[191] | 1 | /* The copyright in this software is being made available under the BSD |
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| 2 | * License, included below. This software may be subject to other third party |
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| 3 | * and contributor rights, including patent rights, and no such rights are |
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| 4 | * granted under this license. |
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| 5 | * |
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| 6 | * Copyright (c) 2010-2013, ITU/ISO/IEC |
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| 7 | * All rights reserved. |
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| 8 | * |
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| 9 | * Redistribution and use in source and binary forms, with or without |
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| 10 | * modification, are permitted provided that the following conditions are met: |
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| 11 | * |
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| 12 | * * Redistributions of source code must retain the above copyright notice, |
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| 13 | * this list of conditions and the following disclaimer. |
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| 14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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| 15 | * this list of conditions and the following disclaimer in the documentation |
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| 16 | * and/or other materials provided with the distribution. |
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| 17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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| 18 | * be used to endorse or promote products derived from this software without |
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| 19 | * specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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| 25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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| 31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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| 32 | */ |
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| 33 | |
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| 34 | /** \file TDecEntropy.h |
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| 35 | \brief entropy decoder class (header) |
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| 36 | */ |
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| 37 | |
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| 38 | #ifndef __TDECENTROPY__ |
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| 39 | #define __TDECENTROPY__ |
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| 40 | |
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| 41 | #include "TLibCommon/CommonDef.h" |
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| 42 | #include "TLibCommon/TComBitStream.h" |
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| 43 | #include "TLibCommon/TComSlice.h" |
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| 44 | #include "TLibCommon/TComPic.h" |
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| 45 | #include "TLibCommon/TComPrediction.h" |
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| 46 | #include "TLibCommon/TComSampleAdaptiveOffset.h" |
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| 47 | |
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| 48 | class TDecSbac; |
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| 49 | class TDecCavlc; |
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| 50 | class ParameterSetManagerDecoder; |
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| 51 | |
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| 52 | //! \ingroup TLibDecoder |
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| 53 | //! \{ |
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| 54 | |
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| 55 | // ==================================================================================================================== |
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| 56 | // Class definition |
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| 57 | // ==================================================================================================================== |
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| 58 | |
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| 59 | /// entropy decoder pure class |
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| 60 | class TDecEntropyIf |
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| 61 | { |
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| 62 | public: |
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| 63 | // Virtual list for SBAC/CAVLC |
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| 64 | virtual Void resetEntropy ( TComSlice* pcSlice ) = 0; |
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| 65 | virtual Void setBitstream ( TComInputBitstream* p ) = 0; |
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| 66 | |
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| 67 | virtual Void parseVPS ( TComVPS* pcVPS ) = 0; |
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| 68 | virtual Void parseSPS ( TComSPS* pcSPS ) = 0; |
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| 69 | virtual Void parsePPS ( TComPPS* pcPPS ) = 0; |
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| 70 | |
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| 71 | virtual Void parseSliceHeader ( TComSlice*& rpcSlice, ParameterSetManagerDecoder *parameterSetManager) = 0; |
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| 72 | |
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| 73 | virtual Void parseTerminatingBit ( UInt& ruilsLast ) = 0; |
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| 74 | |
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| 75 | virtual Void parseMVPIdx ( Int& riMVPIdx ) = 0; |
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| 76 | |
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| 77 | public: |
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| 78 | virtual Void parseSkipFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0; |
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| 79 | virtual Void parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0; |
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| 80 | virtual Void parseSplitFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0; |
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| 81 | virtual Void parseMergeFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx ) = 0; |
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| 82 | virtual Void parseMergeIndex ( TComDataCU* pcCU, UInt& ruiMergeIndex ) = 0; |
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| 83 | virtual Void parsePartSize ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0; |
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| 84 | virtual Void parsePredMode ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0; |
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| 85 | |
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| 86 | virtual Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0; |
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| 87 | |
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| 88 | virtual Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0; |
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| 89 | |
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| 90 | virtual Void parseInterDir ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx ) = 0; |
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| 91 | virtual Void parseRefFrmIdx ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList ) = 0; |
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| 92 | virtual Void parseMvd ( TComDataCU* pcCU, UInt uiAbsPartAddr, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList ) = 0; |
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| 93 | |
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| 94 | virtual Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize ) = 0; |
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| 95 | virtual Void parseQtCbf ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth ) = 0; |
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| 96 | virtual Void parseQtRootCbf ( UInt uiAbsPartIdx, UInt& uiQtRootCbf ) = 0; |
