cannam@86: cannam@86: cannam@86: cannam@86: vorbisfile - vorbisfile_example.c cannam@86: cannam@86: cannam@86: cannam@86: cannam@86: cannam@86: cannam@86: cannam@86: cannam@86: cannam@86:

Vorbisfile documentation

vorbisfile version 1.3.2 - 20101101

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vorbisfile_example.c

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cannam@86: The example program source: cannam@86: cannam@86:

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cannam@86: #include <stdio.h>
cannam@86: #include <stdlib.h>
cannam@86: #include <math.h>
cannam@86: #include "vorbis/codec.h"
cannam@86: #include "vorbis/vorbisfile.h"
cannam@86: 
cannam@86: #ifdef _WIN32
cannam@86: #include <io.h>
cannam@86: #include <fcntl.h>
cannam@86: #endif
cannam@86: 
cannam@86: char pcmout[4096];
cannam@86: 
cannam@86: int main(int argc, char **argv){
cannam@86:   OggVorbis_File vf;
cannam@86:   int eof=0;
cannam@86:   int current_section;
cannam@86: 
cannam@86: #ifdef _WIN32
cannam@86:   _setmode( _fileno( stdin ), _O_BINARY );
cannam@86:   _setmode( _fileno( stdout ), _O_BINARY );
cannam@86: #endif
cannam@86: 
cannam@86:   if(ov_open_callbacks(stdin, &vf, NULL, 0, OV_CALLBACKS_NOCLOSE) < 0) {
cannam@86:       fprintf(stderr,"Input does not appear to be an Ogg bitstream.\n");
cannam@86:       exit(1);
cannam@86:   }
cannam@86: 
cannam@86:   {
cannam@86:     char **ptr=ov_comment(&vf,-1)->user_comments;
cannam@86:     vorbis_info *vi=ov_info(&vf,-1);
cannam@86:     while(*ptr){
cannam@86:       fprintf(stderr,"%s\n",*ptr);
cannam@86:       ++ptr;
cannam@86:     }
cannam@86:     fprintf(stderr,"\nBitstream is %d channel, %ldHz\n",vi->channels,vi->rate);
cannam@86:     fprintf(stderr,"Encoded by: %s\n\n",ov_comment(&vf,-1)->vendor);
cannam@86:   }
cannam@86:   
cannam@86:   while(!eof){
cannam@86:     long ret=ov_read(&vf,pcmout,sizeof(pcmout),0,2,1,¤t_section);
cannam@86:     if (ret == 0) {
cannam@86:       /* EOF */
cannam@86:       eof=1;
cannam@86:     } else if (ret < 0) {
cannam@86:       /* error in the stream.  Not a problem, just reporting it in
cannam@86: 	 case we (the app) cares.  In this case, we don't. */
cannam@86:     } else {
cannam@86:       /* we don't bother dealing with sample rate changes, etc, but
cannam@86: 	 you'll have to */
cannam@86:       fwrite(pcmout,1,ret,stdout);
cannam@86:     }
cannam@86:   }
cannam@86: 
cannam@86:   ov_clear(&vf);
cannam@86:     
cannam@86:   fprintf(stderr,"Done.\n");
cannam@86:   return(0);
cannam@86: }
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copyright © 2000-2010 Xiph.Org

Ogg Vorbis

Vorbisfile documentation

vorbisfile version 1.3.2 - 20101101

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