source: 3DVCSoftware/trunk/source/Lib/TLibDecoder/TDecSbac.h @ 1198

Last change on this file since 1198 was 1196, checked in by tech, 10 years ago

Merged 14.0-dev0@1187.
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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     TDecSbac.h
35    \brief    SBAC decoder class (header)
36*/
37
38#ifndef __TDECSBAC__
39#define __TDECSBAC__
40
41
42#if _MSC_VER > 1000
43#pragma once
44#endif // _MSC_VER > 1000
45
46
47#include "TDecEntropy.h"
48#include "TDecBinCoder.h"
49#include "TLibCommon/ContextTables.h"
50#include "TLibCommon/ContextModel.h"
51#include "TLibCommon/ContextModel3DBuffer.h"
52
53//! \ingroup TLibDecoder
54//! \{
55
56// ====================================================================================================================
57// Class definition
58// ====================================================================================================================
59
60/// SBAC decoder class
61class TDecSbac : public TDecEntropyIf
62{
63public:
64  TDecSbac();
65  virtual ~TDecSbac();
66 
67  Void  init                      ( TDecBinIf* p )    { m_pcTDecBinIf = p; }
68  Void  uninit                    (              )    { m_pcTDecBinIf = 0; }
69 
70  Void load                          ( TDecSbac* pScr );
71  Void loadContexts                  ( TDecSbac* pScr );
72  Void xCopyFrom           ( TDecSbac* pSrc );
73  Void xCopyContextsFrom       ( TDecSbac* pSrc );
74
75  Void  resetEntropy (TComSlice* pSlice );
76  Void  setBitstream              ( TComInputBitstream* p  ) { m_pcBitstream = p; m_pcTDecBinIf->init( p ); }
77  Void  parseVPS                  ( TComVPS* /*pcVPS*/ ) {}
78  Void  parseSPS                  ( TComSPS* /*pcSPS*/ ) {}
79#if H_3D
80  Void  parsePPS                  ( TComPPS* /*pcPPS*/, TComVPS* /*pcVPS*/ ) {}
81#else
82  Void  parsePPS                  ( TComPPS* /*pcPPS*/ ) {}
83#endif
84
85#if H_MV
86  Void  parseSliceHeader          ( TComSlice*& /*rpcSlice*/, ParameterSetManagerDecoder* /*parameterSetManager*/, Int targetOlsIdx ) {}
87#else
88  Void  parseSliceHeader          ( TComSlice*& /*rpcSlice*/, ParameterSetManagerDecoder* /*parameterSetManager*/ ) {}
89#endif
90  Void  parseTerminatingBit       ( UInt& ruiBit );
91  Void  parseMVPIdx               ( Int& riMVPIdx          );
92  Void  parseSaoMaxUvlc           ( UInt& val, UInt maxSymbol );
93  Void  parseSaoMerge         ( UInt&  ruiVal   );
94  Void  parseSaoTypeIdx           ( UInt&  ruiVal  );
95  Void  parseSaoUflc              ( UInt uiLength, UInt& ruiVal     );
96  Void parseSAOBlkParam (SAOBlkParam& saoBlkParam, Bool* sliceEnabled, Bool leftMergeAvail, Bool aboveMergeAvail);
97  Void parseSaoSign(UInt& val);
98private:
99  Void  xReadUnarySymbol    ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset );
100  Void  xReadUnaryMaxSymbol ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol );
101  Void  xReadEpExGolomb     ( UInt& ruiSymbol, UInt uiCount );
102  Void  xReadCoefRemainExGolomb ( UInt &rSymbol, UInt &rParam );
103#if H_3D_DIM
104  Void  xReadExGolombLevel   ( UInt& ruiSymbol, ContextModel& rcSCModel  );
105  Void  xParseDimDeltaDC     ( Pel& rValDeltaDC, UInt uiNumSeg );
106#if H_3D_DIM_DMM
107  Void  xParseDmm1WedgeIdx   ( UInt& ruiTabIdx, Int iNumBit );
108#endif
109#if H_3D_DIM_SDC
110  Void  xParseSDCResidualData     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPart );
111#endif
112#endif
113#if H_3D_INTER_SDC
114  Void  parseDeltaDC         ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
115  Void  parseSDCFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
116#endif
117#if H_3D_DBBP
118  Void parseDBBPFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
119#endif
120private:
121  TComInputBitstream* m_pcBitstream;
122  TDecBinIf*        m_pcTDecBinIf;
123 
124public:
125 
126  Void parseSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
127#if H_3D
128  Void parseDIS          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
129#endif
130  Void parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
