1 | /* The copyright in this software is being made available under the BSD |
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2 | * License, included below. This software may be subject to other third party |
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3 | * and contributor rights, including patent rights, and no such rights are |
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4 | * granted under this license. |
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5 | * |
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6 | * Copyright (c) 2010-2012, ITU/ISO/IEC |
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7 | * All rights reserved. |
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8 | * |
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9 | * Redistribution and use in source and binary forms, with or without |
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10 | * modification, are permitted provided that the following conditions are met: |
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11 | * |
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12 | * * Redistributions of source code must retain the above copyright notice, |
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13 | * this list of conditions and the following disclaimer. |
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14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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15 | * this list of conditions and the following disclaimer in the documentation |
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16 | * and/or other materials provided with the distribution. |
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17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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18 | * be used to endorse or promote products derived from this software without |
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19 | * specific prior written permission. |
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20 | * |
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21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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32 | */ |
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33 | |
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34 | /** \file ContextTables.h |
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35 | \brief Defines constants and tables for SBAC |
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36 | \todo number of context models is not matched to actual use, should be fixed |
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37 | */ |
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38 | |
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39 | #ifndef __CONTEXTTABLES__ |
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40 | #define __CONTEXTTABLES__ |
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41 | |
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42 | //! \ingroup TLibCommon |
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43 | //! \{ |
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44 | |
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45 | // ==================================================================================================================== |
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46 | // Constants |
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47 | // ==================================================================================================================== |
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48 | |
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49 | #define MAX_NUM_CTX_MOD 512 ///< maximum number of supported contexts |
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50 | |
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51 | #define NUM_SPLIT_FLAG_CTX 3 ///< number of context models for split flag |
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52 | #define NUM_SKIP_FLAG_CTX 3 ///< number of context models for skip flag |
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53 | |
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54 | #define NUM_MERGE_FLAG_EXT_CTX 1 ///< number of context models for merge flag of merge extended |
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55 | #define NUM_MERGE_IDX_EXT_CTX 1 ///< number of context models for merge index of merge extended |
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56 | |
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57 | #define NUM_ALF_CTRL_FLAG_CTX 1 ///< number of context models for ALF control flag |
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58 | #define NUM_PART_SIZE_CTX 4 ///< number of context models for partition size |
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59 | #define NUM_CU_AMP_CTX 1 ///< number of context models for partition size (AMP) |
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60 | #define NUM_PRED_MODE_CTX 1 ///< number of context models for prediction mode |
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61 | |
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62 | #define NUM_ADI_CTX 1 ///< number of context models for intra prediction |
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63 | |
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64 | #define NUM_CHROMA_PRED_CTX 2 ///< number of context models for intra prediction (chroma) |
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65 | #define NUM_INTER_DIR_CTX 5 ///< number of context models for inter prediction direction |
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66 | #define NUM_MV_RES_CTX 2 ///< number of context models for motion vector difference |
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67 | |
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68 | #if REF_IDX_BYPASS |
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69 | #define NUM_REF_NO_CTX 2 ///< number of context models for reference index |
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70 | #else |
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71 | #define NUM_REF_NO_CTX 4 ///< number of context models for reference index |
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72 | #endif |
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73 | #if TRANS_SPLIT_FLAG_CTX_REDUCTION |
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74 | #define NUM_TRANS_SUBDIV_FLAG_CTX 3 ///< number of context models for transform subdivision flags |
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75 | #else |
