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) 2010-2013, 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 TDecEntropy.cpp |
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35 | \brief entropy decoder class |
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36 | */ |
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37 | |
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38 | #include "TDecEntropy.h" |
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39 | |
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40 | //! \ingroup TLibDecoder |
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41 | //! \{ |
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42 | |
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43 | Void TDecEntropy::setEntropyDecoder ( TDecEntropyIf* p ) |
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44 | { |
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45 | m_pcEntropyDecoderIf = p; |
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46 | } |
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47 | |
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48 | #include "TLibCommon/TComSampleAdaptiveOffset.h" |
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49 | |
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50 | Void TDecEntropy::decodeSkipFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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51 | { |
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52 | m_pcEntropyDecoderIf->parseSkipFlag( pcCU, uiAbsPartIdx, uiDepth ); |
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53 | } |
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54 | |
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55 | Void TDecEntropy::decodeCUTransquantBypassFlag(TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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56 | { |
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57 | m_pcEntropyDecoderIf->parseCUTransquantBypassFlag( pcCU, uiAbsPartIdx, uiDepth ); |
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58 | } |
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59 | |
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60 | /** decode merge flag |
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61 | * \param pcSubCU |
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62 | * \param uiAbsPartIdx |
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63 | * \param uiDepth |
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64 | * \param uiPUIdx |
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65 | * \returns Void |
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66 | */ |
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67 | Void TDecEntropy::decodeMergeFlag( TComDataCU* pcSubCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx ) |
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68 | { |
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69 | // at least one merge candidate exists |
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70 | m_pcEntropyDecoderIf->parseMergeFlag( pcSubCU, uiAbsPartIdx, uiDepth, uiPUIdx ); |
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71 | } |
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72 | |
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73 | /** decode merge index |
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74 | * \param pcCU |
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75 | * \param uiPartIdx |
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76 | * \param uiAbsPartIdx |
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77 | * \param puhInterDirNeighbours pointer to list of inter direction from the casual neighbours |
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78 | * \param pcMvFieldNeighbours pointer to list of motion vector field from the casual neighbours |
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79 | * \param uiDepth |
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80 | * \returns Void |
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81 | */ |
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82 | Void TDecEntropy::decodeMergeIndex( TComDataCU* pcCU, UInt uiPartIdx, UInt uiAbsPartIdx, UInt uiDepth ) |
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83 | { |
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84 | UInt uiMergeIndex = 0; |
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85 | m_pcEntropyDecoderIf->parseMergeIndex( pcCU, uiMergeIndex ); |
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86 | pcCU->setMergeIndexSubParts( uiMergeIndex, uiAbsPartIdx, uiPartIdx, uiDepth ); |
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87 | } |
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88 | |
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89 | #if H_3D_ARP |
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90 | Void TDecEntropy::decodeARPW( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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91 | { |
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92 | if( !pcCU->getSlice()->getARPStepNum() || pcCU->isIntra( uiAbsPartIdx ) ) |
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93 | { |
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94 | return; |
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95 | } |
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96 | |
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97 | if( pcCU->getPartitionSize(uiAbsPartIdx) != SIZE_2Nx2N ) |
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98 | { |
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99 | pcCU->setARPWSubParts( 0 , uiAbsPartIdx, uiDepth ); |
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100 | } |
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101 | else |
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102 | { |
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103 | m_pcEntropyDecoderIf->parseARPW( pcCU , uiAbsPartIdx , uiDepth ); |
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104 | } |
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105 | } |
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106 | #endif |
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107 | |
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108 | #if H_3D_IC |
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109 | Void TDecEntropy::decodeICFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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110 | { |
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111 | pcCU->setICFlagSubParts( false , uiAbsPartIdx, 0, uiDepth ); |
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112 | |
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113 | if ( pcCU->isIntra( uiAbsPartIdx ) || ( pcCU->getSlice()->getViewIndex() == 0 ) ) |
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114 | { |
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115 | return; |
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116 | } |
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117 | |
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118 | if( !pcCU->getSlice()->getApplyIC() ) |
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119 | return; |
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120 | |
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121 | if( pcCU->isICFlagRequired( uiAbsPartIdx ) ) |
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122 | m_pcEntropyDecoderIf->parseICFlag( pcCU, uiAbsPartIdx, uiDepth ); |
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123 | } |
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124 | #endif |
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125 | |
