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
main()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