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 FFmpeg. 7 * 8 * FFmpeg 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 * FFmpeg 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 FFmpeg; 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 33 #include "libavutil/rational.h" 34 35 #include "vlc.h" 36 37 /** Table for conversion between TTBLK and TTMB */ 38 extern const int ff_vc1_ttblk_to_tt[3][8]; 39 40 extern const int ff_vc1_ttfrm_to_tt[4]; 41 42 /** MV P mode - the 5th element is only used for mode 1 */ 43 extern const uint8_t ff_vc1_mv_pmode_table[2][5]; 44 extern const uint8_t ff_vc1_mv_pmode_table2[2][4]; 45 46 extern const int ff_vc1_fps_nr[7], ff_vc1_fps_dr[2]; 47 extern const uint8_t ff_vc1_pquant_table[3][32]; 48 49 /* MBMODE table for interlaced frame P-picture */ 50 extern const uint8_t ff_vc1_mbmode_intfrp[2][15][4]; 51 52 /** @name VC-1 VLC tables and defines 53 * @todo TODO move this into the context 54 */ 55 //@{ 56 #define VC1_BFRACTION_VLC_BITS 7 57 extern VLC ff_vc1_bfraction_vlc; 58 #define VC1_IMODE_VLC_BITS 4 59 extern VLC ff_vc1_imode_vlc; 60 #define VC1_NORM2_VLC_BITS 3 61 extern VLC ff_vc1_norm2_vlc; 62 #define VC1_NORM6_VLC_BITS 9 63 extern VLC ff_vc1_norm6_vlc; 64 /* Could be optimized, one table only needs 8 bits */ 65 #define VC1_TTMB_VLC_BITS 9 //12 66 extern VLC ff_vc1_ttmb_vlc[3]; 67 #define VC1_MV_DIFF_VLC_BITS 9 //15 68 extern VLC ff_vc1_mv_diff_vlc[4]; 69 #define VC1_CBPCY_P_VLC_BITS 9 //14 70 extern VLC ff_vc1_cbpcy_p_vlc[4]; 71 #define VC1_ICBPCY_VLC_BITS 9 72 extern VLC ff_vc1_icbpcy_vlc[8]; 73 #define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6 74 extern VLC ff_vc1_4mv_block_pattern_vlc[4]; 75 #define VC1_2MV_BLOCK_PATTERN_VLC_BITS 3 76 extern VLC ff_vc1_2mv_block_pattern_vlc[4]; 77 #define VC1_TTBLK_VLC_BITS 5 78 extern VLC ff_vc1_ttblk_vlc[3]; 79 #define VC1_SUBBLKPAT_VLC_BITS 6 80 extern VLC ff_vc1_subblkpat_vlc[3]; 81 #define VC1_INTFR_4MV_MBMODE_VLC_BITS 9 82 extern VLC ff_vc1_intfr_4mv_mbmode_vlc[4]; 83 #define VC1_INTFR_NON4MV_MBMODE_VLC_BITS 6 84 extern VLC ff_vc1_intfr_non4mv_mbmode_vlc[4]; 85 #define VC1_IF_MMV_MBMODE_VLC_BITS 5 86 extern VLC ff_vc1_if_mmv_mbmode_vlc[8]; 87 #define VC1_IF_1MV_MBMODE_VLC_BITS 5 88 extern VLC ff_vc1_if_1mv_mbmode_vlc[8]; 89 #define VC1_1REF_MVDATA_VLC_BITS 9 90 extern VLC ff_vc1_1ref_mvdata_vlc[4]; 91 #define VC1_2REF_MVDATA_VLC_BITS 9 92 extern VLC ff_vc1_2ref_mvdata_vlc[8]; 93 94 extern VLC ff_vc1_ac_coeff_table[8]; 95 96 #define VC1_IF_MBMODE_VLC_BITS 5 97 //@} 98 99 #define B_FRACTION_DEN 256 100 101 /* pre-computed scales for all bfractions and base=256 */ 102 extern const int16_t ff_vc1_bfraction_lut[23]; 103 extern const uint8_t ff_vc1_bfraction_bits[23]; 104 extern const uint8_t ff_vc1_bfraction_codes[23]; 105 106 //Same as H.264 107 extern const AVRational ff_vc1_pixel_aspect[16]; 108 109 /* BitPlane IMODE - such a small table... */ 110 extern const uint8_t ff_vc1_imode_codes[7]; 111 extern const uint8_t ff_vc1_imode_bits[7]; 112 113 /* Normal-2 imode */ 114 extern const uint8_t ff_vc1_norm2_codes[4]; 115 extern const uint8_t ff_vc1_norm2_bits[4]; 116 extern const uint16_t ff_vc1_norm6_codes[64]; 117 extern const uint8_t ff_vc1_norm6_bits[64]; 118 /* Normal-6 imode */ 119 extern const uint8_t ff_vc1_norm6_spec[64][5]; 120 121 /* 4MV