[16] | 1 | /******************************************************************** |
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| 2 | * * |
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| 3 | * THIS FILE IS PART OF THE OggVorbis SOFTWARE CODEC SOURCE CODE. * |
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| 4 | * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
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| 5 | * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
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| 6 | * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
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| 7 | * * |
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| 8 | * THE OggVorbis SOURCE CODE IS (C) COPYRIGHT 1994-2007 * |
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| 9 | * by the Xiph.Org Foundation http://www.xiph.org/ * |
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| 10 | * * |
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| 11 | ******************************************************************** |
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| 12 | |
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| 13 | function: illustrate simple use of chained bitstream and vorbisfile.a |
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| 14 | last mod: $Id: chaining_example.c 13293 2007-07-24 00:09:47Z xiphmont $ |
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| 15 | |
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| 16 | ********************************************************************/ |
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| 17 | |
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| 18 | #include <stdlib.h> |
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| 19 | #include <vorbis/codec.h> |
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| 20 | #include <vorbis/vorbisfile.h> |
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| 21 | |
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| 22 | #ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */ |
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| 23 | #include <io.h> |
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| 24 | #include <fcntl.h> |
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| 25 | #endif |
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| 26 | |
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| 27 | int main(){ |
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| 28 | OggVorbis_File ov; |
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| 29 | int i; |
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| 30 | |
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| 31 | #ifdef _WIN32 /* We need to set stdin to binary mode. Damn windows. */ |
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| 32 | /* Beware the evil ifdef. We avoid these where we can, but this one we |
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| 33 | cannot. Don't add any more, you'll probably go to hell if you do. */ |
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| 34 | _setmode( _fileno( stdin ), _O_BINARY ); |
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| 35 | #endif |
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| 36 | |
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| 37 | /* open the file/pipe on stdin */ |
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| 38 | if(ov_open_callbacks(stdin,&ov,NULL,-1,OV_CALLBACKS_NOCLOSE)<0){ |
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| 39 | printf("Could not open input as an OggVorbis file.\n\n"); |
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| 40 | exit(1); |
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| 41 | } |
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| 42 | |
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| 43 | /* print details about each logical bitstream in the input */ |
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| 44 | if(ov_seekable(&ov)){ |
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| 45 | printf("Input bitstream contained %ld logical bitstream section(s).\n", |
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| 46 | ov_streams(&ov)); |
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| 47 | printf("Total bitstream samples: %ld\n\n", |
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| 48 | (long)ov_pcm_total(&ov,-1)); |
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| 49 | printf("Total bitstream playing time: %ld seconds\n\n", |
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| 50 | (long)ov_time_total(&ov,-1)); |
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| 51 | |
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| 52 | }else{ |
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| 53 | printf("Standard input was not seekable.\n" |
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| 54 | "First logical bitstream information:\n\n"); |
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| 55 | } |
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| 56 | |
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| 57 | for(i=0;i<ov_streams(&ov);i++){ |
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| 58 | vorbis_info *vi=ov_info(&ov,i); |
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| 59 | printf("\tlogical bitstream section %d information:\n",i+1); |
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| 60 | printf("\t\t%ldHz %d channels bitrate %ldkbps serial number=%ld\n", |
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| 61 | vi->rate,vi->channels,ov_bitrate(&ov,i)/1000, |
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| 62 | ov_serialnumber(&ov,i)); |
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| 63 | printf("\t\theader length: %ld bytes\n",(long) |
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| 64 | (ov.dataoffsets[i]-ov.offsets[i])); |
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| 65 | printf("\t\tcompressed length: %ld bytes\n",(long)(ov_raw_total(&ov,i))); |
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| 66 | printf("\t\tplay time: %lds\n",(long)ov_time_total(&ov,i)); |
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| 67 | } |
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| 68 | |
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| 69 | ov_clear(&ov); |
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| 70 | return 0; |
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| 71 | } |
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| 72 | |
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