examples/chaining_example.c

   1 /********************************************************************
   2  *                                                                  *
   3  * THIS FILE IS PART OF THE Ogg Vorbis SOFTWARE CODEC SOURCE CODE.  *
   4  * USE, DISTRIBUTION AND REPRODUCTION OF THIS SOURCE IS GOVERNED BY *
   5  * THE GNU PUBLIC LICENSE 2, WHICH IS INCLUDED WITH THIS SOURCE.    *
   6  * PLEASE READ THESE TERMS DISTRIBUTING.                            *
   7  *                                                                  *
   8  * THE OggSQUISH SOURCE CODE IS (C) COPYRIGHT 1994-2000             *
   9  * by Monty <monty@xiph.org> and The XIPHOPHORUS Company            *
  10  * http://www.xiph.org/                                             *
  11  *                                                                  *
  12  ********************************************************************
  13
  14  function: illustrate simple use of chained bitstream and vorbisfile.a
  15  last mod: $Id: chaining_example.c,v 1.6 2000/10/12 03:12:39 xiphmont Exp $
  16
  17  ********************************************************************/
  18
  19 #include <vorbis/codec.h>
  20 #include <vorbis/vorbisfile.h>
  21
  22 int main(){
  23   OggVorbis_File ov;
  24   int i;
  25
  26   /* open the file/pipe on stdin */
  27   if(ov_open(stdin,&ov,NULL,-1)==-1){
  28     printf("Could not open input as an OggVorbis file.\n\n");
  29     exit(1);
  30   }
  31
  32   /* print details about each logical bitstream in the input */
  33   if(ov_seekable(&ov)){
  34     printf("Input bitstream contained %ld logical bitstream section(s).\n",
  35            ov_streams(&ov));
  36     printf("Total bitstream playing time: %ld seconds\n\n",
  37            (long)ov_time_total(&ov,-1));
  38
  39   }else{
  40     printf("Standard input was not seekable.\n"
  41            "First logical bitstream information:\n\n");
  42   }
  43
  44   for(i=0;i<ov_streams(&ov);i++){
  45     vorbis_info *vi=ov_info(&ov,i);
  46     printf("\tlogical bitstream section %d information:\n",i+1);
  47     printf("\t\t%ldHz %d channels bitrate %ldkbps serial number=%ld\n",
  48            vi->rate,vi->channels,ov_bitrate(&ov,i)/1000,
  49            ov_serialnumber(&ov,i));
  50     printf("\t\tcompressed length: %ld bytes ",(long)(ov_raw_total(&ov,i)));
  51     printf(" play time: %lds\n",(long)ov_time_total(&ov,i));
  52   }
  53
  54   ov_clear(&ov);
  55   return 0;
  56 }
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