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126 | Void TDecEntropy::decodeSplitFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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127 | { |
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128 | m_pcEntropyDecoderIf->parseSplitFlag( pcCU, uiAbsPartIdx, uiDepth ); |
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129 | } |
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130 | |
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131 | Void TDecEntropy::decodePredMode( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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132 | { |
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133 | m_pcEntropyDecoderIf->parsePredMode( pcCU, uiAbsPartIdx, uiDepth ); |
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134 | } |
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135 | |
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136 | Void TDecEntropy::decodePartSize( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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137 | { |
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138 | m_pcEntropyDecoderIf->parsePartSize( pcCU, uiAbsPartIdx, uiDepth ); |
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139 | } |
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140 | |
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141 | Void TDecEntropy::decodePredInfo ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU ) |
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142 | { |
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143 | if( pcCU->isIntra( uiAbsPartIdx ) ) // If it is Intra mode, encode intra prediction mode. |
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144 | { |
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145 | decodeIntraDirModeLuma ( pcCU, uiAbsPartIdx, uiDepth ); |
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146 | #if H_3D_DIM_SDC |
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147 | if(!pcCU->getSDCFlag(uiAbsPartIdx)) |
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148 | #endif |
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149 | decodeIntraDirModeChroma( pcCU, uiAbsPartIdx, uiDepth ); |
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150 | } |
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151 | else // if it is Inter mode, encode motion vector and reference index |
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152 | { |
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153 | decodePUWise( pcCU, uiAbsPartIdx, uiDepth, pcSubCU ); |
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154 | } |
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155 | } |
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156 | |
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157 | /** Parse I_PCM information. |
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158 | * \param pcCU pointer to CUpointer to CU |
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159 | * \param uiAbsPartIdx CU index |
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160 | * \param uiDepth CU depth |
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161 | * \returns Void |
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162 | */ |
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163 | Void TDecEntropy::decodeIPCMInfo( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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164 | { |
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165 | if(!pcCU->getSlice()->getSPS()->getUsePCM() |
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166 | || pcCU->getWidth(uiAbsPartIdx) > (1<<pcCU->getSlice()->getSPS()->getPCMLog2MaxSize()) |
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167 | || pcCU->getWidth(uiAbsPartIdx) < (1<<pcCU->getSlice()->getSPS()->getPCMLog2MinSize()) ) |
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168 | { |
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169 | return; |
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170 | } |
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171 | #if H_3D_DIM_SDC |
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172 | if( pcCU->getSDCFlag(uiAbsPartIdx) ) |
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173 | { |
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174 | return; |
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175 | } |
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176 | #endif |
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177 | |
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178 | m_pcEntropyDecoderIf->parseIPCMInfo( pcCU, uiAbsPartIdx, uiDepth ); |
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179 | } |
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180 | |
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181 | Void TDecEntropy::decodeIntraDirModeLuma ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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182 | { |
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183 | m_pcEntropyDecoderIf->parseIntraDirLumaAng( pcCU, uiAbsPartIdx, uiDepth ); |
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184 | } |
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185 | |
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186 | Void TDecEntropy::decodeIntraDirModeChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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187 | { |
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188 | m_pcEntropyDecoderIf->parseIntraDirChroma( pcCU, uiAbsPartIdx, uiDepth ); |
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189 | } |
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190 | |
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191 | /** decode motion information for every PU block. |
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192 | * \param pcCU |
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193 | * \param uiAbsPartIdx |
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194 | * \param uiDepth |
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195 | * \param pcSubCU |
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196 | * \returns Void |
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197 | */ |
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198 | Void TDecEntropy::decodePUWise( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU ) |
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199 | { |
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200 | PartSize ePartSize = pcCU->getPartitionSize( uiAbsPartIdx ); |
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201 | UInt uiNumPU = ( ePartSize == SIZE_2Nx2N ? 1 : ( ePartSize == SIZE_NxN ? 4 : 2 ) ); |
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202 | UInt uiPUOffset = ( g_auiPUOffset[UInt( ePartSize )] << ( ( pcCU->getSlice()->getSPS()->getMaxCUDepth() - uiDepth ) << 1 ) ) >> 4; |
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203 | |
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204 | #if H_3D_IV_MERGE |
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205 | TComMvField cMvFieldNeighbours[MRG_MAX_NUM_CANDS_MEM << 1]; // double length for mv of both lists |
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206 | UChar uhInterDirNeighbours[MRG_MAX_NUM_CANDS_MEM]; |
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207 | #else |
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208 | TComMvField cMvFieldNeighbours[MRG_MAX_NUM_CANDS << 1]; // double length for mv of both lists |
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209 | UChar uhInterDirNeighbours[MRG_MAX_NUM_CANDS]; |
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210 | #endif |
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211 | |
