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) 2010-2015, 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 TDecSbac.cpp |
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35 | \brief Context-adaptive entropy decoder class |
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36 | */ |
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37 | |
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38 | #include "TDecSbac.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 | ////////////////////////////////////////////////////////////////////// |
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44 | // Construction/Destruction |
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45 | ////////////////////////////////////////////////////////////////////// |
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46 | |
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47 | TDecSbac::TDecSbac() |
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48 | // new structure here |
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49 | : m_pcBitstream ( 0 ) |
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50 | , m_pcTDecBinIf ( NULL ) |
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51 | , m_numContextModels ( 0 ) |
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52 | , m_cCUSplitFlagSCModel ( 1, 1, NUM_SPLIT_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels ) |
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53 | , m_cCUSkipFlagSCModel ( 1, 1, NUM_SKIP_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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54 | #if H_3D |
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55 | , m_cCUDISFlagSCModel ( 1, 1, NUM_DIS_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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56 | , m_cCUDISTypeSCModel ( 1, 1, NUM_DIS_TYPE_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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57 | #endif |
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58 | , m_cCUMergeFlagExtSCModel ( 1, 1, NUM_MERGE_FLAG_EXT_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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59 | , m_cCUMergeIdxExtSCModel ( 1, 1, NUM_MERGE_IDX_EXT_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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60 | #if H_3D_ARP |
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61 | , m_cCUPUARPWSCModel ( 1, 1, NUM_ARPW_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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62 | #endif |
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63 | #if H_3D_IC |
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64 | , m_cCUICFlagSCModel ( 1, 1, NUM_IC_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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65 | #endif |
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66 | , m_cCUPartSizeSCModel ( 1, 1, NUM_PART_SIZE_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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67 | , m_cCUPredModeSCModel ( 1, 1, NUM_PRED_MODE_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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68 | , m_cCUIntraPredSCModel ( 1, 1, NUM_ADI_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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69 | , m_cCUChromaPredSCModel ( 1, 1, NUM_CHROMA_PRED_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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70 | , m_cCUDeltaQpSCModel ( 1, 1, NUM_DELTA_QP_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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71 | , m_cCUInterDirSCModel ( 1, 1, NUM_INTER_DIR_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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72 | , m_cCURefPicSCModel ( 1, 1, NUM_REF_NO_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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73 | , m_cCUMvdSCModel ( 1, 1, NUM_MV_RES_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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74 | , m_cCUQtCbfSCModel ( 1, 2, NUM_QT_CBF_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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75 | , m_cCUTransSubdivFlagSCModel ( 1, 1, NUM_TRANS_SUBDIV_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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76 | , m_cCUQtRootCbfSCModel ( 1, 1, NUM_QT_ROOT_CBF_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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77 | , m_cCUSigCoeffGroupSCModel ( 1, 2, NUM_SIG_CG_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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78 | , m_cCUSigSCModel ( 1, 1, NUM_SIG_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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79 | , m_cCuCtxLastX ( 1, 2, NUM_CTX_LAST_FLAG_XY , m_contextModels + m_numContextModels, m_numContextModels) |
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80 | , m_cCuCtxLastY ( 1, 2, NUM_CTX_LAST_FLAG_XY , m_contextModels + m_numContextModels, m_numContextModels) |
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81 | , m_cCUOneSCModel ( 1, 1, NUM_ONE_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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82 | , m_cCUAbsSCModel ( 1, 1, NUM_ABS_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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83 | , m_cMVPIdxSCModel ( 1, 1, NUM_MVP_IDX_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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84 | , m_cSaoMergeSCModel ( 1, 1, NUM_SAO_MERGE_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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85 | , m_cSaoTypeIdxSCModel ( 1, 1, NUM_SAO_TYPE_IDX_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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86 | , m_cTransformSkipSCModel ( 1, 2, NUM_TRANSFORMSKIP_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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87 | , m_CUTransquantBypassFlagSCModel( 1, 1, NUM_CU_TRANSQUANT_BYPASS_FLAG_CTX, m_contextModels + m_numContextModels, m_numContextModels) |
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88 | #if H_3D_DIM |
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89 | , m_cDepthIntraModeSCModel ( 1, 1, NUM_DEPTH_INTRA_MODE_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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90 | , m_cDdcFlagSCModel ( 1, 1, NUM_DDC_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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91 | , m_cDdcDataSCModel ( 1, 1, NUM_DDC_DATA_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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92 | , m_cAngleFlagSCModel ( 1, 1, NUM_ANGLE_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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93 | #if H_3D_DIM_SDC |
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94 | , m_cSDCResidualFlagSCModel ( 1, 1, SDC_NUM_RESIDUAL_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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95 | , m_cSDCResidualSCModel ( 1, 1, SDC_NUM_RESIDUAL_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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96 | #endif |
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97 | #endif |
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98 | #if H_3D_DIM_SDC |
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99 | , m_cSDCFlagSCModel ( 1, 1, NUM_SDC_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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100 | #endif |
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101 | #if H_3D_DBBP |
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102 | , m_cDBBPFlagSCModel ( 1, 1, DBBP_NUM_FLAG_CTX , m_contextModels + m_numContextModels, m_numContextModels) |
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103 | #endif |
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104 | { |
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105 | assert( m_numContextModels <= MAX_NUM_CTX_MOD ); |
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106 | } |
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107 | |
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108 | TDecSbac::~TDecSbac() |
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109 | { |
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110 | } |
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111 | |
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112 | // ==================================================================================================================== |
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113 | // Public member functions |
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114 | // ==================================================================================================================== |
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115 | |
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116 | Void TDecSbac::resetEntropy(TComSlice* pSlice) |
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117 | { |
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118 | SliceType sliceType = pSlice->getSliceType(); |
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119 | Int qp = pSlice->getSliceQp(); |
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120 | |
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121 | if (pSlice->getPPS()->getCabacInitPresentFlag() && pSlice->getCabacInitFlag()) |
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122 | { |
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123 | switch (sliceType) |
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124 | { |
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125 | case P_SLICE: // change initialization table to B_SLICE initialization |
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126 | sliceType = B_SLICE; |
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127 | break; |
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128 | case B_SLICE: // change initialization table to P_SLICE initialization |
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129 | sliceType = P_SLICE; |
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130 | break; |
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131 | default : // should not occur |
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132 | assert(0); |
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133 | } |
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134 | } |
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135 | |
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136 | m_cCUSplitFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_SPLIT_FLAG ); |
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137 | m_cCUSkipFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_SKIP_FLAG ); |
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138 | #if H_3D |
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139 | m_cCUDISFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_DIS_FLAG ); |
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140 | m_cCUDISTypeSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_DIS_TYPE ); |
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141 | #endif |
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142 | m_cCUMergeFlagExtSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_MERGE_FLAG_EXT ); |
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143 | m_cCUMergeIdxExtSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_MERGE_IDX_EXT ); |
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144 | #if H_3D_ARP |
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145 | m_cCUPUARPWSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_ARPW ); |
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146 | #endif |
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147 | #if H_3D_IC |
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148 | m_cCUICFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_IC_FLAG ); |
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149 | #endif |
