50 lines
1,020 B
C
50 lines
1,020 B
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sndfile.h>
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#define BUF_SIZE 8192
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// usage: assert_delta file
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// return values:
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// - 0: pass (file is silence)
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// - 1: fail (noise found)
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// - 2: command line error
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// - 3: file open error
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int main(int argc, char** argv) {
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if (argc<2) return 2;
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SF_INFO si;
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memset(&si,0,sizeof(SF_INFO));
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SNDFILE* sf=sf_open(argv[1],SFM_READ,&si);
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if (sf==NULL) {
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fprintf(stderr,"open: %s\n",sf_strerror(NULL));
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return 3;
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}
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if (si.channels<1) {
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fprintf(stderr,"invalid channel count\n");
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return 3;
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}
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float* buf=malloc(BUF_SIZE*si.channels*sizeof(float));
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sf_count_t totalRead=0;
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size_t seekPos=0;
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while ((totalRead=sf_readf_float(sf,buf,BUF_SIZE))!=0) {
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for (int i=0; i<totalRead*si.channels; i++) {
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if (buf[i]!=0.0f) {
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printf("%ld\n",seekPos+(i/si.channels));
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sf_close(sf);
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free(buf);
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return 1;
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}
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}
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seekPos+=BUF_SIZE;
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}
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sf_close(sf);
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free(buf);
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return 0;
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}
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