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 1994-1999             *
   9  * by 1999 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  author: Monty <xiphmont@mit.edu>
  16  modifications by: Monty
  17  last modification date: Nov 02 1999
  18
  19  ********************************************************************/
  20
  21 #include "codec.h"
  22 #include "vorbisfile.h"
  23
  24 int main(){
  25   OggVorbis_File ov;
  26   int i;
  27
  28   /* open the file/pipe on stdin */
  29   if(ov_open(stdin,&ov,NULL,-1)==-1){
  30     printf("Could not open input as an OggVorbis file.\n\n");
  31     exit(1);
  32   }
  33
  34   /* print details about each logical bitstream in the input */
  35   if(ov_seekable(&ov)){
  36     printf("Input bitstream contained %ld logical bitstream section(s).\n",
  37            ov_streams(&ov));
  38     printf("Total bitstream playing time: %ld seconds\n\n",
  39            (long)ov_time_total(&ov,-1));
  40
  41   }else{
  42     printf("Standard input was not seekable.\n"
  43            "First logical bitstream information:\n\n");
  44   }
  45
  46   for(i=0;i<ov_streams(&ov);i++){
  47     vorbis_info *vi=ov_info(&ov,i);
  48     printf("\tlogical bitstream section %d information:\n",i+1);
  49     printf("\t\t%ldHz %d channels bitrate %ldkbps serial number=%ld\n",
  50            vi->rate,vi->channels,ov_bitrate(&ov,i)/1000,
  51            ov_serialnumber(&ov,i));
  52     printf("\t\tcompressed length: %ld bytes ",ov_raw_total(&ov,i));
  53     printf(" play time: %lds\n",(long)ov_time_total(&ov,i));
  54   }
  55
  56   ov_clear(&ov);
  57   return 0;
  58 }
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