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 1.5 2000/06/14 10:13:35 xiphmont Exp $
  16
  17  ********************************************************************/
  18
  19 #include "vorbis/codec.h"
  20 #include "vorbis/vorbisfile.h"
  21 #include "../lib/misc.h"
  22
  23 int main(){
  24   OggVorbis_File ov;
  25   int i;
  26
  27   /* open the file/pipe on stdin */
  28   if(ov_open(stdin,&ov,NULL,-1)==-1){
  29     printf("Could not open input as an OggVorbis file.\n\n");
  30     exit(1);
  31   }
  32
  33   /* print details about each logical bitstream in the input */
  34   if(ov_seekable(&ov)){
  35     printf("Input bitstream contained %ld logical bitstream section(s).\n",
  36            ov_streams(&ov));
  37     printf("Total bitstream playing time: %ld seconds\n\n",
  38            (long)ov_time_total(&ov,-1));
  39
  40   }else{
  41     printf("Standard input was not seekable.\n"
  42            "First logical bitstream information:\n\n");
  43   }
  44
  45   for(i=0;i<ov_streams(&ov);i++){
  46     vorbis_info *vi=ov_info(&ov,i);
  47     printf("\tlogical bitstream section %d information:\n",i+1);
  48     printf("\t\t%ldHz %d channels bitrate %ldkbps serial number=%ld\n",
  49            vi->rate,vi->channels,ov_bitrate(&ov,i)/1000,
  50            ov_serialnumber(&ov,i));
  51     printf("\t\tcompressed length: %ld bytes ",(long)(ov_raw_total(&ov,i)));
  52     printf(" play time: %lds\n",(long)ov_time_total(&ov,i));
  53   }
  54
  55   ov_clear(&ov);
  56   return 0;
  57 }
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