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/********************************************************************
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* THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. *
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* USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS *
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* GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE *
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* IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. *
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* THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 *
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* BY THE Xiph.Org FOUNDATION http://www.xiph.org/ *
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********************************************************************
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function: simple example decoder using vorbisidec
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********************************************************************/
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/* Takes a vorbis bitstream from stdin and writes raw stereo PCM to
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stdout using vorbisfile. Using vorbisfile is much simpler than
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dealing with libvorbis. */
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#include <vorbis/ivorbiscodec.h>
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#include <vorbis/ivorbisfile.h>
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#ifdef _WIN32 /* We need the following two to set stdin/stdout to binary */
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char pcmout[4096]; /* take 4k out of the data segment, not the stack */
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#ifdef _WIN32 /* We need to set stdin/stdout to binary mode. Damn windows. */
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/* Beware the evil ifdef. We avoid these where we can, but this one we
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cannot. Don't add any more, you'll probably go to hell if you do. */
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_setmode( _fileno( stdin ), _O_BINARY );
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_setmode( _fileno( stdout ), _O_BINARY );
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if(ov_open(stdin, &vf, NULL, 0) < 0) {
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fprintf(stderr,"Input does not appear to be an Ogg bitstream.\n");
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/* Throw the comments plus a few lines about the bitstream we're
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char **ptr=ov_comment(&vf,-1)->user_comments;
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vorbis_info *vi=ov_info(&vf,-1);
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fprintf(stderr,"%s\n",*ptr);
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fprintf(stderr,"\nBitstream is %d channel, %ldHz\n",vi->channels,vi->rate);
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fprintf(stderr,"\nDecoded length: %ld samples\n",
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(long)ov_pcm_total(&vf,-1));
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fprintf(stderr,"Encoded by: %s\n\n",ov_comment(&vf,-1)->vendor);
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long ret=ov_read(&vf,pcmout,sizeof(pcmout),¤t_section);
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/* error in the stream. Not a problem, just reporting it in
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case we (the app) cares. In this case, we don't. */
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/* we don't bother dealing with sample rate changes, etc, but
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fwrite(pcmout,1,ret,stdout);
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fprintf(stderr,"Done.\n");