source: SHVCSoftware/branches/SHM-dev/source/Lib/TLibEncoder/TEncSbac.h @ 1303

Last change on this file since 1303 was 1291, checked in by seregin, 10 years ago

port rev 4325
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[313]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
[1029]4 * granted under this license.
[313]5 *
[1259]6 * Copyright (c) 2010-2015, ITU/ISO/IEC
[313]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.
17 *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
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 */
33
34/** \file     TEncSbac.h
35    \brief    Context-adaptive entropy encoder class (header)
36*/
37
38#ifndef __TENCSBAC__
39#define __TENCSBAC__
40
41#if _MSC_VER > 1000
42#pragma once
43#endif // _MSC_VER > 1000
44
45#include "TLibCommon/TComBitStream.h"
46#include "TLibCommon/ContextTables.h"
47#include "TLibCommon/ContextModel.h"
48#include "TLibCommon/ContextModel3DBuffer.h"
49#include "TEncEntropy.h"
50#include "TEncBinCoder.h"
51#include "TEncBinCoderCABAC.h"
52#if FAST_BIT_EST
53#include "TEncBinCoderCABACCounter.h"
54#endif
55
56class TEncTop;
57
58//! \ingroup TLibEncoder
59//! \{
60
61// ====================================================================================================================
62// Class definition
63// ====================================================================================================================
64
65/// SBAC encoder class
66class TEncSbac : public TEncEntropyIf
67{
68public:
69  TEncSbac();
70  virtual ~TEncSbac();
[1029]71
[313]72  Void  init                   ( TEncBinIf* p )  { m_pcBinIf = p; }
73  Void  uninit                 ()                { m_pcBinIf = 0; }
74
75  //  Virtual list
[1291]76  Void  resetEntropy           (const TComSlice *pSlice);
77  SliceType determineCabacInitIdx  (const TComSlice *pSlice);
[313]78  Void  setBitstream           ( TComBitIf* p )  { m_pcBitIf = p; m_pcBinIf->init( p ); }
[1029]79
80  Void  load                   ( const TEncSbac* pSrc  );
81  Void  loadIntraDirMode       ( const TEncSbac* pScr, const ChannelType chType  );
82  Void  store                  ( TEncSbac* pDest ) const;
83  Void  loadContexts           ( const TEncSbac* pSrc  );
[313]84  Void  resetBits              ()                { m_pcBinIf->resetBits(); m_pcBitIf->resetBits(); }
85  UInt  getNumberOfWrittenBits ()                { return m_pcBinIf->getNumWrittenBits(); }
86  //--SBAC RD
87
[1235]88  Void  codeVPS                ( const TComVPS* pcVPS );
89  Void  codeSPS                ( const TComSPS* pcSPS     );
[1212]90#if CGS_3D_ASYMLUT
[1235]91  Void  codePPS                ( const TComPPS* pcPPS, TEnc3DAsymLUT * pc3DAsymLUT     );
92#else
93  Void  codePPS                ( const TComPPS* pcPPS     );
[713]94#endif
[1029]95  Void  codeSliceHeader        ( TComSlice* pcSlice );
96  Void  codeTilesWPPEntryPoint ( TComSlice* pSlice );
97  Void  codeTerminatingBit     ( UInt uilsLast      );
98  Void  codeSliceFinish        ();
99  Void  codeSaoMaxUvlc       ( UInt code, UInt maxSymbol );
100  Void  codeSaoMerge         ( UInt  uiCode );
101  Void  codeSaoTypeIdx       ( UInt  uiCode);
102  Void  codeSaoUflc          ( UInt uiLength, UInt  uiCode );
103  Void  codeSAOSign          ( UInt  uiCode);  //<! code SAO offset sign
[313]104
[1287]105  Void codeSAOOffsetParam(ComponentID compIdx, SAOOffset& ctbParam, Bool sliceEnabled, const Int channelBitDepth);
106  Void codeSAOBlkParam(SAOBlkParam& saoBlkParam, const BitDepths &bitDepths
[644]107                    , Bool* sliceEnabled
108                    , Bool leftMergeAvail
109                    , Bool aboveMergeAvail
110                    , Bool onlyEstMergeInfo = false
111                    );
[1287]112
113#if SVC_EXTENSION
114  Void  codeSliceHeaderExtn     ( TComSlice* pSlice, Int shBitsWrittenTillNow );
[644]115#endif 
[540]116
[313]117private:
118  Void  xWriteUnarySymbol    ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset );
119  Void  xWriteUnaryMaxSymbol ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol );
120  Void  xWriteEpExGolomb     ( UInt uiSymbol, UInt uiCount );
[1285]121  Void  xWriteCoefRemainExGolomb ( UInt symbol, UInt &rParam, const Bool useLimitedPrefixLength, const ChannelType channelType, const Int maxLog2TrDynamicRange );
[1029]122
123  Void  xCopyFrom            ( const TEncSbac* pSrc );
124  Void  xCopyContextsFrom    ( const TEncSbac* pSrc );
125
[313]126  Void codeDFFlag( UInt /*uiCode*/, const Char* /*pSymbolName*/ )       {printf("Not supported in codeDFFlag()\n"); assert(0); exit(1);};
127  Void codeDFSvlc( Int /*iCode*/, const Char* /*pSymbolName*/ )         {printf("Not supported in codeDFSvlc()\n"); assert(0); exit(1);};
128
129protected:
130  TComBitIf*    m_pcBitIf;
131  TEncBinIf*    m_pcBinIf;
132
133  //--Adaptive loop filter
[1029]134
[313]135public:
136  Void codeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx );
137  Void codeSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
