source: 3DVCSoftware/trunk/source/Lib/TLibEncoder/TEncSbac.h

Last change on this file was 1413, checked in by tech, 6 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) 2010-2017, 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           (const TComSlice *pSlice);
77  SliceType determineCabacInitIdx  (const TComSlice *pSlice);
78  Void  setBitstream           ( TComBitIf* p )  { m_pcBitIf = p; m_pcBinIf->init( p ); }
79
80  Void  load                   ( const TEncSbac* pSrc  );
81  Void  loadIntraDirMode       ( const TEncSbac* pScr, const ChannelType chType  );
82#if NH_3D
83  Void  loadIntraDepthDmm      ( const TEncSbac* pSrc );
84#endif
85  Void  store                  ( TEncSbac* pDest ) const;
86  Void  loadContexts           ( const TEncSbac* pSrc  );
87  Void  resetBits              ()                { m_pcBinIf->resetBits(); m_pcBitIf->resetBits(); }
88  UInt  getNumberOfWrittenBits ()                { return m_pcBinIf->getNumWrittenBits(); }
89  //--SBAC RD
90
91  Void  codeVPS                ( const TComVPS* pcVPS );
92  Void  codeSPS                ( const TComSPS* pcSPS     );
93  Void  codePPS                ( const TComPPS* pcPPS     );
94  Void  codeSliceHeader        ( TComSlice* pcSlice );
95  Void  codeTilesWPPEntryPoint ( TComSlice* pSlice );
96  Void  codeTerminatingBit     ( UInt uilsLast      );
97  Void  codeSliceFinish        ();
98  Void  codeSaoMaxUvlc       ( UInt code, UInt maxSymbol );
99  Void  codeSaoMerge         ( UInt  uiCode );
100  Void  codeSaoTypeIdx       ( UInt  uiCode);
101  Void  codeSaoUflc          ( UInt uiLength, UInt  uiCode );
102  Void  codeSAOSign          ( UInt  uiCode);  //<! code SAO offset sign
103
104  Void codeSAOOffsetParam(ComponentID compIdx, SAOOffset& ctbParam, Bool sliceEnabled, const Int channelBitDepth);
105  Void codeSAOBlkParam(SAOBlkParam& saoBlkParam, const BitDepths &bitDepths
106                    , Bool* sliceEnabled
107                    , Bool leftMergeAvail
108                    , Bool aboveMergeAvail
109                    , Bool onlyEstMergeInfo = false
110                    );
111
112private:
113  Void  xWriteUnarySymbol    ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset );
114  Void  xWriteUnaryMaxSymbol ( UInt uiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol );
115  Void  xWriteEpExGolomb     ( UInt uiSymbol, UInt uiCount );
116  Void  xWriteCoefRemainExGolomb ( UInt symbol, UInt &rParam, const Bool useLimitedPrefixLength, const Int maxLog2TrDynamicRange );
117#if NH_3D
118  Void  xWriteExGolombLevelDdc( UInt uiSymbol );
119  Void  xCodeDeltaDC         ( Pel valDeltaDC, UInt uiNumSeg );
120  Void  xCodeIntraDepthMode  ( TComDataCU* pcCU, UInt absPartIdx );
121  Void  xCodeDmmData         ( TComDataCU* pcCU, UInt absPartIdx );
122  Void  xCodeDmm1WedgeIdx    ( UInt uiTabIdx, Int iNumBit );
123#endif
124
125
126  Void  xCopyFrom            ( const TEncSbac* pSrc );
127  Void  xCopyContextsFrom    ( const TEncSbac* pSrc );
128
129protected:
130  TComBitIf*    m_pcBitIf;
131  TEncBinIf*    m_pcBinIf;
132
133  //--Adaptive loop filter
134
135public:
136  Void codeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx );
137  Void codeSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
138#if NH_3D
139  Void codeDIS           ( TComDataCU* pcCU, UInt uiAbsPartIdx );
140#endif
141  Void codeMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx );
142  Void codeMergeIndex    ( TComDataCU* pcCU, UInt uiAbsPartIdx );
143#if NH_3D
144  Void codeARPW          ( TComDataCU* pcCU, UInt uiAbsPartIdx );
145  Void codeICFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx );
146  Void  codeDeltaDC      ( TComDataCU* pcCU, UInt absPartIdx );
147  Void codeSDCFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx );
148  Void codeDBBPFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
149#endif
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       ( );
161  Void codeIntraDirLumaAng     ( TComDataCU* pcCU, UInt absPartIdx, Bool isMultiple);
162  Void codeIntraDirChroma      ( TComDataCU* pcCU, UInt uiAbsPartIdx );
163  Void codeInterDir            ( TComDataCU* pcCU, UInt uiAbsPartIdx );
164  Void codeRefFrmIdx           ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