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76 | #define NUM_TRANS_SUBDIV_FLAG_CTX 10 ///< number of context models for transform subdivision flags |
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77 | #endif |
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78 | #define NUM_QT_CBF_CTX 5 ///< number of context models for QT CBF |
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79 | #define NUM_QT_ROOT_CBF_CTX 1 ///< number of context models for QT ROOT CBF |
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80 | #define NUM_DELTA_QP_CTX 3 ///< number of context models for dQP |
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81 | |
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82 | #define NUM_SIG_CG_FLAG_CTX 2 ///< number of context models for MULTI_LEVEL_SIGNIFICANCE |
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83 | |
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84 | #if REMOVAL_8x2_2x8_CG |
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85 | #define NUM_SIG_FLAG_CTX 42 ///< number of context models for sig flag |
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86 | #define NUM_SIG_FLAG_CTX_LUMA 27 ///< number of context models for luma sig flag |
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87 | #define NUM_SIG_FLAG_CTX_CHROMA 15 ///< number of context models for chroma sig flag |
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88 | #else |
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89 | #define NUM_SIG_FLAG_CTX 45 ///< number of context models for sig flag |
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90 | #define NUM_SIG_FLAG_CTX_LUMA 24 ///< number of context models for luma sig flag |
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91 | #define NUM_SIG_FLAG_CTX_CHROMA 21 ///< number of context models for chroma sig flag |
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92 | #endif |
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93 | |
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94 | #define NUM_CTX_LAST_FLAG_XY 15 ///< number of context models for last coefficient position |
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95 | |
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96 | #define NUM_ONE_FLAG_CTX 24 ///< number of context models for greater than 1 flag |
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97 | #define NUM_ONE_FLAG_CTX_LUMA 16 ///< number of context models for greater than 1 flag of luma |
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98 | #define NUM_ONE_FLAG_CTX_CHROMA 8 ///< number of context models for greater than 1 flag of chroma |
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99 | #define NUM_ABS_FLAG_CTX 6 ///< number of context models for greater than 2 flag |
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100 | #define NUM_ABS_FLAG_CTX_LUMA 4 ///< number of context models for greater than 2 flag of luma |
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101 | #define NUM_ABS_FLAG_CTX_CHROMA 2 ///< number of context models for greater than 2 flag of chroma |
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102 | |
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103 | #define NUM_MVP_IDX_CTX 2 ///< number of context models for MVP index |
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104 | |
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105 | #define NUM_ALF_FLAG_CTX 1 ///< number of context models for ALF flag |
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106 | #define NUM_ALF_UVLC_CTX 2 ///< number of context models for ALF UVLC (filter length) |
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107 | #define NUM_ALF_SVLC_CTX 3 ///< number of context models for ALF SVLC (filter coeff.) |
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108 | #if !SAO_ABS_BY_PASS |
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109 | #define NUM_SAO_UVLC_CTX 2 ///< number of context models for SAO UVLC |
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110 | #endif |
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111 | #if SAO_MERGE_ONE_CTX |
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112 | #define NUM_SAO_MERGE_FLAG_CTX 1 ///< number of context models for SAO merge flags |
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113 | #else |
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114 | #if SAO_SINGLE_MERGE |
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115 | #define NUM_SAO_MERGE_LEFT_FLAG_CTX 1 ///< number of context models for SAO Merge-Left flag |
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116 | #else |
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117 | #define NUM_SAO_MERGE_LEFT_FLAG_CTX 3 ///< number of context models for AO SVLC (filter coeff.) |
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118 | #endif |
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119 | #define NUM_SAO_MERGE_UP_FLAG_CTX 1 ///< number of context models for AO SVLC (filter coeff.) |
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120 | #endif |
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121 | #if SAO_TYPE_CODING |
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122 | #define NUM_SAO_TYPE_IDX_CTX 1 ///< number of context models for SAO type index |
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123 | #else |
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124 | #define NUM_SAO_TYPE_IDX_CTX 2 ///< number of context models for AO SVLC (filter coeff.) |
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125 | #endif |
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126 | |
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127 | #if INTRA_BL |
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128 | #define NUM_INTRA_BL_PRED_CTX 3 |
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129 | #endif |
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130 | |
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131 | #define NUM_TRANSFORMSKIP_FLAG_CTX 1 ///< number of context models for transform skipping |
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132 | #define NUM_CU_TRANSQUANT_BYPASS_FLAG_CTX 1 |
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133 | #define CNU 154 ///< dummy initialization value for unused context models 'Context model Not Used' |
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134 | |
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135 | // ==================================================================================================================== |
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136 | // Tables |
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137 | // ==================================================================================================================== |
