source: SHVCSoftware/branches/SHM-dev/source/Lib/TLibEncoder/TEncSbac.h @ 1265

Last change on this file since 1265 was 1259, checked in by seregin, 9 years ago

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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
3 * and contributor rights, including patent rights, and no such rights are
4 * granted under this license.
5 *
6 * Copyright (c) 2010-2015, 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  SliceType determineCabacInitIdx  ();
78  Void  setBitstream           ( TComBitIf* p )  { m_pcBitIf = p; m_pcBinIf->init( p ); }
79  Void  setSlice               ( TComSlice* p )  { m_pcSlice = p;                       }
80
81  Void  load                   ( const TEncSbac* pSrc  );
82  Void  loadIntraDirMode       ( const TEncSbac* pScr, const ChannelType chType  );
83  Void  store                  ( TEncSbac* pDest ) const;
84  Void  loadContexts           ( const TEncSbac* pSrc  );
85  Void  resetBits              ()                { m_pcBinIf->resetBits(); m_pcBitIf->resetBits(); }
86  UInt  getNumberOfWrittenBits ()                { return m_pcBinIf->getNumWrittenBits(); }
87  //--SBAC RD
88
89  Void  codeVPS                ( const TComVPS* pcVPS );
90  Void  codeSPS                ( const TComSPS* pcSPS     );
91#if CGS_3D_ASYMLUT
92  Void  codePPS                ( const TComPPS* pcPPS, TEnc3DAsymLUT * pc3DAsymLUT     );
93#else
94  Void  codePPS                ( const TComPPS* pcPPS     );
95#endif
96  Void  codeSliceHeader        ( TComSlice* pcSlice );
97  Void  codeTilesWPPEntryPoint ( TComSlice* pSlice );
98  Void  codeTerminatingBit     ( UInt uilsLast      );
99  Void  codeSliceFinish        ();
100  Void  codeSaoMaxUvlc       ( UInt code, UInt maxSymbol );
101  Void  codeSaoMerge         ( UInt  uiCode );
102  Void  codeSaoTypeIdx       ( UInt  uiCode);
103  Void  codeSaoUflc          ( UInt uiLength, UInt  uiCode );
104  Void  codeSAOSign          ( UInt  uiCode);  //<! code SAO offset sign
105
106#if SVC_EXTENSION
107  Void  codeSliceHeaderExtn     ( TComSlice* pSlice, Int shBitsWrittenTillNow );
108  Void  codeSAOOffsetParam(ComponentID compIdx, SAOOffset& ctbParam, Bool sliceEnabled, UInt* saoMaxOffsetQVal);
109  Void  codeSAOBlkParam(SAOBlkParam& saoBlkParam
110                    , UInt* saoMaxOffsetQVal
111                    , Bool* sliceEnabled
112                    , Bool leftMergeAvail
113                    , Bool aboveMergeAvail
114                    , Bool onlyEstMergeInfo = false
115                    );
116#else
117  Void codeSAOOffsetParam(ComponentID compIdx, SAOOffset& ctbParam, Bool sliceEnabled);
118  Void codeSAOBlkParam(SAOBlkParam& saoBlkParam
119                    , Bool* sliceEnabled
120                    , Bool leftMergeAvail
121                    , Bool aboveMergeAvail
122                    , Bool onlyEstMergeInfo = false
123                    );
124#endif 
125
126private:
127  Void  xWriteUnarySymbol    ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset );
128  Void  xWriteUnaryMaxSymbol ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol );
129  Void  xWriteEpExGolomb     ( UInt uiSymbol, UInt uiCount );
130  Void  xWriteCoefRemainExGolomb ( UInt symbol, UInt &rParam, const Bool useLimitedPrefixLength, const ChannelType channelType );
131
132  Void  xCopyFrom            ( const TEncSbac* pSrc );
133  Void  xCopyContextsFrom    ( const TEncSbac* pSrc );
134
135  Void codeDFFlag( UInt /*uiCode*/, const Char* /*pSymbolName*/ )       {printf("Not supported in codeDFFlag()\n"); assert(0); exit(1);};
136  Void codeDFSvlc( Int /*iCode*/, const Char* /*pSymbolName*/ )         {printf("Not supported in codeDFSvlc()\n"); assert(0); exit(1);};
137
138protected:
139  TComBitIf*    m_pcBitIf;
140  TComSlice*    m_pcSlice;
141  TEncBinIf*    m_pcBinIf;
142
143  //--Adaptive loop filter
144
145public:
146  Void codeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx );
147  Void codeSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
148  Void codeMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx );
149  Void codeMergeIndex    ( TComDataCU* pcCU, UInt uiAbsPartIdx );
150  Void codeSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
151  Void codeMVPIdx        ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
152
153  Void codePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
