source: 3DVCSoftware/trunk/source/Lib/TLibDecoder/TDecSbac.h

Last change on this file was 1413, checked in by tech, 6 years ago

Merged HTM-16.2-dev@1412

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[5]1/* The copyright in this software is being made available under the BSD
2 * License, included below. This software may be subject to other third party
3 * and contributor rights, including patent rights, and no such rights are
[1313]4 * granted under this license.
[5]5 *
[1413]6 * Copyright (c) 2010-2017, ITU/ISO/IEC
[5]7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 *
12 *  * Redistributions of source code must retain the above copyright notice,
13 *    this list of conditions and the following disclaimer.
14 *  * Redistributions in binary form must reproduce the above copyright notice,
15 *    this list of conditions and the following disclaimer in the documentation
16 *    and/or other materials provided with the distribution.
[56]17 *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
[5]18 *    be used to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
26 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
27 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 */
[2]33
34/** \file     TDecSbac.h
35    \brief    SBAC decoder class (header)
36*/
37
38#ifndef __TDECSBAC__
39#define __TDECSBAC__
40
41
42#if _MSC_VER > 1000
43#pragma once
44#endif // _MSC_VER > 1000
45
46
47#include "TDecEntropy.h"
48#include "TDecBinCoder.h"
[56]49#include "TLibCommon/ContextTables.h"
50#include "TLibCommon/ContextModel.h"
51#include "TLibCommon/ContextModel3DBuffer.h"
[2]52
[56]53//! \ingroup TLibDecoder
54//! \{
55
[2]56// ====================================================================================================================
57// Class definition
58// ====================================================================================================================
59
[1313]60class SEImessages;
61
[2]62/// SBAC decoder class
63class TDecSbac : public TDecEntropyIf
64{
65public:
66  TDecSbac();
67  virtual ~TDecSbac();
[1313]68
[2]69  Void  init                      ( TDecBinIf* p )    { m_pcTDecBinIf = p; }
70  Void  uninit                    (              )    { m_pcTDecBinIf = 0; }
[56]71
[1313]72  Void load                       ( const TDecSbac* pSrc );
73  Void loadContexts               ( const TDecSbac* pSrc );
74  Void xCopyFrom                  ( const TDecSbac* pSrc );
75  Void xCopyContextsFrom          ( const TDecSbac* pSrc );
76
[56]77  Void  resetEntropy (TComSlice* pSlice );
78  Void  setBitstream              ( TComInputBitstream* p  ) { m_pcBitstream = p; m_pcTDecBinIf->init( p ); }
[608]79  Void  parseVPS                  ( TComVPS* /*pcVPS*/ ) {}
[1124]80  Void  parseSPS                  ( TComSPS* /*pcSPS*/ ) {}
[608]81  Void  parsePPS                  ( TComPPS* /*pcPPS*/ ) {}
[1321]82#if NH_MV
83  Void  parseFirstSliceSegmentInPicFlag( TComSlice* /*pcSlice*/ ) {}
84  Void  parseSliceHeader          ( TComSlice* /*pcSlice*/, ParameterSetManager* /*parameterSetManager*/ ) {}
85#else
[1313]86  Void  parseSliceHeader          ( TComSlice* /*pcSlice*/, ParameterSetManager* /*parameterSetManager*/, const Int /*prevTid0POC*/) {}
[1321]87#endif
[2]88  Void  parseTerminatingBit       ( UInt& ruiBit );
[1313]89  Void  parseRemainingBytes       ( Bool noTrailingBytesExpected);
[56]90  Void  parseMVPIdx               ( Int& riMVPIdx          );
[443]91  Void  parseSaoMaxUvlc           ( UInt& val, UInt maxSymbol );
[1313]92  Void  parseSaoMerge             ( UInt&  ruiVal   );
[443]93  Void  parseSaoTypeIdx           ( UInt&  ruiVal  );
