source: SHVCSoftware/trunk/source/Lib/TLibEncoder/TEncSbac.h @ 189

Last change on this file since 189 was 189, checked in by seregin, 12 years ago

merge with SHM-2.0-dev branch
File size: 9.7 KB
Line 
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
4 * granted under this license. 
5 *
6 * Copyright (c) 2010-2013, ITU/ISO/IEC
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();
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  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
104  Void  codeScalingList      ( TComScalingList* /*scalingList*/     ){ assert (0);  return;};
105
106private:
107  Void  xWriteUnarySymbol    ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset );
108  Void  xWriteUnaryMaxSymbol ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol );
109  Void  xWriteEpExGolomb     ( UInt uiSymbol, UInt uiCount );
110  Void  xWriteCoefRemainExGolomb ( UInt symbol, UInt &rParam );
111 
112  Void  xCopyFrom            ( TEncSbac* pSrc );
113  Void  xCopyContextsFrom    ( TEncSbac* pSrc ); 
114 
115  Void codeDFFlag( UInt /*uiCode*/, const Char* /*pSymbolName*/ )       {printf("Not supported in codeDFFlag()\n"); assert(0); exit(1);};
116  Void codeDFSvlc( Int /*iCode*/, const Char* /*pSymbolName*/ )         {printf("Not supported in codeDFSvlc()\n"); assert(0); exit(1);};
117
118protected:
119  TComBitIf*    m_pcBitIf;
120  TComSlice*    m_pcSlice;
121  TEncBinIf*    m_pcBinIf;
122  //SBAC RD
123  UInt          m_uiCoeffCost;
124
125  //--Adaptive loop filter
126 
127public:
128  Void codeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx );
129  Void codeSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
130  Void codeMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx );
131  Void codeMergeIndex    ( TComDataCU* pcCU, UInt uiAbsPartIdx );
132  Void codeSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
133  Void codeMVPIdx        ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
134 
135#if INTRA_BL
136  Void codeIntraBLFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
137#endif
138  Void codePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
139  Void codePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
140  Void codeIPCMInfo      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
141  Void codeTransformSubdivFlag ( UInt uiSymbol, UInt uiCtx );
142  Void codeQtCbf               ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth );
143  Void codeQtRootCbf           ( TComDataCU* pcCU, UInt uiAbsPartIdx );
144  Void codeQtCbfZero           ( TComDataCU* pcCU, TextType eType, UInt uiTrDepth );
145  Void codeQtRootCbfZero       ( TComDataCU* pcCU );
146  Void codeIntraDirLumaAng     ( TComDataCU* pcCU, UInt absPartIdx, Bool isMultiple);
147 
148  Void codeIntraDirChroma      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
149  Void codeInterDir            ( TComDataCU* pcCU, UInt uiAbsPartIdx );
150  Void codeRefFrmIdx           ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
151  Void codeMvd                 ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
152 
153  Void codeDeltaQP             ( TComDataCU* pcCU, UInt uiAbsPartIdx );
154 
155  Void codeLastSignificantXY ( UInt uiPosX, UInt uiPosY, Int width, Int height, TextType eTType, UInt uiScanIdx );
156  Void codeCoeffNxN            ( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType );
157  void codeTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, TextType eTType );
158
159  // -------------------------------------------------------------------------------------------------------------------
160  // for RD-optimizatioon
161  // -------------------------------------------------------------------------------------------------------------------
162 
163  Void estBit               (estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, TextType eTType);
164  Void estCBFBit                     ( estBitsSbacStruct* pcEstBitsSbac );
165  Void estSignificantCoeffGroupMapBit( estBitsSbacStruct* pcEstBitsSbac, TextType eTType );
166  Void estSignificantMapBit          ( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, TextType eTType );
167  Void estSignificantCoefficientsBit ( estBitsSbacStruct* pcEstBitsSbac, TextType eTType );
168 
169  Void updateContextTables           ( SliceType eSliceType, Int iQp, Bool bExecuteFinish=true  );
170  Void updateContextTables           ( SliceType eSliceType, Int iQp  ) { this->updateContextTables( eSliceType, iQp, true); };
171 
172  TEncBinIf* getEncBinIf()  { return m_pcBinIf; }
173private:
174  UInt                 m_uiLastQp;
175 
176  ContextModel         m_contextModels[MAX_NUM_CTX_MOD];
177  Int                  m_numContextModels;
178  ContextModel3DBuffer m_cCUSplitFlagSCModel;
179  ContextModel3DBuffer m_cCUSkipFlagSCModel;
180  ContextModel3DBuffer m_cCUMergeFlagExtSCModel;
181  ContextModel3DBuffer m_cCUMergeIdxExtSCModel;
182  ContextModel3DBuffer m_cCUPartSizeSCModel;
183  ContextModel3DBuffer m_cCUPredModeSCModel;
184  ContextModel3DBuffer m_cCUIntraPredSCModel;
185  ContextModel3DBuffer m_cCUChromaPredSCModel;
186  ContextModel3DBuffer m_cCUDeltaQpSCModel;
187  ContextModel3DBuffer m_cCUInterDirSCModel;
188  ContextModel3DBuffer m_cCURefPicSCModel;
189  ContextModel3DBuffer m_cCUMvdSCModel;
190  ContextModel3DBuffer m_cCUQtCbfSCModel;
191  ContextModel3DBuffer m_cCUTransSubdivFlagSCModel;
192  ContextModel3DBuffer m_cCUQtRootCbfSCModel;
193 
194  ContextModel3DBuffer m_cCUSigCoeffGroupSCModel;
195  ContextModel3DBuffer m_cCUSigSCModel;
196  ContextModel3DBuffer m_cCuCtxLastX;
197  ContextModel3DBuffer m_cCuCtxLastY;
198  ContextModel3DBuffer m_cCUOneSCModel;
199  ContextModel3DBuffer m_cCUAbsSCModel;
200 
201  ContextModel3DBuffer m_cMVPIdxSCModel;
202 
203  ContextModel3DBuffer m_cCUAMPSCModel;
204  ContextModel3DBuffer m_cSaoMergeSCModel;
205  ContextModel3DBuffer m_cSaoTypeIdxSCModel;
206  ContextModel3DBuffer m_cTransformSkipSCModel;
207  ContextModel3DBuffer m_CUTransquantBypassFlagSCModel;
208#if INTRA_BL
209  ContextModel3DBuffer m_cIntraBLPredFlagSCModel;
210#endif
211};
212
213//! \}
214
215#endif // !defined(AFX_TENCSBAC_H__DDA7CDC4_EDE3_4015_9D32_2156249C82AA__INCLUDED_)
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