media/libtremor/lib/codec_internal.h@6474c204b198 (annotated)
media/libtremor/lib/codec_internal.h
Wed, 31 Dec 2014 06:09:35 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 06:09:35 +0100
- changeset 0
- 6474c204b198
- permissions
- -rw-r--r--
Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.
| michael@0 | 1 | /******************************************************************** |
| michael@0 | 2 | * * |
| michael@0 | 3 | * THIS FILE IS PART OF THE OggVorbis 'TREMOR' CODEC SOURCE CODE. * |
| michael@0 | 4 | * * |
| michael@0 | 5 | * USE, DISTRIBUTION AND REPRODUCTION OF THIS LIBRARY SOURCE IS * |
| michael@0 | 6 | * GOVERNED BY A BSD-STYLE SOURCE LICENSE INCLUDED WITH THIS SOURCE * |
| michael@0 | 7 | * IN 'COPYING'. PLEASE READ THESE TERMS BEFORE DISTRIBUTING. * |
| michael@0 | 8 | * * |
| michael@0 | 9 | * THE OggVorbis 'TREMOR' SOURCE CODE IS (C) COPYRIGHT 1994-2002 * |
| michael@0 | 10 | * BY THE Xiph.Org FOUNDATION http://www.xiph.org/ * |
| michael@0 | 11 | * * |
| michael@0 | 12 | ******************************************************************** |
| michael@0 | 13 | |
| michael@0 | 14 | function: libvorbis codec headers |
| michael@0 | 15 | |
| michael@0 | 16 | ********************************************************************/ |
| michael@0 | 17 | |
| michael@0 | 18 | #ifndef _V_CODECI_H_ |
| michael@0 | 19 | #define _V_CODECI_H_ |
| michael@0 | 20 | |
| michael@0 | 21 | #include "codebook.h" |
| michael@0 | 22 | |
| michael@0 | 23 | typedef void vorbis_look_mapping; |
| michael@0 | 24 | typedef void vorbis_look_floor; |
| michael@0 | 25 | typedef void vorbis_look_residue; |
| michael@0 | 26 | typedef void vorbis_look_transform; |
| michael@0 | 27 | |
| michael@0 | 28 | /* mode ************************************************************/ |
| michael@0 | 29 | typedef struct { |
| michael@0 | 30 | int blockflag; |
| michael@0 | 31 | int windowtype; |
| michael@0 | 32 | int transformtype; |
| michael@0 | 33 | int mapping; |
| michael@0 | 34 | } vorbis_info_mode; |
| michael@0 | 35 | |
| michael@0 | 36 | typedef void vorbis_info_floor; |
| michael@0 | 37 | typedef void vorbis_info_residue; |
| michael@0 | 38 | typedef void vorbis_info_mapping; |
| michael@0 | 39 | |
| michael@0 | 40 | typedef struct private_state { |
| michael@0 | 41 | /* local lookup storage */ |
| michael@0 | 42 | const void *window[2]; |
| michael@0 | 43 | |
| michael@0 | 44 | /* backend lookups are tied to the mode, not the backend or naked mapping */ |
| michael@0 | 45 | int modebits; |
| michael@0 | 46 | vorbis_look_mapping **mode; |
| michael@0 | 47 | |
| michael@0 | 48 | ogg_int64_t sample_count; |
| michael@0 | 49 | |
| michael@0 | 50 | } private_state; |
| michael@0 | 51 | |
| michael@0 | 52 | /* codec_setup_info contains all the setup information specific to the |
| michael@0 | 53 | specific compression/decompression mode in progress (eg, |
| michael@0 | 54 | psychoacoustic settings, channel setup, options, codebook |
| michael@0 | 55 | etc). |
| michael@0 | 56 | *********************************************************************/ |
| michael@0 | 57 | |
| michael@0 | 58 | typedef struct codec_setup_info { |
| michael@0 | 59 | |
| michael@0 | 60 | /* Vorbis supports only short and long blocks, but allows the |
| michael@0 | 61 | encoder to choose the sizes */ |
| michael@0 | 62 | |
| michael@0 | 63 | long blocksizes[2]; |
| michael@0 | 64 | |
| michael@0 | 65 | /* modes are the primary means of supporting on-the-fly different |
| michael@0 | 66 | blocksizes, different channel mappings (LR or M/A), |
| michael@0 | 67 | different residue backends, etc. Each mode consists of a |
| michael@0 | 68 | blocksize flag and a mapping (along with the mapping setup */ |
| michael@0 | 69 | |
| michael@0 | 70 | int modes; |
| michael@0 | 71 | int maps; |
| michael@0 | 72 | int times; |
| michael@0 | 73 | int floors; |
| michael@0 | 74 | int residues; |
| michael@0 | 75 | int books; |
| michael@0 | 76 | |
| michael@0 | 77 | vorbis_info_mode *mode_param[64]; |
| michael@0 | 78 | int map_type[64]; |
| michael@0 | 79 | vorbis_info_mapping *map_param[64]; |
| michael@0 | 80 | int time_type[64]; |
| michael@0 | 81 | int floor_type[64]; |
| michael@0 | 82 | vorbis_info_floor *floor_param[64]; |
| michael@0 | 83 | int residue_type[64]; |
| michael@0 | 84 | vorbis_info_residue *residue_param[64]; |
| michael@0 | 85 | static_codebook *book_param[256]; |
| michael@0 | 86 | codebook *fullbooks; |
| michael@0 | 87 | |
| michael@0 | 88 | int passlimit[32]; /* iteration limit per couple/quant pass */ |
| michael@0 | 89 | int coupling_passes; |
| michael@0 | 90 | } codec_setup_info; |
| michael@0 | 91 | |
| michael@0 | 92 | #endif |
