_LIBRARIES m)
+check_function_exists(lround HAVE_LROUND)
+
+include(CheckCSourceCompiles)
+include(CheckCPUArch)
+include(CheckA64NEON)
+
+check_cpu_arch_x64(FLAC__CPU_X86_64)
+if(NOT FLAC__CPU_X86_64)
+    check_cpu_arch_x86(FLAC__CPU_IA32)
+endif()
+
+if(FLAC__CPU_X86_64 OR FLAC__CPU_IA32)
+    set(FLAC__ALIGN_MALLOC_DATA 1)
+    option(WITH_AVX "Enable AVX, AVX2 optimizations (with runtime detection, resulting binary does not require AVX2, so only necessary when a compiler doesn't know about AVX)" ON)
+    if(WITH_AVX AND MSVC)
+        set_source_files_properties(fixed_intrin_avx2.c lpc_intrin_avx2.c stream_encoder_intrin_avx2.c lpc_intrin_fma.c PROPERTIES COMPILE_FLAGS /arch:AVX2)
+    endif()
+else()
+    check_cpu_arch_arm64(FLAC__CPU_ARM64)
+    if(FLAC__CPU_ARM64)
+         check_a64neon(FLAC__HAS_A64NEONINTRIN)
+    endif()
+endif()
+
+if(NOT WITH_ASM)
+    add_definitions(-DFLAC__NO_ASM)
+endif()
+
+include_directories("include")
+
+add_library(FLAC
+    bitmath.c
+    bitreader.c
+    bitwriter.c
+    cpu.c
+    crc.c
+    fixed.c
+    fixed_intrin_sse2.c
+    fixed_intrin_ssse3.c
+    fixed_intrin_sse42.c
+    fixed_intrin_avx2.c
+    float.c
+    format.c
+    lpc.c
+    lpc_intrin_neon.c
+    lpc_intrin_sse2.c
+    lpc_intrin_sse41.c
+    lpc_intrin_avx2.c
+    lpc_intrin_fma.c
+    md5.c
+    memory.c
+    metadata_iterators.c
+    metadata_object.c
+    stream_decoder.c
+    stream_encoder.c
+    stream_encoder_intrin_sse2.c
+    stream_encoder_intrin_ssse3.c
+    stream_encoder_intrin_avx2.c
+    stream_encoder_framing.c
+    version.rc
+    window.c
+    $<$<BOOL:${WIN32}>:../../include/share/win_utf8_io.h>
+    $<$<BOOL:${WIN32}>:../share/win_utf8_io/win_utf8_io.c>
+    $<$<BOOL:${OGG_FOUND}>:ogg_decoder_aspect.c>
+    $<$<BOOL:${OGG_FOUND}>:ogg_encoder_aspect.c>
+    $<$<BOOL:${OGG_FOUND}>:ogg_helper.c>
+    $<$<BOOL:${OGG_FOUND}>:ogg_mapping.c>)
+set_property(TARGET FLAC PROPERTY PROJECT_LABEL "libFLAC")
+if(TARGET FLAC-asm)
+    target_sources(FLAC PRIVATE $<TARGET_OBJECTS:FLAC-asm>)
+endif()
+
+target_compile_definitions(FLAC
+    PRIVATE $<$<BOOL:${BUILD_SHARED_LIBS}>:FLAC_API_EXPORTS>
+    PUBLIC $<$<NOT:$<BOOL:${BUILD_SHARED_LIBS}>>:FLAC__NO_DLL>)
+if(NOT WIN32)
+    target_compile_definitions(FLAC PRIVATE $<$<BOOL:${BUILD_SHARED_LIBS}>:FLAC__USE_VISIBILITY_ATTR>)
+endif()
+target_include_directories(FLAC INTERFACE
+    "$<BUILD_INTERFACE:${PROJECT_SOURCE_DIR}/include>"
+    "$<INSTALL_INTERFACE:${CMAKE_INSTALL_INCLUDEDIR}>")
+target_link_libraries(FLAC PUBLIC $<$<BOOL:${HAVE_LROUND}>:m>)
+if(TARGET Ogg::ogg)
+    target_link_libraries(FLAC PUBLIC Ogg::ogg)
+endif()
+if(BUILD_SHARED_LIBS)
+    set_target_properties(FLAC PROPERTIES
+        VERSION 14.0.0
+        SOVERSION 14)
+    if(NOT WIN32)
+        set_target_properties(FLAC PROPERTIES C_VISIBILITY_PRESET hidden)
+    endif()
+endif()
+
+check_c_compiler_flag("-fassociative-math -fno-signed-zeros -fno-trapping-math -freciprocal-math" HAVE_ASSOC_MATH)
+
+if(MSVC)
+        target_compile_options(FLAC BEFORE PRIVATE "/fp:fast")
+else()
+    if(HAVE_ASSOC_MATH)
+        target_compile_options(FLAC BEFORE PRIVATE -fassociative-math -fno-signed-zeros -fno-trapping-math -freciprocal-math)
+    endif()
+endif()
+
+if(HAVE_PTHREAD)
+    target_link_libraries(FLAC PUBLIC Threads::Threads)
+endif()
+
+add_library(FLAC::FLAC ALIAS FLAC)
+
+install(TARGETS FLAC EXPORT targets
+    ARCHIVE DESTINATION "${CMAKE_INSTALL_LIBDIR}/"
+    LIBRARY DESTINATION "${CMAKE_INSTALL_LIBDIR}/"
+    RUNTIME DESTINATION "${CMAKE_INSTALL_BINDIR}/")
+
+if(INSTALL_PKGCONFIG_MODULES)
+    set(prefix "${CMAKE_INSTALL_PREFIX}")
+    set(exec_prefix "${CMAKE_INSTALL_PREFIX}")
+    set(libdir "${CMAKE_INSTALL_FULL_LIBDIR}")
+    set(includedir "${CMAKE_INSTALL_FULL_INCLUDEDIR}")
+    configure_file(flac.pc.in flac.pc @ONLY)
+    install(FILES "${CMAKE_CURRENT_BINARY_DIR}/flac.pc"
+        DESTINATION "${CMAKE_INSTALL_LIBDIR}/pkgconfig")
+endif()

extern/flac/src/libFLAC/Makefile.am

@@ -0,0 +1,123 @@
+#  libFLAC - Free Lossless Audio Codec library
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  - Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#
+#  - Redistributions in binary form must reproduce the above copyright
+#  notice, this list of conditions and the following disclaimer in the
+#  documentation and/or other materials provided with the distribution.
+#
+#  - Neither the name of the Xiph.org Foundation nor the names of its
+#  contributors may be used to endorse or promote products derived from
+#  this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+AM_CPPFLAGS = -I$(top_builddir) -I$(srcdir)/include -I$(top_srcdir)/include
+lib_LTLIBRARIES = libFLAC.la
+noinst_LTLIBRARIES = libFLAC-static.la
+if DEBUG
+DEBUGCFLAGS = -DFLAC__OVERFLOW_DETECT
+else
+if ASSOC_MATH_AVAILABLE
+ASSOCMATHCFLAGS = -fassociative-math -fno-signed-zeros -fno-trapping-math -freciprocal-math
+endif
+endif
+
+AM_CFLAGS = $(DEBUGCFLAGS) ${ASSOCMATHCFLAGS} @OGG_CFLAGS@
+
+libFLAC_la_LIBADD = @OGG_LIBS@ -lm
+
+SUBDIRS = include .
+
+m4datadir = $(datadir)/aclocal
+m4data_DATA = libFLAC.m4
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = flac.pc
+
+EXTRA_DIST = \
+	CMakeLists.txt \
+	flac.pc.in \
+	libFLAC.m4 \
+	version.rc \
+	deduplication/bitreader_read_rice_signed_block.c \
+	deduplication/lpc_compute_autocorrelation_intrin.c \
+	deduplication/lpc_compute_autocorrelation_intrin_sse2.c \
+	deduplication/lpc_compute_autocorrelation_intrin_neon.c
+
+if OS_IS_WINDOWS
+windows_unicode_compat = ../share/win_utf8_io/win_utf8_io.c
+if HAVE_WINDRES
+libFLAC_la_DEPENDENCIES = version.o
+windows_resource_link = -Wl,version.o
+endif
+endif
+
+if FLaC__HAS_OGG
+extra_ogg_sources = \
+	ogg_decoder_aspect.c \
+	ogg_encoder_aspect.c \
+	ogg_helper.c \
+	ogg_mapping.c
+endif
+
+# see 'http://www.gnu.org/software/libtool/manual/libtool.html#Libtool-versioning' for numbering convention
+libFLAC_la_LDFLAGS = $(AM_LDFLAGS) -no-undefined -version-info 14:0:0 $(windows_resource_link)
+
+libFLAC_sources = \
+	bitmath.c \
+	bitreader.c \
+	bitwriter.c \
+	cpu.c \
+	crc.c \
+	fixed.c \
+	fixed_intrin_sse2.c \
+	fixed_intrin_ssse3.c \
+	fixed_intrin_sse42.c \
+	fixed_intrin_avx2.c \
+	float.c \
+	format.c \
+	lpc.c \
+	lpc_intrin_sse2.c \
+	lpc_intrin_sse41.c \
+	lpc_intrin_avx2.c \
+	lpc_intrin_fma.c \
+	lpc_intrin_neon.c \
+	md5.c \
+	memory.c \
+	metadata_iterators.c \
+	metadata_object.c \
+	stream_decoder.c \
+	stream_encoder.c \
+	stream_encoder_intrin_sse2.c \
+	stream_encoder_intrin_ssse3.c \
+	stream_encoder_intrin_avx2.c \
+	stream_encoder_framing.c \
+	window.c \
+	$(windows_unicode_compat) \
+	$(extra_ogg_sources)
+
+libFLAC_la_SOURCES = $(libFLAC_sources)
+
+# needed for test_libFLAC
+libFLAC_static_la_SOURCES = $(libFLAC_sources)
+
+.rc.o:
+	$(RC) $(AM_CPPFLAGS) $< $@

extern/flac/src/libFLAC/bitmath.c

@@ -0,0 +1,115 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/bitmath.h"
+
+/* An example of what FLAC__bitmath_silog2() computes:
+ *
+ * silog2(-10) = 5
+ * silog2(- 9) = 5
+ * silog2(- 8) = 4
+ * silog2(- 7) = 4
+ * silog2(- 6) = 4
+ * silog2(- 5) = 4
+ * silog2(- 4) = 3
+ * silog2(- 3) = 3
+ * silog2(- 2) = 2
+ * silog2(- 1) = 2
+ * silog2(  0) = 0
+ * silog2(  1) = 2
+ * silog2(  2) = 3
+ * silog2(  3) = 3
+ * silog2(  4) = 4
+ * silog2(  5) = 4
+ * silog2(  6) = 4
+ * silog2(  7) = 4
+ * silog2(  8) = 5
+ * silog2(  9) = 5
+ * silog2( 10) = 5
+ */
+uint32_t FLAC__bitmath_silog2(FLAC__int64 v)
+{
+	if(v == 0)
+		return 0;
+
+	if(v == -1)
+		return 2;
+
+	v = (v < 0) ? (-(v+1)) : v;
+	return FLAC__bitmath_ilog2_wide(v)+2;
+}
+
+/* An example of what FLAC__bitmath_extra_mulbits_unsigned() computes:
+ *
+ * extra_mulbits_unsigned( 0) = 0
+ * extra_mulbits_unsigned( 1) = 0
+ * extra_mulbits_unsigned( 2) = 1
+ * extra_mulbits_unsigned( 3) = 2
+ * extra_mulbits_unsigned( 4) = 2
+ * extra_mulbits_unsigned( 5) = 3
+ * extra_mulbits_unsigned( 6) = 3
+ * extra_mulbits_unsigned( 7) = 3
+ * extra_mulbits_unsigned( 8) = 3
+ * extra_mulbits_unsigned( 9) = 4
+ * extra_mulbits_unsigned(10) = 4
+ * extra_mulbits_unsigned(11) = 4
+ * extra_mulbits_unsigned(12) = 4
+ * extra_mulbits_unsigned(13) = 4
+ * extra_mulbits_unsigned(14) = 4
+ * extra_mulbits_unsigned(15) = 4
+ * extra_mulbits_unsigned(16) = 4
+ * extra_mulbits_unsigned(17) = 5
+ * extra_mulbits_unsigned(18) = 5
+ *
+ * The intent of this is to calculate how many extra bits multiplication
+ * by a certain number requires. So, if a signal fits in a certain number
+ * of bits (for example 16) than multiplying by a number (for example 1024)
+ * grows that storage requirement (to 26 in this example). In effect this is
+ * is the log2 rounded up.
+ */
+uint32_t FLAC__bitmath_extra_mulbits_unsigned(FLAC__uint32 v)
+{
+	uint32_t ilog2;
+	if(v == 0)
+		return 0;
+	ilog2 = FLAC__bitmath_ilog2(v);
+	if(((v >> ilog2) << ilog2) == v)
+		/* v is power of 2 */
+		return ilog2;
+	else
+		/* v is not a power of 2, return one higher */
+		return ilog2 + 1;
+}

extern/flac/src/libFLAC/bitwriter.c

@@ -0,0 +1,955 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdlib.h>
+#include <string.h>
+#include "private/bitwriter.h"
+#include "private/crc.h"
+#include "private/format.h"
+#include "private/macros.h"
+#include "private/stream_encoder.h"
+#include "FLAC/assert.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+#include "share/endswap.h"
+
+/* Things should be fastest when this matches the machine word size */
+/* WATCHOUT: if you change this you must also change the following #defines down to SWAP_BE_WORD_TO_HOST below to match */
+/* WATCHOUT: there are a few places where the code will not work unless bwword is >= 32 bits wide */
+
+#if (ENABLE_64_BIT_WORDS == 0)
+
+typedef FLAC__uint32 bwword;
+typedef FLAC__uint64 FLAC__bwtemp;
+#define FLAC__BYTES_PER_WORD 4		/* sizeof bwword */
+#define FLAC__BITS_PER_WORD 32
+#define FLAC__TEMP_BITS 64
+#define FLAC__HALF_TEMP_BITS 32
+/* SWAP_BE_WORD_TO_HOST swaps bytes in a bwword (which is always big-endian) if necessary to match host byte order */
+#if WORDS_BIGENDIAN
+#define SWAP_BE_WORD_TO_HOST(x) (x)
+#else
+#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_32(x)
+#endif
+
+#else
+
+typedef FLAC__uint64 bwword;
+typedef FLAC__uint64 FLAC__bwtemp;
+#define FLAC__BYTES_PER_WORD 8		/* sizeof bwword */
+#define FLAC__BITS_PER_WORD 64
+#define FLAC__TEMP_BITS 64
+#define FLAC__HALF_TEMP_BITS 32
+/* SWAP_BE_WORD_TO_HOST swaps bytes in a bwword (which is always big-endian) if necessary to match host byte order */
+#if WORDS_BIGENDIAN
+#define SWAP_BE_WORD_TO_HOST(x) (x)
+#else
+#define SWAP_BE_WORD_TO_HOST(x) ENDSWAP_64(x)
+#endif
+
+#endif
+
+/*
+ * The default capacity here doesn't matter too much.  The buffer always grows
+ * to hold whatever is written to it.  Usually the encoder will stop adding at
+ * a frame or metadata block, then write that out and clear the buffer for the
+ * next one.
+ */
+static const uint32_t FLAC__BITWRITER_DEFAULT_CAPACITY = 32768u / sizeof(bwword); /* size in words */
+/* When growing, increment with 1/4th at a time */
+static const uint32_t FLAC__BITWRITER_DEFAULT_GROW_FRACTION = 2; /* means grow by >> 2 (1/4th) of current size */
+
+#define FLAC__WORDS_TO_BITS(words) ((words) * FLAC__BITS_PER_WORD)
+#define FLAC__TOTAL_BITS(bw) (FLAC__WORDS_TO_BITS((bw)->words) + (bw)->bits)
+
+struct FLAC__BitWriter {
+	bwword *buffer;
+	bwword accum; /* accumulator; bits are right-justified; when full, accum is appended to buffer */
+	uint32_t capacity; /* capacity of buffer in words */
+	uint32_t words; /* # of complete words in buffer */
+	uint32_t bits; /* # of used bits in accum */
+};
+
+/* * WATCHOUT: The current implementation only grows the buffer. */
+#ifndef __SUNPRO_C
+static
+#endif
+FLAC__bool bitwriter_grow_(FLAC__BitWriter *bw, uint32_t bits_to_add)
+{
+	uint32_t new_capacity;
+	bwword *new_buffer;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+
+	/* calculate total words needed to store 'bits_to_add' additional bits */
+	new_capacity = bw->words + ((bw->bits + bits_to_add + FLAC__BITS_PER_WORD - 1) / FLAC__BITS_PER_WORD);
+
+	/* it's possible (due to pessimism in the growth estimation that
+	 * leads to this call) that we don't actually need to grow
+	 */
+	if(bw->capacity >= new_capacity)
+		return true;
+
+	if(new_capacity * sizeof(bwword) > (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
+		/* Requested new capacity is larger than the largest possible metadata block,
+		 * which is also larger than the largest sane framesize. That means something
+		 * went very wrong somewhere and previous checks failed.
+		 * To prevent chrashing, give up */
+		return false;
+
+	/* As reallocation can be quite expensive, grow exponentially */
+	if((new_capacity - bw->capacity) < (bw->capacity >> FLAC__BITWRITER_DEFAULT_GROW_FRACTION))
+		new_capacity = bw->capacity + (bw->capacity >> FLAC__BITWRITER_DEFAULT_GROW_FRACTION);
+
+	/* make sure we got everything right */
+	FLAC__ASSERT(new_capacity > bw->capacity);
+	FLAC__ASSERT(new_capacity >= bw->words + ((bw->bits + bits_to_add + FLAC__BITS_PER_WORD - 1) / FLAC__BITS_PER_WORD));
+
+	new_buffer = safe_realloc_nofree_mul_2op_(bw->buffer, sizeof(bwword), /*times*/new_capacity);
+	if(new_buffer == 0)
+		return false;
+	bw->buffer = new_buffer;
+	bw->capacity = new_capacity;
+	return true;
+}
+
+
+/***********************************************************************
+ *
+ * Class constructor/destructor
+ *
+ ***********************************************************************/
+
+FLAC__BitWriter *FLAC__bitwriter_new(void)
+{
+	FLAC__BitWriter *bw = calloc(1, sizeof(FLAC__BitWriter));
+	/* note that calloc() sets all members to 0 for us */
+	return bw;
+}
+
+void FLAC__bitwriter_delete(FLAC__BitWriter *bw)
+{
+	FLAC__ASSERT(0 != bw);
+
+	FLAC__bitwriter_free(bw);
+	free(bw);
+}
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__bool FLAC__bitwriter_init(FLAC__BitWriter *bw)
+{
+	FLAC__ASSERT(0 != bw);
+
+	bw->words = bw->bits = 0;
+	bw->capacity = FLAC__BITWRITER_DEFAULT_CAPACITY;
+	bw->buffer = malloc(sizeof(bwword) * bw->capacity);
+	if(bw->buffer == 0)
+		return false;
+
+	return true;
+}
+
+void FLAC__bitwriter_free(FLAC__BitWriter *bw)
+{
+	FLAC__ASSERT(0 != bw);
+
+	if(0 != bw->buffer)
+		free(bw->buffer);
+	bw->buffer = 0;
+	bw->capacity = 0;
+	bw->words = bw->bits = 0;
+}
+
+void FLAC__bitwriter_clear(FLAC__BitWriter *bw)
+{
+	bw->words = bw->bits = 0;
+}
+
+FLAC__bool FLAC__bitwriter_get_write_crc16(FLAC__BitWriter *bw, FLAC__uint16 *crc)
+{
+	const FLAC__byte *buffer;
+	size_t bytes;
+
+	FLAC__ASSERT((bw->bits & 7) == 0); /* assert that we're byte-aligned */
+
+	if(!FLAC__bitwriter_get_buffer(bw, &buffer, &bytes))
+		return false;
+
+	*crc = (FLAC__uint16)FLAC__crc16(buffer, bytes);
+	FLAC__bitwriter_release_buffer(bw);
+	return true;
+}
+
+FLAC__bool FLAC__bitwriter_get_write_crc8(FLAC__BitWriter *bw, FLAC__byte *crc)
+{
+	const FLAC__byte *buffer;
+	size_t bytes;
+
+	FLAC__ASSERT((bw->bits & 7) == 0); /* assert that we're byte-aligned */
+
+	if(!FLAC__bitwriter_get_buffer(bw, &buffer, &bytes))
+		return false;
+
+	*crc = FLAC__crc8(buffer, bytes);
+	FLAC__bitwriter_release_buffer(bw);
+	return true;
+}
+
+FLAC__bool FLAC__bitwriter_is_byte_aligned(const FLAC__BitWriter *bw)
+{
+	return ((bw->bits & 7) == 0);
+}
+
+uint32_t FLAC__bitwriter_get_input_bits_unconsumed(const FLAC__BitWriter *bw)
+{
+	return FLAC__TOTAL_BITS(bw);
+}
+
+FLAC__bool FLAC__bitwriter_get_buffer(FLAC__BitWriter *bw, const FLAC__byte **buffer, size_t *bytes)
+{
+	FLAC__ASSERT((bw->bits & 7) == 0);
+	/* double protection */
+	if(bw->bits & 7)
+		return false;
+	/* if we have bits in the accumulator we have to flush those to the buffer first */
+	if(bw->bits) {
+		FLAC__ASSERT(bw->words <= bw->capacity);
+		if(bw->words == bw->capacity && !bitwriter_grow_(bw, FLAC__BITS_PER_WORD))
+			return false;
+		/* append bits as complete word to buffer, but don't change bw->accum or bw->bits */
+		bw->buffer[bw->words] = SWAP_BE_WORD_TO_HOST(bw->accum << (FLAC__BITS_PER_WORD-bw->bits));
+	}
+	/* now we can just return what we have */
+	*buffer = (FLAC__byte*)bw->buffer;
+	*bytes = (FLAC__BYTES_PER_WORD * bw->words) + (bw->bits >> 3);
+	return true;
+}
+
+void FLAC__bitwriter_release_buffer(FLAC__BitWriter *bw)
+{
+	/* nothing to do.  in the future, strict checking of a 'writer-is-in-
+	 * get-mode' flag could be added everywhere and then cleared here
+	 */
+	(void)bw;
+}
+
+inline FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, uint32_t bits)
+{
+	uint32_t n;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+
+	if(bits == 0)
+		return true;
+	/* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+bits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
+	if(bw->capacity <= bw->words + bits && !bitwriter_grow_(bw, bits))
+		return false;
+	/* first part gets to word alignment */
+	if(bw->bits) {
+		n = flac_min(FLAC__BITS_PER_WORD - bw->bits, bits);
+		bw->accum <<= n;
+		bits -= n;
+		bw->bits += n;
+		if(bw->bits == FLAC__BITS_PER_WORD) {
+			bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
+			bw->bits = 0;
+		}
+		else
+			return true;
+	}
+	/* do whole words */
+	while(bits >= FLAC__BITS_PER_WORD) {
+		bw->buffer[bw->words++] = 0;
+		bits -= FLAC__BITS_PER_WORD;
+	}
+	/* do any leftovers */
+	if(bits > 0) {
+		bw->accum = 0;
+		bw->bits = bits;
+	}
+	return true;
+}
+
+static inline FLAC__bool FLAC__bitwriter_write_raw_uint32_nocheck(FLAC__BitWriter *bw, FLAC__uint32 val, uint32_t bits)
+{
+	register uint32_t left;
+
+	/* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
+	FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
+
+	if(bw == 0 || bw->buffer == 0)
+		return false;
+
+	if (bits > 32)
+		return false;
+
+	if(bits == 0)
+		return true;
+
+	FLAC__ASSERT((bits == 32) || (val>>bits == 0));
+
+	/* slightly pessimistic size check but faster than "<= bw->words + (bw->bits+bits+FLAC__BITS_PER_WORD-1)/FLAC__BITS_PER_WORD" */
+	if(bw->capacity <= bw->words + bits && !bitwriter_grow_(bw, bits))
+		return false;
+
+	left = FLAC__BITS_PER_WORD - bw->bits;
+	if(bits < left) {
+		bw->accum <<= bits;
+		bw->accum |= val;
+		bw->bits += bits;
+	}
+	else if(bw->bits) { /* WATCHOUT: if bw->bits == 0, left==FLAC__BITS_PER_WORD and bw->accum<<=left is a NOP instead of setting to 0 */
+		bw->accum <<= left;
+		bw->accum |= val >> (bw->bits = bits - left);
+		bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);
+		bw->accum = val; /* unused top bits can contain garbage */
+	}
+	else { /* at this point bits == FLAC__BITS_PER_WORD == 32  and  bw->bits == 0 */
+		bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST((bwword)val);
+	}
+
+	return true;
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, uint32_t bits)
+{
+	/* check that unused bits are unset */
+	if((bits < 32) && (val>>bits != 0))
+		return false;
+
+	return FLAC__bitwriter_write_raw_uint32_nocheck(bw, val, bits);
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t bits)
+{
+	/* zero-out unused bits */
+	if(bits < 32)
+		val &= (~(0xffffffff << bits));
+
+	return FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)val, bits);
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, uint32_t bits)
+{
+	/* this could be a little faster but it's not used for much */
+	if(bits > 32) {
+		return
+			FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)(val>>32), bits-32) &&
+			FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)val, 32);
+	}
+	else
+		return FLAC__bitwriter_write_raw_uint32(bw, (FLAC__uint32)val, bits);
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_int64(FLAC__BitWriter *bw, FLAC__int64 val, uint32_t bits)
+{
+	FLAC__uint64 uval = val;
+	/* zero-out unused bits */
+	if(bits < 64)
+		uval &= (~(UINT64_MAX << bits));
+	return FLAC__bitwriter_write_raw_uint64(bw, uval, bits);
+}
+
+inline FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val)
+{
+	/* this doesn't need to be that fast as currently it is only used for vorbis comments */
+
+	if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, val & 0xff, 8))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, (val>>8) & 0xff, 8))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, (val>>16) & 0xff, 8))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, val>>24, 8))
+		return false;
+
+	return true;
+}
+
+inline FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], uint32_t nvals)
+{
+	uint32_t i;
+
+	/* grow capacity upfront to prevent constant reallocation during writes */
+	if(bw->capacity <= bw->words + nvals / (FLAC__BITS_PER_WORD / 8) + 1 && !bitwriter_grow_(bw, nvals * 8))
+		return false;
+
+	/* this could be faster but currently we don't need it to be since it's only used for writing metadata */
+	for(i = 0; i < nvals; i++) {
+		if(!FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)(vals[i]), 8))
+			return false;
+	}
+
+	return true;
+}
+
+FLAC__bool FLAC__bitwriter_write_unary_unsigned(FLAC__BitWriter *bw, uint32_t val)
+{
+	if(val < 32)
+		return FLAC__bitwriter_write_raw_uint32_nocheck(bw, 1, ++val);
+	else
+		return
+			FLAC__bitwriter_write_zeroes(bw, val) &&
+			FLAC__bitwriter_write_raw_uint32_nocheck(bw, 1, 1);
+}
+
+#if 0 /* UNUSED */
+uint32_t FLAC__bitwriter_rice_bits(FLAC__int32 val, uint32_t parameter)
+{
+	FLAC__uint32 uval;
+
+	FLAC__ASSERT(parameter < 32);
+
+	/* fold signed to uint32_t; actual formula is: negative(v)? -2v-1 : 2v */
+	uval = val;
+	uval <<= 1;
+	uval ^= (val>>31);
+
+	return 1 + parameter + (uval >> parameter);
+}
+
+uint32_t FLAC__bitwriter_golomb_bits_signed(int val, uint32_t parameter)
+{
+	uint32_t bits, msbs, uval;
+	uint32_t k;
+
+	FLAC__ASSERT(parameter > 0);
+
+	/* fold signed to uint32_t */
+	if(val < 0)
+		uval = (uint32_t)(((-(++val)) << 1) + 1);
+	else
+		uval = (uint32_t)(val << 1);
+
+	k = FLAC__bitmath_ilog2(parameter);
+	if(parameter == 1u<<k) {
+		FLAC__ASSERT(k <= 30);
+
+		msbs = uval >> k;
+		bits = 1 + k + msbs;
+	}
+	else {
+		uint32_t q, r, d;
+
+		d = (1 << (k+1)) - parameter;
+		q = uval / parameter;
+		r = uval - (q * parameter);
+
+		bits = 1 + q + k;
+		if(r >= d)
+			bits++;
+	}
+	return bits;
+}
+
+uint32_t FLAC__bitwriter_golomb_bits_unsigned(uint32_t uval, uint32_t parameter)
+{
+	uint32_t bits, msbs;
+	uint32_t k;
+
+	FLAC__ASSERT(parameter > 0);
+
+	k = FLAC__bitmath_ilog2(parameter);
+	if(parameter == 1u<<k) {
+		FLAC__ASSERT(k <= 30);
+
+		msbs = uval >> k;
+		bits = 1 + k + msbs;
+	}
+	else {
+		uint32_t q, r, d;
+
+		d = (1 << (k+1)) - parameter;
+		q = uval / parameter;
+		r = uval - (q * parameter);
+
+		bits = 1 + q + k;
+		if(r >= d)
+			bits++;
+	}
+	return bits;
+}
+
+FLAC__bool FLAC__bitwriter_write_rice_signed(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t parameter)
+{
+	uint32_t total_bits, interesting_bits, msbs;
+	FLAC__uint32 uval, pattern;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+	FLAC__ASSERT(parameter < 32);
+
+	/* fold signed to uint32_t; actual formula is: negative(v)? -2v-1 : 2v */
+	uval = val;
+	uval <<= 1;
+	uval ^= (val>>31);
+
+	msbs = uval >> parameter;
+	interesting_bits = 1 + parameter;
+	total_bits = interesting_bits + msbs;
+	pattern = 1 << parameter; /* the unary end bit */
+	pattern |= (uval & ((1<<parameter)-1)); /* the binary LSBs */
+
+	if(total_bits <= 32)
+		return FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits);
+	else
+		return
+			FLAC__bitwriter_write_zeroes(bw, msbs) && /* write the unary MSBs */
+			FLAC__bitwriter_write_raw_uint32(bw, pattern, interesting_bits); /* write the unary end bit and binary LSBs */
+}
+#endif /* UNUSED */
+
+#if (ENABLE_64_BIT_WORDS == 0)
+
+#define WIDE_ACCUM_TO_BW {  \
+	bw->accum = wide_accum >> FLAC__HALF_TEMP_BITS;  \
+	bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum); \
+	wide_accum <<= FLAC__HALF_TEMP_BITS;  \
+	bitpointer += FLAC__HALF_TEMP_BITS;  \
+}
+
+#else
+
+#define WIDE_ACCUM_TO_BW {  \
+	FLAC__ASSERT(bw->bits % FLAC__HALF_TEMP_BITS == 0);  \
+	if(bw->bits == 0) {  \
+		bw->accum = wide_accum >> FLAC__HALF_TEMP_BITS;  \
+		wide_accum <<= FLAC__HALF_TEMP_BITS;  \
+		bw->bits = FLAC__HALF_TEMP_BITS;  \
+	}  \
+	else {  \
+		bw->accum <<= FLAC__HALF_TEMP_BITS;  \
+		bw->accum += wide_accum >> FLAC__HALF_TEMP_BITS;  \
+		bw->buffer[bw->words++] = SWAP_BE_WORD_TO_HOST(bw->accum);  \
+		wide_accum <<= FLAC__HALF_TEMP_BITS;  \
+		bw->bits = 0;  \
+	}  \
+	bitpointer += FLAC__HALF_TEMP_BITS;  \
+}
+
+#endif
+
+FLAC__bool FLAC__bitwriter_write_rice_signed_block(FLAC__BitWriter *bw, const FLAC__int32 *vals, uint32_t nvals, uint32_t parameter)
+{
+	const FLAC__uint32 mask1 = (FLAC__uint32)0xffffffff << parameter; /* we val|=mask1 to set the stop bit above it... */
+	const FLAC__uint32 mask2 = (FLAC__uint32)0xffffffff >> (31-parameter); /* ...then mask off the bits above the stop bit with val&=mask2 */
+	FLAC__uint32 uval;
+	const uint32_t lsbits = 1 + parameter;
+	uint32_t msbits, total_bits;
+	FLAC__bwtemp wide_accum = 0;
+	FLAC__uint32 bitpointer = FLAC__TEMP_BITS;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+	FLAC__ASSERT(parameter < 31);
+	/* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
+	FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
+#if (ENABLE_64_BIT_WORDS == 0)
+	if(bw->bits > 0) {
+		bitpointer -= bw->bits;
+		wide_accum = (FLAC__bwtemp)(bw->accum) << bitpointer;
+		bw->bits = 0;
+	}
+#else
+	if(bw->bits > 0 && bw->bits < FLAC__HALF_TEMP_BITS) {
+		bitpointer -= bw->bits;
+		wide_accum = bw->accum << bitpointer;
+		bw->bits = 0;
+	}
+	else if(bw->bits > FLAC__HALF_TEMP_BITS) {
+		bitpointer -= (bw->bits - FLAC__HALF_TEMP_BITS);
+		wide_accum = bw->accum << bitpointer;
+		bw->accum >>= (bw->bits - FLAC__HALF_TEMP_BITS);
+		bw->bits = FLAC__HALF_TEMP_BITS;
+	}
+#endif
+
+	/* Reserve one FLAC__TEMP_BITS per symbol, so checks for space are only necessary when very large symbols are encountered
+	 * this might be considered wasteful, but is only at most 8kB more than necessary for a blocksize of 4096 */
+	if(bw->capacity * FLAC__BITS_PER_WORD <= bw->words * FLAC__BITS_PER_WORD + nvals * FLAC__TEMP_BITS + bw->bits && !bitwriter_grow_(bw, nvals * FLAC__TEMP_BITS))
+		return false;
+
+	while(nvals) {
+		/* fold signed to uint32_t; actual formula is: negative(v)? -2v-1 : 2v */
+		uval = *vals;
+		uval <<= 1;
+		uval ^= (*vals>>31);
+
+		msbits = uval >> parameter;
+		total_bits = lsbits + msbits;
+
+		uval |= mask1; /* set stop bit */
+		uval &= mask2; /* mask off unused top bits */
+
+
+		if(total_bits <= bitpointer) {
+			/* There is room enough to store the symbol whole at once */
+			wide_accum |= (FLAC__bwtemp)(uval) << (bitpointer - total_bits);
+			bitpointer -= total_bits;
+			if(bitpointer <= FLAC__HALF_TEMP_BITS) {
+				/* A word is finished, copy the upper 32 bits of the wide_accum */
+				WIDE_ACCUM_TO_BW
+			}
+		}
+		else {
+			/* The symbol needs to be split. This code isn't used often */
+			/* First check for space in the bitwriter */
+			if(total_bits > FLAC__TEMP_BITS) {
+				FLAC__uint32 oversize_in_bits = total_bits - FLAC__TEMP_BITS;
+				FLAC__uint32 capacity_needed = bw->words * FLAC__BITS_PER_WORD + bw->bits + nvals * FLAC__TEMP_BITS + oversize_in_bits;
+				if(bw->capacity * FLAC__BITS_PER_WORD <= capacity_needed && !bitwriter_grow_(bw, nvals * FLAC__TEMP_BITS + oversize_in_bits))
+					return false;
+			}
+			if(msbits > bitpointer) {
+				/* We have a lot of 0 bits to write, first align with bitwriter word */
+				msbits -= bitpointer - FLAC__HALF_TEMP_BITS;
+				bitpointer = FLAC__HALF_TEMP_BITS;
+				WIDE_ACCUM_TO_BW
+				while(msbits > bitpointer) {
+					/* As the accumulator is already zero, we only need to
+					 * assign zeroes to the bitbuffer */
+					WIDE_ACCUM_TO_BW
+					bitpointer -= FLAC__HALF_TEMP_BITS;
+					msbits -= FLAC__HALF_TEMP_BITS;
+				}
+				/* The remaining bits are zero, and the accumulator already is zero,
+				 * so just subtract the number of bits from bitpointer. When storing,
+				 * we can also just store 0 */
+				bitpointer -= msbits;
+				if(bitpointer <= FLAC__HALF_TEMP_BITS)
+					WIDE_ACCUM_TO_BW
+			}
+			else {
+				bitpointer -= msbits;
+				if(bitpointer <= FLAC__HALF_TEMP_BITS)
+					WIDE_ACCUM_TO_BW
+			}
+			/* The lsbs + stop bit always fit 32 bit, so this code mirrors the code above */
+                        wide_accum |= (FLAC__bwtemp)(uval) << (bitpointer - lsbits);
+                        bitpointer -= lsbits;
+                        if(bitpointer <= FLAC__HALF_TEMP_BITS) {
+                                /* A word is finished, copy the upper 32 bits of the wide_accum */
+                                WIDE_ACCUM_TO_BW
+                        }
+		}
+		vals++;
+		nvals--;
+	}
+	/* Now fixup remainder of wide_accum */
+#if (ENABLE_64_BIT_WORDS == 0)
+	if(bitpointer < FLAC__TEMP_BITS) {
+		bw->accum = wide_accum >> bitpointer;
+		bw->bits = FLAC__TEMP_BITS - bitpointer;
+	}
+#else
+	if(bitpointer < FLAC__TEMP_BITS) {
+		if(bw->bits == 0) {
+			bw->accum = wide_accum >> bitpointer;
+			bw->bits = FLAC__TEMP_BITS - bitpointer;
+		}
+		else if (bw->bits == FLAC__HALF_TEMP_BITS) {
+			bw->accum <<= FLAC__TEMP_BITS - bitpointer;
+			bw->accum |= (wide_accum >> bitpointer);
+			bw->bits = FLAC__HALF_TEMP_BITS + FLAC__TEMP_BITS - bitpointer;
+		}
+		else {
+			FLAC__ASSERT(0);
+		}
+	}
+#endif
+
+
+	return true;
+}
+
+#if 0 /* UNUSED */
+FLAC__bool FLAC__bitwriter_write_golomb_signed(FLAC__BitWriter *bw, int val, uint32_t parameter)
+{
+	uint32_t total_bits, msbs, uval;
+	uint32_t k;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+	FLAC__ASSERT(parameter > 0);
+
+	/* fold signed to uint32_t */
+	if(val < 0)
+		uval = (uint32_t)(((-(++val)) << 1) + 1);
+	else
+		uval = (uint32_t)(val << 1);
+
+	k = FLAC__bitmath_ilog2(parameter);
+	if(parameter == 1u<<k) {
+		uint32_t pattern;
+
+		FLAC__ASSERT(k <= 30);
+
+		msbs = uval >> k;
+		total_bits = 1 + k + msbs;
+		pattern = 1 << k; /* the unary end bit */
+		pattern |= (uval & ((1u<<k)-1)); /* the binary LSBs */
+
+		if(total_bits <= 32) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits))
+				return false;
+		}
+		else {
+			/* write the unary MSBs */
+			if(!FLAC__bitwriter_write_zeroes(bw, msbs))
+				return false;
+			/* write the unary end bit and binary LSBs */
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, k+1))
+				return false;
+		}
+	}
+	else {
+		uint32_t q, r, d;
+
+		d = (1 << (k+1)) - parameter;
+		q = uval / parameter;
+		r = uval - (q * parameter);
+		/* write the unary MSBs */
+		if(!FLAC__bitwriter_write_zeroes(bw, q))
+			return false;
+		/* write the unary end bit */
+		if(!FLAC__bitwriter_write_raw_uint32(bw, 1, 1))
+			return false;
+		/* write the binary LSBs */
+		if(r >= d) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, r+d, k+1))
+				return false;
+		}
+		else {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, r, k))
+				return false;
+		}
+	}
+	return true;
+}
+
+FLAC__bool FLAC__bitwriter_write_golomb_unsigned(FLAC__BitWriter *bw, uint32_t uval, uint32_t parameter)
+{
+	uint32_t total_bits, msbs;
+	uint32_t k;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+	FLAC__ASSERT(parameter > 0);
+
+	k = FLAC__bitmath_ilog2(parameter);
+	if(parameter == 1u<<k) {
+		uint32_t pattern;
+
+		FLAC__ASSERT(k <= 30);
+
+		msbs = uval >> k;
+		total_bits = 1 + k + msbs;
+		pattern = 1 << k; /* the unary end bit */
+		pattern |= (uval & ((1u<<k)-1)); /* the binary LSBs */
+
+		if(total_bits <= 32) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, total_bits))
+				return false;
+		}
+		else {
+			/* write the unary MSBs */
+			if(!FLAC__bitwriter_write_zeroes(bw, msbs))
+				return false;
+			/* write the unary end bit and binary LSBs */
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pattern, k+1))
+				return false;
+		}
+	}
+	else {
+		uint32_t q, r, d;
+
+		d = (1 << (k+1)) - parameter;
+		q = uval / parameter;
+		r = uval - (q * parameter);
+		/* write the unary MSBs */
+		if(!FLAC__bitwriter_write_zeroes(bw, q))
+			return false;
+		/* write the unary end bit */
+		if(!FLAC__bitwriter_write_raw_uint32(bw, 1, 1))
+			return false;
+		/* write the binary LSBs */
+		if(r >= d) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, r+d, k+1))
+				return false;
+		}
+		else {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, r, k))
+				return false;
+		}
+	}
+	return true;
+}
+#endif /* UNUSED */
+
+FLAC__bool FLAC__bitwriter_write_utf8_uint32(FLAC__BitWriter *bw, FLAC__uint32 val)
+{
+	FLAC__bool ok = 1;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+
+	if((val & 0x80000000) != 0) /* this version only handles 31 bits */
+		return false;
+
+	if(val < 0x80) {
+		return FLAC__bitwriter_write_raw_uint32_nocheck(bw, val, 8);
+	}
+	else if(val < 0x800) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xC0 | (val>>6), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+	else if(val < 0x10000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xE0 | (val>>12), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+	else if(val < 0x200000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF0 | (val>>18), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+	else if(val < 0x4000000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF8 | (val>>24), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+	else {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xFC | (val>>30), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>24)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | ((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (val&0x3F), 8);
+	}
+
+	return ok;
+}
+
+FLAC__bool FLAC__bitwriter_write_utf8_uint64(FLAC__BitWriter *bw, FLAC__uint64 val)
+{
+	FLAC__bool ok = 1;
+
+	FLAC__ASSERT(0 != bw);
+	FLAC__ASSERT(0 != bw->buffer);
+
+	if((val & FLAC__U64L(0xFFFFFFF000000000)) != 0) /* this version only handles 36 bits */
+		return false;
+
+	if(val < 0x80) {
+		return FLAC__bitwriter_write_raw_uint32_nocheck(bw, (FLAC__uint32)val, 8);
+	}
+	else if(val < 0x800) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xC0 | (FLAC__uint32)(val>>6), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else if(val < 0x10000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xE0 | (FLAC__uint32)(val>>12), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else if(val < 0x200000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF0 | (FLAC__uint32)(val>>18), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else if(val < 0x4000000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xF8 | (FLAC__uint32)(val>>24), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else if(val < 0x80000000) {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xFC | (FLAC__uint32)(val>>30), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>24)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+	else {
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0xFE, 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>30)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>24)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>18)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>12)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)((val>>6)&0x3F), 8);
+		ok &= FLAC__bitwriter_write_raw_uint32_nocheck(bw, 0x80 | (FLAC__uint32)(val&0x3F), 8);
+	}
+
+	return ok;
+}
+
+FLAC__bool FLAC__bitwriter_zero_pad_to_byte_boundary(FLAC__BitWriter *bw)
+{
+	/* 0-pad to byte boundary */
+	if(bw->bits & 7u)
+		return FLAC__bitwriter_write_zeroes(bw, 8 - (bw->bits & 7u));
+	else
+		return true;
+}
+
+/* These functions are declared inline in this file but are also callable as
+ * externs from elsewhere.
+ * According to the C99 spec, section 6.7.4, simply providing a function
+ * prototype in a header file without 'inline' and making the function inline
+ * in this file should be sufficient.
+ * Unfortunately, the Microsoft VS compiler doesn't pick them up externally. To
+ * fix that we add extern declarations here.
+ */
+extern FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_int64(FLAC__BitWriter *bw, FLAC__int64 val, uint32_t bits);
+extern FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val);
+extern FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], uint32_t nvals);

extern/flac/src/libFLAC/cpu.c

@@ -0,0 +1,223 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+#include "share/compat.h"
+#include <stdlib.h>
+#include <string.h>
+
+#if defined _MSC_VER
+#include <intrin.h> /* for __cpuid() and _xgetbv() */
+#elif defined __GNUC__ && defined HAVE_CPUID_H
+#include <cpuid.h> /* for __get_cpuid() and __get_cpuid_max() */
+#endif
+
+#if defined(HAVE_SYS_AUXV_H)
+#include <sys/auxv.h>
+#endif
+
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN && !defined FLAC__NO_ASM
+
+/* these are flags in EDX of CPUID AX=00000001 */
+static const uint32_t FLAC__CPUINFO_X86_CPUID_CMOV    = 0x00008000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_MMX     = 0x00800000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE     = 0x02000000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE2    = 0x04000000;
+
+/* these are flags in ECX of CPUID AX=00000001 */
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE3    = 0x00000001;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSSE3   = 0x00000200;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE41   = 0x00080000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_SSE42   = 0x00100000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_OSXSAVE = 0x08000000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_AVX     = 0x10000000;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_FMA     = 0x00001000;
+
+/* these are flags in EBX of CPUID AX=00000007 */
+static const uint32_t FLAC__CPUINFO_X86_CPUID_AVX2    = 0x00000020;
+static const uint32_t FLAC__CPUINFO_X86_CPUID_BMI2    = 0x00000100;
+
+static uint32_t
+cpu_xgetbv_x86(void)
+{
+#if (defined _MSC_VER || defined __INTEL_COMPILER) && FLAC__AVX_SUPPORTED
+	return (uint32_t)_xgetbv(0);
+#elif defined __GNUC__
+	uint32_t lo, hi;
+	__asm__ volatile (".byte 0x0f, 0x01, 0xd0" : "=a"(lo), "=d"(hi) : "c" (0));
+	return lo;
+#else
+	return 0;
+#endif
+}
+
+static uint32_t
+cpu_have_cpuid(void)
+{
+#if defined FLAC__CPU_X86_64 || defined __i686__ || defined __SSE__ || (defined _M_IX86_FP && _M_IX86_FP > 0)
+	/* target CPU does have CPUID instruction */
+	return 1;
+#elif defined __GNUC__ && defined HAVE_CPUID_H
+	if (__get_cpuid_max(0, 0) != 0)
+		return 1;
+	else
+		return 0;
+#elif defined _MSC_VER
+	FLAC__uint32 flags1, flags2;
+	__asm {
+		pushfd
+		pushfd
+		pop		eax
+		mov		flags1, eax
+		xor		eax, 0x200000
+		push	eax
+		popfd
+		pushfd
+		pop		eax
+		mov		flags2, eax
+		popfd
+	}
+	if (((flags1^flags2) & 0x200000) != 0)
+		return 1;
+	else
+		return 0;
+#else
+	return 0;
+#endif
+}
+
+static void
+cpuinfo_x86(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx)
+{
+#if defined _MSC_VER
+	int cpuinfo[4];
+	int ext = level & 0x80000000;
+	__cpuid(cpuinfo, ext);
+	if ((uint32_t)cpuinfo[0] >= level) {
+#if FLAC__AVX_SUPPORTED
+		__cpuidex(cpuinfo, level, 0); /* for AVX2 detection */
+#else
+		__cpuid(cpuinfo, level); /* some old compilers don't support __cpuidex */
+#endif
+		*eax = cpuinfo[0]; *ebx = cpuinfo[1]; *ecx = cpuinfo[2]; *edx = cpuinfo[3];
+		return;
+	}
+#elif defined __GNUC__ && defined HAVE_CPUID_H
+	FLAC__uint32 ext = level & 0x80000000;
+	__cpuid(ext, *eax, *ebx, *ecx, *edx);
+	if (*eax >= level) {
+		__cpuid_count(level, 0, *eax, *ebx, *ecx, *edx);
+		return;
+	}
+#endif
+	*eax = *ebx = *ecx = *edx = 0;
+}
+
+#endif
+
+static void
+x86_cpu_info (FLAC__CPUInfo *info)
+{
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN && !defined FLAC__NO_ASM
+	FLAC__bool x86_osxsave = false;
+	FLAC__bool os_avx = false;
+	FLAC__uint32 flags_eax, flags_ebx, flags_ecx, flags_edx;
+
+	info->use_asm = true; /* we assume a minimum of 80386 */
+	if (!cpu_have_cpuid())
+		return;
+
+	cpuinfo_x86(0, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
+	info->x86.intel = (flags_ebx == 0x756E6547 && flags_edx == 0x49656E69 && flags_ecx == 0x6C65746E) ? true : false; /* GenuineIntel */
+	cpuinfo_x86(1, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
+
+	info->x86.cmov  = (flags_edx & FLAC__CPUINFO_X86_CPUID_CMOV ) ? true : false;
+	info->x86.mmx   = (flags_edx & FLAC__CPUINFO_X86_CPUID_MMX  ) ? true : false;
+	info->x86.sse   = (flags_edx & FLAC__CPUINFO_X86_CPUID_SSE  ) ? true : false;
+	info->x86.sse2  = (flags_edx & FLAC__CPUINFO_X86_CPUID_SSE2 ) ? true : false;
+	info->x86.sse3  = (flags_ecx & FLAC__CPUINFO_X86_CPUID_SSE3 ) ? true : false;
+	info->x86.ssse3 = (flags_ecx & FLAC__CPUINFO_X86_CPUID_SSSE3) ? true : false;
+	info->x86.sse41 = (flags_ecx & FLAC__CPUINFO_X86_CPUID_SSE41) ? true : false;
+	info->x86.sse42 = (flags_ecx & FLAC__CPUINFO_X86_CPUID_SSE42) ? true : false;
+
+	if (FLAC__AVX_SUPPORTED) {
+		x86_osxsave     = (flags_ecx & FLAC__CPUINFO_X86_CPUID_OSXSAVE) ? true : false;
+		info->x86.avx   = (flags_ecx & FLAC__CPUINFO_X86_CPUID_AVX    ) ? true : false;
+		info->x86.fma   = (flags_ecx & FLAC__CPUINFO_X86_CPUID_FMA    ) ? true : false;
+		cpuinfo_x86(7, &flags_eax, &flags_ebx, &flags_ecx, &flags_edx);
+		info->x86.avx2  = (flags_ebx & FLAC__CPUINFO_X86_CPUID_AVX2   ) ? true : false;
+		info->x86.bmi2  = (flags_ebx & FLAC__CPUINFO_X86_CPUID_BMI2   ) ? true : false;
+	}
+
+	/*
+	 * now have to check for OS support of AVX instructions
+	 */
+	if (FLAC__AVX_SUPPORTED && info->x86.avx && x86_osxsave && (cpu_xgetbv_x86() & 0x6) == 0x6) {
+		os_avx = true;
+	}
+	if (!os_avx) {
+		/* no OS AVX support */
+		info->x86.avx     = false;
+		info->x86.avx2    = false;
+		info->x86.fma     = false;
+	}
+#else
+	info->use_asm = false;
+#endif
+}
+
+void FLAC__cpu_info (FLAC__CPUInfo *info)
+{
+	memset(info, 0, sizeof(*info));
+
+#ifdef FLAC__CPU_IA32
+	info->type = FLAC__CPUINFO_TYPE_IA32;
+#elif defined FLAC__CPU_X86_64
+	info->type = FLAC__CPUINFO_TYPE_X86_64;
+#else
+	info->type = FLAC__CPUINFO_TYPE_UNKNOWN;
+#endif
+
+	switch (info->type) {
+	case FLAC__CPUINFO_TYPE_IA32: /* fallthrough */
+	case FLAC__CPUINFO_TYPE_X86_64:
+		x86_cpu_info (info);
+		break;
+	default:
+		info->use_asm = false;
+		break;
+	}
+}

