source: 3DVCSoftware/trunk/source/Lib/TLibDecoder/TDecSbac.h @ 1084

Last change on this file since 1084 was 1084, checked in by tech, 10 years ago

Merged branches/HTM-12.1-dev0@1083.

  • Property svn:eol-style set to native
File size: 9.8 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) 2010-2014, 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#if H_MV
90  Void  parseSliceHeader          ( TComSlice*& /*rpcSlice*/, ParameterSetManagerDecoder* /*parameterSetManager*/, Int targetOlsIdx ) {}
91#else
92  Void  parseSliceHeader          ( TComSlice*& /*rpcSlice*/, ParameterSetManagerDecoder* /*parameterSetManager*/ ) {}
93#endif
94  Void  parseTerminatingBit       ( UInt& ruiBit );
95  Void  parseMVPIdx               ( Int& riMVPIdx          );
96  Void  parseSaoMaxUvlc           ( UInt& val, UInt maxSymbol );
97  Void  parseSaoMerge         ( UInt&  ruiVal   );
98  Void  parseSaoTypeIdx           ( UInt&  ruiVal  );
99  Void  parseSaoUflc              ( UInt uiLength, UInt& ruiVal     );
100  Void parseSAOBlkParam (SAOBlkParam& saoBlkParam, Bool* sliceEnabled, Bool leftMergeAvail, Bool aboveMergeAvail);
101  Void parseSaoSign(UInt& val);
102private:
103  Void  xReadUnarySymbol    ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset );
104  Void  xReadUnaryMaxSymbol ( UInt& ruiSymbol, ContextModel* pcSCModel, Int iOffset, UInt uiMaxSymbol );
105  Void  xReadEpExGolomb     ( UInt& ruiSymbol, UInt uiCount );
106  Void  xReadCoefRemainExGolomb ( UInt &rSymbol, UInt &rParam );
107#if H_3D_DIM
108  Void  xReadExGolombLevel   ( UInt& ruiSymbol, ContextModel& rcSCModel  );
109  Void  xParseDimDeltaDC     ( Pel& rValDeltaDC, UInt uiNumSeg );
110#if H_3D_DIM_DMM
111  Void  xParseDmm1WedgeIdx   ( UInt& ruiTabIdx, Int iNumBit );
112#endif
113#if H_3D_DIM_SDC
114  Void  xParseSDCResidualData     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPart );
115#endif
116#endif
117#if H_3D_INTER_SDC
118  Void  parseDeltaDC         ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
119  Void  parseSDCFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
120#endif
121#if H_3D_DBBP
122  Void parseDBBPFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
123#endif
124private:
125  TComInputBitstream* m_pcBitstream;
126  TDecBinIf*        m_pcTDecBinIf;
127 
128public:
129 
130  Void parseSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
131#if H_3D_SINGLE_DEPTH 
132  Void parseSingleDepthMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
133#endif 
134  Void parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
135  Void parseSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
136  Void parseMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
137  Void parseMergeIndex    ( TComDataCU* pcCU, UInt& ruiMergeIndex );
138#if H_3D_ARP
139  Void parseARPW          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
140#endif
141#if H_3D_IC
142  Void parseICFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
143#endif
144  Void parsePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
145  Void parsePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
146 
147  Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
148 
149  Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
150 
151#if H_3D_DIM
152  Void parseIntraDepth     ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
153  Void parseIntraDepthMode ( TComDataCU* pcCU, UInt absPartIdx, UInt depth );
154#endif
155
