source: SHVCSoftware/branches/SHM-6-dev/source/Lib/TLibEncoder/TEncSbac.h @ 771

Last change on this file since 771 was 677, checked in by qualcomm, 11 years ago

Integration of JCTVC-Q0048 Asymmetric 3D LUT based CGS
  • Property svn:eol-style set to native
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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
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4 * granted under this license. 
5 *
6 * Copyright (c) 2010-2014, ITU/ISO/IEC
7 * All rights reserved.
8 *
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10 * modification, are permitted provided that the following conditions are met:
11 *
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13 *    this list of conditions and the following disclaimer.
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18 *    be used to endorse or promote products derived from this software without
19 *    specific prior written permission.
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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
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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();
71 
72  Void  init                   ( TEncBinIf* p )  { m_pcBinIf = p; }
73  Void  uninit                 ()                { m_pcBinIf = 0; }
74
75  //  Virtual list
76  Void  resetEntropy           ();
77  Void  determineCabacInitIdx  ();
78  Void  setBitstream           ( TComBitIf* p )  { m_pcBitIf = p; m_pcBinIf->init( p ); }
79  Void  setSlice               ( TComSlice* p )  { m_pcSlice = p;                       }
80  // SBAC RD
81  Void  resetCoeffCost         ()                { m_uiCoeffCost = 0;  }
82  UInt  getCoeffCost           ()                { return  m_uiCoeffCost;  }
83 
84  Void  load                   ( TEncSbac* pScr  );
85  Void  loadIntraDirModeLuma   ( TEncSbac* pScr  );
86  Void  store                  ( TEncSbac* pDest );
87  Void  loadContexts           ( TEncSbac* pScr  );
88  Void  resetBits              ()                { m_pcBinIf->resetBits(); m_pcBitIf->resetBits(); }
89  UInt  getNumberOfWrittenBits ()                { return m_pcBinIf->getNumWrittenBits(); }
90  //--SBAC RD
91
92  Void  codeVPS                 ( TComVPS* pcVPS );
93  Void  codeSPS                 ( TComSPS* pcSPS     );
94  Void  codePPS                 ( TComPPS* pcPPS     
95#if Q0048_CGS_3D_ASYMLUT
96    , TEnc3DAsymLUT * pc3DAsymLUT
97#endif
98    );
99  Void  codeSliceHeader         ( TComSlice* pcSlice );
100  Void  codeTilesWPPEntryPoint( TComSlice* pSlice );
101  Void  codeTerminatingBit      ( UInt uilsLast      );
102  Void  codeSliceFinish         ();
103  Void  codeSaoMaxUvlc    ( UInt code, UInt maxSymbol );
104  Void  codeSaoMerge  ( UInt  uiCode );
105  Void  codeSaoTypeIdx    ( UInt  uiCode);
106  Void  codeSaoUflc       ( UInt uiLength, UInt  uiCode );
107  Void  codeSAOSign       ( UInt  uiCode);  //<! code SAO offset sign
108  Void  codeScalingList      ( TComScalingList* /*scalingList*/     ){ assert (0);  return;};
109
110#if SVC_EXTENSION
111#if POC_RESET_IDC_SIGNALLING
112  Void  codeSliceHeaderExtn     ( TComSlice* pSlice, Int shBitsWrittenTillNow );
113#endif
114  Void codeSAOOffsetParam(Int compIdx, SAOOffset& ctbParam, Bool sliceEnabled, UInt* saoMaxOffsetQVal);
115  Void codeSAOBlkParam(SAOBlkParam& saoBlkParam
116                    , UInt* saoMaxOffsetQVal
117                    , Bool* sliceEnabled
118                    , Bool leftMergeAvail
119                    , Bool aboveMergeAvail
120                    , Bool onlyEstMergeInfo = false
121                    );
122#else
123  Void codeSAOOffsetParam(Int compIdx, SAOOffset& ctbParam, Bool sliceEnabled);
124  Void codeSAOBlkParam(SAOBlkParam& saoBlkParam
125                    , Bool* sliceEnabled
126                    , Bool leftMergeAvail
127                    , Bool aboveMergeAvail
128                    , Bool onlyEstMergeInfo = false
129                    );
130#endif 
131
132private:
133  Void  xWriteUnarySymbol    ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset );
134  Void  xWriteUnaryMaxSymbol ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol );
135  Void  xWriteEpExGolomb     ( UInt uiSymbol, UInt uiCount );
136  Void  xWriteCoefRemainExGolomb ( UInt symbol, UInt &rParam );
137 
138  Void  xCopyFrom            ( TEncSbac* pSrc );
139  Void  xCopyContextsFrom    ( TEncSbac* pSrc ); 
140 
141  Void codeDFFlag( UInt /*uiCode*/, const Char* /*pSymbolName*/ )       {printf("Not supported in codeDFFlag()\n"); assert(0); exit(1);};
142  Void codeDFSvlc( Int /*iCode*/, const Char* /*pSymbolName*/ )         {printf("Not supported in codeDFSvlc()\n"); assert(0); exit(1);};