extern/flac/src/libFLAC/crc.c

@@ -0,0 +1,436 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/crc.h"
+
+/* CRC-8, poly = x^8 + x^2 + x^1 + x^0, init = 0 */
+
+FLAC__uint8 const FLAC__crc8_table[256] = {
+	0x00, 0x07, 0x0E, 0x09, 0x1C, 0x1B, 0x12, 0x15,
+	0x38, 0x3F, 0x36, 0x31, 0x24, 0x23, 0x2A, 0x2D,
+	0x70, 0x77, 0x7E, 0x79, 0x6C, 0x6B, 0x62, 0x65,
+	0x48, 0x4F, 0x46, 0x41, 0x54, 0x53, 0x5A, 0x5D,
+	0xE0, 0xE7, 0xEE, 0xE9, 0xFC, 0xFB, 0xF2, 0xF5,
+	0xD8, 0xDF, 0xD6, 0xD1, 0xC4, 0xC3, 0xCA, 0xCD,
+	0x90, 0x97, 0x9E, 0x99, 0x8C, 0x8B, 0x82, 0x85,
+	0xA8, 0xAF, 0xA6, 0xA1, 0xB4, 0xB3, 0xBA, 0xBD,
+	0xC7, 0xC0, 0xC9, 0xCE, 0xDB, 0xDC, 0xD5, 0xD2,
+	0xFF, 0xF8, 0xF1, 0xF6, 0xE3, 0xE4, 0xED, 0xEA,
+	0xB7, 0xB0, 0xB9, 0xBE, 0xAB, 0xAC, 0xA5, 0xA2,
+	0x8F, 0x88, 0x81, 0x86, 0x93, 0x94, 0x9D, 0x9A,
+	0x27, 0x20, 0x29, 0x2E, 0x3B, 0x3C, 0x35, 0x32,
+	0x1F, 0x18, 0x11, 0x16, 0x03, 0x04, 0x0D, 0x0A,
+	0x57, 0x50, 0x59, 0x5E, 0x4B, 0x4C, 0x45, 0x42,
+	0x6F, 0x68, 0x61, 0x66, 0x73, 0x74, 0x7D, 0x7A,
+	0x89, 0x8E, 0x87, 0x80, 0x95, 0x92, 0x9B, 0x9C,
+	0xB1, 0xB6, 0xBF, 0xB8, 0xAD, 0xAA, 0xA3, 0xA4,
+	0xF9, 0xFE, 0xF7, 0xF0, 0xE5, 0xE2, 0xEB, 0xEC,
+	0xC1, 0xC6, 0xCF, 0xC8, 0xDD, 0xDA, 0xD3, 0xD4,
+	0x69, 0x6E, 0x67, 0x60, 0x75, 0x72, 0x7B, 0x7C,
+	0x51, 0x56, 0x5F, 0x58, 0x4D, 0x4A, 0x43, 0x44,
+	0x19, 0x1E, 0x17, 0x10, 0x05, 0x02, 0x0B, 0x0C,
+	0x21, 0x26, 0x2F, 0x28, 0x3D, 0x3A, 0x33, 0x34,
+	0x4E, 0x49, 0x40, 0x47, 0x52, 0x55, 0x5C, 0x5B,
+	0x76, 0x71, 0x78, 0x7F, 0x6A, 0x6D, 0x64, 0x63,
+	0x3E, 0x39, 0x30, 0x37, 0x22, 0x25, 0x2C, 0x2B,
+	0x06, 0x01, 0x08, 0x0F, 0x1A, 0x1D, 0x14, 0x13,
+	0xAE, 0xA9, 0xA0, 0xA7, 0xB2, 0xB5, 0xBC, 0xBB,
+	0x96, 0x91, 0x98, 0x9F, 0x8A, 0x8D, 0x84, 0x83,
+	0xDE, 0xD9, 0xD0, 0xD7, 0xC2, 0xC5, 0xCC, 0xCB,
+	0xE6, 0xE1, 0xE8, 0xEF, 0xFA, 0xFD, 0xF4, 0xF3
+};
+
+/* CRC-16, poly = x^16 + x^15 + x^2 + x^0, init = 0 */
+
+FLAC__uint16 const FLAC__crc16_table[8][256] = {
+  { 0x0000,  0x8005,  0x800f,  0x000a,  0x801b,  0x001e,  0x0014,  0x8011,
+	0x8033,  0x0036,  0x003c,  0x8039,  0x0028,  0x802d,  0x8027,  0x0022,
+	0x8063,  0x0066,  0x006c,  0x8069,  0x0078,  0x807d,  0x8077,  0x0072,
+	0x0050,  0x8055,  0x805f,  0x005a,  0x804b,  0x004e,  0x0044,  0x8041,
+	0x80c3,  0x00c6,  0x00cc,  0x80c9,  0x00d8,  0x80dd,  0x80d7,  0x00d2,
+	0x00f0,  0x80f5,  0x80ff,  0x00fa,  0x80eb,  0x00ee,  0x00e4,  0x80e1,
+	0x00a0,  0x80a5,  0x80af,  0x00aa,  0x80bb,  0x00be,  0x00b4,  0x80b1,
+	0x8093,  0x0096,  0x009c,  0x8099,  0x0088,  0x808d,  0x8087,  0x0082,
+	0x8183,  0x0186,  0x018c,  0x8189,  0x0198,  0x819d,  0x8197,  0x0192,
+	0x01b0,  0x81b5,  0x81bf,  0x01ba,  0x81ab,  0x01ae,  0x01a4,  0x81a1,
+	0x01e0,  0x81e5,  0x81ef,  0x01ea,  0x81fb,  0x01fe,  0x01f4,  0x81f1,
+	0x81d3,  0x01d6,  0x01dc,  0x81d9,  0x01c8,  0x81cd,  0x81c7,  0x01c2,
+	0x0140,  0x8145,  0x814f,  0x014a,  0x815b,  0x015e,  0x0154,  0x8151,
+	0x8173,  0x0176,  0x017c,  0x8179,  0x0168,  0x816d,  0x8167,  0x0162,
+	0x8123,  0x0126,  0x012c,  0x8129,  0x0138,  0x813d,  0x8137,  0x0132,
+	0x0110,  0x8115,  0x811f,  0x011a,  0x810b,  0x010e,  0x0104,  0x8101,
+	0x8303,  0x0306,  0x030c,  0x8309,  0x0318,  0x831d,  0x8317,  0x0312,
+	0x0330,  0x8335,  0x833f,  0x033a,  0x832b,  0x032e,  0x0324,  0x8321,
+	0x0360,  0x8365,  0x836f,  0x036a,  0x837b,  0x037e,  0x0374,  0x8371,
+	0x8353,  0x0356,  0x035c,  0x8359,  0x0348,  0x834d,  0x8347,  0x0342,
+	0x03c0,  0x83c5,  0x83cf,  0x03ca,  0x83db,  0x03de,  0x03d4,  0x83d1,
+	0x83f3,  0x03f6,  0x03fc,  0x83f9,  0x03e8,  0x83ed,  0x83e7,  0x03e2,
+	0x83a3,  0x03a6,  0x03ac,  0x83a9,  0x03b8,  0x83bd,  0x83b7,  0x03b2,
+	0x0390,  0x8395,  0x839f,  0x039a,  0x838b,  0x038e,  0x0384,  0x8381,
+	0x0280,  0x8285,  0x828f,  0x028a,  0x829b,  0x029e,  0x0294,  0x8291,
+	0x82b3,  0x02b6,  0x02bc,  0x82b9,  0x02a8,  0x82ad,  0x82a7,  0x02a2,
+	0x82e3,  0x02e6,  0x02ec,  0x82e9,  0x02f8,  0x82fd,  0x82f7,  0x02f2,
+	0x02d0,  0x82d5,  0x82df,  0x02da,  0x82cb,  0x02ce,  0x02c4,  0x82c1,
+	0x8243,  0x0246,  0x024c,  0x8249,  0x0258,  0x825d,  0x8257,  0x0252,
+	0x0270,  0x8275,  0x827f,  0x027a,  0x826b,  0x026e,  0x0264,  0x8261,
+	0x0220,  0x8225,  0x822f,  0x022a,  0x823b,  0x023e,  0x0234,  0x8231,
+	0x8213,  0x0216,  0x021c,  0x8219,  0x0208,  0x820d,  0x8207,  0x0202 },
+
+  { 0x0000,  0x8603,  0x8c03,  0x0a00,  0x9803,  0x1e00,  0x1400,  0x9203,
+	0xb003,  0x3600,  0x3c00,  0xba03,  0x2800,  0xae03,  0xa403,  0x2200,
+	0xe003,  0x6600,  0x6c00,  0xea03,  0x7800,  0xfe03,  0xf403,  0x7200,
+	0x5000,  0xd603,  0xdc03,  0x5a00,  0xc803,  0x4e00,  0x4400,  0xc203,
+	0x4003,  0xc600,  0xcc00,  0x4a03,  0xd800,  0x5e03,  0x5403,  0xd200,
+	0xf000,  0x7603,  0x7c03,  0xfa00,  0x6803,  0xee00,  0xe400,  0x6203,
+	0xa000,  0x2603,  0x2c03,  0xaa00,  0x3803,  0xbe00,  0xb400,  0x3203,
+	0x1003,  0x9600,  0x9c00,  0x1a03,  0x8800,  0x0e03,  0x0403,  0x8200,
+	0x8006,  0x0605,  0x0c05,  0x8a06,  0x1805,  0x9e06,  0x9406,  0x1205,
+	0x3005,  0xb606,  0xbc06,  0x3a05,  0xa806,  0x2e05,  0x2405,  0xa206,
+	0x6005,  0xe606,  0xec06,  0x6a05,  0xf806,  0x7e05,  0x7405,  0xf206,
+	0xd006,  0x5605,  0x5c05,  0xda06,  0x4805,  0xce06,  0xc406,  0x4205,
+	0xc005,  0x4606,  0x4c06,  0xca05,  0x5806,  0xde05,  0xd405,  0x5206,
+	0x7006,  0xf605,  0xfc05,  0x7a06,  0xe805,  0x6e06,  0x6406,  0xe205,
+	0x2006,  0xa605,  0xac05,  0x2a06,  0xb805,  0x3e06,  0x3406,  0xb205,
+	0x9005,  0x1606,  0x1c06,  0x9a05,  0x0806,  0x8e05,  0x8405,  0x0206,
+	0x8009,  0x060a,  0x0c0a,  0x8a09,  0x180a,  0x9e09,  0x9409,  0x120a,
+	0x300a,  0xb609,  0xbc09,  0x3a0a,  0xa809,  0x2e0a,  0x240a,  0xa209,
+	0x600a,  0xe609,  0xec09,  0x6a0a,  0xf809,  0x7e0a,  0x740a,  0xf209,
+	0xd009,  0x560a,  0x5c0a,  0xda09,  0x480a,  0xce09,  0xc409,  0x420a,
+	0xc00a,  0x4609,  0x4c09,  0xca0a,  0x5809,  0xde0a,  0xd40a,  0x5209,
+	0x7009,  0xf60a,  0xfc0a,  0x7a09,  0xe80a,  0x6e09,  0x6409,  0xe20a,
+	0x2009,  0xa60a,  0xac0a,  0x2a09,  0xb80a,  0x3e09,  0x3409,  0xb20a,
+	0x900a,  0x1609,  0x1c09,  0x9a0a,  0x0809,  0x8e0a,  0x840a,  0x0209,
+	0x000f,  0x860c,  0x8c0c,  0x0a0f,  0x980c,  0x1e0f,  0x140f,  0x920c,
+	0xb00c,  0x360f,  0x3c0f,  0xba0c,  0x280f,  0xae0c,  0xa40c,  0x220f,
+	0xe00c,  0x660f,  0x6c0f,  0xea0c,  0x780f,  0xfe0c,  0xf40c,  0x720f,
+	0x500f,  0xd60c,  0xdc0c,  0x5a0f,  0xc80c,  0x4e0f,  0x440f,  0xc20c,
+	0x400c,  0xc60f,  0xcc0f,  0x4a0c,  0xd80f,  0x5e0c,  0x540c,  0xd20f,
+	0xf00f,  0x760c,  0x7c0c,  0xfa0f,  0x680c,  0xee0f,  0xe40f,  0x620c,
+	0xa00f,  0x260c,  0x2c0c,  0xaa0f,  0x380c,  0xbe0f,  0xb40f,  0x320c,
+	0x100c,  0x960f,  0x9c0f,  0x1a0c,  0x880f,  0x0e0c,  0x040c,  0x820f },
+
+  { 0x0000,  0x8017,  0x802b,  0x003c,  0x8053,  0x0044,  0x0078,  0x806f,
+	0x80a3,  0x00b4,  0x0088,  0x809f,  0x00f0,  0x80e7,  0x80db,  0x00cc,
+	0x8143,  0x0154,  0x0168,  0x817f,  0x0110,  0x8107,  0x813b,  0x012c,
+	0x01e0,  0x81f7,  0x81cb,  0x01dc,  0x81b3,  0x01a4,  0x0198,  0x818f,
+	0x8283,  0x0294,  0x02a8,  0x82bf,  0x02d0,  0x82c7,  0x82fb,  0x02ec,
+	0x0220,  0x8237,  0x820b,  0x021c,  0x8273,  0x0264,  0x0258,  0x824f,
+	0x03c0,  0x83d7,  0x83eb,  0x03fc,  0x8393,  0x0384,  0x03b8,  0x83af,
+	0x8363,  0x0374,  0x0348,  0x835f,  0x0330,  0x8327,  0x831b,  0x030c,
+	0x8503,  0x0514,  0x0528,  0x853f,  0x0550,  0x8547,  0x857b,  0x056c,
+	0x05a0,  0x85b7,  0x858b,  0x059c,  0x85f3,  0x05e4,  0x05d8,  0x85cf,
+	0x0440,  0x8457,  0x846b,  0x047c,  0x8413,  0x0404,  0x0438,  0x842f,
+	0x84e3,  0x04f4,  0x04c8,  0x84df,  0x04b0,  0x84a7,  0x849b,  0x048c,
+	0x0780,  0x8797,  0x87ab,  0x07bc,  0x87d3,  0x07c4,  0x07f8,  0x87ef,
+	0x8723,  0x0734,  0x0708,  0x871f,  0x0770,  0x8767,  0x875b,  0x074c,
+	0x86c3,  0x06d4,  0x06e8,  0x86ff,  0x0690,  0x8687,  0x86bb,  0x06ac,
+	0x0660,  0x8677,  0x864b,  0x065c,  0x8633,  0x0624,  0x0618,  0x860f,
+	0x8a03,  0x0a14,  0x0a28,  0x8a3f,  0x0a50,  0x8a47,  0x8a7b,  0x0a6c,
+	0x0aa0,  0x8ab7,  0x8a8b,  0x0a9c,  0x8af3,  0x0ae4,  0x0ad8,  0x8acf,
+	0x0b40,  0x8b57,  0x8b6b,  0x0b7c,  0x8b13,  0x0b04,  0x0b38,  0x8b2f,
+	0x8be3,  0x0bf4,  0x0bc8,  0x8bdf,  0x0bb0,  0x8ba7,  0x8b9b,  0x0b8c,
+	0x0880,  0x8897,  0x88ab,  0x08bc,  0x88d3,  0x08c4,  0x08f8,  0x88ef,
+	0x8823,  0x0834,  0x0808,  0x881f,  0x0870,  0x8867,  0x885b,  0x084c,
+	0x89c3,  0x09d4,  0x09e8,  0x89ff,  0x0990,  0x8987,  0x89bb,  0x09ac,
+	0x0960,  0x8977,  0x894b,  0x095c,  0x8933,  0x0924,  0x0918,  0x890f,
+	0x0f00,  0x8f17,  0x8f2b,  0x0f3c,  0x8f53,  0x0f44,  0x0f78,  0x8f6f,
+	0x8fa3,  0x0fb4,  0x0f88,  0x8f9f,  0x0ff0,  0x8fe7,  0x8fdb,  0x0fcc,
+	0x8e43,  0x0e54,  0x0e68,  0x8e7f,  0x0e10,  0x8e07,  0x8e3b,  0x0e2c,
+	0x0ee0,  0x8ef7,  0x8ecb,  0x0edc,  0x8eb3,  0x0ea4,  0x0e98,  0x8e8f,
+	0x8d83,  0x0d94,  0x0da8,  0x8dbf,  0x0dd0,  0x8dc7,  0x8dfb,  0x0dec,
+	0x0d20,  0x8d37,  0x8d0b,  0x0d1c,  0x8d73,  0x0d64,  0x0d58,  0x8d4f,
+	0x0cc0,  0x8cd7,  0x8ceb,  0x0cfc,  0x8c93,  0x0c84,  0x0cb8,  0x8caf,
+	0x8c63,  0x0c74,  0x0c48,  0x8c5f,  0x0c30,  0x8c27,  0x8c1b,  0x0c0c },
+
+  { 0x0000,  0x9403,  0xa803,  0x3c00,  0xd003,  0x4400,  0x7800,  0xec03,
+	0x2003,  0xb400,  0x8800,  0x1c03,  0xf000,  0x6403,  0x5803,  0xcc00,
+	0x4006,  0xd405,  0xe805,  0x7c06,  0x9005,  0x0406,  0x3806,  0xac05,
+	0x6005,  0xf406,  0xc806,  0x5c05,  0xb006,  0x2405,  0x1805,  0x8c06,
+	0x800c,  0x140f,  0x280f,  0xbc0c,  0x500f,  0xc40c,  0xf80c,  0x6c0f,
+	0xa00f,  0x340c,  0x080c,  0x9c0f,  0x700c,  0xe40f,  0xd80f,  0x4c0c,
+	0xc00a,  0x5409,  0x6809,  0xfc0a,  0x1009,  0x840a,  0xb80a,  0x2c09,
+	0xe009,  0x740a,  0x480a,  0xdc09,  0x300a,  0xa409,  0x9809,  0x0c0a,
+	0x801d,  0x141e,  0x281e,  0xbc1d,  0x501e,  0xc41d,  0xf81d,  0x6c1e,
+	0xa01e,  0x341d,  0x081d,  0x9c1e,  0x701d,  0xe41e,  0xd81e,  0x4c1d,
+	0xc01b,  0x5418,  0x6818,  0xfc1b,  0x1018,  0x841b,  0xb81b,  0x2c18,
+	0xe018,  0x741b,  0x481b,  0xdc18,  0x301b,  0xa418,  0x9818,  0x0c1b,
+	0x0011,  0x9412,  0xa812,  0x3c11,  0xd012,  0x4411,  0x7811,  0xec12,
+	0x2012,  0xb411,  0x8811,  0x1c12,  0xf011,  0x6412,  0x5812,  0xcc11,
+	0x4017,  0xd414,  0xe814,  0x7c17,  0x9014,  0x0417,  0x3817,  0xac14,
+	0x6014,  0xf417,  0xc817,  0x5c14,  0xb017,  0x2414,  0x1814,  0x8c17,
+	0x803f,  0x143c,  0x283c,  0xbc3f,  0x503c,  0xc43f,  0xf83f,  0x6c3c,
+	0xa03c,  0x343f,  0x083f,  0x9c3c,  0x703f,  0xe43c,  0xd83c,  0x4c3f,
+	0xc039,  0x543a,  0x683a,  0xfc39,  0x103a,  0x8439,  0xb839,  0x2c3a,
+	0xe03a,  0x7439,  0x4839,  0xdc3a,  0x3039,  0xa43a,  0x983a,  0x0c39,
+	0x0033,  0x9430,  0xa830,  0x3c33,  0xd030,  0x4433,  0x7833,  0xec30,
+	0x2030,  0xb433,  0x8833,  0x1c30,  0xf033,  0x6430,  0x5830,  0xcc33,
+	0x4035,  0xd436,  0xe836,  0x7c35,  0x9036,  0x0435,  0x3835,  0xac36,
+	0x6036,  0xf435,  0xc835,  0x5c36,  0xb035,  0x2436,  0x1836,  0x8c35,
+	0x0022,  0x9421,  0xa821,  0x3c22,  0xd021,  0x4422,  0x7822,  0xec21,
+	0x2021,  0xb422,  0x8822,  0x1c21,  0xf022,  0x6421,  0x5821,  0xcc22,
+	0x4024,  0xd427,  0xe827,  0x7c24,  0x9027,  0x0424,  0x3824,  0xac27,
+	0x6027,  0xf424,  0xc824,  0x5c27,  0xb024,  0x2427,  0x1827,  0x8c24,
+	0x802e,  0x142d,  0x282d,  0xbc2e,  0x502d,  0xc42e,  0xf82e,  0x6c2d,
+	0xa02d,  0x342e,  0x082e,  0x9c2d,  0x702e,  0xe42d,  0xd82d,  0x4c2e,
+	0xc028,  0x542b,  0x682b,  0xfc28,  0x102b,  0x8428,  0xb828,  0x2c2b,
+	0xe02b,  0x7428,  0x4828,  0xdc2b,  0x3028,  0xa42b,  0x982b,  0x0c28 },
+
+  { 0x0000,  0x807b,  0x80f3,  0x0088,  0x81e3,  0x0198,  0x0110,  0x816b,
+	0x83c3,  0x03b8,  0x0330,  0x834b,  0x0220,  0x825b,  0x82d3,  0x02a8,
+	0x8783,  0x07f8,  0x0770,  0x870b,  0x0660,  0x861b,  0x8693,  0x06e8,
+	0x0440,  0x843b,  0x84b3,  0x04c8,  0x85a3,  0x05d8,  0x0550,  0x852b,
+	0x8f03,  0x0f78,  0x0ff0,  0x8f8b,  0x0ee0,  0x8e9b,  0x8e13,  0x0e68,
+	0x0cc0,  0x8cbb,  0x8c33,  0x0c48,  0x8d23,  0x0d58,  0x0dd0,  0x8dab,
+	0x0880,  0x88fb,  0x8873,  0x0808,  0x8963,  0x0918,  0x0990,  0x89eb,
+	0x8b43,  0x0b38,  0x0bb0,  0x8bcb,  0x0aa0,  0x8adb,  0x8a53,  0x0a28,
+	0x9e03,  0x1e78,  0x1ef0,  0x9e8b,  0x1fe0,  0x9f9b,  0x9f13,  0x1f68,
+	0x1dc0,  0x9dbb,  0x9d33,  0x1d48,  0x9c23,  0x1c58,  0x1cd0,  0x9cab,
+	0x1980,  0x99fb,  0x9973,  0x1908,  0x9863,  0x1818,  0x1890,  0x98eb,
+	0x9a43,  0x1a38,  0x1ab0,  0x9acb,  0x1ba0,  0x9bdb,  0x9b53,  0x1b28,
+	0x1100,  0x917b,  0x91f3,  0x1188,  0x90e3,  0x1098,  0x1010,  0x906b,
+	0x92c3,  0x12b8,  0x1230,  0x924b,  0x1320,  0x935b,  0x93d3,  0x13a8,
+	0x9683,  0x16f8,  0x1670,  0x960b,  0x1760,  0x971b,  0x9793,  0x17e8,
+	0x1540,  0x953b,  0x95b3,  0x15c8,  0x94a3,  0x14d8,  0x1450,  0x942b,
+	0xbc03,  0x3c78,  0x3cf0,  0xbc8b,  0x3de0,  0xbd9b,  0xbd13,  0x3d68,
+	0x3fc0,  0xbfbb,  0xbf33,  0x3f48,  0xbe23,  0x3e58,  0x3ed0,  0xbeab,
+	0x3b80,  0xbbfb,  0xbb73,  0x3b08,  0xba63,  0x3a18,  0x3a90,  0xbaeb,
+	0xb843,  0x3838,  0x38b0,  0xb8cb,  0x39a0,  0xb9db,  0xb953,  0x3928,
+	0x3300,  0xb37b,  0xb3f3,  0x3388,  0xb2e3,  0x3298,  0x3210,  0xb26b,
+	0xb0c3,  0x30b8,  0x3030,  0xb04b,  0x3120,  0xb15b,  0xb1d3,  0x31a8,
+	0xb483,  0x34f8,  0x3470,  0xb40b,  0x3560,  0xb51b,  0xb593,  0x35e8,
+	0x3740,  0xb73b,  0xb7b3,  0x37c8,  0xb6a3,  0x36d8,  0x3650,  0xb62b,
+	0x2200,  0xa27b,  0xa2f3,  0x2288,  0xa3e3,  0x2398,  0x2310,  0xa36b,
+	0xa1c3,  0x21b8,  0x2130,  0xa14b,  0x2020,  0xa05b,  0xa0d3,  0x20a8,
+	0xa583,  0x25f8,  0x2570,  0xa50b,  0x2460,  0xa41b,  0xa493,  0x24e8,
+	0x2640,  0xa63b,  0xa6b3,  0x26c8,  0xa7a3,  0x27d8,  0x2750,  0xa72b,
+	0xad03,  0x2d78,  0x2df0,  0xad8b,  0x2ce0,  0xac9b,  0xac13,  0x2c68,
+	0x2ec0,  0xaebb,  0xae33,  0x2e48,  0xaf23,  0x2f58,  0x2fd0,  0xafab,
+	0x2a80,  0xaafb,  0xaa73,  0x2a08,  0xab63,  0x2b18,  0x2b90,  0xabeb,
+	0xa943,  0x2938,  0x29b0,  0xa9cb,  0x28a0,  0xa8db,  0xa853,  0x2828 },
+
+  { 0x0000,  0xf803,  0x7003,  0x8800,  0xe006,  0x1805,  0x9005,  0x6806,
+	0x4009,  0xb80a,  0x300a,  0xc809,  0xa00f,  0x580c,  0xd00c,  0x280f,
+	0x8012,  0x7811,  0xf011,  0x0812,  0x6014,  0x9817,  0x1017,  0xe814,
+	0xc01b,  0x3818,  0xb018,  0x481b,  0x201d,  0xd81e,  0x501e,  0xa81d,
+	0x8021,  0x7822,  0xf022,  0x0821,  0x6027,  0x9824,  0x1024,  0xe827,
+	0xc028,  0x382b,  0xb02b,  0x4828,  0x202e,  0xd82d,  0x502d,  0xa82e,
+	0x0033,  0xf830,  0x7030,  0x8833,  0xe035,  0x1836,  0x9036,  0x6835,
+	0x403a,  0xb839,  0x3039,  0xc83a,  0xa03c,  0x583f,  0xd03f,  0x283c,
+	0x8047,  0x7844,  0xf044,  0x0847,  0x6041,  0x9842,  0x1042,  0xe841,
+	0xc04e,  0x384d,  0xb04d,  0x484e,  0x2048,  0xd84b,  0x504b,  0xa848,
+	0x0055,  0xf856,  0x7056,  0x8855,  0xe053,  0x1850,  0x9050,  0x6853,
+	0x405c,  0xb85f,  0x305f,  0xc85c,  0xa05a,  0x5859,  0xd059,  0x285a,
+	0x0066,  0xf865,  0x7065,  0x8866,  0xe060,  0x1863,  0x9063,  0x6860,
+	0x406f,  0xb86c,  0x306c,  0xc86f,  0xa069,  0x586a,  0xd06a,  0x2869,
+	0x8074,  0x7877,  0xf077,  0x0874,  0x6072,  0x9871,  0x1071,  0xe872,
+	0xc07d,  0x387e,  0xb07e,  0x487d,  0x207b,  0xd878,  0x5078,  0xa87b,
+	0x808b,  0x7888,  0xf088,  0x088b,  0x608d,  0x988e,  0x108e,  0xe88d,
+	0xc082,  0x3881,  0xb081,  0x4882,  0x2084,  0xd887,  0x5087,  0xa884,
+	0x0099,  0xf89a,  0x709a,  0x8899,  0xe09f,  0x189c,  0x909c,  0x689f,
+	0x4090,  0xb893,  0x3093,  0xc890,  0xa096,  0x5895,  0xd095,  0x2896,
+	0x00aa,  0xf8a9,  0x70a9,  0x88aa,  0xe0ac,  0x18af,  0x90af,  0x68ac,
+	0x40a3,  0xb8a0,  0x30a0,  0xc8a3,  0xa0a5,  0x58a6,  0xd0a6,  0x28a5,
+	0x80b8,  0x78bb,  0xf0bb,  0x08b8,  0x60be,  0x98bd,  0x10bd,  0xe8be,
+	0xc0b1,  0x38b2,  0xb0b2,  0x48b1,  0x20b7,  0xd8b4,  0x50b4,  0xa8b7,
+	0x00cc,  0xf8cf,  0x70cf,  0x88cc,  0xe0ca,  0x18c9,  0x90c9,  0x68ca,
+	0x40c5,  0xb8c6,  0x30c6,  0xc8c5,  0xa0c3,  0x58c0,  0xd0c0,  0x28c3,
+	0x80de,  0x78dd,  0xf0dd,  0x08de,  0x60d8,  0x98db,  0x10db,  0xe8d8,
+	0xc0d7,  0x38d4,  0xb0d4,  0x48d7,  0x20d1,  0xd8d2,  0x50d2,  0xa8d1,
+	0x80ed,  0x78ee,  0xf0ee,  0x08ed,  0x60eb,  0x98e8,  0x10e8,  0xe8eb,
+	0xc0e4,  0x38e7,  0xb0e7,  0x48e4,  0x20e2,  0xd8e1,  0x50e1,  0xa8e2,
+	0x00ff,  0xf8fc,  0x70fc,  0x88ff,  0xe0f9,  0x18fa,  0x90fa,  0x68f9,
+	0x40f6,  0xb8f5,  0x30f5,  0xc8f6,  0xa0f0,  0x58f3,  0xd0f3,  0x28f0 },
+
+  { 0x0000,  0x8113,  0x8223,  0x0330,  0x8443,  0x0550,  0x0660,  0x8773,
+	0x8883,  0x0990,  0x0aa0,  0x8bb3,  0x0cc0,  0x8dd3,  0x8ee3,  0x0ff0,
+	0x9103,  0x1010,  0x1320,  0x9233,  0x1540,  0x9453,  0x9763,  0x1670,
+	0x1980,  0x9893,  0x9ba3,  0x1ab0,  0x9dc3,  0x1cd0,  0x1fe0,  0x9ef3,
+	0xa203,  0x2310,  0x2020,  0xa133,  0x2640,  0xa753,  0xa463,  0x2570,
+	0x2a80,  0xab93,  0xa8a3,  0x29b0,  0xaec3,  0x2fd0,  0x2ce0,  0xadf3,
+	0x3300,  0xb213,  0xb123,  0x3030,  0xb743,  0x3650,  0x3560,  0xb473,
+	0xbb83,  0x3a90,  0x39a0,  0xb8b3,  0x3fc0,  0xbed3,  0xbde3,  0x3cf0,
+	0xc403,  0x4510,  0x4620,  0xc733,  0x4040,  0xc153,  0xc263,  0x4370,
+	0x4c80,  0xcd93,  0xcea3,  0x4fb0,  0xc8c3,  0x49d0,  0x4ae0,  0xcbf3,
+	0x5500,  0xd413,  0xd723,  0x5630,  0xd143,  0x5050,  0x5360,  0xd273,
+	0xdd83,  0x5c90,  0x5fa0,  0xdeb3,  0x59c0,  0xd8d3,  0xdbe3,  0x5af0,
+	0x6600,  0xe713,  0xe423,  0x6530,  0xe243,  0x6350,  0x6060,  0xe173,
+	0xee83,  0x6f90,  0x6ca0,  0xedb3,  0x6ac0,  0xebd3,  0xe8e3,  0x69f0,
+	0xf703,  0x7610,  0x7520,  0xf433,  0x7340,  0xf253,  0xf163,  0x7070,
+	0x7f80,  0xfe93,  0xfda3,  0x7cb0,  0xfbc3,  0x7ad0,  0x79e0,  0xf8f3,
+	0x0803,  0x8910,  0x8a20,  0x0b33,  0x8c40,  0x0d53,  0x0e63,  0x8f70,
+	0x8080,  0x0193,  0x02a3,  0x83b0,  0x04c3,  0x85d0,  0x86e0,  0x07f3,
+	0x9900,  0x1813,  0x1b23,  0x9a30,  0x1d43,  0x9c50,  0x9f60,  0x1e73,
+	0x1183,  0x9090,  0x93a0,  0x12b3,  0x95c0,  0x14d3,  0x17e3,  0x96f0,
+	0xaa00,  0x2b13,  0x2823,  0xa930,  0x2e43,  0xaf50,  0xac60,  0x2d73,
+	0x2283,  0xa390,  0xa0a0,  0x21b3,  0xa6c0,  0x27d3,  0x24e3,  0xa5f0,
+	0x3b03,  0xba10,  0xb920,  0x3833,  0xbf40,  0x3e53,  0x3d63,  0xbc70,
+	0xb380,  0x3293,  0x31a3,  0xb0b0,  0x37c3,  0xb6d0,  0xb5e0,  0x34f3,
+	0xcc00,  0x4d13,  0x4e23,  0xcf30,  0x4843,  0xc950,  0xca60,  0x4b73,
+	0x4483,  0xc590,  0xc6a0,  0x47b3,  0xc0c0,  0x41d3,  0x42e3,  0xc3f0,
+	0x5d03,  0xdc10,  0xdf20,  0x5e33,  0xd940,  0x5853,  0x5b63,  0xda70,
+	0xd580,  0x5493,  0x57a3,  0xd6b0,  0x51c3,  0xd0d0,  0xd3e0,  0x52f3,
+	0x6e03,  0xef10,  0xec20,  0x6d33,  0xea40,  0x6b53,  0x6863,  0xe970,
+	0xe680,  0x6793,  0x64a3,  0xe5b0,  0x62c3,  0xe3d0,  0xe0e0,  0x61f3,
+	0xff00,  0x7e13,  0x7d23,  0xfc30,  0x7b43,  0xfa50,  0xf960,  0x7873,
+	0x7783,  0xf690,  0xf5a0,  0x74b3,  0xf3c0,  0x72d3,  0x71e3,  0xf0f0 },
+
+  { 0x0000,  0x1006,  0x200c,  0x300a,  0x4018,  0x501e,  0x6014,  0x7012,
+	0x8030,  0x9036,  0xa03c,  0xb03a,  0xc028,  0xd02e,  0xe024,  0xf022,
+	0x8065,  0x9063,  0xa069,  0xb06f,  0xc07d,  0xd07b,  0xe071,  0xf077,
+	0x0055,  0x1053,  0x2059,  0x305f,  0x404d,  0x504b,  0x6041,  0x7047,
+	0x80cf,  0x90c9,  0xa0c3,  0xb0c5,  0xc0d7,  0xd0d1,  0xe0db,  0xf0dd,
+	0x00ff,  0x10f9,  0x20f3,  0x30f5,  0x40e7,  0x50e1,  0x60eb,  0x70ed,
+	0x00aa,  0x10ac,  0x20a6,  0x30a0,  0x40b2,  0x50b4,  0x60be,  0x70b8,
+	0x809a,  0x909c,  0xa096,  0xb090,  0xc082,  0xd084,  0xe08e,  0xf088,
+	0x819b,  0x919d,  0xa197,  0xb191,  0xc183,  0xd185,  0xe18f,  0xf189,
+	0x01ab,  0x11ad,  0x21a7,  0x31a1,  0x41b3,  0x51b5,  0x61bf,  0x71b9,
+	0x01fe,  0x11f8,  0x21f2,  0x31f4,  0x41e6,  0x51e0,  0x61ea,  0x71ec,
+	0x81ce,  0x91c8,  0xa1c2,  0xb1c4,  0xc1d6,  0xd1d0,  0xe1da,  0xf1dc,
+	0x0154,  0x1152,  0x2158,  0x315e,  0x414c,  0x514a,  0x6140,  0x7146,
+	0x8164,  0x9162,  0xa168,  0xb16e,  0xc17c,  0xd17a,  0xe170,  0xf176,
+	0x8131,  0x9137,  0xa13d,  0xb13b,  0xc129,  0xd12f,  0xe125,  0xf123,
+	0x0101,  0x1107,  0x210d,  0x310b,  0x4119,  0x511f,  0x6115,  0x7113,
+	0x8333,  0x9335,  0xa33f,  0xb339,  0xc32b,  0xd32d,  0xe327,  0xf321,
+	0x0303,  0x1305,  0x230f,  0x3309,  0x431b,  0x531d,  0x6317,  0x7311,
+	0x0356,  0x1350,  0x235a,  0x335c,  0x434e,  0x5348,  0x6342,  0x7344,
+	0x8366,  0x9360,  0xa36a,  0xb36c,  0xc37e,  0xd378,  0xe372,  0xf374,
+	0x03fc,  0x13fa,  0x23f0,  0x33f6,  0x43e4,  0x53e2,  0x63e8,  0x73ee,
+	0x83cc,  0x93ca,  0xa3c0,  0xb3c6,  0xc3d4,  0xd3d2,  0xe3d8,  0xf3de,
+	0x8399,  0x939f,  0xa395,  0xb393,  0xc381,  0xd387,  0xe38d,  0xf38b,
+	0x03a9,  0x13af,  0x23a5,  0x33a3,  0x43b1,  0x53b7,  0x63bd,  0x73bb,
+	0x02a8,  0x12ae,  0x22a4,  0x32a2,  0x42b0,  0x52b6,  0x62bc,  0x72ba,
+	0x8298,  0x929e,  0xa294,  0xb292,  0xc280,  0xd286,  0xe28c,  0xf28a,
+	0x82cd,  0x92cb,  0xa2c1,  0xb2c7,  0xc2d5,  0xd2d3,  0xe2d9,  0xf2df,
+	0x02fd,  0x12fb,  0x22f1,  0x32f7,  0x42e5,  0x52e3,  0x62e9,  0x72ef,
+	0x8267,  0x9261,  0xa26b,  0xb26d,  0xc27f,  0xd279,  0xe273,  0xf275,
+	0x0257,  0x1251,  0x225b,  0x325d,  0x424f,  0x5249,  0x6243,  0x7245,
+	0x0202,  0x1204,  0x220e,  0x3208,  0x421a,  0x521c,  0x6216,  0x7210,
+	0x8232,  0x9234,  0xa23e,  0xb238,  0xc22a,  0xd22c,  0xe226,  0xf220 }
+};
+
+#if 0
+void FLAC__crc16_init_table(void)
+{
+	int i, j;
+	FLAC__uint16 polynomial, crc;
+	polynomial = 0x8005;
+
+	for(i = 0; i <= 0xFF; i++){
+		crc = i << 8;
+
+		for(j = 0; j < 8; j++)
+			crc = (crc << 1) ^ (crc & (1 << 15) ? polynomial : 0);
+
+		FLAC__crc16_table[0][i] = crc;
+	}
+
+	for(i = 0; i <= 0xFF; i++)
+		for(j = 1; j < 8; j++)
+			FLAC__crc16_table[j][i] = FLAC__crc16_table[0][FLAC__crc16_table[j - 1][i] >> 8] ^ (FLAC__crc16_table[j - 1][i] << 8);
+}
+#endif
+
+FLAC__uint8 FLAC__crc8(const FLAC__byte *data, uint32_t len)
+{
+	FLAC__uint8 crc = 0;
+
+	while(len--)
+		crc = FLAC__crc8_table[crc ^ *data++];
+
+	return crc;
+}
+
+FLAC__uint16 FLAC__crc16(const FLAC__byte *data, uint32_t len)
+{
+	FLAC__uint16 crc = 0;
+
+	while(len >= 8){
+		crc ^= data[0] << 8 | data[1];
+
+		crc = FLAC__crc16_table[7][crc >> 8] ^ FLAC__crc16_table[6][crc & 0xFF] ^
+		      FLAC__crc16_table[5][data[2] ] ^ FLAC__crc16_table[4][data[3]   ] ^
+		      FLAC__crc16_table[3][data[4] ] ^ FLAC__crc16_table[2][data[5]   ] ^
+		      FLAC__crc16_table[1][data[6] ] ^ FLAC__crc16_table[0][data[7]   ];
+
+		data += 8;
+		len -= 8;
+	}
+
+	while(len--)
+		crc = (crc<<8) ^ FLAC__crc16_table[0][(crc>>8) ^ *data++];
+
+	return crc;
+}
+
+FLAC__uint16 FLAC__crc16_update_words32(const FLAC__uint32 *words, uint32_t len, FLAC__uint16 crc)
+{
+	while (len >= 2) {
+		crc ^= words[0] >> 16;
+
+		crc = FLAC__crc16_table[7][crc >> 8               ] ^ FLAC__crc16_table[6][crc & 0xFF             ] ^
+		      FLAC__crc16_table[5][(words[0] >>  8) & 0xFF] ^ FLAC__crc16_table[4][ words[0]        & 0xFF] ^
+		      FLAC__crc16_table[3][ words[1] >> 24        ] ^ FLAC__crc16_table[2][(words[1] >> 16) & 0xFF] ^
+		      FLAC__crc16_table[1][(words[1] >>  8) & 0xFF] ^ FLAC__crc16_table[0][ words[1]        & 0xFF];
+
+		words += 2;
+		len -= 2;
+	}
+
+	if (len) {
+		crc ^= words[0] >> 16;
+
+		crc = FLAC__crc16_table[3][crc >> 8               ] ^ FLAC__crc16_table[2][crc & 0xFF             ] ^
+		      FLAC__crc16_table[1][(words[0] >>  8) & 0xFF] ^ FLAC__crc16_table[0][words[0]         & 0xFF];
+	}
+
+	return crc;
+}
+
+FLAC__uint16 FLAC__crc16_update_words64(const FLAC__uint64 *words, uint32_t len, FLAC__uint16 crc)
+{
+	while (len--) {
+		crc ^= words[0] >> 48;
+
+		crc = FLAC__crc16_table[7][crc >> 8               ] ^ FLAC__crc16_table[6][crc & 0xFF             ] ^
+		      FLAC__crc16_table[5][(words[0] >> 40) & 0xFF] ^ FLAC__crc16_table[4][(words[0] >> 32) & 0xFF] ^
+		      FLAC__crc16_table[3][(words[0] >> 24) & 0xFF] ^ FLAC__crc16_table[2][(words[0] >> 16) & 0xFF] ^
+		      FLAC__crc16_table[1][(words[0] >>  8) & 0xFF] ^ FLAC__crc16_table[0][ words[0]        & 0xFF];
+
+		words++;
+	}
+
+	return crc;
+}

extern/flac/src/libFLAC/deduplication/bitreader_read_rice_signed_block.c

@@ -0,0 +1,143 @@
+{
+	/* try and get br->consumed_words and br->consumed_bits into register;
+	 * must remember to flush them back to *br before calling other
+	 * bitreader functions that use them, and before returning */
+	uint32_t cwords, words, lsbs, msbs, x, y, limit;
+	uint32_t ucbits; /* keep track of the number of unconsumed bits in word */
+	brword b;
+	int *val, *end;
+
+	FLAC__ASSERT(0 != br);
+	FLAC__ASSERT(0 != br->buffer);
+	/* WATCHOUT: code does not work with <32bit words; we can make things much faster with this assertion */
+	FLAC__ASSERT(FLAC__BITS_PER_WORD >= 32);
+	FLAC__ASSERT(parameter < 32);
+	/* the above two asserts also guarantee that the binary part never straddles more than 2 words, so we don't have to loop to read it */
+
+	limit = UINT32_MAX >> parameter; /* Maximal msbs that can occur with residual bounded to int32_t */
+
+	val = vals;
+	end = vals + nvals;
+
+	if(parameter == 0) {
+		while(val < end) {
+			/* read the unary MSBs and end bit */
+			if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
+				return false;
+			/* Checking limit here would be overzealous: coding UINT32_MAX
+			 * with parameter == 0 would take 4GiB */
+			*val++ = (int)(msbs >> 1) ^ -(int)(msbs & 1);
+		}
+
+		return true;
+	}
+
+	FLAC__ASSERT(parameter > 0);
+
+	cwords = br->consumed_words;
+	words = br->words;
+
+	/* if we've not consumed up to a partial tail word... */
+	if(cwords >= words) {
+		x = 0;
+		goto process_tail;
+	}
+
+	ucbits = FLAC__BITS_PER_WORD - br->consumed_bits;
+	b = br->buffer[cwords] << br->consumed_bits;  /* keep unconsumed bits aligned to left */
+
+	while(val < end) {
+		/* read the unary MSBs and end bit */
+		x = y = COUNT_ZERO_MSBS2(b);
+		if(x == FLAC__BITS_PER_WORD) {
+			x = ucbits;
+			do {
+				/* didn't find stop bit yet, have to keep going... */
+				cwords++;
+				if (cwords >= words)
+					goto incomplete_msbs;
+				b = br->buffer[cwords];
+				y = COUNT_ZERO_MSBS2(b);
+				x += y;
+			} while(y == FLAC__BITS_PER_WORD);
+		}
+		b <<= y;
+		b <<= 1; /* account for stop bit */
+		ucbits = (ucbits - x - 1) % FLAC__BITS_PER_WORD;
+		msbs = x;
+
+		if(x > limit)
+			return false;
+
+		/* read the binary LSBs */
+		x = (FLAC__uint32)(b >> (FLAC__BITS_PER_WORD - parameter)); /* parameter < 32, so we can cast to 32-bit uint32_t */
+		if(parameter <= ucbits) {
+			ucbits -= parameter;
+			b <<= parameter;
+		} else {
+			/* there are still bits left to read, they will all be in the next word */
+			cwords++;
+			if (cwords >= words)
+				goto incomplete_lsbs;
+			b = br->buffer[cwords];
+			ucbits += FLAC__BITS_PER_WORD - parameter;
+			x |= (FLAC__uint32)(b >> ucbits);
+			b <<= FLAC__BITS_PER_WORD - ucbits;
+		}
+		lsbs = x;
+
+		/* compose the value */
+		x = (msbs << parameter) | lsbs;
+		*val++ = (int)(x >> 1) ^ -(int)(x & 1);
+
+		continue;
+
+		/* at this point we've eaten up all the whole words */
+process_tail:
+		do {
+			if(0) {
+incomplete_msbs:
+				br->consumed_bits = 0;
+				br->consumed_words = cwords;
+			}
+
+			/* read the unary MSBs and end bit */
+			if(!FLAC__bitreader_read_unary_unsigned(br, &msbs))
+				return false;
+			msbs += x;
+			x = ucbits = 0;
+
+			if(0) {
+incomplete_lsbs:
+				br->consumed_bits = 0;
+				br->consumed_words = cwords;
+			}
+
+			/* read the binary LSBs */
+			if(!FLAC__bitreader_read_raw_uint32(br, &lsbs, parameter - ucbits))
+				return false;
+			lsbs = x | lsbs;
+
+			/* compose the value */
+			x = (msbs << parameter) | lsbs;
+			*val++ = (int)(x >> 1) ^ -(int)(x & 1);
+			x = 0;
+
+			cwords = br->consumed_words;
+			words = br->words;
+			ucbits = FLAC__BITS_PER_WORD - br->consumed_bits;
+			b = cwords < br->capacity ? br->buffer[cwords] << br->consumed_bits : 0;
+		} while(cwords >= words && val < end);
+	}
+
+	if(ucbits == 0 && cwords < words) {
+		/* don't leave the head word with no unconsumed bits */
+		cwords++;
+		ucbits = FLAC__BITS_PER_WORD;
+	}
+
+	br->consumed_bits = FLAC__BITS_PER_WORD - ucbits;
+	br->consumed_words = cwords;
+
+	return true;
+}

extern/flac/src/libFLAC/deduplication/lpc_compute_autocorrelation_intrin.c

@@ -0,0 +1,14 @@
+	int i, j;
+	(void) lag;
+	FLAC__ASSERT(lag <= MAX_LAG);
+
+        for(i = 0; i < MAX_LAG; i++)
+                autoc[i] = 0.0;
+
+        for(i = 0; i < MAX_LAG; i++)
+                for(j = 0; j <= i; j++)
+                        autoc[j] += (double)data[i] * (double)data[i-j];
+
+        for(i = MAX_LAG; i < (int)data_len; i++)
+		for(j = 0; j < MAX_LAG; j++)
+	                autoc[j] += (double)data[i] * (double)data[i-j];

extern/flac/src/libFLAC/deduplication/lpc_compute_autocorrelation_intrin_neon.c

@@ -0,0 +1,70 @@
+	int i;
+	float64x2_t sum0 = vdupq_n_f64(0.0f);
+	float64x2_t sum1 = vdupq_n_f64(0.0f);
+	float64x2_t sum2 = vdupq_n_f64(0.0f);
+	float64x2_t sum3 = vdupq_n_f64(0.0f);
+	float64x2_t d0 = vdupq_n_f64(0.0f);
+	float64x2_t d1 = vdupq_n_f64(0.0f);
+	float64x2_t d2 = vdupq_n_f64(0.0f);
+	float64x2_t d3 = vdupq_n_f64(0.0f);
+#if MAX_LAG > 8
+	float64x2_t sum4 = vdupq_n_f64(0.0f);
+	float64x2_t d4 = vdupq_n_f64(0.0f);
+#endif
+#if MAX_LAG > 10
+	float64x2_t sum5 = vdupq_n_f64(0.0f);
+	float64x2_t sum6 = vdupq_n_f64(0.0f);
+	float64x2_t d5 = vdupq_n_f64(0.0f);
+	float64x2_t d6 = vdupq_n_f64(0.0f);
+#endif
+	float64x2_t d;
+
+	(void)lag;
+	FLAC__ASSERT(lag <= MAX_LAG);
+
+	// Loop backwards through samples from data_len to 0
+	for (i = data_len - 1; i >= 0; i--)
+	{
+		d = vdupq_n_f64(data[i]); // Create vector with 2 entries data[i]
+
+		// The next 6 lines of code right-shift the elements through the 7 vectors d0..d6.
+		// The 7th line adds the newly loaded element to d0. This works like a stack, where
+		// data[i] is pushed onto the stack every time and the 9th element falls off
+#if MAX_LAG > 10
+		d6 = vextq_f64(d5,d6,1);
+		d5 = vextq_f64(d4,d5,1);
+#endif
+#if MAX_LAG > 8
+		d4 = vextq_f64(d3,d4,1);
+#endif
+		d3 = vextq_f64(d2,d3,1);
+		d2 = vextq_f64(d1,d2,1);
+		d1 = vextq_f64(d0,d1,1);
+		d0 = vextq_f64(d,d0,1);
+
+		// Fused multiply-add sum += d * d0..d6
+		sum0 = vfmaq_f64(sum0, d, d0);
+		sum1 = vfmaq_f64(sum1, d, d1);
+		sum2 = vfmaq_f64(sum2, d, d2);
+		sum3 = vfmaq_f64(sum3, d, d3);
+#if MAX_LAG > 8
+		sum4 = vfmaq_f64(sum4, d, d4);
+#endif
+#if MAX_LAG > 10
+		sum5 = vfmaq_f64(sum5, d, d5);
+		sum6 = vfmaq_f64(sum6, d, d6);
+#endif
+	}
+
+    // Store sum0..sum6 in autoc[0..14]
+    vst1q_f64(autoc, sum0);
+    vst1q_f64(autoc + 2, sum1);
+    vst1q_f64(autoc + 4, sum2);
+    vst1q_f64(autoc + 6, sum3);
+#if MAX_LAG > 8
+    vst1q_f64(autoc + 8, sum4);
+#endif
+#if MAX_LAG > 10
+    vst1q_f64(autoc + 10, sum5);
+    vst1q_f64(autoc + 12, sum6);
+#endif