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150 | m_cCUPartSizeSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_PART_SIZE ); |
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151 | m_cCUPredModeSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_PRED_MODE ); |
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152 | m_cCUIntraPredSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_INTRA_PRED_MODE ); |
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153 | m_cCUChromaPredSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_CHROMA_PRED_MODE ); |
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154 | m_cCUInterDirSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_INTER_DIR ); |
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155 | m_cCUMvdSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_MVD ); |
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156 | m_cCURefPicSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_REF_PIC ); |
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157 | m_cCUDeltaQpSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_DQP ); |
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158 | m_cCUQtCbfSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_QT_CBF ); |
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159 | m_cCUQtRootCbfSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_QT_ROOT_CBF ); |
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160 | m_cCUSigCoeffGroupSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_SIG_CG_FLAG ); |
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161 | m_cCUSigSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_SIG_FLAG ); |
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162 | m_cCuCtxLastX.initBuffer ( sliceType, qp, (UChar*)INIT_LAST ); |
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163 | m_cCuCtxLastY.initBuffer ( sliceType, qp, (UChar*)INIT_LAST ); |
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164 | m_cCUOneSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_ONE_FLAG ); |
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165 | m_cCUAbsSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_ABS_FLAG ); |
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166 | m_cMVPIdxSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_MVP_IDX ); |
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167 | m_cSaoMergeSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_SAO_MERGE_FLAG ); |
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168 | m_cSaoTypeIdxSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_SAO_TYPE_IDX ); |
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169 | |
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170 | m_cCUTransSubdivFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_TRANS_SUBDIV_FLAG ); |
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171 | m_cTransformSkipSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_TRANSFORMSKIP_FLAG ); |
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172 | m_CUTransquantBypassFlagSCModel.initBuffer( sliceType, qp, (UChar*)INIT_CU_TRANSQUANT_BYPASS_FLAG ); |
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173 | #if H_3D_DIM |
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174 | m_cDepthIntraModeSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_DEPTH_INTRA_MODE ); |
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175 | m_cDdcFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_DDC_FLAG ); |
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176 | m_cDdcDataSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_DDC_DATA ); |
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177 | m_cAngleFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_ANGLE_FLAG ); |
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178 | #if H_3D_DIM_SDC |
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179 | m_cSDCResidualFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_SDC_RESIDUAL_FLAG ); |
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180 | m_cSDCResidualSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_SDC_RESIDUAL ); |
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181 | #endif |
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182 | #endif |
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183 | #if H_3D_DIM_SDC |
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184 | m_cSDCFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_SDC_FLAG ); |
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185 | #endif |
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186 | #if H_3D_DBBP |
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187 | m_cDBBPFlagSCModel.initBuffer ( sliceType, qp, (UChar*)INIT_DBBP_FLAG ); |
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188 | #endif |
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189 | m_uiLastDQpNonZero = 0; |
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190 | |
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191 | // new structure |
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192 | m_uiLastQp = qp; |
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193 | |
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194 | m_pcTDecBinIf->start(); |
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195 | } |
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196 | |
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197 | /** The function does the following: Read out terminate bit. Flush CABAC. Byte-align for next tile. |
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198 | * Intialize CABAC states. Start CABAC. |
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199 | */ |
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200 | Void TDecSbac::updateContextTables( SliceType eSliceType, Int iQp ) |
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201 | { |
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202 | UInt uiBit; |
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203 | m_pcTDecBinIf->decodeBinTrm(uiBit); |
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204 | assert(uiBit); // end_of_sub_stream_one_bit must be equal to 1 |
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205 | m_pcTDecBinIf->finish(); |
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206 | m_pcBitstream->readOutTrailingBits(); |
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207 | m_cCUSplitFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SPLIT_FLAG ); |
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208 | m_cCUSkipFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SKIP_FLAG ); |
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209 | #if H_3D |
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210 | m_cCUDISFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DIS_FLAG ); |
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211 | m_cCUDISTypeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DIS_TYPE ); |
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212 | #endif |
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213 | m_cCUMergeFlagExtSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MERGE_FLAG_EXT ); |
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214 | m_cCUMergeIdxExtSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MERGE_IDX_EXT ); |
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215 | #if H_3D_ARP |
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216 | m_cCUPUARPWSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ARPW ); |
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217 | #endif |
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218 | #if H_3D_IC |
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219 | m_cCUICFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_IC_FLAG ); |
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220 | #endif |
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221 | m_cCUPartSizeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_PART_SIZE ); |
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222 | m_cCUPredModeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_PRED_MODE ); |
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223 | m_cCUIntraPredSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTRA_PRED_MODE ); |
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224 | m_cCUChromaPredSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_CHROMA_PRED_MODE ); |
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225 | m_cCUInterDirSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_INTER_DIR ); |
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226 | m_cCUMvdSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MVD ); |
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227 | m_cCURefPicSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_REF_PIC ); |
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228 | m_cCUDeltaQpSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DQP ); |
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229 | m_cCUQtCbfSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_QT_CBF ); |
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230 | m_cCUQtRootCbfSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_QT_ROOT_CBF ); |
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231 | m_cCUSigCoeffGroupSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SIG_CG_FLAG ); |
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232 | m_cCUSigSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SIG_FLAG ); |
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233 | m_cCuCtxLastX.initBuffer ( eSliceType, iQp, (UChar*)INIT_LAST ); |
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234 | m_cCuCtxLastY.initBuffer ( eSliceType, iQp, (UChar*)INIT_LAST ); |
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235 | m_cCUOneSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ONE_FLAG ); |
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236 | m_cCUAbsSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ABS_FLAG ); |
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237 | m_cMVPIdxSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_MVP_IDX ); |
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238 | m_cSaoMergeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_MERGE_FLAG ); |
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239 | m_cSaoTypeIdxSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SAO_TYPE_IDX ); |
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240 | m_cCUTransSubdivFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_TRANS_SUBDIV_FLAG ); |
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241 | m_cTransformSkipSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_TRANSFORMSKIP_FLAG ); |
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242 | m_CUTransquantBypassFlagSCModel.initBuffer( eSliceType, iQp, (UChar*)INIT_CU_TRANSQUANT_BYPASS_FLAG ); |
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243 | |
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244 | #if H_3D_DIM |
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245 | m_cDepthIntraModeSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DEPTH_INTRA_MODE ); |
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246 | m_cDdcFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DDC_FLAG ); |
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247 | m_cDdcDataSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DDC_DATA ); |
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248 | m_cAngleFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_ANGLE_FLAG ); |
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249 | #if H_3D_DIM_SDC |
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250 | m_cSDCResidualFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SDC_RESIDUAL_FLAG ); |
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251 | m_cSDCResidualSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SDC_RESIDUAL ); |
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252 | #endif |
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253 | #endif |
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254 | #if H_3D_DIM_SDC |
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255 | m_cSDCFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_SDC_FLAG ); |
