1 | /* The copyright in this software is being made available under the BSD |
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2 | * License, included below. This software may be subject to other third party |
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3 | * and contributor rights, including patent rights, and no such rights are |
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4 | * granted under this license. |
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5 | * |
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6 | * Copyright (c) 2010-2013, ITU/ISO/IEC |
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7 | * All rights reserved. |
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8 | * |
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9 | * Redistribution and use in source and binary forms, with or without |
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10 | * modification, are permitted provided that the following conditions are met: |
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11 | * |
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12 | * * Redistributions of source code must retain the above copyright notice, |
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13 | * this list of conditions and the following disclaimer. |
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14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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15 | * this list of conditions and the following disclaimer in the documentation |
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16 | * and/or other materials provided with the distribution. |
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17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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18 | * be used to endorse or promote products derived from this software without |
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19 | * specific prior written permission. |
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20 | * |
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21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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32 | */ |
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33 | |
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34 | /** \file TDecSbac.h |
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35 | \brief SBAC decoder class (header) |
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36 | */ |
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37 | |
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38 | #ifndef __TDECSBAC__ |
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39 | #define __TDECSBAC__ |
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40 | |
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41 | |
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42 | #if _MSC_VER > 1000 |
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43 | #pragma once |
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44 | #endif // _MSC_VER > 1000 |
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45 | |
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46 | |
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47 | #include "TDecEntropy.h" |
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48 | #include "TDecBinCoder.h" |
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49 | #include "TLibCommon/ContextTables.h" |
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50 | #include "TLibCommon/ContextModel.h" |
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51 | #include "TLibCommon/ContextModel3DBuffer.h" |
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52 | |
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53 | //! \ingroup TLibDecoder |
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54 | //! \{ |
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55 | |
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56 | // ==================================================================================================================== |
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57 | // Class definition |
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58 | // ==================================================================================================================== |
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59 | |
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60 | /// SBAC decoder class |
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61 | class TDecSbac : public TDecEntropyIf |
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62 | { |
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63 | public: |
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64 | TDecSbac(); |
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65 | virtual ~TDecSbac(); |
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66 | |
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67 | Void init ( TDecBinIf* p ) { m_pcTDecBinIf = p; } |
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68 | Void uninit ( ) { m_pcTDecBinIf = 0; } |
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69 | |
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70 | Void load ( TDecSbac* pScr ); |
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71 | Void loadContexts ( TDecSbac* pScr ); |
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72 | Void xCopyFrom ( TDecSbac* pSrc ); |
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73 | Void xCopyContextsFrom ( TDecSbac* pSrc ); |
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74 | |
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75 | Void resetEntropy (TComSlice* pSlice ); |
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76 | Void setBitstream ( TComInputBitstream* p ) { m_pcBitstream = p; m_pcTDecBinIf->init( p ); } |
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77 | Void parseVPS ( TComVPS* /*pcVPS*/ ) {} |
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78 | #if SPS_SUB_LAYER_INFO |
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79 | Void parseSPS ( TComSPS* /*pcSPS*/, ParameterSetManagerDecoder * /*parameterSetManager*/ ) {} |
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80 | #else |
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81 | Void parseSPS ( TComSPS* /*pcSPS*/ ) {} |
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82 | #endif |
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83 | Void parsePPS ( TComPPS* /*pcPPS*/ ) {} |
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84 | |
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85 | Void parseSliceHeader ( TComSlice*& /*rpcSlice*/, ParameterSetManagerDecoder* /*parameterSetManager*/) {} |
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86 | Void parseTerminatingBit ( UInt& ruiBit ); |
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87 | Void parseMVPIdx ( Int& riMVPIdx ); |
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88 | Void parseSaoMaxUvlc ( UInt& val, UInt maxSymbol ); |
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89 | Void parseSaoMerge ( UInt& ruiVal ); |
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90 | Void parseSaoTypeIdx ( UInt& ruiVal ); |
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91 | Void parseSaoUflc ( UInt uiLength, UInt& ruiVal ); |
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92 | Void parseSaoOneLcuInterleaving(Int rx, Int ry, SAOParam* pSaoParam, TComDataCU* pcCU, Int iCUAddrInSlice, Int iCUAddrUpInSlice, Int allowMergeLeft, Int allowMergeUp); |
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93 | Void parseSaoOffset (SaoLcuParam* psSaoLcuParam, UInt compIdx); |
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94 | private: |
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95 | Void xReadUnarySymbol ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset ); |
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96 | Void xReadUnaryMaxSymbol ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol ); |