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212 | for ( UInt ui = 0; ui < pcCU->getSlice()->getMaxNumMergeCand(); ui++ ) |
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213 | { |
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214 | uhInterDirNeighbours[ui] = 0; |
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215 | } |
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216 | Int numValidMergeCand = 0; |
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217 | Bool isMerged = false; |
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218 | |
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219 | pcSubCU->copyInterPredInfoFrom( pcCU, uiAbsPartIdx, REF_PIC_LIST_0 ); |
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220 | pcSubCU->copyInterPredInfoFrom( pcCU, uiAbsPartIdx, REF_PIC_LIST_1 ); |
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221 | #if H_3D_IV_MERGE |
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222 | pcSubCU->copyDVInfoFrom( pcCU, uiAbsPartIdx); |
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223 | #endif |
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224 | for ( UInt uiPartIdx = 0, uiSubPartIdx = uiAbsPartIdx; uiPartIdx < uiNumPU; uiPartIdx++, uiSubPartIdx += uiPUOffset ) |
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225 | { |
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226 | #if H_MV_ENC_DEC_TRAC |
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227 | DTRACE_PU_S("=========== prediction_unit ===========\n") |
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228 | // ToDo: |
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229 | //DTRACE_PU("x0", uiLPelX) |
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230 | //DTRACE_PU("x1", uiTPelY) |
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231 | #endif |
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232 | decodeMergeFlag( pcCU, uiSubPartIdx, uiDepth, uiPartIdx ); |
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233 | if ( pcCU->getMergeFlag( uiSubPartIdx ) ) |
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234 | { |
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235 | decodeMergeIndex( pcCU, uiPartIdx, uiSubPartIdx, uiDepth ); |
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236 | UInt uiMergeIndex = pcCU->getMergeIndex(uiSubPartIdx); |
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237 | if ( pcCU->getSlice()->getPPS()->getLog2ParallelMergeLevelMinus2() && ePartSize != SIZE_2Nx2N && pcSubCU->getWidth( 0 ) <= 8 ) |
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238 | { |
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239 | pcSubCU->setPartSizeSubParts( SIZE_2Nx2N, 0, uiDepth ); |
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240 | if ( !isMerged ) |
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241 | { |
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242 | #if H_3D_VSP |
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243 | Int vspFlag[MRG_MAX_NUM_CANDS_MEM]; |
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244 | memset(vspFlag, 0, sizeof(Int)*MRG_MAX_NUM_CANDS_MEM); |
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245 | InheritedVSPDisInfo inheritedVSPDisInfo[MRG_MAX_NUM_CANDS_MEM]; |
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246 | pcSubCU->getInterMergeCandidates( 0, 0, cMvFieldNeighbours, uhInterDirNeighbours, vspFlag, inheritedVSPDisInfo, numValidMergeCand ); |
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247 | pcCU->setVSPFlagSubParts( vspFlag[uiMergeIndex], uiSubPartIdx, uiPartIdx, uiDepth ); |
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248 | |
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249 | if(vspFlag[uiMergeIndex]) |
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250 | { |
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251 | pcCU->setDvInfoSubParts(inheritedVSPDisInfo[uiMergeIndex].m_acDvInfo, uiSubPartIdx, uiPartIdx, uiDepth); |
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252 | } |
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253 | #else |
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254 | pcSubCU->getInterMergeCandidates( 0, 0, cMvFieldNeighbours, uhInterDirNeighbours, numValidMergeCand ); |
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255 | #endif |
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256 | isMerged = true; |
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257 | } |
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258 | pcSubCU->setPartSizeSubParts( ePartSize, 0, uiDepth ); |
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259 | } |
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260 | else |
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261 | { |
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262 | uiMergeIndex = pcCU->getMergeIndex(uiSubPartIdx); |
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263 | #if H_3D_VSP |
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264 | Int vspFlag[MRG_MAX_NUM_CANDS_MEM]; |
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265 | memset(vspFlag, 0, sizeof(Int)*MRG_MAX_NUM_CANDS_MEM); |
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266 | InheritedVSPDisInfo inheritedVSPDisInfo[MRG_MAX_NUM_CANDS_MEM]; |
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267 | pcSubCU->getInterMergeCandidates( uiSubPartIdx-uiAbsPartIdx, uiPartIdx, cMvFieldNeighbours, uhInterDirNeighbours, vspFlag, inheritedVSPDisInfo,numValidMergeCand, uiMergeIndex ); |
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268 | pcCU->setVSPFlagSubParts( vspFlag[uiMergeIndex], uiSubPartIdx, uiPartIdx, uiDepth ); |
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269 | if(vspFlag[uiMergeIndex]) |
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270 | { |
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271 | pcCU->setDvInfoSubParts(inheritedVSPDisInfo[uiMergeIndex].m_acDvInfo, uiSubPartIdx, uiPartIdx, uiDepth); |
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272 | } |
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273 | #else |
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274 | pcSubCU->getInterMergeCandidates( uiSubPartIdx-uiAbsPartIdx, uiPartIdx, cMvFieldNeighbours, uhInterDirNeighbours, numValidMergeCand, uiMergeIndex ); |
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275 | #endif |
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276 | } |
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277 | pcCU->setInterDirSubParts( uhInterDirNeighbours[uiMergeIndex], uiSubPartIdx, uiPartIdx, uiDepth ); |
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278 | |
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279 | TComMv cTmpMv( 0, 0 ); |
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280 | for ( UInt uiRefListIdx = 0; uiRefListIdx < 2; uiRefListIdx++ ) |
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281 | { |
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282 | if ( pcCU->getSlice()->getNumRefIdx( RefPicList( uiRefListIdx ) ) > 0 ) |
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283 | { |
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284 | pcCU->setMVPIdxSubParts( 0, RefPicList( uiRefListIdx ), uiSubPartIdx, uiPartIdx, uiDepth); |
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285 | pcCU->setMVPNumSubParts( 0, RefPicList( uiRefListIdx ), uiSubPartIdx, uiPartIdx, uiDepth); |
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286 | pcCU->getCUMvField( RefPicList( uiRefListIdx ) )->setAllMvd( cTmpMv, ePartSize, uiSubPartIdx, uiDepth, uiPartIdx ); |
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287 | pcCU->getCUMvField( RefPicList( uiRefListIdx ) )->setAllMvField( cMvFieldNeighbours[ 2*uiMergeIndex + uiRefListIdx ], ePartSize, uiSubPartIdx, uiDepth, uiPartIdx ); |
