ffmpeg/libavcodec/vc1data.h

   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 #include "libavutil/rational.h"
  33 #include "get_bits.h"
  34
  35 /** Table for conversion between TTBLK and TTMB */
  36 extern const int ff_vc1_ttblk_to_tt[3][8];
  37
  38 extern const int ff_vc1_ttfrm_to_tt[4];
  39
  40 /** MV P mode - the 5th element is only used for mode 1 */
  41 extern const uint8_t ff_vc1_mv_pmode_table[2][5];
  42 extern const uint8_t ff_vc1_mv_pmode_table2[2][4];
  43
  44 extern const int ff_vc1_fps_nr[7], ff_vc1_fps_dr[2];
  45 extern const uint8_t ff_vc1_pquant_table[3][32];
  46
  47 /* MBMODE table for interlaced frame P-picture */
  48 extern 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
  55 extern VLC ff_vc1_bfraction_vlc;
  56 #define VC1_IMODE_VLC_BITS 4
  57 extern VLC ff_vc1_imode_vlc;
  58 #define VC1_NORM2_VLC_BITS 3
  59 extern VLC ff_vc1_norm2_vlc;
  60 #define VC1_NORM6_VLC_BITS 9
  61 extern VLC ff_vc1_norm6_vlc;
  62 /* Could be optimized, one table only needs 8 bits */
  63 #define VC1_TTMB_VLC_BITS 9 //12
  64 extern VLC ff_vc1_ttmb_vlc[3];
  65 #define VC1_MV_DIFF_VLC_BITS 9 //15
  66 extern VLC ff_vc1_mv_diff_vlc[4];
  67 #define VC1_CBPCY_P_VLC_BITS 9 //14
  68 extern VLC ff_vc1_cbpcy_p_vlc[4];
  69 #define VC1_ICBPCY_VLC_BITS 9
  70 extern VLC ff_vc1_icbpcy_vlc[8];
  71 #define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6
  72 extern VLC ff_vc1_4mv_block_pattern_vlc[4];
  73 #define VC1_2MV_BLOCK_PATTERN_VLC_BITS 3
  74 extern VLC ff_vc1_2mv_block_pattern_vlc[4];
  75 #define VC1_TTBLK_VLC_BITS 5
  76 extern VLC ff_vc1_ttblk_vlc[3];
  77 #define VC1_SUBBLKPAT_VLC_BITS 6
  78 extern VLC ff_vc1_subblkpat_vlc[3];
  79 #define VC1_INTFR_4MV_MBMODE_VLC_BITS 9
  80 extern VLC ff_vc1_intfr_4mv_mbmode_vlc[4];
  81 #define VC1_INTFR_NON4MV_MBMODE_VLC_BITS 6
  82 extern VLC ff_vc1_intfr_non4mv_mbmode_vlc[4];
  83 #define VC1_IF_MMV_MBMODE_VLC_BITS 5
  84 extern VLC ff_vc1_if_mmv_mbmode_vlc[8];
  85 #define VC1_IF_1MV_MBMODE_VLC_BITS 5
  86 extern VLC ff_vc1_if_1mv_mbmode_vlc[8];
  87 #define VC1_1REF_MVDATA_VLC_BITS 9
  88 extern VLC ff_vc1_1ref_mvdata_vlc[4];
  89 #define VC1_2REF_MVDATA_VLC_BITS 9
  90 extern VLC ff_vc1_2ref_mvdata_vlc[8];
  91
  92 extern VLC ff_vc1_ac_coeff_table[8];
  93
  94 #define VC1_IF_MBMODE_VLC_BITS 5
  95 //@}
  96
  97 #define B_FRACTION_DEN  256
  98
  99 /* pre-computed scales for all bfractions and base=256 */
 100 extern const int16_t ff_vc1_bfraction_lut[23];
 101 extern const uint8_t ff_vc1_bfraction_bits[23];
 102 extern const uint8_t ff_vc1_bfraction_codes[23];
 103
 104 //Same as H.264
 105 extern const AVRational ff_vc1_pixel_aspect[16];
 106
 107 /* BitPlane IMODE - such a small table... */
 108 extern const uint8_t ff_vc1_imode_codes[7];
 109 extern const uint8_t ff_vc1_imode_bits[7];
 110
 111 /* Normal-2 imode */
 112 extern const uint8_t ff_vc1_norm2_codes[4];
 113 extern const uint8_t ff_vc1_norm2_bits[4];
 114 extern const uint16_t ff_vc1_norm6_codes[64];
 115 extern const uint8_t ff_vc1_norm6_bits[64];
 116 /* Normal-6 imode */
 117 extern const uint8_t ff_vc1_norm6_spec[64][5];
 118
 119 /* 4MV Block pattern VLC tables */
 120 extern const uint8_t ff_vc1_4mv_block_pattern_codes[4][16];
 121 extern const uint8_t ff_vc1_4mv_block_pattern_bits[4][16];
 122
 123 /* 2MV Block pattern VLC tables */
 124 extern const uint8_t ff_vc1_2mv_block_pattern_codes[4][4];
 125 extern const uint8_t ff_vc1_2mv_block_pattern_bits[4][4];
 126