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256 | #endif |
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257 | #if H_3D_DBBP |
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258 | m_cDBBPFlagSCModel.initBuffer ( eSliceType, iQp, (UChar*)INIT_DBBP_FLAG ); |
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259 | #endif |
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260 | m_pcTDecBinIf->start(); |
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261 | } |
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262 | |
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263 | Void TDecSbac::parseTerminatingBit( UInt& ruiBit ) |
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264 | { |
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265 | m_pcTDecBinIf->decodeBinTrm( ruiBit ); |
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266 | if ( ruiBit ) |
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267 | { |
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268 | m_pcTDecBinIf->finish(); |
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269 | } |
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270 | } |
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271 | |
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272 | |
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273 | Void TDecSbac::xReadUnaryMaxSymbol( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol ) |
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274 | { |
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275 | if (uiMaxSymbol == 0) |
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276 | { |
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277 | ruiSymbol = 0; |
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278 | return; |
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279 | } |
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280 | |
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281 | m_pcTDecBinIf->decodeBin( ruiSymbol, pcSCModel[0] ); |
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282 | |
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283 | if( ruiSymbol == 0 || uiMaxSymbol == 1 ) |
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284 | { |
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285 | return; |
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286 | } |
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287 | |
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288 | UInt uiSymbol = 0; |
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289 | UInt uiCont; |
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290 | |
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291 | do |
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292 | { |
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293 | m_pcTDecBinIf->decodeBin( uiCont, pcSCModel[ iOffset ] ); |
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294 | uiSymbol++; |
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295 | } |
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296 | while( uiCont && ( uiSymbol < uiMaxSymbol - 1 ) ); |
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297 | |
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298 | if( uiCont && ( uiSymbol == uiMaxSymbol - 1 ) ) |
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299 | { |
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300 | uiSymbol++; |
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301 | } |
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302 | |
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303 | ruiSymbol = uiSymbol; |
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304 | } |
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305 | |
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306 | Void TDecSbac::xReadEpExGolomb( UInt& ruiSymbol, UInt uiCount ) |
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307 | { |
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308 | UInt uiSymbol = 0; |
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309 | UInt uiBit = 1; |
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310 | |
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311 | while( uiBit ) |
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312 | { |
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313 | m_pcTDecBinIf->decodeBinEP( uiBit ); |
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314 | uiSymbol += uiBit << uiCount++; |
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315 | } |
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316 | |
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317 | if ( --uiCount ) |
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318 | { |
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319 | UInt bins; |
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320 | m_pcTDecBinIf->decodeBinsEP( bins, uiCount ); |
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321 | uiSymbol += bins; |
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322 | } |
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323 | |
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324 | ruiSymbol = uiSymbol; |
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325 | } |
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326 | |
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327 | Void TDecSbac::xReadUnarySymbol( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset ) |
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328 | { |
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329 | m_pcTDecBinIf->decodeBin( ruiSymbol, pcSCModel[0] ); |
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330 | |
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331 | if( !ruiSymbol ) |
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332 | { |
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333 | return; |
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334 | } |
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335 | |
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336 | UInt uiSymbol = 0; |
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337 | UInt uiCont; |
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338 | |
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339 | do |
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340 | { |
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341 | m_pcTDecBinIf->decodeBin( uiCont, pcSCModel[ iOffset ] ); |
---|
342 | uiSymbol++; |
---|
343 | } |
---|
344 | while( uiCont ); |
---|
345 | |
---|
346 | ruiSymbol = uiSymbol; |
---|
347 | } |
---|
348 | |
---|
349 | |
---|
350 | /** Parsing of coeff_abs_level_remaing |
---|
351 | * \param ruiSymbol reference to coeff_abs_level_remaing |
---|
352 | * \param ruiParam reference to parameter |
---|
353 | * \returns Void |
---|
354 | */ |
---|
355 | Void TDecSbac::xReadCoefRemainExGolomb ( UInt &rSymbol, UInt &rParam ) |
---|
356 | { |
---|
357 | |
---|
358 | UInt prefix = 0; |
---|
359 | UInt codeWord = 0; |
---|
360 | do |
---|
361 | { |
---|
362 | prefix++; |
---|
363 | m_pcTDecBinIf->decodeBinEP( codeWord ); |
---|
364 | } |
---|
365 | while( codeWord); |
---|
366 | codeWord = 1 - codeWord; |
---|
367 | prefix -= codeWord; |
---|
368 | codeWord=0; |
---|
369 | if (prefix < COEF_REMAIN_BIN_REDUCTION ) |
---|
370 | { |
---|
371 | m_pcTDecBinIf->decodeBinsEP(codeWord,rParam); |
---|
372 | rSymbol = (prefix<<rParam) + codeWord; |
---|
373 | } |
---|
374 | else |
---|
375 | { |
---|
376 | m_pcTDecBinIf->decodeBinsEP(codeWord,prefix-COEF_REMAIN_BIN_REDUCTION+rParam); |
---|
377 | rSymbol = (((1<<(prefix-COEF_REMAIN_BIN_REDUCTION))+COEF_REMAIN_BIN_REDUCTION-1)<<rParam)+codeWord; |
---|
378 | } |
---|
379 | } |
---|
380 | |
---|
381 | #if H_3D_DIM |
---|
382 | Void TDecSbac::xReadExGolombLevel( UInt& ruiSymbol, ContextModel& rcSCModel ) |
---|
383 | { |
---|
384 | UInt uiSymbol; |
---|
385 | UInt uiCount = 0; |
---|
386 | do |
---|
387 | { |
---|
388 | m_pcTDecBinIf->decodeBin( uiSymbol, rcSCModel ); |
---|
389 | uiCount++; |
---|
390 | } |
---|
391 | while( uiSymbol && ( uiCount != 3 ) ); |
---|
392 | ruiSymbol = uiCount - 1; |
---|
393 | |
---|
394 | if( uiSymbol ) |
---|
395 | { |
---|
396 | xReadEpExGolomb( uiSymbol, 0 ); |
---|
397 | ruiSymbol += uiSymbol + 1; |
---|
398 | } |
---|
399 | |
---|
400 | return; |
---|
401 | } |
---|
402 | |
---|
403 | Void TDecSbac::xParseDimDeltaDC( Pel& rValDeltaDC, UInt uiNumSeg ) |
---|
404 | { |
---|
405 | UInt absValDeltaDC = 0; |
---|
406 | xReadExGolombLevel( absValDeltaDC, m_cDdcDataSCModel.get(0, 0, 0) ); |
---|
407 | rValDeltaDC = (Pel)absValDeltaDC + ( uiNumSeg > 1 ? 0 : 1 ); |
---|
408 | |
---|
409 | if( rValDeltaDC != 0 ) |
---|
410 | { |
---|
411 | UInt uiSign; |
---|
412 | m_pcTDecBinIf->decodeBinEP( uiSign ); |
---|
413 | if ( uiSign ) |
---|
414 | { |
---|
415 | rValDeltaDC = -rValDeltaDC; |
---|
416 | } |
---|
417 | } |
---|
418 | } |
---|
419 | |
---|
420 | |
---|
421 | #if H_3D_DIM_DMM |
---|
422 | Void TDecSbac::xParseDmm1WedgeIdx( UInt& ruiTabIdx, Int iNumBit ) |
---|
423 | { |
---|
424 | UInt uiSymbol, uiIdx = 0; |
---|
425 | for( Int i = 0; i < iNumBit; i++ ) |
---|
426 | { |
---|
427 | m_pcTDecBinIf->decodeBinEP( uiSymbol ); |
---|
428 | uiIdx += uiSymbol << i; |
---|
429 | } |
---|
430 | ruiTabIdx = uiIdx; |
---|
431 | } |
---|
432 | #endif |
---|
433 | |
---|
434 | |
---|
435 | #endif |
---|
436 | /** Parse I_PCM information. |
---|
437 | * \param pcCU |
---|
438 | * \param uiAbsPartIdx |
---|
439 | * \param uiDepth |
---|
440 | * \returns Void |
---|
441 | * |
---|
442 | * If I_PCM flag indicates that the CU is I_PCM, parse its PCM alignment bits and codes. |
---|
443 | */ |
---|
444 | Void TDecSbac::parseIPCMInfo ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
445 | { |
---|
446 | UInt uiSymbol; |
---|
447 | |
---|
448 | m_pcTDecBinIf->decodeBinTrm(uiSymbol); |
---|
449 | |
---|
450 | #if H_MV_ENC_DEC_TRAC |
---|
451 | DTRACE_CU("pcm_flag", uiSymbol) |
---|
452 | #endif |
---|
453 | if (uiSymbol) |
---|
454 | { |
---|
455 | Bool bIpcmFlag = true; |
---|
456 | |
---|
457 | pcCU->setPartSizeSubParts ( SIZE_2Nx2N, uiAbsPartIdx, uiDepth ); |
---|
458 | pcCU->setSizeSubParts ( g_uiMaxCUWidth>>uiDepth, g_uiMaxCUHeight>>uiDepth, uiAbsPartIdx, uiDepth ); |
---|
459 | pcCU->setTrIdxSubParts ( 0, uiAbsPartIdx, uiDepth ); |
---|
460 | pcCU->setIPCMFlagSubParts ( bIpcmFlag, uiAbsPartIdx, uiDepth ); |
---|
461 | |
---|
462 | UInt uiMinCoeffSize = pcCU->getPic()->getMinCUWidth()*pcCU->getPic()->getMinCUHeight(); |
---|
463 | UInt uiLumaOffset = uiMinCoeffSize*uiAbsPartIdx; |
---|
464 | UInt uiChromaOffset = uiLumaOffset>>2; |
---|
465 | |
---|
466 | Pel* piPCMSample; |
---|
467 | UInt uiWidth; |
---|
468 | UInt uiHeight; |
---|
469 | UInt uiSampleBits; |
---|
470 | UInt uiX, uiY; |
---|
471 | |
---|
472 | piPCMSample = pcCU->getPCMSampleY() + uiLumaOffset; |
---|
473 | uiWidth = pcCU->getWidth(uiAbsPartIdx); |
---|
474 | uiHeight = pcCU->getHeight(uiAbsPartIdx); |
---|
475 | uiSampleBits = pcCU->getSlice()->getSPS()->getPCMBitDepthLuma(); |
---|
476 | |
---|
477 | for(uiY = 0; uiY < uiHeight; uiY++) |
---|
478 | { |
---|
479 | for(uiX = 0; uiX < uiWidth; uiX++) |
---|
480 | { |
---|
481 | UInt uiSample; |
---|
482 | m_pcTDecBinIf->xReadPCMCode(uiSampleBits, uiSample); |
---|
483 | piPCMSample[uiX] = uiSample; |
---|
484 | } |
---|
485 | piPCMSample += uiWidth; |
---|
486 | } |
---|
487 | #if H_3D_DISABLE_CHROMA |
---|
488 | if( pcCU->getSlice()->getSPS()->getChromaFormatIdc() != 0 ) |
---|
489 | { |
---|
490 | #endif |
---|
491 | piPCMSample = pcCU->getPCMSampleCb() + uiChromaOffset; |
---|
492 | uiWidth = pcCU->getWidth(uiAbsPartIdx)/2; |
---|
493 | uiHeight = pcCU->getHeight(uiAbsPartIdx)/2; |
---|
494 | uiSampleBits = pcCU->getSlice()->getSPS()->getPCMBitDepthChroma(); |
---|
495 | |
---|
496 | for(uiY = 0; uiY < uiHeight; uiY++) |
---|
497 | { |
---|
498 | for(uiX = 0; uiX < uiWidth; uiX++) |
---|
499 | { |
---|
500 | UInt uiSample; |
---|
501 | m_pcTDecBinIf->xReadPCMCode(uiSampleBits, uiSample); |
---|
502 | piPCMSample[uiX] = uiSample; |
---|
503 | } |
---|
504 | piPCMSample += uiWidth; |
---|
505 | } |
---|
506 | |
---|
507 | piPCMSample = pcCU->getPCMSampleCr() + uiChromaOffset; |
---|
508 | uiWidth = pcCU->getWidth(uiAbsPartIdx)/2; |
---|