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288 | } |
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289 | } |
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290 | } |
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291 | else |
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292 | { |
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293 | decodeInterDirPU( pcCU, uiSubPartIdx, uiDepth, uiPartIdx ); |
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294 | for ( UInt uiRefListIdx = 0; uiRefListIdx < 2; uiRefListIdx++ ) |
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295 | { |
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296 | if ( pcCU->getSlice()->getNumRefIdx( RefPicList( uiRefListIdx ) ) > 0 ) |
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297 | { |
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298 | decodeRefFrmIdxPU( pcCU, uiSubPartIdx, uiDepth, uiPartIdx, RefPicList( uiRefListIdx ) ); |
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299 | decodeMvdPU ( pcCU, uiSubPartIdx, uiDepth, uiPartIdx, RefPicList( uiRefListIdx ) ); |
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300 | decodeMVPIdxPU ( pcSubCU, uiSubPartIdx-uiAbsPartIdx, uiDepth, uiPartIdx, RefPicList( uiRefListIdx ) ); |
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301 | } |
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302 | } |
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303 | } |
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304 | #if H_3D_VSP |
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305 | if ( (pcCU->getInterDir(uiSubPartIdx) == 3) && pcSubCU->isBipredRestriction(uiPartIdx) && (pcCU->getVSPFlag(uiSubPartIdx) == false)) |
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306 | #else |
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307 | if ( (pcCU->getInterDir(uiSubPartIdx) == 3) && pcSubCU->isBipredRestriction(uiPartIdx) ) |
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308 | #endif |
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309 | { |
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310 | pcCU->getCUMvField( REF_PIC_LIST_1 )->setAllMv( TComMv(0,0), ePartSize, uiSubPartIdx, uiDepth, uiPartIdx); |
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311 | pcCU->getCUMvField( REF_PIC_LIST_1 )->setAllRefIdx( -1, ePartSize, uiSubPartIdx, uiDepth, uiPartIdx); |
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312 | pcCU->setInterDirSubParts( 1, uiSubPartIdx, uiPartIdx, uiDepth); |
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313 | } |
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314 | } |
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315 | return; |
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316 | } |
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317 | |
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318 | /** decode inter direction for a PU block |
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319 | * \param pcCU |
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320 | * \param uiAbsPartIdx |
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321 | * \param uiDepth |
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322 | * \param uiPartIdx |
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323 | * \returns Void |
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324 | */ |
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325 | Void TDecEntropy::decodeInterDirPU( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx ) |
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326 | { |
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327 | UInt uiInterDir; |
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328 | |
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329 | if ( pcCU->getSlice()->isInterP() ) |
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330 | { |
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331 | uiInterDir = 1; |
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332 | } |
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333 | else |
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334 | { |
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335 | m_pcEntropyDecoderIf->parseInterDir( pcCU, uiInterDir, uiAbsPartIdx ); |
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336 | } |
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337 | |
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338 | pcCU->setInterDirSubParts( uiInterDir, uiAbsPartIdx, uiPartIdx, uiDepth ); |
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339 | } |
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340 | |
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341 | Void TDecEntropy::decodeRefFrmIdxPU( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList ) |
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342 | { |
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343 | Int iRefFrmIdx = 0; |
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344 | Int iParseRefFrmIdx = pcCU->getInterDir( uiAbsPartIdx ) & ( 1 << eRefList ); |
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345 | |
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346 | if ( pcCU->getSlice()->getNumRefIdx( eRefList ) > 1 && iParseRefFrmIdx ) |
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347 | { |
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348 | m_pcEntropyDecoderIf->parseRefFrmIdx( pcCU, iRefFrmIdx, eRefList ); |
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349 | } |
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350 | else if ( !iParseRefFrmIdx ) |
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351 | { |
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352 | iRefFrmIdx = NOT_VALID; |
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353 | } |
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354 | else |
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355 | { |
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356 | iRefFrmIdx = 0; |
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357 | } |
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358 | |
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359 | PartSize ePartSize = pcCU->getPartitionSize( uiAbsPartIdx ); |
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360 | pcCU->getCUMvField( eRefList )->setAllRefIdx( iRefFrmIdx, ePartSize, uiAbsPartIdx, uiDepth, uiPartIdx ); |
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361 | } |
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362 | |
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363 | /** decode motion vector difference for a PU block |
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364 | * \param pcCU |
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365 | * \param uiAbsPartIdx |
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366 | * \param uiDepth |
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367 | * \param uiPartIdx |
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368 | * \param eRefList |
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369 | * \returns Void |
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370 | */ |
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371 | Void TDecEntropy::decodeMvdPU( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList ) |
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372 | { |
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373 | if ( pcCU->getInterDir( uiAbsPartIdx ) & ( 1 << eRefList ) ) |
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374 | { |
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375 | m_pcEntropyDecoderIf->parseMvd( pcCU, uiAbsPartIdx, uiPartIdx, uiDepth, eRefList ); |
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376 | } |
