1 /******************************************************************** 2 * * 3 * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * 4 * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * 5 * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * 6 * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * 7 * * 8 * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * 9 * by the Xiph.Org Foundation http://www.xiph.org/ * 10 * * 11 ******************************************************************** 12 13 function: illustrate simple use of chained bitstream and vorbisfile.a 14 last mod: $Id: chaining_example.c 16243 2009-07-10 02:49:31Z xiphmont $ 15 16 ********************************************************************/ 17 18 #include <stdlib.h> 19 #include <vorbis/codec.h> 20 #include <vorbis/vorbisfile.h> 21 22 #ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */ 23 #include <io.h> 24 #include <fcntl.h> 25 #endif 26 27 int main(){ 28 OggVorbis_File ov; 29 int i; 30 31 #ifdef _WIN32 /* We need to set stdin to binary mode. Damn windows. */ 32 /* Beware the evil ifdef. We avoid these where we can, but this one we 33 cannot. Don't add any more, you'll probably go to hell if you do. */ 34 _setmode( _fileno( stdin ), _O_BINARY ); 35 #endif 36 37 /* open the file/pipe on stdin */ 38 if(ov_open_callbacks(stdin,&ov,NULL,-1,OV_CALLBACKS_NOCLOSE)<0){ 39 printf("Could not open input as an OggVorbis file.\n\n"); 40 exit(1); 41 } 42 43 /* print details about each logical bitstream in the input */ 44 if(ov_seekable(&ov)){ 45 printf("Input bitstream contained %ld logical bitstream section(s).\n", 46 ov_streams(&ov)); 47 printf("Total bitstream samples: %ld\n\n", 48 (long)ov_pcm_total(&ov,-1)); 49 printf("Total bitstream playing time: %ld seconds\n\n", 50 (long)ov_time_total(&ov,-1)); 51 52 }else{ 53 printf("Standard input was not seekable.\n" 54 "First logical bitstream information:\n\n"); 55 } 56 57 for(i=0;i<ov_streams(&ov);i++){ 58 vorbis_info *vi=ov_info(&ov,i); 59 printf("\tlogical bitstream section %d information:\n",i+1); 60 printf("\t\t%ldHz %d channels bitrate %ldkbps serial number=%ld\n", 61 vi->rate,vi->channels,ov_bitrate(&ov,i)/1000, 62 ov_serialnumber(&ov,i)); 63 printf("\t\theader length: %ld bytes\n",(long) 64 (ov.dataoffsets[i]-ov.offsets[i])); 65 printf("\t\tcompressed length: %ld bytes\n",(long)(ov_raw_total(&ov,i))); 66 printf("\t\tplay time: %lds\n",(long)ov_time_total(&ov,i)); 67 } 68 69 ov_clear(&ov); 70 return 0; 71 } 72 73