extern/flac/src/libFLAC/deduplication/lpc_compute_autocorrelation_intrin_sse2.c

@@ -0,0 +1,81 @@
+/* This code is imported several times in lpc_intrin_sse2.c with different
+ * values for MAX_LAG. Comments are for MAX_LAG == 14 */
+	int i;
+	__m128d sum0, sum1, sum2, sum3;
+	__m128d d0, d1, d2, d3;
+#if MAX_LAG > 8
+	__m128d d4;
+	__m128d sum4;
+#endif
+#if MAX_LAG > 10
+	__m128d d5, d6;
+	__m128d sum5, sum6;
+#endif
+
+	(void) lag;
+	FLAC__ASSERT(lag <= MAX_LAG);
+
+	/* Initialize all sum vectors with zero */
+	sum0 = _mm_setzero_pd();
+	sum1 = _mm_setzero_pd();
+	sum2 = _mm_setzero_pd();
+	sum3 = _mm_setzero_pd();
+	d0 = _mm_setzero_pd();
+	d1 = _mm_setzero_pd();
+	d2 = _mm_setzero_pd();
+	d3 = _mm_setzero_pd();
+#if MAX_LAG > 8
+	sum4 = _mm_setzero_pd();
+	d4 = _mm_setzero_pd();
+#endif
+#if MAX_LAG > 10
+	sum5 = _mm_setzero_pd();
+	sum6 = _mm_setzero_pd();
+	d5 = _mm_setzero_pd();
+	d6 = _mm_setzero_pd();
+#endif
+
+	/* Loop backwards through samples from data_len to limit */
+	for(i = data_len-1; i >= 0; i--) {
+		__m128d d = _mm_set1_pd(data[i]);
+
+		/* The next lines of code work like a queue. For more
+		 * information see the lag8 version of this function */
+#if MAX_LAG > 10
+		d6 = _mm_shuffle_pd(d5, d6, _MM_SHUFFLE(0,0,0,1));
+		d5 = _mm_shuffle_pd(d4, d5, _MM_SHUFFLE(0,0,0,1));
+#endif
+#if MAX_LAG > 8
+		d4 = _mm_shuffle_pd(d3, d4, _MM_SHUFFLE(0,0,0,1));
+#endif
+		d3 = _mm_shuffle_pd(d2, d3, _MM_SHUFFLE(0,0,0,1));
+		d2 = _mm_shuffle_pd(d1, d2, _MM_SHUFFLE(0,0,0,1));
+		d1 = _mm_shuffle_pd(d0, d1, _MM_SHUFFLE(0,0,0,1));
+		d0 = _mm_shuffle_pd(d,  d0, _MM_SHUFFLE(0,0,0,1));
+
+		/* sumn += d*dn */
+		sum0 = _mm_add_pd(sum0, _mm_mul_pd(d, d0));
+		sum1 = _mm_add_pd(sum1, _mm_mul_pd(d, d1));
+		sum2 = _mm_add_pd(sum2, _mm_mul_pd(d, d2));
+		sum3 = _mm_add_pd(sum3, _mm_mul_pd(d, d3));
+#if MAX_LAG > 8
+		sum4 = _mm_add_pd(sum4, _mm_mul_pd(d, d4));
+#endif
+#if MAX_LAG > 10
+		sum5 = _mm_add_pd(sum5, _mm_mul_pd(d, d5));
+		sum6 = _mm_add_pd(sum6, _mm_mul_pd(d, d6));
+#endif
+	}
+
+	/* Store sum0..sum6 in autoc[0..14] */
+	_mm_storeu_pd(autoc,   sum0);
+	_mm_storeu_pd(autoc+2, sum1);
+	_mm_storeu_pd(autoc+4, sum2);
+	_mm_storeu_pd(autoc+6 ,sum3);
+#if MAX_LAG > 8
+	_mm_storeu_pd(autoc+8, sum4);
+#endif
+#if MAX_LAG > 10
+	_mm_storeu_pd(autoc+10,sum5);
+	_mm_storeu_pd(autoc+12,sum6);
+#endif

extern/flac/src/libFLAC/fixed.c

@@ -0,0 +1,667 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <math.h>
+#include <string.h>
+#include "share/compat.h"
+#include "private/bitmath.h"
+#include "private/fixed.h"
+#include "private/macros.h"
+#include "FLAC/assert.h"
+
+#ifdef local_abs
+#undef local_abs
+#endif
+#define local_abs(x) ((uint32_t)((x)<0? -(x) : (x)))
+
+#ifdef local_abs64
+#undef local_abs64
+#endif
+#define local_abs64(x) ((uint64_t)((x)<0? -(x) : (x)))
+
+#ifdef FLAC__INTEGER_ONLY_LIBRARY
+/* rbps stands for residual bits per sample
+ *
+ *             (ln(2) * err)
+ * rbps = log  (-----------)
+ *           2 (     n     )
+ */
+static FLAC__fixedpoint local__compute_rbps_integerized(FLAC__uint32 err, FLAC__uint32 n)
+{
+	FLAC__uint32 rbps;
+	uint32_t bits; /* the number of bits required to represent a number */
+	int fracbits; /* the number of bits of rbps that comprise the fractional part */
+
+	FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
+	FLAC__ASSERT(err > 0);
+	FLAC__ASSERT(n > 0);
+
+	FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
+	if(err <= n)
+		return 0;
+	/*
+	 * The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
+	 * These allow us later to know we won't lose too much precision in the
+	 * fixed-point division (err<<fracbits)/n.
+	 */
+
+	fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2(err)+1);
+
+	err <<= fracbits;
+	err /= n;
+	/* err now holds err/n with fracbits fractional bits */
+
+	/*
+	 * Whittle err down to 16 bits max.  16 significant bits is enough for
+	 * our purposes.
+	 */
+	FLAC__ASSERT(err > 0);
+	bits = FLAC__bitmath_ilog2(err)+1;
+	if(bits > 16) {
+		err >>= (bits-16);
+		fracbits -= (bits-16);
+	}
+	rbps = (FLAC__uint32)err;
+
+	/* Multiply by fixed-point version of ln(2), with 16 fractional bits */
+	rbps *= FLAC__FP_LN2;
+	fracbits += 16;
+	FLAC__ASSERT(fracbits >= 0);
+
+	/* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
+	{
+		const int f = fracbits & 3;
+		if(f) {
+			rbps >>= f;
+			fracbits -= f;
+		}
+	}
+
+	rbps = FLAC__fixedpoint_log2(rbps, fracbits, (uint32_t)(-1));
+
+	if(rbps == 0)
+		return 0;
+
+	/*
+	 * The return value must have 16 fractional bits.  Since the whole part
+	 * of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
+	 * must be >= -3, these assertion allows us to be able to shift rbps
+	 * left if necessary to get 16 fracbits without losing any bits of the
+	 * whole part of rbps.
+	 *
+	 * There is a slight chance due to accumulated error that the whole part
+	 * will require 6 bits, so we use 6 in the assertion.  Really though as
+	 * long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
+	 */
+	FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
+	FLAC__ASSERT(fracbits >= -3);
+
+	/* now shift the decimal point into place */
+	if(fracbits < 16)
+		return rbps << (16-fracbits);
+	else if(fracbits > 16)
+		return rbps >> (fracbits-16);
+	else
+		return rbps;
+}
+
+static FLAC__fixedpoint local__compute_rbps_wide_integerized(FLAC__uint64 err, FLAC__uint32 n)
+{
+	FLAC__uint32 rbps;
+	uint32_t bits; /* the number of bits required to represent a number */
+	int fracbits; /* the number of bits of rbps that comprise the fractional part */
+
+	FLAC__ASSERT(sizeof(rbps) == sizeof(FLAC__fixedpoint));
+	FLAC__ASSERT(err > 0);
+	FLAC__ASSERT(n > 0);
+
+	FLAC__ASSERT(n <= FLAC__MAX_BLOCK_SIZE);
+	if(err <= n)
+		return 0;
+	/*
+	 * The above two things tell us 1) n fits in 16 bits; 2) err/n > 1.
+	 * These allow us later to know we won't lose too much precision in the
+	 * fixed-point division (err<<fracbits)/n.
+	 */
+
+	fracbits = (8*sizeof(err)) - (FLAC__bitmath_ilog2_wide(err)+1);
+
+	err <<= fracbits;
+	err /= n;
+	/* err now holds err/n with fracbits fractional bits */
+
+	/*
+	 * Whittle err down to 16 bits max.  16 significant bits is enough for
+	 * our purposes.
+	 */
+	FLAC__ASSERT(err > 0);
+	bits = FLAC__bitmath_ilog2_wide(err)+1;
+	if(bits > 16) {
+		err >>= (bits-16);
+		fracbits -= (bits-16);
+	}
+	rbps = (FLAC__uint32)err;
+
+	/* Multiply by fixed-point version of ln(2), with 16 fractional bits */
+	rbps *= FLAC__FP_LN2;
+	fracbits += 16;
+	FLAC__ASSERT(fracbits >= 0);
+
+	/* FLAC__fixedpoint_log2 requires fracbits%4 to be 0 */
+	{
+		const int f = fracbits & 3;
+		if(f) {
+			rbps >>= f;
+			fracbits -= f;
+		}
+	}
+
+	rbps = FLAC__fixedpoint_log2(rbps, fracbits, (uint32_t)(-1));
+
+	if(rbps == 0)
+		return 0;
+
+	/*
+	 * The return value must have 16 fractional bits.  Since the whole part
+	 * of the base-2 log of a 32 bit number must fit in 5 bits, and fracbits
+	 * must be >= -3, these assertion allows us to be able to shift rbps
+	 * left if necessary to get 16 fracbits without losing any bits of the
+	 * whole part of rbps.
+	 *
+	 * There is a slight chance due to accumulated error that the whole part
+	 * will require 6 bits, so we use 6 in the assertion.  Really though as
+	 * long as it fits in 13 bits (32 - (16 - (-3))) we are fine.
+	 */
+	FLAC__ASSERT((int)FLAC__bitmath_ilog2(rbps)+1 <= fracbits + 6);
+	FLAC__ASSERT(fracbits >= -3);
+
+	/* now shift the decimal point into place */
+	if(fracbits < 16)
+		return rbps << (16-fracbits);
+	else if(fracbits > 16)
+		return rbps >> (fracbits-16);
+	else
+		return rbps;
+}
+#endif
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#else
+uint32_t FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#endif
+{
+	FLAC__uint32 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
+	uint32_t order;
+#if 0
+	/* This code has been around a long time, and was written when compilers weren't able
+	 * to vectorize code. These days, compilers are better in optimizing the next block
+	 * which is also much more readable
+	 */
+	FLAC__int32 last_error_0 = data[-1];
+	FLAC__int32 last_error_1 = data[-1] - data[-2];
+	FLAC__int32 last_error_2 = last_error_1 - (data[-2] - data[-3]);
+	FLAC__int32 last_error_3 = last_error_2 - (data[-2] - 2*data[-3] + data[-4]);
+	FLAC__int32 error, save;
+	uint32_t i;
+	/* total_error_* are 64-bits to avoid overflow when encoding
+	 * erratic signals when the bits-per-sample and blocksize are
+	 * large.
+	 */
+	for(i = 0; i < data_len; i++) {
+		error  = data[i]     ; total_error_0 += local_abs(error);                      save = error;
+		error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
+		error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
+		error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
+		error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
+	}
+#else
+	int i;
+	for(i = 0; i < (int)data_len; i++) {
+		total_error_0 += local_abs(data[i]);
+		total_error_1 += local_abs(data[i] - data[i-1]);
+		total_error_2 += local_abs(data[i] - 2 * data[i-1] + data[i-2]);
+		total_error_3 += local_abs(data[i] - 3 * data[i-1] + 3 * data[i-2] - data[i-3]);
+		total_error_4 += local_abs(data[i] - 4 * data[i-1] + 6 * data[i-2] - 4 * data[i-3] + data[i-4]);
+	}
+#endif
+
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+#else
+	residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_integerized(total_error_0, data_len) : 0;
+	residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_integerized(total_error_1, data_len) : 0;
+	residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_integerized(total_error_2, data_len) : 0;
+	residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_integerized(total_error_3, data_len) : 0;
+	residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_integerized(total_error_4, data_len) : 0;
+#endif
+
+	return order;
+}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#else
+uint32_t FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#endif
+{
+	FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0;
+	uint32_t order;
+	int i;
+
+	for(i = 0; i < (int)data_len; i++) {
+		total_error_0 += local_abs(data[i]);
+		total_error_1 += local_abs(data[i] - data[i-1]);
+		total_error_2 += local_abs(data[i] - 2 * data[i-1] + data[i-2]);
+		total_error_3 += local_abs(data[i] - 3 * data[i-1] + 3 * data[i-2] - data[i-3]);
+		total_error_4 += local_abs(data[i] - 4 * data[i-1] + 6 * data[i-2] - 4 * data[i-3] + data[i-4]);
+	}
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+#else
+	residual_bits_per_sample[0] = (total_error_0 > 0) ? local__compute_rbps_wide_integerized(total_error_0, data_len) : 0;
+	residual_bits_per_sample[1] = (total_error_1 > 0) ? local__compute_rbps_wide_integerized(total_error_1, data_len) : 0;
+	residual_bits_per_sample[2] = (total_error_2 > 0) ? local__compute_rbps_wide_integerized(total_error_2, data_len) : 0;
+	residual_bits_per_sample[3] = (total_error_3 > 0) ? local__compute_rbps_wide_integerized(total_error_3, data_len) : 0;
+	residual_bits_per_sample[4] = (total_error_4 > 0) ? local__compute_rbps_wide_integerized(total_error_4, data_len) : 0;
+#endif
+
+	return order;
+}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#define CHECK_ORDER_IS_VALID(macro_order)		\
+if(order_##macro_order##_is_valid && total_error_##macro_order < smallest_error) { \
+	order = macro_order;				\
+	smallest_error = total_error_##macro_order ;	\
+	residual_bits_per_sample[ macro_order ] = (float)((total_error_##macro_order > 0) ? log(M_LN2 * (double)total_error_##macro_order / (double)data_len) / M_LN2 : 0.0); \
+}							\
+else							\
+	residual_bits_per_sample[ macro_order ] = 34.0f;
+#else
+#define CHECK_ORDER_IS_VALID(macro_order)		\
+if(order_##macro_order##_is_valid && total_error_##macro_order < smallest_error) { \
+	order = macro_order;				\
+	smallest_error = total_error_##macro_order ;	\
+	residual_bits_per_sample[ macro_order ] = (total_error_##macro_order > 0) ? local__compute_rbps_wide_integerized(total_error_##macro_order, data_len) : 0; \
+}							\
+else							\
+	residual_bits_per_sample[ macro_order ] = 34 * FLAC__FP_ONE;
+#endif
+
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#else
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#endif
+{
+	FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0, smallest_error = UINT64_MAX;
+	FLAC__uint64 error_0, error_1, error_2, error_3, error_4;
+	FLAC__bool order_0_is_valid = true, order_1_is_valid = true, order_2_is_valid = true, order_3_is_valid = true, order_4_is_valid = true;
+	uint32_t order = 0;
+	int i;
+
+	for(i = -4; i < (int)data_len; i++) {
+		error_0 = local_abs64((FLAC__int64)data[i]);
+		error_1 = (i > -4) ? local_abs64((FLAC__int64)data[i] - data[i-1]) : 0 ;
+		error_2 = (i > -3) ? local_abs64((FLAC__int64)data[i] - 2 * (FLAC__int64)data[i-1] + data[i-2]) : 0;
+		error_3 = (i > -2) ? local_abs64((FLAC__int64)data[i] - 3 * (FLAC__int64)data[i-1] + 3 * (FLAC__int64)data[i-2] - data[i-3]) : 0;
+		error_4 = (i > -1) ? local_abs64((FLAC__int64)data[i] - 4 * (FLAC__int64)data[i-1] + 6 * (FLAC__int64)data[i-2] - 4 * (FLAC__int64)data[i-3] + data[i-4]) : 0;
+
+		total_error_0 += error_0;
+		total_error_1 += error_1;
+		total_error_2 += error_2;
+		total_error_3 += error_3;
+		total_error_4 += error_4;
+
+		/* residual must not be INT32_MIN because abs(INT32_MIN) is undefined */
+		if(error_0 > INT32_MAX)
+			order_0_is_valid = false;
+		if(error_1 > INT32_MAX)
+			order_1_is_valid = false;
+		if(error_2 > INT32_MAX)
+			order_2_is_valid = false;
+		if(error_3 > INT32_MAX)
+			order_3_is_valid = false;
+		if(error_4 > INT32_MAX)
+			order_4_is_valid = false;
+	}
+
+	CHECK_ORDER_IS_VALID(0);
+	CHECK_ORDER_IS_VALID(1);
+	CHECK_ORDER_IS_VALID(2);
+	CHECK_ORDER_IS_VALID(3);
+	CHECK_ORDER_IS_VALID(4);
+
+	return order;
+}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_33bit(const FLAC__int64 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#else
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_33bit(const FLAC__int64 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1])
+#endif
+{
+	FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0, smallest_error = UINT64_MAX;
+	FLAC__uint64 error_0, error_1, error_2, error_3, error_4;
+	FLAC__bool order_0_is_valid = true, order_1_is_valid = true, order_2_is_valid = true, order_3_is_valid = true, order_4_is_valid = true;
+	uint32_t order = 0;
+	int i;
+
+	for(i = -4; i < (int)data_len; i++) {
+		error_0 = local_abs64(data[i]);
+		error_1 = (i > -4) ? local_abs64(data[i] - data[i-1]) : 0 ;
+		error_2 = (i > -3) ? local_abs64(data[i] - 2 * data[i-1] + data[i-2]) : 0;
+		error_3 = (i > -2) ? local_abs64(data[i] - 3 * data[i-1] + 3 * data[i-2] - data[i-3]) : 0;
+		error_4 = (i > -1) ? local_abs64(data[i] - 4 * data[i-1] + 6 * data[i-2] - 4 * data[i-3] + data[i-4]) : 0;
+
+		total_error_0 += error_0;
+		total_error_1 += error_1;
+		total_error_2 += error_2;
+		total_error_3 += error_3;
+		total_error_4 += error_4;
+
+		/* residual must not be INT32_MIN because abs(INT32_MIN) is undefined */
+		if(error_0 > INT32_MAX)
+			order_0_is_valid = false;
+		if(error_1 > INT32_MAX)
+			order_1_is_valid = false;
+		if(error_2 > INT32_MAX)
+			order_2_is_valid = false;
+		if(error_3 > INT32_MAX)
+			order_3_is_valid = false;
+		if(error_4 > INT32_MAX)
+			order_4_is_valid = false;
+	}
+
+	CHECK_ORDER_IS_VALID(0);
+	CHECK_ORDER_IS_VALID(1);
+	CHECK_ORDER_IS_VALID(2);
+	CHECK_ORDER_IS_VALID(3);
+	CHECK_ORDER_IS_VALID(4);
+
+	return order;
+}
+
+void FLAC__fixed_compute_residual(const FLAC__int32 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[])
+{
+	const int idata_len = (int)data_len;
+	int i;
+
+	switch(order) {
+		case 0:
+			FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
+			memcpy(residual, data, sizeof(residual[0])*data_len);
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 2*data[i-1] + data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 3*data[i-1] + 3*data[i-2] - data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 4*data[i-1] + 6*data[i-2] - 4*data[i-3] + data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+void FLAC__fixed_compute_residual_wide(const FLAC__int32 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[])
+{
+	const int idata_len = (int)data_len;
+	int i;
+
+	switch(order) {
+		case 0:
+			FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
+			memcpy(residual, data, sizeof(residual[0])*data_len);
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = (FLAC__int64)data[i] - data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = (FLAC__int64)data[i] - 2*(FLAC__int64)data[i-1] + data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = (FLAC__int64)data[i] - 3*(FLAC__int64)data[i-1] + 3*(FLAC__int64)data[i-2] - data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = (FLAC__int64)data[i] - 4*(FLAC__int64)data[i-1] + 6*(FLAC__int64)data[i-2] - 4*(FLAC__int64)data[i-3] + data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+void FLAC__fixed_compute_residual_wide_33bit(const FLAC__int64 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[])
+{
+	const int idata_len = (int)data_len;
+	int i;
+
+	switch(order) {
+		case 0:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i];
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 2*data[i-1] + data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 3*data[i-1] + 3*data[i-2] - data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				residual[i] = data[i] - 4*data[i-1] + 6*data[i-2] - 4*data[i-3] + data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+#if defined(FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION) && !defined(FUZZING_BUILD_MODE_FLAC_SANITIZE_SIGNED_INTEGER_OVERFLOW)
+/* The attribute below is to silence the undefined sanitizer of oss-fuzz.
+ * Because fuzzing feeds bogus predictors and residual samples to the
+ * decoder, having overflows in this section is unavoidable. Also,
+ * because the calculated values are audio path only, there is no
+ * potential for security problems */
+__attribute__((no_sanitize("signed-integer-overflow")))
+#endif
+void FLAC__fixed_restore_signal(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int32 data[])
+{
+	int i, idata_len = (int)data_len;
+
+	switch(order) {
+		case 0:
+			FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
+			memcpy(data, residual, sizeof(residual[0])*data_len);
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i] + data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i] + 2*data[i-1] - data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i] + 3*data[i-1] - 3*data[i-2] + data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i] + 4*data[i-1] - 6*data[i-2] + 4*data[i-3] - data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+void FLAC__fixed_restore_signal_wide(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int32 data[])
+{
+	int i, idata_len = (int)data_len;
+
+	switch(order) {
+		case 0:
+			FLAC__ASSERT(sizeof(residual[0]) == sizeof(data[0]));
+			memcpy(data, residual, sizeof(residual[0])*data_len);
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + (FLAC__int64)data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 2*(FLAC__int64)data[i-1] - (FLAC__int64)data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 3*(FLAC__int64)data[i-1] - 3*(FLAC__int64)data[i-2] + (FLAC__int64)data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 4*(FLAC__int64)data[i-1] - 6*(FLAC__int64)data[i-2] + 4*(FLAC__int64)data[i-3] - (FLAC__int64)data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}
+
+#if defined(FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION) && !defined(FUZZING_BUILD_MODE_FLAC_SANITIZE_SIGNED_INTEGER_OVERFLOW)
+/* The attribute below is to silence the undefined sanitizer of oss-fuzz.
+ * Because fuzzing feeds bogus predictors and residual samples to the
+ * decoder, having overflows in this section is unavoidable. Also,
+ * because the calculated values are audio path only, there is no
+ * potential for security problems */
+__attribute__((no_sanitize("signed-integer-overflow")))
+#endif
+void FLAC__fixed_restore_signal_wide_33bit(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int64 data[])
+{
+	int i, idata_len = (int)data_len;
+
+	switch(order) {
+		case 0:
+			for(i = 0; i < idata_len; i++)
+				data[i] = residual[i];
+			break;
+		case 1:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + data[i-1];
+			break;
+		case 2:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 2*data[i-1] - data[i-2];
+			break;
+		case 3:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 3*data[i-1] - 3*data[i-2] + data[i-3];
+			break;
+		case 4:
+			for(i = 0; i < idata_len; i++)
+				data[i] = (FLAC__int64)residual[i] + 4*data[i-1] - 6*data[i-2] + 4*data[i-3] - data[i-4];
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+}

extern/flac/src/libFLAC/fixed_intrin_avx2.c

@@ -0,0 +1,343 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/fixed.h"
+#ifdef FLAC__AVX2_SUPPORTED
+
+#include <immintrin.h>
+#include <math.h>
+#include "private/macros.h"
+#include "share/compat.h"
+#include "FLAC/assert.h"
+
+#ifdef local_abs
+#undef local_abs
+#endif
+#define local_abs(x) ((uint32_t)((x)<0? -(x) : (x)))
+
+FLAC__SSE_TARGET("avx2")
+uint32_t FLAC__fixed_compute_best_predictor_wide_intrin_avx2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
+{
+	FLAC__uint64 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
+	FLAC__int32 i, data_len_int;
+	uint32_t order;
+	__m256i total_err0, total_err1, total_err2, total_err3, total_err4;
+	__m256i prev_err0,  prev_err1,  prev_err2,  prev_err3;
+	__m256i tempA, tempB, bitmask;
+	FLAC__int64 data_scalar[4];
+	FLAC__int64 prev_err0_scalar[4];
+	FLAC__int64 prev_err1_scalar[4];
+	FLAC__int64 prev_err2_scalar[4];
+	FLAC__int64 prev_err3_scalar[4];
+	total_err0 = _mm256_setzero_si256();
+	total_err1 = _mm256_setzero_si256();
+	total_err2 = _mm256_setzero_si256();
+	total_err3 = _mm256_setzero_si256();
+	total_err4 = _mm256_setzero_si256();
+	data_len_int = data_len;
+
+	for(i = 0; i < 4; i++){
+		prev_err0_scalar[i] = data[-1+i*(data_len_int/4)];
+		prev_err1_scalar[i] = data[-1+i*(data_len_int/4)] - data[-2+i*(data_len_int/4)];
+		prev_err2_scalar[i] = prev_err1_scalar[i] - (data[-2+i*(data_len_int/4)] - data[-3+i*(data_len_int/4)]);
+		prev_err3_scalar[i] = prev_err2_scalar[i] - (data[-2+i*(data_len_int/4)] - 2*data[-3+i*(data_len_int/4)] + data[-4+i*(data_len_int/4)]);
+	}
+	prev_err0 = _mm256_loadu_si256((const __m256i*)(void*)prev_err0_scalar);
+	prev_err1 = _mm256_loadu_si256((const __m256i*)(void*)prev_err1_scalar);
+	prev_err2 = _mm256_loadu_si256((const __m256i*)(void*)prev_err2_scalar);
+	prev_err3 = _mm256_loadu_si256((const __m256i*)(void*)prev_err3_scalar);
+	for(i = 0; i < data_len_int / 4; i++){
+		data_scalar[0] = data[i];
+		data_scalar[1] = data[i+data_len/4];
+		data_scalar[2] = data[i+2*data_len/4];
+		data_scalar[3] = data[i+3*data_len/4];
+		tempA = _mm256_loadu_si256((const __m256i*)(void*)data_scalar);
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempA);
+		tempB = _mm256_xor_si256(tempA, bitmask);
+		tempB = _mm256_sub_epi64(tempB, bitmask);
+		total_err0 = _mm256_add_epi64(total_err0,tempB);
+		tempB = _mm256_sub_epi64(tempA,prev_err0);
+		prev_err0 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempB);
+		tempA = _mm256_xor_si256(tempB, bitmask);
+		tempA = _mm256_sub_epi64(tempA, bitmask);
+		total_err1 = _mm256_add_epi64(total_err1,tempA);
+		tempA = _mm256_sub_epi64(tempB,prev_err1);
+		prev_err1 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempA);
+		tempB = _mm256_xor_si256(tempA, bitmask);
+		tempB = _mm256_sub_epi64(tempB, bitmask);
+		total_err2 = _mm256_add_epi64(total_err2,tempB);
+		tempB = _mm256_sub_epi64(tempA,prev_err2);
+		prev_err2 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempB);
+		tempA = _mm256_xor_si256(tempB, bitmask);
+		tempA = _mm256_sub_epi64(tempA, bitmask);
+		total_err3 = _mm256_add_epi64(total_err3,tempA);
+		tempA = _mm256_sub_epi64(tempB,prev_err3);
+		prev_err3 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempA);
+		tempB = _mm256_xor_si256(tempA, bitmask);
+		tempB = _mm256_sub_epi64(tempB, bitmask);
+		total_err4 = _mm256_add_epi64(total_err4,tempB);
+	}
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err0);
+	total_error_0 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err1);
+	total_error_1 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err2);
+	total_error_2 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err3);
+	total_error_3 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err4);
+	total_error_4 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+
+	/* Ignore the remainder, we're ignore the first few samples too */
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+
+	return order;
+}
+
+#ifdef local_abs64
+#undef local_abs64
+#endif
+#define local_abs64(x) ((uint64_t)((x)<0? -(x) : (x)))
+
+#define CHECK_ORDER_IS_VALID(macro_order)  \
+if(shadow_error_##macro_order <= INT32_MAX) { \
+	if(total_error_##macro_order < smallest_error) { \
+		order = macro_order; \
+		smallest_error = total_error_##macro_order ; \
+	} \
+	residual_bits_per_sample[ macro_order ] = (float)((total_error_##macro_order > 0) ? log(M_LN2 * (double)total_error_##macro_order / (double)data_len) / M_LN2 : 0.0); \
+} \
+else \
+	residual_bits_per_sample[ macro_order ] = 34.0f;
+
+FLAC__SSE_TARGET("avx2")
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_intrin_avx2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
+{
+	FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0, smallest_error = UINT64_MAX;
+	FLAC__uint64 shadow_error_0 = 0, shadow_error_1 = 0, shadow_error_2 = 0, shadow_error_3 = 0, shadow_error_4 = 0;
+	FLAC__uint64 error_0, error_1, error_2, error_3, error_4;
+	FLAC__int32 i, data_len_int;
+	uint32_t order = 0;
+	__m256i total_err0, total_err1, total_err2, total_err3, total_err4;
+	__m256i shadow_err0, shadow_err1, shadow_err2, shadow_err3, shadow_err4;
+	__m256i prev_err0,  prev_err1,  prev_err2,  prev_err3;
+	__m256i tempA, tempB, bitmask;
+	FLAC__int64 data_scalar[4];
+	FLAC__int64 prev_err0_scalar[4];
+	FLAC__int64 prev_err1_scalar[4];
+	FLAC__int64 prev_err2_scalar[4];
+	FLAC__int64 prev_err3_scalar[4];
+	total_err0 = _mm256_setzero_si256();
+	total_err1 = _mm256_setzero_si256();
+	total_err2 = _mm256_setzero_si256();
+	total_err3 = _mm256_setzero_si256();
+	total_err4 = _mm256_setzero_si256();
+	shadow_err0 = _mm256_setzero_si256();
+	shadow_err1 = _mm256_setzero_si256();
+	shadow_err2 = _mm256_setzero_si256();
+	shadow_err3 = _mm256_setzero_si256();
+	shadow_err4 = _mm256_setzero_si256();
+	data_len_int = data_len;
+
+	/* First take care of preceding samples */
+	for(i = -4; i < 0; i++) {
+		error_0 = local_abs64((FLAC__int64)data[i]);
+		error_1 = (i > -4) ? local_abs64((FLAC__int64)data[i] - data[i-1]) : 0 ;
+		error_2 = (i > -3) ? local_abs64((FLAC__int64)data[i] - 2 * (FLAC__int64)data[i-1] + data[i-2]) : 0;
+		error_3 = (i > -2) ? local_abs64((FLAC__int64)data[i] - 3 * (FLAC__int64)data[i-1] + 3 * (FLAC__int64)data[i-2] - data[i-3]) : 0;
+
+		total_error_0 += error_0;
+		total_error_1 += error_1;
+		total_error_2 += error_2;
+		total_error_3 += error_3;
+
+		shadow_error_0 |= error_0;
+		shadow_error_1 |= error_1;
+		shadow_error_2 |= error_2;
+		shadow_error_3 |= error_3;
+	}
+
+	for(i = 0; i < 4; i++){
+		prev_err0_scalar[i] = data[-1+i*(data_len_int/4)];
+		prev_err1_scalar[i] = (FLAC__int64)(data[-1+i*(data_len_int/4)]) - data[-2+i*(data_len_int/4)];
+		prev_err2_scalar[i] = prev_err1_scalar[i] - ((FLAC__int64)(data[-2+i*(data_len_int/4)]) - data[-3+i*(data_len_int/4)]);
+		prev_err3_scalar[i] = prev_err2_scalar[i] - ((FLAC__int64)(data[-2+i*(data_len_int/4)]) - 2*(FLAC__int64)(data[-3+i*(data_len_int/4)]) + data[-4+i*(data_len_int/4)]);
+	}
+	prev_err0 = _mm256_loadu_si256((const __m256i*)(void*)prev_err0_scalar);
+	prev_err1 = _mm256_loadu_si256((const __m256i*)(void*)prev_err1_scalar);
+	prev_err2 = _mm256_loadu_si256((const __m256i*)(void*)prev_err2_scalar);
+	prev_err3 = _mm256_loadu_si256((const __m256i*)(void*)prev_err3_scalar);
+	for(i = 0; i < data_len_int / 4; i++){
+		data_scalar[0] = data[i];
+		data_scalar[1] = data[i+data_len/4];
+		data_scalar[2] = data[i+2*data_len/4];
+		data_scalar[3] = data[i+3*data_len/4];
+		tempA = _mm256_loadu_si256((const __m256i*)(void*)data_scalar);
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempA);
+		tempB = _mm256_xor_si256(tempA, bitmask);
+		tempB = _mm256_sub_epi64(tempB, bitmask);
+		total_err0 = _mm256_add_epi64(total_err0,tempB);
+		shadow_err0 = _mm256_or_si256(shadow_err0,tempB);
+		tempB = _mm256_sub_epi64(tempA,prev_err0);
+		prev_err0 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempB);
+		tempA = _mm256_xor_si256(tempB, bitmask);
+		tempA = _mm256_sub_epi64(tempA, bitmask);
+		total_err1 = _mm256_add_epi64(total_err1,tempA);
+		shadow_err1 = _mm256_or_si256(shadow_err1,tempA);
+		tempA = _mm256_sub_epi64(tempB,prev_err1);
+		prev_err1 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempA);
+		tempB = _mm256_xor_si256(tempA, bitmask);
+		tempB = _mm256_sub_epi64(tempB, bitmask);
+		total_err2 = _mm256_add_epi64(total_err2,tempB);
+		shadow_err2 = _mm256_or_si256(shadow_err2,tempB);
+		tempB = _mm256_sub_epi64(tempA,prev_err2);
+		prev_err2 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempB);
+		tempA = _mm256_xor_si256(tempB, bitmask);
+		tempA = _mm256_sub_epi64(tempA, bitmask);
+		total_err3 = _mm256_add_epi64(total_err3,tempA);
+		shadow_err3 = _mm256_or_si256(shadow_err3,tempA);
+		tempA = _mm256_sub_epi64(tempB,prev_err3);
+		prev_err3 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm256_cmpgt_epi64(_mm256_set1_epi64x(0), tempA);
+		tempB = _mm256_xor_si256(tempA, bitmask);
+		tempB = _mm256_sub_epi64(tempB, bitmask);
+		total_err4 = _mm256_add_epi64(total_err4,tempB);
+		shadow_err4 = _mm256_or_si256(shadow_err4,tempB);
+	}
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err0);
+	total_error_0 += data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err1);
+	total_error_1 += data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err2);
+	total_error_2 += data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err3);
+	total_error_3 += data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,total_err4);
+	total_error_4 += data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,shadow_err0);
+	shadow_error_0 |= data_scalar[0] | data_scalar[1] | data_scalar[2] | data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,shadow_err1);
+	shadow_error_1 |= data_scalar[0] | data_scalar[1] | data_scalar[2] | data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,shadow_err2);
+	shadow_error_2 |= data_scalar[0] | data_scalar[1] | data_scalar[2] | data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,shadow_err3);
+	shadow_error_3 |= data_scalar[0] | data_scalar[1] | data_scalar[2] | data_scalar[3];
+	_mm256_storeu_si256((__m256i*)(void*)data_scalar,shadow_err4);
+	shadow_error_4 |= data_scalar[0] | data_scalar[1] | data_scalar[2] | data_scalar[3];
+
+	/* Take care of remaining sample */
+	for(i = (data_len/4)*4; i < data_len_int; i++) {
+		error_0 = local_abs64((FLAC__int64)data[i]);
+		error_1 = local_abs64((FLAC__int64)data[i] - data[i-1]);
+		error_2 = local_abs64((FLAC__int64)data[i] - 2 * (FLAC__int64)data[i-1] + data[i-2]);
+		error_3 = local_abs64((FLAC__int64)data[i] - 3 * (FLAC__int64)data[i-1] + 3 * (FLAC__int64)data[i-2] - data[i-3]);
+		error_4 = local_abs64((FLAC__int64)data[i] - 4 * (FLAC__int64)data[i-1] + 6 * (FLAC__int64)data[i-2] - 4 * (FLAC__int64)data[i-3] + data[i-4]);
+
+		total_error_0 += error_0;
+		total_error_1 += error_1;
+		total_error_2 += error_2;
+		total_error_3 += error_3;
+		total_error_4 += error_4;
+
+		shadow_error_0 |= error_0;
+		shadow_error_1 |= error_1;
+		shadow_error_2 |= error_2;
+		shadow_error_3 |= error_3;
+		shadow_error_4 |= error_4;
+	}
+
+
+	CHECK_ORDER_IS_VALID(0);
+	CHECK_ORDER_IS_VALID(1);
+	CHECK_ORDER_IS_VALID(2);
+	CHECK_ORDER_IS_VALID(3);
+	CHECK_ORDER_IS_VALID(4);
+
+	return order;
+}
+
+#endif /* FLAC__AVX2_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */

extern/flac/src/libFLAC/fixed_intrin_sse2.c

@@ -0,0 +1,194 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
+#include "private/fixed.h"
+#ifdef FLAC__SSE2_SUPPORTED
+
+#include <emmintrin.h> /* SSE2 */
+#include <math.h>
+#include "private/macros.h"
+#include "share/compat.h"
+#include "FLAC/assert.h"
+
+#ifdef FLAC__CPU_IA32
+#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
+#else
+#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
+#endif
+
+#ifdef local_abs
+#undef local_abs
+#endif
+#define local_abs(x) ((uint32_t)((x)<0? -(x) : (x)))
+
+FLAC__SSE_TARGET("sse2")
+uint32_t FLAC__fixed_compute_best_predictor_intrin_sse2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
+{
+	FLAC__uint32 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
+	FLAC__int32 i, data_len_int;
+	uint32_t order;
+	__m128i total_err0, total_err1, total_err2, total_err3, total_err4;
+	__m128i prev_err0,  prev_err1,  prev_err2,  prev_err3;
+	__m128i tempA, tempB, bitmask;
+	FLAC__int32 data_scalar[4];
+	FLAC__int32 prev_err0_scalar[4];
+	FLAC__int32 prev_err1_scalar[4];
+	FLAC__int32 prev_err2_scalar[4];
+	FLAC__int32 prev_err3_scalar[4];
+	total_err0 = _mm_setzero_si128();
+	total_err1 = _mm_setzero_si128();
+	total_err2 = _mm_setzero_si128();
+	total_err3 = _mm_setzero_si128();
+	total_err4 = _mm_setzero_si128();
+	data_len_int = data_len;
+
+	for(i = 0; i < 4; i++){
+		prev_err0_scalar[i] = data[-1+i*(data_len_int/4)];
+		prev_err1_scalar[i] = data[-1+i*(data_len_int/4)] - data[-2+i*(data_len_int/4)];
+		prev_err2_scalar[i] = prev_err1_scalar[i] - (data[-2+i*(data_len_int/4)] - data[-3+i*(data_len_int/4)]);
+		prev_err3_scalar[i] = prev_err2_scalar[i] - (data[-2+i*(data_len_int/4)] - 2*data[-3+i*(data_len_int/4)] + data[-4+i*(data_len_int/4)]);
+	}
+	prev_err0 = _mm_loadu_si128((const __m128i*)prev_err0_scalar);
+	prev_err1 = _mm_loadu_si128((const __m128i*)prev_err1_scalar);
+	prev_err2 = _mm_loadu_si128((const __m128i*)prev_err2_scalar);
+	prev_err3 = _mm_loadu_si128((const __m128i*)prev_err3_scalar);
+	for(i = 0; i < data_len_int / 4; i++){
+		data_scalar[0] = data[i];
+		data_scalar[1] = data[i+data_len/4];
+		data_scalar[2] = data[i+2*(data_len/4)];
+		data_scalar[3] = data[i+3*(data_len/4)];
+		tempA = _mm_loadu_si128((const __m128i*)data_scalar);
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm_srai_epi32(tempA, 31);
+		tempB   = _mm_xor_si128(tempA, bitmask);
+		tempB   = _mm_sub_epi32(tempB, bitmask);
+		total_err0 = _mm_add_epi32(total_err0,tempB);
+		tempB = _mm_sub_epi32(tempA,prev_err0);
+		prev_err0 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm_srai_epi32(tempB, 31);
+		tempA   = _mm_xor_si128(tempB, bitmask);
+		tempA   = _mm_sub_epi32(tempA, bitmask);
+		total_err1 = _mm_add_epi32(total_err1,tempA);
+		tempA = _mm_sub_epi32(tempB,prev_err1);
+		prev_err1 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm_srai_epi32(tempA, 31);
+		tempB   = _mm_xor_si128(tempA, bitmask);
+		tempB   = _mm_sub_epi32(tempB, bitmask);
+		total_err2 = _mm_add_epi32(total_err2,tempB);
+		tempB = _mm_sub_epi32(tempA,prev_err2);
+		prev_err2 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm_srai_epi32(tempB, 31);
+		tempA   = _mm_xor_si128(tempB, bitmask);
+		tempA   = _mm_sub_epi32(tempA, bitmask);
+		total_err3 = _mm_add_epi32(total_err3,tempA);
+		tempA = _mm_sub_epi32(tempB,prev_err3);
+		prev_err3 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm_srai_epi32(tempA, 31);
+		tempB   = _mm_xor_si128(tempA, bitmask);
+		tempB   = _mm_sub_epi32(tempB, bitmask);
+		total_err4 = _mm_add_epi32(total_err4,tempB);
+	}
+	_mm_storeu_si128((__m128i*)data_scalar,total_err0);
+	total_error_0 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err1);
+	total_error_1 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err2);
+	total_error_2 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err3);
+	total_error_3 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err4);
+	total_error_4 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+
+	/* Now the remainder of samples needs to be processed */
+	i *= 4;
+	if(data_len % 4 > 0){
+		FLAC__int32 last_error_0 = data[i-1];
+		FLAC__int32 last_error_1 = data[i-1] - data[i-2];
+		FLAC__int32 last_error_2 = last_error_1 - (data[i-2] - data[i-3]);
+		FLAC__int32 last_error_3 = last_error_2 - (data[i-2] - 2*data[i-3] + data[i-4]);
+		FLAC__int32 error, save;
+		for(; i < data_len_int; i++) {
+			error  = data[i]     ; total_error_0 += local_abs(error);                      save = error;
+			error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
+			error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
+			error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
+			error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
+		}
+	}
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+
+	return order;
+}
+
+#endif /* FLAC__SSE2_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */

extern/flac/src/libFLAC/fixed_intrin_sse42.c

@@ -0,0 +1,223 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/fixed.h"
+#ifdef FLAC__SSE4_2_SUPPORTED
+
+#include <nmmintrin.h> /* SSE4.2 */
+#include <math.h>
+#include "private/macros.h"
+#include "share/compat.h"
+#include "FLAC/assert.h"
+
+#ifdef local_abs64
+#undef local_abs64
+#endif
+#define local_abs64(x) ((uint64_t)((x)<0? -(x) : (x)))
+
+#define CHECK_ORDER_IS_VALID(macro_order)  \
+if(shadow_error_##macro_order <= INT32_MAX) { \
+	if(total_error_##macro_order < smallest_error) { \
+		order = macro_order; \
+		smallest_error = total_error_##macro_order ; \
+	} \
+	residual_bits_per_sample[ macro_order ] = (float)((total_error_##macro_order > 0) ? log(M_LN2 * (double)total_error_##macro_order / (double)data_len) / M_LN2 : 0.0); \
+} \
+else \
+	residual_bits_per_sample[ macro_order ] = 34.0f;
+
+FLAC__SSE_TARGET("sse4.2")
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_intrin_sse42(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
+{
+	FLAC__uint64 total_error_0 = 0, total_error_1 = 0, total_error_2 = 0, total_error_3 = 0, total_error_4 = 0, smallest_error = UINT64_MAX;
+	FLAC__uint64 shadow_error_0 = 0, shadow_error_1 = 0, shadow_error_2 = 0, shadow_error_3 = 0, shadow_error_4 = 0;
+	FLAC__uint64 error_0, error_1, error_2, error_3, error_4;
+	FLAC__int32 i, data_len_int;
+	uint32_t order = 0;
+	__m128i total_err0, total_err1, total_err2, total_err3, total_err4;
+	__m128i shadow_err0, shadow_err1, shadow_err2, shadow_err3, shadow_err4;
+	__m128i prev_err0,  prev_err1,  prev_err2,  prev_err3;
+	__m128i tempA, tempB, bitmask;
+	FLAC__int64 data_scalar[2];
+	FLAC__int64 prev_err0_scalar[2];
+	FLAC__int64 prev_err1_scalar[2];
+	FLAC__int64 prev_err2_scalar[2];
+	FLAC__int64 prev_err3_scalar[2];
+	total_err0 = _mm_setzero_si128();
+	total_err1 = _mm_setzero_si128();
+	total_err2 = _mm_setzero_si128();
+	total_err3 = _mm_setzero_si128();
+	total_err4 = _mm_setzero_si128();
+	shadow_err0 = _mm_setzero_si128();
+	shadow_err1 = _mm_setzero_si128();
+	shadow_err2 = _mm_setzero_si128();
+	shadow_err3 = _mm_setzero_si128();
+	shadow_err4 = _mm_setzero_si128();
+	data_len_int = data_len;
+
+	/* First take care of preceding samples */
+	for(i = -4; i < 0; i++) {
+		error_0 = local_abs64((FLAC__int64)data[i]);
+		error_1 = (i > -4) ? local_abs64((FLAC__int64)data[i] - data[i-1]) : 0 ;
+		error_2 = (i > -3) ? local_abs64((FLAC__int64)data[i] - 2 * (FLAC__int64)data[i-1] + data[i-2]) : 0;
+		error_3 = (i > -2) ? local_abs64((FLAC__int64)data[i] - 3 * (FLAC__int64)data[i-1] + 3 * (FLAC__int64)data[i-2] - data[i-3]) : 0;
+
+		total_error_0 += error_0;
+		total_error_1 += error_1;
+		total_error_2 += error_2;
+		total_error_3 += error_3;
+
+		shadow_error_0 |= error_0;
+		shadow_error_1 |= error_1;
+		shadow_error_2 |= error_2;
+		shadow_error_3 |= error_3;
+	}
+
+	for(i = 0; i < 2; i++){
+		prev_err0_scalar[i] = data[-1+i*(data_len_int/2)];
+		prev_err1_scalar[i] = (FLAC__int64)(data[-1+i*(data_len_int/2)]) - data[-2+i*(data_len_int/2)];
+		prev_err2_scalar[i] = prev_err1_scalar[i] - ((FLAC__int64)(data[-2+i*(data_len_int/2)]) - data[-3+i*(data_len_int/2)]);
+		prev_err3_scalar[i] = prev_err2_scalar[i] - ((FLAC__int64)(data[-2+i*(data_len_int/2)]) - 2*(FLAC__int64)(data[-3+i*(data_len_int/2)]) + data[-4+i*(data_len_int/2)]);
+	}
+	prev_err0 = _mm_loadu_si128((const __m128i*)prev_err0_scalar);
+	prev_err1 = _mm_loadu_si128((const __m128i*)prev_err1_scalar);
+	prev_err2 = _mm_loadu_si128((const __m128i*)prev_err2_scalar);
+	prev_err3 = _mm_loadu_si128((const __m128i*)prev_err3_scalar);
+	for(i = 0; i < data_len_int / 2; i++){
+		data_scalar[0] = data[i];
+		data_scalar[1] = data[i+data_len/2];
+		tempA = _mm_loadu_si128((const __m128i*)data_scalar);
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm_cmpgt_epi64(_mm_set1_epi64x(0), tempA);
+		tempB = _mm_xor_si128(tempA, bitmask);
+		tempB = _mm_sub_epi64(tempB, bitmask);
+		total_err0 = _mm_add_epi64(total_err0,tempB);
+		shadow_err0 = _mm_or_si128(shadow_err0,tempB);
+		tempB = _mm_sub_epi64(tempA,prev_err0);
+		prev_err0 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm_cmpgt_epi64(_mm_set1_epi64x(0), tempB);
+		tempA = _mm_xor_si128(tempB, bitmask);
+		tempA = _mm_sub_epi64(tempA, bitmask);
+		total_err1 = _mm_add_epi64(total_err1,tempA);
+		shadow_err1 = _mm_or_si128(shadow_err1,tempA);
+		tempA = _mm_sub_epi64(tempB,prev_err1);
+		prev_err1 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm_cmpgt_epi64(_mm_set1_epi64x(0), tempA);
+		tempB = _mm_xor_si128(tempA, bitmask);
+		tempB = _mm_sub_epi64(tempB, bitmask);
+		total_err2 = _mm_add_epi64(total_err2,tempB);
+		shadow_err2 = _mm_or_si128(shadow_err2,tempB);
+		tempB = _mm_sub_epi64(tempA,prev_err2);
+		prev_err2 = tempA;
+		/* Next three intrinsics calculate tempA as abs of tempB */
+		bitmask = _mm_cmpgt_epi64(_mm_set1_epi64x(0), tempB);
+		tempA = _mm_xor_si128(tempB, bitmask);
+		tempA = _mm_sub_epi64(tempA, bitmask);
+		total_err3 = _mm_add_epi64(total_err3,tempA);
+		shadow_err3 = _mm_or_si128(shadow_err3,tempA);
+		tempA = _mm_sub_epi64(tempB,prev_err3);
+		prev_err3 = tempB;
+		/* Next three intrinsics calculate tempB as abs of tempA */
+		bitmask = _mm_cmpgt_epi64(_mm_set1_epi64x(0), tempA);
+		tempB = _mm_xor_si128(tempA, bitmask);
+		tempB = _mm_sub_epi64(tempB, bitmask);
+		total_err4 = _mm_add_epi64(total_err4,tempB);
+		shadow_err4 = _mm_or_si128(shadow_err4,tempB);
+	}
+	_mm_storeu_si128((__m128i*)data_scalar,total_err0);
+	total_error_0 += data_scalar[0] + data_scalar[1];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err1);
+	total_error_1 += data_scalar[0] + data_scalar[1];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err2);
+	total_error_2 += data_scalar[0] + data_scalar[1];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err3);
+	total_error_3 += data_scalar[0] + data_scalar[1];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err4);
+	total_error_4 += data_scalar[0] + data_scalar[1];
+	_mm_storeu_si128((__m128i*)data_scalar,shadow_err0);
+	shadow_error_0 |= data_scalar[0] | data_scalar[1];
+	_mm_storeu_si128((__m128i*)data_scalar,shadow_err1);
+	shadow_error_1 |= data_scalar[0] | data_scalar[1];
+	_mm_storeu_si128((__m128i*)data_scalar,shadow_err2);
+	shadow_error_2 |= data_scalar[0] | data_scalar[1];
+	_mm_storeu_si128((__m128i*)data_scalar,shadow_err3);
+	shadow_error_3 |= data_scalar[0] | data_scalar[1];
+	_mm_storeu_si128((__m128i*)data_scalar,shadow_err4);
+	shadow_error_4 |= data_scalar[0] | data_scalar[1];
+
+	/* Take care of remaining sample */
+	if(data_len_int % 2 > 0) {
+		i += data_len/2;
+		error_0 = local_abs64((FLAC__int64)data[i]);
+		error_1 = local_abs64((FLAC__int64)data[i] - data[i-1]);
+		error_2 = local_abs64((FLAC__int64)data[i] - 2 * (FLAC__int64)data[i-1] + data[i-2]);
+		error_3 = local_abs64((FLAC__int64)data[i] - 3 * (FLAC__int64)data[i-1] + 3 * (FLAC__int64)data[i-2] - data[i-3]);
+		error_4 = local_abs64((FLAC__int64)data[i] - 4 * (FLAC__int64)data[i-1] + 6 * (FLAC__int64)data[i-2] - 4 * (FLAC__int64)data[i-3] + data[i-4]);
+
+		total_error_0 += error_0;
+		total_error_1 += error_1;
+		total_error_2 += error_2;
+		total_error_3 += error_3;
+		total_error_4 += error_4;
+
+		shadow_error_0 |= error_0;
+		shadow_error_1 |= error_1;
+		shadow_error_2 |= error_2;
+		shadow_error_3 |= error_3;
+		shadow_error_4 |= error_4;
+	}
+
+
+	CHECK_ORDER_IS_VALID(0);
+	CHECK_ORDER_IS_VALID(1);
+	CHECK_ORDER_IS_VALID(2);
+	CHECK_ORDER_IS_VALID(3);
+	CHECK_ORDER_IS_VALID(4);
+
+	return order;
+}
+
+#endif /* FLAC__SSE4_2_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */

extern/flac/src/libFLAC/fixed_intrin_ssse3.c

@@ -0,0 +1,179 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/fixed.h"
+#ifdef FLAC__SSSE3_SUPPORTED
+
+#include <tmmintrin.h> /* SSSE3 */
+#include <math.h>
+#include "private/macros.h"
+#include "share/compat.h"
+#include "FLAC/assert.h"
+
+#ifdef FLAC__CPU_IA32
+#define m128i_to_i64(dest, src) _mm_storel_epi64((__m128i*)&dest, src)
+#else
+#define m128i_to_i64(dest, src) dest = _mm_cvtsi128_si64(src)
+#endif
+
+#ifdef local_abs
+#undef local_abs
+#endif
+#define local_abs(x) ((uint32_t)((x)<0? -(x) : (x)))
+
+FLAC__SSE_TARGET("ssse3")
+uint32_t FLAC__fixed_compute_best_predictor_intrin_ssse3(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1])
+{
+	FLAC__uint32 total_error_0, total_error_1, total_error_2, total_error_3, total_error_4;
+	FLAC__int32 i, data_len_int;
+	uint32_t order;
+	__m128i total_err0, total_err1, total_err2, total_err3, total_err4;
+	__m128i prev_err0,  prev_err1,  prev_err2,  prev_err3;
+	__m128i tempA, tempB;
+	FLAC__int32 data_scalar[4];
+	FLAC__int32 prev_err0_scalar[4];
+	FLAC__int32 prev_err1_scalar[4];
+	FLAC__int32 prev_err2_scalar[4];
+	FLAC__int32 prev_err3_scalar[4];
+	total_err0 = _mm_setzero_si128();
+	total_err1 = _mm_setzero_si128();
+	total_err2 = _mm_setzero_si128();
+	total_err3 = _mm_setzero_si128();
+	total_err4 = _mm_setzero_si128();
+	data_len_int = data_len;
+
+	for(i = 0; i < 4; i++){
+		prev_err0_scalar[i] = data[-1+i*(data_len_int/4)];
+		prev_err1_scalar[i] = data[-1+i*(data_len_int/4)] - data[-2+i*(data_len_int/4)];
+		prev_err2_scalar[i] = prev_err1_scalar[i] - (data[-2+i*(data_len_int/4)] - data[-3+i*(data_len_int/4)]);
+		prev_err3_scalar[i] = prev_err2_scalar[i] - (data[-2+i*(data_len_int/4)] - 2*data[-3+i*(data_len_int/4)] + data[-4+i*(data_len_int/4)]);
+	}
+	prev_err0 = _mm_loadu_si128((const __m128i*)prev_err0_scalar);
+	prev_err1 = _mm_loadu_si128((const __m128i*)prev_err1_scalar);
+	prev_err2 = _mm_loadu_si128((const __m128i*)prev_err2_scalar);
+	prev_err3 = _mm_loadu_si128((const __m128i*)prev_err3_scalar);
+	for(i = 0; i < data_len_int / 4; i++){
+		data_scalar[0] = data[i];
+		data_scalar[1] = data[i+data_len/4];
+		data_scalar[2] = data[i+2*(data_len/4)];
+		data_scalar[3] = data[i+3*(data_len/4)];
+		tempA = _mm_loadu_si128((const __m128i*)data_scalar);
+		tempB = _mm_abs_epi32(tempA);
+		total_err0 = _mm_add_epi32(total_err0,tempB);
+		tempB = _mm_sub_epi32(tempA,prev_err0);
+		prev_err0 = tempA;
+		tempA = _mm_abs_epi32(tempB);
+		total_err1 = _mm_add_epi32(total_err1,tempA);
+		tempA = _mm_sub_epi32(tempB,prev_err1);
+		prev_err1 = tempB;
+		tempB = _mm_abs_epi32(tempA);
+		total_err2 = _mm_add_epi32(total_err2,tempB);
+		tempB = _mm_sub_epi32(tempA,prev_err2);
+		prev_err2 = tempA;
+		tempA = _mm_abs_epi32(tempB);
+		total_err3 = _mm_add_epi32(total_err3,tempA);
+		tempA = _mm_sub_epi32(tempB,prev_err3);
+		prev_err3 = tempB;
+		tempB = _mm_abs_epi32(tempA);
+		total_err4 = _mm_add_epi32(total_err4,tempB);
+	}
+	_mm_storeu_si128((__m128i*)data_scalar,total_err0);
+	total_error_0 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err1);
+	total_error_1 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err2);
+	total_error_2 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err3);
+	total_error_3 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+	_mm_storeu_si128((__m128i*)data_scalar,total_err4);
+	total_error_4 = data_scalar[0] + data_scalar[1] + data_scalar[2] + data_scalar[3];
+
+	/* Now the remainder of samples needs to be processed */
+	i *= 4;
+	if(data_len % 4 > 0){
+		FLAC__int32 last_error_0 = data[i-1];
+		FLAC__int32 last_error_1 = data[i-1] - data[i-2];
+		FLAC__int32 last_error_2 = last_error_1 - (data[i-2] - data[i-3]);
+		FLAC__int32 last_error_3 = last_error_2 - (data[i-2] - 2*data[i-3] + data[i-4]);
+		FLAC__int32 error, save;
+		for(; i < data_len_int; i++) {
+			error  = data[i]     ; total_error_0 += local_abs(error);                      save = error;
+			error -= last_error_0; total_error_1 += local_abs(error); last_error_0 = save; save = error;
+			error -= last_error_1; total_error_2 += local_abs(error); last_error_1 = save; save = error;
+			error -= last_error_2; total_error_3 += local_abs(error); last_error_2 = save; save = error;
+			error -= last_error_3; total_error_4 += local_abs(error); last_error_3 = save;
+		}
+	}
+
+	/* prefer lower order */
+	if(total_error_0 <= flac_min(flac_min(flac_min(total_error_1, total_error_2), total_error_3), total_error_4))
+		order = 0;
+	else if(total_error_1 <= flac_min(flac_min(total_error_2, total_error_3), total_error_4))
+		order = 1;
+	else if(total_error_2 <= flac_min(total_error_3, total_error_4))
+		order = 2;
+	else if(total_error_3 <= total_error_4)
+		order = 3;
+	else
+		order = 4;
+
+	/* Estimate the expected number of bits per residual signal sample. */
+	/* 'total_error*' is linearly related to the variance of the residual */
+	/* signal, so we use it directly to compute E(|x|) */
+	FLAC__ASSERT(data_len > 0 || total_error_0 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_1 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_2 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_3 == 0);
+	FLAC__ASSERT(data_len > 0 || total_error_4 == 0);
+
+	residual_bits_per_sample[0] = (float)((total_error_0 > 0) ? log(M_LN2 * (double)total_error_0 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[1] = (float)((total_error_1 > 0) ? log(M_LN2 * (double)total_error_1 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[2] = (float)((total_error_2 > 0) ? log(M_LN2 * (double)total_error_2 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[3] = (float)((total_error_3 > 0) ? log(M_LN2 * (double)total_error_3 / (double)data_len) / M_LN2 : 0.0);
+	residual_bits_per_sample[4] = (float)((total_error_4 > 0) ? log(M_LN2 * (double)total_error_4 / (double)data_len) / M_LN2 : 0.0);
+
+	return order;
+}
+
+#endif /* FLAC__SSSE3_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */

extern/flac/src/libFLAC/flac.pc.in

@@ -0,0 +1,12 @@
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+
+Name: FLAC
+Description: Free Lossless Audio Codec Library
+Version: @VERSION@
+Requires.private: @OGG_PACKAGE@
+Libs: -L${libdir} -lFLAC
+Libs.private: -lm @FLAC_STATIC_LIBS@
+Cflags: -I${includedir}

extern/flac/src/libFLAC/float.c

@@ -0,0 +1,302 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "FLAC/assert.h"
+#include "share/compat.h"
+#include "private/float.h"
+
+#ifdef FLAC__INTEGER_ONLY_LIBRARY
+
+const FLAC__fixedpoint FLAC__FP_ZERO = 0;
+const FLAC__fixedpoint FLAC__FP_ONE_HALF = 0x00008000;
+const FLAC__fixedpoint FLAC__FP_ONE = 0x00010000;
+const FLAC__fixedpoint FLAC__FP_LN2 = 45426;
+const FLAC__fixedpoint FLAC__FP_E = 178145;
+
+/* Lookup tables for Knuth's logarithm algorithm */
+#define LOG2_LOOKUP_PRECISION 16
+static const FLAC__uint32 log2_lookup[][LOG2_LOOKUP_PRECISION] = {
+	{
+		/*
+		 * 0 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00000001,
+		/* lg(4/3) = */ 0x00000000,
+		/* lg(8/7) = */ 0x00000000,
+		/* lg(16/15) = */ 0x00000000,
+		/* lg(32/31) = */ 0x00000000,
+		/* lg(64/63) = */ 0x00000000,
+		/* lg(128/127) = */ 0x00000000,
+		/* lg(256/255) = */ 0x00000000,
+		/* lg(512/511) = */ 0x00000000,
+		/* lg(1024/1023) = */ 0x00000000,
+		/* lg(2048/2047) = */ 0x00000000,
+		/* lg(4096/4095) = */ 0x00000000,
+		/* lg(8192/8191) = */ 0x00000000,
+		/* lg(16384/16383) = */ 0x00000000,
+		/* lg(32768/32767) = */ 0x00000000
+	},
+	{
+		/*
+		 * 4 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00000010,
+		/* lg(4/3) = */ 0x00000007,
+		/* lg(8/7) = */ 0x00000003,
+		/* lg(16/15) = */ 0x00000001,
+		/* lg(32/31) = */ 0x00000001,
+		/* lg(64/63) = */ 0x00000000,
+		/* lg(128/127) = */ 0x00000000,
+		/* lg(256/255) = */ 0x00000000,
+		/* lg(512/511) = */ 0x00000000,
+		/* lg(1024/1023) = */ 0x00000000,
+		/* lg(2048/2047) = */ 0x00000000,
+		/* lg(4096/4095) = */ 0x00000000,
+		/* lg(8192/8191) = */ 0x00000000,
+		/* lg(16384/16383) = */ 0x00000000,
+		/* lg(32768/32767) = */ 0x00000000
+	},
+	{
+		/*
+		 * 8 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00000100,
+		/* lg(4/3) = */ 0x0000006a,
+		/* lg(8/7) = */ 0x00000031,
+		/* lg(16/15) = */ 0x00000018,
+		/* lg(32/31) = */ 0x0000000c,
+		/* lg(64/63) = */ 0x00000006,
+		/* lg(128/127) = */ 0x00000003,
+		/* lg(256/255) = */ 0x00000001,
+		/* lg(512/511) = */ 0x00000001,
+		/* lg(1024/1023) = */ 0x00000000,
+		/* lg(2048/2047) = */ 0x00000000,
+		/* lg(4096/4095) = */ 0x00000000,
+		/* lg(8192/8191) = */ 0x00000000,
+		/* lg(16384/16383) = */ 0x00000000,
+		/* lg(32768/32767) = */ 0x00000000
+	},
+	{
+		/*
+		 * 12 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00001000,
+		/* lg(4/3) = */ 0x000006a4,
+		/* lg(8/7) = */ 0x00000315,
+		/* lg(16/15) = */ 0x0000017d,
+		/* lg(32/31) = */ 0x000000bc,
+		/* lg(64/63) = */ 0x0000005d,
+		/* lg(128/127) = */ 0x0000002e,
+		/* lg(256/255) = */ 0x00000017,
+		/* lg(512/511) = */ 0x0000000c,
+		/* lg(1024/1023) = */ 0x00000006,
+		/* lg(2048/2047) = */ 0x00000003,
+		/* lg(4096/4095) = */ 0x00000001,
+		/* lg(8192/8191) = */ 0x00000001,
+		/* lg(16384/16383) = */ 0x00000000,
+		/* lg(32768/32767) = */ 0x00000000
+	},
+	{
+		/*
+		 * 16 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00010000,
+		/* lg(4/3) = */ 0x00006a40,
+		/* lg(8/7) = */ 0x00003151,
+		/* lg(16/15) = */ 0x000017d6,
+		/* lg(32/31) = */ 0x00000bba,
+		/* lg(64/63) = */ 0x000005d1,
+		/* lg(128/127) = */ 0x000002e6,
+		/* lg(256/255) = */ 0x00000172,
+		/* lg(512/511) = */ 0x000000b9,
+		/* lg(1024/1023) = */ 0x0000005c,
+		/* lg(2048/2047) = */ 0x0000002e,
+		/* lg(4096/4095) = */ 0x00000017,
+		/* lg(8192/8191) = */ 0x0000000c,
+		/* lg(16384/16383) = */ 0x00000006,
+		/* lg(32768/32767) = */ 0x00000003
+	},
+	{
+		/*
+		 * 20 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x00100000,
+		/* lg(4/3) = */ 0x0006a3fe,
+		/* lg(8/7) = */ 0x00031513,
+		/* lg(16/15) = */ 0x00017d60,
+		/* lg(32/31) = */ 0x0000bb9d,
+		/* lg(64/63) = */ 0x00005d10,
+		/* lg(128/127) = */ 0x00002e59,
+		/* lg(256/255) = */ 0x00001721,
+		/* lg(512/511) = */ 0x00000b8e,
+		/* lg(1024/1023) = */ 0x000005c6,
+		/* lg(2048/2047) = */ 0x000002e3,
+		/* lg(4096/4095) = */ 0x00000171,
+		/* lg(8192/8191) = */ 0x000000b9,
+		/* lg(16384/16383) = */ 0x0000005c,
+		/* lg(32768/32767) = */ 0x0000002e
+	},
+	{
+		/*
+		 * 24 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x01000000,
+		/* lg(4/3) = */ 0x006a3fe6,
+		/* lg(8/7) = */ 0x00315130,
+		/* lg(16/15) = */ 0x0017d605,
+		/* lg(32/31) = */ 0x000bb9ca,
+		/* lg(64/63) = */ 0x0005d0fc,
+		/* lg(128/127) = */ 0x0002e58f,
+		/* lg(256/255) = */ 0x0001720e,
+		/* lg(512/511) = */ 0x0000b8d8,
+		/* lg(1024/1023) = */ 0x00005c61,
+		/* lg(2048/2047) = */ 0x00002e2d,
+		/* lg(4096/4095) = */ 0x00001716,
+		/* lg(8192/8191) = */ 0x00000b8b,
+		/* lg(16384/16383) = */ 0x000005c5,
+		/* lg(32768/32767) = */ 0x000002e3
+	},
+	{
+		/*
+		 * 28 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ 0x10000000,
+		/* lg(4/3) = */ 0x06a3fe5c,
+		/* lg(8/7) = */ 0x03151301,
+		/* lg(16/15) = */ 0x017d6049,
+		/* lg(32/31) = */ 0x00bb9ca6,
+		/* lg(64/63) = */ 0x005d0fba,
+		/* lg(128/127) = */ 0x002e58f7,
+		/* lg(256/255) = */ 0x001720da,
+		/* lg(512/511) = */ 0x000b8d87,
+		/* lg(1024/1023) = */ 0x0005c60b,
+		/* lg(2048/2047) = */ 0x0002e2d7,
+		/* lg(4096/4095) = */ 0x00017160,
+		/* lg(8192/8191) = */ 0x0000b8ad,
+		/* lg(16384/16383) = */ 0x00005c56,
+		/* lg(32768/32767) = */ 0x00002e2b
+	}
+};
+
+#if 0
+static const FLAC__uint64 log2_lookup_wide[] = {
+	{
+		/*
+		 * 32 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ FLAC__U64L(0x100000000),
+		/* lg(4/3) = */ FLAC__U64L(0x6a3fe5c6),
+		/* lg(8/7) = */ FLAC__U64L(0x31513015),
+		/* lg(16/15) = */ FLAC__U64L(0x17d60497),
+		/* lg(32/31) = */ FLAC__U64L(0x0bb9ca65),
+		/* lg(64/63) = */ FLAC__U64L(0x05d0fba2),
+		/* lg(128/127) = */ FLAC__U64L(0x02e58f74),
+		/* lg(256/255) = */ FLAC__U64L(0x01720d9c),
+		/* lg(512/511) = */ FLAC__U64L(0x00b8d875),
+		/* lg(1024/1023) = */ FLAC__U64L(0x005c60aa),
+		/* lg(2048/2047) = */ FLAC__U64L(0x002e2d72),
+		/* lg(4096/4095) = */ FLAC__U64L(0x00171600),
+		/* lg(8192/8191) = */ FLAC__U64L(0x000b8ad2),
+		/* lg(16384/16383) = */ FLAC__U64L(0x0005c55d),
+		/* lg(32768/32767) = */ FLAC__U64L(0x0002e2ac)
+	},
+	{
+		/*
+		 * 48 fraction bits
+		 */
+		/* undefined */ 0x00000000,
+		/* lg(2/1) = */ FLAC__U64L(0x1000000000000),
+		/* lg(4/3) = */ FLAC__U64L(0x6a3fe5c60429),
+		/* lg(8/7) = */ FLAC__U64L(0x315130157f7a),
+		/* lg(16/15) = */ FLAC__U64L(0x17d60496cfbb),
+		/* lg(32/31) = */ FLAC__U64L(0xbb9ca64ecac),
+		/* lg(64/63) = */ FLAC__U64L(0x5d0fba187cd),
+		/* lg(128/127) = */ FLAC__U64L(0x2e58f7441ee),
+		/* lg(256/255) = */ FLAC__U64L(0x1720d9c06a8),
+		/* lg(512/511) = */ FLAC__U64L(0xb8d8752173),
+		/* lg(1024/1023) = */ FLAC__U64L(0x5c60aa252e),
+		/* lg(2048/2047) = */ FLAC__U64L(0x2e2d71b0d8),
+		/* lg(4096/4095) = */ FLAC__U64L(0x1716001719),
+		/* lg(8192/8191) = */ FLAC__U64L(0xb8ad1de1b),
+		/* lg(16384/16383) = */ FLAC__U64L(0x5c55d640d),
+		/* lg(32768/32767) = */ FLAC__U64L(0x2e2abcf52)
+	}
+};
+#endif
+
+FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, uint32_t fracbits, uint32_t precision)
+{
+	const FLAC__uint32 ONE = (1u << fracbits);
+	const FLAC__uint32 *table = log2_lookup[fracbits >> 2];
+
+	FLAC__ASSERT(fracbits < 32);
+	FLAC__ASSERT((fracbits & 0x3) == 0);
+
+	if(x < ONE)
+		return 0;
+
+	if(precision > LOG2_LOOKUP_PRECISION)
+		precision = LOG2_LOOKUP_PRECISION;
+
+	/* Knuth's algorithm for computing logarithms, optimized for base-2 with lookup tables */
+	{
+		FLAC__uint32 y = 0;
+		FLAC__uint32 z = x >> 1, k = 1;
+		while (x > ONE && k < precision) {
+			if (x - z >= ONE) {
+				x -= z;
+				z = x >> k;
+				y += table[k];
+			}
+			else {
+				z >>= 1;
+				k++;
+			}
+		}
+		return y;
+	}
+}
+
+#endif /* defined FLAC__INTEGER_ONLY_LIBRARY */

extern/flac/src/libFLAC/format.c

@@ -0,0 +1,608 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <stdlib.h> /* for qsort() */
+#include <string.h> /* for memset() */
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+#include "private/format.h"
+#include "private/macros.h"
+
+#if (defined GIT_COMMIT_HASH && defined GIT_COMMIT_DATE)
+# ifdef GIT_COMMIT_TAG
+FLAC_API const char *FLAC__VERSION_STRING = GIT_COMMIT_TAG;
+FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC " GIT_COMMIT_TAG " " GIT_COMMIT_DATE;
+# else
+FLAC_API const char *FLAC__VERSION_STRING = "git-" GIT_COMMIT_HASH " " GIT_COMMIT_DATE;
+FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC git-" GIT_COMMIT_HASH " " GIT_COMMIT_DATE;
+# endif
+#else
+/* PACKAGE_VERSION should come from configure */
+FLAC_API const char *FLAC__VERSION_STRING = PACKAGE_VERSION;
+FLAC_API const char *FLAC__VENDOR_STRING = "reference libFLAC " PACKAGE_VERSION " 20250211";
+#endif
+
+FLAC_API const FLAC__byte FLAC__STREAM_SYNC_STRING[4] = { 'f','L','a','C' };
+FLAC_API const uint32_t FLAC__STREAM_SYNC = 0x664C6143;
+FLAC_API const uint32_t FLAC__STREAM_SYNC_LEN = 32; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN = 16; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN = 16; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN = 24; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN = 24; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN = 20; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN = 3; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN = 5; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN = 36; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_STREAMINFO_MD5SUM_LEN = 128; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_APPLICATION_ID_LEN = 32; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN = 16; /* bits */
+
+FLAC_API const FLAC__uint64 FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER = FLAC__U64L(0xffffffffffffffff);
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_VORBIS_COMMENT_ENTRY_LENGTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_VORBIS_COMMENT_NUM_COMMENTS_LEN = 32; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN = 8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN = 3*8; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN = 8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN = 12*8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN = 1; /* bit */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN = 1; /* bit */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN = 6+13*8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN = 8; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN = 128*8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN = 64; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN = 1; /* bit */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN = 7+258*8; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN = 8; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_TYPE_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_COLORS_LEN = 32; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN = 32; /* bits */
+
+FLAC_API const uint32_t FLAC__STREAM_METADATA_IS_LAST_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_TYPE_LEN = 7; /* bits */
+FLAC_API const uint32_t FLAC__STREAM_METADATA_LENGTH_LEN = 24; /* bits */
+
+FLAC_API const uint32_t FLAC__FRAME_HEADER_SYNC = 0x3ffe;
+FLAC_API const uint32_t FLAC__FRAME_HEADER_SYNC_LEN = 14; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_RESERVED_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_BLOCK_SIZE_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_SAMPLE_RATE_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN = 3; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_ZERO_PAD_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__FRAME_HEADER_CRC_LEN = 8; /* bits */
+
+FLAC_API const uint32_t FLAC__FRAME_FOOTER_CRC_LEN = 16; /* bits */
+
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_TYPE_LEN = 2; /* bits */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN = 5; /* bits */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN = 5; /* bits */
+
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER = 15; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN)-1 */
+FLAC_API const uint32_t FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER = 31; /* == (1<<FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN)-1 */
+
+FLAC_API const char * const FLAC__EntropyCodingMethodTypeString[] = {
+	"PARTITIONED_RICE",
+	"PARTITIONED_RICE2"
+};
+
+FLAC_API const uint32_t FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN = 4; /* bits */
+FLAC_API const uint32_t FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN = 5; /* bits */
+
+FLAC_API const uint32_t FLAC__SUBFRAME_ZERO_PAD_LEN = 1; /* bits */
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_LEN = 6; /* bits */
+FLAC_API const uint32_t FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN = 1; /* bits */
+
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK = 0x00;
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK = 0x02;
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK = 0x10;
+FLAC_API const uint32_t FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK = 0x40;
+
+FLAC_API const char * const FLAC__SubframeTypeString[] = {
+	"CONSTANT",
+	"VERBATIM",
+	"FIXED",
+	"LPC"
+};
+
+FLAC_API const char * const FLAC__ChannelAssignmentString[] = {
+	"INDEPENDENT",
+	"LEFT_SIDE",
+	"RIGHT_SIDE",
+	"MID_SIDE"
+};
+
+FLAC_API const char * const FLAC__FrameNumberTypeString[] = {
+	"FRAME_NUMBER_TYPE_FRAME_NUMBER",
+	"FRAME_NUMBER_TYPE_SAMPLE_NUMBER"
+};
+
+FLAC_API const char * const FLAC__MetadataTypeString[] = {
+	"STREAMINFO",
+	"PADDING",
+	"APPLICATION",
+	"SEEKTABLE",
+	"VORBIS_COMMENT",
+	"CUESHEET",
+	"PICTURE"
+};
+
+FLAC_API const char * const FLAC__StreamMetadata_Picture_TypeString[] = {
+	"Other",
+	"32x32 pixels 'file icon' (PNG only)",
+	"Other file icon",
+	"Cover (front)",
+	"Cover (back)",
+	"Leaflet page",
+	"Media (e.g. label side of CD)",
+	"Lead artist/lead performer/soloist",
+	"Artist/performer",
+	"Conductor",
+	"Band/Orchestra",
+	"Composer",
+	"Lyricist/text writer",
+	"Recording Location",
+	"During recording",
+	"During performance",
+	"Movie/video screen capture",
+	"A bright coloured fish",
+	"Illustration",
+	"Band/artist logotype",
+	"Publisher/Studio logotype"
+};
+
+FLAC_API FLAC__bool FLAC__format_sample_rate_is_valid(uint32_t sample_rate)
+{
+	if(sample_rate > FLAC__MAX_SAMPLE_RATE) {
+		return false;
+	}
+	else
+		return true;
+}
+
+FLAC_API FLAC__bool FLAC__format_blocksize_is_subset(uint32_t blocksize, uint32_t sample_rate)
+{
+	if(blocksize > 16384)
+		return false;
+	else if(sample_rate <= 48000 && blocksize > 4608)
+		return false;
+	else
+		return true;
+}
+
+FLAC_API FLAC__bool FLAC__format_sample_rate_is_subset(uint32_t sample_rate)
+{
+	if( // sample rate is not subset if
+		!FLAC__format_sample_rate_is_valid(sample_rate) || // sample rate is invalid or
+		sample_rate >= ((1u << 16) * 10) || // sample rate is larger then or equal to 655360 or
+		(sample_rate >= (1u << 16) && sample_rate % 10 != 0) //sample rate is >= 65536 and not divisible by 10
+	) {
+		return false;
+	}
+	else
+		return true;
+}
+
+/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
+FLAC_API FLAC__bool FLAC__format_seektable_is_legal(const FLAC__StreamMetadata_SeekTable *seek_table)
+{
+	uint32_t i;
+	FLAC__uint64 prev_sample_number = 0;
+	FLAC__bool got_prev = false;
+
+	FLAC__ASSERT(0 != seek_table);
+
+	if((FLAC__uint64)(seek_table->num_points) * FLAC__STREAM_METADATA_SEEKPOINT_LENGTH >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
+		return false;
+
+	for(i = 0; i < seek_table->num_points; i++) {
+		if(got_prev) {
+			if(
+				seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER &&
+				seek_table->points[i].sample_number <= prev_sample_number
+			)
+				return false;
+		}
+		prev_sample_number = seek_table->points[i].sample_number;
+		got_prev = true;
+	}
+
+	return true;
+}
+
+/* used as the sort predicate for qsort() */
+static int seekpoint_compare_(const FLAC__StreamMetadata_SeekPoint *l, const FLAC__StreamMetadata_SeekPoint *r)
+{
+	/* we don't just 'return l->sample_number - r->sample_number' since the result (FLAC__int64) might overflow an 'int' */
+	if(l->sample_number == r->sample_number)
+		return 0;
+	else if(l->sample_number < r->sample_number)
+		return -1;
+	else
+		return 1;
+}
+
+/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
+FLAC_API uint32_t FLAC__format_seektable_sort(FLAC__StreamMetadata_SeekTable *seek_table)
+{
+	uint32_t i, j;
+	FLAC__bool first;
+
+	FLAC__ASSERT(0 != seek_table);
+
+	if (seek_table->num_points == 0)
+		return 0;
+
+	/* sort the seekpoints */
+	qsort(seek_table->points, seek_table->num_points, sizeof(FLAC__StreamMetadata_SeekPoint), (int (*)(const void *, const void *))seekpoint_compare_);
+
+	/* uniquify the seekpoints */
+	first = true;
+	for(i = j = 0; i < seek_table->num_points; i++) {
+		if(seek_table->points[i].sample_number != FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER) {
+			if(!first) {
+				if(seek_table->points[i].sample_number == seek_table->points[j-1].sample_number)
+					continue;
+			}
+		}
+		first = false;
+		seek_table->points[j++] = seek_table->points[i];
+	}
+
+	for(i = j; i < seek_table->num_points; i++) {
+		seek_table->points[i].sample_number = FLAC__STREAM_METADATA_SEEKPOINT_PLACEHOLDER;
+		seek_table->points[i].stream_offset = 0;
+		seek_table->points[i].frame_samples = 0;
+	}
+
+	return j;
+}
+
+/*
+ * also disallows non-shortest-form encodings, c.f.
+ *   http://www.unicode.org/versions/corrigendum1.html
+ * and a more clear explanation at the end of this section:
+ *   http://www.cl.cam.ac.uk/~mgk25/unicode.html#utf-8
+ */
+static uint32_t utf8len_(const FLAC__byte *utf8)
+{
+	FLAC__ASSERT(0 != utf8);
+	if ((utf8[0] & 0x80) == 0) {
+		return 1;
+	}
+	else if ((utf8[0] & 0xE0) == 0xC0 && (utf8[1] & 0xC0) == 0x80) {
+		if ((utf8[0] & 0xFE) == 0xC0) /* overlong sequence check */
+			return 0;
+		return 2;
+	}
+	else if ((utf8[0] & 0xF0) == 0xE0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80) {
+		if (utf8[0] == 0xE0 && (utf8[1] & 0xE0) == 0x80) /* overlong sequence check */
+			return 0;
+		/* illegal surrogates check (U+D800...U+DFFF and U+FFFE...U+FFFF) */
+		if (utf8[0] == 0xED && (utf8[1] & 0xE0) == 0xA0) /* D800-DFFF */
+			return 0;
+		if (utf8[0] == 0xEF && utf8[1] == 0xBF && (utf8[2] & 0xFE) == 0xBE) /* FFFE-FFFF */
+			return 0;
+		return 3;
+	}
+	else if ((utf8[0] & 0xF8) == 0xF0 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80) {
+		if (utf8[0] == 0xF0 && (utf8[1] & 0xF0) == 0x80) /* overlong sequence check */
+			return 0;
+		return 4;
+	}
+	else if ((utf8[0] & 0xFC) == 0xF8 && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80) {
+		if (utf8[0] == 0xF8 && (utf8[1] & 0xF8) == 0x80) /* overlong sequence check */
+			return 0;
+		return 5;
+	}
+	else if ((utf8[0] & 0xFE) == 0xFC && (utf8[1] & 0xC0) == 0x80 && (utf8[2] & 0xC0) == 0x80 && (utf8[3] & 0xC0) == 0x80 && (utf8[4] & 0xC0) == 0x80 && (utf8[5] & 0xC0) == 0x80) {
+		if (utf8[0] == 0xFC && (utf8[1] & 0xFC) == 0x80) /* overlong sequence check */
+			return 0;
+		return 6;
+	}
+	else {
+		return 0;
+	}
+}
+
+FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_name_is_legal(const char *name)
+{
+	char c;
+	for(c = *name; c; c = *(++name))
+		if(c < 0x20 || c == 0x3d || c > 0x7d)
+			return false;
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_value_is_legal(const FLAC__byte *value, uint32_t length)
+{
+	if(length == (uint32_t)(-1)) {
+		while(*value) {
+			uint32_t n = utf8len_(value);
+			if(n == 0)
+				return false;
+			value += n;
+		}
+	}
+	else {
+		const FLAC__byte *end = value + length;
+		while(value < end) {
+			uint32_t n = utf8len_(value);
+			if(n == 0)
+				return false;
+			value += n;
+		}
+		if(value != end)
+			return false;
+	}
+	return true;
+}
+
+FLAC_API FLAC__bool FLAC__format_vorbiscomment_entry_is_legal(const FLAC__byte *entry, uint32_t length)
+{
+	const FLAC__byte *s, *end;
+
+	for(s = entry, end = s + length; s < end && *s != '='; s++) {
+		if(*s < 0x20 || *s > 0x7D)
+			return false;
+	}
+	if(s == end)
+		return false;
+
+	s++; /* skip '=' */
+
+	while(s < end) {
+		uint32_t n = utf8len_(s);
+		if(n == 0)
+			return false;
+		s += n;
+	}
+	if(s != end)
+		return false;
+
+	return true;
+}
+
+/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
+FLAC_API FLAC__bool FLAC__format_cuesheet_is_legal(const FLAC__StreamMetadata_CueSheet *cue_sheet, FLAC__bool check_cd_da_subset, const char **violation)
+{
+	uint32_t i, j;
+
+	if(check_cd_da_subset) {
+		if(cue_sheet->lead_in < 2 * 44100) {
+			if(violation) *violation = "CD-DA cue sheet must have a lead-in length of at least 2 seconds";
+			return false;
+		}
+		if(cue_sheet->lead_in % 588 != 0) {
+			if(violation) *violation = "CD-DA cue sheet lead-in length must be evenly divisible by 588 samples";
+			return false;
+		}
+	}
+
+	if(cue_sheet->num_tracks == 0) {
+		if(violation) *violation = "cue sheet must have at least one track (the lead-out)";
+		return false;
+	}
+
+	if(check_cd_da_subset && cue_sheet->tracks[cue_sheet->num_tracks-1].number != 170) {
+		if(violation) *violation = "CD-DA cue sheet must have a lead-out track number 170 (0xAA)";
+		return false;
+	}
+
+	for(i = 0; i < cue_sheet->num_tracks; i++) {
+		if(cue_sheet->tracks[i].number == 0) {
+			if(violation) *violation = "cue sheet may not have a track number 0";
+			return false;
+		}
+
+		if(check_cd_da_subset) {
+			if(!((cue_sheet->tracks[i].number >= 1 && cue_sheet->tracks[i].number <= 99) || cue_sheet->tracks[i].number == 170)) {
+				if(violation) *violation = "CD-DA cue sheet track number must be 1-99 or 170";
+				return false;
+			}
+		}
+
+		if(check_cd_da_subset && cue_sheet->tracks[i].offset % 588 != 0) {
+			if(violation) {
+				if(i == cue_sheet->num_tracks-1) /* the lead-out track... */
+					*violation = "CD-DA cue sheet lead-out offset must be evenly divisible by 588 samples";
+				else
+					*violation = "CD-DA cue sheet track offset must be evenly divisible by 588 samples";
+			}
+			return false;
+		}
+
+		if(i < cue_sheet->num_tracks - 1) {
+			if(cue_sheet->tracks[i].num_indices == 0) {
+				if(violation) *violation = "cue sheet track must have at least one index point";
+				return false;
+			}
+
+			if(cue_sheet->tracks[i].indices[0].number > 1) {
+				if(violation) *violation = "cue sheet track's first index number must be 0 or 1";
+				return false;
+			}
+		}
+
+		for(j = 0; j < cue_sheet->tracks[i].num_indices; j++) {
+			if(check_cd_da_subset && cue_sheet->tracks[i].indices[j].offset % 588 != 0) {
+				if(violation) *violation = "CD-DA cue sheet track index offset must be evenly divisible by 588 samples";
+				return false;
+			}
+
+			if(j > 0) {
+				if(cue_sheet->tracks[i].indices[j].number != cue_sheet->tracks[i].indices[j-1].number + 1) {
+					if(violation) *violation = "cue sheet track index numbers must increase by 1";
+					return false;
+				}
+			}
+		}
+	}
+
+	return true;
+}
+
+/* @@@@ add to unit tests; it is already indirectly tested by the metadata_object tests */
+FLAC_API FLAC__bool FLAC__format_picture_is_legal(const FLAC__StreamMetadata_Picture *picture, const char **violation)
+{
+	char *p;
+	FLAC__byte *b;
+
+	for(p = picture->mime_type; *p; p++) {
+		if(*p < 0x20 || *p > 0x7e) {
+			if(violation) *violation = "MIME type string must contain only printable ASCII characters (0x20-0x7e)";
+			return false;
+		}
+	}
+
+	for(b = picture->description; *b; ) {
+		uint32_t n = utf8len_(b);
+		if(n == 0) {
+			if(violation) *violation = "description string must be valid UTF-8";
+			return false;
+		}
+		b += n;
+	}
+
+	return true;
+}
+
+/*
+ * These routines are private to libFLAC
+ */
+#if 0 /* UNUSED */
+uint32_t FLAC__format_get_max_rice_partition_order(uint32_t blocksize, uint32_t predictor_order)
+{
+	return
+		FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(
+			FLAC__format_get_max_rice_partition_order_from_blocksize(blocksize),
+			blocksize,
+			predictor_order
+		);
+}
+#endif
+
+uint32_t FLAC__format_get_max_rice_partition_order_from_blocksize(uint32_t blocksize)
+{
+	uint32_t max_rice_partition_order = 0;
+	while(!(blocksize & 1)) {
+		max_rice_partition_order++;
+		blocksize >>= 1;
+	}
+	return flac_min(FLAC__MAX_RICE_PARTITION_ORDER, max_rice_partition_order);
+}
+
+uint32_t FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(uint32_t limit, uint32_t blocksize, uint32_t predictor_order)
+{
+	uint32_t max_rice_partition_order = limit;
+
+	while(max_rice_partition_order > 0 && (blocksize >> max_rice_partition_order) <= predictor_order)
+		max_rice_partition_order--;
+
+	FLAC__ASSERT(
+		(max_rice_partition_order == 0 && blocksize >= predictor_order) ||
+		(max_rice_partition_order > 0 && blocksize >> max_rice_partition_order > predictor_order)
+	);
+
+	return max_rice_partition_order;
+}
+
+void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
+{
+	FLAC__ASSERT(0 != object);
+
+	object->parameters = 0;
+	object->raw_bits = 0;
+	object->capacity_by_order = 0;
+}
+
+void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object)
+{
+	FLAC__ASSERT(0 != object);
+
+	if(0 != object->parameters)
+		free(object->parameters);
+	if(0 != object->raw_bits)
+		free(object->raw_bits);
+	FLAC__format_entropy_coding_method_partitioned_rice_contents_init(object);
+}
+
+#if defined(_MSC_VER)
+// silence three MSVC warnings 'result of 32-bit shift implicitly converted to 64 bits (was 64-bit shift intended?)'
+#pragma warning ( disable : 4334 )
+#endif
+
+FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, uint32_t max_partition_order)
+{
+	FLAC__ASSERT(0 != object);
+
+	if(object->capacity_by_order < max_partition_order || object->parameters == NULL || object->raw_bits == NULL) {
+		if(0 == (object->parameters = safe_realloc_(object->parameters, sizeof(uint32_t)*(1 << max_partition_order))))
+			return false;
+		if(0 == (object->raw_bits = safe_realloc_(object->raw_bits, sizeof(uint32_t)*(1 << max_partition_order))))
+			return false;
+		memset(object->raw_bits, 0, sizeof(uint32_t)*(1 << max_partition_order));
+		object->capacity_by_order = max_partition_order;
+	}
+
+	return true;
+}
+
+#if defined(_MSC_VER)
+#pragma warning ( default : 4334 )
+#endif

extern/flac/src/libFLAC/include/Makefile.am

@@ -0,0 +1,32 @@
+#  libFLAC - Free Lossless Audio Codec library
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  - Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#
+#  - Redistributions in binary form must reproduce the above copyright
+#  notice, this list of conditions and the following disclaimer in the
+#  documentation and/or other materials provided with the distribution.
+#
+#  - Neither the name of the Xiph.org Foundation nor the names of its
+#  contributors may be used to endorse or promote products derived from
+#  this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+SUBDIRS = private protected

extern/flac/src/libFLAC/include/Makefile.in

@@ -0,0 +1,696 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  libFLAC - Free Lossless Audio Codec library
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  - Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#
+#  - Redistributions in binary form must reproduce the above copyright
+#  notice, this list of conditions and the following disclaimer in the
+#  documentation and/or other materials provided with the distribution.
+#
+#  - Neither the name of the Xiph.org Foundation nor the names of its
+#  contributors may be used to endorse or promote products derived from
+#  this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = src/libFLAC/include
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/add_cflags.m4 \
+	$(top_srcdir)/m4/add_cxxflags.m4 \
+	$(top_srcdir)/m4/ax_add_fortify_source.m4 \
+	$(top_srcdir)/m4/ax_check_compile_flag.m4 \
+	$(top_srcdir)/m4/ax_check_enable_debug.m4 \
+	$(top_srcdir)/m4/ax_pthread.m4 $(top_srcdir)/m4/bswap.m4 \
+	$(top_srcdir)/m4/clang.m4 $(top_srcdir)/m4/codeset.m4 \
+	$(top_srcdir)/m4/gcc_version.m4 $(top_srcdir)/m4/iconv.m4 \
+	$(top_srcdir)/m4/lib-ld.m4 $(top_srcdir)/m4/lib-link.m4 \
+	$(top_srcdir)/m4/lib-prefix.m4 $(top_srcdir)/m4/libtool.m4 \
+	$(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \
+	$(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \
+	$(top_srcdir)/m4/ogg.m4 $(top_srcdir)/m4/really_gcc.m4 \
+	$(top_srcdir)/m4/stack_protect.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+SOURCES =
+DIST_SOURCES =
+RECURSIVE_TARGETS = all-recursive check-recursive cscopelist-recursive \
+	ctags-recursive dvi-recursive html-recursive info-recursive \
+	install-data-recursive install-dvi-recursive \
+	install-exec-recursive install-html-recursive \
+	install-info-recursive install-pdf-recursive \
+	install-ps-recursive install-recursive installcheck-recursive \
+	installdirs-recursive pdf-recursive ps-recursive \
+	tags-recursive uninstall-recursive
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+RECURSIVE_CLEAN_TARGETS = mostlyclean-recursive clean-recursive	\
+  distclean-recursive maintainer-clean-recursive
+am__recursive_targets = \
+  $(RECURSIVE_TARGETS) \
+  $(RECURSIVE_CLEAN_TARGETS) \
+  $(am__extra_recursive_targets)
+AM_RECURSIVE_TARGETS = $(am__recursive_targets:-recursive=) TAGS CTAGS \
+	distdir distdir-am
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+DIST_SUBDIRS = $(SUBDIRS)
+am__DIST_COMMON = $(srcdir)/Makefile.in
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+am__relativize = \
+  dir0=`pwd`; \
+  sed_first='s,^\([^/]*\)/.*$$,\1,'; \
+  sed_rest='s,^[^/]*/*,,'; \
+  sed_last='s,^.*/\([^/]*\)$$,\1,'; \
+  sed_butlast='s,/*[^/]*$$,,'; \
+  while test -n "$$dir1"; do \
+    first=`echo "$$dir1" | sed -e "$$sed_first"`; \
+    if test "$$first" != "."; then \
+      if test "$$first" = ".."; then \
+        dir2=`echo "$$dir0" | sed -e "$$sed_last"`/"$$dir2"; \
+        dir0=`echo "$$dir0" | sed -e "$$sed_butlast"`; \
+      else \
+        first2=`echo "$$dir2" | sed -e "$$sed_first"`; \
+        if test "$$first2" = "$$first"; then \
+          dir2=`echo "$$dir2" | sed -e "$$sed_rest"`; \
+        else \
+          dir2="../$$dir2"; \
+        fi; \
+        dir0="$$dir0"/"$$first"; \
+      fi; \
+    fi; \
+    dir1=`echo "$$dir1" | sed -e "$$sed_rest"`; \
+  done; \
+  reldir="$$dir2"
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+AR = @AR@
+AS = @AS@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CSCOPE = @CSCOPE@
+CTAGS = @CTAGS@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+ENABLE_64_BIT_WORDS = @ENABLE_64_BIT_WORDS@
+ETAGS = @ETAGS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+FILECMD = @FILECMD@
+FLAC_STATIC_LIBS = @FLAC_STATIC_LIBS@
+FLAC__HAS_OGG = @FLAC__HAS_OGG@
+FLAC__TEST_LEVEL = @FLAC__TEST_LEVEL@
+FLAC__TEST_WITH_VALGRIND = @FLAC__TEST_WITH_VALGRIND@
+GCC_MAJOR_VERSION = @GCC_MAJOR_VERSION@
+GCC_MINOR_VERSION = @GCC_MINOR_VERSION@
+GCC_VERSION = @GCC_VERSION@
+GIT_COMMIT_VERSION_HASH = @GIT_COMMIT_VERSION_HASH@
+GIT_FOUND = @GIT_FOUND@
+GREP = @GREP@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBICONV = @LIBICONV@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@
+LIB_FUZZING_ENGINE = @LIB_FUZZING_ENGINE@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBICONV = @LTLIBICONV@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OBJ_FORMAT = @OBJ_FORMAT@
+OGG_CFLAGS = @OGG_CFLAGS@
+OGG_LIBS = @OGG_LIBS@
+OGG_PACKAGE = @OGG_PACKAGE@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PANDOC = @PANDOC@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_CXX = @PTHREAD_CXX@
+PTHREAD_LIBS = @PTHREAD_LIBS@
+RANLIB = @RANLIB@
+RC = @RC@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+ax_pthread_config = @ax_pthread_config@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+runstatedir = @runstatedir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+SUBDIRS = private protected
+all: all-recursive
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/libFLAC/include/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign src/libFLAC/include/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+# This directory's subdirectories are mostly independent; you can cd
+# into them and run 'make' without going through this Makefile.
+# To change the values of 'make' variables: instead of editing Makefiles,
+# (1) if the variable is set in 'config.status', edit 'config.status'
+#     (which will cause the Makefiles to be regenerated when you run 'make');
+# (2) otherwise, pass the desired values on the 'make' command line.
+$(am__recursive_targets):
+	@fail=; \
+	if $(am__make_keepgoing); then \
+	  failcom='fail=yes'; \
+	else \
+	  failcom='exit 1'; \
+	fi; \
+	dot_seen=no; \
+	target=`echo $@ | sed s/-recursive//`; \
+	case "$@" in \
+	  distclean-* | maintainer-clean-*) list='$(DIST_SUBDIRS)' ;; \
+	  *) list='$(SUBDIRS)' ;; \
+	esac; \
+	for subdir in $$list; do \
+	  echo "Making $$target in $$subdir"; \
+	  if test "$$subdir" = "."; then \
+	    dot_seen=yes; \
+	    local_target="$$target-am"; \
+	  else \
+	    local_target="$$target"; \
+	  fi; \
+	  ($(am__cd) $$subdir && $(MAKE) $(AM_MAKEFLAGS) $$local_target) \
+	  || eval $$failcom; \
+	done; \
+	if test "$$dot_seen" = "no"; then \
+	  $(MAKE) $(AM_MAKEFLAGS) "$$target-am" || exit 1; \
+	fi; test -z "$$fail"
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-recursive
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	if ($(ETAGS) --etags-include --version) >/dev/null 2>&1; then \
+	  include_option=--etags-include; \
+	  empty_fix=.; \
+	else \
+	  include_option=--include; \
+	  empty_fix=; \
+	fi; \
+	list='$(SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    test ! -f $$subdir/TAGS || \
+	      set "$$@" "$$include_option=$$here/$$subdir/TAGS"; \
+	  fi; \
+	done; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-recursive
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-recursive
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+	@list='$(DIST_SUBDIRS)'; for subdir in $$list; do \
+	  if test "$$subdir" = .; then :; else \
+	    $(am__make_dryrun) \
+	      || test -d "$(distdir)/$$subdir" \
+	      || $(MKDIR_P) "$(distdir)/$$subdir" \
+	      || exit 1; \
+	    dir1=$$subdir; dir2="$(distdir)/$$subdir"; \
+	    $(am__relativize); \
+	    new_distdir=$$reldir; \
+	    dir1=$$subdir; dir2="$(top_distdir)"; \
+	    $(am__relativize); \
+	    new_top_distdir=$$reldir; \
+	    echo " (cd $$subdir && $(MAKE) $(AM_MAKEFLAGS) top_distdir="$$new_top_distdir" distdir="$$new_distdir" \\"; \
+	    echo "     am__remove_distdir=: am__skip_length_check=: am__skip_mode_fix=: distdir)"; \
+	    ($(am__cd) $$subdir && \
+	      $(MAKE) $(AM_MAKEFLAGS) \
+	        top_distdir="$$new_top_distdir" \
+	        distdir="$$new_distdir" \
+		am__remove_distdir=: \
+		am__skip_length_check=: \
+		am__skip_mode_fix=: \
+	        distdir) \
+	      || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-recursive
+all-am: Makefile
+installdirs: installdirs-recursive
+installdirs-am:
+install: install-recursive
+install-exec: install-exec-recursive
+install-data: install-data-recursive
+uninstall: uninstall-recursive
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-recursive
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-recursive
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-recursive
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-recursive
+
+dvi-am:
+
+html: html-recursive
+
+html-am:
+
+info: info-recursive
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-recursive
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-recursive
+
+install-html-am:
+
+install-info: install-info-recursive
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-recursive
+
+install-pdf-am:
+
+install-ps: install-ps-recursive
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-recursive
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-recursive
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-recursive
+
+pdf-am:
+
+ps: ps-recursive
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: $(am__recursive_targets) install-am install-strip
+
+.PHONY: $(am__recursive_targets) CTAGS GTAGS TAGS all all-am check \
+	check-am clean clean-generic clean-libtool cscopelist-am ctags \
+	ctags-am distclean distclean-generic distclean-libtool \
+	distclean-tags distdir dvi dvi-am html html-am info info-am \
+	install install-am install-data install-data-am install-dvi \
+	install-dvi-am install-exec install-exec-am install-html \
+	install-html-am install-info install-info-am install-man \
+	install-pdf install-pdf-am install-ps install-ps-am \
+	install-strip installcheck installcheck-am installdirs \
+	installdirs-am maintainer-clean maintainer-clean-generic \
+	mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
+	ps ps-am tags tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

extern/flac/src/libFLAC/include/private/Makefile.am

@@ -0,0 +1,53 @@
+#  libFLAC - Free Lossless Audio Codec library
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  - Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#
+#  - Redistributions in binary form must reproduce the above copyright
+#  notice, this list of conditions and the following disclaimer in the
+#  documentation and/or other materials provided with the distribution.
+#
+#  - Neither the name of the Xiph.org Foundation nor the names of its
+#  contributors may be used to endorse or promote products derived from
+#  this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+noinst_HEADERS = \
+	all.h \
+	bitmath.h \
+	bitreader.h \
+	bitwriter.h \
+	cpu.h \
+	crc.h \
+	fixed.h \
+	float.h \
+	format.h \
+	lpc.h \
+	macros.h \
+	md5.h \
+	memory.h \
+	metadata.h \
+	ogg_decoder_aspect.h \
+	ogg_encoder_aspect.h \
+	ogg_helper.h \
+	ogg_mapping.h \
+	stream_encoder.h \
+	stream_encoder_framing.h \
+	window.h