156  Void parseInterDir      ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx );
157  Void parseRefFrmIdx     ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList );
158  Void parseMvd           ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList );
159 
160  Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize );
161  Void parseQtCbf         ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth );
162  Void parseQtRootCbf     ( UInt uiAbsPartIdx, UInt& uiQtRootCbf );
163 
164  Void parseDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
165 
166  Void parseIPCMInfo      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth);
167
168  Void parseLastSignificantXY( UInt& uiPosLastX, UInt& uiPosLastY, Int width, Int height, TextType eTType, UInt uiScanIdx );
169  Void parseCoeffNxN      ( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType );
170  Void parseTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType);
171
172  Void updateContextTables( SliceType eSliceType, Int iQp );
173
174  Void  parseScalingList ( TComScalingList* /*scalingList*/ ) {}
175
176private:
177  UInt m_uiLastDQpNonZero;
178  UInt m_uiLastQp;
179 
180  ContextModel         m_contextModels[MAX_NUM_CTX_MOD];
181  Int                  m_numContextModels;
182  ContextModel3DBuffer m_cCUSplitFlagSCModel;
183  ContextModel3DBuffer m_cCUSkipFlagSCModel;
184#if H_3D_SINGLE_DEPTH
185  ContextModel3DBuffer m_cCUSingleDepthFlagSCModel;
186  ContextModel3DBuffer m_cSingleDepthValueSCModel;
187#endif
188  ContextModel3DBuffer m_cCUMergeFlagExtSCModel;
189  ContextModel3DBuffer m_cCUMergeIdxExtSCModel;
190#if H_3D_ARP
191  ContextModel3DBuffer m_cCUPUARPWSCModel;
192#endif
193#if H_3D_IC
194  ContextModel3DBuffer m_cCUICFlagSCModel;
195#endif
196  ContextModel3DBuffer m_cCUPartSizeSCModel;
197  ContextModel3DBuffer m_cCUPredModeSCModel;
198  ContextModel3DBuffer m_cCUIntraPredSCModel;
199  ContextModel3DBuffer m_cCUChromaPredSCModel;
200  ContextModel3DBuffer m_cCUDeltaQpSCModel;
201  ContextModel3DBuffer m_cCUInterDirSCModel;
202  ContextModel3DBuffer m_cCURefPicSCModel;
203  ContextModel3DBuffer m_cCUMvdSCModel;
204  ContextModel3DBuffer m_cCUQtCbfSCModel;
205  ContextModel3DBuffer m_cCUTransSubdivFlagSCModel;
206  ContextModel3DBuffer m_cCUQtRootCbfSCModel;
207 
208  ContextModel3DBuffer m_cCUSigCoeffGroupSCModel;
209  ContextModel3DBuffer m_cCUSigSCModel;
210  ContextModel3DBuffer m_cCuCtxLastX;
211  ContextModel3DBuffer m_cCuCtxLastY;
212  ContextModel3DBuffer m_cCUOneSCModel;
213  ContextModel3DBuffer m_cCUAbsSCModel;
214 
215  ContextModel3DBuffer m_cMVPIdxSCModel;
216 
217  ContextModel3DBuffer m_cSaoMergeSCModel;
218  ContextModel3DBuffer m_cSaoTypeIdxSCModel;
219  ContextModel3DBuffer m_cTransformSkipSCModel;
220  ContextModel3DBuffer m_CUTransquantBypassFlagSCModel;
221
222#if H_3D_DIM
223  ContextModel3DBuffer m_cDepthIntraModeSCModel;
224  ContextModel3DBuffer m_cDdcFlagSCModel;
225  ContextModel3DBuffer m_cDdcDataSCModel;
226  ContextModel3DBuffer m_cAngleFlagSCModel;
227#if H_3D_DIM_SDC 
228  ContextModel3DBuffer m_cSDCResidualFlagSCModel;
229  ContextModel3DBuffer m_cSDCResidualSCModel;
230#endif
231#endif
232#if H_3D_DIM_SDC 
233  ContextModel3DBuffer m_cSDCFlagSCModel;
234#endif
235#if H_3D_DBBP
236  ContextModel3DBuffer m_cDBBPFlagSCModel;
237#endif
238};
239
240//! \}
241
242#endif // !defined(AFX_TDECSBAC_H__CFCAAA19_8110_47F4_9A16_810C4B5499D5__INCLUDED_)
Note: See TracBrowser for help on using the repository browser.