509 | uiHeight = pcCU->getHeight(uiAbsPartIdx)/2; |
---|
510 | uiSampleBits = pcCU->getSlice()->getSPS()->getPCMBitDepthChroma(); |
---|
511 | |
---|
512 | for(uiY = 0; uiY < uiHeight; uiY++) |
---|
513 | { |
---|
514 | for(uiX = 0; uiX < uiWidth; uiX++) |
---|
515 | { |
---|
516 | UInt uiSample; |
---|
517 | m_pcTDecBinIf->xReadPCMCode(uiSampleBits, uiSample); |
---|
518 | piPCMSample[uiX] = uiSample; |
---|
519 | } |
---|
520 | piPCMSample += uiWidth; |
---|
521 | } |
---|
522 | #if H_3D_DISABLE_CHROMA |
---|
523 | } |
---|
524 | #endif |
---|
525 | m_pcTDecBinIf->start(); |
---|
526 | } |
---|
527 | } |
---|
528 | |
---|
529 | Void TDecSbac::parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
530 | { |
---|
531 | UInt uiSymbol; |
---|
532 | m_pcTDecBinIf->decodeBin( uiSymbol, m_CUTransquantBypassFlagSCModel.get( 0, 0, 0 ) ); |
---|
533 | #if H_MV_ENC_DEC_TRAC |
---|
534 | DTRACE_CU("cu_transquant_bypass_flag", uiSymbol); |
---|
535 | #endif |
---|
536 | pcCU->setCUTransquantBypassSubParts(uiSymbol ? true : false, uiAbsPartIdx, uiDepth); |
---|
537 | } |
---|
538 | |
---|
539 | /** parse skip flag |
---|
540 | * \param pcCU |
---|
541 | * \param uiAbsPartIdx |
---|
542 | * \param uiDepth |
---|
543 | * \returns Void |
---|
544 | */ |
---|
545 | Void TDecSbac::parseSkipFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
546 | { |
---|
547 | if( pcCU->getSlice()->isIntra() ) |
---|
548 | { |
---|
549 | return; |
---|
550 | } |
---|
551 | |
---|
552 | UInt uiSymbol = 0; |
---|
553 | UInt uiCtxSkip = pcCU->getCtxSkipFlag( uiAbsPartIdx ); |
---|
554 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUSkipFlagSCModel.get( 0, 0, uiCtxSkip ) ); |
---|
555 | #if !H_MV_ENC_DEC_TRAC |
---|
556 | DTRACE_CABAC_VL( g_nSymbolCounter++ ); |
---|
557 | DTRACE_CABAC_T( "\tSkipFlag" ); |
---|
558 | DTRACE_CABAC_T( "\tuiCtxSkip: "); |
---|
559 | DTRACE_CABAC_V( uiCtxSkip ); |
---|
560 | DTRACE_CABAC_T( "\tuiSymbol: "); |
---|
561 | DTRACE_CABAC_V( uiSymbol ); |
---|
562 | DTRACE_CABAC_T( "\n"); |
---|
563 | #endif |
---|
564 | |
---|
565 | if( uiSymbol ) |
---|
566 | { |
---|
567 | pcCU->setSkipFlagSubParts( true, uiAbsPartIdx, uiDepth ); |
---|
568 | pcCU->setPredModeSubParts( MODE_INTER, uiAbsPartIdx, uiDepth ); |
---|
569 | pcCU->setPartSizeSubParts( SIZE_2Nx2N, uiAbsPartIdx, uiDepth ); |
---|
570 | pcCU->setSizeSubParts( g_uiMaxCUWidth>>uiDepth, g_uiMaxCUHeight>>uiDepth, uiAbsPartIdx, uiDepth ); |
---|
571 | pcCU->setMergeFlagSubParts( true , uiAbsPartIdx, 0, uiDepth ); |
---|
572 | } |
---|
573 | #if H_MV_ENC_DEC_TRAC |
---|
574 | DTRACE_CU("cu_skip_flag", uiSymbol); |
---|
575 | #endif |
---|
576 | } |
---|
577 | #if H_3D |
---|
578 | Void TDecSbac::parseDIS( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
579 | { |
---|
580 | pcCU->setDISFlagSubParts( false, uiAbsPartIdx, uiDepth ); |
---|
581 | UInt uiSymbol = 0; |
---|
582 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUDISFlagSCModel.get( 0, 0, 0 ) ); |
---|
583 | if( uiSymbol ) |
---|
584 | { |
---|
585 | pcCU->setDISFlagSubParts( true, uiAbsPartIdx, uiDepth ); |
---|
586 | pcCU->setSkipFlagSubParts( false, uiAbsPartIdx, uiDepth ); |
---|
587 | pcCU->setSDCFlagSubParts( false, uiAbsPartIdx, uiDepth ); |
---|
588 | pcCU->setPredModeSubParts( MODE_INTRA, uiAbsPartIdx, uiDepth ); |
---|
589 | pcCU->setPartSizeSubParts( SIZE_2Nx2N, uiAbsPartIdx, uiDepth ); |
---|
590 | pcCU->setLumaIntraDirSubParts (DC_IDX, uiAbsPartIdx, uiDepth ); |
---|
591 | pcCU->setSizeSubParts( g_uiMaxCUWidth>>uiDepth, g_uiMaxCUHeight>>uiDepth, uiAbsPartIdx, uiDepth ); |
---|
592 | pcCU->setMergeFlagSubParts( false , uiAbsPartIdx, 0, uiDepth ); |
---|
593 | pcCU->setTrIdxSubParts(0, uiAbsPartIdx, uiDepth); |
---|
594 | pcCU->setCbfSubParts(0, 1, 1, uiAbsPartIdx, uiDepth); |
---|
595 | |
---|
596 | UInt uiUnaryIdx = 0; |
---|
597 | UInt uiNumCand = 4; |
---|
598 | |
---|
599 | if ( uiNumCand > 1 ) |
---|
600 | { |
---|
601 | for( ; uiUnaryIdx < uiNumCand - 1; ++uiUnaryIdx ) |
---|
602 | { |
---|
603 | UInt uiSymbol2 = 0; |
---|
604 | if ( uiUnaryIdx==0 ) |
---|
605 | { |
---|
606 | m_pcTDecBinIf->decodeBin( uiSymbol2, m_cCUDISTypeSCModel.get( 0, 0, 0 ) ); |
---|
607 | } |
---|
608 | else |
---|
609 | { |
---|
610 | m_pcTDecBinIf->decodeBinEP( uiSymbol2); |
---|
611 | } |
---|
612 | if( uiSymbol2 == 0 ) |
---|
613 | { |
---|
614 | break; |
---|
615 | } |
---|
616 | } |
---|
617 | } |
---|
618 | pcCU->setDISTypeSubParts(uiUnaryIdx, uiAbsPartIdx, 0, uiDepth); |
---|
619 | } |
---|
620 | } |
---|
621 | #endif |
---|
622 | /** parse merge flag |
---|
623 | * \param pcCU |
---|
624 | * \param uiAbsPartIdx |
---|
625 | * \param uiDepth |
---|
626 | * \param uiPUIdx |
---|
627 | * \returns Void |
---|
628 | */ |
---|
629 | Void TDecSbac::parseMergeFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx ) |
---|
630 | { |
---|
631 | UInt uiSymbol; |
---|
632 | m_pcTDecBinIf->decodeBin( uiSymbol, *m_cCUMergeFlagExtSCModel.get( 0 ) ); |
---|
633 | #if H_MV_ENC_DEC_TRAC |
---|
634 | DTRACE_PU("merge_flag", uiSymbol) |
---|
635 | #endif |
---|
636 | pcCU->setMergeFlagSubParts( uiSymbol ? true : false, uiAbsPartIdx, uiPUIdx, uiDepth ); |
---|
637 | |
---|
638 | #if !H_MV_ENC_DEC_TRAC |
---|
639 | DTRACE_CABAC_VL( g_nSymbolCounter++ ); |
---|
640 | DTRACE_CABAC_T( "\tMergeFlag: " ); |
---|
641 | DTRACE_CABAC_V( uiSymbol ); |
---|
642 | DTRACE_CABAC_T( "\tAddress: " ); |
---|
643 | DTRACE_CABAC_V( pcCU->getAddr() ); |
---|
644 | DTRACE_CABAC_T( "\tuiAbsPartIdx: " ); |
---|
645 | DTRACE_CABAC_V( uiAbsPartIdx ); |
---|
646 | DTRACE_CABAC_T( "\n" ); |
---|
647 | #endif |
---|
648 | } |
---|
649 | |
---|
650 | Void TDecSbac::parseMergeIndex ( TComDataCU* pcCU, UInt& ruiMergeIndex ) |
---|
651 | { |
---|
652 | UInt uiUnaryIdx = 0; |
---|
653 | UInt uiNumCand = pcCU->getSlice()->getMaxNumMergeCand(); |
---|
654 | if ( uiNumCand > 1 ) |
---|
655 | { |
---|
656 | for( ; uiUnaryIdx < uiNumCand - 1; ++uiUnaryIdx ) |
---|
657 | { |
---|
658 | UInt uiSymbol = 0; |
---|
659 | if ( uiUnaryIdx==0 ) |
---|
660 | { |
---|
661 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUMergeIdxExtSCModel.get( 0, 0, 0 ) ); |
---|
662 | } |
---|
663 | else |
---|
664 | { |
---|
665 | m_pcTDecBinIf->decodeBinEP( uiSymbol ); |
---|
666 | } |
---|
667 | if( uiSymbol == 0 ) |
---|
668 | { |
---|
669 | break; |
---|
670 | } |
---|
671 | } |
---|
672 | #if H_MV_ENC_DEC_TRAC |
---|
673 | DTRACE_PU("merge_idx", uiUnaryIdx) |
---|
674 | #endif |
---|
675 | } |
---|
676 | ruiMergeIndex = uiUnaryIdx; |
---|
677 | |
---|
678 | #if !H_MV_ENC_DEC_TRAC |
---|
679 | DTRACE_CABAC_VL( g_nSymbolCounter++ ) |
---|
680 | DTRACE_CABAC_T( "\tparseMergeIndex()" ) |
---|
681 | DTRACE_CABAC_T( "\tuiMRGIdx= " ) |
---|
682 | DTRACE_CABAC_V( ruiMergeIndex ) |
---|
683 | DTRACE_CABAC_T( "\n" ) |
---|
684 | #endif |
---|
685 | } |
---|
686 | |
---|
687 | Void TDecSbac::parseMVPIdx ( Int& riMVPIdx ) |
---|
688 | { |
---|
689 | UInt uiSymbol; |
---|
690 | xReadUnaryMaxSymbol(uiSymbol, m_cMVPIdxSCModel.get(0), 1, AMVP_MAX_NUM_CANDS-1); |
---|
691 | riMVPIdx = uiSymbol; |
---|
692 | } |
---|
693 | |
---|
694 | Void TDecSbac::parseSplitFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
695 | { |
---|
696 | if( uiDepth == g_uiMaxCUDepth - g_uiAddCUDepth ) |
---|
697 | { |
---|
698 | pcCU->setDepthSubParts( uiDepth, uiAbsPartIdx ); |
---|
699 | return; |
---|
700 | } |
---|
701 | |
---|
702 | UInt uiSymbol; |
---|
703 | #if H_3D_QTLPC |
---|
704 | Bool bParseSplitFlag = true; |
---|
705 | Bool bLimQtPredFlag = pcCU->getPic()->getSlice(0)->getQtPredFlag(); |
---|
706 | TComPic *pcTexture = pcCU->getSlice()->getTexturePic(); |
---|
707 | Bool bDepthMapDetect = (pcTexture != NULL); |
---|
708 | Bool bIntraSliceDetect = (pcCU->getSlice()->getSliceType() == I_SLICE); |
---|
709 | |
---|
710 | Bool rapPic = (pcCU->getSlice()->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_W_RADL || pcCU->getSlice()->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_N_LP || pcCU->getSlice()->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA); |
---|
711 | |
---|
712 | #if H_3D_FCO |
---|
713 | if(bDepthMapDetect && !bIntraSliceDetect && !rapPic && bLimQtPredFlag && pcTexture->getReconMark()) |
---|
714 | #else |
---|
715 | if(bDepthMapDetect && !bIntraSliceDetect && !rapPic && bLimQtPredFlag) |
---|
716 | #endif |
---|
717 | { |
---|
718 | TComDataCU *pcTextureCU = pcTexture->getCU(pcCU->getAddr()); |
---|
719 | assert(pcTextureCU->getDepth(uiAbsPartIdx) >= uiDepth); |
---|
720 | bParseSplitFlag = (pcTextureCU->getDepth(uiAbsPartIdx) > uiDepth); |
---|
721 | } |
---|
722 | |
---|
723 | if(bParseSplitFlag) |
---|
724 | { |
---|
725 | #endif |
---|
726 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUSplitFlagSCModel.get( 0, 0, pcCU->getCtxSplitFlag( uiAbsPartIdx, uiDepth ) ) ); |
---|
727 | #if H_MV_ENC_DEC_TRAC |
---|
728 | DTRACE_CU("split_cu_flag", uiSymbol); |
---|
729 | #else |
---|
730 | DTRACE_CABAC_VL( g_nSymbolCounter++ ) |
---|
731 | DTRACE_CABAC_T( "\tSplitFlag\n" ) |
---|
732 | #endif |
---|
733 | #if H_3D_QTLPC |
---|
734 | } |
---|
735 | else |
---|
736 | { |
---|
737 | uiSymbol = 0; |
---|
738 | } |
---|
739 | #endif |
---|
740 | pcCU->setDepthSubParts( uiDepth + uiSymbol, uiAbsPartIdx ); |
---|
741 | |
---|
742 | return; |
---|
743 | } |
---|
744 | |
---|
745 | /** parse partition size |
---|
746 | * \param pcCU |
---|
747 | * \param uiAbsPartIdx |
---|
748 | * \param uiDepth |
---|
749 | * \returns Void |
---|
750 | */ |
---|
751 | Void TDecSbac::parsePartSize( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
752 | { |
---|
753 | UInt uiSymbol, uiMode = 0; |
---|
754 | PartSize eMode; |
---|
755 | |
---|
756 | #if H_3D_QTLPC |
---|
757 | Bool bParsePartSize = true; |
---|
758 | |
---|
759 | Bool bLimQtPredFlag = pcCU->getPic()->getSlice(0)->getQtPredFlag(); |
---|
760 | TComPic *pcTexture = pcCU->getSlice()->getTexturePic(); |
---|
761 | Bool bDepthMapDetect = (pcTexture != NULL); |
---|
762 | Bool bIntraSliceDetect = (pcCU->getSlice()->getSliceType() == I_SLICE); |
---|
763 | |
---|
764 | Bool rapPic = (pcCU->getSlice()->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_W_RADL || pcCU->getSlice()->getNalUnitType() == NAL_UNIT_CODED_SLICE_IDR_N_LP || pcCU->getSlice()->getNalUnitType() == NAL_UNIT_CODED_SLICE_CRA); |
---|
765 | |
---|
766 | Bool depthDependent = false; |
---|
767 | UInt uiTexturePart = uiMode; |
---|
768 | |
---|
769 | #if H_3D_FCO |
---|
770 | if(bDepthMapDetect && !bIntraSliceDetect && !rapPic && bLimQtPredFlag && pcTexture->getReconMark()) |
---|
771 | #else |
---|
772 | if(bDepthMapDetect && !bIntraSliceDetect && !rapPic && bLimQtPredFlag ) |
---|
773 | #endif |
---|
774 | { |
---|
775 | TComDataCU *pcTextureCU = pcTexture->getCU(pcCU->getAddr()); |
---|
776 | assert(pcTextureCU->getDepth(uiAbsPartIdx) >= uiDepth); |
---|
777 | if(pcTextureCU->getDepth(uiAbsPartIdx) == uiDepth ) |
---|
778 | { |
---|
779 | depthDependent = true; |
---|
780 | uiTexturePart = pcTextureCU->getPartitionSize( uiAbsPartIdx ); |
---|
781 | } |
---|
782 | if (pcTextureCU->getDepth(uiAbsPartIdx) == uiDepth && pcTextureCU->getPartitionSize( uiAbsPartIdx ) == SIZE_2Nx2N) |
---|
783 | { |
---|
784 | bParsePartSize = false; |
---|
785 | eMode = SIZE_2Nx2N; |
---|
786 | } |
---|
787 | } |
---|
788 | #endif |
---|
789 | |
---|
790 | |
---|
791 | if ( pcCU->isIntra( uiAbsPartIdx ) ) |
---|
792 | { |
---|
793 | #if H_3D_QTLPC |
---|
794 | if(bParsePartSize) |
---|
795 | { |
---|
796 | #endif |
---|
797 | uiSymbol = 1; |
---|
798 | if( uiDepth == g_uiMaxCUDepth - g_uiAddCUDepth ) |
---|
799 | { |
---|
800 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUPartSizeSCModel.get( 0, 0, 0) ); |
---|
801 | #if H_MV_ENC_DEC_TRAC |
---|
802 | DTRACE_CU("part_mode", uiSymbol) |
---|
803 | #endif |
---|
804 | } |
---|
805 | eMode = uiSymbol ? SIZE_2Nx2N : SIZE_NxN; |
---|
806 | #if H_3D_QTLPC |
---|
807 | } |
---|
808 | #endif |
---|
809 | UInt uiTrLevel = 0; |
---|
810 | UInt uiWidthInBit = g_aucConvertToBit[pcCU->getWidth(uiAbsPartIdx)]+2; |
---|
811 | UInt uiTrSizeInBit = g_aucConvertToBit[pcCU->getSlice()->getSPS()->getMaxTrSize()]+2; |
---|
812 | uiTrLevel = uiWidthInBit >= uiTrSizeInBit ? uiWidthInBit - uiTrSizeInBit : 0; |
---|
813 | if( eMode == SIZE_NxN ) |
---|
814 | { |
---|
815 | pcCU->setTrIdxSubParts( 1+uiTrLevel, uiAbsPartIdx, uiDepth ); |
---|
816 | } |
---|
817 | else |
---|
818 | { |
---|
819 | pcCU->setTrIdxSubParts( uiTrLevel, uiAbsPartIdx, uiDepth ); |
---|
820 | } |
---|
821 | } |
---|