extern/flac/src/libFLAC/include/private/Makefile.in

@@ -0,0 +1,606 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  libFLAC - Free Lossless Audio Codec library
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  - Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#
+#  - Redistributions in binary form must reproduce the above copyright
+#  notice, this list of conditions and the following disclaimer in the
+#  documentation and/or other materials provided with the distribution.
+#
+#  - Neither the name of the Xiph.org Foundation nor the names of its
+#  contributors may be used to endorse or promote products derived from
+#  this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = src/libFLAC/include/private
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/add_cflags.m4 \
+	$(top_srcdir)/m4/add_cxxflags.m4 \
+	$(top_srcdir)/m4/ax_add_fortify_source.m4 \
+	$(top_srcdir)/m4/ax_check_compile_flag.m4 \
+	$(top_srcdir)/m4/ax_check_enable_debug.m4 \
+	$(top_srcdir)/m4/ax_pthread.m4 $(top_srcdir)/m4/bswap.m4 \
+	$(top_srcdir)/m4/clang.m4 $(top_srcdir)/m4/codeset.m4 \
+	$(top_srcdir)/m4/gcc_version.m4 $(top_srcdir)/m4/iconv.m4 \
+	$(top_srcdir)/m4/lib-ld.m4 $(top_srcdir)/m4/lib-link.m4 \
+	$(top_srcdir)/m4/lib-prefix.m4 $(top_srcdir)/m4/libtool.m4 \
+	$(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \
+	$(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \
+	$(top_srcdir)/m4/ogg.m4 $(top_srcdir)/m4/really_gcc.m4 \
+	$(top_srcdir)/m4/stack_protect.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(noinst_HEADERS) \
+	$(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+SOURCES =
+DIST_SOURCES =
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+HEADERS = $(noinst_HEADERS)
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+am__DIST_COMMON = $(srcdir)/Makefile.in
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+AR = @AR@
+AS = @AS@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CSCOPE = @CSCOPE@
+CTAGS = @CTAGS@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+ENABLE_64_BIT_WORDS = @ENABLE_64_BIT_WORDS@
+ETAGS = @ETAGS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+FILECMD = @FILECMD@
+FLAC_STATIC_LIBS = @FLAC_STATIC_LIBS@
+FLAC__HAS_OGG = @FLAC__HAS_OGG@
+FLAC__TEST_LEVEL = @FLAC__TEST_LEVEL@
+FLAC__TEST_WITH_VALGRIND = @FLAC__TEST_WITH_VALGRIND@
+GCC_MAJOR_VERSION = @GCC_MAJOR_VERSION@
+GCC_MINOR_VERSION = @GCC_MINOR_VERSION@
+GCC_VERSION = @GCC_VERSION@
+GIT_COMMIT_VERSION_HASH = @GIT_COMMIT_VERSION_HASH@
+GIT_FOUND = @GIT_FOUND@
+GREP = @GREP@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBICONV = @LIBICONV@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@
+LIB_FUZZING_ENGINE = @LIB_FUZZING_ENGINE@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBICONV = @LTLIBICONV@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OBJ_FORMAT = @OBJ_FORMAT@
+OGG_CFLAGS = @OGG_CFLAGS@
+OGG_LIBS = @OGG_LIBS@
+OGG_PACKAGE = @OGG_PACKAGE@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PANDOC = @PANDOC@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_CXX = @PTHREAD_CXX@
+PTHREAD_LIBS = @PTHREAD_LIBS@
+RANLIB = @RANLIB@
+RC = @RC@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+ax_pthread_config = @ax_pthread_config@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+runstatedir = @runstatedir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+noinst_HEADERS = \
+	all.h \
+	bitmath.h \
+	bitreader.h \
+	bitwriter.h \
+	cpu.h \
+	crc.h \
+	fixed.h \
+	float.h \
+	format.h \
+	lpc.h \
+	macros.h \
+	md5.h \
+	memory.h \
+	metadata.h \
+	ogg_decoder_aspect.h \
+	ogg_encoder_aspect.h \
+	ogg_helper.h \
+	ogg_mapping.h \
+	stream_encoder.h \
+	stream_encoder_framing.h \
+	window.h
+
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/libFLAC/include/private/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign src/libFLAC/include/private/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(HEADERS)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool cscopelist-am ctags ctags-am distclean \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

extern/flac/src/libFLAC/include/private/all.h

@@ -0,0 +1,50 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__ALL_H
+#define FLAC__PRIVATE__ALL_H
+
+#include "bitmath.h"
+#include "bitreader.h"
+#include "bitwriter.h"
+#include "cpu.h"
+#include "crc.h"
+#include "fixed.h"
+#include "float.h"
+#include "format.h"
+#include "lpc.h"
+#include "md5.h"
+#include "memory.h"
+#include "metadata.h"
+#include "stream_encoder_framing.h"
+
+#endif

extern/flac/src/libFLAC/include/private/bitmath.h

@@ -0,0 +1,211 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__BITMATH_H
+#define FLAC__PRIVATE__BITMATH_H
+
+#include "FLAC/ordinals.h"
+#include "FLAC/assert.h"
+
+#include "share/compat.h"
+
+#if defined(_MSC_VER)
+#include <intrin.h> /* for _BitScanReverse* */
+#endif
+
+/* Will never be emitted for MSVC, GCC, Intel compilers */
+static inline uint32_t FLAC__clz_soft_uint32(FLAC__uint32 word)
+{
+	static const uint8_t byte_to_unary_table[] = {
+	8, 7, 6, 6, 5, 5, 5, 5, 4, 4, 4, 4, 4, 4, 4, 4,
+	3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3, 3,
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+	2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2, 2,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0,
+	};
+
+	return word > 0xffffff ? byte_to_unary_table[word >> 24] :
+		word > 0xffff ? byte_to_unary_table[word >> 16] + 8 :
+		word > 0xff ? byte_to_unary_table[word >> 8] + 16 :
+		byte_to_unary_table[word] + 24;
+}
+
+static inline uint32_t FLAC__clz_uint32(FLAC__uint32 v)
+{
+/* Never used with input 0 */
+	FLAC__ASSERT(v > 0);
+#if defined(__INTEL_COMPILER)
+	return _bit_scan_reverse(v) ^ 31U;
+#elif defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+/* This will translate either to (bsr ^ 31U), clz , ctlz, cntlz, lzcnt depending on
+ * -march= setting or to a software routine in exotic machines. */
+	return __builtin_clz(v);
+#elif defined(_MSC_VER)
+	{
+		unsigned long idx;
+		_BitScanReverse(&idx, v);
+		return idx ^ 31U;
+	}
+#else
+	return FLAC__clz_soft_uint32(v);
+#endif
+}
+
+/* Used when 64-bit bsr/clz is unavailable; can use 32-bit bsr/clz when possible */
+static inline uint32_t FLAC__clz_soft_uint64(FLAC__uint64 word)
+{
+	return (FLAC__uint32)(word>>32) ? FLAC__clz_uint32((FLAC__uint32)(word>>32)) :
+		FLAC__clz_uint32((FLAC__uint32)word) + 32;
+}
+
+static inline uint32_t FLAC__clz_uint64(FLAC__uint64 v)
+{
+	/* Never used with input 0 */
+	FLAC__ASSERT(v > 0);
+#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+	return __builtin_clzll(v);
+#elif (defined(__INTEL_COMPILER) || defined(_MSC_VER)) && (defined(_M_IA64) || defined(_M_X64))
+	{
+		unsigned long idx;
+		_BitScanReverse64(&idx, v);
+		return idx ^ 63U;
+	}
+#else
+	return FLAC__clz_soft_uint64(v);
+#endif
+}
+
+/* These two functions work with input 0 */
+static inline uint32_t FLAC__clz2_uint32(FLAC__uint32 v)
+{
+	if (!v)
+		return 32;
+	return FLAC__clz_uint32(v);
+}
+
+static inline uint32_t FLAC__clz2_uint64(FLAC__uint64 v)
+{
+	if (!v)
+		return 64;
+	return FLAC__clz_uint64(v);
+}
+
+/* An example of what FLAC__bitmath_ilog2() computes:
+ *
+ * ilog2( 0) = assertion failure
+ * ilog2( 1) = 0
+ * ilog2( 2) = 1
+ * ilog2( 3) = 1
+ * ilog2( 4) = 2
+ * ilog2( 5) = 2
+ * ilog2( 6) = 2
+ * ilog2( 7) = 2
+ * ilog2( 8) = 3
+ * ilog2( 9) = 3
+ * ilog2(10) = 3
+ * ilog2(11) = 3
+ * ilog2(12) = 3
+ * ilog2(13) = 3
+ * ilog2(14) = 3
+ * ilog2(15) = 3
+ * ilog2(16) = 4
+ * ilog2(17) = 4
+ * ilog2(18) = 4
+ */
+
+static inline uint32_t FLAC__bitmath_ilog2(FLAC__uint32 v)
+{
+	FLAC__ASSERT(v > 0);
+#if defined(__INTEL_COMPILER)
+	return _bit_scan_reverse(v);
+#elif defined(_MSC_VER)
+	{
+		unsigned long idx;
+		_BitScanReverse(&idx, v);
+		return idx;
+	}
+#else
+	return FLAC__clz_uint32(v) ^ 31U;
+#endif
+}
+
+static inline uint32_t FLAC__bitmath_ilog2_wide(FLAC__uint64 v)
+{
+	FLAC__ASSERT(v > 0);
+#if defined(__GNUC__) && (__GNUC__ >= 4 || (__GNUC__ == 3 && __GNUC_MINOR__ >= 4))
+	return __builtin_clzll(v) ^ 63U;
+/* Sorry, only supported in x64/Itanium.. and both have fast FPU which makes integer-only encoder pointless */
+#elif (defined(__INTEL_COMPILER) || defined(_MSC_VER)) && (defined(_M_IA64) || defined(_M_X64))
+	{
+		unsigned long idx;
+		_BitScanReverse64(&idx, v);
+		return idx;
+	}
+#else
+/*  Brain-damaged compilers will use the fastest possible way that is,
+	de Bruijn sequences (http://supertech.csail.mit.edu/papers/debruijn.pdf)
+	(C) Timothy B. Terriberry (tterribe@xiph.org) 2001-2009 CC0 (Public domain).
+*/
+	{
+		static const uint8_t DEBRUIJN_IDX64[64]={
+			0, 1, 2, 7, 3,13, 8,19, 4,25,14,28, 9,34,20,40,
+			5,17,26,38,15,46,29,48,10,31,35,54,21,50,41,57,
+			63, 6,12,18,24,27,33,39,16,37,45,47,30,53,49,56,
+			62,11,23,32,36,44,52,55,61,22,43,51,60,42,59,58
+		};
+		v|= v>>1;
+		v|= v>>2;
+		v|= v>>4;
+		v|= v>>8;
+		v|= v>>16;
+		v|= v>>32;
+		v= (v>>1)+1;
+		return DEBRUIJN_IDX64[v*FLAC__U64L(0x218A392CD3D5DBF)>>58&0x3F];
+	}
+#endif
+}
+
+uint32_t FLAC__bitmath_silog2(FLAC__int64 v);
+uint32_t FLAC__bitmath_extra_mulbits_unsigned(FLAC__uint32 v);
+
+#endif

extern/flac/src/libFLAC/include/private/bitreader.h

@@ -0,0 +1,101 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__BITREADER_H
+#define FLAC__PRIVATE__BITREADER_H
+
+#include <stdio.h> /* for FILE */
+#include "FLAC/ordinals.h"
+#include "cpu.h"
+
+/*
+ * opaque structure definition
+ */
+struct FLAC__BitReader;
+typedef struct FLAC__BitReader FLAC__BitReader;
+
+typedef FLAC__bool (*FLAC__BitReaderReadCallback)(FLAC__byte buffer[], size_t *bytes, void *client_data);
+
+/*
+ * construction, deletion, initialization, etc functions
+ */
+FLAC__BitReader *FLAC__bitreader_new(void);
+void FLAC__bitreader_delete(FLAC__BitReader *br);
+FLAC__bool FLAC__bitreader_init(FLAC__BitReader *br, FLAC__BitReaderReadCallback rcb, void *cd);
+void FLAC__bitreader_free(FLAC__BitReader *br); /* does not 'free(br)' */
+FLAC__bool FLAC__bitreader_clear(FLAC__BitReader *br);
+void FLAC__bitreader_set_framesync_location(FLAC__BitReader *br);
+FLAC__bool FLAC__bitreader_rewind_to_after_last_seen_framesync(FLAC__BitReader *br);
+
+/*
+ * CRC functions
+ */
+void FLAC__bitreader_reset_read_crc16(FLAC__BitReader *br, FLAC__uint16 seed);
+FLAC__uint16 FLAC__bitreader_get_read_crc16(FLAC__BitReader *br);
+
+/*
+ * info functions
+ */
+FLAC__bool FLAC__bitreader_is_consumed_byte_aligned(const FLAC__BitReader *br);
+uint32_t FLAC__bitreader_bits_left_for_byte_alignment(const FLAC__BitReader *br);
+uint32_t FLAC__bitreader_get_input_bits_unconsumed(const FLAC__BitReader *br);
+void FLAC__bitreader_set_limit(FLAC__BitReader *br, uint32_t limit);
+void FLAC__bitreader_remove_limit(FLAC__BitReader *br);
+uint32_t FLAC__bitreader_limit_remaining(FLAC__BitReader *br);
+void FLAC__bitreader_limit_invalidate(FLAC__BitReader *br);
+
+/*
+ * read functions
+ */
+
+FLAC__bool FLAC__bitreader_read_raw_uint32(FLAC__BitReader *br, FLAC__uint32 *val, uint32_t bits);
+FLAC__bool FLAC__bitreader_read_raw_int32(FLAC__BitReader *br, FLAC__int32 *val, uint32_t bits);
+FLAC__bool FLAC__bitreader_read_raw_uint64(FLAC__BitReader *br, FLAC__uint64 *val, uint32_t bits);
+FLAC__bool FLAC__bitreader_read_raw_int64(FLAC__BitReader *br, FLAC__int64 *val, uint32_t bits);
+FLAC__bool FLAC__bitreader_read_uint32_little_endian(FLAC__BitReader *br, FLAC__uint32 *val); /*only for bits=32*/
+FLAC__bool FLAC__bitreader_skip_bits_no_crc(FLAC__BitReader *br, uint32_t bits); /* WATCHOUT: does not CRC the skipped data! */ /*@@@@ add to unit tests */
+FLAC__bool FLAC__bitreader_skip_byte_block_aligned_no_crc(FLAC__BitReader *br, uint32_t nvals); /* WATCHOUT: does not CRC the read data! */
+FLAC__bool FLAC__bitreader_read_byte_block_aligned_no_crc(FLAC__BitReader *br, FLAC__byte *val, uint32_t nvals); /* WATCHOUT: does not CRC the read data! */
+FLAC__bool FLAC__bitreader_read_unary_unsigned(FLAC__BitReader *br, uint32_t *val);
+FLAC__bool FLAC__bitreader_read_rice_signed(FLAC__BitReader *br, int *val, uint32_t parameter);
+FLAC__bool FLAC__bitreader_read_rice_signed_block(FLAC__BitReader *br, int vals[], uint32_t nvals, uint32_t parameter);
+#ifdef FLAC__BMI2_SUPPORTED
+FLAC__bool FLAC__bitreader_read_rice_signed_block_bmi2(FLAC__BitReader *br, int vals[], uint32_t nvals, uint32_t parameter);
+#endif
+
+#if 0 /* UNUSED */
+FLAC__bool FLAC__bitreader_read_golomb_signed(FLAC__BitReader *br, int *val, uint32_t parameter);
+FLAC__bool FLAC__bitreader_read_golomb_unsigned(FLAC__BitReader *br, uint32_t *val, uint32_t parameter);
+#endif
+FLAC__bool FLAC__bitreader_read_utf8_uint32(FLAC__BitReader *br, FLAC__uint32 *val, FLAC__byte *raw, uint32_t *rawlen);
+FLAC__bool FLAC__bitreader_read_utf8_uint64(FLAC__BitReader *br, FLAC__uint64 *val, FLAC__byte *raw, uint32_t *rawlen);
+#endif

extern/flac/src/libFLAC/include/private/bitwriter.h

@@ -0,0 +1,104 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__BITWRITER_H
+#define FLAC__PRIVATE__BITWRITER_H
+
+#include <stdio.h> /* for FILE */
+#include "FLAC/ordinals.h"
+
+/*
+ * opaque structure definition
+ */
+struct FLAC__BitWriter;
+typedef struct FLAC__BitWriter FLAC__BitWriter;
+
+/*
+ * construction, deletion, initialization, etc functions
+ */
+FLAC__BitWriter *FLAC__bitwriter_new(void);
+void FLAC__bitwriter_delete(FLAC__BitWriter *bw);
+FLAC__bool FLAC__bitwriter_init(FLAC__BitWriter *bw);
+void FLAC__bitwriter_free(FLAC__BitWriter *bw); /* does not 'free(buffer)' */
+void FLAC__bitwriter_clear(FLAC__BitWriter *bw);
+
+/*
+ * CRC functions
+ *
+ * non-const *bw because they have to cal FLAC__bitwriter_get_buffer()
+ */
+FLAC__bool FLAC__bitwriter_get_write_crc16(FLAC__BitWriter *bw, FLAC__uint16 *crc);
+FLAC__bool FLAC__bitwriter_get_write_crc8(FLAC__BitWriter *bw, FLAC__byte *crc);
+
+/*
+ * info functions
+ */
+FLAC__bool FLAC__bitwriter_is_byte_aligned(const FLAC__BitWriter *bw);
+uint32_t FLAC__bitwriter_get_input_bits_unconsumed(const FLAC__BitWriter *bw); /* can be called anytime, returns total # of bits unconsumed */
+
+/*
+ * direct buffer access
+ *
+ * there may be no calls on the bitwriter between get and release.
+ * the bitwriter continues to own the returned buffer.
+ * before get, bitwriter MUST be byte aligned: check with FLAC__bitwriter_is_byte_aligned()
+ */
+FLAC__bool FLAC__bitwriter_get_buffer(FLAC__BitWriter *bw, const FLAC__byte **buffer, size_t *bytes);
+void FLAC__bitwriter_release_buffer(FLAC__BitWriter *bw);
+
+/*
+ * write functions
+ */
+FLAC__bool FLAC__bitwriter_write_zeroes(FLAC__BitWriter *bw, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_uint32(FLAC__BitWriter *bw, FLAC__uint32 val, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_int32(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_uint64(FLAC__BitWriter *bw, FLAC__uint64 val, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_int64(FLAC__BitWriter *bw, FLAC__int64 val, uint32_t bits);
+FLAC__bool FLAC__bitwriter_write_raw_uint32_little_endian(FLAC__BitWriter *bw, FLAC__uint32 val); /*only for bits=32*/
+FLAC__bool FLAC__bitwriter_write_byte_block(FLAC__BitWriter *bw, const FLAC__byte vals[], uint32_t nvals);
+FLAC__bool FLAC__bitwriter_write_unary_unsigned(FLAC__BitWriter *bw, uint32_t val);
+#if 0 /* UNUSED */
+uint32_t FLAC__bitwriter_rice_bits(FLAC__int32 val, uint32_t parameter);
+uint32_t FLAC__bitwriter_golomb_bits_signed(int val, uint32_t parameter);
+uint32_t FLAC__bitwriter_golomb_bits_unsigned(uint32_t val, uint32_t parameter);
+FLAC__bool FLAC__bitwriter_write_rice_signed(FLAC__BitWriter *bw, FLAC__int32 val, uint32_t parameter);
+#endif
+FLAC__bool FLAC__bitwriter_write_rice_signed_block(FLAC__BitWriter *bw, const FLAC__int32 *vals, uint32_t nvals, uint32_t parameter);
+#if 0 /* UNUSED */
+FLAC__bool FLAC__bitwriter_write_golomb_signed(FLAC__BitWriter *bw, int val, uint32_t parameter);
+FLAC__bool FLAC__bitwriter_write_golomb_unsigned(FLAC__BitWriter *bw, uint32_t val, uint32_t parameter);
+#endif
+FLAC__bool FLAC__bitwriter_write_utf8_uint32(FLAC__BitWriter *bw, FLAC__uint32 val);
+FLAC__bool FLAC__bitwriter_write_utf8_uint64(FLAC__BitWriter *bw, FLAC__uint64 val);
+FLAC__bool FLAC__bitwriter_zero_pad_to_byte_boundary(FLAC__BitWriter *bw);
+
+#endif

extern/flac/src/libFLAC/include/private/cpu.h

@@ -0,0 +1,198 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__CPU_H
+#define FLAC__PRIVATE__CPU_H
+
+#include "FLAC/ordinals.h"
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#ifndef FLAC__CPU_X86_64
+
+#if defined(__amd64__) || defined(__amd64) || defined(__x86_64__) || defined(__x86_64) || defined(_M_X64) || defined(_M_AMD64)
+#define FLAC__CPU_X86_64
+#endif
+
+#endif
+
+#ifndef FLAC__CPU_IA32
+
+#if defined(__i386__) || defined(__i486__) || defined(__i586__) || defined(__i686__) ||defined( __i386) || defined(_M_IX86)
+#define FLAC__CPU_IA32
+#endif
+
+#endif
+
+#ifndef __has_attribute
+#define __has_attribute(x) 0
+#endif
+
+#if FLAC__HAS_X86INTRIN
+/* SSE intrinsics support by ICC/MSVC/GCC */
+#if defined __INTEL_COMPILER
+  #define FLAC__SSE_TARGET(x)
+  #define FLAC__SSE_SUPPORTED 1
+  #define FLAC__SSE2_SUPPORTED 1
+  #if (__INTEL_COMPILER >= 1000) /* Intel C++ Compiler 10.0 */
+    #define FLAC__SSSE3_SUPPORTED 1
+    #define FLAC__SSE4_1_SUPPORTED 1
+    #define FLAC__SSE4_2_SUPPORTED 1
+  #endif
+  #ifdef FLAC__USE_AVX
+    #if (__INTEL_COMPILER >= 1110) /* Intel C++ Compiler 11.1 */
+      #define FLAC__AVX_SUPPORTED 1
+    #endif
+    #if (__INTEL_COMPILER >= 1300) /* Intel C++ Compiler 13.0 */
+      #define FLAC__AVX2_SUPPORTED 1
+      #define FLAC__FMA_SUPPORTED 1
+    #endif
+  #endif
+#elif defined __clang__ && __has_attribute(__target__) /* clang */
+  #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
+  #define FLAC__SSE_SUPPORTED 1
+  #define FLAC__SSE2_SUPPORTED 1
+  #define FLAC__SSSE3_SUPPORTED 1
+  #define FLAC__SSE4_1_SUPPORTED 1
+  #define FLAC__SSE4_2_SUPPORTED 1
+  #ifdef FLAC__USE_AVX
+    #define FLAC__AVX_SUPPORTED 1
+    #define FLAC__AVX2_SUPPORTED 1
+    #define FLAC__FMA_SUPPORTED 1
+    #define FLAC__BMI2_SUPPORTED 1
+  #endif
+#elif defined __GNUC__ && !defined __clang__ && (__GNUC__ > 4 || (__GNUC__ == 4 && __GNUC_MINOR__ >= 9)) /* GCC 4.9+ */
+  #define FLAC__SSE_TARGET(x) __attribute__ ((__target__ (x)))
+  #define FLAC__SSE_SUPPORTED 1
+  #define FLAC__SSE2_SUPPORTED 1
+  #define FLAC__SSSE3_SUPPORTED 1
+  #define FLAC__SSE4_1_SUPPORTED 1
+  #define FLAC__SSE4_2_SUPPORTED 1
+  #ifdef FLAC__USE_AVX
+    #define FLAC__AVX_SUPPORTED 1
+    #define FLAC__AVX2_SUPPORTED 1
+    #define FLAC__FMA_SUPPORTED 1
+    #define FLAC__BMI2_SUPPORTED 1
+  #endif
+#elif defined _MSC_VER
+  #define FLAC__SSE_TARGET(x)
+  #define FLAC__SSE_SUPPORTED 1
+  #define FLAC__SSE2_SUPPORTED 1
+  #if (_MSC_VER >= 1500) /* MS Visual Studio 2008 */
+    #define FLAC__SSSE3_SUPPORTED 1
+    #define FLAC__SSE4_1_SUPPORTED 1
+    #define FLAC__SSE4_2_SUPPORTED 1
+  #endif
+  #ifdef FLAC__USE_AVX
+    #if (_MSC_FULL_VER >= 160040219) /* MS Visual Studio 2010 SP1 */
+      #define FLAC__AVX_SUPPORTED 1
+    #endif
+    #if (_MSC_VER >= 1700) /* MS Visual Studio 2012 */
+      #define FLAC__AVX2_SUPPORTED 1
+      #define FLAC__FMA_SUPPORTED 1
+    #endif
+  #endif
+#else
+  #define FLAC__SSE_TARGET(x)
+  #ifdef __SSE__
+    #define FLAC__SSE_SUPPORTED 1
+  #endif
+  #ifdef __SSE2__
+    #define FLAC__SSE2_SUPPORTED 1
+  #endif
+  #ifdef __SSSE3__
+    #define FLAC__SSSE3_SUPPORTED 1
+  #endif
+  #ifdef __SSE4_1__
+    #define FLAC__SSE4_1_SUPPORTED 1
+  #endif
+  #ifdef __SSE4_2__
+    #define FLAC__SSE4_2_SUPPORTED 1
+  #endif
+  #ifdef FLAC__USE_AVX
+    #ifdef __AVX__
+      #define FLAC__AVX_SUPPORTED 1
+    #endif
+    #ifdef __AVX2__
+      #define FLAC__AVX2_SUPPORTED 1
+    #endif
+    #ifdef __FMA__
+      #define FLAC__FMA_SUPPORTED 1
+    #endif
+  #endif
+#endif /* compiler version */
+#endif /* intrinsics support */
+
+
+#ifndef FLAC__AVX_SUPPORTED
+#define FLAC__AVX_SUPPORTED 0
+#endif
+
+typedef enum {
+	FLAC__CPUINFO_TYPE_IA32,
+	FLAC__CPUINFO_TYPE_X86_64,
+	FLAC__CPUINFO_TYPE_UNKNOWN
+} FLAC__CPUInfo_Type;
+
+typedef struct {
+	FLAC__bool intel;
+
+	FLAC__bool cmov;
+	FLAC__bool mmx;
+	FLAC__bool sse;
+	FLAC__bool sse2;
+
+	FLAC__bool sse3;
+	FLAC__bool ssse3;
+	FLAC__bool sse41;
+	FLAC__bool sse42;
+	FLAC__bool avx;
+	FLAC__bool avx2;
+	FLAC__bool fma;
+	FLAC__bool bmi2;
+} FLAC__CPUInfo_x86;
+
+typedef struct {
+	FLAC__bool use_asm;
+	FLAC__CPUInfo_Type type;
+	FLAC__CPUInfo_x86 x86;
+} FLAC__CPUInfo;
+
+void FLAC__cpu_info(FLAC__CPUInfo *info);
+
+FLAC__uint32 FLAC__cpu_have_cpuid_asm_ia32(void);
+
+void         FLAC__cpu_info_asm_ia32(FLAC__uint32 level, FLAC__uint32 *eax, FLAC__uint32 *ebx, FLAC__uint32 *ecx, FLAC__uint32 *edx);
+
+#endif

extern/flac/src/libFLAC/include/private/crc.h

@@ -0,0 +1,60 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__CRC_H
+#define FLAC__PRIVATE__CRC_H
+
+#include "FLAC/ordinals.h"
+
+/* 8 bit CRC generator, MSB shifted first
+** polynomial = x^8 + x^2 + x^1 + x^0
+** init = 0
+*/
+FLAC__uint8 FLAC__crc8(const FLAC__byte *data, uint32_t len);
+
+/* 16 bit CRC generator, MSB shifted first
+** polynomial = x^16 + x^15 + x^2 + x^0
+** init = 0
+*/
+extern FLAC__uint16 const FLAC__crc16_table[8][256];
+
+#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) & 0xffff) ^ FLAC__crc16_table[0][((crc)>>8) ^ (data)])
+/* this alternate may be faster on some systems/compilers */
+#if 0
+#define FLAC__CRC16_UPDATE(data, crc) ((((crc)<<8) ^ FLAC__crc16_table[0][((crc)>>8) ^ (data)]) & 0xffff)
+#endif
+
+FLAC__uint16 FLAC__crc16(const FLAC__byte *data, uint32_t len);
+FLAC__uint16 FLAC__crc16_update_words32(const FLAC__uint32 *words, uint32_t len, FLAC__uint16 crc);
+FLAC__uint16 FLAC__crc16_update_words64(const FLAC__uint64 *words, uint32_t len, FLAC__uint16 crc);
+
+#endif

extern/flac/src/libFLAC/include/private/fixed.h

@@ -0,0 +1,117 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__FIXED_H
+#define FLAC__PRIVATE__FIXED_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "private/cpu.h"
+#include "private/float.h"
+#include "FLAC/format.h"
+
+/*
+ *	FLAC__fixed_compute_best_predictor()
+ *	--------------------------------------------------------------------
+ *	Compute the best fixed predictor and the expected bits-per-sample
+ *  of the residual signal for each order.  The _wide() version uses
+ *  64-bit integers which is statistically necessary when bits-per-
+ *  sample + log2(blocksize) > 30
+ *
+ *	IN data[0,data_len-1]
+ *	IN data_len
+ *	OUT residual_bits_per_sample[0,FLAC__MAX_FIXED_ORDER]
+ */
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+uint32_t FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_33bit(const FLAC__int64 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+# ifndef FLAC__NO_ASM
+#  if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#   ifdef FLAC__SSE2_SUPPORTED
+uint32_t FLAC__fixed_compute_best_predictor_intrin_sse2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER + 1]);
+#   endif
+#   ifdef FLAC__SSSE3_SUPPORTED
+uint32_t FLAC__fixed_compute_best_predictor_intrin_ssse3(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+#   endif
+#   ifdef FLAC__SSE4_2_SUPPORTED
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_intrin_sse42(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+#   endif
+#   ifdef FLAC__AVX2_SUPPORTED
+uint32_t FLAC__fixed_compute_best_predictor_wide_intrin_avx2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_intrin_avx2(const FLAC__int32 data[], uint32_t data_len, float residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+#   endif
+#  endif
+# endif
+#else
+uint32_t FLAC__fixed_compute_best_predictor(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_wide(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual(const FLAC__int32 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+uint32_t FLAC__fixed_compute_best_predictor_limit_residual_33bit(const FLAC__int64 data[], uint32_t data_len, FLAC__fixedpoint residual_bits_per_sample[FLAC__MAX_FIXED_ORDER+1]);
+#endif
+
+/*
+ *	FLAC__fixed_compute_residual()
+ *	--------------------------------------------------------------------
+ *	Compute the residual signal obtained from sutracting the predicted
+ *	signal from the original.
+ *
+ *	IN data[-order,data_len-1]        original signal (NOTE THE INDICES!)
+ *	IN data_len                       length of original signal
+ *	IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
+ *	OUT residual[0,data_len-1]        residual signal
+ */
+void FLAC__fixed_compute_residual(const FLAC__int32 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[]);
+void FLAC__fixed_compute_residual_wide(const FLAC__int32 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[]);
+void FLAC__fixed_compute_residual_wide_33bit(const FLAC__int64 data[], uint32_t data_len, uint32_t order, FLAC__int32 residual[]);
+
+/*
+ *	FLAC__fixed_restore_signal()
+ *	--------------------------------------------------------------------
+ *	Restore the original signal by summing the residual and the
+ *	predictor.
+ *
+ *	IN residual[0,data_len-1]         residual signal
+ *	IN data_len                       length of original signal
+ *	IN order <= FLAC__MAX_FIXED_ORDER fixed-predictor order
+ *	*** IMPORTANT: the caller must pass in the historical samples:
+ *	IN  data[-order,-1]               previously-reconstructed historical samples
+ *	OUT data[0,data_len-1]            original signal
+ */
+void FLAC__fixed_restore_signal(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int32 data[]);
+void FLAC__fixed_restore_signal_wide(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int32 data[]);
+void FLAC__fixed_restore_signal_wide_33bit(const FLAC__int32 residual[], uint32_t data_len, uint32_t order, FLAC__int64 data[]);
+
+#endif

extern/flac/src/libFLAC/include/private/float.h

@@ -0,0 +1,95 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__FLOAT_H
+#define FLAC__PRIVATE__FLOAT_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "FLAC/ordinals.h"
+
+/*
+ * All the code in libFLAC that uses float and double
+ * should be protected by checks of the macro
+ * FLAC__INTEGER_ONLY_LIBRARY.
+ *
+ */
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+/*
+ * FLAC__real is the basic floating point type used in LPC analysis.
+ *
+ * WATCHOUT: changing FLAC__real will change the signatures of many
+ * functions that have assembly language equivalents and break them.
+ */
+typedef float FLAC__real;
+#else
+/*
+ * The convention for FLAC__fixedpoint is to use the upper 16 bits
+ * for the integer part and lower 16 bits for the fractional part.
+ */
+typedef FLAC__int32 FLAC__fixedpoint;
+extern const FLAC__fixedpoint FLAC__FP_ZERO;
+extern const FLAC__fixedpoint FLAC__FP_ONE_HALF;
+extern const FLAC__fixedpoint FLAC__FP_ONE;
+extern const FLAC__fixedpoint FLAC__FP_LN2;
+extern const FLAC__fixedpoint FLAC__FP_E;
+
+#define FLAC__fixedpoint_trunc(x) ((x)>>16)
+
+#define FLAC__fixedpoint_mul(x, y) ( (FLAC__fixedpoint) ( ((FLAC__int64)(x)*(FLAC__int64)(y)) >> 16 ) )
+
+#define FLAC__fixedpoint_div(x, y) ( (FLAC__fixedpoint) ( ( ((FLAC__int64)(x)<<32) / (FLAC__int64)(y) ) >> 16 ) )
+
+/*
+ *	FLAC__fixedpoint_log2()
+ *	--------------------------------------------------------------------
+ *	Returns the base-2 logarithm of the fixed-point number 'x' using an
+ *	algorithm by Knuth for x >= 1.0
+ *
+ *	'fracbits' is the number of fractional bits of 'x'.  'fracbits' must
+ *	be < 32 and evenly divisible by 4 (0 is OK but not very precise).
+ *
+ *	'precision' roughly limits the number of iterations that are done;
+ *	use (uint32_t)(-1) for maximum precision.
+ *
+ *	If 'x' is less than one -- that is, x < (1<<fracbits) -- then this
+ *	function will punt and return 0.
+ *
+ *	The return value will also have 'fracbits' fractional bits.
+ */
+FLAC__uint32 FLAC__fixedpoint_log2(FLAC__uint32 x, uint32_t fracbits, uint32_t precision);
+
+#endif
+
+#endif

extern/flac/src/libFLAC/include/private/format.h

@@ -0,0 +1,47 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__FORMAT_H
+#define FLAC__PRIVATE__FORMAT_H
+
+#include "FLAC/format.h"
+
+#if 0 /* UNUSED */
+uint32_t FLAC__format_get_max_rice_partition_order(uint32_t blocksize, uint32_t predictor_order);
+#endif
+uint32_t FLAC__format_get_max_rice_partition_order_from_blocksize(uint32_t blocksize);
+uint32_t FLAC__format_get_max_rice_partition_order_from_blocksize_limited_max_and_predictor_order(uint32_t limit, uint32_t blocksize, uint32_t predictor_order);
+void FLAC__format_entropy_coding_method_partitioned_rice_contents_init(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
+void FLAC__format_entropy_coding_method_partitioned_rice_contents_clear(FLAC__EntropyCodingMethod_PartitionedRiceContents *object);
+FLAC__bool FLAC__format_entropy_coding_method_partitioned_rice_contents_ensure_size(FLAC__EntropyCodingMethod_PartitionedRiceContents *object, uint32_t max_partition_order);
+
+#endif

extern/flac/src/libFLAC/include/private/lpc.h

@@ -0,0 +1,239 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__LPC_H
+#define FLAC__PRIVATE__LPC_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "private/cpu.h"
+#include "private/float.h"
+#include "FLAC/format.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+/*
+ *	FLAC__lpc_window_data()
+ *	--------------------------------------------------------------------
+ *	Applies the given window to the data.
+ *  OPT: asm implementation
+ *
+ *	IN in[0,data_len-1]
+ *	IN window[0,data_len-1]
+ *	OUT out[0,lag-1]
+ *	IN data_len
+ */
+void FLAC__lpc_window_data(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len);
+void FLAC__lpc_window_data_wide(const FLAC__int64 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len);
+void FLAC__lpc_window_data_partial(const FLAC__int32 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len, uint32_t part_size, uint32_t data_shift);
+void FLAC__lpc_window_data_partial_wide(const FLAC__int64 in[], const FLAC__real window[], FLAC__real out[], uint32_t data_len, uint32_t part_size, uint32_t data_shift);
+
+/*
+ *	FLAC__lpc_compute_autocorrelation()
+ *	--------------------------------------------------------------------
+ *	Compute the autocorrelation for lags between 0 and lag-1.
+ *	Assumes data[] outside of [0,data_len-1] == 0.
+ *	Asserts that lag > 0.
+ *
+ *	IN data[0,data_len-1]
+ *	IN data_len
+ *	IN 0 < lag <= data_len
+ *	OUT autoc[0,lag-1]
+ */
+void FLAC__lpc_compute_autocorrelation(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#ifndef FLAC__NO_ASM
+#  if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#    ifdef FLAC__SSE2_SUPPORTED
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#    endif
+#  endif
+#  if defined FLAC__CPU_X86_64 && FLAC__HAS_X86INTRIN
+#    ifdef FLAC__FMA_SUPPORTED
+void FLAC__lpc_compute_autocorrelation_intrin_fma_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_fma_lag_12(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_fma_lag_16(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#    endif
+#  endif
+#if defined FLAC__CPU_ARM64 && FLAC__HAS_NEONINTRIN && FLAC__HAS_A64NEONINTRIN
+void FLAC__lpc_compute_autocorrelation_intrin_neon_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_neon_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+void FLAC__lpc_compute_autocorrelation_intrin_neon_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[]);
+#endif
+#endif /* FLAC__NO_ASM */
+
+/*
+ *	FLAC__lpc_compute_lp_coefficients()
+ *	--------------------------------------------------------------------
+ *	Computes LP coefficients for orders 1..max_order.
+ *	Do not call if autoc[0] == 0.0.  This means the signal is zero
+ *	and there is no point in calculating a predictor.
+ *
+ *	IN autoc[0,max_order]                      autocorrelation values
+ *	IN 0 < max_order <= FLAC__MAX_LPC_ORDER    max LP order to compute
+ *	OUT lp_coeff[0,max_order-1][0,max_order-1] LP coefficients for each order
+ *	*** IMPORTANT:
+ *	*** lp_coeff[0,max_order-1][max_order,FLAC__MAX_LPC_ORDER-1] are untouched
+ *	OUT error[0,max_order-1]                   error for each order (more
+ *	                                           specifically, the variance of
+ *	                                           the error signal times # of
+ *	                                           samples in the signal)
+ *
+ *	Example: if max_order is 9, the LP coefficients for order 9 will be
+ *	         in lp_coeff[8][0,8], the LP coefficients for order 8 will be
+ *			 in lp_coeff[7][0,7], etc.
+ */
+void FLAC__lpc_compute_lp_coefficients(const double autoc[], uint32_t *max_order, FLAC__real lp_coeff[][FLAC__MAX_LPC_ORDER], double error[]);
+
+/*
+ *	FLAC__lpc_quantize_coefficients()
+ *	--------------------------------------------------------------------
+ *	Quantizes the LP coefficients.  NOTE: precision + bits_per_sample
+ *	must be less than 32 (sizeof(FLAC__int32)*8).
+ *
+ *	IN lp_coeff[0,order-1]    LP coefficients
+ *	IN order                  LP order
+ *	IN FLAC__MIN_QLP_COEFF_PRECISION < precision
+ *	                          desired precision (in bits, including sign
+ *	                          bit) of largest coefficient
+ *	OUT qlp_coeff[0,order-1]  quantized coefficients
+ *	OUT shift                 # of bits to shift right to get approximated
+ *	                          LP coefficients.  NOTE: could be negative.
+ *	RETURN 0 => quantization OK
+ *	       1 => coefficients require too much shifting for *shift to
+ *              fit in the LPC subframe header.  'shift' is unset.
+ *         2 => coefficients are all zero, which is bad.  'shift' is
+ *              unset.
+ */
+int FLAC__lpc_quantize_coefficients(const FLAC__real lp_coeff[], uint32_t order, uint32_t precision, FLAC__int32 qlp_coeff[], int *shift);
+
+/*
+ *	FLAC__lpc_compute_residual_from_qlp_coefficients()
+ *	--------------------------------------------------------------------
+ *	Compute the residual signal obtained from sutracting the predicted
+ *	signal from the original.
+ *
+ *	IN data[-order,data_len-1] original signal (NOTE THE INDICES!)
+ *	IN data_len                length of original signal
+ *	IN qlp_coeff[0,order-1]    quantized LP coefficients
+ *	IN order > 0               LP order
+ *	IN lp_quantization         quantization of LP coefficients in bits
+ *	OUT residual[0,data_len-1] residual signal
+ */
+void FLAC__lpc_compute_residual_from_qlp_coefficients(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+FLAC__bool FLAC__lpc_compute_residual_from_qlp_coefficients_limit_residual(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+FLAC__bool FLAC__lpc_compute_residual_from_qlp_coefficients_limit_residual_33bit(const FLAC__int64 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#ifndef FLAC__NO_ASM
+#   ifdef FLAC__CPU_ARM64
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_neon(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_neon(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#   endif
+
+#  if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#    ifdef FLAC__SSE2_SUPPORTED
+void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#    endif
+#    ifdef FLAC__SSE4_1_SUPPORTED
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#    endif
+#    ifdef FLAC__AVX2_SUPPORTED
+void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_avx2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_avx2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_avx2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[]);
+#    endif
+#  endif
+#endif
+
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+
+FLAC__uint64 FLAC__lpc_max_prediction_value_before_shift(uint32_t subframe_bps, const FLAC__int32 qlp_coeff[], uint32_t order);
+uint32_t FLAC__lpc_max_prediction_before_shift_bps(uint32_t subframe_bps, const FLAC__int32 qlp_coeff[], uint32_t order);
+uint32_t FLAC__lpc_max_residual_bps(uint32_t subframe_bps, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization);
+
+/*
+ *	FLAC__lpc_restore_signal()
+ *	--------------------------------------------------------------------
+ *	Restore the original signal by summing the residual and the
+ *	predictor.
+ *
+ *	IN residual[0,data_len-1]  residual signal
+ *	IN data_len                length of original signal
+ *	IN qlp_coeff[0,order-1]    quantized LP coefficients
+ *	IN order > 0               LP order
+ *	IN lp_quantization         quantization of LP coefficients in bits
+ *	*** IMPORTANT: the caller must pass in the historical samples:
+ *	IN  data[-order,-1]        previously-reconstructed historical samples
+ *	OUT data[0,data_len-1]     original signal
+ */
+void FLAC__lpc_restore_signal(const FLAC__int32 residual[], uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 data[]);
+void FLAC__lpc_restore_signal_wide(const FLAC__int32 residual[], uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 data[]);
+void FLAC__lpc_restore_signal_wide_33bit(const FLAC__int32 residual[], uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int64 data[]);
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+/*
+ *	FLAC__lpc_compute_expected_bits_per_residual_sample()
+ *	--------------------------------------------------------------------
+ *	Compute the expected number of bits per residual signal sample
+ *	based on the LP error (which is related to the residual variance).
+ *
+ *	IN lpc_error >= 0.0   error returned from calculating LP coefficients
+ *	IN total_samples > 0  # of samples in residual signal
+ *	RETURN                expected bits per sample
+ */
+double FLAC__lpc_compute_expected_bits_per_residual_sample(double lpc_error, uint32_t total_samples);
+double FLAC__lpc_compute_expected_bits_per_residual_sample_with_error_scale(double lpc_error, double error_scale);
+
+/*
+ *	FLAC__lpc_compute_best_order()
+ *	--------------------------------------------------------------------
+ *	Compute the best order from the array of signal errors returned
+ *	during coefficient computation.
+ *
+ *	IN lpc_error[0,max_order-1] >= 0.0  error returned from calculating LP coefficients
+ *	IN max_order > 0                    max LP order
+ *	IN total_samples > 0                # of samples in residual signal
+ *	IN overhead_bits_per_order          # of bits overhead for each increased LP order
+ *	                                    (includes warmup sample size and quantized LP coefficient)
+ *	RETURN [1,max_order]                best order
+ */
+uint32_t FLAC__lpc_compute_best_order(const double lpc_error[], uint32_t max_order, uint32_t total_samples, uint32_t overhead_bits_per_order);
+
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+
+#endif

extern/flac/src/libFLAC/include/private/macros.h

@@ -0,0 +1,74 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2012-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__MACROS_H
+#define FLAC__PRIVATE__MACROS_H
+
+#if defined(__GNUC__) && (__GNUC__ > 4 || ( __GNUC__ == 4 && __GNUC_MINOR__ >= 3))
+
+#define flac_max(a,b) \
+	({ __typeof__ (a) _a = (a); \
+	__typeof__ (b) _b = (b); \
+	_a > _b ? _a : _b; })
+
+#define MIN_PASTE(A,B) A##B
+#define MIN_IMPL(A,B,L) ({ \
+	__typeof__(A) MIN_PASTE(__a,L) = (A); \
+	__typeof__(B) MIN_PASTE(__b,L) = (B); \
+	MIN_PASTE(__a,L) < MIN_PASTE(__b,L) ? MIN_PASTE(__a,L) : MIN_PASTE(__b,L); \
+	})
+
+#define flac_min(A,B) MIN_IMPL(A,B,__COUNTER__)
+
+/* Whatever other unix that has sys/param.h */
+#elif defined(HAVE_SYS_PARAM_H)
+#include <sys/param.h>
+#if defined(MIN) && defined(MAX)
+#define flac_max(a,b) MAX(a,b)
+#define flac_min(a,b) MIN(a,b)
+#endif
+
+/* Windows VS has them in stdlib.h.. XXX:Untested */
+#elif defined(_MSC_VER)
+#include <stdlib.h>
+#define flac_max(a,b) __max(a,b)
+#define flac_min(a,b) __min(a,b)
+#endif
+
+#ifndef flac_min
+#define flac_min(x,y)	((x) <= (y) ? (x) : (y))
+#endif
+
+#ifndef flac_max
+#define flac_max(x,y)	((x) >= (y) ? (x) : (y))
+#endif
+
+#endif

extern/flac/src/libFLAC/include/private/md5.h

@@ -0,0 +1,50 @@
+#ifndef FLAC__PRIVATE__MD5_H
+#define FLAC__PRIVATE__MD5_H
+
+/*
+ * This is the header file for the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest.  This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ *
+ * Changed so as no longer to depend on Colin Plumb's `usual.h'
+ * header definitions; now uses stuff from dpkg's config.h
+ *  - Ian Jackson <ijackson@nyx.cs.du.edu>.
+ * Still in the public domain.
+ *
+ * Josh Coalson: made some changes to integrate with libFLAC.
+ * Still in the public domain, with no warranty.
+ */
+
+#include "FLAC/ordinals.h"
+
+typedef union {
+	FLAC__byte *p8;
+	FLAC__int16 *p16;
+	FLAC__int32 *p32;
+} FLAC__multibyte;
+
+typedef struct {
+	FLAC__uint32 in[16];
+	FLAC__uint32 buf[4];
+	FLAC__uint32 bytes[2];
+	FLAC__multibyte internal_buf;
+	size_t capacity;
+} FLAC__MD5Context;
+
+void FLAC__MD5Init(FLAC__MD5Context *context);
+void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *context);
+
+FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], uint32_t channels, uint32_t samples, uint32_t bytes_per_sample);
+
+#endif

extern/flac/src/libFLAC/include/private/memory.h

@@ -0,0 +1,58 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__MEMORY_H
+#define FLAC__PRIVATE__MEMORY_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdlib.h> /* for size_t */
+
+#include "private/float.h"
+#include "FLAC/ordinals.h" /* for FLAC__bool */
+
+/* Returns the unaligned address returned by malloc.
+ * Use free() on this address to deallocate.
+ */
+void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address);
+FLAC__bool FLAC__memory_alloc_aligned_int32_array(size_t elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer);
+FLAC__bool FLAC__memory_alloc_aligned_uint32_array(size_t elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer);
+FLAC__bool FLAC__memory_alloc_aligned_int64_array(size_t elements, FLAC__int64 **unaligned_pointer, FLAC__int64 **aligned_pointer);
+FLAC__bool FLAC__memory_alloc_aligned_uint64_array(size_t elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer);
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+FLAC__bool FLAC__memory_alloc_aligned_real_array(size_t elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer);
+#endif
+void *safe_malloc_mul_2op_p(size_t size1, size_t size2);
+
+#endif

extern/flac/src/libFLAC/include/private/metadata.h

@@ -0,0 +1,46 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__METADATA_H
+#define FLAC__PRIVATE__METADATA_H
+
+#include "FLAC/metadata.h"
+
+/* WATCHOUT: all malloc()ed data in the block is free()ed; this may not
+ * be a consistent state (e.g. PICTURE) or equivalent to the initial
+ * state after FLAC__metadata_object_new()
+ */
+void FLAC__metadata_object_delete_data(FLAC__StreamMetadata *object);
+
+void FLAC__metadata_object_cuesheet_track_delete_data(FLAC__StreamMetadata_CueSheet_Track *object);
+
+#endif

extern/flac/src/libFLAC/include/private/ogg_decoder_aspect.h

@@ -0,0 +1,119 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__OGG_DECODER_ASPECT_H
+#define FLAC__PRIVATE__OGG_DECODER_ASPECT_H
+
+#include <ogg/ogg.h>
+
+#include "FLAC/ordinals.h"
+#include "FLAC/stream_decoder.h" /* for FLAC__StreamDecoderReadStatus */
+#include "share/compat.h"
+
+typedef struct FLAC__OggDecoderAspect_LinkDetails {
+	long serial_number;
+	FLAC__off_t start_byte;
+	FLAC__off_t end_byte;
+	uint64_t samples;
+	uint32_t number_of_other_streams;
+	long * other_serial_numbers;
+	FLAC__bool is_last;
+} FLAC__OggDecoderAspect_LinkDetails;
+
+typedef struct FLAC__OggDecoderAspect_TargetLink {
+	long serial_number;
+	FLAC__off_t start_byte;
+	FLAC__off_t end_byte;
+	uint64_t samples_in_preceding_links;
+	uint64_t samples_this_link;
+	uint32_t linknumber;
+} FLAC__OggDecoderAspect_TargetLink;
+
+typedef struct FLAC__OggDecoderAspect {
+	/* these are storage for values that can be set through the API */
+	FLAC__bool use_first_serial_number;
+	long serial_number;
+
+	/* these are for internal state related to Ogg decoding */
+	ogg_stream_state stream_state;
+	ogg_sync_state sync_state;
+	uint32_t version_major, version_minor;
+	FLAC__bool need_serial_number;
+	FLAC__bool beginning_of_link;
+	FLAC__bool bos_flag_seen;
+	FLAC__bool end_of_stream;
+	FLAC__bool end_of_link;
+	FLAC__bool decode_chained_stream;
+	FLAC__bool have_working_page; /* only if true will the following vars be valid */
+	ogg_page working_page;
+	FLAC__bool have_working_packet; /* only if true will the following vars be valid */
+	ogg_packet working_packet; /* as we work through the packet we will move working_packet.packet forward and working_packet.bytes down */
+	FLAC__OggDecoderAspect_LinkDetails *linkdetails;
+	FLAC__OggDecoderAspect_TargetLink target_link; /* to pass data to the seek routine */
+	uint32_t number_of_links_detected;
+	uint32_t number_of_links_indexed;
+	uint32_t number_of_links_allocated;
+	uint32_t current_linknumber; /* The linknumber the FLAC parser is in */
+	uint32_t current_linknumber_advance_read; /* The linknumber the ogg parser is in. The name 'advance read' is because it reads ahead, to see whether there is another link */
+	FLAC__bool is_seeking;
+} FLAC__OggDecoderAspect;
+
+void FLAC__ogg_decoder_aspect_set_serial_number(FLAC__OggDecoderAspect *aspect, long value);
+void FLAC__ogg_decoder_aspect_set_defaults(FLAC__OggDecoderAspect *aspect);
+FLAC__bool FLAC__ogg_decoder_aspect_init(FLAC__OggDecoderAspect *aspect);
+void FLAC__ogg_decoder_aspect_finish(FLAC__OggDecoderAspect *aspect);
+void FLAC__ogg_decoder_aspect_flush(FLAC__OggDecoderAspect *aspect);
+void FLAC__ogg_decoder_aspect_reset(FLAC__OggDecoderAspect* aspect);
+void FLAC__ogg_decoder_aspect_next_link(FLAC__OggDecoderAspect* aspect);
+FLAC__OggDecoderAspect_TargetLink * FLAC__ogg_decoder_aspect_get_target_link(FLAC__OggDecoderAspect* aspect, FLAC__uint64 target_sample);
+void FLAC__ogg_decoder_aspect_set_decode_chained_stream(FLAC__OggDecoderAspect* aspect, FLAC__bool value);
+FLAC__bool FLAC__ogg_decoder_aspect_get_decode_chained_stream(FLAC__OggDecoderAspect* aspect);
+void FLAC__ogg_decoder_aspect_set_seek_parameters(FLAC__OggDecoderAspect *aspect, FLAC__OggDecoderAspect_TargetLink *target_link);
+
+typedef enum {
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK = 0,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_LINK,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR,
+	FLAC__OGG_DECODER_ASPECT_READ_STATUS_CALLBACKS_NONFUNCTIONAL
+} FLAC__OggDecoderAspectReadStatus;
+
+typedef FLAC__OggDecoderAspectReadStatus (*FLAC__OggDecoderAspectReadCallbackProxy)(const void *decoder, FLAC__byte buffer[], size_t *bytes, void *client_data);
+
+FLAC__OggDecoderAspectReadStatus FLAC__ogg_decoder_aspect_read_callback_wrapper(FLAC__OggDecoderAspect *aspect, FLAC__byte buffer[], size_t *bytes, FLAC__OggDecoderAspectReadCallbackProxy read_callback, FLAC__StreamDecoderTellCallback tell_callback, const FLAC__StreamDecoder *decoder, void *client_data);
+FLAC__OggDecoderAspectReadStatus FLAC__ogg_decoder_aspect_skip_link(FLAC__OggDecoderAspect *aspect, FLAC__OggDecoderAspectReadCallbackProxy read_callback, FLAC__StreamDecoderSeekCallback seek_callback, FLAC__StreamDecoderTellCallback tell_callback, FLAC__StreamDecoderLengthCallback length_callback, const FLAC__StreamDecoder *decoder, void *client_data);
+#endif

