source: 3DVCSoftware/branches/HTM-9.3-dev3-Qualcomm/source/Lib/TLibDecoder/TDecSbac.h

Last change on this file was 782, checked in by qualcomm, 10 years ago

integration of JCT3V-G0130 (unify signaling and delta DC coding in intra SDC and inter SDC) by Qualcomm
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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) 2010-2013, 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     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#if H_3D
79  Void  parseSPS                  ( TComSPS* /*pcSPS*/ , Int /*viewIndex*/, Bool /*depthFlag*/ ) {}
80#else
81  Void  parseSPS                  ( TComSPS* /*pcSPS*/ ) {}
82#endif
83#if H_3D
84  Void  parsePPS                  ( TComPPS* /*pcPPS*/, TComVPS* /*pcVPS*/ ) {}
85#else
86  Void  parsePPS                  ( TComPPS* /*pcPPS*/ ) {}
87#endif
88
89  Void  parseSliceHeader          ( TComSlice*& /*rpcSlice*/, ParameterSetManagerDecoder* /*parameterSetManager*/) {}
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  parseSaoOneLcuInterleaving(Int rx, Int ry, SAOParam* pSaoParam, TComDataCU* pcCU, Int iCUAddrInSlice, Int iCUAddrUpInSlice, Int allowMergeLeft, Int allowMergeUp);
97  Void  parseSaoOffset            (SaoLcuParam* psSaoLcuParam, UInt compIdx);
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#if QC_SDC_UNIFY_G0130
115  Void  parseDeltaDC         ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
116  Void  parseSDCFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
117#else
118  Void  parseInterSDCFlag    ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
119  Void  parseInterSDCResidualData ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPart );
120#endif
121#endif
122private:
123  TComInputBitstream* m_pcBitstream;
124  TDecBinIf*        m_pcTDecBinIf;
125 
126public:
127 
128  Void parseSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
129  Void parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
130  Void parseSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
131  Void parseMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
132  Void parseMergeIndex    ( TComDataCU* pcCU, UInt& ruiMergeIndex );
133#if H_3D_ARP
134  Void parseARPW          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
135#endif
136#if H_3D_IC
137  Void parseICFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
138#endif
139  Void parsePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
140  Void parsePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
141 
142  Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
143 
144  Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
145 
146#if H_3D_DIM
147  Void parseIntraDepth     ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
148  Void parseIntraDepthMode ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
149#endif
150
151  Void parseInterDir      ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx );
152  Void parseRefFrmIdx     ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList );
153  Void parseMvd           ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList );
154 
155  Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize );
156  Void parseQtCbf         ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth );
157  Void parseQtRootCbf     ( UInt uiAbsPartIdx, UInt& uiQtRootCbf );
158 
159  Void parseDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
160 
161  Void parseIPCMInfo      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth);
162
163  Void parseLastSignificantXY( UInt& uiPosLastX, UInt& uiPosLastY, Int width, Int height, TextType eTType, UInt uiScanIdx );
164  Void parseCoeffNxN      ( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType );
165  Void parseTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType);
166
167  Void updateContextTables( SliceType eSliceType, Int iQp );
168
169  Void  parseScalingList ( TComScalingList* /*scalingList*/ ) {}
170
171private:
172  UInt m_uiLastDQpNonZero;
173  UInt m_uiLastQp;
174 
175  ContextModel         m_contextModels[MAX_NUM_CTX_MOD];
176  Int                  m_numContextModels;
177  ContextModel3DBuffer m_cCUSplitFlagSCModel;
178  ContextModel3DBuffer m_cCUSkipFlagSCModel;
179  ContextModel3DBuffer m_cCUMergeFlagExtSCModel;
180  ContextModel3DBuffer m_cCUMergeIdxExtSCModel;
181#if H_3D_ARP
182  ContextModel3DBuffer m_cCUPUARPWSCModel;
183#endif
184#if H_3D_IC
185  ContextModel3DBuffer m_cCUICFlagSCModel;
186#endif
187  ContextModel3DBuffer m_cCUPartSizeSCModel;
188  ContextModel3DBuffer m_cCUPredModeSCModel;
189  ContextModel3DBuffer m_cCUIntraPredSCModel;
190  ContextModel3DBuffer m_cCUChromaPredSCModel;
191  ContextModel3DBuffer m_cCUDeltaQpSCModel;
192  ContextModel3DBuffer m_cCUInterDirSCModel;
193  ContextModel3DBuffer m_cCURefPicSCModel;
194  ContextModel3DBuffer m_cCUMvdSCModel;
195  ContextModel3DBuffer m_cCUQtCbfSCModel;
196  ContextModel3DBuffer m_cCUTransSubdivFlagSCModel;
197  ContextModel3DBuffer m_cCUQtRootCbfSCModel;
198 
199  ContextModel3DBuffer m_cCUSigCoeffGroupSCModel;
200  ContextModel3DBuffer m_cCUSigSCModel;
201  ContextModel3DBuffer m_cCuCtxLastX;
202  ContextModel3DBuffer m_cCuCtxLastY;
203  ContextModel3DBuffer m_cCUOneSCModel;
204  ContextModel3DBuffer m_cCUAbsSCModel;
205 
206  ContextModel3DBuffer m_cMVPIdxSCModel;
207 
208  ContextModel3DBuffer m_cCUAMPSCModel;
209  ContextModel3DBuffer m_cSaoMergeSCModel;
210  ContextModel3DBuffer m_cSaoTypeIdxSCModel;
211  ContextModel3DBuffer m_cTransformSkipSCModel;
212  ContextModel3DBuffer m_CUTransquantBypassFlagSCModel;
213
214#if H_3D_DIM
215  ContextModel3DBuffer m_cDepthIntraModeSCModel;
216  ContextModel3DBuffer m_cDdcFlagSCModel;
217  ContextModel3DBuffer m_cDdcDataSCModel;
218#if QC_GENERIC_SDC_G0122
219  ContextModel3DBuffer m_cAngleFlagSCModel;
220#if !QC_SDC_UNIFY_G0130
221  ContextModel3DBuffer m_cIntraSdcFlagSCModel;
222#endif
223#endif
224#if H_3D_DIM_DMM
225  ContextModel3DBuffer m_cDmm1DataSCModel;
226#endif
227#if H_3D_DIM_SDC 
228  ContextModel3DBuffer m_cSDCResidualFlagSCModel;
229  ContextModel3DBuffer m_cSDCResidualSCModel;
230#endif
231#endif
232#if H_3D_INTER_SDC && !QC_SDC_UNIFY_G0130
233  ContextModel3DBuffer m_cInterSDCFlagSCModel;
234  ContextModel3DBuffer m_cInterSDCResidualSCModel;
235  ContextModel3DBuffer m_cInterSDCResidualSignFlagSCModel;
236#endif
237#if QC_SDC_UNIFY_G0130
238  ContextModel3DBuffer m_cSDCFlagSCModel;
239#endif
240};
241
242//! \}
243
244#endif // !defined(AFX_TDECSBAC_H__CFCAAA19_8110_47F4_9A16_810C4B5499D5__INCLUDED_)
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