822 | else |
---|
823 | { |
---|
824 | #if H_3D_QTLPC |
---|
825 | if(bParsePartSize) |
---|
826 | { |
---|
827 | if (depthDependent==false || uiTexturePart == SIZE_NxN|| uiTexturePart == SIZE_2Nx2N) |
---|
828 | { |
---|
829 | #endif |
---|
830 | UInt uiMaxNumBits = 2; |
---|
831 | if( uiDepth == g_uiMaxCUDepth - g_uiAddCUDepth && !( (g_uiMaxCUWidth>>uiDepth) == 8 && (g_uiMaxCUHeight>>uiDepth) == 8 ) ) |
---|
832 | { |
---|
833 | uiMaxNumBits ++; |
---|
834 | } |
---|
835 | for ( UInt ui = 0; ui < uiMaxNumBits; ui++ ) |
---|
836 | { |
---|
837 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUPartSizeSCModel.get( 0, 0, ui) ); |
---|
838 | if ( uiSymbol ) |
---|
839 | { |
---|
840 | break; |
---|
841 | } |
---|
842 | uiMode++; |
---|
843 | } |
---|
844 | eMode = (PartSize) uiMode; |
---|
845 | if ( pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth ) ) |
---|
846 | { |
---|
847 | if (eMode == SIZE_2NxN) |
---|
848 | { |
---|
849 | m_pcTDecBinIf->decodeBin(uiSymbol, m_cCUPartSizeSCModel.get( 0, 0, 3 )); |
---|
850 | if (uiSymbol == 0) |
---|
851 | { |
---|
852 | m_pcTDecBinIf->decodeBinEP(uiSymbol); |
---|
853 | eMode = (uiSymbol == 0? SIZE_2NxnU : SIZE_2NxnD); |
---|
854 | } |
---|
855 | } |
---|
856 | else if (eMode == SIZE_Nx2N) |
---|
857 | { |
---|
858 | m_pcTDecBinIf->decodeBin(uiSymbol, m_cCUPartSizeSCModel.get( 0, 0, 3 )); |
---|
859 | if (uiSymbol == 0) |
---|
860 | { |
---|
861 | m_pcTDecBinIf->decodeBinEP(uiSymbol); |
---|
862 | eMode = (uiSymbol == 0? SIZE_nLx2N : SIZE_nRx2N); |
---|
863 | } |
---|
864 | } |
---|
865 | } |
---|
866 | #if H_3D_QTLPC |
---|
867 | } |
---|
868 | else if(uiTexturePart == SIZE_2NxN || uiTexturePart == SIZE_2NxnU || uiTexturePart == SIZE_2NxnD) |
---|
869 | { |
---|
870 | UInt uiMaxNumBits = 1; |
---|
871 | if ( pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth ) ) |
---|
872 | { |
---|
873 | uiMaxNumBits ++; |
---|
874 | } |
---|
875 | for ( UInt ui = 0; ui < uiMaxNumBits; ui++ ) |
---|
876 | { |
---|
877 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUPartSizeSCModel.get( 0, 0, ui) ); |
---|
878 | if ( uiSymbol ) |
---|
879 | { |
---|
880 | break; |
---|
881 | } |
---|
882 | uiMode++; |
---|
883 | } |
---|
884 | eMode = (PartSize) uiMode; |
---|
885 | if(uiMode && pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth ) && uiSymbol==1 ) |
---|
886 | { |
---|
887 | eMode = SIZE_2NxN; |
---|
888 | } |
---|
889 | else if (uiMode && pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth )==0 && uiSymbol==0) |
---|
890 | { |
---|
891 | eMode = SIZE_2NxN; |
---|
892 | } |
---|
893 | else if (uiMode && pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth ) && uiSymbol==0) |
---|
894 | { |
---|
895 | m_pcTDecBinIf->decodeBinEP(uiSymbol); |
---|
896 | eMode = (uiSymbol == 0? SIZE_2NxnU : SIZE_2NxnD); |
---|
897 | } |
---|
898 | } |
---|
899 | else if(uiTexturePart == SIZE_Nx2N|| uiTexturePart==SIZE_nLx2N || uiTexturePart==SIZE_nRx2N) |
---|
900 | { |
---|
901 | UInt uiMaxNumBits = 1; |
---|
902 | if ( pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth ) ) |
---|
903 | { |
---|
904 | uiMaxNumBits ++; |
---|
905 | } |
---|
906 | for ( UInt ui = 0; ui < uiMaxNumBits; ui++ ) |
---|
907 | { |
---|
908 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUPartSizeSCModel.get( 0, 0, ui) ); |
---|
909 | if ( uiSymbol ) |
---|
910 | { |
---|
911 | break; |
---|
912 | } |
---|
913 | uiMode++; |
---|
914 | } |
---|
915 | eMode = (PartSize) uiMode; |
---|
916 | if(uiMode && pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth ) && uiSymbol==1 ) |
---|
917 | { |
---|
918 | eMode = SIZE_Nx2N; |
---|
919 | } |
---|
920 | else if (uiMode && pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth )==0 && uiSymbol==0) |
---|
921 | { |
---|
922 | eMode = SIZE_Nx2N; |
---|
923 | } |
---|
924 | else if (uiMode && pcCU->getSlice()->getSPS()->getAMPAcc( uiDepth ) && uiSymbol==0) |
---|
925 | { |
---|
926 | m_pcTDecBinIf->decodeBinEP(uiSymbol); |
---|
927 | eMode = (uiSymbol == 0? SIZE_nLx2N : SIZE_nRx2N); |
---|
928 | } |
---|
929 | } |
---|
930 | else |
---|
931 | { |
---|
932 | assert(0); |
---|
933 | } |
---|
934 | #endif |
---|
935 | #if H_MV_ENC_DEC_TRAC |
---|
936 | DTRACE_CU("part_mode", eMode ) |
---|
937 | #endif |
---|
938 | #if H_3D_QTLPC |
---|
939 | } |
---|
940 | #endif |
---|
941 | } |
---|
942 | pcCU->setPartSizeSubParts( eMode, uiAbsPartIdx, uiDepth ); |
---|
943 | pcCU->setSizeSubParts( g_uiMaxCUWidth>>uiDepth, g_uiMaxCUHeight>>uiDepth, uiAbsPartIdx, uiDepth ); |
---|
944 | } |
---|
945 | |
---|
946 | /** parse prediction mode |
---|
947 | * \param pcCU |
---|
948 | * \param uiAbsPartIdx |
---|
949 | * \param uiDepth |
---|
950 | * \returns Void |
---|
951 | */ |
---|
952 | Void TDecSbac::parsePredMode( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
953 | { |
---|
954 | if( pcCU->getSlice()->isIntra() ) |
---|
955 | { |
---|
956 | pcCU->setPredModeSubParts( MODE_INTRA, uiAbsPartIdx, uiDepth ); |
---|
957 | return; |
---|
958 | } |
---|
959 | |
---|
960 | UInt uiSymbol; |
---|
961 | Int iPredMode = MODE_INTER; |
---|
962 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUPredModeSCModel.get( 0, 0, 0 ) ); |
---|
963 | iPredMode += uiSymbol; |
---|
964 | #if H_MV_ENC_DEC_TRAC |
---|
965 | DTRACE_CU("pred_mode_flag", uiSymbol) |
---|
966 | #endif |
---|
967 | pcCU->setPredModeSubParts( (PredMode)iPredMode, uiAbsPartIdx, uiDepth ); |
---|
968 | } |
---|
969 | |
---|
970 | Void TDecSbac::parseIntraDirLumaAng ( TComDataCU* pcCU, UInt absPartIdx, UInt depth ) |
---|
971 | { |
---|
972 | PartSize mode = pcCU->getPartitionSize( absPartIdx ); |
---|
973 | UInt partNum = mode==SIZE_NxN?4:1; |
---|
974 | UInt partOffset = ( pcCU->getPic()->getNumPartInCU() >> ( pcCU->getDepth(absPartIdx) << 1 ) ) >> 2; |
---|
975 | UInt mpmPred[4],symbol; |
---|
976 | Int j,intraPredMode; |
---|
977 | if (mode==SIZE_NxN) |
---|
978 | { |
---|
979 | depth++; |
---|
980 | } |
---|
981 | for (j=0;j<partNum;j++) |
---|
982 | { |
---|
983 | #if H_3D_DIM |
---|
984 | if( pcCU->getSlice()->getIntraSdcWedgeFlag() || pcCU->getSlice()->getIntraContourFlag() ) |
---|
985 | { |
---|
986 | parseIntraDepth( pcCU, absPartIdx+partOffset*j, depth ); |
---|
987 | } |
---|
988 | if( pcCU->getLumaIntraDir( absPartIdx+partOffset*j ) < NUM_INTRA_MODE ) |
---|
989 | { |
---|
990 | #endif |
---|
991 | m_pcTDecBinIf->decodeBin( symbol, m_cCUIntraPredSCModel.get( 0, 0, 0) ); |
---|
992 | mpmPred[j] = symbol; |
---|
993 | #if H_MV_ENC_DEC_TRAC |
---|
994 | DTRACE_CU("prev_intra_luma_pred_flag", symbol) |
---|
995 | #endif |
---|
996 | #if H_3D_DIM |
---|
997 | } |
---|
998 | #endif |
---|
999 | } |
---|
1000 | for (j=0;j<partNum;j++) |
---|
1001 | { |
---|
1002 | #if H_3D_DIM |
---|
1003 | if( pcCU->getLumaIntraDir( absPartIdx+partOffset*j ) < NUM_INTRA_MODE ) |
---|
1004 | { |
---|
1005 | #endif |
---|
1006 | Int preds[3] = {-1, -1, -1}; |
---|
1007 | Int predNum = pcCU->getIntraDirLumaPredictor(absPartIdx+partOffset*j, preds); |
---|
1008 | if (mpmPred[j]) |
---|
1009 | { |
---|
1010 | m_pcTDecBinIf->decodeBinEP( symbol ); |
---|
1011 | if (symbol) |
---|
1012 | { |
---|
1013 | m_pcTDecBinIf->decodeBinEP( symbol ); |
---|
1014 | symbol++; |
---|
1015 | } |
---|
1016 | #if H_MV_ENC_DEC_TRAC |
---|
1017 | DTRACE_CU("mpm_idx", symbol) |
---|
1018 | #endif |
---|
1019 | intraPredMode = preds[symbol]; |
---|
1020 | } |
---|
1021 | else |
---|
1022 | { |
---|
1023 | m_pcTDecBinIf->decodeBinsEP( symbol, 5 ); |
---|
1024 | intraPredMode = symbol; |
---|
1025 | #if H_MV_ENC_DEC_TRAC |
---|
1026 | DTRACE_CU("rem_intra_luma_pred_mode", symbol) |
---|
1027 | #endif |
---|
1028 | //postponed sorting of MPMs (only in remaining branch) |
---|
1029 | if (preds[0] > preds[1]) |
---|
1030 | { |
---|
1031 | std::swap(preds[0], preds[1]); |
---|
1032 | } |
---|
1033 | if (preds[0] > preds[2]) |
---|
1034 | { |
---|
1035 | std::swap(preds[0], preds[2]); |
---|
1036 | } |
---|
1037 | if (preds[1] > preds[2]) |
---|
1038 | { |
---|
1039 | std::swap(preds[1], preds[2]); |
---|
1040 | } |
---|
1041 | for ( Int i = 0; i < predNum; i++ ) |
---|
1042 | { |
---|
1043 | intraPredMode += ( intraPredMode >= preds[i] ); |
---|
1044 | } |
---|
1045 | } |
---|
1046 | pcCU->setLumaIntraDirSubParts( (UChar)intraPredMode, absPartIdx+partOffset*j, depth ); |
---|
1047 | #if H_3D_DIM |
---|
1048 | } |
---|
1049 | #endif |
---|
1050 | } |
---|
1051 | } |
---|
1052 | |
---|
1053 | Void TDecSbac::parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
1054 | { |
---|
1055 | UInt uiSymbol; |
---|
1056 | |
---|
1057 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUChromaPredSCModel.get( 0, 0, 0 ) ); |
---|
1058 | |
---|
1059 | if( uiSymbol == 0 ) |
---|
1060 | { |
---|
1061 | #if H_MV_ENC_DEC_TRAC |
---|
1062 | DTRACE_CU("intra_chroma_pred_mode", uiSymbol ) |
---|
1063 | #endif |
---|
1064 | uiSymbol = DM_CHROMA_IDX; |
---|
1065 | } |
---|
1066 | else |
---|
1067 | { |
---|
1068 | { |
---|
1069 | UInt uiIPredMode; |
---|
1070 | m_pcTDecBinIf->decodeBinsEP( uiIPredMode, 2 ); |
---|
1071 | #if H_MV_ENC_DEC_TRAC |
---|
1072 | DTRACE_CU("intra_chroma_pred_mode", uiIPredMode ) |
---|
1073 | #endif |
---|
1074 | UInt uiAllowedChromaDir[ NUM_CHROMA_MODE ]; |
---|
1075 | pcCU->getAllowedChromaDir( uiAbsPartIdx, uiAllowedChromaDir ); |
---|
1076 | uiSymbol = uiAllowedChromaDir[ uiIPredMode ]; |
---|
1077 | } |
---|
1078 | } |
---|
1079 | pcCU->setChromIntraDirSubParts( uiSymbol, uiAbsPartIdx, uiDepth ); |
---|
1080 | return; |
---|
1081 | } |
---|
1082 | |
---|
1083 | #if H_3D_DIM |
---|
1084 | Void TDecSbac::parseIntraDepth( TComDataCU* pcCU, UInt absPartIdx, UInt depth ) |
---|
1085 | { |
---|
1086 | parseIntraDepthMode( pcCU, absPartIdx, depth ); |
---|
1087 | |
---|
1088 | UInt dir = pcCU->getLumaIntraDir( absPartIdx ); |
---|
1089 | UInt dimType = getDimType( dir ); |
---|
1090 | |
---|
1091 | switch( dimType ) |
---|
1092 | { |
---|
1093 | #if H_3D_DIM_DMM |
---|
1094 | case( DMM1_IDX ): |
---|
1095 | { |
---|
1096 | UInt uiTabIdx = 0; |
---|
1097 | xParseDmm1WedgeIdx( uiTabIdx, g_dmm1TabIdxBits[pcCU->getIntraSizeIdx(absPartIdx)] ); |
---|
1098 | |
---|
1099 | assert( uiTabIdx < g_dmmWedgeLists[ g_aucConvertToBit[ pcCU->getDMM1BasePatternWidth( pcCU->getWidth( absPartIdx ) )]].size()); |
---|
1100 | |
---|
1101 | pcCU->setDmmWedgeTabIdxSubParts( uiTabIdx, dimType, absPartIdx, depth ); |
---|
1102 | } break; |
---|
1103 | case( DMM4_IDX ): break; |
---|
1104 | #endif |
---|
1105 | default: break; |
---|
1106 | } |
---|
1107 | |
---|
1108 | pcCU->setLumaIntraDirSubParts( (UChar)dir, absPartIdx, depth ); |
---|
1109 | } |
---|
1110 | |
---|
1111 | Void TDecSbac::parseIntraDepthMode( TComDataCU* pcCU, UInt absPartIdx, UInt depth ) |
---|
1112 | { |
---|
1113 | UInt uiSymbol, uiIsDimMode; |
---|
1114 | |
---|
1115 | if( ( pcCU->getSlice()->getSPS()->getMaxCUWidth() >> pcCU->getDepth( absPartIdx ) ) < 64 ) //DMM and HEVC intra modes are both allowed |
---|
1116 | { |
---|
1117 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cAngleFlagSCModel.get( 0, 0, 0 ) ); |
---|
1118 | } |
---|
1119 | else |
---|
1120 | { |
---|
1121 | uiSymbol = 1; |
---|
1122 | } |
---|
1123 | uiIsDimMode = uiSymbol ? 0 : 1; |
---|
1124 | pcCU->setLumaIntraDirSubParts( 0, absPartIdx, depth ); |
---|
1125 | |
---|
1126 | //decode DMM index |
---|
1127 | if( uiIsDimMode ) |
---|
1128 | { |
---|
1129 | if( pcCU->getSlice()->getIntraSdcWedgeFlag() && pcCU->getSlice()->getIntraContourFlag() ) |
---|
1130 | { |
---|
1131 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cDepthIntraModeSCModel.get( 0, 0, 0 ) ); |
---|
1132 | if( !uiSymbol ) |
---|
1133 | { |
---|
1134 | pcCU->setLumaIntraDirSubParts( DIM_OFFSET, absPartIdx, depth ); |
---|
1135 | } |
---|
1136 | else |
---|
1137 | { |
---|
1138 | pcCU->setLumaIntraDirSubParts( ( 1+ DIM_OFFSET ), absPartIdx, depth ); |
---|
1139 | } |
---|
1140 | } |
---|
1141 | else if ( pcCU->getSlice()->getIntraSdcWedgeFlag() ) |
---|
1142 | { |
---|
1143 | pcCU->setLumaIntraDirSubParts( DIM_OFFSET, absPartIdx, depth ); |
---|
1144 | } |
---|
1145 | else if( pcCU->getSlice()->getIntraContourFlag() ) |
---|
1146 | { |
---|
1147 | pcCU->setLumaIntraDirSubParts( ( 1+ DIM_OFFSET ), absPartIdx, depth ); |
---|
1148 | } |
---|
1149 | } |
---|
1150 | } |
---|
1151 | #endif |
---|
1152 | |
---|
1153 | Void TDecSbac::parseInterDir( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx ) |
---|
1154 | { |
---|
1155 | UInt uiSymbol; |
---|
1156 | const UInt uiCtx = pcCU->getCtxInterDir( uiAbsPartIdx ); |