143
144protected:
145  TComBitIf*    m_pcBitIf;
146  TComSlice*    m_pcSlice;
147  TEncBinIf*    m_pcBinIf;
148  //SBAC RD
149  UInt          m_uiCoeffCost;
150
151  //--Adaptive loop filter
152 
153public:
154  Void codeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx );
155  Void codeSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
156  Void codeMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx );
157  Void codeMergeIndex    ( TComDataCU* pcCU, UInt uiAbsPartIdx );
158  Void codeSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
159  Void codeMVPIdx        ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
160
161  Void codePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
162  Void codePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
163  Void codeIPCMInfo      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
164  Void codeTransformSubdivFlag ( UInt uiSymbol, UInt uiCtx );
165  Void codeQtCbf               ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth );
166  Void codeQtRootCbf           ( TComDataCU* pcCU, UInt uiAbsPartIdx );
167  Void codeQtCbfZero           ( TComDataCU* pcCU, TextType eType, UInt uiTrDepth );
168  Void codeQtRootCbfZero       ( TComDataCU* pcCU );
169  Void codeIntraDirLumaAng     ( TComDataCU* pcCU, UInt absPartIdx, Bool isMultiple);
170 
171  Void codeIntraDirChroma      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
172  Void codeInterDir            ( TComDataCU* pcCU, UInt uiAbsPartIdx );
173  Void codeRefFrmIdx           ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
174  Void codeMvd                 ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
175 
176  Void codeDeltaQP             ( TComDataCU* pcCU, UInt uiAbsPartIdx );
177 
178  Void codeLastSignificantXY ( UInt uiPosX, UInt uiPosY, Int width, Int height, TextType eTType, UInt uiScanIdx );
179  Void codeCoeffNxN            ( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType );
180  void codeTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, TextType eTType );
181
182  // -------------------------------------------------------------------------------------------------------------------
183  // for RD-optimizatioon
184  // -------------------------------------------------------------------------------------------------------------------
185 
186  Void estBit               (estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, TextType eTType);
187  Void estCBFBit                     ( estBitsSbacStruct* pcEstBitsSbac );
188  Void estSignificantCoeffGroupMapBit( estBitsSbacStruct* pcEstBitsSbac, TextType eTType );
189  Void estSignificantMapBit          ( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, TextType eTType );
190  Void estSignificantCoefficientsBit ( estBitsSbacStruct* pcEstBitsSbac, TextType eTType );
191 
192  Void updateContextTables           ( SliceType eSliceType, Int iQp, Bool bExecuteFinish=true  );
193  Void updateContextTables           ( SliceType eSliceType, Int iQp  ) { this->updateContextTables( eSliceType, iQp, true); };
194 
195  TEncBinIf* getEncBinIf()  { return m_pcBinIf; }
196private:
197  UInt                 m_uiLastQp;
198 
199  ContextModel         m_contextModels[MAX_NUM_CTX_MOD];
200  Int                  m_numContextModels;
201  ContextModel3DBuffer m_cCUSplitFlagSCModel;
202  ContextModel3DBuffer m_cCUSkipFlagSCModel;
203  ContextModel3DBuffer m_cCUMergeFlagExtSCModel;
204  ContextModel3DBuffer m_cCUMergeIdxExtSCModel;
205  ContextModel3DBuffer m_cCUPartSizeSCModel;
206  ContextModel3DBuffer m_cCUPredModeSCModel;
207  ContextModel3DBuffer m_cCUIntraPredSCModel;
208  ContextModel3DBuffer m_cCUChromaPredSCModel;
209  ContextModel3DBuffer m_cCUDeltaQpSCModel;
210  ContextModel3DBuffer m_cCUInterDirSCModel;
211  ContextModel3DBuffer m_cCURefPicSCModel;
212  ContextModel3DBuffer m_cCUMvdSCModel;
213  ContextModel3DBuffer m_cCUQtCbfSCModel;
214  ContextModel3DBuffer m_cCUTransSubdivFlagSCModel;
215  ContextModel3DBuffer m_cCUQtRootCbfSCModel;
216 
217  ContextModel3DBuffer m_cCUSigCoeffGroupSCModel;
218  ContextModel3DBuffer m_cCUSigSCModel;
219  ContextModel3DBuffer m_cCuCtxLastX;
220  ContextModel3DBuffer m_cCuCtxLastY;
221  ContextModel3DBuffer m_cCUOneSCModel;
222  ContextModel3DBuffer m_cCUAbsSCModel;
223 
224  ContextModel3DBuffer m_cMVPIdxSCModel;
225 
226  ContextModel3DBuffer m_cSaoMergeSCModel;
227  ContextModel3DBuffer m_cSaoTypeIdxSCModel;
228  ContextModel3DBuffer m_cTransformSkipSCModel;
229  ContextModel3DBuffer m_CUTransquantBypassFlagSCModel;
230};
231
232//! \}
233
234#endif // !defined(AFX_TENCSBAC_H__DDA7CDC4_EDE3_4015_9D32_2156249C82AA__INCLUDED_)
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