mirror of https://github.com/FFmpeg/FFmpeg.git
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
148 lines
4.7 KiB
148 lines
4.7 KiB
/* |
|
* VC-1 and WMV3 decoder |
|
* copyright (c) 2006 Konstantin Shishkov |
|
* (c) 2005 anonymous, Alex Beregszaszi, Michael Niedermayer |
|
* |
|
* This file is part of FFmpeg. |
|
* |
|
* FFmpeg is free software; you can redistribute it and/or |
|
* modify it under the terms of the GNU Lesser General Public |
|
* License as published by the Free Software Foundation; either |
|
* version 2.1 of the License, or (at your option) any later version. |
|
* |
|
* FFmpeg is distributed in the hope that it will be useful, |
|
* but WITHOUT ANY WARRANTY; without even the implied warranty of |
|
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
|
* Lesser General Public License for more details. |
|
* |
|
* You should have received a copy of the GNU Lesser General Public |
|
* License along with FFmpeg; if not, write to the Free Software |
|
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
|
*/ |
|
|
|
/** |
|
* @file |
|
* VC-1 tables. |
|
*/ |
|
|
|
#ifndef AVCODEC_VC1DATA_H |
|
#define AVCODEC_VC1DATA_H |
|
|
|
#include <stdint.h> |
|
#include "libavutil/rational.h" |
|
#include "get_bits.h" |
|
|
|
/** Table for conversion between TTBLK and TTMB */ |
|
extern const int ff_vc1_ttblk_to_tt[3][8]; |
|
|
|
extern const int ff_vc1_ttfrm_to_tt[4]; |
|
|
|
/** MV P mode - the 5th element is only used for mode 1 */ |
|
extern const uint8_t ff_vc1_mv_pmode_table[2][5]; |
|
extern const uint8_t ff_vc1_mv_pmode_table2[2][4]; |
|
|
|
extern const int ff_vc1_fps_nr[5], ff_vc1_fps_dr[2]; |
|
extern const uint8_t ff_vc1_pquant_table[3][32]; |
|
|
|
/** @name VC-1 VLC tables and defines |
|
* @todo TODO move this into the context |
|
*/ |
|
//@{ |
|
#define VC1_BFRACTION_VLC_BITS 7 |
|
extern VLC ff_vc1_bfraction_vlc; |
|
#define VC1_IMODE_VLC_BITS 4 |
|
extern VLC ff_vc1_imode_vlc; |
|
#define VC1_NORM2_VLC_BITS 3 |
|
extern VLC ff_vc1_norm2_vlc; |
|
#define VC1_NORM6_VLC_BITS 9 |
|
extern VLC ff_vc1_norm6_vlc; |
|
/* Could be optimized, one table only needs 8 bits */ |
|
#define VC1_TTMB_VLC_BITS 9 //12 |
|
extern VLC ff_vc1_ttmb_vlc[3]; |
|
#define VC1_MV_DIFF_VLC_BITS 9 //15 |
|
extern VLC ff_vc1_mv_diff_vlc[4]; |
|
#define VC1_CBPCY_P_VLC_BITS 9 //14 |
|
extern VLC ff_vc1_cbpcy_p_vlc[4]; |
|
#define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6 |
|
extern VLC ff_vc1_4mv_block_pattern_vlc[4]; |
|
#define VC1_TTBLK_VLC_BITS 5 |
|
extern VLC ff_vc1_ttblk_vlc[3]; |
|
#define VC1_SUBBLKPAT_VLC_BITS 6 |
|
extern VLC ff_vc1_subblkpat_vlc[3]; |
|
|
|
extern VLC ff_vc1_ac_coeff_table[8]; |
|
//@} |
|
|
|
|
|