---|
1157 | ContextModel *pCtx = m_cCUInterDirSCModel.get( 0 ); |
---|
1158 | uiSymbol = 0; |
---|
1159 | if (pcCU->getPartitionSize(uiAbsPartIdx) == SIZE_2Nx2N || pcCU->getHeight(uiAbsPartIdx) != 8 ) |
---|
1160 | { |
---|
1161 | m_pcTDecBinIf->decodeBin( uiSymbol, *( pCtx + uiCtx ) ); |
---|
1162 | } |
---|
1163 | |
---|
1164 | if( uiSymbol ) |
---|
1165 | { |
---|
1166 | uiSymbol = 2; |
---|
1167 | } |
---|
1168 | else |
---|
1169 | { |
---|
1170 | m_pcTDecBinIf->decodeBin( uiSymbol, *( pCtx + 4 ) ); |
---|
1171 | assert(uiSymbol == 0 || uiSymbol == 1); |
---|
1172 | } |
---|
1173 | |
---|
1174 | uiSymbol++; |
---|
1175 | ruiInterDir = uiSymbol; |
---|
1176 | #if H_MV_ENC_DEC_TRAC |
---|
1177 | DTRACE_PU("inter_pred_idc", ruiInterDir - 1 ) |
---|
1178 | #endif |
---|
1179 | |
---|
1180 | return; |
---|
1181 | } |
---|
1182 | |
---|
1183 | Void TDecSbac::parseRefFrmIdx( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList ) |
---|
1184 | { |
---|
1185 | UInt uiSymbol; |
---|
1186 | { |
---|
1187 | ContextModel *pCtx = m_cCURefPicSCModel.get( 0 ); |
---|
1188 | m_pcTDecBinIf->decodeBin( uiSymbol, *pCtx ); |
---|
1189 | |
---|
1190 | if( uiSymbol ) |
---|
1191 | { |
---|
1192 | UInt uiRefNum = pcCU->getSlice()->getNumRefIdx( eRefList ) - 2; |
---|
1193 | pCtx++; |
---|
1194 | UInt ui; |
---|
1195 | for( ui = 0; ui < uiRefNum; ++ui ) |
---|
1196 | { |
---|
1197 | if( ui == 0 ) |
---|
1198 | { |
---|
1199 | m_pcTDecBinIf->decodeBin( uiSymbol, *pCtx ); |
---|
1200 | } |
---|
1201 | else |
---|
1202 | { |
---|
1203 | m_pcTDecBinIf->decodeBinEP( uiSymbol ); |
---|
1204 | } |
---|
1205 | if( uiSymbol == 0 ) |
---|
1206 | { |
---|
1207 | break; |
---|
1208 | } |
---|
1209 | } |
---|
1210 | uiSymbol = ui + 1; |
---|
1211 | } |
---|
1212 | riRefFrmIdx = uiSymbol; |
---|
1213 | } |
---|
1214 | |
---|
1215 | #if H_MV_ENC_DEC_TRAC |
---|
1216 | #if ENC_DEC_TRACE |
---|
1217 | if ( eRefList == REF_PIC_LIST_0 ) |
---|
1218 | { |
---|
1219 | DTRACE_PU("ref_idx_l0", uiSymbol) |
---|
1220 | } |
---|
1221 | else |
---|
1222 | { |
---|
1223 | DTRACE_PU("ref_idx_l1", uiSymbol) |
---|
1224 | } |
---|
1225 | #endif |
---|
1226 | #endif |
---|
1227 | return; |
---|
1228 | } |
---|
1229 | |
---|
1230 | Void TDecSbac::parseMvd( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList ) |
---|
1231 | { |
---|
1232 | UInt uiSymbol; |
---|
1233 | UInt uiHorAbs; |
---|
1234 | UInt uiVerAbs; |
---|
1235 | UInt uiHorSign = 0; |
---|
1236 | UInt uiVerSign = 0; |
---|
1237 | ContextModel *pCtx = m_cCUMvdSCModel.get( 0 ); |
---|
1238 | |
---|
1239 | if(pcCU->getSlice()->getMvdL1ZeroFlag() && eRefList == REF_PIC_LIST_1 && pcCU->getInterDir(uiAbsPartIdx)==3) |
---|
1240 | { |
---|
1241 | uiHorAbs=0; |
---|
1242 | uiVerAbs=0; |
---|
1243 | } |
---|
1244 | else |
---|
1245 | { |
---|
1246 | m_pcTDecBinIf->decodeBin( uiHorAbs, *pCtx ); |
---|
1247 | m_pcTDecBinIf->decodeBin( uiVerAbs, *pCtx ); |
---|
1248 | |
---|
1249 | const Bool bHorAbsGr0 = uiHorAbs != 0; |
---|
1250 | const Bool bVerAbsGr0 = uiVerAbs != 0; |
---|
1251 | pCtx++; |
---|
1252 | |
---|
1253 | if( bHorAbsGr0 ) |
---|
1254 | { |
---|
1255 | m_pcTDecBinIf->decodeBin( uiSymbol, *pCtx ); |
---|
1256 | uiHorAbs += uiSymbol; |
---|
1257 | } |
---|
1258 | |
---|
1259 | if( bVerAbsGr0 ) |
---|
1260 | { |
---|
1261 | m_pcTDecBinIf->decodeBin( uiSymbol, *pCtx ); |
---|
1262 | uiVerAbs += uiSymbol; |
---|
1263 | } |
---|
1264 | |
---|
1265 | if( bHorAbsGr0 ) |
---|
1266 | { |
---|
1267 | if( 2 == uiHorAbs ) |
---|
1268 | { |
---|
1269 | xReadEpExGolomb( uiSymbol, 1 ); |
---|
1270 | uiHorAbs += uiSymbol; |
---|
1271 | } |
---|
1272 | |
---|
1273 | m_pcTDecBinIf->decodeBinEP( uiHorSign ); |
---|
1274 | } |
---|
1275 | |
---|
1276 | if( bVerAbsGr0 ) |
---|
1277 | { |
---|
1278 | if( 2 == uiVerAbs ) |
---|
1279 | { |
---|
1280 | xReadEpExGolomb( uiSymbol, 1 ); |
---|
1281 | uiVerAbs += uiSymbol; |
---|
1282 | } |
---|
1283 | |
---|
1284 | m_pcTDecBinIf->decodeBinEP( uiVerSign ); |
---|
1285 | } |
---|
1286 | |
---|
1287 | } |
---|
1288 | |
---|
1289 | const TComMv cMv( uiHorSign ? -Int( uiHorAbs ): uiHorAbs, uiVerSign ? -Int( uiVerAbs ) : uiVerAbs ); |
---|
1290 | pcCU->getCUMvField( eRefList )->setAllMvd( cMv, pcCU->getPartitionSize( uiAbsPartIdx ), uiAbsPartIdx, uiDepth, uiPartIdx ); |
---|
1291 | return; |
---|
1292 | } |
---|
1293 | |
---|
1294 | |
---|
1295 | Void TDecSbac::parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize ) |
---|
1296 | { |
---|
1297 | m_pcTDecBinIf->decodeBin( ruiSubdivFlag, m_cCUTransSubdivFlagSCModel.get( 0, 0, uiLog2TransformBlockSize ) ); |
---|
1298 | #if !H_MV_ENC_DEC_TRAC |
---|
1299 | DTRACE_CABAC_VL( g_nSymbolCounter++ ) |
---|
1300 | DTRACE_CABAC_T( "\tparseTransformSubdivFlag()" ) |
---|
1301 | DTRACE_CABAC_T( "\tsymbol=" ) |
---|
1302 | DTRACE_CABAC_V( ruiSubdivFlag ) |
---|
1303 | DTRACE_CABAC_T( "\tctx=" ) |
---|
1304 | DTRACE_CABAC_V( uiLog2TransformBlockSize ) |
---|
1305 | DTRACE_CABAC_T( "\n" ) |
---|
1306 | #else |
---|
1307 | DTRACE_TU("split_transform_flag", ruiSubdivFlag ) |
---|
1308 | #endif |
---|
1309 | } |
---|
1310 | |
---|
1311 | Void TDecSbac::parseQtRootCbf( UInt uiAbsPartIdx, UInt& uiQtRootCbf ) |
---|
1312 | { |
---|
1313 | UInt uiSymbol; |
---|
1314 | const UInt uiCtx = 0; |
---|
1315 | m_pcTDecBinIf->decodeBin( uiSymbol , m_cCUQtRootCbfSCModel.get( 0, 0, uiCtx ) ); |
---|
1316 | #if !H_MV_ENC_DEC_TRAC |
---|
1317 | DTRACE_CABAC_VL( g_nSymbolCounter++ ) |
---|
1318 | DTRACE_CABAC_T( "\tparseQtRootCbf()" ) |
---|
1319 | DTRACE_CABAC_T( "\tsymbol=" ) |
---|
1320 | DTRACE_CABAC_V( uiSymbol ) |
---|
1321 | DTRACE_CABAC_T( "\tctx=" ) |
---|
1322 | DTRACE_CABAC_V( uiCtx ) |
---|
1323 | DTRACE_CABAC_T( "\tuiAbsPartIdx=" ) |
---|
1324 | DTRACE_CABAC_V( uiAbsPartIdx ) |
---|
1325 | DTRACE_CABAC_T( "\n" ) |
---|
1326 | #else |
---|
1327 | DTRACE_CU( "rqt_root_cbf", uiSymbol ) |
---|
1328 | #endif |
---|
1329 | |
---|
1330 | uiQtRootCbf = uiSymbol; |
---|
1331 | } |
---|
1332 | |
---|
1333 | Void TDecSbac::parseDeltaQP( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
1334 | { |
---|
1335 | Int qp; |
---|
1336 | UInt uiDQp; |
---|
1337 | Int iDQp; |
---|
1338 | |
---|
1339 | UInt uiSymbol; |
---|
1340 | |
---|
1341 | xReadUnaryMaxSymbol (uiDQp, &m_cCUDeltaQpSCModel.get( 0, 0, 0 ), 1, CU_DQP_TU_CMAX); |
---|
1342 | |
---|
1343 | if( uiDQp >= CU_DQP_TU_CMAX) |
---|
1344 | { |
---|
1345 | xReadEpExGolomb( uiSymbol, CU_DQP_EG_k ); |
---|
1346 | uiDQp+=uiSymbol; |
---|
1347 | } |
---|
1348 | |
---|
1349 | if ( uiDQp > 0 ) |
---|
1350 | { |
---|
1351 | UInt uiSign; |
---|
1352 | Int qpBdOffsetY = pcCU->getSlice()->getSPS()->getQpBDOffsetY(); |
---|
1353 | m_pcTDecBinIf->decodeBinEP(uiSign); |
---|
1354 | iDQp = uiDQp; |
---|
1355 | if(uiSign) |
---|
1356 | { |
---|
1357 | iDQp = -iDQp; |
---|
1358 | } |
---|
1359 | qp = (((Int) pcCU->getRefQP( uiAbsPartIdx ) + iDQp + 52 + 2*qpBdOffsetY )%(52+qpBdOffsetY)) - qpBdOffsetY; |
---|
1360 | } |
---|
1361 | else |
---|
1362 | { |
---|
1363 | qp = pcCU->getRefQP(uiAbsPartIdx); |
---|
1364 | } |
---|
1365 | pcCU->setQPSubParts(qp, uiAbsPartIdx, uiDepth); |
---|
1366 | pcCU->setCodedQP(qp); |
---|
1367 | } |
---|
1368 | |
---|
1369 | Void TDecSbac::parseQtCbf( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth ) |
---|
1370 | { |
---|
1371 | UInt uiSymbol; |
---|
1372 | const UInt uiCtx = pcCU->getCtxQtCbf( eType, uiTrDepth ); |
---|
1373 | m_pcTDecBinIf->decodeBin( uiSymbol , m_cCUQtCbfSCModel.get( 0, eType ? TEXT_CHROMA: eType, uiCtx ) ); |
---|
1374 | #if !H_MV_ENC_DEC_TRAC |
---|
1375 | DTRACE_CABAC_VL( g_nSymbolCounter++ ) |
---|
1376 | DTRACE_CABAC_T( "\tparseQtCbf()" ) |
---|
1377 | DTRACE_CABAC_T( "\tsymbol=" ) |
---|
1378 | DTRACE_CABAC_V( uiSymbol ) |
---|
1379 | DTRACE_CABAC_T( "\tctx=" ) |
---|
1380 | DTRACE_CABAC_V( uiCtx ) |
---|
1381 | DTRACE_CABAC_T( "\tetype=" ) |
---|
1382 | DTRACE_CABAC_V( eType ) |
---|
1383 | DTRACE_CABAC_T( "\tuiAbsPartIdx=" ) |
---|
1384 | DTRACE_CABAC_V( uiAbsPartIdx ) |
---|
1385 | DTRACE_CABAC_T( "\n" ) |
---|
1386 | #else |
---|
1387 | if ( eType == TEXT_CHROMA_U ) |
---|
1388 | { |
---|
1389 | DTRACE_TU("cbf_cb", uiSymbol ) |
---|
1390 | } |
---|
1391 | else if ( eType == TEXT_CHROMA_V ) |
---|
1392 | { |
---|
1393 | DTRACE_TU("cbf_cr", uiSymbol ) |
---|
1394 | } |
---|
1395 | else |
---|
1396 | { |
---|
1397 | DTRACE_TU("cbf_luma", uiSymbol ) |
---|
1398 | } |
---|
1399 | #endif |
---|
1400 | |
---|
1401 | pcCU->setCbfSubParts( uiSymbol << uiTrDepth, eType, uiAbsPartIdx, uiDepth ); |
---|
1402 | } |
---|
1403 | |
---|
1404 | void TDecSbac::parseTransformSkipFlags (TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType) |
---|
1405 | { |
---|
1406 | if (pcCU->getCUTransquantBypass(uiAbsPartIdx)) |
---|
1407 | { |
---|
1408 | return; |
---|
1409 | } |
---|
1410 | if(width != 4 || height != 4) |
---|
1411 | { |
---|
1412 | return; |
---|
1413 | } |
---|
1414 | |
---|
1415 | UInt useTransformSkip; |
---|
1416 | m_pcTDecBinIf->decodeBin( useTransformSkip , m_cTransformSkipSCModel.get( 0, eTType? TEXT_CHROMA: TEXT_LUMA, 0 ) ); |
---|
1417 | if(eTType!= TEXT_LUMA) |
---|
1418 | { |
---|
1419 | const UInt uiLog2TrafoSize = g_aucConvertToBit[pcCU->getSlice()->getSPS()->getMaxCUWidth()] + 2 - uiDepth; |
---|
1420 | if(uiLog2TrafoSize == 2) |
---|
1421 | { |
---|
1422 | uiDepth --; |
---|
1423 | } |
---|
1424 | } |
---|
1425 | #if !H_MV_ENC_DEC_TRAC |
---|
1426 | DTRACE_CABAC_VL( g_nSymbolCounter++ ) |
---|
1427 | DTRACE_CABAC_T("\tparseTransformSkip()"); |
---|
1428 | DTRACE_CABAC_T( "\tsymbol=" ) |
---|
1429 | DTRACE_CABAC_V( useTransformSkip ) |
---|
1430 | DTRACE_CABAC_T( "\tAddr=" ) |
---|
1431 | DTRACE_CABAC_V( pcCU->getAddr() ) |
---|
1432 | DTRACE_CABAC_T( "\tetype=" ) |
---|
1433 | DTRACE_CABAC_V( eTType ) |
---|
1434 | DTRACE_CABAC_T( "\tuiAbsPartIdx=" ) |
---|
1435 | DTRACE_CABAC_V( uiAbsPartIdx ) |
---|
1436 | DTRACE_CABAC_T( "\n" ) |
---|
1437 | #endif |
---|
1438 | |
---|
1439 | pcCU->setTransformSkipSubParts( useTransformSkip, eTType, uiAbsPartIdx, uiDepth); |
---|
1440 | } |
---|
1441 | |
---|
1442 | /** Parse (X,Y) position of the last significant coefficient |
---|
1443 | * \param uiPosLastX reference to X component of last coefficient |
---|
1444 | * \param uiPosLastY reference to Y component of last coefficient |
---|
1445 | * \param width Block width |
---|
1446 | * \param height Block height |
---|
1447 | * \param eTType plane type / luminance or chrominance |
---|
1448 | * \param uiScanIdx scan type (zig-zag, hor, ver) |
---|
1449 | * |
---|
1450 | * This method decodes the X and Y component within a block of the last significant coefficient. |
---|
1451 | */ |
---|
1452 | Void TDecSbac::parseLastSignificantXY( UInt& uiPosLastX, UInt& uiPosLastY, Int width, Int height, TextType eTType, UInt uiScanIdx ) |
---|
1453 | { |
---|
1454 | UInt uiLast; |
---|
1455 | ContextModel *pCtxX = m_cCuCtxLastX.get( 0, eTType ); |
---|
1456 | ContextModel *pCtxY = m_cCuCtxLastY.get( 0, eTType ); |
---|
1457 | |
---|
1458 | Int blkSizeOffsetX, blkSizeOffsetY, shiftX, shiftY; |
---|
1459 | blkSizeOffsetX = eTType ? 0: (g_aucConvertToBit[ width ] *3 + ((g_aucConvertToBit[ width ] +1)>>2)); |
---|
1460 | blkSizeOffsetY = eTType ? 0: (g_aucConvertToBit[ height ]*3 + ((g_aucConvertToBit[ height ]+1)>>2)); |
---|
1461 | shiftX= eTType ? g_aucConvertToBit[ width ] :((g_aucConvertToBit[ width ]+3)>>2); |
---|
1462 | shiftY= eTType ? g_aucConvertToBit[ height ] :((g_aucConvertToBit[ height ]+3)>>2); |
---|
1463 | // posX |
---|
1464 | for( uiPosLastX = 0; uiPosLastX < g_uiGroupIdx[ width - 1 ]; uiPosLastX++ ) |
---|
1465 | { |
---|
1466 | m_pcTDecBinIf->decodeBin( uiLast, *( pCtxX + blkSizeOffsetX + (uiPosLastX >>shiftX) ) ); |
---|
1467 | if( !uiLast ) |
---|
1468 | { |
---|
1469 | break; |
---|
1470 | } |
---|
1471 | } |
---|
1472 | |
---|
1473 | // posY |
---|
1474 | for( uiPosLastY = 0; uiPosLastY < g_uiGroupIdx[ height - 1 ]; uiPosLastY++ ) |
---|
1475 | { |
---|
1476 | m_pcTDecBinIf->decodeBin( uiLast, *( pCtxY + blkSizeOffsetY + (uiPosLastY >>shiftY)) ); |
---|
1477 | if( !uiLast ) |
---|
1478 | { |
---|
1479 | break; |
---|
1480 | } |
---|
1481 | } |
---|
1482 | if ( uiPosLastX > 3 ) |
---|
1483 | { |
---|
1484 | UInt uiTemp = 0; |
---|
1485 | UInt uiCount = ( uiPosLastX - 2 ) >> 1; |
---|
1486 | for ( Int i = uiCount - 1; i >= 0; i-- ) |
---|
1487 | { |
---|
1488 | m_pcTDecBinIf->decodeBinEP( uiLast ); |
---|
1489 | uiTemp += uiLast << i; |
---|
1490 | } |
---|
