source: 3DVCSoftware/trunk/source/Lib/TLibDecoder/TDecEntropy.h @ 42

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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) 2010-2011, 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 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"
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23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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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
35
36/** \file     TDecEntropy.h
37    \brief    entropy decoder class (header)
38*/
39
40#ifndef __TDECENTROPY__
41#define __TDECENTROPY__
42
43#include "../TLibCommon/CommonDef.h"
44#include "../TLibCommon/TComBitStream.h"
45#include "../TLibCommon/TComSlice.h"
46#include "../TLibCommon/TComPic.h"
47#include "../TLibCommon/TComPrediction.h"
48#include "../TLibCommon/TComAdaptiveLoopFilter.h"
49
50class TDecSbac;
51class TDecCavlc;
52class SEImessages;
53
54// ====================================================================================================================
55// Class definition
56// ====================================================================================================================
57
58/// entropy decoder pure class
59class TDecEntropyIf
60{
61public:
62  //  Virtual list for SBAC/CAVLC
63  virtual Void setAlfCtrl(Bool bAlfCtrl)  = 0;
64  virtual Void setMaxAlfCtrlDepth(UInt uiMaxAlfCtrlDepth)  = 0;
65
66  virtual Void  resetEntropy          (TComSlice* pcSlice)                = 0;
67  virtual Void  setBitstream          ( TComBitstream* p )  = 0;
68
69#if BITSTREAM_EXTRACTION
70  virtual Void  parseNalUnitHeader    ( NalUnitType& eNalUnitType, UInt& TemporalId, UInt& uiLayerId )  = 0;
71#else
72  virtual Void  parseNalUnitHeader    ( NalUnitType& eNalUnitType, UInt& TemporalId, Bool& bOutputFlag )  = 0;
73#endif
74
75  virtual Void  parseSPS                  ( TComSPS* pcSPS )                                      = 0;
76  virtual Void  parsePPS                  ( TComPPS* pcPPS )                                      = 0;
77  virtual void parseSEI(SEImessages&) = 0;
78  virtual Void  parseSliceHeader          ( TComSlice*& rpcSlice )                                = 0;
79  virtual Void  parseTerminatingBit       ( UInt& ruilsLast )                                     = 0;
80
81  virtual Void parseMVPIdx      ( TComDataCU* pcCU, Int& riMVPIdx, Int iMVPNum, UInt uiAbsPartIdx, UInt uiDepth, RefPicList eRefList ) = 0;
82
83public:
84  virtual Void parseSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
85  virtual Void parseSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
86  virtual Void parseMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx ) = 0;
87  virtual Void parseMergeIndex    ( TComDataCU* pcCU, UInt& ruiMergeIndex, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
88  virtual Void parseResPredFlag   ( TComDataCU* pcCU, Bool& rbResPredFlag, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
89  virtual Void parsePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
90  virtual Void parsePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
91
92  virtual Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
93
94  virtual Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
95
96  virtual Void parseInterDir      ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
97  virtual Void parseRefFrmIdx     ( TComDataCU* pcCU, Int& riRefFrmIdx, UInt uiAbsPartIdx, UInt uiDepth, RefPicList eRefList ) = 0;
98  virtual Void parseMvd           ( TComDataCU* pcCU, UInt uiAbsPartAddr, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList ) = 0;
99
100  virtual Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize ) = 0;
101  virtual Void parseQtCbf         ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth ) = 0;
102  virtual Void parseQtRootCbf     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt& uiQtRootCbf ) = 0;
103
104  virtual Void parseDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
105
106  virtual Void parseCbf           ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth ) = 0;
107  virtual Void parseBlockCbf      ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth, UInt uiQPartNum ) = 0;
108#if CAVLC_RQT_CBP
109  virtual Void parseCbfTrdiv      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiTrDepth, UInt uiDepth, UInt& uiSubdiv ) = 0;
110#endif
111
112  virtual Void parseCoeffNxN( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType ) = 0;
113
114  virtual Void parseAlfFlag       ( UInt& ruiVal           ) = 0;
115  virtual Void parseAlfUvlc       ( UInt& ruiVal           ) = 0;
116  virtual Void parseAlfSvlc       ( Int&  riVal            ) = 0;
117  virtual Void parseAlfCtrlDepth  ( UInt& ruiAlfCtrlDepth  ) = 0;
118  virtual Void parseAlfCtrlFlag   ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
119#if TSB_ALF_HEADER
120  virtual Void parseAlfFlagNum    ( UInt& ruiVal, UInt minValue, UInt depth ) = 0;
121  virtual Void parseAlfCtrlFlag   ( UInt &ruiAlfCtrlFlag ) = 0;
122#endif
123
124#if MTK_SAO
125  virtual Void parseAoFlag       ( UInt& ruiVal           ) = 0;
126  virtual Void parseAoUvlc       ( UInt& ruiVal           ) = 0;
127  virtual Void parseAoSvlc       ( Int&  riVal            ) = 0;
128#endif
129  virtual Void parseViewIdx       ( Int& riViewIdx ) = 0;
130  virtual ~TDecEntropyIf() {}
131};
132
133/// entropy decoder class
