1/* 2 * VC-1 and WMV3 decoder 3 * copyright (c) 2006 Konstantin Shishkov 4 * (c) 2005 anonymous, Alex Beregszaszi, Michael Niedermayer 5 * 6 * This file is part of Libav. 7 * 8 * Libav is free software; you can redistribute it and/or 9 * modify it under the terms of the GNU Lesser General Public 10 * License as published by the Free Software Foundation; either 11 * version 2.1 of the License, or (at your option) any later version. 12 * 13 * Libav is distributed in the hope that it will be useful, 14 * but WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * Lesser General Public License for more details. 17 * 18 * You should have received a copy of the GNU Lesser General Public 19 * License along with Libav; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 21 */ 22 23/** 24 * @file 25 * VC-1 tables. 26 */ 27 28#ifndef AVCODEC_VC1DATA_H 29#define AVCODEC_VC1DATA_H 30 31#include <stdint.h> 32#include "libavutil/rational.h" 33#include "get_bits.h" 34 35/** Table for conversion between TTBLK and TTMB */ 36extern const int ff_vc1_ttblk_to_tt[3][8]; 37 38extern const int ff_vc1_ttfrm_to_tt[4]; 39 40/** MV P mode - the 5th element is only used for mode 1 */ 41extern const uint8_t ff_vc1_mv_pmode_table[2][5]; 42extern const uint8_t ff_vc1_mv_pmode_table2[2][4]; 43 44extern const int ff_vc1_fps_nr[7], ff_vc1_fps_dr[2]; 45extern const uint8_t ff_vc1_pquant_table[3][32]; 46 47/* MBMODE table for interlaced frame P-picture */ 48extern const uint8_t ff_vc1_mbmode_intfrp[2][15][4]; 49 50/** @name VC-1 VLC tables and defines 51 * @todo TODO move this into the context 52 */ 53//@{ 54#define VC1_BFRACTION_VLC_BITS 7 55extern VLC ff_vc1_bfraction_vlc; 56#define VC1_IMODE_VLC_BITS 4 57extern VLC ff_vc1_imode_vlc; 58#define VC1_NORM2_VLC_BITS 3 59extern VLC ff_vc1_norm2_vlc; 60#define VC1_NORM6_VLC_BITS 9 61extern VLC ff_vc1_norm6_vlc; 62/* Could be optimized, one table only needs 8 bits */ 63#define VC1_TTMB_VLC_BITS 9 //12 64extern VLC ff_vc1_ttmb_vlc[3]; 65#define VC1_MV_DIFF_VLC_BITS 9 //15 66extern VLC ff_vc1_mv_diff_vlc[4]; 67#define VC1_CBPCY_P_VLC_BITS 9 //14 68extern VLC ff_vc1_cbpcy_p_vlc[4]; 69#define VC1_ICBPCY_VLC_BITS 9 70extern VLC ff_vc1_icbpcy_vlc[8]; 71#define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6 72extern VLC ff_vc1_4mv_block_pattern_vlc[4]; 73#define VC1_2MV_BLOCK_PATTERN_VLC_BITS 3 74extern VLC ff_vc1_2mv_block_pattern_vlc[4]; 75#define VC1_TTBLK_VLC_BITS 5 76extern VLC ff_vc1_ttblk_vlc[3]; 77#define VC1_SUBBLKPAT_VLC_BITS 6 78extern VLC ff_vc1_subblkpat_vlc[3]; 79#define VC1_INTFR_4MV_MBMODE_VLC_BITS 9 80extern VLC ff_vc1_intfr_4mv_mbmode_vlc[4]; 81#define VC1_INTFR_NON4MV_MBMODE_VLC_BITS 6 82extern VLC ff_vc1_intfr_non4mv_mbmode_vlc[4]; 83#define VC1_IF_MMV_MBMODE_VLC_BITS 5 84extern VLC ff_vc1_if_mmv_mbmode_vlc[8]; 85#define VC1_IF_1MV_MBMODE_VLC_BITS 5 86extern VLC ff_vc1_if_1mv_mbmode_vlc[8]; 87#define VC1_1REF_MVDATA_VLC_BITS 9 88extern VLC ff_vc1_1ref_mvdata_vlc[4]; 89#define VC1_2REF_MVDATA_VLC_BITS 9 90extern VLC ff_vc1_2ref_mvdata_vlc[8]; 91 92extern VLC ff_vc1_ac_coeff_table[8]; 93 94#define VC1_IF_MBMODE_VLC_BITS 5 95//@} 96 97 98/* Denominator used for ff_vc1_bfraction_lut */ 99#define B_FRACTION_DEN 256 100 101/* pre-computed scales for all bfractions and base=256 */ 102extern const int16_t ff_vc1_bfraction_lut[23]; 103extern const uint8_t ff_vc1_bfraction_bits[23]; 104extern const uint8_t ff_vc1_bfraction_codes[23]; 105 106//Same as H.264 107extern const AVRational ff_vc1_pixel_aspect[16]; 108 109/* BitPlane IMODE - such a small table... */ 110extern const uint8_t ff_vc1_imode_codes[7]; 111extern const uint8_t ff_vc1_imode_bits[7]; 112 113/* Normal-2 imode */ 114extern const uint8_t ff_vc1_norm2_codes[4]; 115extern const uint8_t ff_vc1_norm2_bits[4]; 116extern const uint16_t ff_vc1_norm6_codes[64]; 