136 lines
3 KiB
C
136 lines
3 KiB
C
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#include "sfconfig.h"
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#include <stdio.h>
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#include <stdlib.h>
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#include <math.h>
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#include <sndfile.h>
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static void *
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get_cues (const char *filename, double *sr)
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{
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SNDFILE *file;
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SF_INFO sfinfo;
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unsigned int err, size;
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uint32_t count = 0;
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SF_CUES_VAR(0) *info;
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if ((file = sf_open(filename, SFM_READ, &sfinfo)) == NULL)
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{
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printf("can't open file '%s'\n", filename);
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exit(1);
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}
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printf("\n---- get cues of file '%s'\n", filename);
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if ((err = sf_command(file, SFC_GET_CUE_COUNT, &count, sizeof(uint32_t))) == SF_FALSE)
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{
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if (sf_error(file))
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{
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printf("can't get cue info size for file '%s' (arg size %lu), err %s\n",
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filename, sizeof(uint32_t), sf_strerror(file));
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exit(2);
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}
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else
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printf("no cue info for file '%s'\n", filename);
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return NULL;
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}
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size = sizeof(*info) + count * sizeof(SF_CUE_POINT);
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printf("number of cues %d size %d\n", count, size);
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if (!(info = malloc(size)))
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return NULL;
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if (sf_command(file, SFC_GET_CUE, info, size) == SF_FALSE)
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{
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printf("can't get cue info of size %d for file '%s' error %s\n",
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size, filename, sf_strerror(file));
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exit(3);
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}
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*sr = sfinfo.samplerate;
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sf_close(file);
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return info;
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}
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static void
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test_cues (const char *filename)
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{
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unsigned int i;
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double sr;
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SF_CUES_VAR(0) *info = get_cues(filename, &sr);
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if (info == NULL)
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exit(1);
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for (i = 0; i < info->cue_count; i++)
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{
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int pos = info->cue_points[i].position;
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double t = (double) pos / sr;
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double expected = i < 8 ? (double) i / 3. : 10. / 3.;
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double error = (double) fabs(t - expected);
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printf("cue %02d: markerID %02d position %6d offset %6d (time %.3f expected %.3f diff %f) label '%s'\n",
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i, info->cue_points[i].indx, pos, info->cue_points[i].sample_offset, t, expected, error, info->cue_points[i].name);
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if (error > 0.025)
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exit(4);
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}
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free(info);
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}
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static void
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print_cues (const char *filename)
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{
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unsigned int i;
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double sr;
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SF_CUES_VAR(0) *info = get_cues(filename, &sr);
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if (info == NULL)
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exit(1);
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for (i = 0; i < info->cue_count; i++)
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{
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int pos = info->cue_points[i].position;
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int indx = info->cue_points[i].indx;
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int cstart = info->cue_points[i].chunk_start;
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int bstart = info->cue_points[i].block_start;
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int offset = info->cue_points[i].sample_offset;
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const char *name = info->cue_points[i].name;
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double t = (double) pos / sr;
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if (cstart != 0 || bstart != 0)
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printf("cue %02d time %7.3f: markerID %02d position %8d chunk_start %d block_start %d offset %8d label '%s'\n",
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i, t, indx, pos, offset, cstart, bstart, name);
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else
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printf("cue %02d time %7.3f: markerID %02d position %8d offset %8d label '%s'\n",
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i, t, indx, pos, offset, name);
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}
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free(info);
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}
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int
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main (int argc, char **argv)
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{
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int i;
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if (argc > 1)
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for (i = 1; i < argc; i++)
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print_cues(argv[i]);
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else
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{
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test_cues("clickpluck24.wav");
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test_cues("clickpluck.wav");
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test_cues("clickpluck.aiff");
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}
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return 0;
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}
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