Block pattern VLC tables */ 122 extern const uint8_t ff_vc1_4mv_block_pattern_codes[4][16]; 123 extern const uint8_t ff_vc1_4mv_block_pattern_bits[4][16]; 124 125 /* 2MV Block pattern VLC tables */ 126 extern const uint8_t ff_vc1_2mv_block_pattern_codes[4][4]; 127 extern const uint8_t ff_vc1_2mv_block_pattern_bits[4][4]; 128 129 extern const uint8_t ff_wmv3_dc_scale_table[32]; 130 131 /* P-Picture CBPCY VLC tables */ 132 extern const uint16_t ff_vc1_cbpcy_p_codes[4][64]; 133 extern const uint8_t ff_vc1_cbpcy_p_bits[4][64]; 134 135 /* Interlaced CBPCY VLC tables (Table 124 - Table 131) */ 136 extern const uint16_t ff_vc1_icbpcy_p_codes[8][63]; 137 extern 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 */ 147 extern const uint16_t ff_vc1_ttmb_codes[3][16]; 148 149 extern const uint8_t ff_vc1_ttmb_bits[3][16]; 150 151 /* TTBLK (Transform Type per Block) tables */ 152 extern const uint8_t ff_vc1_ttblk_codes[3][8]; 153 extern const uint8_t ff_vc1_ttblk_bits[3][8]; 154 155 /* SUBBLKPAT tables, p93-94, reordered */ 156 extern const uint8_t ff_vc1_subblkpat_codes[3][15]; 157 extern const uint8_t ff_vc1_subblkpat_bits[3][15]; 158 159 /* MV differential tables, p265 */ 160 extern const uint16_t ff_vc1_mv_diff_codes[4][73]; 161 extern const uint8_t ff_vc1_mv_diff_bits[4][73]; 162 163 /* Interlaced frame picture MBMODE VLC tables (p. 246, p. 360) */ 164 extern const uint16_t ff_vc1_intfr_4mv_mbmode_codes[4][15]; 165 extern const uint8_t ff_vc1_intfr_4mv_mbmode_bits[4][15]; 166 extern const uint8_t ff_vc1_intfr_non4mv_mbmode_codes[4][9]; 167 extern 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) */ 170 extern const uint8_t ff_vc1_if_mmv_mbmode_codes[8][8]; 171 extern const uint8_t ff_vc1_if_mmv_mbmode_bits[8][8]; 172 extern const uint8_t ff_vc1_if_1mv_mbmode_codes[8][6]; 173 extern const uint8_t ff_vc1_if_1mv_mbmode_bits[8][6]; 174 175 /* Interlaced frame/field picture MVDATA VLC tables */ 176 /* 1-reference tables */ 177 extern const uint32_t ff_vc1_1ref_mvdata_codes[4][72]; 178 extern const uint8_t ff_vc1_1ref_mvdata_bits[4][72]; 179 /* 2-reference tables */ 180 extern const uint32_t ff_vc1_2ref_mvdata_codes[8][126]; 181 extern 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) */ 186 extern const uint8_t ff_vc1_simple_progressive_4x4_zz [16]; 187 extern const uint8_t ff_vc1_adv_progressive_8x4_zz [32]; 188 extern const uint8_t ff_vc1_adv_progressive_4x8_zz [32]; 189 extern const uint8_t ff_vc1_adv_interlaced_8x8_zz [64]; 190 extern const uint8_t ff_vc1_adv_interlaced_8x4_zz [32]; 191 extern const uint8_t ff_vc1_adv_interlaced_4x8_zz [32]; 192 extern const uint8_t ff_vc1_adv_interlaced_4x4_zz [16]; 193 extern const uint8_t ff_vc1_intra_horz_8x8_zz [64]; 194 extern const uint8_t ff_vc1_intra_vert_8x8_zz [64]; 195 196 /* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */ 197 extern const int32_t ff_vc1_dqscale[63]; 198 199 /* P Interlaced field picture MV predictor scaling values (Table 114) */ 200 extern const uint16_t ff_vc1_field_mvpred_scales[2][7][4]; 201 /* B Interlaced field picture backward MV predictor scaling values for first field (Table 115) */ 202 extern const uint16_t ff_vc1_b_field_mvpred_scales[7][4]; 203 204 #define AC_MODES 8 205 206 extern const int ff_vc1_ac_sizes[AC_MODES]; 207 208 #endif /* AVCODEC_VC1DATA_H */ 209