 127 extern const uint8_t ff_wmv3_dc_scale_table[32];
 128
 129 /* P-Picture CBPCY VLC tables */
 130 extern const uint16_t ff_vc1_cbpcy_p_codes[4][64];
 131 extern const uint8_t ff_vc1_cbpcy_p_bits[4][64];
 132
 133 /* Interlaced CBPCY VLC tables (Table 124 - Table 131) */
 134 extern const uint16_t ff_vc1_icbpcy_p_codes[8][63];
 135 extern const uint8_t ff_vc1_icbpcy_p_bits[8][63];
 136
 137 /* MacroBlock Transform Type: 7.1.3.11, p89
 138  * 8x8:B
 139  * 8x4:B:btm  8x4:B:top  8x4:B:both,
 140  * 4x8:B:right  4x8:B:left  4x8:B:both
 141  * 4x4:B  8x8:MB
 142  * 8x4:MB:btm  8x4:MB:top  8x4,MB,both
 143  * 4x8,MB,right  4x8,MB,left
 144  * 4x4,MB                               */
 145 extern const uint16_t ff_vc1_ttmb_codes[3][16];
 146
 147 extern const uint8_t ff_vc1_ttmb_bits[3][16];
 148
 149 /* TTBLK (Transform Type per Block) tables */
 150 extern const uint8_t ff_vc1_ttblk_codes[3][8];
 151 extern const uint8_t ff_vc1_ttblk_bits[3][8];
 152
 153 /* SUBBLKPAT tables, p93-94, reordered */
 154 extern const uint8_t ff_vc1_subblkpat_codes[3][15];
 155 extern const uint8_t ff_vc1_subblkpat_bits[3][15];
 156
 157 /* MV differential tables, p265 */
 158 extern const uint16_t ff_vc1_mv_diff_codes[4][73];
 159 extern const uint8_t ff_vc1_mv_diff_bits[4][73];
 160
 161 /* Interlaced frame picture MBMODE VLC tables (p. 246, p. 360) */
 162 extern const uint16_t ff_vc1_intfr_4mv_mbmode_codes[4][15];
 163 extern const uint8_t ff_vc1_intfr_4mv_mbmode_bits[4][15];
 164 extern const uint8_t ff_vc1_intfr_non4mv_mbmode_codes[4][9];
 165 extern const uint8_t ff_vc1_intfr_non4mv_mbmode_bits[4][9];
 166
 167 /* Interlaced field picture MBMODE VLC tables (p. 356 - 11.4.1, 11.4.2) */
 168 extern const uint8_t ff_vc1_if_mmv_mbmode_codes[8][8];
 169 extern const uint8_t ff_vc1_if_mmv_mbmode_bits[8][8];
 170 extern const uint8_t ff_vc1_if_1mv_mbmode_codes[8][6];
 171 extern const uint8_t ff_vc1_if_1mv_mbmode_bits[8][6];
 172
 173 /* Interlaced frame/field picture MVDATA VLC tables */
 174 /* 1-reference tables */
 175 extern const uint32_t ff_vc1_1ref_mvdata_codes[4][72];
 176 extern const uint8_t ff_vc1_1ref_mvdata_bits[4][72];
 177 /* 2-reference tables */
 178 extern const uint32_t ff_vc1_2ref_mvdata_codes[8][126];
 179 extern const uint8_t ff_vc1_2ref_mvdata_bits[8][126];
 180
 181 /* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */
 182
 183 /* Scantables/ZZ scan are at 11.9 (p262) and 8.1.1.12 (p10) */
 184 extern const uint8_t ff_vc1_simple_progressive_4x4_zz [16];
 185 extern const uint8_t ff_vc1_adv_progressive_8x4_zz [32];
 186 extern const uint8_t ff_vc1_adv_progressive_4x8_zz [32];
 187 extern const uint8_t ff_vc1_adv_interlaced_8x8_zz [64];
 188 extern const uint8_t ff_vc1_adv_interlaced_8x4_zz [32];
 189 extern const uint8_t ff_vc1_adv_interlaced_4x8_zz [32];
 190 extern const uint8_t ff_vc1_adv_interlaced_4x4_zz [16];
 191 extern const uint8_t ff_vc1_intra_horz_8x8_zz [64];
 192 extern const uint8_t ff_vc1_intra_vert_8x8_zz [64];
 193
 194 /* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */
 195 extern const int32_t ff_vc1_dqscale[63];
 196
 197 /* P Interlaced field picture MV predictor scaling values (Table 114) */
 198 extern const uint16_t ff_vc1_field_mvpred_scales[2][7][4];
 199 /* B Interlaced field picture backward MV predictor scaling values for first field (Table 115) */
 200 extern const uint16_t ff_vc1_b_field_mvpred_scales[7][4];
 201
 202 #define AC_MODES 8
 203
 204 extern const int ff_vc1_ac_sizes[AC_MODES];
 205
 206 #endif /* AVCODEC_VC1DATA_H */