154  Void codePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
155  Void codeIPCMInfo      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
156  Void codeTransformSubdivFlag ( UInt uiSymbol, UInt uiCtx );
157  Void codeQtCbf               ( TComTU & rTu, const ComponentID compID, const Bool lowestLevel );
158  Void codeQtRootCbf           ( TComDataCU* pcCU, UInt uiAbsPartIdx );
159  Void codeQtCbfZero           ( TComTU &rTu, const ChannelType chType );
160  Void codeQtRootCbfZero       ( TComDataCU* pcCU );
161  Void codeIntraDirLumaAng     ( TComDataCU* pcCU, UInt absPartIdx, Bool isMultiple);
162
163  Void codeIntraDirChroma      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
164  Void codeInterDir            ( TComDataCU* pcCU, UInt uiAbsPartIdx );
165  Void codeRefFrmIdx           ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
166  Void codeMvd                 ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
167
168  Void codeCrossComponentPrediction( TComTU &rTu, ComponentID compID );
169
170  Void codeDeltaQP             ( TComDataCU* pcCU, UInt uiAbsPartIdx );
171  Void codeChromaQpAdjustment  ( TComDataCU* cu, UInt absPartIdx );
172
173  Void codeLastSignificantXY ( UInt uiPosX, UInt uiPosY, Int width, Int height, ComponentID component, UInt uiScanIdx );
174  Void codeCoeffNxN            ( TComTU &rTu, TCoeff* pcCoef, const ComponentID compID );
175  Void codeTransformSkipFlags ( TComTU &rTu, ComponentID component );
176
177  // -------------------------------------------------------------------------------------------------------------------
178  // for RD-optimizatioon
179  // -------------------------------------------------------------------------------------------------------------------
180
181  Void estBit               (estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, ChannelType chType);
182  Void estCBFBit                     ( estBitsSbacStruct* pcEstBitsSbac );
183  Void estSignificantCoeffGroupMapBit( estBitsSbacStruct* pcEstBitsSbac, ChannelType chType );
184  Void estSignificantMapBit          ( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, ChannelType chType );
185  Void estLastSignificantPositionBit ( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, ChannelType chType );
186  Void estSignificantCoefficientsBit ( estBitsSbacStruct* pcEstBitsSbac, ChannelType chType );
187
188  Void codeExplicitRdpcmMode            ( TComTU &rTu, const ComponentID compID );
189
190
191  TEncBinIf* getEncBinIf()  { return m_pcBinIf; }
192private:
193  ContextModel         m_contextModels[MAX_NUM_CTX_MOD];
194  Int                  m_numContextModels;
195  ContextModel3DBuffer m_cCUSplitFlagSCModel;
196  ContextModel3DBuffer m_cCUSkipFlagSCModel;
197  ContextModel3DBuffer m_cCUMergeFlagExtSCModel;
198  ContextModel3DBuffer m_cCUMergeIdxExtSCModel;
199  ContextModel3DBuffer m_cCUPartSizeSCModel;
200  ContextModel3DBuffer m_cCUPredModeSCModel;
201  ContextModel3DBuffer m_cCUIntraPredSCModel;
202  ContextModel3DBuffer m_cCUChromaPredSCModel;
203  ContextModel3DBuffer m_cCUDeltaQpSCModel;
204  ContextModel3DBuffer m_cCUInterDirSCModel;
205  ContextModel3DBuffer m_cCURefPicSCModel;
206  ContextModel3DBuffer m_cCUMvdSCModel;
207  ContextModel3DBuffer m_cCUQtCbfSCModel;
208  ContextModel3DBuffer m_cCUTransSubdivFlagSCModel;
209  ContextModel3DBuffer m_cCUQtRootCbfSCModel;
210
211  ContextModel3DBuffer m_cCUSigCoeffGroupSCModel;
212  ContextModel3DBuffer m_cCUSigSCModel;
213  ContextModel3DBuffer m_cCuCtxLastX;
214  ContextModel3DBuffer m_cCuCtxLastY;
215  ContextModel3DBuffer m_cCUOneSCModel;
216  ContextModel3DBuffer m_cCUAbsSCModel;
217
218  ContextModel3DBuffer m_cMVPIdxSCModel;
219
220  ContextModel3DBuffer m_cSaoMergeSCModel;
221  ContextModel3DBuffer m_cSaoTypeIdxSCModel;
222  ContextModel3DBuffer m_cTransformSkipSCModel;
223  ContextModel3DBuffer m_CUTransquantBypassFlagSCModel;
224  ContextModel3DBuffer m_explicitRdpcmFlagSCModel;
225  ContextModel3DBuffer m_explicitRdpcmDirSCModel;
226  ContextModel3DBuffer m_cCrossComponentPredictionSCModel;
227
228  ContextModel3DBuffer m_ChromaQpAdjFlagSCModel;
229  ContextModel3DBuffer m_ChromaQpAdjIdcSCModel;
230
231  UInt m_golombRiceAdaptationStatistics[RExt__GOLOMB_RICE_ADAPTATION_STATISTICS_SETS];
232};
233
234//! \}
235
236#endif // !defined(AFX_TENCSBAC_H__DDA7CDC4_EDE3_4015_9D32_2156249C82AA__INCLUDED_)
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