94  Void  parseSaoUflc              ( UInt uiLength, UInt& ruiVal     );
[1313]95  Void parseSAOBlkParam           (SAOBlkParam& saoBlkParam, Bool* sliceEnabled, Bool leftMergeAvail, Bool aboveMergeAvail, const BitDepths &bitDepths);
96  Void parseSaoSign               (UInt& val);
97
[2]98private:
[1313]99#if RExt__DECODER_DEBUG_BIT_STATISTICS
100  Void  xReadUnarySymbol    ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset, const class TComCodingStatisticsClassType &whichStat );
101  Void  xReadUnaryMaxSymbol ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol, const class TComCodingStatisticsClassType &whichStat );
102  Void  xReadEpExGolomb     ( UInt& ruiSymbol, UInt uiCount, const class TComCodingStatisticsClassType &whichStat );
103  Void  xReadCoefRemainExGolomb ( UInt &rSymbol, UInt &rParam, const Bool useLimitedPrefixLength, const Int maxLog2TrDynamicRange, const class TComCodingStatisticsClassType &whichStat );
104#else
[2]105  Void  xReadUnarySymbol    ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset );
106  Void  xReadUnaryMaxSymbol ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol );
107  Void  xReadEpExGolomb     ( UInt& ruiSymbol, UInt uiCount );
[1313]108  Void  xReadCoefRemainExGolomb ( UInt &rSymbol, UInt &rParam, const Bool useLimitedPrefixLength, const Int maxLog2TrDynamicRange );
109#endif
[1413]110#if NH_3D
[1313]111  Void  xReadExGolombLevelDdc( UInt& ruiSymbol );
112  Void  xParseDeltaDC        ( Pel& rValDeltaDC, UInt uiNumSeg );
113  Void  xParseIntraDepthMode ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
114  Void  xParseDmmData        ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
[608]115  Void  xParseDmm1WedgeIdx   ( UInt& ruiTabIdx, Int iNumBit );
116  Void  xParseSDCResidualData     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPart );
[833]117  Void  parseSDCFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
[1413]118  Void  parseDBBPFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
[608]119#endif
[1313]120
[2]121private:
[56]122  TComInputBitstream* m_pcBitstream;
[2]123  TDecBinIf*        m_pcTDecBinIf;
[1313]124
[608]125public:
[1313]126
[2]127  Void parseSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
[1413]128#if NH_3D
[1179]129  Void parseDIS          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
[1313]130  Void  parseDeltaDC      ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
131#endif
[608]132  Void parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
[2]133  Void parseSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
134  Void parseMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
[608]135  Void parseMergeIndex    ( TComDataCU* pcCU, UInt& ruiMergeIndex );
[1413]136#if NH_3D
[443]137  Void parseARPW          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
[608]138  Void parseICFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
139#endif
[2]140  Void parsePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
141  Void parsePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
[1313]142
[2]143  Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
144  Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
[608]145  Void parseInterDir      ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx );
146  Void parseRefFrmIdx     ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList );
[2]147  Void parseMvd           ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList );
[1313]148
149  Void parseCrossComponentPrediction ( class TComTU &rTu, ComponentID compID );
150
[2]151  Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize );