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377 | } |
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378 | |
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379 | Void TDecEntropy::decodeMVPIdxPU( TComDataCU* pcSubCU, UInt uiPartAddr, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList ) |
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380 | { |
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381 | Int iMVPIdx = -1; |
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382 | |
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383 | TComMv cZeroMv( 0, 0 ); |
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384 | TComMv cMv = cZeroMv; |
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385 | Int iRefIdx = -1; |
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386 | |
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387 | TComCUMvField* pcSubCUMvField = pcSubCU->getCUMvField( eRefList ); |
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388 | AMVPInfo* pAMVPInfo = pcSubCUMvField->getAMVPInfo(); |
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389 | |
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390 | iRefIdx = pcSubCUMvField->getRefIdx(uiPartAddr); |
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391 | cMv = cZeroMv; |
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392 | |
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393 | if ( (pcSubCU->getInterDir(uiPartAddr) & ( 1 << eRefList )) ) |
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394 | { |
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395 | m_pcEntropyDecoderIf->parseMVPIdx( iMVPIdx ); |
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396 | #if H_MV_ENC_DEC_TRAC |
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397 | #if ENC_DEC_TRACE |
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398 | if ( eRefList == REF_PIC_LIST_0 ) |
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399 | { |
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400 | DTRACE_PU("mvp_l0_flag", iMVPIdx) |
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401 | } |
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402 | else |
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403 | { |
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404 | DTRACE_PU("mvp_l1_flag", iMVPIdx) |
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405 | } |
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406 | #endif |
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407 | #endif |
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408 | } |
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409 | pcSubCU->fillMvpCand(uiPartIdx, uiPartAddr, eRefList, iRefIdx, pAMVPInfo); |
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410 | pcSubCU->setMVPNumSubParts(pAMVPInfo->iN, eRefList, uiPartAddr, uiPartIdx, uiDepth); |
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411 | pcSubCU->setMVPIdxSubParts( iMVPIdx, eRefList, uiPartAddr, uiPartIdx, uiDepth ); |
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412 | if ( iRefIdx >= 0 ) |
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413 | { |
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414 | m_pcPrediction->getMvPredAMVP( pcSubCU, uiPartIdx, uiPartAddr, eRefList, cMv); |
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415 | cMv += pcSubCUMvField->getMvd( uiPartAddr ); |
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416 | } |
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417 | |
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418 | PartSize ePartSize = pcSubCU->getPartitionSize( uiPartAddr ); |
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419 | pcSubCU->getCUMvField( eRefList )->setAllMv(cMv, ePartSize, uiPartAddr, 0, uiPartIdx); |
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420 | } |
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421 | |
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422 | Void TDecEntropy::xDecodeTransform( TComDataCU* pcCU, UInt offsetLuma, UInt offsetChroma, UInt uiAbsPartIdx, UInt uiDepth, UInt width, UInt height, UInt uiTrIdx, Bool& bCodeDQP) |
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423 | { |
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424 | UInt uiSubdiv; |
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425 | const UInt uiLog2TrafoSize = g_aucConvertToBit[pcCU->getSlice()->getSPS()->getMaxCUWidth()]+2 - uiDepth; |
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426 | |
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427 | if(uiTrIdx==0) |
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428 | { |
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429 | m_bakAbsPartIdxCU = uiAbsPartIdx; |
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430 | } |
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431 | if( uiLog2TrafoSize == 2 ) |
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432 | { |
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433 | UInt partNum = pcCU->getPic()->getNumPartInCU() >> ( ( uiDepth - 1 ) << 1 ); |
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434 | if( ( uiAbsPartIdx % partNum ) == 0 ) |
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435 | { |
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436 | m_uiBakAbsPartIdx = uiAbsPartIdx; |
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437 | m_uiBakChromaOffset = offsetChroma; |
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438 | } |
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439 | } |
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440 | if( pcCU->getPredictionMode(uiAbsPartIdx) == MODE_INTRA && pcCU->getPartitionSize(uiAbsPartIdx) == SIZE_NxN && uiDepth == pcCU->getDepth(uiAbsPartIdx) ) |
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441 | { |
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442 | uiSubdiv = 1; |
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443 | } |
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444 | else if( (pcCU->getSlice()->getSPS()->getQuadtreeTUMaxDepthInter() == 1) && (pcCU->getPredictionMode(uiAbsPartIdx) == MODE_INTER) && ( pcCU->getPartitionSize(uiAbsPartIdx) != SIZE_2Nx2N ) && (uiDepth == pcCU->getDepth(uiAbsPartIdx)) ) |
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445 | { |
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446 | uiSubdiv = (uiLog2TrafoSize > pcCU->getQuadtreeTULog2MinSizeInCU(uiAbsPartIdx)); |
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447 | } |
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448 | else if( uiLog2TrafoSize > pcCU->getSlice()->getSPS()->getQuadtreeTULog2MaxSize() ) |
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449 | { |
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450 | uiSubdiv = 1; |
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451 | } |
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452 | else if( uiLog2TrafoSize == pcCU->getSlice()->getSPS()->getQuadtreeTULog2MinSize() ) |
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453 | { |
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454 | uiSubdiv = 0; |
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455 | } |
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456 | else if( uiLog2TrafoSize == pcCU->getQuadtreeTULog2MinSizeInCU(uiAbsPartIdx) ) |
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457 | { |
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458 | uiSubdiv = 0; |
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459 | } |
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460 | else |
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461 | { |
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462 | assert( uiLog2TrafoSize > pcCU->getQuadtreeTULog2MinSizeInCU(uiAbsPartIdx) ); |