138  Void codeMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx );
139  Void codeMergeIndex    ( TComDataCU* pcCU, UInt uiAbsPartIdx );
140  Void codeSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
141  Void codeMVPIdx        ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
[345]142
[313]143  Void codePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
144  Void codePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
145  Void codeIPCMInfo      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
146  Void codeTransformSubdivFlag ( UInt uiSymbol, UInt uiCtx );
[1029]147  Void codeQtCbf               ( TComTU & rTu, const ComponentID compID, const Bool lowestLevel );
[313]148  Void codeQtRootCbf           ( TComDataCU* pcCU, UInt uiAbsPartIdx );
[1029]149  Void codeQtCbfZero           ( TComTU &rTu, const ChannelType chType );
[313]150  Void codeQtRootCbfZero       ( TComDataCU* pcCU );
151  Void codeIntraDirLumaAng     ( TComDataCU* pcCU, UInt absPartIdx, Bool isMultiple);
[1029]152
[313]153  Void codeIntraDirChroma      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
154  Void codeInterDir            ( TComDataCU* pcCU, UInt uiAbsPartIdx );
155  Void codeRefFrmIdx           ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
156  Void codeMvd                 ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
[1029]157
158  Void codeCrossComponentPrediction( TComTU &rTu, ComponentID compID );
159
[313]160  Void codeDeltaQP             ( TComDataCU* pcCU, UInt uiAbsPartIdx );
[1029]161  Void codeChromaQpAdjustment  ( TComDataCU* cu, UInt absPartIdx );
[313]162
[1029]163  Void codeLastSignificantXY ( UInt uiPosX, UInt uiPosY, Int width, Int height, ComponentID component, UInt uiScanIdx );
164  Void codeCoeffNxN            ( TComTU &rTu, TCoeff* pcCoef, const ComponentID compID );
165  Void codeTransformSkipFlags ( TComTU &rTu, ComponentID component );
166
[313]167  // -------------------------------------------------------------------------------------------------------------------
168  // for RD-optimizatioon
169  // -------------------------------------------------------------------------------------------------------------------
[1029]170
171  Void estBit               (estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, ChannelType chType);
[313]172  Void estCBFBit                     ( estBitsSbacStruct* pcEstBitsSbac );
[1029]173  Void estSignificantCoeffGroupMapBit( estBitsSbacStruct* pcEstBitsSbac, ChannelType chType );
174  Void estSignificantMapBit          ( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, ChannelType chType );
175  Void estLastSignificantPositionBit ( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, ChannelType chType );
176  Void estSignificantCoefficientsBit ( estBitsSbacStruct* pcEstBitsSbac, ChannelType chType );
177
178  Void codeExplicitRdpcmMode            ( TComTU &rTu, const ComponentID compID );
179
180
[313]181  TEncBinIf* getEncBinIf()  { return m_pcBinIf; }
182private:
183  ContextModel         m_contextModels[MAX_NUM_CTX_MOD];
184  Int                  m_numContextModels;
185  ContextModel3DBuffer m_cCUSplitFlagSCModel;
186  ContextModel3DBuffer m_cCUSkipFlagSCModel;
187  ContextModel3DBuffer m_cCUMergeFlagExtSCModel;
188  ContextModel3DBuffer m_cCUMergeIdxExtSCModel;
189  ContextModel3DBuffer m_cCUPartSizeSCModel;
190  ContextModel3DBuffer m_cCUPredModeSCModel;
191  ContextModel3DBuffer m_cCUIntraPredSCModel;
192  ContextModel3DBuffer m_cCUChromaPredSCModel;
193  ContextModel3DBuffer m_cCUDeltaQpSCModel;
194  ContextModel3DBuffer m_cCUInterDirSCModel;
195  ContextModel3DBuffer m_cCURefPicSCModel;
196  ContextModel3DBuffer m_cCUMvdSCModel;
197  ContextModel3DBuffer m_cCUQtCbfSCModel;
198  ContextModel3DBuffer m_cCUTransSubdivFlagSCModel;
199  ContextModel3DBuffer m_cCUQtRootCbfSCModel;
[1029]200
[313]201  ContextModel3DBuffer m_cCUSigCoeffGroupSCModel;
202  ContextModel3DBuffer m_cCUSigSCModel;
203  ContextModel3DBuffer m_cCuCtxLastX;
204  ContextModel3DBuffer m_cCuCtxLastY;
205  ContextModel3DBuffer m_cCUOneSCModel;
206  ContextModel3DBuffer m_cCUAbsSCModel;
[1029]207
[313]208  ContextModel3DBuffer m_cMVPIdxSCModel;
[1029]209
[313]210  ContextModel3DBuffer m_cSaoMergeSCModel;
211  ContextModel3DBuffer m_cSaoTypeIdxSCModel;
212  ContextModel3DBuffer m_cTransformSkipSCModel;
213  ContextModel3DBuffer m_CUTransquantBypassFlagSCModel;
[1029]214  ContextModel3DBuffer m_explicitRdpcmFlagSCModel;
215  ContextModel3DBuffer m_explicitRdpcmDirSCModel;
216  ContextModel3DBuffer m_cCrossComponentPredictionSCModel;
217
218  ContextModel3DBuffer m_ChromaQpAdjFlagSCModel;
219  ContextModel3DBuffer m_ChromaQpAdjIdcSCModel;
220
221  UInt m_golombRiceAdaptationStatistics[RExt__GOLOMB_RICE_ADAPTATION_STATISTICS_SETS];
[313]222};
223
224//! \}
225
226#endif // !defined(AFX_TENCSBAC_H__DDA7CDC4_EDE3_4015_9D32_2156249C82AA__INCLUDED_)
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