author | orange.hg@gmail.com |
Sat, 25 Jun 2011 15:10:08 +0000 | |
changeset 5312 | 85df559b85cd |
parent 5170 | f7e49eff3708 |
permissions | -rw-r--r-- |
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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 _V_CODECI_H_ |
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#define _V_CODECI_H_ |
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#include "codebook.h" |
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typedef void vorbis_look_mapping; |
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typedef void vorbis_look_floor; |
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typedef void vorbis_look_residue; |
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typedef void vorbis_look_transform; |
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/* mode ************************************************************/ |
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typedef struct { |
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int blockflag; |
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int windowtype; |
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int transformtype; |
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int mapping; |
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} vorbis_info_mode; |
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typedef void vorbis_info_floor; |
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typedef void vorbis_info_residue; |
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typedef void vorbis_info_mapping; |
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typedef struct private_state { |
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/* local lookup storage */ |
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const void *window[2]; |
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/* backend lookups are tied to the mode, not the backend or naked mapping */ |
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int modebits; |
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vorbis_look_mapping **mode; |
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ogg_int64_t sample_count; |
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} private_state; |
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/* codec_setup_info contains all the setup information specific to the |
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specific compression/decompression mode in progress (eg, |
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psychoacoustic settings, channel setup, options, codebook |
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etc). |
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*********************************************************************/ |
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typedef struct codec_setup_info { |
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/* Vorbis supports only short and long blocks, but allows the |
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encoder to choose the sizes */ |
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long blocksizes[2]; |
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/* modes are the primary means of supporting on-the-fly different |
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blocksizes, different channel mappings (LR or M/A), |
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different residue backends, etc. Each mode consists of a |
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blocksize flag and a mapping (along with the mapping setup */ |
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int modes; |
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int maps; |
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int times; |
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int floors; |
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int residues; |
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int books; |
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vorbis_info_mode *mode_param[64]; |
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int map_type[64]; |
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vorbis_info_mapping *map_param[64]; |
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int time_type[64]; |
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int floor_type[64]; |
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vorbis_info_floor *floor_param[64]; |
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int residue_type[64]; |
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vorbis_info_residue *residue_param[64]; |
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static_codebook *book_param[256]; |
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codebook *fullbooks; |
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int passlimit[32]; /* iteration limit per couple/quant pass */ |
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int coupling_passes; |
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} codec_setup_info; |
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#endif |