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463 | m_pcEntropyDecoderIf->parseTransformSubdivFlag( uiSubdiv, 5 - uiLog2TrafoSize ); |
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464 | } |
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465 | |
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466 | const UInt uiTrDepth = uiDepth - pcCU->getDepth( uiAbsPartIdx ); |
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467 | { |
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468 | const Bool bFirstCbfOfCU = uiTrDepth == 0; |
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469 | if( bFirstCbfOfCU ) |
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470 | { |
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471 | pcCU->setCbfSubParts( 0, TEXT_CHROMA_U, uiAbsPartIdx, uiDepth ); |
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472 | pcCU->setCbfSubParts( 0, TEXT_CHROMA_V, uiAbsPartIdx, uiDepth ); |
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473 | } |
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474 | if( bFirstCbfOfCU || uiLog2TrafoSize > 2 ) |
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475 | { |
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476 | if( bFirstCbfOfCU || pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_U, uiTrDepth - 1 ) ) |
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477 | { |
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478 | m_pcEntropyDecoderIf->parseQtCbf( pcCU, uiAbsPartIdx, TEXT_CHROMA_U, uiTrDepth, uiDepth ); |
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479 | } |
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480 | if( bFirstCbfOfCU || pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_V, uiTrDepth - 1 ) ) |
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481 | { |
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482 | m_pcEntropyDecoderIf->parseQtCbf( pcCU, uiAbsPartIdx, TEXT_CHROMA_V, uiTrDepth, uiDepth ); |
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483 | } |
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484 | } |
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485 | else |
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486 | { |
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487 | pcCU->setCbfSubParts( pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_U, uiTrDepth - 1 ) << uiTrDepth, TEXT_CHROMA_U, uiAbsPartIdx, uiDepth ); |
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488 | pcCU->setCbfSubParts( pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_V, uiTrDepth - 1 ) << uiTrDepth, TEXT_CHROMA_V, uiAbsPartIdx, uiDepth ); |
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489 | } |
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490 | } |
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491 | |
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492 | if( uiSubdiv ) |
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493 | { |
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494 | UInt size; |
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495 | width >>= 1; |
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496 | height >>= 1; |
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497 | size = width*height; |
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498 | uiTrIdx++; |
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499 | ++uiDepth; |
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500 | const UInt uiQPartNum = pcCU->getPic()->getNumPartInCU() >> (uiDepth << 1); |
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501 | const UInt uiStartAbsPartIdx = uiAbsPartIdx; |
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502 | UInt uiYCbf = 0; |
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503 | UInt uiUCbf = 0; |
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504 | UInt uiVCbf = 0; |
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505 | |
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506 | for( Int i = 0; i < 4; i++ ) |
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507 | { |
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508 | xDecodeTransform( pcCU, offsetLuma, offsetChroma, uiAbsPartIdx, uiDepth, width, height, uiTrIdx, bCodeDQP ); |
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509 | uiYCbf |= pcCU->getCbf( uiAbsPartIdx, TEXT_LUMA, uiTrDepth+1 ); |
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510 | uiUCbf |= pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_U, uiTrDepth+1 ); |
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511 | uiVCbf |= pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_V, uiTrDepth+1 ); |
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512 | uiAbsPartIdx += uiQPartNum; |
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513 | offsetLuma += size; offsetChroma += (size>>2); |
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514 | } |
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515 | |
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516 | for( UInt ui = 0; ui < 4 * uiQPartNum; ++ui ) |
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517 | { |
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518 | pcCU->getCbf( TEXT_LUMA )[uiStartAbsPartIdx + ui] |= uiYCbf << uiTrDepth; |
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519 | pcCU->getCbf( TEXT_CHROMA_U )[uiStartAbsPartIdx + ui] |= uiUCbf << uiTrDepth; |
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520 | pcCU->getCbf( TEXT_CHROMA_V )[uiStartAbsPartIdx + ui] |= uiVCbf << uiTrDepth; |
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521 | } |
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522 | } |
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523 | else |
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524 | { |
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525 | assert( uiDepth >= pcCU->getDepth( uiAbsPartIdx ) ); |
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526 | pcCU->setTrIdxSubParts( uiTrDepth, uiAbsPartIdx, uiDepth ); |
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527 | |
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528 | #if !H_MV_ENC_DEC_TRAC |
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529 | { |
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530 | DTRACE_CABAC_VL( g_nSymbolCounter++ ); |
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531 | DTRACE_CABAC_T( "\tTrIdx: abspart=" ); |
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532 | DTRACE_CABAC_V( uiAbsPartIdx ); |
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533 | DTRACE_CABAC_T( "\tdepth=" ); |
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534 | DTRACE_CABAC_V( uiDepth ); |
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535 | DTRACE_CABAC_T( "\ttrdepth=" ); |
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536 | DTRACE_CABAC_V( uiTrDepth ); |
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537 | DTRACE_CABAC_T( "\n" ); |
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538 | } |
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539 | #endif |
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540 | |
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541 | pcCU->setCbfSubParts ( 0, TEXT_LUMA, uiAbsPartIdx, uiDepth ); |
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542 | if( pcCU->getPredictionMode(uiAbsPartIdx) != MODE_INTRA && uiDepth == pcCU->getDepth( uiAbsPartIdx ) && !pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_U, 0 ) && !pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_V, 0 ) ) |
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543 | { |
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544 | pcCU->setCbfSubParts( 1 << uiTrDepth, TEXT_LUMA, uiAbsPartIdx, uiDepth ); |
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545 | } |