165  Void codeMvd                 ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList );
166
167  Void codeCrossComponentPrediction( TComTU &rTu, ComponentID compID );
168
169  Void codeDeltaQP             ( TComDataCU* pcCU, UInt uiAbsPartIdx );
170  Void codeChromaQpAdjustment  ( TComDataCU* cu, UInt absPartIdx );
171
172  Void codeLastSignificantXY ( UInt uiPosX, UInt uiPosY, Int width, Int height, ComponentID component, UInt uiScanIdx );
173  Void codeCoeffNxN            ( TComTU &rTu, TCoeff* pcCoef, const ComponentID compID );
174  Void codeTransformSkipFlags ( TComTU &rTu, ComponentID component );
175
176  // -------------------------------------------------------------------------------------------------------------------
177  // for RD-optimizatioon
178  // -------------------------------------------------------------------------------------------------------------------
179
180  Void estBit               (estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, ChannelType chType, COEFF_SCAN_TYPE scanType);
181  Void estCBFBit                     ( estBitsSbacStruct* pcEstBitsSbac );
182  Void estSignificantCoeffGroupMapBit( estBitsSbacStruct* pcEstBitsSbac, ChannelType chType );
183  Void estSignificantMapBit          ( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, ChannelType chType );
184  Void estLastSignificantPositionBit ( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, ChannelType chType, COEFF_SCAN_TYPE scanType );
185  Void estSignificantCoefficientsBit ( estBitsSbacStruct* pcEstBitsSbac, ChannelType chType );
186
187  Void codeExplicitRdpcmMode            ( TComTU &rTu, const ComponentID compID );
188
189
190  TEncBinIf* getEncBinIf()  { return m_pcBinIf; }
191private:
192  ContextModel         m_contextModels[MAX_NUM_CTX_MOD];
193  Int                  m_numContextModels;
194  ContextModel3DBuffer m_cCUSplitFlagSCModel;
195  ContextModel3DBuffer m_cCUSkipFlagSCModel;
196#if NH_3D
197  ContextModel3DBuffer m_cCUDISFlagSCModel;
198  ContextModel3DBuffer m_cCUDISTypeSCModel;
199#endif
200  ContextModel3DBuffer m_cCUMergeFlagExtSCModel;
201  ContextModel3DBuffer m_cCUMergeIdxExtSCModel;
202#if NH_3D
203  ContextModel3DBuffer m_cCUPUARPWSCModel;
204  ContextModel3DBuffer m_cCUICFlagSCModel;
205#endif
206  ContextModel3DBuffer m_cCUPartSizeSCModel;
207  ContextModel3DBuffer m_cCUPredModeSCModel;
208  ContextModel3DBuffer m_cCUIntraPredSCModel;
209  ContextModel3DBuffer m_cCUChromaPredSCModel;
210  ContextModel3DBuffer m_cCUDeltaQpSCModel;
211  ContextModel3DBuffer m_cCUInterDirSCModel;
212  ContextModel3DBuffer m_cCURefPicSCModel;
213  ContextModel3DBuffer m_cCUMvdSCModel;
214  ContextModel3DBuffer m_cCUQtCbfSCModel;
215  ContextModel3DBuffer m_cCUTransSubdivFlagSCModel;
216  ContextModel3DBuffer m_cCUQtRootCbfSCModel;
217
218  ContextModel3DBuffer m_cCUSigCoeffGroupSCModel;
219  ContextModel3DBuffer m_cCUSigSCModel;
220  ContextModel3DBuffer m_cCuCtxLastX;
221  ContextModel3DBuffer m_cCuCtxLastY;
222  ContextModel3DBuffer m_cCUOneSCModel;
223  ContextModel3DBuffer m_cCUAbsSCModel;
224
225  ContextModel3DBuffer m_cMVPIdxSCModel;
226
227  ContextModel3DBuffer m_cSaoMergeSCModel;
228  ContextModel3DBuffer m_cSaoTypeIdxSCModel;
229  ContextModel3DBuffer m_cTransformSkipSCModel;
230  ContextModel3DBuffer m_CUTransquantBypassFlagSCModel;
231  ContextModel3DBuffer m_explicitRdpcmFlagSCModel;
232  ContextModel3DBuffer m_explicitRdpcmDirSCModel;
233  ContextModel3DBuffer m_cCrossComponentPredictionSCModel;
234
235  ContextModel3DBuffer m_ChromaQpAdjFlagSCModel;
236  ContextModel3DBuffer m_ChromaQpAdjIdcSCModel;
237
238#if NH_3D
239  ContextModel3DBuffer m_cNotDmmFlagSCModel;
240  ContextModel3DBuffer m_cDmmModeSCModel;
241  ContextModel3DBuffer m_cDdcDataSCModel;
242  ContextModel3DBuffer m_cSDCFlagSCModel;
243  ContextModel3DBuffer m_cSDCResidualFlagSCModel;
244  ContextModel3DBuffer m_cSDCResidualSCModel;
245  ContextModel3DBuffer m_cDdcFlagSCModel;
246  ContextModel3DBuffer m_cDBBPFlagSCModel;
247#endif
248
249  UInt m_golombRiceAdaptationStatistics[RExt__GOLOMB_RICE_ADAPTATION_STATISTICS_SETS];
250};
251
252//! \}
253
254#endif // !defined(AFX_TENCSBAC_H__DDA7CDC4_EDE3_4015_9D32_2156249C82AA__INCLUDED_)
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