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138 | |
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139 | // initial probability for cu_transquant_bypass flag |
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140 | static const UChar |
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141 | INIT_CU_TRANSQUANT_BYPASS_FLAG[3][NUM_CU_TRANSQUANT_BYPASS_FLAG_CTX] = |
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142 | { |
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143 | { 154 }, |
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144 | { 154 }, |
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145 | { 154 }, |
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146 | }; |
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147 | |
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148 | // initial probability for split flag |
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149 | static const UChar |
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150 | INIT_SPLIT_FLAG[3][NUM_SPLIT_FLAG_CTX] = |
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151 | { |
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152 | { 107, 139, 126, }, |
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153 | { 107, 139, 126, }, |
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154 | { 139, 141, 157, }, |
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155 | }; |
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156 | |
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157 | static const UChar |
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158 | INIT_SKIP_FLAG[3][NUM_SKIP_FLAG_CTX] = |
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159 | { |
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160 | { 197, 185, 201, }, |
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161 | { 197, 185, 201, }, |
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162 | { CNU, CNU, CNU, }, |
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163 | }; |
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164 | |
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165 | static const UChar |
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166 | INIT_ALF_CTRL_FLAG[3][NUM_ALF_CTRL_FLAG_CTX] = |
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167 | { |
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168 | { 102, }, |
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169 | { 102, }, |
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170 | { 118, }, |
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171 | }; |
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172 | |
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173 | static const UChar |
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174 | INIT_MERGE_FLAG_EXT[3][NUM_MERGE_FLAG_EXT_CTX] = |
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175 | { |
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176 | { 154, }, |
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177 | { 110, }, |
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178 | { CNU, }, |
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179 | }; |
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180 | |
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181 | static const UChar |
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182 | INIT_MERGE_IDX_EXT[3][NUM_MERGE_IDX_EXT_CTX] = |
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183 | { |
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184 | { 137, }, |
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185 | { 122, }, |
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186 | { CNU, }, |
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187 | }; |
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188 | |
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189 | static const UChar |
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190 | INIT_PART_SIZE[3][NUM_PART_SIZE_CTX] = |
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191 | { |
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192 | { 154, 139, CNU, CNU, }, |
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193 | { 154, 139, CNU, CNU, }, |
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194 | { 184, CNU, CNU, CNU, }, |
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195 | }; |
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196 | |
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197 | static const UChar |
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198 | INIT_CU_AMP_POS[3][NUM_CU_AMP_CTX] = |
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199 | { |
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200 | { 154, }, |
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201 | { 154, }, |
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202 | { CNU, }, |
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203 | }; |
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204 | |
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205 | static const UChar |
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206 | INIT_PRED_MODE[3][NUM_PRED_MODE_CTX] = |
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207 | { |
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208 | { 134, }, |
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209 | { 149, }, |
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210 | { CNU, }, |
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211 | }; |
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212 | |
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213 | static const UChar |
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214 | INIT_INTRA_PRED_MODE[3][NUM_ADI_CTX] = |
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215 | { |
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216 | { 183, }, |
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217 | { 154, }, |
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218 | { 184, }, |
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219 | }; |
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220 | |
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221 | static const UChar |
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222 | INIT_CHROMA_PRED_MODE[3][NUM_CHROMA_PRED_CTX] = |
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223 | { |
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224 | { 152, 139, }, |
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225 | { 152, 139, }, |
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226 | { 63, 139, }, |
