[324] | 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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[446] | 78 | #if H_3D |
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| 79 | Void parseSPS ( TComSPS* /*pcSPS*/ , Int /*viewIndex*/, Bool /*depthFlag*/ ) {} |
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| 80 | #else |
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[324] | 81 | Void parseSPS ( TComSPS* /*pcSPS*/ ) {} |
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[446] | 82 | #endif |
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[324] | 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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