131  Void parseSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
132  Void parseMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
133  Void parseMergeIndex    ( TComDataCU* pcCU, UInt& ruiMergeIndex );
134#if H_3D_ARP
135  Void parseARPW          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
136#endif
137#if H_3D_IC
138  Void parseICFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
139#endif
140  Void parsePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
141  Void parsePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
142 
143  Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
144 
145  Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
146 
147#if H_3D_DIM
148  Void parseIntraDepth     ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
149  Void parseIntraDepthMode ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
150#endif
151
152  Void parseInterDir      ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx );
153  Void parseRefFrmIdx     ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList );
154  Void parseMvd           ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList );
155 
156  Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize );
157  Void parseQtCbf         ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth );
158  Void parseQtRootCbf     ( UInt uiAbsPartIdx, UInt& uiQtRootCbf );
159 
160  Void parseDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
161 
162  Void parseIPCMInfo      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth);
163
164  Void parseLastSignificantXY( UInt& uiPosLastX, UInt& uiPosLastY, Int width, Int height, TextType eTType, UInt uiScanIdx );
165  Void parseCoeffNxN      ( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType );
166  Void parseTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType);
167
168  Void updateContextTables( SliceType eSliceType, Int iQp );
169
170  Void  parseScalingList ( TComScalingList* /*scalingList*/ ) {}
171
172private:
173  UInt m_uiLastDQpNonZero;
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#if H_3D
181  ContextModel3DBuffer m_cCUDISFlagSCModel;
182  ContextModel3DBuffer m_cCUDISTypeSCModel;
183#endif
184  ContextModel3DBuffer m_cCUMergeFlagExtSCModel;
185  ContextModel3DBuffer m_cCUMergeIdxExtSCModel;
186#if H_3D_ARP
187  ContextModel3DBuffer m_cCUPUARPWSCModel;
188#endif
189#if H_3D_IC
190  ContextModel3DBuffer m_cCUICFlagSCModel;
191#endif
192  ContextModel3DBuffer m_cCUPartSizeSCModel;
193  ContextModel3DBuffer m_cCUPredModeSCModel;
194  ContextModel3DBuffer m_cCUIntraPredSCModel;
195  ContextModel3DBuffer m_cCUChromaPredSCModel;
196  ContextModel3DBuffer m_cCUDeltaQpSCModel;
197  ContextModel3DBuffer m_cCUInterDirSCModel;
198  ContextModel3DBuffer m_cCURefPicSCModel;
199  ContextModel3DBuffer m_cCUMvdSCModel;
200  ContextModel3DBuffer m_cCUQtCbfSCModel;
201  ContextModel3DBuffer m_cCUTransSubdivFlagSCModel;
202  ContextModel3DBuffer m_cCUQtRootCbfSCModel;
203 
204  ContextModel3DBuffer m_cCUSigCoeffGroupSCModel;
205  ContextModel3DBuffer m_cCUSigSCModel;
206  ContextModel3DBuffer m_cCuCtxLastX;
207  ContextModel3DBuffer m_cCuCtxLastY;
208  ContextModel3DBuffer m_cCUOneSCModel;
209  ContextModel3DBuffer m_cCUAbsSCModel;
210 
211  ContextModel3DBuffer m_cMVPIdxSCModel;
212 
213  ContextModel3DBuffer m_cSaoMergeSCModel;
214  ContextModel3DBuffer m_cSaoTypeIdxSCModel;
215  ContextModel3DBuffer m_cTransformSkipSCModel;
216  ContextModel3DBuffer m_CUTransquantBypassFlagSCModel;
217
218#if H_3D_DIM
219  ContextModel3DBuffer m_cDepthIntraModeSCModel;
220  ContextModel3DBuffer m_cDdcFlagSCModel;
221  ContextModel3DBuffer m_cDdcDataSCModel;
222  ContextModel3DBuffer m_cAngleFlagSCModel;
223#if H_3D_DIM_SDC 
224  ContextModel3DBuffer m_cSDCResidualFlagSCModel;
225  ContextModel3DBuffer m_cSDCResidualSCModel;
226#endif
227#endif
228#if H_3D_DIM_SDC 
229  ContextModel3DBuffer m_cSDCFlagSCModel;
230#endif
231#if H_3D_DBBP
232  ContextModel3DBuffer m_cDBBPFlagSCModel;
233#endif
234};
235
236//! \}
237
238#endif // !defined(AFX_TDECSBAC_H__CFCAAA19_8110_47F4_9A16_810C4B5499D5__INCLUDED_)
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