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546 | else |
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547 | { |
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548 | m_pcEntropyDecoderIf->parseQtCbf( pcCU, uiAbsPartIdx, TEXT_LUMA, uiTrDepth, uiDepth ); |
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549 | } |
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550 | |
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551 | |
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552 | // transform_unit begin |
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553 | UInt cbfY = pcCU->getCbf( uiAbsPartIdx, TEXT_LUMA , uiTrIdx ); |
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554 | UInt cbfU = pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_U, uiTrIdx ); |
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555 | UInt cbfV = pcCU->getCbf( uiAbsPartIdx, TEXT_CHROMA_V, uiTrIdx ); |
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556 | if( uiLog2TrafoSize == 2 ) |
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557 | { |
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558 | UInt partNum = pcCU->getPic()->getNumPartInCU() >> ( ( uiDepth - 1 ) << 1 ); |
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559 | if( ( uiAbsPartIdx % partNum ) == (partNum - 1) ) |
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560 | { |
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561 | cbfU = pcCU->getCbf( m_uiBakAbsPartIdx, TEXT_CHROMA_U, uiTrIdx ); |
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562 | cbfV = pcCU->getCbf( m_uiBakAbsPartIdx, TEXT_CHROMA_V, uiTrIdx ); |
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563 | } |
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564 | } |
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565 | if ( cbfY || cbfU || cbfV ) |
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566 | { |
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567 | // dQP: only for LCU |
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568 | if ( pcCU->getSlice()->getPPS()->getUseDQP() ) |
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569 | { |
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570 | if ( bCodeDQP ) |
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571 | { |
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572 | decodeQP( pcCU, m_bakAbsPartIdxCU); |
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573 | bCodeDQP = false; |
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574 | } |
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575 | } |
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576 | } |
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577 | if( cbfY ) |
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578 | { |
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579 | Int trWidth = width; |
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580 | Int trHeight = height; |
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581 | m_pcEntropyDecoderIf->parseCoeffNxN( pcCU, (pcCU->getCoeffY()+offsetLuma), uiAbsPartIdx, trWidth, trHeight, uiDepth, TEXT_LUMA ); |
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582 | } |
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583 | if( uiLog2TrafoSize > 2 ) |
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584 | { |
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585 | Int trWidth = width >> 1; |
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586 | Int trHeight = height >> 1; |
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587 | if( cbfU ) |
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588 | { |
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589 | m_pcEntropyDecoderIf->parseCoeffNxN( pcCU, (pcCU->getCoeffCb()+offsetChroma), uiAbsPartIdx, trWidth, trHeight, uiDepth, TEXT_CHROMA_U ); |
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590 | } |
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591 | if( cbfV ) |
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592 | { |
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593 | m_pcEntropyDecoderIf->parseCoeffNxN( pcCU, (pcCU->getCoeffCr()+offsetChroma), uiAbsPartIdx, trWidth, trHeight, uiDepth, TEXT_CHROMA_V ); |
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594 | } |
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595 | } |
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596 | else |
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597 | { |
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598 | UInt partNum = pcCU->getPic()->getNumPartInCU() >> ( ( uiDepth - 1 ) << 1 ); |
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599 | if( ( uiAbsPartIdx % partNum ) == (partNum - 1) ) |
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600 | { |
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601 | Int trWidth = width; |
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602 | Int trHeight = height; |
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603 | if( cbfU ) |
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604 | { |
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605 | m_pcEntropyDecoderIf->parseCoeffNxN( pcCU, (pcCU->getCoeffCb()+m_uiBakChromaOffset), m_uiBakAbsPartIdx, trWidth, trHeight, uiDepth, TEXT_CHROMA_U ); |
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606 | } |
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607 | if( cbfV ) |
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608 | { |
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609 | m_pcEntropyDecoderIf->parseCoeffNxN( pcCU, (pcCU->getCoeffCr()+m_uiBakChromaOffset), m_uiBakAbsPartIdx, trWidth, trHeight, uiDepth, TEXT_CHROMA_V ); |
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610 | } |
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611 | } |
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612 | } |
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613 | // transform_unit end |
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614 | } |
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615 | } |
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616 | |
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617 | Void TDecEntropy::decodeQP ( TComDataCU* pcCU, UInt uiAbsPartIdx ) |
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618 | { |
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619 | if ( pcCU->getSlice()->getPPS()->getUseDQP() ) |
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620 | { |
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621 | m_pcEntropyDecoderIf->parseDeltaQP( pcCU, uiAbsPartIdx, pcCU->getDepth( uiAbsPartIdx ) ); |
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622 | } |
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623 | } |
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624 | |
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625 | |
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626 | /** decode coefficients |
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627 | * \param pcCU |
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628 | * \param uiAbsPartIdx |
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629 | * \param uiDepth |
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630 | * \param uiWidth |
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631 | * \param uiHeight |
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632 | * \returns Void |
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633 | */ |
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634 | Void TDecEntropy::decodeCoeff( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiWidth, UInt uiHeight, Bool& bCodeDQP ) |
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635 | { |