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| 97 | |
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| 98 | virtual Void parseDeltaQP ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0; |
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| 99 | |
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| 100 | virtual Void parseIPCMInfo ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth) = 0; |
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| 101 | |
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| 102 | virtual Void parseCoeffNxN( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType ) = 0; |
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| 103 | virtual Void parseTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType) = 0; |
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| 104 | |
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| 105 | #if INTRA_BL |
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| 106 | virtual Void parseIntraBLFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth ) = 0; |
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| 107 | #endif |
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| 108 | |
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| 109 | virtual Void updateContextTables( SliceType eSliceType, Int iQp ) = 0; |
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| 110 | |
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| 111 | virtual ~TDecEntropyIf() {} |
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| 112 | }; |
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| 113 | |
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| 114 | /// entropy decoder class |
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| 115 | class TDecEntropy |
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| 116 | { |
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| 117 | private: |
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| 118 | TDecEntropyIf* m_pcEntropyDecoderIf; |
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| 119 | TComPrediction* m_pcPrediction; |
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| 120 | UInt m_uiBakAbsPartIdx; |
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| 121 | UInt m_uiBakChromaOffset; |
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| 122 | UInt m_bakAbsPartIdxCU; |
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| 123 | |
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| 124 | public: |
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| 125 | Void init (TComPrediction* p) {m_pcPrediction = p;} |
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| 126 | Void decodePUWise ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU ); |
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| 127 | Void decodeInterDirPU ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx ); |
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| 128 | Void decodeRefFrmIdxPU ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList ); |
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| 129 | Void decodeMvdPU ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList ); |
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| 130 | Void decodeMVPIdxPU ( TComDataCU* pcSubCU, UInt uiPartAddr, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList ); |
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| 131 | |
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| 132 | Void setEntropyDecoder ( TDecEntropyIf* p ); |
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| 133 | Void setBitstream ( TComInputBitstream* p ) { m_pcEntropyDecoderIf->setBitstream(p); } |
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| 134 | Void resetEntropy ( TComSlice* p) { m_pcEntropyDecoderIf->resetEntropy(p); } |
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| 135 | Void decodeVPS ( TComVPS* pcVPS ) { m_pcEntropyDecoderIf->parseVPS(pcVPS); } |
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| 136 | Void decodeSPS ( TComSPS* pcSPS ) { m_pcEntropyDecoderIf->parseSPS(pcSPS); } |
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| 137 | Void decodePPS ( TComPPS* pcPPS ) { m_pcEntropyDecoderIf->parsePPS(pcPPS); } |
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| 138 | Void decodeSliceHeader ( TComSlice*& rpcSlice, ParameterSetManagerDecoder *parameterSetManager) { m_pcEntropyDecoderIf->parseSliceHeader(rpcSlice, parameterSetManager); } |
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| 139 | |
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| 140 | Void decodeTerminatingBit ( UInt& ruiIsLast ) { m_pcEntropyDecoderIf->parseTerminatingBit(ruiIsLast); } |
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| 141 | |
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| 142 | TDecEntropyIf* getEntropyDecoder() { return m_pcEntropyDecoderIf; } |
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| 143 | |
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| 144 | public: |
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| 145 | Void decodeSplitFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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| 146 | Void decodeSkipFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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| 147 | Void decodeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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| 148 | Void decodeMergeFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx ); |
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| 149 | Void decodeMergeIndex ( TComDataCU* pcSubCU, UInt uiPartIdx, UInt uiPartAddr, UInt uiDepth ); |
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| 150 | Void decodePredMode ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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| 151 | Void decodePartSize ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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| 152 | |
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| 153 | Void decodeIPCMInfo ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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| 154 | |
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| 155 | Void decodePredInfo ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU ); |
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| 156 | |
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| 157 | Void decodeIntraDirModeLuma ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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| 158 | Void decodeIntraDirModeChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ); |
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| 159 | |
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| 160 | Void decodeQP ( TComDataCU* pcCU, UInt uiAbsPartIdx ); |
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| 161 | |
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| 162 | Void updateContextTables ( SliceType eSliceType, Int iQp ) { m_pcEntropyDecoderIf->updateContextTables( eSliceType, iQp ); } |
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| 163 | |
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| 164 | #if INTRA_BL |
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| 165 | Void decodeIntraBLFlag ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth ); |
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| 166 | #endif |
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| 167 | |
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| 168 | private: |
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| 169 | Void xDecodeTransform ( TComDataCU* pcCU, UInt offsetLuma, UInt offsetChroma, UInt uiAbsPartIdx, UInt uiDepth, UInt width, UInt height, UInt uiTrIdx, Bool& bCodeDQP ); |
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| 170 | |
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| 171 | public: |
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| 172 | Void decodeCoeff ( TComDataCU* pcCU , UInt uiAbsPartIdx, UInt uiDepth, UInt uiWidth, UInt uiHeight, Bool& bCodeDQP ); |
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| 173 | |
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| 174 | };// END CLASS DEFINITION TDecEntropy |
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| 175 | |
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| 176 | //! \} |
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| 177 | |
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| 178 | #endif // __TDECENTROPY__ |
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| 179 | |
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