134class TDecEntropy
135{
136private:
137  TDecEntropyIf*  m_pcEntropyDecoderIf;
138  TComPrediction* m_pcPrediction;
139
140public:
141  Void init (TComPrediction* p) {m_pcPrediction = p;}
142  Void decodeMVPIdx( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, RefPicList eRefList, TComDataCU* pcSubCU );
143  Void decodePUWise       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
144  Void decodeInterDirPU   ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx );
145  Void decodeRefFrmIdxPU  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
146  Void decodeMvdPU        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
147  Void decodeMVPIdxPU     ( TComDataCU* pcSubCU, UInt uiPartAddr, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
148
149  Void    setEntropyDecoder           ( TDecEntropyIf* p );
150  Void    setBitstream                ( TComBitstream* p )      { m_pcEntropyDecoderIf->setBitstream(p);                    }
151  Void    resetEntropy                ( TComSlice* p)           { m_pcEntropyDecoderIf->resetEntropy(p);                    }
152
153#if BITSTREAM_EXTRACTION
154  Void    decodeNalUnitHeader         ( NalUnitType& eNalUnitType, UInt& TemporalId, UInt& uiLayerId )
155                                                                { m_pcEntropyDecoderIf->parseNalUnitHeader( eNalUnitType, TemporalId, uiLayerId ); }
156#else
157  Void    decodeNalUnitHeader         ( NalUnitType& eNalUnitType, UInt& TemporalId, Bool& bOutputFlag )
158                                                                { m_pcEntropyDecoderIf->parseNalUnitHeader(eNalUnitType, TemporalId, bOutputFlag ); }
159#endif
160
161  Void    decodeSPS                   ( TComSPS* pcSPS     )    { m_pcEntropyDecoderIf->parseSPS(pcSPS);                    }
162  Void    decodePPS                   ( TComPPS* pcPPS     )    { m_pcEntropyDecoderIf->parsePPS(pcPPS);                    }
163  void decodeSEI(SEImessages& seis) { m_pcEntropyDecoderIf->parseSEI(seis); }
164  Void    decodeSliceHeader           ( TComSlice*& rpcSlice )  { m_pcEntropyDecoderIf->parseSliceHeader(rpcSlice);         }
165  Void    decodeTerminatingBit        ( UInt& ruiIsLast )       { m_pcEntropyDecoderIf->parseTerminatingBit(ruiIsLast);     }
166
167  // Adaptive Loop filter
168  Void decodeAlfParam(ALFParam* pAlfParam);
169  //--Adaptive Loop filter
170
171  TDecEntropyIf* getEntropyDecoder() { return m_pcEntropyDecoderIf; }
172
173public:
174  Void decodeSplitFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
175  Void decodeSkipFlag          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
176  Void decodeMergeFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
177  Void decodeMergeIndex        ( TComDataCU* pcSubCU, UInt uiPartIdx, UInt uiPartAddr, PartSize eCUMode, UChar* puhInterDirNeighbours, TComMvField* pcMvFieldNeighbours, UInt uiDepth );
178#if HHI_INTER_VIEW_RESIDUAL_PRED
179  Void decodeResPredFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU, UInt uiPUIdx );
180#endif
181  Void decodeAlfCtrlFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
182#if TSB_ALF_HEADER
183  Void decodeAlfCtrlParam      ( ALFParam *pAlfParam );
184#endif
185
186  Void decodePredMode          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
187  Void decodePartSize          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
188
189  Void decodePredInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
190
191  Void decodeIntraDirModeLuma  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
192  Void decodeIntraDirModeChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
193  Void decodeInterDir          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
194  Void decodeRefFrmIdx         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, RefPicList eRefList );
195  Void decodeMvd               ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, RefPicList eRefList );
196  Void decodeRefViewIdx        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, RefPicList eRefList );
197  //
198  Void decodeTransformIdx      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
199  Void decodeQP                ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
200
201  Void decodeViewidx           ( Int& riViewIdx );
202
203
204private:
205  Void xDecodeTransformSubdiv  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiInnerQuadIdx, UInt& uiYCbfFront3, UInt& uiUCbfFront3, UInt& uiVCbfFront3 );
206
207  Void xDecodeCoeff            ( TComDataCU* pcCU, TCoeff* pcCoeff, UInt uiAbsPartIdx, UInt uiDepth, UInt uiWidth, UInt uiHeight, UInt uiTrIdx, UInt uiCurrTrIdx, TextType eType );
208public:
209  Void decodeCoeff             ( TComDataCU* pcCU                 , UInt uiAbsPartIdx, UInt uiDepth, UInt uiWidth, UInt uiHeight );
210
211  // ALF-related
212  Void decodeAux(ALFParam* pAlfParam);
213  Void decodeFilt(ALFParam* pAlfParam);
214  Void readFilterCodingParams(ALFParam* pAlfParam);
215  Void readFilterCoeffs(ALFParam* pAlfParam);
216  Void decodeFilterCoeff (ALFParam* pAlfParam);
217  Int golombDecode(Int k);
218
219#if MTK_SAO
220  Void decodeQAOOnePart(SAOParam* pQaoParam, Int part_idx);
221  Void decodeQuadTreeSplitFlag(SAOParam* pQaoParam, Int part_idx);
222  Void decodeSaoParam(SAOParam* pQaoParam) ;
223#endif
224
225};// END CLASS DEFINITION TDecEntropy
226
227
228#endif // __TDECENTROPY__
229
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