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636 | UInt uiMinCoeffSize = pcCU->getPic()->getMinCUWidth()*pcCU->getPic()->getMinCUHeight(); |
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637 | UInt uiLumaOffset = uiMinCoeffSize*uiAbsPartIdx; |
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638 | UInt uiChromaOffset = uiLumaOffset>>2; |
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639 | |
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640 | #if H_3D_DIM_SDC |
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641 | if( pcCU->getSDCFlag( uiAbsPartIdx ) ) |
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642 | { |
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643 | assert( pcCU->getPartitionSize(uiAbsPartIdx) == SIZE_2Nx2N ); |
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644 | assert( pcCU->getTransformIdx(uiAbsPartIdx) == 0 ); |
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645 | assert( pcCU->getCbf(uiAbsPartIdx, TEXT_LUMA) == 1 ); |
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646 | assert( pcCU->getCbf(uiAbsPartIdx, TEXT_CHROMA_U) == 1 ); |
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647 | assert( pcCU->getCbf(uiAbsPartIdx, TEXT_CHROMA_V) == 1 ); |
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648 | return; |
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649 | } |
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650 | #endif |
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651 | |
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652 | #if H_3D_INTER_SDC |
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653 | if( pcCU->getInterSDCFlag( uiAbsPartIdx ) ) |
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654 | { |
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655 | assert( !pcCU->isSkipped( uiAbsPartIdx ) ); |
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656 | assert( !pcCU->isIntra( uiAbsPartIdx) ); |
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657 | assert( pcCU->getSlice()->getIsDepth() ); |
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658 | |
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659 | decodeInterSDCResidualData( pcCU, uiAbsPartIdx, uiDepth ); |
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660 | return; |
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661 | } |
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662 | #endif |
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663 | |
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664 | if( pcCU->isIntra(uiAbsPartIdx) ) |
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665 | { |
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666 | } |
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667 | else |
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668 | { |
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669 | UInt uiQtRootCbf = 1; |
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670 | if( !( pcCU->getPartitionSize( uiAbsPartIdx) == SIZE_2Nx2N && pcCU->getMergeFlag( uiAbsPartIdx ) ) ) |
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671 | { |
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672 | m_pcEntropyDecoderIf->parseQtRootCbf( uiAbsPartIdx, uiQtRootCbf ); |
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673 | } |
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674 | if ( !uiQtRootCbf ) |
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675 | { |
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676 | pcCU->setCbfSubParts( 0, 0, 0, uiAbsPartIdx, uiDepth ); |
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677 | pcCU->setTrIdxSubParts( 0 , uiAbsPartIdx, uiDepth ); |
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678 | return; |
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679 | } |
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680 | |
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681 | } |
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682 | xDecodeTransform( pcCU, uiLumaOffset, uiChromaOffset, uiAbsPartIdx, uiDepth, uiWidth, uiHeight, 0, bCodeDQP ); |
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683 | } |
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684 | |
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685 | #if H_3D_INTER_SDC |
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686 | Void TDecEntropy::decodeInterSDCFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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687 | { |
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688 | pcCU->setInterSDCFlagSubParts( false, uiAbsPartIdx, 0, uiDepth); |
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689 | |
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690 | if( !pcCU->getSlice()->getVPS()->getInterSDCFlag( pcCU->getSlice()->getLayerIdInVps() ) ) |
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691 | { |
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692 | return; |
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693 | } |
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694 | |
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695 | if( !pcCU->getSlice()->getIsDepth() || pcCU->isIntra( uiAbsPartIdx ) || pcCU->isSkipped( uiAbsPartIdx ) ) |
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696 | { |
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697 | return; |
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698 | } |
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699 | |
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700 | m_pcEntropyDecoderIf->parseInterSDCFlag( pcCU, uiAbsPartIdx, uiDepth ); |
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701 | } |
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702 | |
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703 | Void TDecEntropy::decodeInterSDCResidualData( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
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704 | { |
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705 | if( !pcCU->getSlice()->getVPS()->getInterSDCFlag( pcCU->getSlice()->getLayerIdInVps() ) ) |
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706 | { |
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707 | return; |
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708 | } |
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709 | |
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710 | if( !pcCU->getSlice()->getIsDepth() || pcCU->isIntra( uiAbsPartIdx ) || !pcCU->getInterSDCFlag( uiAbsPartIdx ) ) |
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711 | { |
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712 | return; |
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713 | } |
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714 | |
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715 | UInt uiNumSegments = ( pcCU->getPartitionSize( uiAbsPartIdx ) == SIZE_2Nx2N ) ? 1 : ( pcCU->getPartitionSize( uiAbsPartIdx ) == SIZE_NxN ? 4 : 2 ); |
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716 | |
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717 | // decode residual data for each segment |
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718 | for( UInt uiSeg = 0; uiSeg < uiNumSegments; uiSeg++ ) |
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719 | { |
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720 | m_pcEntropyDecoderIf->parseInterSDCResidualData( pcCU, uiAbsPartIdx, uiDepth, uiSeg ); |
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721 | } |
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722 | } |
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723 | #endif |
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724 | |
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725 | //! \} |
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