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105 lines
3.1 KiB
C
105 lines
3.1 KiB
C
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/********************************************************************
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* *
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* THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. *
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* *
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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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* *
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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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********************************************************************
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function: libvorbis codec headers
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********************************************************************/
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#ifndef _vorbis_codec_h_
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#define _vorbis_codec_h_
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#ifdef __cplusplus
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extern "C"
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{
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#endif /* __cplusplus */
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#include "ogg.h"
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struct vorbis_dsp_state;
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typedef struct vorbis_dsp_state vorbis_dsp_state;
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typedef struct vorbis_info{
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int version;
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int channels;
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long rate;
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/* The below bitrate declarations are *hints*.
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Combinations of the three values carry the following implications:
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all three set to the same value:
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implies a fixed rate bitstream
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only nominal set:
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implies a VBR stream that averages the nominal bitrate. No hard
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upper/lower limit
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upper and or lower set:
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implies a VBR bitstream that obeys the bitrate limits. nominal
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may also be set to give a nominal rate.
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none set:
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the coder does not care to speculate.
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*/
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long bitrate_upper;
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long bitrate_nominal;
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long bitrate_lower;
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long bitrate_window;
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void *codec_setup;
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} vorbis_info;
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typedef struct vorbis_comment{
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char **user_comments;
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int *comment_lengths;
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int comments;
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char *vendor;
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} vorbis_comment;
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/* Vorbis PRIMITIVES: general ***************************************/
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extern void vorbis_info_init(vorbis_info *vi);
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extern void vorbis_info_clear(vorbis_info *vi);
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extern int vorbis_info_blocksize(vorbis_info *vi,int zo);
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extern void vorbis_comment_init(vorbis_comment *vc);
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extern void vorbis_comment_add(vorbis_comment *vc, char *comment);
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extern void vorbis_comment_add_tag(vorbis_comment *vc,
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char *tag, char *contents);
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extern char *vorbis_comment_query(vorbis_comment *vc, char *tag, int count);
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extern int vorbis_comment_query_count(vorbis_comment *vc, char *tag);
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extern void vorbis_comment_clear(vorbis_comment *vc);
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/* Vorbis ERRORS and return codes ***********************************/
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#define OV_FALSE -1
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#define OV_EOF -2
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#define OV_HOLE -3
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#define OV_EREAD -128
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#define OV_EFAULT -129
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#define OV_EIMPL -130
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#define OV_EINVAL -131
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#define OV_ENOTVORBIS -132
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#define OV_EBADHEADER -133
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#define OV_EVERSION -134
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#define OV_ENOTAUDIO -135
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#define OV_EBADPACKET -136
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#define OV_EBADLINK -137
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#define OV_ENOSEEK -138
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#ifdef __cplusplus
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}
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#endif /* __cplusplus */
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#endif
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