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6147 | serge | 1 | /* |
2 | * VC-1 and WMV3 decoder |
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3 | * copyright (c) 2006 Konstantin Shishkov |
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4 | * (c) 2005 anonymous, Alex Beregszaszi, Michael Niedermayer |
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5 | * |
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6 | * This file is part of FFmpeg. |
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7 | * |
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8 | * FFmpeg is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU Lesser General Public |
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10 | * License as published by the Free Software Foundation; either |
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11 | * version 2.1 of the License, or (at your option) any later version. |
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12 | * |
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13 | * FFmpeg is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
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16 | * Lesser General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU Lesser General Public |
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19 | * License along with FFmpeg; if not, write to the Free Software |
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20 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
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21 | */ |
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22 | |||
23 | /** |
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24 | * @file |
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25 | * VC-1 tables. |
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26 | */ |
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27 | |||
28 | #ifndef AVCODEC_VC1DATA_H |
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29 | #define AVCODEC_VC1DATA_H |
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30 | |||
31 | #include |
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32 | #include "libavutil/rational.h" |
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33 | #include "get_bits.h" |
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34 | |||
35 | /** Table for conversion between TTBLK and TTMB */ |
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36 | extern const int ff_vc1_ttblk_to_tt[3][8]; |
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37 | |||
38 | extern const int ff_vc1_ttfrm_to_tt[4]; |
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39 | |||
40 | /** MV P mode - the 5th element is only used for mode 1 */ |
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41 | extern const uint8_t ff_vc1_mv_pmode_table[2][5]; |
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42 | extern const uint8_t ff_vc1_mv_pmode_table2[2][4]; |
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43 | |||
44 | extern const int ff_vc1_fps_nr[7], ff_vc1_fps_dr[2]; |
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45 | extern const uint8_t ff_vc1_pquant_table[3][32]; |
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46 | |||
47 | /* MBMODE table for interlaced frame P-picture */ |
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48 | extern const uint8_t ff_vc1_mbmode_intfrp[2][15][4]; |
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49 | |||
50 | /** @name VC-1 VLC tables and defines |
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51 | * @todo TODO move this into the context |
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52 | */ |
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53 | //@{ |
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54 | #define VC1_BFRACTION_VLC_BITS 7 |
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55 | extern VLC ff_vc1_bfraction_vlc; |
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56 | #define VC1_IMODE_VLC_BITS 4 |
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57 | extern VLC ff_vc1_imode_vlc; |
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58 | #define VC1_NORM2_VLC_BITS 3 |
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59 | extern VLC ff_vc1_norm2_vlc; |
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60 | #define VC1_NORM6_VLC_BITS 9 |
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61 | extern VLC ff_vc1_norm6_vlc; |
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62 | /* Could be optimized, one table only needs 8 bits */ |
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63 | #define VC1_TTMB_VLC_BITS 9 //12 |
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64 | extern VLC ff_vc1_ttmb_vlc[3]; |
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65 | #define VC1_MV_DIFF_VLC_BITS 9 //15 |
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66 | extern VLC ff_vc1_mv_diff_vlc[4]; |
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67 | #define VC1_CBPCY_P_VLC_BITS 9 //14 |
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68 | extern VLC ff_vc1_cbpcy_p_vlc[4]; |
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69 | #define VC1_ICBPCY_VLC_BITS 9 |
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70 | extern VLC ff_vc1_icbpcy_vlc[8]; |
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71 | #define VC1_4MV_BLOCK_PATTERN_VLC_BITS 6 |
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72 | extern VLC ff_vc1_4mv_block_pattern_vlc[4]; |
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73 | #define VC1_2MV_BLOCK_PATTERN_VLC_BITS 3 |
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74 | extern VLC ff_vc1_2mv_block_pattern_vlc[4]; |