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227 | }; |
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228 | |
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229 | static const UChar |
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230 | INIT_INTER_DIR[3][NUM_INTER_DIR_CTX] = |
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231 | { |
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232 | { 95, 79, 63, 31, 31, }, |
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233 | { 95, 79, 63, 31, 31, }, |
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234 | { CNU, CNU, CNU, CNU, CNU, }, |
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235 | }; |
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236 | |
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237 | static const UChar |
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238 | INIT_MVD[3][NUM_MV_RES_CTX] = |
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239 | { |
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240 | { 169, 198, }, |
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241 | { 140, 198, }, |
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242 | { CNU, CNU, }, |
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243 | }; |
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244 | |
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245 | #if REF_IDX_BYPASS |
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246 | static const UChar |
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247 | INIT_REF_PIC[3][NUM_REF_NO_CTX] = |
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248 | { |
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249 | { 153, 153 }, |
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250 | { 153, 153 }, |
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251 | { CNU, CNU }, |
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252 | }; |
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253 | #else |
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254 | static const UChar |
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255 | INIT_REF_PIC[3][NUM_REF_NO_CTX] = |
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256 | { |
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257 | { 153, 153, 168, CNU, }, |
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258 | { 153, 153, 139, CNU, }, |
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259 | { CNU, CNU, CNU, CNU, }, |
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260 | }; |
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261 | #endif |
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262 | |
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263 | static const UChar |
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264 | INIT_DQP[3][NUM_DELTA_QP_CTX] = |
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265 | { |
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266 | { 154, 154, 154, }, |
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267 | { 154, 154, 154, }, |
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268 | { 154, 154, 154, }, |
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269 | }; |
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270 | |
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271 | static const UChar |
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272 | INIT_QT_CBF[3][2*NUM_QT_CBF_CTX] = |
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273 | { |
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274 | { 153, 111, CNU, CNU, CNU, 149, 92, 167, CNU, CNU, }, |
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275 | { 153, 111, CNU, CNU, CNU, 149, 107, 167, CNU, CNU, }, |
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276 | { 111, 141, CNU, CNU, CNU, 94, 138, 182, CNU, CNU, }, |
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277 | }; |
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278 | |
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279 | static const UChar |
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280 | INIT_QT_ROOT_CBF[3][NUM_QT_ROOT_CBF_CTX] = |
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281 | { |
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282 | { 79, }, |
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283 | { 79, }, |
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284 | { CNU, }, |
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285 | }; |
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286 | |
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287 | static const UChar |
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288 | INIT_LAST[3][2*NUM_CTX_LAST_FLAG_XY] = |
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289 | { |
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290 | { 125, 110, 124, 110, 95, 94, 125, 111, 111, 79, 125, 126, 111, 111, 79, |
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291 | 108, 123, 93, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, |
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292 | }, |
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293 | { 125, 110, 94, 110, 95, 79, 125, 111, 110, 78, 110, 111, 111, 95, 94, |
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294 | 108, 123, 108, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, |
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295 | }, |
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296 | { 110, 110, 124, 125, 140, 153, 125, 127, 140, 109, 111, 143, 127, 111, 79, |
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297 | 108, 123, 63, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, CNU, |
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298 | }, |
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299 | }; |
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300 | |
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301 | static const UChar |
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302 | INIT_SIG_CG_FLAG[3][2 * NUM_SIG_CG_FLAG_CTX] = |
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303 | { |
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304 | { 121, 140, |
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305 | 61, 154, |
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306 | }, |
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307 | { 121, 140, |
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308 | 61, 154, |
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309 | }, |
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310 | { 91, 171, |
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311 | 134, 141, |