1491 | uiPosLastX = g_uiMinInGroup[ uiPosLastX ] + uiTemp; |
---|
1492 | } |
---|
1493 | if ( uiPosLastY > 3 ) |
---|
1494 | { |
---|
1495 | UInt uiTemp = 0; |
---|
1496 | UInt uiCount = ( uiPosLastY - 2 ) >> 1; |
---|
1497 | for ( Int i = uiCount - 1; i >= 0; i-- ) |
---|
1498 | { |
---|
1499 | m_pcTDecBinIf->decodeBinEP( uiLast ); |
---|
1500 | uiTemp += uiLast << i; |
---|
1501 | } |
---|
1502 | uiPosLastY = g_uiMinInGroup[ uiPosLastY ] + uiTemp; |
---|
1503 | } |
---|
1504 | |
---|
1505 | if( uiScanIdx == SCAN_VER ) |
---|
1506 | { |
---|
1507 | swap( uiPosLastX, uiPosLastY ); |
---|
1508 | } |
---|
1509 | } |
---|
1510 | |
---|
1511 | Void TDecSbac::parseCoeffNxN( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType ) |
---|
1512 | { |
---|
1513 | #if !H_MV_ENC_DEC_TRAC |
---|
1514 | DTRACE_CABAC_VL( g_nSymbolCounter++ ) |
---|
1515 | DTRACE_CABAC_T( "\tparseCoeffNxN()\teType=" ) |
---|
1516 | DTRACE_CABAC_V( eTType ) |
---|
1517 | DTRACE_CABAC_T( "\twidth=" ) |
---|
1518 | DTRACE_CABAC_V( uiWidth ) |
---|
1519 | DTRACE_CABAC_T( "\theight=" ) |
---|
1520 | DTRACE_CABAC_V( uiHeight ) |
---|
1521 | DTRACE_CABAC_T( "\tdepth=" ) |
---|
1522 | DTRACE_CABAC_V( uiDepth ) |
---|
1523 | DTRACE_CABAC_T( "\tabspartidx=" ) |
---|
1524 | DTRACE_CABAC_V( uiAbsPartIdx ) |
---|
1525 | DTRACE_CABAC_T( "\ttoCU-X=" ) |
---|
1526 | DTRACE_CABAC_V( pcCU->getCUPelX() ) |
---|
1527 | DTRACE_CABAC_T( "\ttoCU-Y=" ) |
---|
1528 | DTRACE_CABAC_V( pcCU->getCUPelY() ) |
---|
1529 | DTRACE_CABAC_T( "\tCU-addr=" ) |
---|
1530 | DTRACE_CABAC_V( pcCU->getAddr() ) |
---|
1531 | DTRACE_CABAC_T( "\tinCU-X=" ) |
---|
1532 | DTRACE_CABAC_V( g_auiRasterToPelX[ g_auiZscanToRaster[uiAbsPartIdx] ] ) |
---|
1533 | DTRACE_CABAC_T( "\tinCU-Y=" ) |
---|
1534 | DTRACE_CABAC_V( g_auiRasterToPelY[ g_auiZscanToRaster[uiAbsPartIdx] ] ) |
---|
1535 | DTRACE_CABAC_T( "\tpredmode=" ) |
---|
1536 | DTRACE_CABAC_V( pcCU->getPredictionMode( uiAbsPartIdx ) ) |
---|
1537 | DTRACE_CABAC_T( "\n" ) |
---|
1538 | #endif |
---|
1539 | |
---|
1540 | if( uiWidth > pcCU->getSlice()->getSPS()->getMaxTrSize() ) |
---|
1541 | { |
---|
1542 | uiWidth = pcCU->getSlice()->getSPS()->getMaxTrSize(); |
---|
1543 | uiHeight = pcCU->getSlice()->getSPS()->getMaxTrSize(); |
---|
1544 | } |
---|
1545 | if(pcCU->getSlice()->getPPS()->getUseTransformSkip()) |
---|
1546 | { |
---|
1547 | parseTransformSkipFlags( pcCU, uiAbsPartIdx, uiWidth, uiHeight, uiDepth, eTType); |
---|
1548 | } |
---|
1549 | |
---|
1550 | eTType = eTType == TEXT_LUMA ? TEXT_LUMA : ( eTType == TEXT_NONE ? TEXT_NONE : TEXT_CHROMA ); |
---|
1551 | |
---|
1552 | //----- parse significance map ----- |
---|
1553 | const UInt uiLog2BlockSize = g_aucConvertToBit[ uiWidth ] + 2; |
---|
1554 | const UInt uiMaxNumCoeff = uiWidth * uiHeight; |
---|
1555 | const UInt uiMaxNumCoeffM1 = uiMaxNumCoeff - 1; |
---|
1556 | UInt uiScanIdx = pcCU->getCoefScanIdx(uiAbsPartIdx, uiWidth, eTType==TEXT_LUMA, pcCU->isIntra(uiAbsPartIdx)); |
---|
1557 | |
---|
1558 | //===== decode last significant ===== |
---|
1559 | UInt uiPosLastX, uiPosLastY; |
---|
1560 | parseLastSignificantXY( uiPosLastX, uiPosLastY, uiWidth, uiHeight, eTType, uiScanIdx ); |
---|
1561 | UInt uiBlkPosLast = uiPosLastX + (uiPosLastY<<uiLog2BlockSize); |
---|
1562 | pcCoef[ uiBlkPosLast ] = 1; |
---|
1563 | |
---|
1564 | //===== decode significance flags ===== |
---|
1565 | UInt uiScanPosLast; |
---|
1566 | const UInt *scan = g_auiSigLastScan[ uiScanIdx ][ uiLog2BlockSize-1 ]; |
---|
1567 | for( uiScanPosLast = 0; uiScanPosLast < uiMaxNumCoeffM1; uiScanPosLast++ ) |
---|
1568 | { |
---|
1569 | UInt uiBlkPos = scan[ uiScanPosLast ]; |
---|
1570 | if( uiBlkPosLast == uiBlkPos ) |
---|
1571 | { |
---|
1572 | break; |
---|
1573 | } |
---|
1574 | } |
---|
1575 | |
---|
1576 | ContextModel * const baseCoeffGroupCtx = m_cCUSigCoeffGroupSCModel.get( 0, eTType ); |
---|
1577 | ContextModel * const baseCtx = (eTType==TEXT_LUMA) ? m_cCUSigSCModel.get( 0, 0 ) : m_cCUSigSCModel.get( 0, 0 ) + NUM_SIG_FLAG_CTX_LUMA; |
---|
1578 | |
---|
1579 | const Int iLastScanSet = uiScanPosLast >> LOG2_SCAN_SET_SIZE; |
---|
1580 | UInt c1 = 1; |
---|
1581 | UInt uiGoRiceParam = 0; |
---|
1582 | |
---|
1583 | Bool beValid; |
---|
1584 | if (pcCU->getCUTransquantBypass(uiAbsPartIdx)) |
---|
1585 | { |
---|
1586 | beValid = false; |
---|
1587 | } |
---|
1588 | else |
---|
1589 | { |
---|
1590 | beValid = pcCU->getSlice()->getPPS()->getSignHideFlag() > 0; |
---|
1591 | } |
---|
1592 | UInt absSum = 0; |
---|
1593 | |
---|
1594 | UInt uiSigCoeffGroupFlag[ MLS_GRP_NUM ]; |
---|
1595 | ::memset( uiSigCoeffGroupFlag, 0, sizeof(UInt) * MLS_GRP_NUM ); |
---|
1596 | const UInt uiNumBlkSide = uiWidth >> (MLS_CG_SIZE >> 1); |
---|
1597 | const UInt * scanCG; |
---|
1598 | { |
---|
1599 | scanCG = g_auiSigLastScan[ uiScanIdx ][ uiLog2BlockSize > 3 ? uiLog2BlockSize-2-1 : 0 ]; |
---|
1600 | if( uiLog2BlockSize == 3 ) |
---|
1601 | { |
---|
1602 | scanCG = g_sigLastScan8x8[ uiScanIdx ]; |
---|
1603 | } |
---|
1604 | else if( uiLog2BlockSize == 5 ) |
---|
1605 | { |
---|
1606 | scanCG = g_sigLastScanCG32x32; |
---|
1607 | } |
---|
1608 | } |
---|
1609 | Int iScanPosSig = (Int) uiScanPosLast; |
---|
1610 | for( Int iSubSet = iLastScanSet; iSubSet >= 0; iSubSet-- ) |
---|
1611 | { |
---|
1612 | Int iSubPos = iSubSet << LOG2_SCAN_SET_SIZE; |
---|
1613 | uiGoRiceParam = 0; |
---|
1614 | Int numNonZero = 0; |
---|
1615 | |
---|
1616 | Int lastNZPosInCG = -1, firstNZPosInCG = SCAN_SET_SIZE; |
---|
1617 | |
---|
1618 | Int pos[SCAN_SET_SIZE]; |
---|
1619 | if( iScanPosSig == (Int) uiScanPosLast ) |
---|
1620 | { |
---|
1621 | lastNZPosInCG = iScanPosSig; |
---|
1622 | firstNZPosInCG = iScanPosSig; |
---|
1623 | iScanPosSig--; |
---|
1624 | pos[ numNonZero ] = uiBlkPosLast; |
---|
1625 | numNonZero = 1; |
---|
1626 | } |
---|
1627 | |
---|
1628 | // decode significant_coeffgroup_flag |
---|
1629 | Int iCGBlkPos = scanCG[ iSubSet ]; |
---|
1630 | Int iCGPosY = iCGBlkPos / uiNumBlkSide; |
---|
1631 | Int iCGPosX = iCGBlkPos - (iCGPosY * uiNumBlkSide); |
---|
1632 | if( iSubSet == iLastScanSet || iSubSet == 0) |
---|
1633 | { |
---|
1634 | uiSigCoeffGroupFlag[ iCGBlkPos ] = 1; |
---|
1635 | } |
---|
1636 | else |
---|
1637 | { |
---|
1638 | UInt uiSigCoeffGroup; |
---|
1639 | UInt uiCtxSig = TComTrQuant::getSigCoeffGroupCtxInc( uiSigCoeffGroupFlag, iCGPosX, iCGPosY, uiWidth, uiHeight ); |
---|
1640 | m_pcTDecBinIf->decodeBin( uiSigCoeffGroup, baseCoeffGroupCtx[ uiCtxSig ] ); |
---|
1641 | uiSigCoeffGroupFlag[ iCGBlkPos ] = uiSigCoeffGroup; |
---|
1642 | } |
---|
1643 | |
---|
1644 | // decode significant_coeff_flag |
---|
1645 | Int patternSigCtx = TComTrQuant::calcPatternSigCtx( uiSigCoeffGroupFlag, iCGPosX, iCGPosY, uiWidth, uiHeight ); |
---|
1646 | UInt uiBlkPos, uiPosY, uiPosX, uiSig, uiCtxSig; |
---|
1647 | for( ; iScanPosSig >= iSubPos; iScanPosSig-- ) |
---|
1648 | { |
---|
1649 | uiBlkPos = scan[ iScanPosSig ]; |
---|
1650 | uiPosY = uiBlkPos >> uiLog2BlockSize; |
---|
1651 | uiPosX = uiBlkPos - ( uiPosY << uiLog2BlockSize ); |
---|
1652 | uiSig = 0; |
---|
1653 | |
---|
1654 | if( uiSigCoeffGroupFlag[ iCGBlkPos ] ) |
---|
1655 | { |
---|
1656 | if( iScanPosSig > iSubPos || iSubSet == 0 || numNonZero ) |
---|
1657 | { |
---|
1658 | uiCtxSig = TComTrQuant::getSigCtxInc( patternSigCtx, uiScanIdx, uiPosX, uiPosY, uiLog2BlockSize, eTType ); |
---|
1659 | m_pcTDecBinIf->decodeBin( uiSig, baseCtx[ uiCtxSig ] ); |
---|
1660 | } |
---|
1661 | else |
---|
1662 | { |
---|
1663 | uiSig = 1; |
---|
1664 | } |
---|
1665 | } |
---|
1666 | pcCoef[ uiBlkPos ] = uiSig; |
---|
1667 | if( uiSig ) |
---|
1668 | { |
---|
1669 | pos[ numNonZero ] = uiBlkPos; |
---|
1670 | numNonZero ++; |
---|
1671 | if( lastNZPosInCG == -1 ) |
---|
1672 | { |
---|
1673 | lastNZPosInCG = iScanPosSig; |
---|
1674 | } |
---|
1675 | firstNZPosInCG = iScanPosSig; |
---|
1676 | } |
---|
1677 | } |
---|
1678 | |
---|
1679 | if( numNonZero ) |
---|
1680 | { |
---|
1681 | Bool signHidden = ( lastNZPosInCG - firstNZPosInCG >= SBH_THRESHOLD ); |
---|
1682 | absSum = 0; |
---|
1683 | UInt uiCtxSet = (iSubSet > 0 && eTType==TEXT_LUMA) ? 2 : 0; |
---|
1684 | UInt uiBin; |
---|
1685 | if( c1 == 0 ) |
---|
1686 | { |
---|
1687 | uiCtxSet++; |
---|
1688 | } |
---|
1689 | c1 = 1; |
---|
1690 | ContextModel *baseCtxMod = ( eTType==TEXT_LUMA ) ? m_cCUOneSCModel.get( 0, 0 ) + 4 * uiCtxSet : m_cCUOneSCModel.get( 0, 0 ) + NUM_ONE_FLAG_CTX_LUMA + 4 * uiCtxSet; |
---|
1691 | Int absCoeff[SCAN_SET_SIZE]; |
---|
1692 | |
---|
1693 | for ( Int i = 0; i < numNonZero; i++) absCoeff[i] = 1; |
---|
1694 | Int numC1Flag = min(numNonZero, C1FLAG_NUMBER); |
---|
1695 | Int firstC2FlagIdx = -1; |
---|
1696 | |
---|
1697 | for( Int idx = 0; idx < numC1Flag; idx++ ) |
---|
1698 | { |
---|
1699 | m_pcTDecBinIf->decodeBin( uiBin, baseCtxMod[c1] ); |
---|
1700 | if( uiBin == 1 ) |
---|
1701 | { |
---|
1702 | c1 = 0; |
---|
1703 | if (firstC2FlagIdx == -1) |
---|
1704 | { |
---|
1705 | firstC2FlagIdx = idx; |
---|
1706 | } |
---|
1707 | } |
---|
1708 | else if( (c1 < 3) && (c1 > 0) ) |
---|
1709 | { |
---|
1710 | c1++; |
---|
1711 | } |
---|
1712 | absCoeff[ idx ] = uiBin + 1; |
---|
1713 | } |
---|
1714 | |
---|
1715 | if (c1 == 0) |
---|
1716 | { |
---|
1717 | baseCtxMod = ( eTType==TEXT_LUMA ) ? m_cCUAbsSCModel.get( 0, 0 ) + uiCtxSet : m_cCUAbsSCModel.get( 0, 0 ) + NUM_ABS_FLAG_CTX_LUMA + uiCtxSet; |
---|
1718 | if ( firstC2FlagIdx != -1) |
---|
1719 | { |
---|
1720 | m_pcTDecBinIf->decodeBin( uiBin, baseCtxMod[0] ); |
---|
1721 | absCoeff[ firstC2FlagIdx ] = uiBin + 2; |
---|
1722 | } |
---|
1723 | } |
---|
1724 | |
---|
1725 | UInt coeffSigns; |
---|
1726 | if ( signHidden && beValid ) |
---|
1727 | { |
---|
1728 | m_pcTDecBinIf->decodeBinsEP( coeffSigns, numNonZero-1 ); |
---|
1729 | coeffSigns <<= 32 - (numNonZero-1); |
---|
1730 | } |
---|
1731 | else |
---|
1732 | { |
---|
1733 | m_pcTDecBinIf->decodeBinsEP( coeffSigns, numNonZero ); |
---|
1734 | coeffSigns <<= 32 - numNonZero; |
---|
1735 | } |
---|
1736 | |
---|
1737 | Int iFirstCoeff2 = 1; |
---|
1738 | if (c1 == 0 || numNonZero > C1FLAG_NUMBER) |
---|
1739 | { |
---|
1740 | for( Int idx = 0; idx < numNonZero; idx++ ) |
---|
1741 | { |
---|
1742 | UInt baseLevel = (idx < C1FLAG_NUMBER)? (2 + iFirstCoeff2) : 1; |
---|
1743 | |
---|
1744 | if( absCoeff[ idx ] == baseLevel) |
---|
1745 | { |
---|
1746 | UInt uiLevel; |
---|
1747 | xReadCoefRemainExGolomb( uiLevel, uiGoRiceParam ); |
---|
1748 | absCoeff[ idx ] = uiLevel + baseLevel; |
---|
1749 | if(absCoeff[idx]>3*(1<<uiGoRiceParam)) |
---|
1750 | { |
---|
1751 | uiGoRiceParam = min<UInt>(uiGoRiceParam+ 1, 4); |
---|
1752 | } |
---|
1753 | } |
---|
1754 | |
---|
1755 | if(absCoeff[ idx ] >= 2) |
---|
1756 | { |
---|
1757 | iFirstCoeff2 = 0; |
---|
1758 | } |
---|
1759 | } |
---|
1760 | } |
---|
1761 | |
---|
1762 | for( Int idx = 0; idx < numNonZero; idx++ ) |
---|
1763 | { |
---|
1764 | Int blkPos = pos[ idx ]; |
---|
1765 | // Signs applied later. |
---|
1766 | pcCoef[ blkPos ] = absCoeff[ idx ]; |
---|
1767 | absSum += absCoeff[ idx ]; |
---|
1768 | |
---|
1769 | if ( idx == numNonZero-1 && signHidden && beValid ) |
---|
1770 | { |
---|
1771 | // Infer sign of 1st element. |
---|
1772 | if (absSum&0x1) |
---|
1773 | { |
---|
1774 | pcCoef[ blkPos ] = -pcCoef[ blkPos ]; |
---|
1775 | } |
---|
1776 | } |
---|
1777 | else |
---|
1778 | { |
---|
1779 | Int sign = static_cast<Int>( coeffSigns ) >> 31; |
---|
1780 | pcCoef[ blkPos ] = ( pcCoef[ blkPos ] ^ sign ) - sign; |
---|
1781 | coeffSigns <<= 1; |
---|
1782 | } |
---|
1783 | } |
---|
1784 | } |
---|
1785 | } |
---|
1786 | |
---|
1787 | return; |
---|
1788 | } |
---|
1789 | |
---|
1790 | |
---|
1791 | Void TDecSbac::parseSaoMaxUvlc ( UInt& val, UInt maxSymbol ) |
---|
1792 | { |
---|
1793 | if (maxSymbol == 0) |
---|
1794 | { |
---|
1795 | val = 0; |
---|
1796 | return; |
---|
1797 | } |
---|
1798 | |
---|
1799 | UInt code; |
---|
1800 | Int i; |
---|
1801 | m_pcTDecBinIf->decodeBinEP( code ); |
---|
1802 | if ( code == 0 ) |
---|
1803 | { |
---|
1804 | val = 0; |
---|
1805 | return; |
---|
1806 | } |
---|
1807 | |
---|
1808 | i=1; |
---|
1809 | while (1) |
---|
1810 | { |
---|
1811 | m_pcTDecBinIf->decodeBinEP( code ); |
---|
1812 | if ( code == 0 ) |
---|
1813 | { |
---|
1814 | break; |
---|
1815 | } |
---|
1816 | i++; |
---|
1817 | if (i == maxSymbol) |
---|
1818 | { |
---|
1819 | break; |
---|
1820 | } |
---|
1821 | } |
---|
1822 | |
---|
1823 | val = i; |
---|
1824 | } |