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75 | #define VC1_TTBLK_VLC_BITS 5 |
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76 | extern VLC ff_vc1_ttblk_vlc[3]; |
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77 | #define VC1_SUBBLKPAT_VLC_BITS 6 |
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78 | extern VLC ff_vc1_subblkpat_vlc[3]; |
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79 | #define VC1_INTFR_4MV_MBMODE_VLC_BITS 9 |
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80 | extern VLC ff_vc1_intfr_4mv_mbmode_vlc[4]; |
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81 | #define VC1_INTFR_NON4MV_MBMODE_VLC_BITS 6 |
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82 | extern VLC ff_vc1_intfr_non4mv_mbmode_vlc[4]; |
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83 | #define VC1_IF_MMV_MBMODE_VLC_BITS 5 |
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84 | extern VLC ff_vc1_if_mmv_mbmode_vlc[8]; |
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85 | #define VC1_IF_1MV_MBMODE_VLC_BITS 5 |
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86 | extern VLC ff_vc1_if_1mv_mbmode_vlc[8]; |
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87 | #define VC1_1REF_MVDATA_VLC_BITS 9 |
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88 | extern VLC ff_vc1_1ref_mvdata_vlc[4]; |
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89 | #define VC1_2REF_MVDATA_VLC_BITS 9 |
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90 | extern VLC ff_vc1_2ref_mvdata_vlc[8]; |
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91 | |||
92 | extern VLC ff_vc1_ac_coeff_table[8]; |
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93 | |||
94 | #define VC1_IF_MBMODE_VLC_BITS 5 |
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95 | //@} |
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96 | |||
97 | #define B_FRACTION_DEN 256 |
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98 | |||
99 | /* pre-computed scales for all bfractions and base=256 */ |
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100 | extern const int16_t ff_vc1_bfraction_lut[23]; |
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101 | extern const uint8_t ff_vc1_bfraction_bits[23]; |
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102 | extern const uint8_t ff_vc1_bfraction_codes[23]; |
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103 | |||
104 | //Same as H.264 |
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105 | extern const AVRational ff_vc1_pixel_aspect[16]; |
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106 | |||
107 | /* BitPlane IMODE - such a small table... */ |
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108 | extern const uint8_t ff_vc1_imode_codes[7]; |
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109 | extern const uint8_t ff_vc1_imode_bits[7]; |
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110 | |||
111 | /* Normal-2 imode */ |
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112 | extern const uint8_t ff_vc1_norm2_codes[4]; |
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113 | extern const uint8_t ff_vc1_norm2_bits[4]; |
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114 | extern const uint16_t ff_vc1_norm6_codes[64]; |
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115 | extern const uint8_t ff_vc1_norm6_bits[64]; |
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116 | /* Normal-6 imode */ |
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117 | extern const uint8_t ff_vc1_norm6_spec[64][5]; |
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118 | |||
119 | /* 4MV Block pattern VLC tables */ |
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120 | extern const uint8_t ff_vc1_4mv_block_pattern_codes[4][16]; |
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121 | extern const uint8_t ff_vc1_4mv_block_pattern_bits[4][16]; |
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122 | |||
123 | /* 2MV Block pattern VLC tables */ |
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124 | extern const uint8_t ff_vc1_2mv_block_pattern_codes[4][4]; |
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125 | extern const uint8_t ff_vc1_2mv_block_pattern_bits[4][4]; |
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126 | |||
127 | extern const uint8_t ff_wmv3_dc_scale_table[32]; |
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128 | |||
129 | /* P-Picture CBPCY VLC tables */ |
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130 | extern const uint16_t ff_vc1_cbpcy_p_codes[4][64]; |
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131 | extern const uint8_t ff_vc1_cbpcy_p_bits[4][64]; |
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132 | |||
133 | /* Interlaced CBPCY VLC tables (Table 124 - Table 131) */ |
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134 | extern const uint16_t ff_vc1_icbpcy_p_codes[8][63]; |
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135 | extern const uint8_t ff_vc1_icbpcy_p_bits[8][63]; |
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136 | |||
137 | /* MacroBlock Transform Type: 7.1.3.11, p89 |
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138 | * 8x8:B |
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139 | * 8x4:B:btm 8x4:B:top 8x4:B:both, |
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140 | * 4x8:B:right 4x8:B:left 4x8:B:both |
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141 | * 4x4:B 8x8:MB |
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142 | * 8x4:MB:btm 8x4:MB:top 8x4,MB,both |
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143 | * 4x8,MB,right 4x8,MB,left |