/* Denominator used for ff_vc1_bfraction_lut */ |
|
#define B_FRACTION_DEN 256 |
|
|
|
/* pre-computed scales for all bfractions and base=256 */ |
|
extern const int16_t ff_vc1_bfraction_lut[23]; |
|
extern const uint8_t ff_vc1_bfraction_bits[23]; |
|
extern const uint8_t ff_vc1_bfraction_codes[23]; |
|
|
|
//Same as H.264 |
|
extern const AVRational ff_vc1_pixel_aspect[16]; |
|
|
|
/* BitPlane IMODE - such a small table... */ |
|
extern const uint8_t ff_vc1_imode_codes[7]; |
|
extern const uint8_t ff_vc1_imode_bits[7]; |
|
|
|
/* Normal-2 imode */ |
|
extern const uint8_t ff_vc1_norm2_codes[4]; |
|
extern const uint8_t ff_vc1_norm2_bits[4]; |
|
extern const uint16_t ff_vc1_norm6_codes[64]; |
|
extern const uint8_t ff_vc1_norm6_bits[64]; |
|
/* Normal-6 imode */ |
|
extern const uint8_t ff_vc1_norm6_spec[64][5]; |
|
|
|
/* 4MV Block pattern VLC tables */ |
|
extern const uint8_t ff_vc1_4mv_block_pattern_codes[4][16]; |
|
extern const uint8_t ff_vc1_4mv_block_pattern_bits[4][16]; |
|
|
|
extern const uint8_t wmv3_dc_scale_table[32]; |
|
|
|
/* P-Picture CBPCY VLC tables */ |
|
extern const uint16_t ff_vc1_cbpcy_p_codes[4][64]; |
|
extern const uint8_t ff_vc1_cbpcy_p_bits[4][64]; |
|
|
|
/* MacroBlock Transform Type: 7.1.3.11, p89 |
|
* 8x8:B |
|
* 8x4:B:btm 8x4:B:top 8x4:B:both, |
|
* 4x8:B:right 4x8:B:left 4x8:B:both |
|
* 4x4:B 8x8:MB |
|
* 8x4:MB:btm 8x4:MB:top 8x4,MB,both |
|
* 4x8,MB,right 4x8,MB,left |
|
* 4x4,MB */ |
|
extern const uint16_t ff_vc1_ttmb_codes[3][16]; |
|
|
|
extern const uint8_t ff_vc1_ttmb_bits[3][16]; |
|
|
|
/* TTBLK (Transform Type per Block) tables */ |
|
extern const uint8_t ff_vc1_ttblk_codes[3][8]; |
|
extern const uint8_t ff_vc1_ttblk_bits[3][8]; |
|
|
|
/* SUBBLKPAT tables, p93-94, reordered */ |
|
extern const uint8_t ff_vc1_subblkpat_codes[3][15]; |
|
extern const uint8_t ff_vc1_subblkpat_bits[3][15]; |
|
|
|
/* MV differential tables, p265 */ |
|
extern const uint16_t ff_vc1_mv_diff_codes[4][73]; |
|
extern const uint8_t ff_vc1_mv_diff_bits[4][73]; |
|
|
|
/* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */ |
|
|
|
/* Scantables/ZZ scan are at 11.9 (p262) and 8.1.1.12 (p10) */ |
|
extern const int8_t ff_vc1_simple_progressive_4x4_zz [16]; |
|
extern const int8_t ff_vc1_adv_progressive_8x4_zz [32]; |
|
extern const int8_t ff_vc1_adv_progressive_4x8_zz [32]; |
|
extern const int8_t ff_vc1_adv_interlaced_8x8_zz [64]; |
|
extern const int8_t ff_vc1_adv_interlaced_8x4_zz [32]; |
|
extern const int8_t ff_vc1_adv_interlaced_4x8_zz [32]; |
|
extern const int8_t ff_vc1_adv_interlaced_4x4_zz [16]; |
|
|
|
/* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */ |
|
extern const int32_t ff_vc1_dqscale[63]; |
|
|
|
#endif /* AVCODEC_VC1DATA_H */
|
|
|