[1313]152  Void parseQtCbf         ( TComTU &rTu, const ComponentID compID, const Bool lowestLevel );
[608]153  Void parseQtRootCbf     ( UInt uiAbsPartIdx, UInt& uiQtRootCbf );
[1313]154
[2]155  Void parseDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
[1313]156  Void parseChromaQpAdjustment( TComDataCU* cu, UInt absPartIdx, UInt depth );
157
[56]158  Void parseIPCMInfo      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth);
[2]159
[1313]160  Void parseLastSignificantXY( UInt& uiPosLastX, UInt& uiPosLastY, Int width, Int height, ComponentID component, UInt uiScanIdx );
161  Void parseCoeffNxN      ( class TComTU &rTu, ComponentID compID  );
162  Void parseTransformSkipFlags ( class TComTU &rTu, ComponentID component );
[608]163
164  Void  parseScalingList ( TComScalingList* /*scalingList*/ ) {}
[56]165
[1313]166  Void  parseExplicitRdpcmMode( TComTU &rTu, ComponentID compID );
167
[2]168private:
[56]169  ContextModel         m_contextModels[MAX_NUM_CTX_MOD];
170  Int                  m_numContextModels;
171  ContextModel3DBuffer m_cCUSplitFlagSCModel;
[2]172  ContextModel3DBuffer m_cCUSkipFlagSCModel;
[1413]173#if NH_3D
[1179]174  ContextModel3DBuffer m_cCUDISFlagSCModel;
175  ContextModel3DBuffer m_cCUDISTypeSCModel;
[1039]176#endif
[2]177  ContextModel3DBuffer m_cCUMergeFlagExtSCModel;
178  ContextModel3DBuffer m_cCUMergeIdxExtSCModel;
[1413]179#if NH_3D
[608]180  ContextModel3DBuffer m_cCUPUARPWSCModel;
181  ContextModel3DBuffer m_cCUICFlagSCModel;
[443]182#endif
[2]183  ContextModel3DBuffer m_cCUPartSizeSCModel;
184  ContextModel3DBuffer m_cCUPredModeSCModel;
185  ContextModel3DBuffer m_cCUIntraPredSCModel;
186  ContextModel3DBuffer m_cCUChromaPredSCModel;
[56]187  ContextModel3DBuffer m_cCUDeltaQpSCModel;
[2]188  ContextModel3DBuffer m_cCUInterDirSCModel;
189  ContextModel3DBuffer m_cCURefPicSCModel;
190  ContextModel3DBuffer m_cCUMvdSCModel;
[56]191  ContextModel3DBuffer m_cCUQtCbfSCModel;
[2]192  ContextModel3DBuffer m_cCUTransSubdivFlagSCModel;
193  ContextModel3DBuffer m_cCUQtRootCbfSCModel;
[1313]194
[56]195  ContextModel3DBuffer m_cCUSigCoeffGroupSCModel;
[2]196  ContextModel3DBuffer m_cCUSigSCModel;
197  ContextModel3DBuffer m_cCuCtxLastX;
198  ContextModel3DBuffer m_cCuCtxLastY;
199  ContextModel3DBuffer m_cCUOneSCModel;
200  ContextModel3DBuffer m_cCUAbsSCModel;
[1313]201
[2]202  ContextModel3DBuffer m_cMVPIdxSCModel;
[1313]203
[443]204  ContextModel3DBuffer m_cSaoMergeSCModel;
205  ContextModel3DBuffer m_cSaoTypeIdxSCModel;
[608]206  ContextModel3DBuffer m_cTransformSkipSCModel;
207  ContextModel3DBuffer m_CUTransquantBypassFlagSCModel;
[1313]208  ContextModel3DBuffer m_explicitRdpcmFlagSCModel;
209  ContextModel3DBuffer m_explicitRdpcmDirSCModel;
210  ContextModel3DBuffer m_cCrossComponentPredictionSCModel;
[56]211
[1313]212  ContextModel3DBuffer m_ChromaQpAdjFlagSCModel;
213  ContextModel3DBuffer m_ChromaQpAdjIdcSCModel;
[1413]214#if NH_3D
[1313]215  ContextModel3DBuffer m_cNotDmmFlagSCModel;
216  ContextModel3DBuffer m_cDmmModeSCModel;
[608]217  ContextModel3DBuffer m_cDdcDataSCModel;
[1313]218  ContextModel3DBuffer m_cSDCFlagSCModel;
[608]219  ContextModel3DBuffer m_cSDCResidualFlagSCModel;
220  ContextModel3DBuffer m_cSDCResidualSCModel;
[1313]221  ContextModel3DBuffer m_cDdcFlagSCModel;
[833]222  ContextModel3DBuffer m_cDBBPFlagSCModel;
223#endif
[1313]224
225
226  UInt m_golombRiceAdaptationStatistics[RExt__GOLOMB_RICE_ADAPTATION_STATISTICS_SETS];
[2]227};
228
[56]229//! \}
230
[2]231#endif // !defined(AFX_TDECSBAC_H__CFCAAA19_8110_47F4_9A16_810C4B5499D5__INCLUDED_)
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