117extern const uint8_t ff_vc1_norm6_bits[64]; 118/* Normal-6 imode */ 119extern const uint8_t ff_vc1_norm6_spec[64][5]; 120 121/* 4MV Block pattern VLC tables */ 122extern const uint8_t ff_vc1_4mv_block_pattern_codes[4][16]; 123extern const uint8_t ff_vc1_4mv_block_pattern_bits[4][16]; 124 125/* 2MV Block pattern VLC tables */ 126extern const uint8_t ff_vc1_2mv_block_pattern_codes[4][4]; 127extern const uint8_t ff_vc1_2mv_block_pattern_bits[4][4]; 128 129extern const uint8_t wmv3_dc_scale_table[32]; 130 131/* P-Picture CBPCY VLC tables */ 132extern const uint16_t ff_vc1_cbpcy_p_codes[4][64]; 133extern const uint8_t ff_vc1_cbpcy_p_bits[4][64]; 134 135/* Interlaced CBPCY VLC tables (Table 124 - Table 131) */ 136extern const uint16_t ff_vc1_icbpcy_p_codes[8][63]; 137extern const uint8_t ff_vc1_icbpcy_p_bits[8][63]; 138 139/* MacroBlock Transform Type: 7.1.3.11, p89 140 * 8x8:B 141 * 8x4:B:btm 8x4:B:top 8x4:B:both, 142 * 4x8:B:right 4x8:B:left 4x8:B:both 143 * 4x4:B 8x8:MB 144 * 8x4:MB:btm 8x4:MB:top 8x4,MB,both 145 * 4x8,MB,right 4x8,MB,left 146 * 4x4,MB */ 147extern const uint16_t ff_vc1_ttmb_codes[3][16]; 148 149extern const uint8_t ff_vc1_ttmb_bits[3][16]; 150 151/* TTBLK (Transform Type per Block) tables */ 152extern const uint8_t ff_vc1_ttblk_codes[3][8]; 153extern const uint8_t ff_vc1_ttblk_bits[3][8]; 154 155/* SUBBLKPAT tables, p93-94, reordered */ 156extern const uint8_t ff_vc1_subblkpat_codes[3][15]; 157extern const uint8_t ff_vc1_subblkpat_bits[3][15]; 158 159/* MV differential tables, p265 */ 160extern const uint16_t ff_vc1_mv_diff_codes[4][73]; 161extern const uint8_t ff_vc1_mv_diff_bits[4][73]; 162 163/* Interlaced frame picture MBMODE VLC tables (p. 246, p. 360) */ 164extern const uint16_t ff_vc1_intfr_4mv_mbmode_codes[4][15]; 165extern const uint8_t ff_vc1_intfr_4mv_mbmode_bits[4][15]; 166extern const uint8_t ff_vc1_intfr_non4mv_mbmode_codes[4][9]; 167extern const uint8_t ff_vc1_intfr_non4mv_mbmode_bits[4][9]; 168 169/* Interlaced field picture MBMODE VLC tables (p. 356 - 11.4.1, 11.4.2) */ 170extern const uint8_t ff_vc1_if_mmv_mbmode_codes[8][8]; 171extern const uint8_t ff_vc1_if_mmv_mbmode_bits[8][8]; 172extern const uint8_t ff_vc1_if_1mv_mbmode_codes[8][6]; 173extern const uint8_t ff_vc1_if_1mv_mbmode_bits[8][6]; 174 175/* Interlaced frame/field picture MVDATA VLC tables */ 176/* 1-reference tables */ 177extern const uint32_t ff_vc1_1ref_mvdata_codes[4][72]; 178extern const uint8_t ff_vc1_1ref_mvdata_bits[4][72]; 179/* 2-reference tables */ 180extern const uint32_t ff_vc1_2ref_mvdata_codes[8][126]; 181extern const uint8_t ff_vc1_2ref_mvdata_bits[8][126]; 182 183/* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */ 184 185/* Scantables/ZZ scan are at 11.9 (p262) and 8.1.1.12 (p10) */ 186extern const int8_t ff_vc1_simple_progressive_4x4_zz [16]; 187extern const int8_t ff_vc1_adv_progressive_8x4_zz [32]; 188extern const int8_t ff_vc1_adv_progressive_4x8_zz [32]; 189extern const int8_t ff_vc1_adv_interlaced_8x8_zz [64]; 190extern const int8_t ff_vc1_adv_interlaced_8x4_zz [32]; 191extern const int8_t ff_vc1_adv_interlaced_4x8_zz [32]; 192extern const int8_t ff_vc1_adv_interlaced_4x4_zz [16]; 193extern const int8_t ff_vc1_intra_horz_8x8_zz [64]; 194extern const int8_t ff_vc1_intra_vert_8x8_zz [64]; 195 196/* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */ 197extern const int32_t ff_vc1_dqscale[63]; 198 199/* P Interlaced field picture MV predictor scaling values (Table 114) */ 200extern const uint16_t vc1_field_mvpred_scales[2][7][4]; 201/* B Interlaced field picture backward MV predictor scaling values for first field (Table 115) */ 202extern const uint16_t vc1_b_field_mvpred_scales[7][4]; 203 204#define AC_MODES 8 205 206extern const int ff_vc1_ac_sizes[AC_MODES]; 207 208#endif /* AVCODEC_VC1DATA_H */ 209