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312 | }, |
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313 | }; |
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314 | |
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315 | static const UChar |
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316 | INIT_SIG_FLAG[3][NUM_SIG_FLAG_CTX] = |
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317 | { |
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318 | #if REMOVAL_8x2_2x8_CG |
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319 | { 170, 154, 139, 153, 139, 123, 123, 63, 124, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170, 153, 138, 138, 122, 121, 122, 121, 167, 151, 183, 140, 151, 183, 140, }, |
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320 | { 155, 154, 139, 153, 139, 123, 123, 63, 153, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 166, 183, 140, 136, 153, 154, 170, 153, 123, 123, 107, 121, 107, 121, 167, 151, 183, 140, 151, 183, 140, }, |
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321 | { 111, 111, 125, 110, 110, 94, 124, 108, 124, 107, 125, 141, 179, 153, 125, 107, 125, 141, 179, 153, 125, 107, 125, 141, 179, 153, 125, 140, 139, 182, 182, 152, 136, 152, 136, 153, 136, 139, 111, 136, 139, 111, }, |
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322 | #else |
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323 | { 170, 154, 139, 153, 139, 123, 123, 63, 124, 153, 153, 152, 152, 152, 137, 152, 137, 137, 166, 183, 140, 136, 153, 154, 170, 153, 138, 138, 122, 121, 122, 121, 167, 153, 167, 136, 121, 122, 136, 121, 122, 91, 151, 183, 140, }, |
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324 | { 155, 154, 139, 153, 139, 123, 123, 63, 153, 153, 153, 152, 152, 152, 137, 152, 137, 122, 166, 183, 140, 136, 153, 154, 170, 153, 123, 123, 107, 121, 107, 121, 167, 153, 167, 136, 149, 107, 136, 121, 122, 91, 151, 183, 140, }, |
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325 | { 111, 111, 125, 110, 110, 94, 124, 108, 124, 139, 139, 139, 168, 124, 138, 124, 138, 107, 107, 125, 141, 179, 153, 125, 140, 139, 182, 182, 152, 136, 152, 136, 153, 182, 137, 149, 192, 152, 224, 136, 31, 136, 136, 139, 111, }, |
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326 | #endif |
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327 | }; |
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328 | |
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329 | static const UChar |
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330 | INIT_ONE_FLAG[3][NUM_ONE_FLAG_CTX] = |
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331 | { |
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332 | { 154, 196, 167, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121, 136, 122, 169, 208, 166, 167, 154, 152, 167, 182, }, |
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333 | { 154, 196, 196, 167, 154, 152, 167, 182, 182, 134, 149, 136, 153, 121, 136, 137, 169, 194, 166, 167, 154, 167, 137, 182, }, |
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334 | { 140, 92, 137, 138, 140, 152, 138, 139, 153, 74, 149, 92, 139, 107, 122, 152, 140, 179, 166, 182, 140, 227, 122, 197, }, |
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335 | }; |
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336 | |
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337 | static const UChar |
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338 | INIT_ABS_FLAG[3][NUM_ABS_FLAG_CTX] = |
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339 | { |
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340 | { 107, 167, 91, 107, 107, 167, }, |
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341 | { 107, 167, 91, 122, 107, 167, }, |
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342 | { 138, 153, 136, 167, 152, 152, }, |
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343 | }; |
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344 | |
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345 | static const UChar |
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346 | INIT_MVP_IDX[3][NUM_MVP_IDX_CTX] = |
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347 | { |
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348 | { 168, CNU, }, |
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349 | { 168, CNU, }, |
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350 | { CNU, CNU, }, |
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351 | }; |
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352 | |
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353 | static const UChar |
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354 | INIT_ALF_FLAG[3][NUM_ALF_FLAG_CTX] = |
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355 | { |
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356 | { 153, }, |
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357 | { 153, }, |
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358 | { 153, }, |
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359 | }; |
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360 | |
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361 | static const UChar |
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362 | INIT_ALF_UVLC[3][NUM_ALF_UVLC_CTX] = |
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363 | { |
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364 | { 154, 154, }, |
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365 | { 154, 154, }, |
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366 | { 140, 154, }, |
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367 | }; |
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368 | |
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369 | static const UChar |
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370 | INIT_ALF_SVLC[3][NUM_ALF_SVLC_CTX] = |
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371 | { |
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372 | { 141, 154, 159, }, |
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373 | { 141, 154, 189, }, |
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374 | { 187, 154, 159, }, |
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375 | }; |
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376 | #if !SAO_ABS_BY_PASS |
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377 | static const UChar |
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378 | INIT_SAO_UVLC[3][NUM_SAO_UVLC_CTX] = |
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379 | { |
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380 | { 200, 140, }, |
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381 | { 185, 140, }, |