---|
1825 | Void TDecSbac::parseSaoUflc (UInt uiLength, UInt& riVal) |
---|
1826 | { |
---|
1827 | m_pcTDecBinIf->decodeBinsEP ( riVal, uiLength ); |
---|
1828 | } |
---|
1829 | Void TDecSbac::parseSaoMerge (UInt& ruiVal) |
---|
1830 | { |
---|
1831 | UInt uiCode; |
---|
1832 | m_pcTDecBinIf->decodeBin( uiCode, m_cSaoMergeSCModel.get( 0, 0, 0 ) ); |
---|
1833 | ruiVal = (Int)uiCode; |
---|
1834 | } |
---|
1835 | Void TDecSbac::parseSaoTypeIdx (UInt& ruiVal) |
---|
1836 | { |
---|
1837 | UInt uiCode; |
---|
1838 | m_pcTDecBinIf->decodeBin( uiCode, m_cSaoTypeIdxSCModel.get( 0, 0, 0 ) ); |
---|
1839 | if (uiCode == 0) |
---|
1840 | { |
---|
1841 | ruiVal = 0; |
---|
1842 | } |
---|
1843 | else |
---|
1844 | { |
---|
1845 | m_pcTDecBinIf->decodeBinEP( uiCode ); |
---|
1846 | if (uiCode == 0) |
---|
1847 | { |
---|
1848 | ruiVal = 1; |
---|
1849 | } |
---|
1850 | else |
---|
1851 | { |
---|
1852 | ruiVal = 2; |
---|
1853 | } |
---|
1854 | } |
---|
1855 | } |
---|
1856 | |
---|
1857 | Void TDecSbac::parseSaoSign(UInt& val) |
---|
1858 | { |
---|
1859 | m_pcTDecBinIf->decodeBinEP ( val ); |
---|
1860 | } |
---|
1861 | |
---|
1862 | Void TDecSbac::parseSAOBlkParam (SAOBlkParam& saoBlkParam |
---|
1863 | , Bool* sliceEnabled |
---|
1864 | , Bool leftMergeAvail |
---|
1865 | , Bool aboveMergeAvail |
---|
1866 | ) |
---|
1867 | { |
---|
1868 | UInt uiSymbol; |
---|
1869 | |
---|
1870 | Bool isLeftMerge = false; |
---|
1871 | Bool isAboveMerge= false; |
---|
1872 | |
---|
1873 | if(leftMergeAvail) |
---|
1874 | { |
---|
1875 | parseSaoMerge(uiSymbol); //sao_merge_left_flag |
---|
1876 | isLeftMerge = (uiSymbol?true:false); |
---|
1877 | } |
---|
1878 | |
---|
1879 | if( aboveMergeAvail && !isLeftMerge) |
---|
1880 | { |
---|
1881 | parseSaoMerge(uiSymbol); //sao_merge_up_flag |
---|
1882 | isAboveMerge = (uiSymbol?true:false); |
---|
1883 | } |
---|
1884 | |
---|
1885 | if(isLeftMerge || isAboveMerge) //merge mode |
---|
1886 | { |
---|
1887 | saoBlkParam[SAO_Y].modeIdc = saoBlkParam[SAO_Cb].modeIdc = saoBlkParam[SAO_Cr].modeIdc = SAO_MODE_MERGE; |
---|
1888 | saoBlkParam[SAO_Y].typeIdc = saoBlkParam[SAO_Cb].typeIdc = saoBlkParam[SAO_Cr].typeIdc = (isLeftMerge)?SAO_MERGE_LEFT:SAO_MERGE_ABOVE; |
---|
1889 | } |
---|
1890 | else //new or off mode |
---|
1891 | { |
---|
1892 | for(Int compIdx=0; compIdx < NUM_SAO_COMPONENTS; compIdx++) |
---|
1893 | { |
---|
1894 | SAOOffset& ctbParam = saoBlkParam[compIdx]; |
---|
1895 | |
---|
1896 | if(!sliceEnabled[compIdx]) |
---|
1897 | { |
---|
1898 | //off |
---|
1899 | ctbParam.modeIdc = SAO_MODE_OFF; |
---|
1900 | continue; |
---|
1901 | } |
---|
1902 | |
---|
1903 | //type |
---|
1904 | if(compIdx == SAO_Y || compIdx == SAO_Cb) |
---|
1905 | { |
---|
1906 | parseSaoTypeIdx(uiSymbol); //sao_type_idx_luma or sao_type_idx_chroma |
---|
1907 | |
---|
1908 | assert(uiSymbol ==0 || uiSymbol ==1 || uiSymbol ==2); |
---|
1909 | |
---|
1910 | if(uiSymbol ==0) //OFF |
---|
1911 | { |
---|
1912 | ctbParam.modeIdc = SAO_MODE_OFF; |
---|
1913 | } |
---|
1914 | else if(uiSymbol == 1) //BO |
---|
1915 | { |
---|
1916 | ctbParam.modeIdc = SAO_MODE_NEW; |
---|
1917 | ctbParam.typeIdc = SAO_TYPE_START_BO; |
---|
1918 | } |
---|
1919 | else //2, EO |
---|
1920 | { |
---|
1921 | ctbParam.modeIdc = SAO_MODE_NEW; |
---|
1922 | ctbParam.typeIdc = SAO_TYPE_START_EO; |
---|
1923 | } |
---|
1924 | |
---|
1925 | } |
---|
1926 | else //Cr, follow Cb SAO type |
---|
1927 | { |
---|
1928 | ctbParam.modeIdc = saoBlkParam[SAO_Cb].modeIdc; |
---|
1929 | ctbParam.typeIdc = saoBlkParam[SAO_Cb].typeIdc; |
---|
1930 | } |
---|
1931 | |
---|
1932 | if(ctbParam.modeIdc == SAO_MODE_NEW) |
---|
1933 | { |
---|
1934 | Int offset[4]; |
---|
1935 | for(Int i=0; i< 4; i++) |
---|
1936 | { |
---|
1937 | parseSaoMaxUvlc(uiSymbol, g_saoMaxOffsetQVal[compIdx] ); //sao_offset_abs |
---|
1938 | offset[i] = (Int)uiSymbol; |
---|
1939 | } |
---|
1940 | |
---|
1941 | if(ctbParam.typeIdc == SAO_TYPE_START_BO) |
---|
1942 | { |
---|
1943 | for(Int i=0; i< 4; i++) |
---|
1944 | { |
---|
1945 | if(offset[i] != 0) |
---|
1946 | { |
---|
1947 | parseSaoSign(uiSymbol); //sao_offset_sign |
---|
1948 | if(uiSymbol) |
---|
1949 | { |
---|
1950 | offset[i] = -offset[i]; |
---|
1951 | } |
---|
1952 | } |
---|
1953 | } |
---|
1954 | parseSaoUflc(NUM_SAO_BO_CLASSES_LOG2, uiSymbol ); //sao_band_position |
---|
1955 | ctbParam.typeAuxInfo = uiSymbol; |
---|
1956 | |
---|
1957 | for(Int i=0; i<4; i++) |
---|
1958 | { |
---|
1959 | ctbParam.offset[(ctbParam.typeAuxInfo+i)%MAX_NUM_SAO_CLASSES] = offset[i]; |
---|
1960 | } |
---|
1961 | |
---|
1962 | } |
---|
1963 | else //EO |
---|
1964 | { |
---|
1965 | ctbParam.typeAuxInfo = 0; |
---|
1966 | |
---|
1967 | if(compIdx == SAO_Y || compIdx == SAO_Cb) |
---|
1968 | { |
---|
1969 | parseSaoUflc(NUM_SAO_EO_TYPES_LOG2, uiSymbol ); //sao_eo_class_luma or sao_eo_class_chroma |
---|
1970 | ctbParam.typeIdc += uiSymbol; |
---|
1971 | } |
---|
1972 | else |
---|
1973 | { |
---|
1974 | ctbParam.typeIdc = saoBlkParam[SAO_Cb].typeIdc; |
---|
1975 | } |
---|
1976 | ctbParam.offset[SAO_CLASS_EO_FULL_VALLEY] = offset[0]; |
---|
1977 | ctbParam.offset[SAO_CLASS_EO_HALF_VALLEY] = offset[1]; |
---|
1978 | ctbParam.offset[SAO_CLASS_EO_PLAIN ] = 0; |
---|
1979 | ctbParam.offset[SAO_CLASS_EO_HALF_PEAK ] = -offset[2]; |
---|
1980 | ctbParam.offset[SAO_CLASS_EO_FULL_PEAK ] = -offset[3]; |
---|
1981 | } |
---|
1982 | } |
---|
1983 | } |
---|
1984 | } |
---|
1985 | } |
---|
1986 | |
---|
1987 | /** |
---|
1988 | - Initialize our contexts from the nominated source. |
---|
1989 | . |
---|
1990 | \param pSrc Contexts to be copied. |
---|
1991 | */ |
---|
1992 | Void TDecSbac::xCopyContextsFrom( TDecSbac* pSrc ) |
---|
1993 | { |
---|
1994 | memcpy(m_contextModels, pSrc->m_contextModels, m_numContextModels*sizeof(m_contextModels[0])); |
---|
1995 | } |
---|
1996 | |
---|
1997 | Void TDecSbac::xCopyFrom( TDecSbac* pSrc ) |
---|
1998 | { |
---|
1999 | m_pcTDecBinIf->copyState( pSrc->m_pcTDecBinIf ); |
---|
2000 | |
---|
2001 | m_uiLastQp = pSrc->m_uiLastQp; |
---|
2002 | xCopyContextsFrom( pSrc ); |
---|
2003 | |
---|
2004 | } |
---|
2005 | |
---|
2006 | Void TDecSbac::load ( TDecSbac* pScr ) |
---|
2007 | { |
---|
2008 | xCopyFrom(pScr); |
---|
2009 | } |
---|
2010 | |
---|
2011 | Void TDecSbac::loadContexts ( TDecSbac* pScr ) |
---|
2012 | { |
---|
2013 | xCopyContextsFrom(pScr); |
---|
2014 | } |
---|
2015 | |
---|
2016 | #if H_3D_ARP |
---|
2017 | Void TDecSbac::parseARPW( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
2018 | { |
---|
2019 | UInt uiMaxW = pcCU->getSlice()->getARPStepNum() - 1; |
---|
2020 | UInt uiW = 0; |
---|
2021 | UInt uiOffset = pcCU->getCTXARPWFlag(uiAbsPartIdx); |
---|
2022 | UInt uiCode = 0; |
---|
2023 | |
---|
2024 | assert ( uiMaxW > 0 ); |
---|
2025 | |
---|
2026 | m_pcTDecBinIf->decodeBin( uiCode , m_cCUPUARPWSCModel.get( 0, 0, 0 + uiOffset ) ); |
---|
2027 | |
---|
2028 | uiW = uiCode; |
---|
2029 | if( 1 == uiW ) |
---|
2030 | { |
---|
2031 | m_pcTDecBinIf->decodeBin( uiCode , m_cCUPUARPWSCModel.get( 0, 0, 2 ) ); |
---|
2032 | uiW += ( 1 == uiCode ? 1 : 0 ); |
---|
2033 | } |
---|
2034 | #if H_MV_ENC_DEC_TRAC |
---|
2035 | DTRACE_CU("iv_res_pred_weight_idx", uiW ) |
---|
2036 | #endif |
---|
2037 | pcCU->setARPWSubParts( ( UChar )( uiW ) , uiAbsPartIdx, uiDepth ); |
---|
2038 | } |
---|
2039 | #endif |
---|
2040 | |
---|
2041 | #if H_3D_IC |
---|
2042 | /** parse illumination compensation flag |
---|
2043 | * \param pcCU |
---|
2044 | * \param uiAbsPartIdx |
---|
2045 | * \param uiDepth |
---|
2046 | * \returns Void |
---|
2047 | */ |
---|
2048 | Void TDecSbac::parseICFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
2049 | { |
---|
2050 | UInt uiSymbol = 0; |
---|
2051 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cCUICFlagSCModel.get( 0, 0, 0 ) ); |
---|
2052 | #if !H_MV_ENC_DEC_TRAC |
---|
2053 | DTRACE_CABAC_VL( g_nSymbolCounter++ ); |
---|
2054 | DTRACE_CABAC_T( "\tICFlag" ); |
---|
2055 | DTRACE_CABAC_T( "\tuiCtxIC: "); |
---|
2056 | DTRACE_CABAC_V( uiCtxIC ); |
---|
2057 | DTRACE_CABAC_T( "\tuiSymbol: "); |
---|
2058 | DTRACE_CABAC_V( uiSymbol ); |
---|
2059 | DTRACE_CABAC_T( "\n"); |
---|
2060 | #else |
---|
2061 | DTRACE_CU("ic_flag", uiSymbol) |
---|
2062 | #endif |
---|
2063 | |
---|
2064 | pcCU->setICFlagSubParts( uiSymbol ? true : false , uiAbsPartIdx, 0, uiDepth ); |
---|
2065 | } |
---|
2066 | #endif |
---|
2067 | |
---|
2068 | #if H_3D_INTER_SDC |
---|
2069 | Void TDecSbac::parseDeltaDC( TComDataCU* pcCU, UInt absPartIdx, UInt depth ) |
---|
2070 | { |
---|
2071 | if( ! ( pcCU->getSDCFlag( absPartIdx ) || ( pcCU->isIntra( absPartIdx ) && getDimType( pcCU->getLumaIntraDir( absPartIdx ) ) < DIM_NUM_TYPE ) ) ) |
---|
2072 | { |
---|
2073 | assert( 0 ); |
---|
2074 | } |
---|
2075 | |
---|
2076 | UInt symbol = 1; |
---|
2077 | UInt uiNumSegments = isDimMode( pcCU->getLumaIntraDir( absPartIdx ) ) ? 2 : 1; |
---|
2078 | |
---|
2079 | if( pcCU->isIntra( absPartIdx ) && pcCU->getSDCFlag( absPartIdx )) |
---|
2080 | { |
---|
2081 | |
---|
2082 | m_pcTDecBinIf->decodeBin( symbol, m_cDdcFlagSCModel.get( 0, 0, 0 ) ); |
---|
2083 | assert( pcCU->getPartitionSize( absPartIdx ) == SIZE_2Nx2N ); |
---|
2084 | pcCU->setTrIdxSubParts( 0, absPartIdx, depth ); |
---|
2085 | pcCU->setCbfSubParts( 1, 1, 1, absPartIdx, depth ); |
---|
2086 | } |
---|
2087 | |
---|
2088 | for( UInt segment = 0; segment < uiNumSegments; segment++ ) |
---|
2089 | { |
---|
2090 | Pel valDeltaDC = 0; |
---|
2091 | if( symbol ) |
---|
2092 | { |
---|
2093 | xParseDimDeltaDC( valDeltaDC, uiNumSegments ); |
---|
2094 | } |
---|
2095 | |
---|
2096 | if( pcCU->isIntra( absPartIdx ) ) |
---|
2097 | { |
---|
2098 | UInt dir = pcCU->getLumaIntraDir( absPartIdx ); |
---|
2099 | |
---|
2100 | if( pcCU->getSDCFlag( absPartIdx ) ) |
---|
2101 | { |
---|
2102 | pcCU->setSDCSegmentDCOffset( valDeltaDC, segment, absPartIdx ); |
---|
2103 | } |
---|
2104 | else |
---|
2105 | { |
---|
2106 | pcCU->setDimDeltaDC( getDimType( dir ), segment, absPartIdx, valDeltaDC ); |
---|
2107 | } |
---|
2108 | } |
---|
2109 | else |
---|
2110 | { |
---|
2111 | pcCU->setSDCSegmentDCOffset( valDeltaDC, segment, absPartIdx ); |
---|
2112 | } |
---|
2113 | } |
---|
2114 | } |
---|
2115 | |
---|
2116 | Void TDecSbac::parseSDCFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
2117 | { |
---|
2118 | UInt uiSymbol = 0; |
---|
2119 | UInt uiCtxSDCFlag = pcCU->getCtxSDCFlag( uiAbsPartIdx ); |
---|
2120 | |
---|
2121 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cSDCFlagSCModel.get( 0, 0, uiCtxSDCFlag ) ); |
---|
2122 | DTRACE_CU("dc_only_flag", uiSymbol) |
---|
2123 | if( uiSymbol ) |
---|
2124 | { |
---|
2125 | pcCU->setSDCFlagSubParts( true, uiAbsPartIdx, uiDepth ); |
---|
2126 | pcCU->setTrIdxSubParts( 0, uiAbsPartIdx, uiDepth ); |
---|
2127 | pcCU->setCbfSubParts( 1, 1, 1, uiAbsPartIdx, uiDepth ); |
---|
2128 | } |
---|
2129 | else |
---|
2130 | { |
---|
2131 | pcCU->setSDCFlagSubParts( false, uiAbsPartIdx, uiDepth ); |
---|
2132 | } |
---|
2133 | } |
---|
2134 | |
---|
2135 | #endif |
---|
2136 | |
---|
2137 | #if H_3D_DBBP |
---|
2138 | Void TDecSbac::parseDBBPFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) |
---|
2139 | { |
---|
2140 | AOF( pcCU->getSlice()->getDepthBasedBlkPartFlag() ); |
---|
2141 | AOF( !pcCU->getSlice()->getIsDepth() ); |
---|
2142 | |
---|
2143 | UInt uiSymbol = 0; |
---|
2144 | |
---|
2145 | m_pcTDecBinIf->decodeBin( uiSymbol, m_cDBBPFlagSCModel.get( 0, 0, 0 ) ); |
---|
2146 | DTRACE_CU("dbbp_flag", uiSymbol) |
---|
2147 | PartSize ePartSize = pcCU->getPartitionSize( uiAbsPartIdx ); |
---|
2148 | AOF( ePartSize == SIZE_2NxN || ePartSize == SIZE_Nx2N ); |
---|
2149 | UInt uiPUOffset = ( g_auiPUOffset[UInt( ePartSize )] << ( ( pcCU->getSlice()->getSPS()->getMaxCUDepth() - uiDepth ) << 1 ) ) >> 4; |
---|
2150 | pcCU->setDBBPFlagSubParts(uiSymbol, uiAbsPartIdx, 0, uiDepth); |
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2151 | pcCU->setDBBPFlagSubParts(uiSymbol, uiAbsPartIdx+uiPUOffset, 1, uiDepth); |
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2152 | } |
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2153 | #endif |
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2154 | |
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2155 | |
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2156 | |
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2157 | //! \} |
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