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144 | * 4x4,MB */ |
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145 | extern const uint16_t ff_vc1_ttmb_codes[3][16]; |
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146 | |||
147 | extern const uint8_t ff_vc1_ttmb_bits[3][16]; |
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148 | |||
149 | /* TTBLK (Transform Type per Block) tables */ |
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150 | extern const uint8_t ff_vc1_ttblk_codes[3][8]; |
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151 | extern const uint8_t ff_vc1_ttblk_bits[3][8]; |
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152 | |||
153 | /* SUBBLKPAT tables, p93-94, reordered */ |
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154 | extern const uint8_t ff_vc1_subblkpat_codes[3][15]; |
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155 | extern const uint8_t ff_vc1_subblkpat_bits[3][15]; |
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156 | |||
157 | /* MV differential tables, p265 */ |
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158 | extern const uint16_t ff_vc1_mv_diff_codes[4][73]; |
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159 | extern const uint8_t ff_vc1_mv_diff_bits[4][73]; |
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160 | |||
161 | /* Interlaced frame picture MBMODE VLC tables (p. 246, p. 360) */ |
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162 | extern const uint16_t ff_vc1_intfr_4mv_mbmode_codes[4][15]; |
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163 | extern const uint8_t ff_vc1_intfr_4mv_mbmode_bits[4][15]; |
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164 | extern const uint8_t ff_vc1_intfr_non4mv_mbmode_codes[4][9]; |
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165 | extern const uint8_t ff_vc1_intfr_non4mv_mbmode_bits[4][9]; |
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166 | |||
167 | /* Interlaced field picture MBMODE VLC tables (p. 356 - 11.4.1, 11.4.2) */ |
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168 | extern const uint8_t ff_vc1_if_mmv_mbmode_codes[8][8]; |
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169 | extern const uint8_t ff_vc1_if_mmv_mbmode_bits[8][8]; |
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170 | extern const uint8_t ff_vc1_if_1mv_mbmode_codes[8][6]; |
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171 | extern const uint8_t ff_vc1_if_1mv_mbmode_bits[8][6]; |
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172 | |||
173 | /* Interlaced frame/field picture MVDATA VLC tables */ |
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174 | /* 1-reference tables */ |
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175 | extern const uint32_t ff_vc1_1ref_mvdata_codes[4][72]; |
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176 | extern const uint8_t ff_vc1_1ref_mvdata_bits[4][72]; |
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177 | /* 2-reference tables */ |
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178 | extern const uint32_t ff_vc1_2ref_mvdata_codes[8][126]; |
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179 | extern const uint8_t ff_vc1_2ref_mvdata_bits[8][126]; |
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180 | |||
181 | /* DC differentials low+hi-mo, p217 are the same as in msmpeg4data .h */ |
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182 | |||
183 | /* Scantables/ZZ scan are at 11.9 (p262) and 8.1.1.12 (p10) */ |
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184 | extern const uint8_t ff_vc1_simple_progressive_4x4_zz [16]; |
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185 | extern const uint8_t ff_vc1_adv_progressive_8x4_zz [32]; |
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186 | extern const uint8_t ff_vc1_adv_progressive_4x8_zz [32]; |
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187 | extern const uint8_t ff_vc1_adv_interlaced_8x8_zz [64]; |
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188 | extern const uint8_t ff_vc1_adv_interlaced_8x4_zz [32]; |
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189 | extern const uint8_t ff_vc1_adv_interlaced_4x8_zz [32]; |
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190 | extern const uint8_t ff_vc1_adv_interlaced_4x4_zz [16]; |
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191 | extern const uint8_t ff_vc1_intra_horz_8x8_zz [64]; |
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192 | extern const uint8_t ff_vc1_intra_vert_8x8_zz [64]; |
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193 | |||
194 | /* DQScale as specified in 8.1.3.9 - almost identical to 0x40000/i */ |
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195 | extern const int32_t ff_vc1_dqscale[63]; |
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196 | |||
197 | /* P Interlaced field picture MV predictor scaling values (Table 114) */ |
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198 | extern const uint16_t ff_vc1_field_mvpred_scales[2][7][4]; |
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199 | /* B Interlaced field picture backward MV predictor scaling values for first field (Table 115) */ |
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200 | extern const uint16_t ff_vc1_b_field_mvpred_scales[7][4]; |
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201 | |||
202 | #define AC_MODES 8 |
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203 | |||
204 | extern const int ff_vc1_ac_sizes[AC_MODES]; |
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205 | |||
206 | #endif /* AVCODEC_VC1DATA_H */ |