extern/flac/src/libFLAC/include/private/ogg_encoder_aspect.h

@@ -0,0 +1,64 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__OGG_ENCODER_ASPECT_H
+#define FLAC__PRIVATE__OGG_ENCODER_ASPECT_H
+
+#include <ogg/ogg.h>
+
+#include "FLAC/ordinals.h"
+#include "FLAC/stream_encoder.h" /* for FLAC__StreamEncoderWriteStatus */
+
+typedef struct FLAC__OggEncoderAspect {
+	/* these are storage for values that can be set through the API */
+	long serial_number;
+	uint32_t num_metadata;
+
+	/* these are for internal state related to Ogg encoding */
+	ogg_stream_state stream_state;
+	ogg_page page;
+	FLAC__bool seen_magic; /* true if we've seen the fLaC magic in the write callback yet */
+	FLAC__bool is_first_packet;
+	FLAC__uint64 samples_written;
+	FLAC__int64 last_page_granule_pos;
+} FLAC__OggEncoderAspect;
+
+void FLAC__ogg_encoder_aspect_set_serial_number(FLAC__OggEncoderAspect *aspect, long value);
+FLAC__bool FLAC__ogg_encoder_aspect_set_num_metadata(FLAC__OggEncoderAspect *aspect, uint32_t value);
+void FLAC__ogg_encoder_aspect_set_defaults(FLAC__OggEncoderAspect *aspect);
+FLAC__bool FLAC__ogg_encoder_aspect_init(FLAC__OggEncoderAspect *aspect);
+void FLAC__ogg_encoder_aspect_finish(FLAC__OggEncoderAspect *aspect);
+
+typedef FLAC__StreamEncoderWriteStatus (*FLAC__OggEncoderAspectWriteCallbackProxy)(const FLAC__StreamEncoder *encoder, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, void *client_data);
+
+FLAC__StreamEncoderWriteStatus FLAC__ogg_encoder_aspect_write_callback_wrapper(FLAC__OggEncoderAspect *aspect, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, FLAC__bool is_last_block, FLAC__OggEncoderAspectWriteCallbackProxy write_callback, void *encoder, void *client_data);
+#endif

extern/flac/src/libFLAC/include/private/ogg_helper.h

@@ -0,0 +1,44 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__OGG_HELPER_H
+#define FLAC__PRIVATE__OGG_HELPER_H
+
+#include <ogg/ogg.h>
+#include "FLAC/stream_encoder.h" /* for FLAC__StreamEncoder */
+
+void simple_ogg_page__init(ogg_page *page);
+void simple_ogg_page__clear(ogg_page *page);
+FLAC__bool simple_ogg_page__get_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderReadCallback read_callback, void *client_data);
+FLAC__bool simple_ogg_page__set_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderWriteCallback write_callback, void *client_data);
+
+#endif

extern/flac/src/libFLAC/include/private/ogg_mapping.h

@@ -0,0 +1,64 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__OGG_MAPPING_H
+#define FLAC__PRIVATE__OGG_MAPPING_H
+
+#include "FLAC/ordinals.h"
+
+/** The length of the packet type field in bytes. */
+#define FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH (1u)
+
+extern const uint32_t FLAC__OGG_MAPPING_PACKET_TYPE_LEN; /* = 8 bits */
+
+extern const FLAC__byte FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE; /* = 0x7f */
+
+/** The length of the 'FLAC' magic in bytes. */
+#define FLAC__OGG_MAPPING_MAGIC_LENGTH (4u)
+
+extern const FLAC__byte * const FLAC__OGG_MAPPING_MAGIC; /* = "FLAC" */
+
+extern const uint32_t FLAC__OGG_MAPPING_VERSION_MAJOR_LEN; /* = 8 bits */
+extern const uint32_t FLAC__OGG_MAPPING_VERSION_MINOR_LEN; /* = 8 bits */
+
+/** The length of the Ogg FLAC mapping major version number in bytes. */
+#define FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH (1u)
+
+/** The length of the Ogg FLAC mapping minor version number in bytes. */
+#define FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH (1u)
+
+extern const uint32_t FLAC__OGG_MAPPING_NUM_HEADERS_LEN; /* = 16 bits */
+
+/** The length of the #-of-header-packets number bytes. */
+#define FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH (2u)
+
+#endif

extern/flac/src/libFLAC/include/private/stream_encoder.h

@@ -0,0 +1,74 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__STREAM_ENCODER_H
+#define FLAC__PRIVATE__STREAM_ENCODER_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+/*
+ * This is used to avoid overflow with unusual signals in 32-bit
+ * accumulator in the *precompute_partition_info_sums_* functions.
+ */
+#define FLAC__MAX_EXTRA_RESIDUAL_BPS 4
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+#define FLAC__STREAM_ENCODER_MAX_THREADS 16
+#define FLAC__STREAM_ENCODER_MAX_THREADTASKS 34
+#else
+#define FLAC__STREAM_ENCODER_MAX_THREADS 64
+#define FLAC__STREAM_ENCODER_MAX_THREADTASKS 130
+#endif
+
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && defined FLAC__HAS_X86INTRIN
+#include "private/cpu.h"
+#include "FLAC/format.h"
+
+#ifdef FLAC__SSE2_SUPPORTED
+extern void FLAC__precompute_partition_info_sums_intrin_sse2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
+			uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
+#endif
+
+#ifdef FLAC__SSSE3_SUPPORTED
+extern void FLAC__precompute_partition_info_sums_intrin_ssse3(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
+			uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
+#endif
+
+#ifdef FLAC__AVX2_SUPPORTED
+extern void FLAC__precompute_partition_info_sums_intrin_avx2(const FLAC__int32 residual[], FLAC__uint64 abs_residual_partition_sums[],
+			uint32_t residual_samples, uint32_t predictor_order, uint32_t min_partition_order, uint32_t max_partition_order, uint32_t bps);
+#endif
+
+#endif
+
+#endif

extern/flac/src/libFLAC/include/private/stream_encoder_framing.h

@@ -0,0 +1,46 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__STREAM_ENCODER_FRAMING_H
+#define FLAC__PRIVATE__STREAM_ENCODER_FRAMING_H
+
+#include "FLAC/format.h"
+#include "bitwriter.h"
+
+FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitWriter *bw, FLAC__bool update_vendor_string);
+FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__BitWriter *bw);
+FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw);
+FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, uint32_t residual_samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw);
+FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, uint32_t residual_samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw);
+FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, uint32_t samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw);
+
+#endif

extern/flac/src/libFLAC/include/private/window.h

@@ -0,0 +1,74 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2006-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PRIVATE__WINDOW_H
+#define FLAC__PRIVATE__WINDOW_H
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include "private/float.h"
+#include "FLAC/format.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+/*
+ *	FLAC__window_*()
+ *	--------------------------------------------------------------------
+ *	Calculates window coefficients according to different apodization
+ *	functions.
+ *
+ *	OUT window[0,L-1]
+ *	IN L (number of points in window)
+ */
+void FLAC__window_bartlett(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_bartlett_hann(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_blackman(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_blackman_harris_4term_92db_sidelobe(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_connes(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_flattop(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_gauss(FLAC__real *window, const FLAC__int32 L, const FLAC__real stddev); /* 0.0 < stddev <= 0.5 */
+void FLAC__window_hamming(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_hann(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_kaiser_bessel(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_nuttall(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_rectangle(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_triangle(FLAC__real *window, const FLAC__int32 L);
+void FLAC__window_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p);
+void FLAC__window_partial_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end);
+void FLAC__window_punchout_tukey(FLAC__real *window, const FLAC__int32 L, const FLAC__real p, const FLAC__real start, const FLAC__real end);
+void FLAC__window_welch(FLAC__real *window, const FLAC__int32 L);
+
+#endif /* !defined FLAC__INTEGER_ONLY_LIBRARY */
+
+#endif

extern/flac/src/libFLAC/include/protected/Makefile.am

@@ -0,0 +1,35 @@
+#  libFLAC - Free Lossless Audio Codec library
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  - Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#
+#  - Redistributions in binary form must reproduce the above copyright
+#  notice, this list of conditions and the following disclaimer in the
+#  documentation and/or other materials provided with the distribution.
+#
+#  - Neither the name of the Xiph.org Foundation nor the names of its
+#  contributors may be used to endorse or promote products derived from
+#  this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+noinst_HEADERS = \
+	all.h \
+	stream_decoder.h \
+	stream_encoder.h

extern/flac/src/libFLAC/include/protected/Makefile.in

@@ -0,0 +1,588 @@
+# Makefile.in generated by automake 1.16.5 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2021 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+#  libFLAC - Free Lossless Audio Codec library
+#  Copyright (C) 2001-2009  Josh Coalson
+#  Copyright (C) 2011-2025  Xiph.Org Foundation
+#
+#  Redistribution and use in source and binary forms, with or without
+#  modification, are permitted provided that the following conditions
+#  are met:
+#
+#  - Redistributions of source code must retain the above copyright
+#  notice, this list of conditions and the following disclaimer.
+#
+#  - Redistributions in binary form must reproduce the above copyright
+#  notice, this list of conditions and the following disclaimer in the
+#  documentation and/or other materials provided with the distribution.
+#
+#  - Neither the name of the Xiph.org Foundation nor the names of its
+#  contributors may be used to endorse or promote products derived from
+#  this software without specific prior written permission.
+#
+#  THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+#  ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+#  LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+#  A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+#  CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+#  EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+#  PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+#  LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+#  NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+#  SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+  if test -z '$(MAKELEVEL)'; then \
+    false; \
+  elif test -n '$(MAKE_HOST)'; then \
+    true; \
+  elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+    true; \
+  else \
+    false; \
+  fi; \
+}
+am__make_running_with_option = \
+  case $${target_option-} in \
+      ?) ;; \
+      *) echo "am__make_running_with_option: internal error: invalid" \
+              "target option '$${target_option-}' specified" >&2; \
+         exit 1;; \
+  esac; \
+  has_opt=no; \
+  sane_makeflags=$$MAKEFLAGS; \
+  if $(am__is_gnu_make); then \
+    sane_makeflags=$$MFLAGS; \
+  else \
+    case $$MAKEFLAGS in \
+      *\\[\ \	]*) \
+        bs=\\; \
+        sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+          | sed "s/$$bs$$bs[$$bs $$bs	]*//g"`;; \
+    esac; \
+  fi; \
+  skip_next=no; \
+  strip_trailopt () \
+  { \
+    flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+  }; \
+  for flg in $$sane_makeflags; do \
+    test $$skip_next = yes && { skip_next=no; continue; }; \
+    case $$flg in \
+      *=*|--*) continue;; \
+        -*I) strip_trailopt 'I'; skip_next=yes;; \
+      -*I?*) strip_trailopt 'I';; \
+        -*O) strip_trailopt 'O'; skip_next=yes;; \
+      -*O?*) strip_trailopt 'O';; \
+        -*l) strip_trailopt 'l'; skip_next=yes;; \
+      -*l?*) strip_trailopt 'l';; \
+      -[dEDm]) skip_next=yes;; \
+      -[JT]) skip_next=yes;; \
+    esac; \
+    case $$flg in \
+      *$$target_option*) has_opt=yes; break;; \
+    esac; \
+  done; \
+  test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+subdir = src/libFLAC/include/protected
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/add_cflags.m4 \
+	$(top_srcdir)/m4/add_cxxflags.m4 \
+	$(top_srcdir)/m4/ax_add_fortify_source.m4 \
+	$(top_srcdir)/m4/ax_check_compile_flag.m4 \
+	$(top_srcdir)/m4/ax_check_enable_debug.m4 \
+	$(top_srcdir)/m4/ax_pthread.m4 $(top_srcdir)/m4/bswap.m4 \
+	$(top_srcdir)/m4/clang.m4 $(top_srcdir)/m4/codeset.m4 \
+	$(top_srcdir)/m4/gcc_version.m4 $(top_srcdir)/m4/iconv.m4 \
+	$(top_srcdir)/m4/lib-ld.m4 $(top_srcdir)/m4/lib-link.m4 \
+	$(top_srcdir)/m4/lib-prefix.m4 $(top_srcdir)/m4/libtool.m4 \
+	$(top_srcdir)/m4/ltoptions.m4 $(top_srcdir)/m4/ltsugar.m4 \
+	$(top_srcdir)/m4/ltversion.m4 $(top_srcdir)/m4/lt~obsolete.m4 \
+	$(top_srcdir)/m4/ogg.m4 $(top_srcdir)/m4/really_gcc.m4 \
+	$(top_srcdir)/m4/stack_protect.m4 $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+	$(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(noinst_HEADERS) \
+	$(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES =
+CONFIG_CLEAN_VPATH_FILES =
+AM_V_P = $(am__v_P_@AM_V@)
+am__v_P_ = $(am__v_P_@AM_DEFAULT_V@)
+am__v_P_0 = false
+am__v_P_1 = :
+AM_V_GEN = $(am__v_GEN_@AM_V@)
+am__v_GEN_ = $(am__v_GEN_@AM_DEFAULT_V@)
+am__v_GEN_0 = @echo "  GEN     " $@;
+am__v_GEN_1 = 
+AM_V_at = $(am__v_at_@AM_V@)
+am__v_at_ = $(am__v_at_@AM_DEFAULT_V@)
+am__v_at_0 = @
+am__v_at_1 = 
+SOURCES =
+DIST_SOURCES =
+am__can_run_installinfo = \
+  case $$AM_UPDATE_INFO_DIR in \
+    n|no|NO) false;; \
+    *) (install-info --version) >/dev/null 2>&1;; \
+  esac
+HEADERS = $(noinst_HEADERS)
+am__tagged_files = $(HEADERS) $(SOURCES) $(TAGS_FILES) $(LISP)
+# Read a list of newline-separated strings from the standard input,
+# and print each of them once, without duplicates.  Input order is
+# *not* preserved.
+am__uniquify_input = $(AWK) '\
+  BEGIN { nonempty = 0; } \
+  { items[$$0] = 1; nonempty = 1; } \
+  END { if (nonempty) { for (i in items) print i; }; } \
+'
+# Make sure the list of sources is unique.  This is necessary because,
+# e.g., the same source file might be shared among _SOURCES variables
+# for different programs/libraries.
+am__define_uniq_tagged_files = \
+  list='$(am__tagged_files)'; \
+  unique=`for i in $$list; do \
+    if test -f "$$i"; then echo $$i; else echo $(srcdir)/$$i; fi; \
+  done | $(am__uniquify_input)`
+am__DIST_COMMON = $(srcdir)/Makefile.in
+DISTFILES = $(DIST_COMMON) $(DIST_SOURCES) $(TEXINFOS) $(EXTRA_DIST)
+ACLOCAL = @ACLOCAL@
+AMTAR = @AMTAR@
+AM_DEFAULT_VERBOSITY = @AM_DEFAULT_VERBOSITY@
+AR = @AR@
+AS = @AS@
+AUTOCONF = @AUTOCONF@
+AUTOHEADER = @AUTOHEADER@
+AUTOMAKE = @AUTOMAKE@
+AWK = @AWK@
+CC = @CC@
+CCAS = @CCAS@
+CCASDEPMODE = @CCASDEPMODE@
+CCASFLAGS = @CCASFLAGS@
+CCDEPMODE = @CCDEPMODE@
+CFLAGS = @CFLAGS@
+CPP = @CPP@
+CPPFLAGS = @CPPFLAGS@
+CSCOPE = @CSCOPE@
+CTAGS = @CTAGS@
+CXX = @CXX@
+CXXCPP = @CXXCPP@
+CXXDEPMODE = @CXXDEPMODE@
+CXXFLAGS = @CXXFLAGS@
+CYGPATH_W = @CYGPATH_W@
+DEFS = @DEFS@
+DEPDIR = @DEPDIR@
+DLLTOOL = @DLLTOOL@
+DOXYGEN = @DOXYGEN@
+DSYMUTIL = @DSYMUTIL@
+DUMPBIN = @DUMPBIN@
+ECHO_C = @ECHO_C@
+ECHO_N = @ECHO_N@
+ECHO_T = @ECHO_T@
+EGREP = @EGREP@
+ENABLE_64_BIT_WORDS = @ENABLE_64_BIT_WORDS@
+ETAGS = @ETAGS@
+EXEEXT = @EXEEXT@
+FGREP = @FGREP@
+FILECMD = @FILECMD@
+FLAC_STATIC_LIBS = @FLAC_STATIC_LIBS@
+FLAC__HAS_OGG = @FLAC__HAS_OGG@
+FLAC__TEST_LEVEL = @FLAC__TEST_LEVEL@
+FLAC__TEST_WITH_VALGRIND = @FLAC__TEST_WITH_VALGRIND@
+GCC_MAJOR_VERSION = @GCC_MAJOR_VERSION@
+GCC_MINOR_VERSION = @GCC_MINOR_VERSION@
+GCC_VERSION = @GCC_VERSION@
+GIT_COMMIT_VERSION_HASH = @GIT_COMMIT_VERSION_HASH@
+GIT_FOUND = @GIT_FOUND@
+GREP = @GREP@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBICONV = @LIBICONV@
+LIBOBJS = @LIBOBJS@
+LIBS = @LIBS@
+LIBTOOL = @LIBTOOL@
+LIB_CLOCK_GETTIME = @LIB_CLOCK_GETTIME@
+LIB_FUZZING_ENGINE = @LIB_FUZZING_ENGINE@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBICONV = @LTLIBICONV@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MKDIR_P = @MKDIR_P@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
+OBJEXT = @OBJEXT@
+OBJ_FORMAT = @OBJ_FORMAT@
+OGG_CFLAGS = @OGG_CFLAGS@
+OGG_LIBS = @OGG_LIBS@
+OGG_PACKAGE = @OGG_PACKAGE@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PANDOC = @PANDOC@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_CXX = @PTHREAD_CXX@
+PTHREAD_LIBS = @PTHREAD_LIBS@
+RANLIB = @RANLIB@
+RC = @RC@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+STRIP = @STRIP@
+VERSION = @VERSION@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+ax_pthread_config = @ax_pthread_config@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+runstatedir = @runstatedir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+noinst_HEADERS = \
+	all.h \
+	stream_decoder.h \
+	stream_encoder.h
+
+all: all-am
+
+.SUFFIXES:
+$(srcdir)/Makefile.in:  $(srcdir)/Makefile.am  $(am__configure_deps)
+	@for dep in $?; do \
+	  case '$(am__configure_deps)' in \
+	    *$$dep*) \
+	      ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+	        && { if test -f $@; then exit 0; else break; fi; }; \
+	      exit 1;; \
+	  esac; \
+	done; \
+	echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign src/libFLAC/include/protected/Makefile'; \
+	$(am__cd) $(top_srcdir) && \
+	  $(AUTOMAKE) --foreign src/libFLAC/include/protected/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+	@case '$?' in \
+	  *config.status*) \
+	    cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+	  *) \
+	    echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+	    cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+	esac;
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure:  $(am__configure_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4):  $(am__aclocal_m4_deps)
+	cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+mostlyclean-libtool:
+	-rm -f *.lo
+
+clean-libtool:
+	-rm -rf .libs _libs
+
+ID: $(am__tagged_files)
+	$(am__define_uniq_tagged_files); mkid -fID $$unique
+tags: tags-am
+TAGS: tags
+
+tags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	set x; \
+	here=`pwd`; \
+	$(am__define_uniq_tagged_files); \
+	shift; \
+	if test -z "$(ETAGS_ARGS)$$*$$unique"; then :; else \
+	  test -n "$$unique" || unique=$$empty_fix; \
+	  if test $$# -gt 0; then \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      "$$@" $$unique; \
+	  else \
+	    $(ETAGS) $(ETAGSFLAGS) $(AM_ETAGSFLAGS) $(ETAGS_ARGS) \
+	      $$unique; \
+	  fi; \
+	fi
+ctags: ctags-am
+
+CTAGS: ctags
+ctags-am: $(TAGS_DEPENDENCIES) $(am__tagged_files)
+	$(am__define_uniq_tagged_files); \
+	test -z "$(CTAGS_ARGS)$$unique" \
+	  || $(CTAGS) $(CTAGSFLAGS) $(AM_CTAGSFLAGS) $(CTAGS_ARGS) \
+	     $$unique
+
+GTAGS:
+	here=`$(am__cd) $(top_builddir) && pwd` \
+	  && $(am__cd) $(top_srcdir) \
+	  && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+	list='$(am__tagged_files)'; \
+	case "$(srcdir)" in \
+	  [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+	  *) sdir=$(subdir)/$(srcdir) ;; \
+	esac; \
+	for i in $$list; do \
+	  if test -f "$$i"; then \
+	    echo "$(subdir)/$$i"; \
+	  else \
+	    echo "$$sdir/$$i"; \
+	  fi; \
+	done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+	-rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+distdir: $(BUILT_SOURCES)
+	$(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+	@srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+	list='$(DISTFILES)'; \
+	  dist_files=`for file in $$list; do echo $$file; done | \
+	  sed -e "s|^$$srcdirstrip/||;t" \
+	      -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+	case $$dist_files in \
+	  */*) $(MKDIR_P) `echo "$$dist_files" | \
+			   sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+			   sort -u` ;; \
+	esac; \
+	for file in $$dist_files; do \
+	  if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+	  if test -d $$d/$$file; then \
+	    dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+	    if test -d "$(distdir)/$$file"; then \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+	      cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+	      find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+	    fi; \
+	    cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+	  else \
+	    test -f "$(distdir)/$$file" \
+	    || cp -p $$d/$$file "$(distdir)/$$file" \
+	    || exit 1; \
+	  fi; \
+	done
+check-am: all-am
+check: check-am
+all-am: Makefile $(HEADERS)
+installdirs:
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+	@$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+	if test -z '$(STRIP)'; then \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	      install; \
+	else \
+	  $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+	    install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+	    "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+	fi
+mostlyclean-generic:
+
+clean-generic:
+
+distclean-generic:
+	-test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+	-test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+	@echo "This command is intended for maintainers to use"
+	@echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+	-rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am:
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+	-rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+	clean-libtool cscopelist-am ctags ctags-am distclean \
+	distclean-generic distclean-libtool distclean-tags distdir dvi \
+	dvi-am html html-am info info-am install install-am \
+	install-data install-data-am install-dvi install-dvi-am \
+	install-exec install-exec-am install-html install-html-am \
+	install-info install-info-am install-man install-pdf \
+	install-pdf-am install-ps install-ps-am install-strip \
+	installcheck installcheck-am installdirs maintainer-clean \
+	maintainer-clean-generic mostlyclean mostlyclean-generic \
+	mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+	uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:

extern/flac/src/libFLAC/include/protected/all.h

@@ -0,0 +1,39 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PROTECTED__ALL_H
+#define FLAC__PROTECTED__ALL_H
+
+#include "stream_decoder.h"
+#include "stream_encoder.h"
+
+#endif

extern/flac/src/libFLAC/include/protected/stream_decoder.h

@@ -0,0 +1,60 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PROTECTED__STREAM_DECODER_H
+#define FLAC__PROTECTED__STREAM_DECODER_H
+
+#include "FLAC/stream_decoder.h"
+#if FLAC__HAS_OGG
+#include "private/ogg_decoder_aspect.h"
+#endif
+
+typedef struct FLAC__StreamDecoderProtected {
+	FLAC__StreamDecoderState state;
+	FLAC__StreamDecoderInitStatus initstate;
+	uint32_t channels;
+	FLAC__ChannelAssignment channel_assignment;
+	uint32_t bits_per_sample;
+	uint32_t sample_rate; /* in Hz */
+	uint32_t blocksize; /* in samples (per channel) */
+	FLAC__bool md5_checking; /* if true, generate MD5 signature of decoded data and compare against signature in the STREAMINFO metadata block */
+#if FLAC__HAS_OGG
+	FLAC__OggDecoderAspect ogg_decoder_aspect;
+#endif
+} FLAC__StreamDecoderProtected;
+
+/*
+ * Return the number of input bytes consumed
+ */
+uint32_t FLAC__stream_decoder_get_input_bytes_unconsumed(const FLAC__StreamDecoder *decoder);
+
+#endif

extern/flac/src/libFLAC/include/protected/stream_encoder.h

@@ -0,0 +1,125 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifndef FLAC__PROTECTED__STREAM_ENCODER_H
+#define FLAC__PROTECTED__STREAM_ENCODER_H
+
+#include "FLAC/stream_encoder.h"
+#if FLAC__HAS_OGG
+#include "private/ogg_encoder_aspect.h"
+#endif
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+#include "private/float.h"
+
+#define FLAC__MAX_APODIZATION_FUNCTIONS 32
+
+typedef enum {
+	FLAC__APODIZATION_BARTLETT,
+	FLAC__APODIZATION_BARTLETT_HANN,
+	FLAC__APODIZATION_BLACKMAN,
+	FLAC__APODIZATION_BLACKMAN_HARRIS_4TERM_92DB_SIDELOBE,
+	FLAC__APODIZATION_CONNES,
+	FLAC__APODIZATION_FLATTOP,
+	FLAC__APODIZATION_GAUSS,
+	FLAC__APODIZATION_HAMMING,
+	FLAC__APODIZATION_HANN,
+	FLAC__APODIZATION_KAISER_BESSEL,
+	FLAC__APODIZATION_NUTTALL,
+	FLAC__APODIZATION_RECTANGLE,
+	FLAC__APODIZATION_TRIANGLE,
+	FLAC__APODIZATION_TUKEY,
+	FLAC__APODIZATION_PARTIAL_TUKEY,
+	FLAC__APODIZATION_PUNCHOUT_TUKEY,
+	FLAC__APODIZATION_SUBDIVIDE_TUKEY,
+	FLAC__APODIZATION_WELCH
+} FLAC__ApodizationFunction;
+
+typedef struct {
+	FLAC__ApodizationFunction type;
+	union {
+		struct {
+			FLAC__real stddev;
+		} gauss;
+		struct {
+			FLAC__real p;
+		} tukey;
+		struct {
+			FLAC__real p;
+			FLAC__real start;
+			FLAC__real end;
+		} multiple_tukey;
+		struct {
+			FLAC__real p;
+			FLAC__int32 parts;
+		} subdivide_tukey;
+	} parameters;
+} FLAC__ApodizationSpecification;
+
+#endif // #ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+typedef struct FLAC__StreamEncoderProtected {
+	FLAC__StreamEncoderState state;
+	FLAC__bool verify;
+	FLAC__bool streamable_subset;
+	FLAC__bool do_md5;
+	FLAC__bool do_mid_side_stereo;
+	FLAC__bool loose_mid_side_stereo;
+	uint32_t channels;
+	uint32_t bits_per_sample;
+	uint32_t sample_rate;
+	uint32_t blocksize;
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+	uint32_t num_apodizations;
+	FLAC__ApodizationSpecification apodizations[FLAC__MAX_APODIZATION_FUNCTIONS];
+#endif
+	uint32_t max_lpc_order;
+	uint32_t qlp_coeff_precision;
+	FLAC__bool do_qlp_coeff_prec_search;
+	FLAC__bool do_exhaustive_model_search;
+	FLAC__bool do_escape_coding;
+	uint32_t min_residual_partition_order;
+	uint32_t max_residual_partition_order;
+	uint32_t rice_parameter_search_dist;
+	FLAC__uint64 total_samples_estimate;
+	FLAC__bool limit_min_bitrate;
+	FLAC__StreamMetadata **metadata;
+	uint32_t num_metadata_blocks;
+	uint32_t num_threads;
+	FLAC__uint64 streaminfo_offset, seektable_offset, audio_offset;
+#if FLAC__HAS_OGG
+	FLAC__OggEncoderAspect ogg_encoder_aspect;
+#endif
+} FLAC__StreamEncoderProtected;
+
+#endif

extern/flac/src/libFLAC/libFLAC.m4

@@ -0,0 +1,114 @@
+# Configure paths for libFLAC
+# "Inspired" by ogg.m4
+
+dnl AM_PATH_LIBFLAC([ACTION-IF-FOUND [, ACTION-IF-NOT-FOUND]])
+dnl Test for libFLAC, and define LIBFLAC_CFLAGS, LIBFLAC_LIBS, LIBFLAC_LIBDIR
+dnl
+AC_DEFUN([AM_PATH_LIBFLAC],
+[dnl 
+dnl Get the cflags and libraries
+dnl
+AC_ARG_WITH(libFLAC,[  --with-libFLAC=PFX   Prefix where libFLAC is installed (optional)], libFLAC_prefix="$withval", libFLAC_prefix="")
+AC_ARG_WITH(libFLAC-libraries,[  --with-libFLAC-libraries=DIR   Directory where libFLAC library is installed (optional)], libFLAC_libraries="$withval", libFLAC_libraries="")
+AC_ARG_WITH(libFLAC-includes,[  --with-libFLAC-includes=DIR   Directory where libFLAC header files are installed (optional)], libFLAC_includes="$withval", libFLAC_includes="")
+AC_ARG_ENABLE(libFLACtest, [  --disable-libFLACtest       Do not try to compile and run a test libFLAC program],, enable_libFLACtest=yes)
+
+  if test "x$libFLAC_libraries" != "x" ; then
+    LIBFLAC_LIBS="-L$libFLAC_libraries"
+  elif test "x$libFLAC_prefix" = "xno" || test "x$libFLAC_prefix" = "xyes" ; then
+    LIBFLAC_LIBS=""
+  elif test "x$libFLAC_prefix" != "x" ; then
+    LIBFLAC_LIBS="-L$libFLAC_prefix/lib"
+  elif test "x$prefix" != "xNONE"; then
+    LIBFLAC_LIBS="-L$prefix/lib"
+  fi
+
+  if test "x$libFLAC_prefix" != "xno" ; then
+    LIBFLAC_LIBS="$LIBFLAC_LIBS -lFLAC $OGG_LIBS -lm"
+  fi
+
+  if test "x$libFLAC_includes" != "x" ; then
+    LIBFLAC_CFLAGS="-I$libFLAC_includes"
+  elif test "x$libFLAC_prefix" != "x" ; then
+    LIBFLAC_CFLAGS="-I$libFLAC_prefix/include"
+  elif test "$prefix" != "xNONE"; then
+    LIBFLAC_CFLAGS=""
+  fi
+
+  AC_MSG_CHECKING(for libFLAC)
+  no_libFLAC=""
+
+
+  if test "x$enable_libFLACtest" = "xyes" ; then
+    ac_save_CFLAGS="$CFLAGS"
+    ac_save_CXXFLAGS="$CXXFLAGS"
+    ac_save_LIBS="$LIBS"
+    ac_save_LD_LIBRARY_PATH="$LD_LIBRARY_PATH"
+    CFLAGS="$CFLAGS $LIBFLAC_CFLAGS"
+    CXXFLAGS="$CXXFLAGS $LIBFLAC_CFLAGS"
+    LIBS="$LIBS $LIBFLAC_LIBS"
+    LD_LIBRARY_PATH="$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
+dnl
+dnl Now check if the installed libFLAC is sufficiently new.
+dnl
+      rm -f conf.libFLACtest
+      AC_RUN_IFELSE([AC_LANG_PROGRAM([[
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <FLAC/format.h>
+]],[[
+  system("touch conf.libFLACtest");
+  return 0;
+]])],[],[no_libFLAC=yes],[echo $ac_n "cross compiling; assumed OK... $ac_c"])
+       CFLAGS="$ac_save_CFLAGS"
+       CXXFLAGS="$ac_save_CXXFLAGS"
+       LIBS="$ac_save_LIBS"
+       LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
+  fi
+
+  if test "x$no_libFLAC" = "x" ; then
+     AC_MSG_RESULT(yes)
+     ifelse([$1], , :, [$1])     
+  else
+     AC_MSG_RESULT(no)
+     if test -f conf.libFLACtest ; then
+       :
+     else
+       echo "*** Could not run libFLAC test program, checking why..."
+       CFLAGS="$CFLAGS $LIBFLAC_CFLAGS"
+       CXXFLAGS="$CXXFLAGS $LIBFLAC_CFLAGS"
+       LIBS="$LIBS $LIBFLAC_LIBS"
+       LD_LIBRARY_PATH="$LIBFLAC_LIBDIR:$LD_LIBRARY_PATH"
+       AC_TRY_LINK([
+#include <stdio.h>
+#include <FLAC/format.h>
+],     [ return 0; ],
+       [ echo "*** The test program compiled, but did not run. This usually means"
+       echo "*** that the run-time linker is not finding libFLAC or finding the wrong"
+       echo "*** version of libFLAC. If it is not finding libFLAC, you'll need to set your"
+       echo "*** LD_LIBRARY_PATH environment variable, or edit /etc/ld.so.conf to point"
+       echo "*** to the installed location  Also, make sure you have run ldconfig if that"
+       echo "*** is required on your system"
+       echo "***"
+       echo "*** If you have an old version installed, it is best to remove it, although"
+       echo "*** you may also be able to get things to work by modifying LD_LIBRARY_PATH"],
+       [ echo "*** The test program failed to compile or link. See the file config.log for the"
+       echo "*** exact error that occurred. This usually means libFLAC was incorrectly installed"
+       echo "*** or that you have moved libFLAC since it was installed. In the latter case, you"
+       echo "*** may want to edit the libFLAC-config script: $LIBFLAC_CONFIG" ])
+       CFLAGS="$ac_save_CFLAGS"
+       CXXFLAGS="$ac_save_CXXFLAGS"
+       LIBS="$ac_save_LIBS"
+       LD_LIBRARY_PATH="$ac_save_LD_LIBRARY_PATH"
+     fi
+     LIBFLAC_CFLAGS=""
+     LIBFLAC_LIBDIR=""
+     LIBFLAC_LIBS=""
+     ifelse([$2], , :, [$2])
+  fi
+  AC_SUBST(LIBFLAC_CFLAGS)
+  AC_SUBST(LIBFLAC_LIBDIR)
+  AC_SUBST(LIBFLAC_LIBS)
+  rm -f conf.libFLACtest
+])

extern/flac/src/libFLAC/lpc_intrin_fma.c

@@ -0,0 +1,73 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2022-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if defined FLAC__CPU_X86_64 && FLAC__HAS_X86INTRIN
+#include "private/lpc.h"
+#ifdef FLAC__FMA_SUPPORTED
+
+#include "FLAC/assert.h"
+
+FLAC__SSE_TARGET("fma")
+void FLAC__lpc_compute_autocorrelation_intrin_fma_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 8
+#include "deduplication/lpc_compute_autocorrelation_intrin.c"
+}
+
+FLAC__SSE_TARGET("fma")
+void FLAC__lpc_compute_autocorrelation_intrin_fma_lag_12(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 12
+#include "deduplication/lpc_compute_autocorrelation_intrin.c"
+}
+FLAC__SSE_TARGET("fma")
+void FLAC__lpc_compute_autocorrelation_intrin_fma_lag_16(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 16
+#include "deduplication/lpc_compute_autocorrelation_intrin.c"
+
+}
+
+#endif /* FLAC__FMA_SUPPORTED */
+#endif /* FLAC__CPU_X86_64 && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */

extern/flac/src/libFLAC/lpc_intrin_sse2.c

@@ -0,0 +1,966 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/lpc.h"
+#ifdef FLAC__SSE2_SUPPORTED
+
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+
+#include <emmintrin.h> /* SSE2 */
+
+#define RESIDUAL32_RESULT(xmmN) residual[i] = data[i] - (_mm_cvtsi128_si32(xmmN) >> lp_quantization);
+#define     DATA32_RESULT(xmmN) data[i] = residual[i] + (_mm_cvtsi128_si32(xmmN) >> lp_quantization);
+
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_8(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 8
+#include "deduplication/lpc_compute_autocorrelation_intrin_sse2.c"
+}
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_10(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 10
+#include "deduplication/lpc_compute_autocorrelation_intrin_sse2.c"
+}
+
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_autocorrelation_intrin_sse2_lag_14(const FLAC__real data[], uint32_t data_len, uint32_t lag, double autoc[])
+{
+#undef MAX_LAG
+#define MAX_LAG 14
+#include "deduplication/lpc_compute_autocorrelation_intrin_sse2.c"
+}
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_16_intrin_sse2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+	FLAC__int32 sum;
+	const __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(0xffff & qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+					q10 = _mm_cvtsi32_si128(0xffff & qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+					q11 = _mm_cvtsi32_si128(0xffff & qlp_coeff[11]); q11 = _mm_shuffle_epi32(q11, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q11, _mm_loadu_si128((const __m128i*)(const void*)(data+i-12)));
+						mull = _mm_madd_epi16(q10, _mm_loadu_si128((const __m128i*)(const void*)(data+i-11))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 11 */
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(0xffff & qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+					q10 = _mm_cvtsi32_si128(0xffff & qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q10, _mm_loadu_si128((const __m128i*)(const void*)(data+i-11)));
+						mull = _mm_madd_epi16(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(0xffff & qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10)));
+						mull = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 9 */
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(0xffff & qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9)));
+						mull = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(0xffff & qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8)));
+						mull = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 7 */
+					__m128i q0, q1, q2, q3, q4, q5, q6;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(0xffff & qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7)));
+						mull = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					__m128i q0, q1, q2, q3, q4, q5;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(0xffff & qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6)));
+						mull = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 5 */
+					__m128i q0, q1, q2, q3, q4;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(0xffff & qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5)));
+						mull = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					__m128i q0, q1, q2, q3;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(0xffff & qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4)));
+						mull = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 3 */
+					__m128i q0, q1, q2;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(0xffff & qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3)));
+						mull = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					__m128i q0, q1;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(0xffff & qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_madd_epi16(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2)));
+						mull = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 1 */
+					__m128i q0;
+					q0 = _mm_cvtsi32_si128(0xffff & qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ;
+						summ = _mm_madd_epi16(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1)));
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		for(; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
+				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+}
+
+#if defined FLAC__CPU_IA32 /* unused for x86_64 */
+
+FLAC__SSE_TARGET("sse2")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse2(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	if(order <= 12) {
+		if(order > 8) { /* order == 9, 10, 11, 12 */
+			if(order > 10) { /* order == 11, 12 */
+				if(order == 12) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));  // 0  0  q[1]  q[0]
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));  // 0  0  q[3]  q[2]
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));  // 0  0  q[5]  q[4]
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));  // 0  0  q[7]  q[6]
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));  // 0  0  q[9]  q[8]
+					xmm5 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+10)); // 0  0  q[11] q[10]
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0)); // 0  q[1]  0  q[0]
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0)); // 0  q[3]  0  q[2]
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0)); // 0  q[5]  0  q[4]
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0)); // 0  q[7]  0  q[6]
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0)); // 0  q[9]  0  q[8]
+					xmm5 = _mm_shuffle_epi32(xmm5, _MM_SHUFFLE(3,1,2,0)); // 0  q[11] 0  q[10]
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[11] * data[i-12];
+						//sum += qlp_coeff[10] * data[i-11];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-12));  // 0   0        d[i-11]  d[i-12]
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1)); // 0  d[i-12]   0        d[i-11]
+						xmm7 = _mm_mul_epu32(xmm7, xmm5); /* we use _unsigned_ multiplication and discard high dword of the result values */
+
+						//sum += qlp_coeff[9] * data[i-10];
+						//sum += qlp_coeff[8] * data[i-9];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm4);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm3);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 11 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));
+					xmm5 = _mm_cvtsi32_si128(qlp_coeff[10]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[10] * data[i-11];
+						xmm7 = _mm_cvtsi32_si128(data[i-11]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm5);
+
+						//sum += qlp_coeff[9] * data[i-10];
+						//sum += qlp_coeff[8] * data[i-9];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm4);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm3);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 9, 10 */
+				if(order == 10) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[9] * data[i-10];
+						//sum += qlp_coeff[8] * data[i-9];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm4);
+
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm3);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 9 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_cvtsi32_si128(qlp_coeff[8]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[8] * data[i-9];
+						xmm7 = _mm_cvtsi32_si128(data[i-9]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm4);
+
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm3);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+		}
+		else if(order > 4) { /* order == 5, 6, 7, 8 */
+			if(order > 6) { /* order == 7, 8 */
+				if(order == 8) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[7] * data[i-8];
+						//sum += qlp_coeff[6] * data[i-7];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm3);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 7 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_cvtsi32_si128(qlp_coeff[6]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[6] * data[i-7];
+						xmm7 = _mm_cvtsi32_si128(data[i-7]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm3);
+
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm2);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 5, 6 */
+				if(order == 6) {
+					__m128i xmm0, xmm1, xmm2, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[5] * data[i-6];
+						//sum += qlp_coeff[4] * data[i-5];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm2);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 5 */
+					__m128i xmm0, xmm1, xmm2, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_cvtsi32_si128(qlp_coeff[4]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[4] * data[i-5];
+						xmm7 = _mm_cvtsi32_si128(data[i-5]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm2);
+
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm1);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+		}
+		else { /* order == 1, 2, 3, 4 */
+			if(order > 2) { /* order == 3, 4 */
+				if(order == 4) {
+					__m128i xmm0, xmm1, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[3] * data[i-4];
+						//sum += qlp_coeff[2] * data[i-3];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm1);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 3 */
+					__m128i xmm0, xmm1, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_cvtsi32_si128(qlp_coeff[2]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[2] * data[i-3];
+						xmm7 = _mm_cvtsi32_si128(data[i-3]);
+						xmm7 = _mm_mul_epu32(xmm7, xmm1);
+
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epu32(xmm6, xmm0);
+						xmm7 = _mm_add_epi32(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 1, 2 */
+				if(order == 2) {
+					__m128i xmm0, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[1] * data[i-2];
+						//sum += qlp_coeff[0] * data[i-1];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epu32(xmm7, xmm0);
+
+						xmm7 = _mm_add_epi32(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL32_RESULT(xmm7);
+					}
+				}
+				else { /* order == 1 */
+					for(i = 0; i < (int)data_len; i++)
+						residual[i] = data[i] - ((qlp_coeff[0] * data[i-1]) >> lp_quantization);
+				}
+			}
+		}
+	}
+	else { /* order > 12 */
+		FLAC__int32 sum;
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+}
+
+#endif /* FLAC__CPU_IA32 */
+#endif /* FLAC__SSE2_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */

extern/flac/src/libFLAC/lpc_intrin_sse41.c

@@ -0,0 +1,950 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/cpu.h"
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+#ifndef FLAC__NO_ASM
+#if (defined FLAC__CPU_IA32 || defined FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN
+#include "private/lpc.h"
+#ifdef FLAC__SSE4_1_SUPPORTED
+
+#include "FLAC/assert.h"
+#include "FLAC/format.h"
+
+#include <smmintrin.h> /* SSE4.1 */
+
+#if defined FLAC__CPU_IA32 /* unused for x64 */
+
+#define RESIDUAL64_RESULT(xmmN)  residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srl_epi64(xmmN, cnt))
+#define RESIDUAL64_RESULT1(xmmN) residual[i] = data[i] - _mm_cvtsi128_si32(_mm_srli_epi64(xmmN, lp_quantization))
+
+FLAC__SSE_TARGET("sse4.1")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_wide_intrin_sse41(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+	const __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+	FLAC__ASSERT(lp_quantization <= 32); /* there's no _mm_sra_epi64() so we have to use _mm_srl_epi64() */
+
+	if(order <= 12) {
+		if(order > 8) { /* order == 9, 10, 11, 12 */
+			if(order > 10) { /* order == 11, 12 */
+				if(order == 12) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));  // 0  0  q[1]  q[0]
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));  // 0  0  q[3]  q[2]
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));  // 0  0  q[5]  q[4]
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));  // 0  0  q[7]  q[6]
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));  // 0  0  q[9]  q[8]
+					xmm5 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+10)); // 0  0  q[11] q[10]
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0)); // 0  q[1]  0  q[0]
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0)); // 0  q[3]  0  q[2]
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0)); // 0  q[5]  0  q[4]
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0)); // 0  q[7]  0  q[6]
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0)); // 0  q[9]  0  q[8]
+					xmm5 = _mm_shuffle_epi32(xmm5, _MM_SHUFFLE(3,1,2,0)); // 0  q[11] 0  q[10]
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+						//sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-12));  // 0   0        d[i-11]  d[i-12]
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1)); // 0  d[i-12]   0        d[i-11]
+						xmm7 = _mm_mul_epi32(xmm7, xmm5);
+
+						//sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						//sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm4);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm3);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT1(xmm7);
+					}
+				}
+				else { /* order == 11 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm5, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));
+					xmm5 = _mm_cvtsi32_si128(qlp_coeff[10]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[10] * (FLAC__int64)data[i-11];
+						xmm7 = _mm_cvtsi32_si128(data[i-11]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm5);
+
+						//sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						//sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm4);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm3);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT1(xmm7);
+					}
+				}
+			}
+			else { /* order == 9, 10 */
+				if(order == 10) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+8));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+					xmm4 = _mm_shuffle_epi32(xmm4, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[9] * (FLAC__int64)data[i-10];
+						//sum += qlp_coeff[8] * (FLAC__int64)data[i-9];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-10));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm4);
+
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm3);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 9 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm4, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+					xmm4 = _mm_cvtsi32_si128(qlp_coeff[8]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[8] * (FLAC__int64)data[i-9];
+						xmm7 = _mm_cvtsi32_si128(data[i-9]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm4);
+
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm3);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+		}
+		else if(order > 4) { /* order == 5, 6, 7, 8 */
+			if(order > 6) { /* order == 7, 8 */
+				if(order == 8) {
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+6));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+					xmm3 = _mm_shuffle_epi32(xmm3, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[7] * (FLAC__int64)data[i-8];
+						//sum += qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-8));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm3);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 7 */
+					__m128i xmm0, xmm1, xmm2, xmm3, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+					xmm3 = _mm_cvtsi32_si128(qlp_coeff[6]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[6] * (FLAC__int64)data[i-7];
+						xmm7 = _mm_cvtsi32_si128(data[i-7]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm3);
+
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm2);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 5, 6 */
+				if(order == 6) {
+					__m128i xmm0, xmm1, xmm2, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+4));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+					xmm2 = _mm_shuffle_epi32(xmm2, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[5] * (FLAC__int64)data[i-6];
+						//sum += qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-6));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm2);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 5 */
+					__m128i xmm0, xmm1, xmm2, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+					xmm2 = _mm_cvtsi32_si128(qlp_coeff[4]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[4] * (FLAC__int64)data[i-5];
+						xmm7 = _mm_cvtsi32_si128(data[i-5]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm2);
+
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm1);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+		}
+		else { /* order == 1, 2, 3, 4 */
+			if(order > 2) { /* order == 3, 4 */
+				if(order == 4) {
+					__m128i xmm0, xmm1, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+2));
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+					xmm1 = _mm_shuffle_epi32(xmm1, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[3] * (FLAC__int64)data[i-4];
+						//sum += qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-4));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm1);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 3 */
+					__m128i xmm0, xmm1, xmm6, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm1 = _mm_cvtsi32_si128(qlp_coeff[2]);
+
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum  = qlp_coeff[2] * (FLAC__int64)data[i-3];
+						xmm7 = _mm_cvtsi32_si128(data[i-3]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm1);
+
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm6 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm6 = _mm_shuffle_epi32(xmm6, _MM_SHUFFLE(2,0,3,1));
+						xmm6 = _mm_mul_epi32(xmm6, xmm0);
+						xmm7 = _mm_add_epi64(xmm7, xmm6);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+			else { /* order == 1, 2 */
+				if(order == 2) {
+					__m128i xmm0, xmm7;
+					xmm0 = _mm_loadl_epi64((const __m128i*)(const void*)(qlp_coeff+0));
+					xmm0 = _mm_shuffle_epi32(xmm0, _MM_SHUFFLE(3,1,2,0));
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = 0;
+						//sum += qlp_coeff[1] * (FLAC__int64)data[i-2];
+						//sum += qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm7 = _mm_loadl_epi64((const __m128i*)(const void*)(data+i-2));
+						xmm7 = _mm_shuffle_epi32(xmm7, _MM_SHUFFLE(2,0,3,1));
+						xmm7 = _mm_mul_epi32(xmm7, xmm0);
+
+						xmm7 = _mm_add_epi64(xmm7, _mm_srli_si128(xmm7, 8));
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+				else { /* order == 1 */
+					__m128i xmm0, xmm7;
+					xmm0 = _mm_cvtsi32_si128(qlp_coeff[0]);
+
+					for(i = 0; i < (int)data_len; i++) {
+						//sum = qlp_coeff[0] * (FLAC__int64)data[i-1];
+						xmm7 = _mm_cvtsi32_si128(data[i-1]);
+						xmm7 = _mm_mul_epi32(xmm7, xmm0);
+						RESIDUAL64_RESULT(xmm7);
+					}
+				}
+			}
+		}
+	}
+	else { /* order > 12 */
+		FLAC__int64 sum;
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * (FLAC__int64)data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * (FLAC__int64)data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * (FLAC__int64)data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * (FLAC__int64)data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * (FLAC__int64)data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * (FLAC__int64)data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * (FLAC__int64)data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * (FLAC__int64)data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * (FLAC__int64)data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * (FLAC__int64)data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * (FLAC__int64)data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * (FLAC__int64)data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * (FLAC__int64)data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * (FLAC__int64)data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * (FLAC__int64)data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * (FLAC__int64)data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * (FLAC__int64)data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * (FLAC__int64)data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * (FLAC__int64)data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * (FLAC__int64)data[i-13];
+				         sum += qlp_coeff[11] * (FLAC__int64)data[i-12];
+				         sum += qlp_coeff[10] * (FLAC__int64)data[i-11];
+				         sum += qlp_coeff[ 9] * (FLAC__int64)data[i-10];
+				         sum += qlp_coeff[ 8] * (FLAC__int64)data[i- 9];
+				         sum += qlp_coeff[ 7] * (FLAC__int64)data[i- 8];
+				         sum += qlp_coeff[ 6] * (FLAC__int64)data[i- 7];
+				         sum += qlp_coeff[ 5] * (FLAC__int64)data[i- 6];
+				         sum += qlp_coeff[ 4] * (FLAC__int64)data[i- 5];
+				         sum += qlp_coeff[ 3] * (FLAC__int64)data[i- 4];
+				         sum += qlp_coeff[ 2] * (FLAC__int64)data[i- 3];
+				         sum += qlp_coeff[ 1] * (FLAC__int64)data[i- 2];
+				         sum += qlp_coeff[ 0] * (FLAC__int64)data[i- 1];
+			}
+			residual[i] = data[i] - (FLAC__int32)(sum >> lp_quantization);
+		}
+	}
+}
+
+#endif /* defined FLAC__CPU_IA32 */
+
+FLAC__SSE_TARGET("sse4.1")
+void FLAC__lpc_compute_residual_from_qlp_coefficients_intrin_sse41(const FLAC__int32 *data, uint32_t data_len, const FLAC__int32 qlp_coeff[], uint32_t order, int lp_quantization, FLAC__int32 residual[])
+{
+	int i;
+	FLAC__int32 sum;
+	const __m128i cnt = _mm_cvtsi32_si128(lp_quantization);
+
+	FLAC__ASSERT(order > 0);
+	FLAC__ASSERT(order <= 32);
+
+	if(order <= 12) {
+		if(order > 8) {
+			if(order > 10) {
+				if(order == 12) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10, q11;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+					q10 = _mm_cvtsi32_si128(qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+					q11 = _mm_cvtsi32_si128(qlp_coeff[11]); q11 = _mm_shuffle_epi32(q11, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q11, _mm_loadu_si128((const __m128i*)(const void*)(data+i-12)));
+						mull = _mm_mullo_epi32(q10, _mm_loadu_si128((const __m128i*)(const void*)(data+i-11))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 11 */
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9, q10;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+					q10 = _mm_cvtsi32_si128(qlp_coeff[10]); q10 = _mm_shuffle_epi32(q10, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q10, _mm_loadu_si128((const __m128i*)(const void*)(data+i-11)));
+						mull = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 10) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8, q9;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+					q9 = _mm_cvtsi32_si128(qlp_coeff[9]); q9 = _mm_shuffle_epi32(q9, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q9, _mm_loadu_si128((const __m128i*)(const void*)(data+i-10)));
+						mull = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 9 */
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7, q8;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+					q8 = _mm_cvtsi32_si128(qlp_coeff[8]); q8 = _mm_shuffle_epi32(q8, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q8, _mm_loadu_si128((const __m128i*)(const void*)(data+i-9)));
+						mull = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else if(order > 4) {
+			if(order > 6) {
+				if(order == 8) {
+					__m128i q0, q1, q2, q3, q4, q5, q6, q7;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+					q7 = _mm_cvtsi32_si128(qlp_coeff[7]); q7 = _mm_shuffle_epi32(q7, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q7, _mm_loadu_si128((const __m128i*)(const void*)(data+i-8)));
+						mull = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 7 */
+					__m128i q0, q1, q2, q3, q4, q5, q6;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+					q6 = _mm_cvtsi32_si128(qlp_coeff[6]); q6 = _mm_shuffle_epi32(q6, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q6, _mm_loadu_si128((const __m128i*)(const void*)(data+i-7)));
+						mull = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 6) {
+					__m128i q0, q1, q2, q3, q4, q5;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+					q5 = _mm_cvtsi32_si128(qlp_coeff[5]); q5 = _mm_shuffle_epi32(q5, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q5, _mm_loadu_si128((const __m128i*)(const void*)(data+i-6)));
+						mull = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 5 */
+					__m128i q0, q1, q2, q3, q4;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+					q4 = _mm_cvtsi32_si128(qlp_coeff[4]); q4 = _mm_shuffle_epi32(q4, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q4, _mm_loadu_si128((const __m128i*)(const void*)(data+i-5)));
+						mull = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		else {
+			if(order > 2) {
+				if(order == 4) {
+					__m128i q0, q1, q2, q3;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+					q3 = _mm_cvtsi32_si128(qlp_coeff[3]); q3 = _mm_shuffle_epi32(q3, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q3, _mm_loadu_si128((const __m128i*)(const void*)(data+i-4)));
+						mull = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 3 */
+					__m128i q0, q1, q2;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+					q2 = _mm_cvtsi32_si128(qlp_coeff[2]); q2 = _mm_shuffle_epi32(q2, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q2, _mm_loadu_si128((const __m128i*)(const void*)(data+i-3)));
+						mull = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2))); summ = _mm_add_epi32(summ, mull);
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+			else {
+				if(order == 2) {
+					__m128i q0, q1;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+					q1 = _mm_cvtsi32_si128(qlp_coeff[1]); q1 = _mm_shuffle_epi32(q1, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ, mull;
+						summ = _mm_mullo_epi32(q1, _mm_loadu_si128((const __m128i*)(const void*)(data+i-2)));
+						mull = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1))); summ = _mm_add_epi32(summ, mull);
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+				else { /* order == 1 */
+					__m128i q0;
+					q0 = _mm_cvtsi32_si128(qlp_coeff[0]); q0 = _mm_shuffle_epi32(q0, _MM_SHUFFLE(0,0,0,0));
+
+					for(i = 0; i < (int)data_len-3; i+=4) {
+						__m128i summ;
+						summ = _mm_mullo_epi32(q0, _mm_loadu_si128((const __m128i*)(const void*)(data+i-1)));
+						summ = _mm_sra_epi32(summ, cnt);
+						_mm_storeu_si128((__m128i*)(void*)(residual+i), _mm_sub_epi32(_mm_loadu_si128((const __m128i*)(const void*)(data+i)), summ));
+					}
+				}
+			}
+		}
+		for(; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 12: sum += qlp_coeff[11] * data[i-12]; /* Falls through. */
+				case 11: sum += qlp_coeff[10] * data[i-11]; /* Falls through. */
+				case 10: sum += qlp_coeff[ 9] * data[i-10]; /* Falls through. */
+				case 9:  sum += qlp_coeff[ 8] * data[i- 9]; /* Falls through. */
+				case 8:  sum += qlp_coeff[ 7] * data[i- 8]; /* Falls through. */
+				case 7:  sum += qlp_coeff[ 6] * data[i- 7]; /* Falls through. */
+				case 6:  sum += qlp_coeff[ 5] * data[i- 6]; /* Falls through. */
+				case 5:  sum += qlp_coeff[ 4] * data[i- 5]; /* Falls through. */
+				case 4:  sum += qlp_coeff[ 3] * data[i- 4]; /* Falls through. */
+				case 3:  sum += qlp_coeff[ 2] * data[i- 3]; /* Falls through. */
+				case 2:  sum += qlp_coeff[ 1] * data[i- 2]; /* Falls through. */
+				case 1:  sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+	else { /* order > 12 */
+		for(i = 0; i < (int)data_len; i++) {
+			sum = 0;
+			switch(order) {
+				case 32: sum += qlp_coeff[31] * data[i-32]; /* Falls through. */
+				case 31: sum += qlp_coeff[30] * data[i-31]; /* Falls through. */
+				case 30: sum += qlp_coeff[29] * data[i-30]; /* Falls through. */
+				case 29: sum += qlp_coeff[28] * data[i-29]; /* Falls through. */
+				case 28: sum += qlp_coeff[27] * data[i-28]; /* Falls through. */
+				case 27: sum += qlp_coeff[26] * data[i-27]; /* Falls through. */
+				case 26: sum += qlp_coeff[25] * data[i-26]; /* Falls through. */
+				case 25: sum += qlp_coeff[24] * data[i-25]; /* Falls through. */
+				case 24: sum += qlp_coeff[23] * data[i-24]; /* Falls through. */
+				case 23: sum += qlp_coeff[22] * data[i-23]; /* Falls through. */
+				case 22: sum += qlp_coeff[21] * data[i-22]; /* Falls through. */
+				case 21: sum += qlp_coeff[20] * data[i-21]; /* Falls through. */
+				case 20: sum += qlp_coeff[19] * data[i-20]; /* Falls through. */
+				case 19: sum += qlp_coeff[18] * data[i-19]; /* Falls through. */
+				case 18: sum += qlp_coeff[17] * data[i-18]; /* Falls through. */
+				case 17: sum += qlp_coeff[16] * data[i-17]; /* Falls through. */
+				case 16: sum += qlp_coeff[15] * data[i-16]; /* Falls through. */
+				case 15: sum += qlp_coeff[14] * data[i-15]; /* Falls through. */
+				case 14: sum += qlp_coeff[13] * data[i-14]; /* Falls through. */
+				case 13: sum += qlp_coeff[12] * data[i-13];
+				         sum += qlp_coeff[11] * data[i-12];
+				         sum += qlp_coeff[10] * data[i-11];
+				         sum += qlp_coeff[ 9] * data[i-10];
+				         sum += qlp_coeff[ 8] * data[i- 9];
+				         sum += qlp_coeff[ 7] * data[i- 8];
+				         sum += qlp_coeff[ 6] * data[i- 7];
+				         sum += qlp_coeff[ 5] * data[i- 6];
+				         sum += qlp_coeff[ 4] * data[i- 5];
+				         sum += qlp_coeff[ 3] * data[i- 4];
+				         sum += qlp_coeff[ 2] * data[i- 3];
+				         sum += qlp_coeff[ 1] * data[i- 2];
+				         sum += qlp_coeff[ 0] * data[i- 1];
+			}
+			residual[i] = data[i] - (sum >> lp_quantization);
+		}
+	}
+}
+
+#endif /* FLAC__SSE4_1_SUPPORTED */
+#endif /* (FLAC__CPU_IA32 || FLAC__CPU_X86_64) && FLAC__HAS_X86INTRIN */
+#endif /* FLAC__NO_ASM */
+#endif /* FLAC__INTEGER_ONLY_LIBRARY */