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382 | { 143, 140, }, |
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383 | }; |
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384 | #endif |
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385 | #if SAO_MERGE_ONE_CTX |
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386 | static const UChar |
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387 | INIT_SAO_MERGE_FLAG[3][NUM_SAO_MERGE_FLAG_CTX] = |
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388 | { |
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389 | { 153, }, |
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390 | { 153, }, |
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391 | { 153, }, |
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392 | }; |
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393 | #else |
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394 | static const UChar |
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395 | INIT_SAO_MERGE_LEFT_FLAG[3][NUM_SAO_MERGE_LEFT_FLAG_CTX] = |
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396 | { |
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397 | #if SAO_SINGLE_MERGE |
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398 | { 153, }, |
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399 | { 153, }, |
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400 | { 153, }, |
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401 | #else |
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402 | { 153, 153, 153, }, |
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403 | { 153, 153, 153, }, |
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404 | { 153, 153, 153, }, |
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405 | #endif |
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406 | }; |
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407 | |
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408 | static const UChar |
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409 | INIT_SAO_MERGE_UP_FLAG[3][NUM_SAO_MERGE_UP_FLAG_CTX] = |
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410 | { |
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411 | { 153, }, |
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412 | { 153, }, |
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413 | { 175, }, |
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414 | }; |
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415 | #endif |
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416 | |
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417 | static const UChar |
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418 | INIT_SAO_TYPE_IDX[3][NUM_SAO_TYPE_IDX_CTX] = |
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419 | { |
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420 | #if SAO_TYPE_CODING |
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421 | { 200, }, |
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422 | { 185, }, |
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423 | { 160, }, |
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424 | #else |
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425 | { 200, 140, }, |
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426 | { 185, 140, }, |
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427 | { 160, 140, }, |
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428 | #endif |
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429 | }; |
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430 | |
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431 | #if TRANS_SPLIT_FLAG_CTX_REDUCTION |
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432 | static const UChar |
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433 | INIT_TRANS_SUBDIV_FLAG[3][NUM_TRANS_SUBDIV_FLAG_CTX] = |
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434 | { |
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435 | { 153, 138, 138, }, |
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436 | { 124, 138, 94, }, |
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437 | { 224, 167, 122, }, |
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438 | }; |
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439 | #else |
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440 | static const UChar |
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441 | INIT_TRANS_SUBDIV_FLAG[3][NUM_TRANS_SUBDIV_FLAG_CTX] = |
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442 | { |
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443 | { CNU, 153, 138, 138, CNU, CNU, CNU, CNU, CNU, CNU, }, |
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444 | { CNU, 124, 138, 94, CNU, CNU, CNU, CNU, CNU, CNU, }, |
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445 | { CNU, 224, 167, 122, CNU, CNU, CNU, CNU, CNU, CNU, }, |
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446 | }; |
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447 | #endif |
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448 | |
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449 | |
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450 | #if INTRA_BL |
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451 | static const UChar |
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452 | INIT_INTRA_BL_PRED_FLAG[3][NUM_INTRA_BL_PRED_CTX] = |
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453 | { |
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454 | { 185, 185, 201, }, |
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455 | { 197, 197, 185, }, |
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456 | { 197, 197, 185, }, |
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457 | }; |
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458 | #endif |
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459 | static const UChar |
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460 | INIT_TRANSFORMSKIP_FLAG[3][2*NUM_TRANSFORMSKIP_FLAG_CTX] = |
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461 | { |
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462 | { 139, 139}, |
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463 | { 139, 139}, |
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464 | { 139, 139}, |
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465 | }; |
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466 | //! \} |
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467 | |
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468 | |
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469 | #endif |
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