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97 | Void xReadEpExGolomb ( UInt& ruiSymbol, UInt uiCount ); |
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98 | Void xReadCoefRemainExGolomb ( UInt &rSymbol, UInt &rParam ); |
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99 | private: |
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100 | TComInputBitstream* m_pcBitstream; |
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101 | TDecBinIf* m_pcTDecBinIf; |
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102 | |
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103 | public: |
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104 | |
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105 | Void parseSkipFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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106 | Void parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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107 | Void parseSplitFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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108 | Void parseMergeFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx ); |
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109 | Void parseMergeIndex ( TComDataCU* pcCU, UInt& ruiMergeIndex ); |
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110 | Void parsePartSize ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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111 | Void parsePredMode ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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112 | |
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113 | Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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114 | |
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115 | Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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116 | |
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117 | Void parseInterDir ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx ); |
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118 | Void parseRefFrmIdx ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList ); |
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119 | Void parseMvd ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList ); |
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120 | |
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121 | Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize ); |
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122 | Void parseQtCbf ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth ); |
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123 | Void parseQtRootCbf ( UInt uiAbsPartIdx, UInt& uiQtRootCbf ); |
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124 | |
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125 | Void parseDeltaQP ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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126 | |
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127 | Void parseIPCMInfo ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth); |
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128 | |
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129 | Void parseLastSignificantXY( UInt& uiPosLastX, UInt& uiPosLastY, Int width, Int height, TextType eTType, UInt uiScanIdx ); |
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130 | Void parseCoeffNxN ( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType ); |
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131 | Void parseTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType); |
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132 | |
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133 | Void updateContextTables( SliceType eSliceType, Int iQp ); |
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134 | |
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135 | Void parseScalingList ( TComScalingList* /*scalingList*/ ) {} |
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136 | |
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137 | private: |
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138 | UInt m_uiLastDQpNonZero; |
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139 | UInt m_uiLastQp; |
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140 | |
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141 | ContextModel m_contextModels[MAX_NUM_CTX_MOD]; |
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142 | Int m_numContextModels; |
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143 | ContextModel3DBuffer m_cCUSplitFlagSCModel; |
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144 | ContextModel3DBuffer m_cCUSkipFlagSCModel; |
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145 | ContextModel3DBuffer m_cCUMergeFlagExtSCModel; |
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146 | ContextModel3DBuffer m_cCUMergeIdxExtSCModel; |
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147 | ContextModel3DBuffer m_cCUPartSizeSCModel; |
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148 | ContextModel3DBuffer m_cCUPredModeSCModel; |
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149 | ContextModel3DBuffer m_cCUIntraPredSCModel; |
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150 | ContextModel3DBuffer m_cCUChromaPredSCModel; |
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151 | ContextModel3DBuffer m_cCUDeltaQpSCModel; |
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152 | ContextModel3DBuffer m_cCUInterDirSCModel; |
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153 | ContextModel3DBuffer m_cCURefPicSCModel; |
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154 | ContextModel3DBuffer m_cCUMvdSCModel; |
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155 | ContextModel3DBuffer m_cCUQtCbfSCModel; |
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156 | ContextModel3DBuffer m_cCUTransSubdivFlagSCModel; |
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157 | ContextModel3DBuffer m_cCUQtRootCbfSCModel; |
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158 | |
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159 | ContextModel3DBuffer m_cCUSigCoeffGroupSCModel; |
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160 | ContextModel3DBuffer m_cCUSigSCModel; |
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161 | ContextModel3DBuffer m_cCuCtxLastX; |
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162 | ContextModel3DBuffer m_cCuCtxLastY; |
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163 | ContextModel3DBuffer m_cCUOneSCModel; |
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164 | ContextModel3DBuffer m_cCUAbsSCModel; |
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165 | |
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166 | ContextModel3DBuffer m_cMVPIdxSCModel; |
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167 | |
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168 | ContextModel3DBuffer m_cCUAMPSCModel; |
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169 | ContextModel3DBuffer m_cSaoMergeSCModel; |
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170 | ContextModel3DBuffer m_cSaoTypeIdxSCModel; |
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171 | ContextModel3DBuffer m_cTransformSkipSCModel; |
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172 | ContextModel3DBuffer m_CUTransquantBypassFlagSCModel; |
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173 | }; |
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174 | |
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175 | //! \} |
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176 | |
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177 | #endif // !defined(AFX_TDECSBAC_H__CFCAAA19_8110_47F4_9A16_810C4B5499D5__INCLUDED_) |
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