extern/flac/src/libFLAC/md5.c

@@ -0,0 +1,522 @@
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdlib.h>		/* for malloc() */
+#include <string.h>		/* for memcpy() */
+
+#include "private/md5.h"
+#include "share/alloc.h"
+#include "share/compat.h"
+#include "share/endswap.h"
+
+/*
+ * This code implements the MD5 message-digest algorithm.
+ * The algorithm is due to Ron Rivest.  This code was
+ * written by Colin Plumb in 1993, no copyright is claimed.
+ * This code is in the public domain; do with it what you wish.
+ *
+ * Equivalent code is available from RSA Data Security, Inc.
+ * This code has been tested against that, and is equivalent,
+ * except that you don't need to include two pages of legalese
+ * with every copy.
+ *
+ * To compute the message digest of a chunk of bytes, declare an
+ * MD5Context structure, pass it to MD5Init, call MD5Update as
+ * needed on buffers full of bytes, and then call MD5Final, which
+ * will fill a supplied 16-byte array with the digest.
+ *
+ * Changed so as no longer to depend on Colin Plumb's `usual.h' header
+ * definitions; now uses stuff from dpkg's config.h.
+ *  - Ian Jackson <ijackson@nyx.cs.du.edu>.
+ * Still in the public domain.
+ *
+ * Josh Coalson: made some changes to integrate with libFLAC.
+ * Still in the public domain.
+ */
+
+/* The four core functions - F1 is optimized somewhat */
+
+/* #define F1(x, y, z) (x & y | ~x & z) */
+#define F1(x, y, z) (z ^ (x & (y ^ z)))
+#define F2(x, y, z) F1(z, x, y)
+#define F3(x, y, z) (x ^ y ^ z)
+#define F4(x, y, z) (y ^ (x | ~z))
+
+/* This is the central step in the MD5 algorithm. */
+#define MD5STEP(f,w,x,y,z,in,s) \
+	 (w += f(x,y,z) + in, w = (w<<s | w>>(32-s)) + x)
+
+/*
+ * The core of the MD5 algorithm, this alters an existing MD5 hash to
+ * reflect the addition of 16 longwords of new data.  MD5Update blocks
+ * the data and converts bytes into longwords for this routine.
+ */
+
+#ifdef FUZZING_BUILD_MODE_UNSAFE_FOR_PRODUCTION
+/* This tremendously speeds up undefined behaviour fuzzing */
+__attribute__((no_sanitize("unsigned-integer-overflow")))
+#endif
+static void FLAC__MD5Transform(FLAC__uint32 buf[4], FLAC__uint32 const in[16])
+{
+	register FLAC__uint32 a, b, c, d;
+
+	a = buf[0];
+	b = buf[1];
+	c = buf[2];
+	d = buf[3];
+
+	MD5STEP(F1, a, b, c, d, in[0] + 0xd76aa478, 7);
+	MD5STEP(F1, d, a, b, c, in[1] + 0xe8c7b756, 12);
+	MD5STEP(F1, c, d, a, b, in[2] + 0x242070db, 17);
+	MD5STEP(F1, b, c, d, a, in[3] + 0xc1bdceee, 22);
+	MD5STEP(F1, a, b, c, d, in[4] + 0xf57c0faf, 7);
+	MD5STEP(F1, d, a, b, c, in[5] + 0x4787c62a, 12);
+	MD5STEP(F1, c, d, a, b, in[6] + 0xa8304613, 17);
+	MD5STEP(F1, b, c, d, a, in[7] + 0xfd469501, 22);
+	MD5STEP(F1, a, b, c, d, in[8] + 0x698098d8, 7);
+	MD5STEP(F1, d, a, b, c, in[9] + 0x8b44f7af, 12);
+	MD5STEP(F1, c, d, a, b, in[10] + 0xffff5bb1, 17);
+	MD5STEP(F1, b, c, d, a, in[11] + 0x895cd7be, 22);
+	MD5STEP(F1, a, b, c, d, in[12] + 0x6b901122, 7);
+	MD5STEP(F1, d, a, b, c, in[13] + 0xfd987193, 12);
+	MD5STEP(F1, c, d, a, b, in[14] + 0xa679438e, 17);
+	MD5STEP(F1, b, c, d, a, in[15] + 0x49b40821, 22);
+
+	MD5STEP(F2, a, b, c, d, in[1] + 0xf61e2562, 5);
+	MD5STEP(F2, d, a, b, c, in[6] + 0xc040b340, 9);
+	MD5STEP(F2, c, d, a, b, in[11] + 0x265e5a51, 14);
+	MD5STEP(F2, b, c, d, a, in[0] + 0xe9b6c7aa, 20);
+	MD5STEP(F2, a, b, c, d, in[5] + 0xd62f105d, 5);
+	MD5STEP(F2, d, a, b, c, in[10] + 0x02441453, 9);
+	MD5STEP(F2, c, d, a, b, in[15] + 0xd8a1e681, 14);
+	MD5STEP(F2, b, c, d, a, in[4] + 0xe7d3fbc8, 20);
+	MD5STEP(F2, a, b, c, d, in[9] + 0x21e1cde6, 5);
+	MD5STEP(F2, d, a, b, c, in[14] + 0xc33707d6, 9);
+	MD5STEP(F2, c, d, a, b, in[3] + 0xf4d50d87, 14);
+	MD5STEP(F2, b, c, d, a, in[8] + 0x455a14ed, 20);
+	MD5STEP(F2, a, b, c, d, in[13] + 0xa9e3e905, 5);
+	MD5STEP(F2, d, a, b, c, in[2] + 0xfcefa3f8, 9);
+	MD5STEP(F2, c, d, a, b, in[7] + 0x676f02d9, 14);
+	MD5STEP(F2, b, c, d, a, in[12] + 0x8d2a4c8a, 20);
+
+	MD5STEP(F3, a, b, c, d, in[5] + 0xfffa3942, 4);
+	MD5STEP(F3, d, a, b, c, in[8] + 0x8771f681, 11);
+	MD5STEP(F3, c, d, a, b, in[11] + 0x6d9d6122, 16);
+	MD5STEP(F3, b, c, d, a, in[14] + 0xfde5380c, 23);
+	MD5STEP(F3, a, b, c, d, in[1] + 0xa4beea44, 4);
+	MD5STEP(F3, d, a, b, c, in[4] + 0x4bdecfa9, 11);
+	MD5STEP(F3, c, d, a, b, in[7] + 0xf6bb4b60, 16);
+	MD5STEP(F3, b, c, d, a, in[10] + 0xbebfbc70, 23);
+	MD5STEP(F3, a, b, c, d, in[13] + 0x289b7ec6, 4);
+	MD5STEP(F3, d, a, b, c, in[0] + 0xeaa127fa, 11);
+	MD5STEP(F3, c, d, a, b, in[3] + 0xd4ef3085, 16);
+	MD5STEP(F3, b, c, d, a, in[6] + 0x04881d05, 23);
+	MD5STEP(F3, a, b, c, d, in[9] + 0xd9d4d039, 4);
+	MD5STEP(F3, d, a, b, c, in[12] + 0xe6db99e5, 11);
+	MD5STEP(F3, c, d, a, b, in[15] + 0x1fa27cf8, 16);
+	MD5STEP(F3, b, c, d, a, in[2] + 0xc4ac5665, 23);
+
+	MD5STEP(F4, a, b, c, d, in[0] + 0xf4292244, 6);
+	MD5STEP(F4, d, a, b, c, in[7] + 0x432aff97, 10);
+	MD5STEP(F4, c, d, a, b, in[14] + 0xab9423a7, 15);
+	MD5STEP(F4, b, c, d, a, in[5] + 0xfc93a039, 21);
+	MD5STEP(F4, a, b, c, d, in[12] + 0x655b59c3, 6);
+	MD5STEP(F4, d, a, b, c, in[3] + 0x8f0ccc92, 10);
+	MD5STEP(F4, c, d, a, b, in[10] + 0xffeff47d, 15);
+	MD5STEP(F4, b, c, d, a, in[1] + 0x85845dd1, 21);
+	MD5STEP(F4, a, b, c, d, in[8] + 0x6fa87e4f, 6);
+	MD5STEP(F4, d, a, b, c, in[15] + 0xfe2ce6e0, 10);
+	MD5STEP(F4, c, d, a, b, in[6] + 0xa3014314, 15);
+	MD5STEP(F4, b, c, d, a, in[13] + 0x4e0811a1, 21);
+	MD5STEP(F4, a, b, c, d, in[4] + 0xf7537e82, 6);
+	MD5STEP(F4, d, a, b, c, in[11] + 0xbd3af235, 10);
+	MD5STEP(F4, c, d, a, b, in[2] + 0x2ad7d2bb, 15);
+	MD5STEP(F4, b, c, d, a, in[9] + 0xeb86d391, 21);
+
+	buf[0] += a;
+	buf[1] += b;
+	buf[2] += c;
+	buf[3] += d;
+}
+
+#if WORDS_BIGENDIAN
+//@@@@@@ OPT: use bswap/intrinsics
+static void byteSwap(FLAC__uint32 *buf, uint32_t words)
+{
+	register FLAC__uint32 x;
+	do {
+		x = *buf;
+		x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff);
+		*buf++ = (x >> 16) | (x << 16);
+	} while (--words);
+}
+static void byteSwapX16(FLAC__uint32 *buf)
+{
+	register FLAC__uint32 x;
+
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf++ = (x >> 16) | (x << 16);
+	x = *buf; x = ((x << 8) & 0xff00ff00) | ((x >> 8) & 0x00ff00ff); *buf   = (x >> 16) | (x << 16);
+}
+#else
+#define byteSwap(buf, words)
+#define byteSwapX16(buf)
+#endif
+
+/*
+ * Update context to reflect the concatenation of another buffer full
+ * of bytes.
+ */
+static void FLAC__MD5Update(FLAC__MD5Context *ctx, FLAC__byte const *buf, uint32_t len)
+{
+	FLAC__uint32 t;
+
+	/* Update byte count */
+
+	t = ctx->bytes[0];
+	if ((ctx->bytes[0] = t + len) < t)
+		ctx->bytes[1]++;	/* Carry from low to high */
+
+	t = 64 - (t & 0x3f);	/* Space available in ctx->in (at least 1) */
+	if (t > len) {
+		memcpy((FLAC__byte *)ctx->in + 64 - t, buf, len);
+		return;
+	}
+	/* First chunk is an odd size */
+	memcpy((FLAC__byte *)ctx->in + 64 - t, buf, t);
+	byteSwapX16(ctx->in);
+	FLAC__MD5Transform(ctx->buf, ctx->in);
+	buf += t;
+	len -= t;
+
+	/* Process data in 64-byte chunks */
+	while (len >= 64) {
+		memcpy(ctx->in, buf, 64);
+		byteSwapX16(ctx->in);
+		FLAC__MD5Transform(ctx->buf, ctx->in);
+		buf += 64;
+		len -= 64;
+	}
+
+	/* Handle any remaining bytes of data. */
+	memcpy(ctx->in, buf, len);
+}
+
+/*
+ * Start MD5 accumulation.  Set bit count to 0 and buffer to mysterious
+ * initialization constants.
+ */
+void FLAC__MD5Init(FLAC__MD5Context *ctx)
+{
+	ctx->buf[0] = 0x67452301;
+	ctx->buf[1] = 0xefcdab89;
+	ctx->buf[2] = 0x98badcfe;
+	ctx->buf[3] = 0x10325476;
+
+	ctx->bytes[0] = 0;
+	ctx->bytes[1] = 0;
+
+	ctx->internal_buf.p8 = 0;
+	ctx->capacity = 0;
+}
+
+/*
+ * Final wrapup - pad to 64-byte boundary with the bit pattern
+ * 1 0* (64-bit count of bits processed, MSB-first)
+ */
+void FLAC__MD5Final(FLAC__byte digest[16], FLAC__MD5Context *ctx)
+{
+	int count = ctx->bytes[0] & 0x3f;	/* Number of bytes in ctx->in */
+	FLAC__byte *p = (FLAC__byte *)ctx->in + count;
+
+	/* Set the first char of padding to 0x80.  There is always room. */
+	*p++ = 0x80;
+
+	/* Bytes of padding needed to make 56 bytes (-8..55) */
+	count = 56 - 1 - count;
+
+	if (count < 0) {	/* Padding forces an extra block */
+		memset(p, 0, count + 8);
+		byteSwapX16(ctx->in);
+		FLAC__MD5Transform(ctx->buf, ctx->in);
+		p = (FLAC__byte *)ctx->in;
+		count = 56;
+	}
+	memset(p, 0, count);
+	byteSwap(ctx->in, 14);
+
+	/* Append length in bits and transform */
+	ctx->in[14] = ctx->bytes[0] << 3;
+	ctx->in[15] = ctx->bytes[1] << 3 | ctx->bytes[0] >> 29;
+	FLAC__MD5Transform(ctx->buf, ctx->in);
+
+	byteSwap(ctx->buf, 4);
+	memcpy(digest, ctx->buf, 16);
+	if (0 != ctx->internal_buf.p8) {
+		free(ctx->internal_buf.p8);
+		ctx->internal_buf.p8 = 0;
+		ctx->capacity = 0;
+	}
+	memset(ctx, 0, sizeof(*ctx));	/* In case it's sensitive */
+}
+
+/*
+ * Convert the incoming audio signal to a byte stream
+ */
+static void format_input_(FLAC__multibyte *mbuf, const FLAC__int32 * const signal[], uint32_t channels, uint32_t samples, uint32_t bytes_per_sample)
+{
+	FLAC__byte *buf_ = mbuf->p8;
+	FLAC__int16 *buf16 = mbuf->p16;
+	FLAC__int32 *buf32 = mbuf->p32;
+	FLAC__int32 a_word;
+	uint32_t channel, sample;
+
+	/* Storage in the output buffer, buf, is little endian. */
+
+#define BYTES_CHANNEL_SELECTOR(bytes, channels)   (bytes * 100 + channels)
+
+	/* First do the most commonly used combinations. */
+	switch (BYTES_CHANNEL_SELECTOR (bytes_per_sample, channels)) {
+		/* One byte per sample. */
+		case (BYTES_CHANNEL_SELECTOR (1, 1)):
+			for (sample = 0; sample < samples; sample++)
+				*buf_++ = signal[0][sample];
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (1, 2)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf_++ = signal[0][sample];
+				*buf_++ = signal[1][sample];
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (1, 4)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf_++ = signal[0][sample];
+				*buf_++ = signal[1][sample];
+				*buf_++ = signal[2][sample];
+				*buf_++ = signal[3][sample];
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (1, 6)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf_++ = signal[0][sample];
+				*buf_++ = signal[1][sample];
+				*buf_++ = signal[2][sample];
+				*buf_++ = signal[3][sample];
+				*buf_++ = signal[4][sample];
+				*buf_++ = signal[5][sample];
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (1, 8)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf_++ = signal[0][sample];
+				*buf_++ = signal[1][sample];
+				*buf_++ = signal[2][sample];
+				*buf_++ = signal[3][sample];
+				*buf_++ = signal[4][sample];
+				*buf_++ = signal[5][sample];
+				*buf_++ = signal[6][sample];
+				*buf_++ = signal[7][sample];
+			}
+			return;
+
+		/* Two bytes per sample. */
+		case (BYTES_CHANNEL_SELECTOR (2, 1)):
+			for (sample = 0; sample < samples; sample++)
+				*buf16++ = H2LE_16(signal[0][sample]);
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (2, 2)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf16++ = H2LE_16(signal[0][sample]);
+				*buf16++ = H2LE_16(signal[1][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (2, 4)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf16++ = H2LE_16(signal[0][sample]);
+				*buf16++ = H2LE_16(signal[1][sample]);
+				*buf16++ = H2LE_16(signal[2][sample]);
+				*buf16++ = H2LE_16(signal[3][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (2, 6)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf16++ = H2LE_16(signal[0][sample]);
+				*buf16++ = H2LE_16(signal[1][sample]);
+				*buf16++ = H2LE_16(signal[2][sample]);
+				*buf16++ = H2LE_16(signal[3][sample]);
+				*buf16++ = H2LE_16(signal[4][sample]);
+				*buf16++ = H2LE_16(signal[5][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (2, 8)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf16++ = H2LE_16(signal[0][sample]);
+				*buf16++ = H2LE_16(signal[1][sample]);
+				*buf16++ = H2LE_16(signal[2][sample]);
+				*buf16++ = H2LE_16(signal[3][sample]);
+				*buf16++ = H2LE_16(signal[4][sample]);
+				*buf16++ = H2LE_16(signal[5][sample]);
+				*buf16++ = H2LE_16(signal[6][sample]);
+				*buf16++ = H2LE_16(signal[7][sample]);
+			}
+			return;
+
+		/* Three bytes per sample. */
+		case (BYTES_CHANNEL_SELECTOR (3, 1)):
+			for (sample = 0; sample < samples; sample++) {
+				a_word = signal[0][sample];
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word;
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (3, 2)):
+			for (sample = 0; sample < samples; sample++) {
+				a_word = signal[0][sample];
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word;
+				a_word = signal[1][sample];
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+				*buf_++ = (FLAC__byte)a_word;
+			}
+			return;
+
+		/* Four bytes per sample. */
+		case (BYTES_CHANNEL_SELECTOR (4, 1)):
+			for (sample = 0; sample < samples; sample++)
+				*buf32++ = H2LE_32(signal[0][sample]);
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (4, 2)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf32++ = H2LE_32(signal[0][sample]);
+				*buf32++ = H2LE_32(signal[1][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (4, 4)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf32++ = H2LE_32(signal[0][sample]);
+				*buf32++ = H2LE_32(signal[1][sample]);
+				*buf32++ = H2LE_32(signal[2][sample]);
+				*buf32++ = H2LE_32(signal[3][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (4, 6)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf32++ = H2LE_32(signal[0][sample]);
+				*buf32++ = H2LE_32(signal[1][sample]);
+				*buf32++ = H2LE_32(signal[2][sample]);
+				*buf32++ = H2LE_32(signal[3][sample]);
+				*buf32++ = H2LE_32(signal[4][sample]);
+				*buf32++ = H2LE_32(signal[5][sample]);
+			}
+			return;
+
+		case (BYTES_CHANNEL_SELECTOR (4, 8)):
+			for (sample = 0; sample < samples; sample++) {
+				*buf32++ = H2LE_32(signal[0][sample]);
+				*buf32++ = H2LE_32(signal[1][sample]);
+				*buf32++ = H2LE_32(signal[2][sample]);
+				*buf32++ = H2LE_32(signal[3][sample]);
+				*buf32++ = H2LE_32(signal[4][sample]);
+				*buf32++ = H2LE_32(signal[5][sample]);
+				*buf32++ = H2LE_32(signal[6][sample]);
+				*buf32++ = H2LE_32(signal[7][sample]);
+			}
+			return;
+
+		default:
+			break;
+	}
+
+	/* General version. */
+	switch (bytes_per_sample) {
+		case 1:
+			for (sample = 0; sample < samples; sample++)
+				for (channel = 0; channel < channels; channel++)
+					*buf_++ = signal[channel][sample];
+			return;
+
+		case 2:
+			for (sample = 0; sample < samples; sample++)
+				for (channel = 0; channel < channels; channel++)
+					*buf16++ = H2LE_16(signal[channel][sample]);
+			return;
+
+		case 3:
+			for (sample = 0; sample < samples; sample++)
+				for (channel = 0; channel < channels; channel++) {
+					a_word = signal[channel][sample];
+					*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+					*buf_++ = (FLAC__byte)a_word; a_word >>= 8;
+					*buf_++ = (FLAC__byte)a_word;
+				}
+			return;
+
+		case 4:
+			for (sample = 0; sample < samples; sample++)
+				for (channel = 0; channel < channels; channel++)
+					*buf32++ = H2LE_32(signal[channel][sample]);
+			return;
+
+		default:
+			break;
+	}
+}
+
+/*
+ * Convert the incoming audio signal to a byte stream and FLAC__MD5Update it.
+ */
+FLAC__bool FLAC__MD5Accumulate(FLAC__MD5Context *ctx, const FLAC__int32 * const signal[], uint32_t channels, uint32_t samples, uint32_t bytes_per_sample)
+{
+	const size_t bytes_needed = (size_t)channels * (size_t)samples * (size_t)bytes_per_sample;
+
+	/* overflow check */
+	if ((size_t)channels > SIZE_MAX / (size_t)bytes_per_sample)
+		return false;
+	if ((size_t)channels * (size_t)bytes_per_sample > SIZE_MAX / (size_t)samples)
+		return false;
+
+	if (ctx->capacity < bytes_needed) {
+		if (0 == (ctx->internal_buf.p8 = safe_realloc_(ctx->internal_buf.p8, bytes_needed))) {
+			if (0 == (ctx->internal_buf.p8 = safe_malloc_(bytes_needed))) {
+				ctx->capacity = 0;
+				return false;
+			}
+		}
+		ctx->capacity = bytes_needed;
+	}
+
+	format_input_(&ctx->internal_buf, signal, channels, samples, bytes_per_sample);
+
+	FLAC__MD5Update(ctx, ctx->internal_buf.p8, bytes_needed);
+
+	return true;
+}

extern/flac/src/libFLAC/memory.c

@@ -0,0 +1,219 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2001-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#ifdef HAVE_STDINT_H
+#include <stdint.h>
+#endif
+
+#include "private/memory.h"
+#include "FLAC/assert.h"
+#include "share/compat.h"
+#include "share/alloc.h"
+
+void *FLAC__memory_alloc_aligned(size_t bytes, void **aligned_address)
+{
+	void *x;
+
+	FLAC__ASSERT(0 != aligned_address);
+
+#ifdef FLAC__ALIGN_MALLOC_DATA
+	/* align on 32-byte (256-bit) boundary */
+	x = safe_malloc_add_2op_(bytes, /*+*/31L);
+	*aligned_address = (void*)(((uintptr_t)x + 31L) & -32L);
+#else
+	x = safe_malloc_(bytes);
+	*aligned_address = x;
+#endif
+	return x;
+}
+
+FLAC__bool FLAC__memory_alloc_aligned_int32_array(size_t elements, FLAC__int32 **unaligned_pointer, FLAC__int32 **aligned_pointer)
+{
+	FLAC__int32 *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__int32 *pa; /* aligned pointer */
+		void        *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+FLAC__bool FLAC__memory_alloc_aligned_uint32_array(size_t elements, FLAC__uint32 **unaligned_pointer, FLAC__uint32 **aligned_pointer)
+{
+	FLAC__uint32 *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__uint32 *pa; /* aligned pointer */
+		void         *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+FLAC__bool FLAC__memory_alloc_aligned_int64_array(size_t elements, FLAC__int64 **unaligned_pointer, FLAC__int64 **aligned_pointer)
+{
+	FLAC__int64 *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__int64 *pa; /* aligned pointer */
+		void         *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+FLAC__bool FLAC__memory_alloc_aligned_uint64_array(size_t elements, FLAC__uint64 **unaligned_pointer, FLAC__uint64 **aligned_pointer)
+{
+	FLAC__uint64 *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__uint64 *pa; /* aligned pointer */
+		void         *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+#ifndef FLAC__INTEGER_ONLY_LIBRARY
+
+FLAC__bool FLAC__memory_alloc_aligned_real_array(size_t elements, FLAC__real **unaligned_pointer, FLAC__real **aligned_pointer)
+{
+	FLAC__real *pu; /* unaligned pointer */
+	union { /* union needed to comply with C99 pointer aliasing rules */
+		FLAC__real *pa; /* aligned pointer */
+		void       *pv; /* aligned pointer alias */
+	} u;
+
+	FLAC__ASSERT(elements > 0);
+	FLAC__ASSERT(0 != unaligned_pointer);
+	FLAC__ASSERT(0 != aligned_pointer);
+	FLAC__ASSERT(unaligned_pointer != aligned_pointer);
+
+	if(elements > SIZE_MAX / sizeof(*pu)) /* overflow check */
+		return false;
+
+	pu = FLAC__memory_alloc_aligned(sizeof(*pu) * elements, &u.pv);
+	if(0 == pu) {
+		return false;
+	}
+	else {
+		if(*unaligned_pointer != 0)
+			free(*unaligned_pointer);
+		*unaligned_pointer = pu;
+		*aligned_pointer = u.pa;
+		return true;
+	}
+}
+
+#endif
+
+void *safe_malloc_mul_2op_p(size_t size1, size_t size2)
+{
+	if(!size1 || !size2)
+		return malloc(1); /* malloc(0) is undefined; FLAC src convention is to always allocate */
+	if(size1 > SIZE_MAX / size2)
+		return 0;
+	return malloc(size1*size2);
+}

extern/flac/src/libFLAC/ogg_decoder_aspect.c

@@ -0,0 +1,720 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <string.h> /* for memcpy() */
+#include "FLAC/assert.h"
+#include "share/alloc.h" /* for free() */
+#include "private/ogg_decoder_aspect.h"
+#include "private/ogg_mapping.h"
+#include "private/macros.h"
+
+static FLAC__OggDecoderAspectReadStatus read_more_data_(FLAC__OggDecoderAspect *aspect, FLAC__OggDecoderAspectReadCallbackProxy read_callback, size_t bytes_requested, const FLAC__StreamDecoder *decoder, void *client_data);
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+static FLAC__OggDecoderAspectReadStatus read_more_data_(FLAC__OggDecoderAspect *aspect, FLAC__OggDecoderAspectReadCallbackProxy read_callback, size_t bytes_requested, const FLAC__StreamDecoder *decoder, void *client_data)
+{
+	static const size_t OGG_BYTES_CHUNK = 8192;
+	const size_t ogg_bytes_to_read = flac_max(bytes_requested, OGG_BYTES_CHUNK);
+	char *oggbuf = ogg_sync_buffer(&aspect->sync_state, ogg_bytes_to_read);
+
+	if(0 == oggbuf) {
+		return FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR;
+	}
+	else {
+		size_t ogg_bytes_read = ogg_bytes_to_read;
+
+		switch(read_callback(decoder, (FLAC__byte*)oggbuf, &ogg_bytes_read, client_data)) {
+			case FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK:
+				break;
+			case FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM:
+				aspect->end_of_stream = true;
+				break;
+			case FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT:
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ABORT;
+			default:
+				FLAC__ASSERT(0);
+		}
+
+		if(ogg_sync_wrote(&aspect->sync_state, ogg_bytes_read) < 0) {
+			/* double protection; this will happen if the read callback returns more bytes than the max requested, which would overflow Ogg's internal buffer */
+			FLAC__ASSERT(0);
+			return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+		}
+	}
+	return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
+}
+
+static FLAC__OggDecoderAspectReadStatus process_page_(FLAC__OggDecoderAspect *aspect, FLAC__StreamDecoderTellCallback tell_callback, const FLAC__StreamDecoder *decoder, void *client_data)
+{
+	/* got a page, grab the serial number if necessary */
+	if(aspect->need_serial_number) {
+		/* Check whether not FLAC. The next if is somewhat confusing: check
+		 * whether the length of the next page body agrees with the length
+		 * of a FLAC 'header' possibly contained in that page */
+		if(aspect->working_page.body_len > (long)(1 + FLAC__OGG_MAPPING_MAGIC_LENGTH) &&
+		   aspect->working_page.body[0] == FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE &&
+		   memcmp((&aspect->working_page.body) + 1, FLAC__OGG_MAPPING_MAGIC, FLAC__OGG_MAPPING_MAGIC_LENGTH)) {
+			aspect->bos_flag_seen = true;
+			aspect->serial_number = ogg_page_serialno(&aspect->working_page);
+			ogg_stream_reset_serialno(&aspect->stream_state, aspect->serial_number);
+			aspect->need_serial_number = false;
+
+			if(aspect->current_linknumber_advance_read >= aspect->number_of_links_detected) {
+				FLAC__uint64 tell_offset;
+				aspect->number_of_links_detected = aspect->current_linknumber_advance_read + 1;
+				aspect->linkdetails[aspect->current_linknumber_advance_read].serial_number = aspect->serial_number;
+				if(tell_callback != 0) {
+					if(tell_callback(decoder, &tell_offset, client_data) == FLAC__STREAM_DECODER_TELL_STATUS_OK)
+						aspect->linkdetails[aspect->current_linknumber_advance_read].start_byte = tell_offset - aspect->sync_state.fill + aspect->sync_state.returned
+						                                                                          - aspect->working_page.header_len - aspect->working_page.body_len;
+				}
+			}
+		}
+	}
+	if(aspect->beginning_of_link) {
+		if(aspect->bos_flag_seen && !ogg_page_bos(&aspect->working_page)) {
+			/* Page does not have BOS flag, which means we're done scanning for other serial numbers */
+			aspect->beginning_of_link = false;
+		}
+	}
+	if(ogg_stream_pagein(&aspect->stream_state, &aspect->working_page) == 0) {
+		aspect->have_working_page = true;
+		aspect->have_working_packet = false;
+	}
+	else if(aspect->beginning_of_link) {
+		/* At the beginning of a link, store the serial numbers of all other streams, to make
+		 * finding the end of a link through seeking possible */
+		if(ogg_page_bos(&aspect->working_page)) {
+			aspect->bos_flag_seen = true;
+			if(aspect->current_linknumber_advance_read >= aspect->number_of_links_indexed) {
+				FLAC__OggDecoderAspect_LinkDetails * current_link = &aspect->linkdetails[aspect->current_linknumber_advance_read];
+				/* Reallocate in chunks of 4 */
+				if((current_link->number_of_other_streams) % 4 == 0) {
+					long * tmpptr = NULL;
+					if(NULL == (tmpptr = safe_realloc_nofree_mul_2op_(current_link->other_serial_numbers, 4+current_link->number_of_other_streams, sizeof(long)))) {
+						return FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR;
+					}
+					current_link->other_serial_numbers = tmpptr;
+				}
+				current_link->other_serial_numbers[current_link->number_of_other_streams] = ogg_page_serialno(&aspect->working_page);
+				current_link->number_of_other_streams++;
+			}
+		}
+		/* No BOS flag seen yet, these pages might be still from previous link */
+	}
+	/* else do nothing, could be a page from another stream */
+	return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
+}
+
+static FLAC__bool check_size_of_link_allocation_(FLAC__OggDecoderAspect *aspect)
+{
+	/* double on reallocating */
+	if(aspect->current_linknumber >= aspect->number_of_links_allocated || aspect->current_linknumber_advance_read >= aspect->number_of_links_allocated) {
+		FLAC__OggDecoderAspect_LinkDetails * tmpptr = NULL;
+		if(NULL == (tmpptr = safe_realloc_nofree_mul_2op_(aspect->linkdetails,2*aspect->number_of_links_allocated,sizeof(FLAC__OggDecoderAspect_LinkDetails)))) {
+			return false;
+		}
+		aspect->linkdetails = tmpptr;
+		memset(aspect->linkdetails + aspect->number_of_links_allocated, 0, aspect->number_of_links_allocated * sizeof(FLAC__OggDecoderAspect_LinkDetails));
+		aspect->number_of_links_allocated *= 2;
+	}
+	return true;
+}
+
+FLAC__bool FLAC__ogg_decoder_aspect_init(FLAC__OggDecoderAspect *aspect)
+{
+	/* we will determine the serial number later if necessary */
+	if(ogg_stream_init(&aspect->stream_state, aspect->serial_number) != 0)
+		return false;
+
+	if(ogg_sync_init(&aspect->sync_state) != 0)
+		return false;
+
+	aspect->version_major = ~(0u);
+	aspect->version_minor = ~(0u);
+
+	aspect->need_serial_number = aspect->use_first_serial_number || aspect->decode_chained_stream;
+
+	aspect->end_of_stream = false;
+	aspect->have_working_page = false;
+	aspect->end_of_link = false;
+
+	aspect->current_linknumber = 0;
+	aspect->current_linknumber_advance_read = 0;
+	aspect->number_of_links_indexed = 0;
+	aspect->number_of_links_detected = 0;
+	aspect->number_of_links_allocated = 0;
+
+	if(NULL == (aspect->linkdetails = safe_realloc_mul_2op_(NULL,4,sizeof(FLAC__OggDecoderAspect_LinkDetails))))
+		return false;
+	memset(aspect->linkdetails, 0, 4 * sizeof(FLAC__OggDecoderAspect_LinkDetails));
+
+	aspect->number_of_links_allocated = 4;
+
+	return true;
+}
+
+void FLAC__ogg_decoder_aspect_finish(FLAC__OggDecoderAspect *aspect)
+{
+	uint32_t i;
+	(void)ogg_sync_clear(&aspect->sync_state);
+	(void)ogg_stream_clear(&aspect->stream_state);
+	if(NULL != aspect->linkdetails) {
+		for(i = 0; i < aspect->number_of_links_allocated; i++)
+			free(aspect->linkdetails[i].other_serial_numbers);
+		free(aspect->linkdetails);
+	}
+	aspect->linkdetails = NULL;
+}
+
+void FLAC__ogg_decoder_aspect_set_serial_number(FLAC__OggDecoderAspect *aspect, long value)
+{
+	aspect->use_first_serial_number = false;
+	aspect->serial_number = value;
+}
+
+void FLAC__ogg_decoder_aspect_set_defaults(FLAC__OggDecoderAspect *aspect)
+{
+	aspect->use_first_serial_number = true;
+	aspect->decode_chained_stream = false;
+}
+
+void FLAC__ogg_decoder_aspect_flush(FLAC__OggDecoderAspect *aspect)
+{
+	(void)ogg_stream_reset(&aspect->stream_state);
+	(void)ogg_sync_reset(&aspect->sync_state);
+	aspect->end_of_stream = false;
+	aspect->have_working_page = false;
+	aspect->end_of_link = false;
+}
+
+void FLAC__ogg_decoder_aspect_reset(FLAC__OggDecoderAspect *aspect)
+{
+	FLAC__ogg_decoder_aspect_flush(aspect);
+	aspect->current_linknumber = 0;
+	aspect->current_linknumber_advance_read = 0;
+
+	if(aspect->use_first_serial_number || aspect->decode_chained_stream)
+		aspect->need_serial_number = true;
+
+	aspect->beginning_of_link = true;
+	aspect->bos_flag_seen = false;
+}
+
+void FLAC__ogg_decoder_aspect_next_link(FLAC__OggDecoderAspect* aspect)
+{
+	aspect->end_of_link = false;
+	aspect->current_linknumber++;
+	aspect->beginning_of_link = true;
+	aspect->bos_flag_seen = false;
+}
+
+void FLAC__ogg_decoder_aspect_set_decode_chained_stream(FLAC__OggDecoderAspect* aspect, FLAC__bool value)
+{
+	aspect->decode_chained_stream = value;
+}
+
+FLAC__bool FLAC__ogg_decoder_aspect_get_decode_chained_stream(FLAC__OggDecoderAspect* aspect)
+{
+	return aspect->decode_chained_stream;
+}
+
+FLAC__OggDecoderAspect_TargetLink * FLAC__ogg_decoder_aspect_get_target_link(FLAC__OggDecoderAspect* aspect, FLAC__uint64 target_sample)
+{
+	/* This returns the link containing the seek target if known. In
+	 * effect, this function always returns NULL if no links have been
+	 * indexed */
+
+	uint32_t current_link = 0;
+	uint32_t total_samples = 0;
+
+	while(current_link < aspect->number_of_links_indexed) {
+		total_samples += aspect->linkdetails[current_link].samples;
+		if(target_sample < total_samples) {
+			aspect->target_link.serial_number = aspect->linkdetails[current_link].serial_number;
+			aspect->target_link.start_byte = aspect->linkdetails[current_link].start_byte;
+			aspect->target_link.samples_in_preceding_links = total_samples - aspect->linkdetails[current_link].samples;
+			aspect->target_link.end_byte = aspect->linkdetails[current_link].end_byte;
+			aspect->target_link.samples_this_link = aspect->linkdetails[current_link].samples;
+			aspect->target_link.linknumber = current_link;
+			return &aspect->target_link;
+		}
+		current_link++;
+	}
+	return NULL;
+}
+
+void FLAC__ogg_decoder_aspect_set_seek_parameters(FLAC__OggDecoderAspect *aspect, FLAC__OggDecoderAspect_TargetLink *target_link)
+{
+	if(target_link == 0) {
+		aspect->is_seeking = false;
+	}
+	else {
+		aspect->need_serial_number = false;
+		aspect->current_linknumber = target_link->linknumber;
+		aspect->current_linknumber_advance_read = target_link->linknumber;
+		aspect->serial_number = target_link->serial_number;
+		ogg_stream_reset_serialno(&aspect->stream_state, aspect->serial_number);
+		aspect->is_seeking = true;
+	}
+}
+
+
+FLAC__OggDecoderAspectReadStatus FLAC__ogg_decoder_aspect_read_callback_wrapper(FLAC__OggDecoderAspect *aspect, FLAC__byte buffer[], size_t *bytes, FLAC__OggDecoderAspectReadCallbackProxy read_callback, FLAC__StreamDecoderTellCallback tell_callback, const FLAC__StreamDecoder *decoder, void *client_data)
+{
+	const size_t bytes_requested = *bytes;
+
+	const uint32_t header_length =
+		FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH +
+		FLAC__OGG_MAPPING_MAGIC_LENGTH +
+		FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH +
+		FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH +
+		FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH;
+
+	/*
+	 * The FLAC decoding API uses pull-based reads, whereas Ogg decoding
+	 * is push-based.  In libFLAC, when you ask to decode a frame, the
+	 * decoder will eventually call the read callback to supply some data,
+	 * but how much it asks for depends on how much free space it has in
+	 * its internal buffer.  It does not try to grow its internal buffer
+	 * to accommodate a whole frame because then the internal buffer size
+	 * could not be limited, which is necessary in embedded applications.
+	 *
+	 * Ogg however grows its internal buffer until a whole page is present;
+	 * only then can you get decoded data out.  So we can't just ask for
+	 * the same number of bytes from Ogg, then pass what's decoded down to
+	 * libFLAC.  If what libFLAC is asking for will not contain a whole
+	 * page, then we will get no data from ogg_sync_pageout(), and at the
+	 * same time cannot just read more data from the client for the purpose
+	 * of getting a whole decoded page because the decoded size might be
+	 * larger than libFLAC's internal buffer.
+	 *
+	 * Instead, whenever this read callback wrapper is called, we will
+	 * continually request data from the client until we have at least one
+	 * page, and manage pages internally so that we can send pieces of
+	 * pages down to libFLAC in such a way that we obey its size
+	 * requirement.  To limit the amount of callbacks, we will always try
+	 * to read in enough pages to return the full number of bytes
+	 * requested.
+	 */
+	*bytes = 0;
+	while (*bytes < bytes_requested && !aspect->end_of_stream) {
+		if (aspect->end_of_link && aspect->have_working_page) {
+			/* we've now consumed all packets of this link and have checked that a new page follows it */
+			if(*bytes > 0)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
+			else
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_LINK;
+		}
+		else if (aspect->have_working_page) {
+			if (aspect->have_working_packet) {
+				size_t n = bytes_requested - *bytes;
+				if ((size_t)aspect->working_packet.bytes <= n) {
+					/* the rest of the packet will fit in the buffer */
+					n = aspect->working_packet.bytes;
+					memcpy(buffer, aspect->working_packet.packet, n);
+					*bytes += n;
+					buffer += n;
+					aspect->have_working_packet = false;
+					if(aspect->working_packet.e_o_s) {
+						if(!aspect->decode_chained_stream)
+							aspect->end_of_stream = true;
+						else {
+							aspect->end_of_link = true;
+							aspect->current_linknumber_advance_read = aspect->current_linknumber + 1;
+							if(!check_size_of_link_allocation_(aspect))
+								return FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR;
+							if(aspect->current_linknumber >= aspect->number_of_links_indexed) {
+								FLAC__uint64 tell_offset;
+								FLAC__ASSERT(aspect->current_linknumber == aspect->number_of_links_indexed);
+								aspect->linkdetails[aspect->current_linknumber].samples = aspect->working_packet.granulepos;
+								if(tell_callback != 0) {
+									if(tell_callback(decoder, &tell_offset, client_data) == FLAC__STREAM_DECODER_TELL_STATUS_OK)
+										aspect->linkdetails[aspect->current_linknumber].end_byte = tell_offset - aspect->sync_state.fill + aspect->sync_state.returned;
+								}
+								aspect->number_of_links_indexed++;
+								aspect->need_serial_number = true;
+							}
+							if(!aspect->is_seeking)
+								aspect->need_serial_number = true;
+							aspect->have_working_page = false; /* e-o-s packet ends page */
+						}
+					}
+				}
+				else {
+					/* only n bytes of the packet will fit in the buffer */
+					memcpy(buffer, aspect->working_packet.packet, n);
+					*bytes += n;
+					buffer += n;
+					aspect->working_packet.packet += n;
+					aspect->working_packet.bytes -= n;
+				}
+			}
+			else {
+				/* try and get another packet */
+				const int ret = ogg_stream_packetout(&aspect->stream_state, &aspect->working_packet);
+				if (ret > 0) {
+					aspect->have_working_packet = true;
+					/* if it is the first header packet, check for magic and a supported Ogg FLAC mapping version */
+					if (aspect->working_packet.bytes > 0 && aspect->working_packet.packet[0] == FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE) {
+						const FLAC__byte *b = aspect->working_packet.packet;
+						if (aspect->working_packet.bytes < (long)header_length)
+							return FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC;
+						b += FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH;
+						if (memcmp(b, FLAC__OGG_MAPPING_MAGIC, FLAC__OGG_MAPPING_MAGIC_LENGTH))
+							return FLAC__OGG_DECODER_ASPECT_READ_STATUS_NOT_FLAC;
+						b += FLAC__OGG_MAPPING_MAGIC_LENGTH;
+						aspect->version_major = (uint32_t)(*b);
+						b += FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH;
+						aspect->version_minor = (uint32_t)(*b);
+						if (aspect->version_major != 1)
+							return FLAC__OGG_DECODER_ASPECT_READ_STATUS_UNSUPPORTED_MAPPING_VERSION;
+						aspect->working_packet.packet += header_length;
+						aspect->working_packet.bytes -= header_length;
+					}
+				}
+				else if (ret == 0) {
+					aspect->have_working_page = false;
+				}
+				else { /* ret < 0 */
+					/* lost sync, we'll leave the working page for the next call */
+					return FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC;
+				}
+			}
+		}
+		else {
+			/* try and get another page */
+			const int ret = ogg_sync_pageout(&aspect->sync_state, &aspect->working_page);
+			if (ret > 0) {
+				FLAC__OggDecoderAspectReadStatus status = process_page_(aspect, tell_callback, decoder, client_data);
+				if(status != FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK)
+					return status;
+			}
+			else if (ret == 0) {
+				/* need more data */
+				FLAC__OggDecoderAspectReadStatus status = read_more_data_(aspect, read_callback, bytes_requested - *bytes, decoder, client_data);
+				if(status != FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK)
+					return status;
+			}
+			else { /* ret < 0 */
+				/* lost sync, bail out */
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC;
+			}
+		}
+	}
+
+	if (aspect->end_of_stream && *bytes == 0) {
+		aspect->linkdetails[aspect->current_linknumber].is_last = true;
+		return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
+	}
+
+	return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
+}
+
+FLAC__OggDecoderAspectReadStatus FLAC__ogg_decoder_aspect_skip_link(FLAC__OggDecoderAspect *aspect, FLAC__OggDecoderAspectReadCallbackProxy read_callback, FLAC__StreamDecoderSeekCallback seek_callback, FLAC__StreamDecoderTellCallback tell_callback, FLAC__StreamDecoderLengthCallback length_callback, const FLAC__StreamDecoder *decoder, void *client_data)
+{
+	if(seek_callback == NULL || tell_callback == NULL || length_callback == NULL)
+		return FLAC__OGG_DECODER_ASPECT_READ_STATUS_CALLBACKS_NONFUNCTIONAL;
+
+	/* This extra check is here, because allocation failures while reading cannot always be
+	 * properly passed down the chain with the current API. So, instead, check again */
+	if(!check_size_of_link_allocation_(aspect))
+		return FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR;
+
+	if(aspect->current_linknumber < aspect->number_of_links_indexed) {
+		if(aspect->linkdetails[aspect->current_linknumber].is_last) {
+			/* Seek to end of stream */
+			FLAC__StreamDecoderLengthStatus lstatus;
+			FLAC__StreamDecoderSeekStatus sstatus;
+			uint64_t stream_length = 0;
+
+			lstatus = length_callback(decoder, &stream_length, client_data);
+			if(lstatus == FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_CALLBACKS_NONFUNCTIONAL;
+			if(lstatus == FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+
+			sstatus = seek_callback(decoder, stream_length, client_data);
+			if(sstatus == FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_CALLBACKS_NONFUNCTIONAL;
+			if(sstatus == FLAC__STREAM_DECODER_SEEK_STATUS_ERROR)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+
+			return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
+
+		}
+		else {
+			FLAC__StreamDecoderSeekStatus status;
+			status = seek_callback(decoder, aspect->linkdetails[aspect->current_linknumber].end_byte,client_data);
+			if(status == FLAC__STREAM_DECODER_SEEK_STATUS_UNSUPPORTED)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_CALLBACKS_NONFUNCTIONAL;
+			if(status == FLAC__STREAM_DECODER_SEEK_STATUS_ERROR)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+			FLAC__ogg_decoder_aspect_flush(aspect);
+			aspect->beginning_of_link = true;
+			aspect->need_serial_number = true;
+			aspect->bos_flag_seen = false;
+			aspect->current_linknumber++;
+			aspect->current_linknumber_advance_read = aspect->current_linknumber;
+			if(!check_size_of_link_allocation_(aspect))
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR;
+			aspect->have_working_page = false;
+			return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
+		}
+	}
+	else
+	{
+		/* End of current link is unknown, go search for it */
+		const uint32_t max_page_size = 65307;
+		uint64_t stream_length = 0;
+		uint64_t current_pos = 0;
+		uint64_t page_pos = 0;
+		uint64_t target_pos = 0;
+		uint64_t left_pos = 0;
+		uint64_t right_pos = 0;
+		FLAC__bool did_a_seek;
+		FLAC__bool seek_to_left_pos = false;
+		FLAC__bool keep_reading = false;
+		FLAC__bool find_bos_twice = aspect->need_serial_number;
+		int ret = 0;
+
+		{
+			FLAC__StreamDecoderLengthStatus lstatus;
+			FLAC__StreamDecoderTellStatus tstatus;
+
+			lstatus = length_callback(decoder, &stream_length, client_data);
+			if(lstatus == FLAC__STREAM_DECODER_LENGTH_STATUS_UNSUPPORTED)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_CALLBACKS_NONFUNCTIONAL;
+			if(lstatus == FLAC__STREAM_DECODER_LENGTH_STATUS_ERROR)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+
+			tstatus = tell_callback(decoder, &current_pos, client_data);
+			if(tstatus == FLAC__STREAM_DECODER_TELL_STATUS_UNSUPPORTED)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_CALLBACKS_NONFUNCTIONAL;
+			if(tstatus == FLAC__STREAM_DECODER_TELL_STATUS_ERROR)
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+		}
+
+
+		current_pos = current_pos - aspect->sync_state.fill + aspect->sync_state.returned;
+		left_pos = current_pos;
+		right_pos = stream_length;
+
+		while(1){
+			FLAC__bool seek_was_to_current_link = true;
+
+			if(right_pos <= left_pos || right_pos - left_pos < 9) {
+				/* FLAC frame is at least 9 byte in size */
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+			}
+			target_pos = left_pos + (right_pos - left_pos)/2;
+
+			if(keep_reading) {
+				/* To not end up in a loop, we need to keep reading until are able to change left_pos */
+				did_a_seek = false;
+			}
+			else if(current_pos < target_pos && current_pos + aspect->sync_state.fill - aspect->sync_state.returned > target_pos) {
+				/* Target location is already in buffer, keep reading */
+				did_a_seek = false;
+			}
+			else if(current_pos < target_pos && current_pos + max_page_size > target_pos) {
+				/* Target is very close to current location, just reading is probably faster than seeking */
+				did_a_seek = false;
+			}
+			else if(aspect->beginning_of_link) {
+				/* Still need to save all serial numbers at start of stream, so don't seek yet */
+				did_a_seek = false;
+			}
+			else {
+				if(seek_to_left_pos || target_pos - left_pos < max_page_size) {
+					/* Seek to start of bisect area */
+					target_pos = left_pos;
+					keep_reading = true;
+					seek_to_left_pos = false;
+				}
+				/* Seek */
+				if(seek_callback(decoder, target_pos, client_data) != FLAC__STREAM_DECODER_SEEK_STATUS_OK)
+					return false;
+				did_a_seek = true;
+				FLAC__ASSERT(tell_callback(decoder, &current_pos, client_data) == FLAC__STREAM_DECODER_TELL_STATUS_OK);
+				FLAC__ASSERT(current_pos == target_pos);
+				current_pos = target_pos;
+				(void)ogg_stream_reset(&aspect->stream_state);
+				(void)ogg_sync_reset(&aspect->sync_state);
+			}
+
+			/* Get a page, resynchronize if necessary */
+			while((ret = ogg_sync_pageseek(&aspect->sync_state, &aspect->working_page)) <= 0 && !aspect->end_of_stream) {
+				if(ret < 0)
+					current_pos -= ret;
+				else {
+					/* need more data */
+					FLAC__OggDecoderAspectReadStatus status = read_more_data_(aspect, read_callback, 0, decoder, client_data);
+					if(status != FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK)
+						return status;
+				}
+			}
+
+			page_pos = current_pos;
+			current_pos += aspect->working_page.header_len + aspect->working_page.body_len;
+
+			/* Check whether the page serial number belongs to this link or another link */
+			if (ret > 0) {
+				if(!aspect->beginning_of_link) {
+					/* got a page, check the serial number */
+					long serial_number = ogg_page_serialno(&aspect->working_page);
+					uint32_t i;
+					seek_was_to_current_link = false;
+					if(serial_number == aspect->linkdetails[aspect->current_linknumber].serial_number) {
+						/* This page belongs to current link */
+						seek_was_to_current_link = true;
+					}
+					for(i = 0; i < aspect->linkdetails[aspect->current_linknumber].number_of_other_streams; i++) {
+						if(serial_number == aspect->linkdetails[aspect->current_linknumber].other_serial_numbers[i]) {
+							/* This page belongs to the current link */
+							seek_was_to_current_link = true;
+						}
+					}
+					if(ogg_page_serialno(&aspect->working_page) == aspect->linkdetails[aspect->current_linknumber].serial_number && ogg_page_eos(&aspect->working_page)) {
+						/* Found EOS */
+						aspect->linkdetails[aspect->current_linknumber].end_byte = current_pos;
+						aspect->linkdetails[aspect->current_linknumber].samples = ogg_page_granulepos(&aspect->working_page);
+
+						aspect->number_of_links_indexed++;
+						aspect->current_linknumber_advance_read = aspect->current_linknumber + 1;
+						if(!check_size_of_link_allocation_(aspect))
+							return FLAC__OGG_DECODER_ASPECT_READ_STATUS_MEMORY_ALLOCATION_ERROR;
+
+						aspect->need_serial_number = true;
+
+						/* Now, continue loop to check whether we are at end of stream or another link follows */
+						FLAC__ogg_decoder_aspect_next_link(aspect);
+						continue;
+					}
+					if(seek_was_to_current_link) {
+						/* If the seek landed on a page with the serial number of the stream we're interested in, we can be sure
+						 * the EOS page will be later in the stream. If the seek landed on a stream with a different serial number
+						 * however, we cannot be sure. It could be the EOS page of that stream has already been seen. In that case
+						 * something else needs to be done, else we could end up in an endless loop */
+						if(ogg_page_serialno(&aspect->working_page) == aspect->linkdetails[aspect->current_linknumber].serial_number) {
+							left_pos = current_pos;
+							keep_reading = false;
+						}
+						else {
+							seek_to_left_pos = true;
+						}
+					}
+					else if(keep_reading) {
+						/* We read from the left_pos but found nothing interesting, so we can move left_pos up */
+						left_pos = current_pos;
+					}
+					else if(did_a_seek) {
+						if(right_pos <= page_pos) {
+							/* Ended up somewhere we've already been */
+							seek_to_left_pos = true;
+						}
+						else
+							right_pos = page_pos;
+					}
+					else {
+						/* Read forward but found an unknown serial number */
+						return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+					}
+				}
+				else { /* aspect->beginning_of_link == true */
+					if(aspect->end_of_stream) {
+						if(aspect->current_linknumber == 0)
+							return FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC;
+						aspect->current_linknumber--;
+						aspect->linkdetails[aspect->current_linknumber].is_last = true;
+						return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
+					}
+					else {
+						/* We can end up here for three reasons:
+						 * 1) We've found the end of the link and are looking whether a new one follows it. If that is the case,
+						 *    we need to finish after we found it
+						 * 2) We've just started skipping this link, and need to look for other BOS pages first. If that is the case,
+						 *    we need to continue after we found them
+						 * 3) We've don't know anything about the link that needs to be skipped yet, and we need to process the BOS
+						 *    pages first, and process the BOS pages of the next link */
+						FLAC__bool need_to_finish = aspect->need_serial_number && !find_bos_twice;
+						FLAC__OggDecoderAspectReadStatus status = process_page_(aspect, tell_callback, decoder, client_data);
+						if(status != FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK)
+							return status;
+						if(!aspect->need_serial_number) {
+							if(need_to_finish) {
+								/* Found start of next link, we're done */
+								return FLAC__OGG_DECODER_ASPECT_READ_STATUS_OK;
+							}
+							find_bos_twice = false;
+						}
+						if(!aspect->beginning_of_link) {
+							/* Done scanning BOS pages, move up left_pos */
+							left_pos = page_pos;
+						}
+					}
+				}
+			}
+			else if(aspect->end_of_stream) {
+				if(aspect->beginning_of_link && !aspect->bos_flag_seen) {
+					/* We were looking for the next link, but found end of stream instead */
+					if(aspect->current_linknumber == 0)
+						return FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC;
+					aspect->current_linknumber--;
+					aspect->linkdetails[aspect->current_linknumber].is_last = true;
+					return FLAC__OGG_DECODER_ASPECT_READ_STATUS_END_OF_STREAM;
+				}
+				else if(did_a_seek) {
+					/* Seeking to target_pos did no result in finding a page, set right_pos to that value */
+					right_pos = target_pos;
+				}
+				else {
+					/* We expected to find the EOS page without seeking, but ended up at the end of the stream */
+					return FLAC__OGG_DECODER_ASPECT_READ_STATUS_ERROR;
+				}
+			}
+			else if(ret == 0) {
+				/* ogg error */
+				return FLAC__OGG_DECODER_ASPECT_READ_STATUS_LOST_SYNC;
+			}
+		}
+	}
+}

extern/flac/src/libFLAC/ogg_encoder_aspect.c

@@ -0,0 +1,252 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2002-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <string.h> /* for memset() */
+#include "FLAC/assert.h"
+#include "private/ogg_encoder_aspect.h"
+#include "private/ogg_mapping.h"
+
+static const FLAC__byte FLAC__OGG_MAPPING_VERSION_MAJOR = 1;
+static const FLAC__byte FLAC__OGG_MAPPING_VERSION_MINOR = 0;
+
+/***********************************************************************
+ *
+ * Public class methods
+ *
+ ***********************************************************************/
+
+FLAC__bool FLAC__ogg_encoder_aspect_init(FLAC__OggEncoderAspect *aspect)
+{
+	/* we will determine the serial number later if necessary */
+	if(ogg_stream_init(&aspect->stream_state, aspect->serial_number) != 0)
+		return false;
+
+	aspect->seen_magic = false;
+	aspect->is_first_packet = true;
+	aspect->samples_written = 0;
+	aspect->last_page_granule_pos = 0;
+
+	return true;
+}
+
+void FLAC__ogg_encoder_aspect_finish(FLAC__OggEncoderAspect *aspect)
+{
+	(void)ogg_stream_clear(&aspect->stream_state);
+	/*@@@ what about the page? */
+}
+
+void FLAC__ogg_encoder_aspect_set_serial_number(FLAC__OggEncoderAspect *aspect, long value)
+{
+	aspect->serial_number = value;
+}
+
+FLAC__bool FLAC__ogg_encoder_aspect_set_num_metadata(FLAC__OggEncoderAspect *aspect, uint32_t value)
+{
+	if(value < (1u << FLAC__OGG_MAPPING_NUM_HEADERS_LEN)) {
+		aspect->num_metadata = value;
+		return true;
+	}
+	else
+		return false;
+}
+
+void FLAC__ogg_encoder_aspect_set_defaults(FLAC__OggEncoderAspect *aspect)
+{
+	aspect->serial_number = 0;
+	aspect->num_metadata = 0;
+}
+
+/*
+ * The basic FLAC -> Ogg mapping goes like this:
+ *
+ * - 'fLaC' magic and STREAMINFO block get combined into the first
+ *   packet.  The packet is prefixed with
+ *   + the one-byte packet type 0x7F
+ *   + 'FLAC' magic
+ *   + the 2 byte Ogg FLAC mapping version number
+ *   + tne 2 byte big-endian # of header packets
+ * - The first packet is flushed to the first page.
+ * - Each subsequent metadata block goes into its own packet.
+ * - Each metadata packet is flushed to page (this is not required,
+ *   the mapping only requires that a flush must occur after all
+ *   metadata is written).
+ * - Each subsequent FLAC audio frame goes into its own packet.
+ *
+ * WATCHOUT:
+ * This depends on the behavior of FLAC__StreamEncoder that we get a
+ * separate write callback for the fLaC magic, and then separate write
+ * callbacks for each metadata block and audio frame.
+ */
+FLAC__StreamEncoderWriteStatus FLAC__ogg_encoder_aspect_write_callback_wrapper(FLAC__OggEncoderAspect *aspect, const FLAC__byte buffer[], size_t bytes, uint32_t samples, uint32_t current_frame, FLAC__bool is_last_block, FLAC__OggEncoderAspectWriteCallbackProxy write_callback, void *encoder, void *client_data)
+{
+	/* WATCHOUT:
+	 * This depends on the behavior of FLAC__StreamEncoder that 'samples'
+	 * will be 0 for metadata writes.
+	 */
+	const FLAC__bool is_metadata = (samples == 0);
+
+	/*
+	 * Treat fLaC magic packet specially.  We will note when we see it, then
+	 * wait until we get the STREAMINFO and prepend it in that packet
+	 */
+	if(aspect->seen_magic) {
+		ogg_packet packet;
+		FLAC__byte synthetic_first_packet_body[
+			FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH +
+			FLAC__OGG_MAPPING_MAGIC_LENGTH +
+			FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH +
+			FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH +
+			FLAC__OGG_MAPPING_NUM_HEADERS_LENGTH +
+			FLAC__STREAM_SYNC_LENGTH +
+			FLAC__STREAM_METADATA_HEADER_LENGTH +
+			FLAC__STREAM_METADATA_STREAMINFO_LENGTH
+		];
+
+		memset(&packet, 0, sizeof(packet));
+		packet.granulepos = aspect->samples_written + samples;
+
+		if(aspect->is_first_packet) {
+			FLAC__byte *b = synthetic_first_packet_body;
+			if(bytes != FLAC__STREAM_METADATA_HEADER_LENGTH + FLAC__STREAM_METADATA_STREAMINFO_LENGTH) {
+				/*
+				 * If we get here, our assumption about the way write callbacks happen
+				 * (explained above) is wrong
+				 */
+				FLAC__ASSERT(0);
+				return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+			}
+			/* add first header packet type */
+			*b = FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE;
+			b += FLAC__OGG_MAPPING_PACKET_TYPE_LENGTH;
+			/* add 'FLAC' mapping magic */
+			memcpy(b, FLAC__OGG_MAPPING_MAGIC, FLAC__OGG_MAPPING_MAGIC_LENGTH);
+			b += FLAC__OGG_MAPPING_MAGIC_LENGTH;
+			/* add Ogg FLAC mapping major version number */
+			memcpy(b, &FLAC__OGG_MAPPING_VERSION_MAJOR, FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH);
+			b += FLAC__OGG_MAPPING_VERSION_MAJOR_LENGTH;
+			/* add Ogg FLAC mapping minor version number */
+			memcpy(b, &FLAC__OGG_MAPPING_VERSION_MINOR, FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH);
+			b += FLAC__OGG_MAPPING_VERSION_MINOR_LENGTH;
+			/* add number of header packets */
+			*b = (FLAC__byte)(aspect->num_metadata >> 8);
+			b++;
+			*b = (FLAC__byte)(aspect->num_metadata);
+			b++;
+			/* add native FLAC 'fLaC' magic */
+			memcpy(b, FLAC__STREAM_SYNC_STRING, FLAC__STREAM_SYNC_LENGTH);
+			b += FLAC__STREAM_SYNC_LENGTH;
+			/* add STREAMINFO */
+			memcpy(b, buffer, bytes);
+			FLAC__ASSERT(b + bytes - synthetic_first_packet_body == sizeof(synthetic_first_packet_body));
+			packet.packet = (uint8_t *)synthetic_first_packet_body;
+			packet.bytes = sizeof(synthetic_first_packet_body);
+
+			packet.b_o_s = 1;
+			aspect->is_first_packet = false;
+		}
+		else {
+			packet.packet = (uint8_t *)buffer;
+			packet.bytes = bytes;
+		}
+
+		if(is_last_block) {
+			/* we used to check:
+			 * FLAC__ASSERT(total_samples_estimate == 0 || total_samples_estimate == aspect->samples_written + samples);
+			 * but it's really not useful since total_samples_estimate is an estimate and can be inexact
+			 */
+			packet.e_o_s = 1;
+		}
+
+		if(ogg_stream_packetin(&aspect->stream_state, &packet) != 0)
+			return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+
+		/* For a batch of write_callback calls associated with the same current_frame, pass the number of samples in the
+		 * first non-metadata page body call, and then set to zero in case there are more iterations of the while loop (so
+		 * as not to give the impression of more samples being processed).
+		 */
+		if(is_metadata) {
+			while(ogg_stream_flush(&aspect->stream_state, &aspect->page) != 0) {
+				FLAC__int64 page_granule_pos = ogg_page_granulepos(&aspect->page);
+				uint32_t samples_on_this_page;
+				if(page_granule_pos == -1) {
+					/* a granule position of -1 means no packets finish on this page */
+					samples_on_this_page = 0;
+				}
+				else {
+					samples_on_this_page = (uint32_t)(page_granule_pos - aspect->last_page_granule_pos);
+					aspect->last_page_granule_pos = page_granule_pos;
+				}
+				if(write_callback(encoder, aspect->page.header, aspect->page.header_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+					return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+				if(write_callback(encoder, aspect->page.body, aspect->page.body_len, samples_on_this_page, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+					return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+			}
+		}
+		else {
+			while(ogg_stream_pageout(&aspect->stream_state, &aspect->page) != 0) {
+				FLAC__int64 page_granule_pos = ogg_page_granulepos(&aspect->page);
+				uint32_t samples_on_this_page;
+				if(page_granule_pos == -1) {
+					/* a granule position of -1 means no packets finish on this page */
+					samples_on_this_page = 0;
+				}
+				else {
+					samples_on_this_page = (uint32_t)(page_granule_pos - aspect->last_page_granule_pos);
+					aspect->last_page_granule_pos = page_granule_pos;
+				}
+				if(write_callback(encoder, aspect->page.header, aspect->page.header_len, 0, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+					return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+				if(write_callback(encoder, aspect->page.body, aspect->page.body_len, samples_on_this_page, current_frame, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK)
+					return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+			}
+		}
+	}
+	else if(is_metadata && current_frame == 0 && samples == 0 && bytes == 4 && 0 == memcmp(buffer, FLAC__STREAM_SYNC_STRING, sizeof(FLAC__STREAM_SYNC_STRING))) {
+		aspect->seen_magic = true;
+	}
+	else {
+		/*
+		 * If we get here, our assumption about the way write callbacks happen
+		 * explained above is wrong
+		 */
+		FLAC__ASSERT(0);
+		return FLAC__STREAM_ENCODER_WRITE_STATUS_FATAL_ERROR;
+	}
+
+	aspect->samples_written += samples;
+
+	return FLAC__STREAM_ENCODER_WRITE_STATUS_OK;
+}

extern/flac/src/libFLAC/ogg_helper.c

@@ -0,0 +1,210 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdlib.h> /* for malloc() */
+#include <string.h> /* for memcmp(), memcpy() */
+#include "FLAC/assert.h"
+#include "share/alloc.h"
+#include "private/ogg_helper.h"
+#include "protected/stream_encoder.h"
+
+
+static FLAC__bool full_read_(FLAC__StreamEncoder *encoder, FLAC__byte *buffer, size_t bytes, FLAC__StreamEncoderReadCallback read_callback, void *client_data)
+{
+	while(bytes > 0) {
+		size_t bytes_read = bytes;
+		switch(read_callback(encoder, buffer, &bytes_read, client_data)) {
+			case FLAC__STREAM_ENCODER_READ_STATUS_CONTINUE:
+				bytes -= bytes_read;
+				buffer += bytes_read;
+				break;
+			case FLAC__STREAM_ENCODER_READ_STATUS_END_OF_STREAM:
+				if(bytes_read == 0) {
+					encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+					return false;
+				}
+				bytes -= bytes_read;
+				buffer += bytes_read;
+				break;
+			case FLAC__STREAM_ENCODER_READ_STATUS_ABORT:
+				encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+				return false;
+			case FLAC__STREAM_ENCODER_READ_STATUS_UNSUPPORTED:
+				return false;
+			default:
+				/* double protection: */
+				FLAC__ASSERT(0);
+				encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+				return false;
+		}
+	}
+
+	return true;
+}
+
+void simple_ogg_page__init(ogg_page *page)
+{
+	page->header = 0;
+	page->header_len = 0;
+	page->body = 0;
+	page->body_len = 0;
+}
+
+void simple_ogg_page__clear(ogg_page *page)
+{
+	if(page->header)
+		free(page->header);
+	if(page->body)
+		free(page->body);
+	simple_ogg_page__init(page);
+}
+
+FLAC__bool simple_ogg_page__get_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderReadCallback read_callback, void *client_data)
+{
+	static const uint32_t OGG_HEADER_FIXED_PORTION_LEN = 27;
+	static const uint32_t OGG_MAX_HEADER_LEN = 27/*OGG_HEADER_FIXED_PORTION_LEN*/ + 255;
+	FLAC__byte crc[4];
+	FLAC__StreamEncoderSeekStatus seek_status;
+
+	FLAC__ASSERT(page->header == 0);
+	FLAC__ASSERT(page->header_len == 0);
+	FLAC__ASSERT(page->body == 0);
+	FLAC__ASSERT(page->body_len == 0);
+
+	/* move the stream pointer to the supposed beginning of the page */
+	if(0 == seek_callback)
+		return false;
+	if((seek_status = seek_callback((FLAC__StreamEncoder*)encoder, position, client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
+		if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
+			encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return false;
+	}
+
+	/* allocate space for the page header */
+	if(0 == (page->header = safe_malloc_(OGG_MAX_HEADER_LEN))) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	/* read in the fixed part of the page header (up to but not including
+	 * the segment table */
+	if(!full_read_(encoder, page->header, OGG_HEADER_FIXED_PORTION_LEN, read_callback, client_data))
+		return false;
+
+	page->header_len = OGG_HEADER_FIXED_PORTION_LEN + page->header[26];
+
+	/* check to see if it's a correct, "simple" page (one packet only) */
+	if(
+		memcmp(page->header, "OggS", 4) ||               /* doesn't start with OggS */
+		(page->header[5] & 0x01) ||                      /* continued packet */
+		memcmp(page->header+6, "\0\0\0\0\0\0\0\0", 8) || /* granulepos is non-zero */
+		page->header[26] == 0                            /* packet is 0-size */
+	) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+		return false;
+	}
+
+	/* read in the segment table */
+	if(!full_read_(encoder, page->header + OGG_HEADER_FIXED_PORTION_LEN, page->header[26], read_callback, client_data))
+		return false;
+
+	{
+		uint32_t i;
+
+		/* check to see that it specifies a single packet */
+		for(i = 0; i < (uint32_t)page->header[26] - 1; i++) {
+			if(page->header[i + OGG_HEADER_FIXED_PORTION_LEN] != 255) {
+				encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+				return false;
+			}
+		}
+
+		page->body_len = 255 * i + page->header[i + OGG_HEADER_FIXED_PORTION_LEN];
+	}
+
+	/* allocate space for the page body */
+	if(0 == (page->body = safe_malloc_(page->body_len))) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_MEMORY_ALLOCATION_ERROR;
+		return false;
+	}
+
+	/* read in the page body */
+	if(!full_read_(encoder, page->body, page->body_len, read_callback, client_data))
+		return false;
+
+	/* check the CRC */
+	memcpy(crc, page->header+22, 4);
+	ogg_page_checksum_set(page);
+	if(memcmp(crc, page->header+22, 4)) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_OGG_ERROR;
+		return false;
+	}
+
+	return true;
+}
+
+FLAC__bool simple_ogg_page__set_at(FLAC__StreamEncoder *encoder, FLAC__uint64 position, ogg_page *page, FLAC__StreamEncoderSeekCallback seek_callback, FLAC__StreamEncoderWriteCallback write_callback, void *client_data)
+{
+	FLAC__StreamEncoderSeekStatus seek_status;
+
+	FLAC__ASSERT(page->header != 0);
+	FLAC__ASSERT(page->header_len != 0);
+	FLAC__ASSERT(page->body != 0);
+	FLAC__ASSERT(page->body_len != 0);
+
+	/* move the stream pointer to the supposed beginning of the page */
+	if(0 == seek_callback)
+		return false;
+	if((seek_status = seek_callback((FLAC__StreamEncoder*)encoder, position, client_data)) != FLAC__STREAM_ENCODER_SEEK_STATUS_OK) {
+		if(seek_status == FLAC__STREAM_ENCODER_SEEK_STATUS_ERROR)
+			encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return false;
+	}
+
+	ogg_page_checksum_set(page);
+
+	/* re-write the page */
+	if(write_callback((FLAC__StreamEncoder*)encoder, page->header, page->header_len, 0, 0, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return false;
+	}
+	if(write_callback((FLAC__StreamEncoder*)encoder, page->body, page->body_len, 0, 0, client_data) != FLAC__STREAM_ENCODER_WRITE_STATUS_OK) {
+		encoder->protected_->state = FLAC__STREAM_ENCODER_CLIENT_ERROR;
+		return false;
+	}
+
+	return true;
+}

extern/flac/src/libFLAC/ogg_mapping.c

@@ -0,0 +1,48 @@
+/* libFLAC - Free Lossless Audio Codec
+ * Copyright (C) 2004-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include "private/ogg_mapping.h"
+
+const uint32_t FLAC__OGG_MAPPING_PACKET_TYPE_LEN = 8; /* bits */
+
+const FLAC__byte FLAC__OGG_MAPPING_FIRST_HEADER_PACKET_TYPE = 0x7f;
+
+const FLAC__byte * const FLAC__OGG_MAPPING_MAGIC = (const FLAC__byte * const)"FLAC";
+
+const uint32_t FLAC__OGG_MAPPING_VERSION_MAJOR_LEN = 8; /* bits */
+const uint32_t FLAC__OGG_MAPPING_VERSION_MINOR_LEN = 8; /* bits */
+
+const uint32_t FLAC__OGG_MAPPING_NUM_HEADERS_LEN = 16; /* bits */

extern/flac/src/libFLAC/stream_encoder_framing.c

@@ -0,0 +1,594 @@
+/* libFLAC - Free Lossless Audio Codec library
+ * Copyright (C) 2000-2009  Josh Coalson
+ * Copyright (C) 2011-2025  Xiph.Org Foundation
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ * - Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * - Neither the name of the Xiph.org Foundation nor the names of its
+ * contributors may be used to endorse or promote products derived from
+ * this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+ * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+ * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+ * A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE FOUNDATION OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+
+#ifdef HAVE_CONFIG_H
+#  include <config.h>
+#endif
+
+#include <stdio.h>
+#include <string.h> /* for strlen() */
+#include "private/stream_encoder_framing.h"
+#include "private/crc.h"
+#include "FLAC/assert.h"
+#include "share/compat.h"
+
+static FLAC__bool add_entropy_coding_method_(FLAC__BitWriter *bw, const FLAC__EntropyCodingMethod *method);
+static FLAC__bool add_residual_partitioned_rice_(FLAC__BitWriter *bw, const FLAC__int32 residual[], const uint32_t residual_samples, const uint32_t predictor_order, const uint32_t rice_parameters[], const uint32_t raw_bits[], const uint32_t partition_order, const FLAC__bool is_extended);
+
+FLAC__bool FLAC__add_metadata_block(const FLAC__StreamMetadata *metadata, FLAC__BitWriter *bw, FLAC__bool update_vendor_string)
+{
+	uint32_t i, j, metadata_length;
+	const uint32_t vendor_string_length = (uint32_t)strlen(FLAC__VENDOR_STRING);
+	const uint32_t start_bits = FLAC__bitwriter_get_input_bits_unconsumed(bw);
+
+	FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(bw));
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->is_last, FLAC__STREAM_METADATA_IS_LAST_LEN))
+		return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->type, FLAC__STREAM_METADATA_TYPE_LEN))
+		return false;
+
+	/*
+	 * First, for VORBIS_COMMENTs, adjust the length to reflect our vendor string
+	 */
+	metadata_length = metadata->length;
+	if(metadata->type == FLAC__METADATA_TYPE_VORBIS_COMMENT && update_vendor_string) {
+		FLAC__ASSERT(metadata->data.vorbis_comment.vendor_string.length == 0 || 0 != metadata->data.vorbis_comment.vendor_string.entry);
+		metadata_length -= metadata->data.vorbis_comment.vendor_string.length;
+		metadata_length += vendor_string_length;
+	}
+	FLAC__ASSERT(metadata_length < (1u << FLAC__STREAM_METADATA_LENGTH_LEN));
+	/* double protection */
+	if(metadata_length >= (1u << FLAC__STREAM_METADATA_LENGTH_LEN))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32(bw, metadata_length, FLAC__STREAM_METADATA_LENGTH_LEN))
+		return false;
+
+	switch(metadata->type) {
+		case FLAC__METADATA_TYPE_STREAMINFO:
+			FLAC__ASSERT(metadata->data.stream_info.min_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.min_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MIN_BLOCK_SIZE_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.max_blocksize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.max_blocksize, FLAC__STREAM_METADATA_STREAMINFO_MAX_BLOCK_SIZE_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.min_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.min_framesize, FLAC__STREAM_METADATA_STREAMINFO_MIN_FRAME_SIZE_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.max_framesize < (1u << FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.max_framesize, FLAC__STREAM_METADATA_STREAMINFO_MAX_FRAME_SIZE_LEN))
+				return false;
+			FLAC__ASSERT(FLAC__format_sample_rate_is_valid(metadata->data.stream_info.sample_rate));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.sample_rate, FLAC__STREAM_METADATA_STREAMINFO_SAMPLE_RATE_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.channels > 0);
+			FLAC__ASSERT(metadata->data.stream_info.channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.channels-1, FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN))
+				return false;
+			FLAC__ASSERT(metadata->data.stream_info.bits_per_sample > 0);
+			FLAC__ASSERT(metadata->data.stream_info.bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.stream_info.bits_per_sample-1, FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN))
+				return false;
+			if(metadata->data.stream_info.total_samples >= (FLAC__U64L(1) << FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN)){
+				if(!FLAC__bitwriter_write_raw_uint64(bw, 0, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
+					return false;
+			}else{
+				if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.stream_info.total_samples, FLAC__STREAM_METADATA_STREAMINFO_TOTAL_SAMPLES_LEN))
+					return false;
+			}
+			if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.stream_info.md5sum, 16))
+				return false;
+			break;
+		case FLAC__METADATA_TYPE_PADDING:
+			if(!FLAC__bitwriter_write_zeroes(bw, metadata->length * 8))
+				return false;
+			break;
+		case FLAC__METADATA_TYPE_APPLICATION:
+			if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.application.id, FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8))
+				return false;
+			if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.application.data, metadata->length - (FLAC__STREAM_METADATA_APPLICATION_ID_LEN / 8)))
+				return false;
+			break;
+		case FLAC__METADATA_TYPE_SEEKTABLE:
+			for(i = 0; i < metadata->data.seek_table.num_points; i++) {
+				if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.seek_table.points[i].sample_number, FLAC__STREAM_METADATA_SEEKPOINT_SAMPLE_NUMBER_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.seek_table.points[i].stream_offset, FLAC__STREAM_METADATA_SEEKPOINT_STREAM_OFFSET_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.seek_table.points[i].frame_samples, FLAC__STREAM_METADATA_SEEKPOINT_FRAME_SAMPLES_LEN))
+					return false;
+			}
+			break;
+		case FLAC__METADATA_TYPE_VORBIS_COMMENT:
+			if(update_vendor_string) {
+				if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, vendor_string_length))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)FLAC__VENDOR_STRING, vendor_string_length))
+					return false;
+			}
+			else {
+				if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, metadata->data.vorbis_comment.vendor_string.length))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.vorbis_comment.vendor_string.entry, metadata->data.vorbis_comment.vendor_string.length))
+					return false;
+			}
+			if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, metadata->data.vorbis_comment.num_comments))
+				return false;
+			for(i = 0; i < metadata->data.vorbis_comment.num_comments; i++) {
+				if(!FLAC__bitwriter_write_raw_uint32_little_endian(bw, metadata->data.vorbis_comment.comments[i].length))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.vorbis_comment.comments[i].entry, metadata->data.vorbis_comment.comments[i].length))
+					return false;
+			}
+			break;
+		case FLAC__METADATA_TYPE_CUESHEET:
+			FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN % 8 == 0);
+			if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)metadata->data.cue_sheet.media_catalog_number, FLAC__STREAM_METADATA_CUESHEET_MEDIA_CATALOG_NUMBER_LEN/8))
+				return false;
+			if(!FLAC__bitwriter_write_raw_uint64(bw, metadata->data.cue_sheet.lead_in, FLAC__STREAM_METADATA_CUESHEET_LEAD_IN_LEN))
+				return false;
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.cue_sheet.is_cd? 1 : 0, FLAC__STREAM_METADATA_CUESHEET_IS_CD_LEN))
+				return false;
+			if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_RESERVED_LEN))
+				return false;
+			if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.cue_sheet.num_tracks, FLAC__STREAM_METADATA_CUESHEET_NUM_TRACKS_LEN))
+				return false;
+			for(i = 0; i < metadata->data.cue_sheet.num_tracks; i++) {
+				const FLAC__StreamMetadata_CueSheet_Track *track = metadata->data.cue_sheet.tracks + i;
+
+				if(!FLAC__bitwriter_write_raw_uint64(bw, track->offset, FLAC__STREAM_METADATA_CUESHEET_TRACK_OFFSET_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, track->number, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUMBER_LEN))
+					return false;
+				FLAC__ASSERT(FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN % 8 == 0);
+				if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)track->isrc, FLAC__STREAM_METADATA_CUESHEET_TRACK_ISRC_LEN/8))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, track->type, FLAC__STREAM_METADATA_CUESHEET_TRACK_TYPE_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, track->pre_emphasis, FLAC__STREAM_METADATA_CUESHEET_TRACK_PRE_EMPHASIS_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_TRACK_RESERVED_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, track->num_indices, FLAC__STREAM_METADATA_CUESHEET_TRACK_NUM_INDICES_LEN))
+					return false;
+				for(j = 0; j < track->num_indices; j++) {
+					const FLAC__StreamMetadata_CueSheet_Index *indx = track->indices + j;
+
+					if(!FLAC__bitwriter_write_raw_uint64(bw, indx->offset, FLAC__STREAM_METADATA_CUESHEET_INDEX_OFFSET_LEN))
+						return false;
+					if(!FLAC__bitwriter_write_raw_uint32(bw, indx->number, FLAC__STREAM_METADATA_CUESHEET_INDEX_NUMBER_LEN))
+						return false;
+					if(!FLAC__bitwriter_write_zeroes(bw, FLAC__STREAM_METADATA_CUESHEET_INDEX_RESERVED_LEN))
+						return false;
+				}
+			}
+			break;
+		case FLAC__METADATA_TYPE_PICTURE:
+			{
+				size_t len;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.type, FLAC__STREAM_METADATA_PICTURE_TYPE_LEN))
+					return false;
+				len = strlen(metadata->data.picture.mime_type);
+				if(!FLAC__bitwriter_write_raw_uint32(bw, len, FLAC__STREAM_METADATA_PICTURE_MIME_TYPE_LENGTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, (const FLAC__byte*)metadata->data.picture.mime_type, len))
+					return false;
+				len = strlen((const char *)metadata->data.picture.description);
+				if(!FLAC__bitwriter_write_raw_uint32(bw, len, FLAC__STREAM_METADATA_PICTURE_DESCRIPTION_LENGTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.picture.description, len))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.width, FLAC__STREAM_METADATA_PICTURE_WIDTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.height, FLAC__STREAM_METADATA_PICTURE_HEIGHT_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.depth, FLAC__STREAM_METADATA_PICTURE_DEPTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.colors, FLAC__STREAM_METADATA_PICTURE_COLORS_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, metadata->data.picture.data_length, FLAC__STREAM_METADATA_PICTURE_DATA_LENGTH_LEN))
+					return false;
+				if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.picture.data, metadata->data.picture.data_length))
+					return false;
+			}
+			break;
+		default:
+			if(!FLAC__bitwriter_write_byte_block(bw, metadata->data.unknown.data, metadata->length))
+				return false;
+			break;
+	}
+
+	/* Now check whether metadata block length was correct */
+	{
+		uint32_t length_in_bits = FLAC__bitwriter_get_input_bits_unconsumed(bw);
+		if(length_in_bits < start_bits)
+			return false;
+		length_in_bits -= start_bits;
+		if(length_in_bits % 8 != 0 || length_in_bits != (metadata_length*8+32))
+			return false;
+	}
+
+	FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(bw));
+	return true;
+}
+
+FLAC__bool FLAC__frame_add_header(const FLAC__FrameHeader *header, FLAC__BitWriter *bw)
+{
+	uint32_t u, blocksize_hint, sample_rate_hint;
+	FLAC__byte crc;
+
+	FLAC__ASSERT(FLAC__bitwriter_is_byte_aligned(bw));
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__FRAME_HEADER_SYNC, FLAC__FRAME_HEADER_SYNC_LEN))
+		return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, 0, FLAC__FRAME_HEADER_RESERVED_LEN))
+		return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, (header->number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER)? 0 : 1, FLAC__FRAME_HEADER_BLOCKING_STRATEGY_LEN))
+		return false;
+
+	FLAC__ASSERT(header->blocksize > 0 && header->blocksize <= FLAC__MAX_BLOCK_SIZE);
+	/* when this assertion holds true, any legal blocksize can be expressed in the frame header */
+	FLAC__ASSERT(FLAC__MAX_BLOCK_SIZE <= 65535u);
+	blocksize_hint = 0;
+	switch(header->blocksize) {
+		case   192: u = 1; break;
+		case   576: u = 2; break;
+		case  1152: u = 3; break;
+		case  2304: u = 4; break;
+		case  4608: u = 5; break;
+		case   256: u = 8; break;
+		case   512: u = 9; break;
+		case  1024: u = 10; break;
+		case  2048: u = 11; break;
+		case  4096: u = 12; break;
+		case  8192: u = 13; break;
+		case 16384: u = 14; break;
+		case 32768: u = 15; break;
+		default:
+			if(header->blocksize <= 0x100)
+				blocksize_hint = u = 6;
+			else
+				blocksize_hint = u = 7;
+			break;
+	}
+	if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_BLOCK_SIZE_LEN))
+		return false;
+
+	FLAC__ASSERT(FLAC__format_sample_rate_is_valid(header->sample_rate));
+	sample_rate_hint = 0;
+	switch(header->sample_rate) {
+		case  88200: u = 1; break;
+		case 176400: u = 2; break;
+		case 192000: u = 3; break;
+		case   8000: u = 4; break;
+		case  16000: u = 5; break;
+		case  22050: u = 6; break;
+		case  24000: u = 7; break;
+		case  32000: u = 8; break;
+		case  44100: u = 9; break;
+		case  48000: u = 10; break;
+		case  96000: u = 11; break;
+		default:
+			if(header->sample_rate <= 255000 && header->sample_rate % 1000 == 0)
+				sample_rate_hint = u = 12;
+			else if(header->sample_rate <= 655350 && header->sample_rate % 10 == 0)
+				sample_rate_hint = u = 14;
+			else if(header->sample_rate <= 0xffff)
+				sample_rate_hint = u = 13;
+			else
+				u = 0;
+			break;
+	}
+	if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_SAMPLE_RATE_LEN))
+		return false;
+
+	FLAC__ASSERT(header->channels > 0 && header->channels <= (1u << FLAC__STREAM_METADATA_STREAMINFO_CHANNELS_LEN) && header->channels <= FLAC__MAX_CHANNELS);
+	switch(header->channel_assignment) {
+		case FLAC__CHANNEL_ASSIGNMENT_INDEPENDENT:
+			u = header->channels - 1;
+			break;
+		case FLAC__CHANNEL_ASSIGNMENT_LEFT_SIDE:
+			FLAC__ASSERT(header->channels == 2);
+			u = 8;
+			break;
+		case FLAC__CHANNEL_ASSIGNMENT_RIGHT_SIDE:
+			FLAC__ASSERT(header->channels == 2);
+			u = 9;
+			break;
+		case FLAC__CHANNEL_ASSIGNMENT_MID_SIDE:
+			FLAC__ASSERT(header->channels == 2);
+			u = 10;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+	if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_CHANNEL_ASSIGNMENT_LEN))
+		return false;
+
+	FLAC__ASSERT(header->bits_per_sample > 0 && header->bits_per_sample <= (1u << FLAC__STREAM_METADATA_STREAMINFO_BITS_PER_SAMPLE_LEN));
+	switch(header->bits_per_sample) {
+		case 8 : u = 1; break;
+		case 12: u = 2; break;
+		case 16: u = 4; break;
+		case 20: u = 5; break;
+		case 24: u = 6; break;
+		case 32: u = 7; break;
+		default: u = 0; break;
+	}
+	if(!FLAC__bitwriter_write_raw_uint32(bw, u, FLAC__FRAME_HEADER_BITS_PER_SAMPLE_LEN))
+		return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, 0, FLAC__FRAME_HEADER_ZERO_PAD_LEN))
+		return false;
+
+	if(header->number_type == FLAC__FRAME_NUMBER_TYPE_FRAME_NUMBER) {
+		if(!FLAC__bitwriter_write_utf8_uint32(bw, header->number.frame_number))
+			return false;
+	}
+	else {
+		if(!FLAC__bitwriter_write_utf8_uint64(bw, header->number.sample_number))
+			return false;
+	}
+
+	if(blocksize_hint)
+		if(!FLAC__bitwriter_write_raw_uint32(bw, header->blocksize-1, (blocksize_hint==6)? 8:16))
+			return false;
+
+	switch(sample_rate_hint) {
+		case 12:
+			if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate / 1000, 8))
+				return false;
+			break;
+		case 13:
+			if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate, 16))
+				return false;
+			break;
+		case 14:
+			if(!FLAC__bitwriter_write_raw_uint32(bw, header->sample_rate / 10, 16))
+				return false;
+			break;
+	}
+
+	/* write the CRC */
+	if(!FLAC__bitwriter_get_write_crc8(bw, &crc))
+		return false;
+	if(!FLAC__bitwriter_write_raw_uint32(bw, crc, FLAC__FRAME_HEADER_CRC_LEN))
+		return false;
+
+	return true;
+}
+
+FLAC__bool FLAC__subframe_add_constant(const FLAC__Subframe_Constant *subframe, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw)
+{
+	FLAC__bool ok;
+
+	ok =
+		FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_CONSTANT_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN) &&
+		(wasted_bits? FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1) : true) &&
+		FLAC__bitwriter_write_raw_int64(bw, subframe->value, subframe_bps)
+	;
+
+	return ok;
+}
+
+FLAC__bool FLAC__subframe_add_fixed(const FLAC__Subframe_Fixed *subframe, uint32_t residual_samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw)
+{
+	uint32_t i;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_FIXED_BYTE_ALIGNED_MASK | (subframe->order<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
+		return false;
+	if(wasted_bits)
+		if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
+			return false;
+
+	for(i = 0; i < subframe->order; i++)
+		if(!FLAC__bitwriter_write_raw_int64(bw, subframe->warmup[i], subframe_bps))
+			return false;
+
+	if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method))
+		return false;
+	switch(subframe->entropy_coding_method.type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!add_residual_partitioned_rice_(
+				bw,
+				subframe->residual,
+				residual_samples,
+				subframe->order,
+				subframe->entropy_coding_method.data.partitioned_rice.contents->parameters,
+				subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits,
+				subframe->entropy_coding_method.data.partitioned_rice.order,
+				/*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2
+			))
+				return false;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+
+	return true;
+}
+
+FLAC__bool FLAC__subframe_add_lpc(const FLAC__Subframe_LPC *subframe, uint32_t residual_samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw)
+{
+	uint32_t i;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_LPC_BYTE_ALIGNED_MASK | ((subframe->order-1)<<1) | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
+		return false;
+	if(wasted_bits)
+		if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
+			return false;
+
+	for(i = 0; i < subframe->order; i++)
+		if(!FLAC__bitwriter_write_raw_int64(bw, subframe->warmup[i], subframe_bps))
+			return false;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, subframe->qlp_coeff_precision-1, FLAC__SUBFRAME_LPC_QLP_COEFF_PRECISION_LEN))
+		return false;
+	if(!FLAC__bitwriter_write_raw_int32(bw, subframe->quantization_level, FLAC__SUBFRAME_LPC_QLP_SHIFT_LEN))
+		return false;
+	for(i = 0; i < subframe->order; i++)
+		if(!FLAC__bitwriter_write_raw_int32(bw, subframe->qlp_coeff[i], subframe->qlp_coeff_precision))
+			return false;
+
+	if(!add_entropy_coding_method_(bw, &subframe->entropy_coding_method))
+		return false;
+	switch(subframe->entropy_coding_method.type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!add_residual_partitioned_rice_(
+				bw,
+				subframe->residual,
+				residual_samples,
+				subframe->order,
+				subframe->entropy_coding_method.data.partitioned_rice.contents->parameters,
+				subframe->entropy_coding_method.data.partitioned_rice.contents->raw_bits,
+				subframe->entropy_coding_method.data.partitioned_rice.order,
+				/*is_extended=*/subframe->entropy_coding_method.type == FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2
+			))
+				return false;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+
+	return true;
+}
+
+FLAC__bool FLAC__subframe_add_verbatim(const FLAC__Subframe_Verbatim *subframe, uint32_t samples, uint32_t subframe_bps, uint32_t wasted_bits, FLAC__BitWriter *bw)
+{
+	uint32_t i;
+
+	if(!FLAC__bitwriter_write_raw_uint32(bw, FLAC__SUBFRAME_TYPE_VERBATIM_BYTE_ALIGNED_MASK | (wasted_bits? 1:0), FLAC__SUBFRAME_ZERO_PAD_LEN + FLAC__SUBFRAME_TYPE_LEN + FLAC__SUBFRAME_WASTED_BITS_FLAG_LEN))
+		return false;
+	if(wasted_bits)
+		if(!FLAC__bitwriter_write_unary_unsigned(bw, wasted_bits-1))
+			return false;
+
+	if(subframe->data_type == FLAC__VERBATIM_SUBFRAME_DATA_TYPE_INT32) {
+		const FLAC__int32 *signal = subframe->data.int32;
+
+		FLAC__ASSERT(subframe_bps < 33);
+
+		for(i = 0; i < samples; i++)
+			if(!FLAC__bitwriter_write_raw_int32(bw, signal[i], subframe_bps))
+				return false;
+	}
+	else {
+		const FLAC__int64 *signal = subframe->data.int64;
+
+		FLAC__ASSERT(subframe_bps == 33);
+
+		for(i = 0; i < samples; i++)
+			if(!FLAC__bitwriter_write_raw_int64(bw, (FLAC__int64)signal[i], subframe_bps))
+				return false;
+	}
+
+	return true;
+}
+
+FLAC__bool add_entropy_coding_method_(FLAC__BitWriter *bw, const FLAC__EntropyCodingMethod *method)
+{
+	if(!FLAC__bitwriter_write_raw_uint32(bw, method->type, FLAC__ENTROPY_CODING_METHOD_TYPE_LEN))
+		return false;
+	switch(method->type) {
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE:
+		case FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2:
+			if(!FLAC__bitwriter_write_raw_uint32(bw, method->data.partitioned_rice.order, FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ORDER_LEN))
+				return false;
+			break;
+		default:
+			FLAC__ASSERT(0);
+	}
+	return true;
+}
+
+FLAC__bool add_residual_partitioned_rice_(FLAC__BitWriter *bw, const FLAC__int32 residual[], const uint32_t residual_samples, const uint32_t predictor_order, const uint32_t rice_parameters[], const uint32_t raw_bits[], const uint32_t partition_order, const FLAC__bool is_extended)
+{
+	const uint32_t plen = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_PARAMETER_LEN : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_PARAMETER_LEN;
+	const uint32_t pesc = is_extended? FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE2_ESCAPE_PARAMETER : FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_ESCAPE_PARAMETER;
+
+	if(partition_order == 0) {
+		uint32_t i;
+
+		if(raw_bits[0] == 0) {
+			if(!FLAC__bitwriter_write_raw_uint32(bw, rice_parameters[0], plen))
+				return false;
+			if(!FLAC__bitwriter_write_rice_signed_block(bw, residual, residual_samples, rice_parameters[0]))
+				return false;
+		}
+		else {
+			FLAC__ASSERT(rice_parameters[0] == 0);
+			if(!FLAC__bitwriter_write_raw_uint32(bw, pesc, plen))
+				return false;
+			if(!FLAC__bitwriter_write_raw_uint32(bw, raw_bits[0], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
+				return false;
+			for(i = 0; i < residual_samples; i++) {
+				if(!FLAC__bitwriter_write_raw_int32(bw, residual[i], raw_bits[0]))
+					return false;
+			}
+		}
+		return true;
+	}
+	else {
+		uint32_t i, j, k = 0, k_last = 0;
+		uint32_t partition_samples;
+		const uint32_t default_partition_samples = (residual_samples+predictor_order) >> partition_order;
+		for(i = 0; i < (1u<<partition_order); i++) {
+			partition_samples = default_partition_samples;
+			if(i == 0)
+				partition_samples -= predictor_order;
+			k += partition_samples;
+			if(raw_bits[i] == 0) {
+				if(!FLAC__bitwriter_write_raw_uint32(bw, rice_parameters[i], plen))
+					return false;
+				if(!FLAC__bitwriter_write_rice_signed_block(bw, residual+k_last, k-k_last, rice_parameters[i]))
+					return false;
+			}
+			else {
+				if(!FLAC__bitwriter_write_raw_uint32(bw, pesc, plen))
+					return false;
+				if(!FLAC__bitwriter_write_raw_uint32(bw, raw_bits[i], FLAC__ENTROPY_CODING_METHOD_PARTITIONED_RICE_RAW_LEN))
+					return false;
+				for(j = k_last; j < k; j++) {
+					if(!FLAC__bitwriter_write_raw_int32(bw, residual[j], raw_bits[i]))
+						return false;
+				}
+			}
+			k_last = k;
+		}
+		return true;
+	}
+}