source: 3DVCSoftware/trunk/source/Lib/TLibDecoder/TDecEntropy.h @ 1413

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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
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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/** \file     TDecEntropy.h
35    \brief    entropy decoder class (header)
36*/
37
38#ifndef __TDECENTROPY__
39#define __TDECENTROPY__
40#include "TLibCommon/CommonDef.h"
41#include "TLibCommon/TComBitStream.h"
42#include "TLibCommon/TComSlice.h"
43#include "TLibCommon/TComPic.h"
44#include "TLibCommon/TComSampleAdaptiveOffset.h"
45#include "TLibCommon/TComRectangle.h"
46#include "TDecConformance.h"
47
48class TDecSbac;
49class TDecCavlc;
50class ParameterSetManagerDecoder;
51class TComPrediction;
52
53//! \ingroup TLibDecoder
54//! \{
55
56// ====================================================================================================================
57// Class definition
58// ====================================================================================================================
59
60/// entropy decoder pure class
61class TDecEntropyIf
62{
63public:
64  //  Virtual list for SBAC/CAVLC
65  virtual Void  resetEntropy          ( TComSlice* pcSlice )     = 0;
66  virtual Void  setBitstream          ( TComInputBitstream* p )  = 0;
67
68  virtual Void  parseVPS                  ( TComVPS* pcVPS )     = 0;
69  virtual Void  parseSPS                  ( TComSPS* pcSPS )     = 0;
70  virtual Void  parsePPS                  ( TComPPS* pcPPS )     = 0;
71#if NH_MV
72  virtual Void  parseFirstSliceSegmentInPicFlag( TComSlice* pcSlice ) = 0;
73  virtual Void  parseSliceHeader          ( TComSlice* pcSlice, ParameterSetManager *parameterSetManager )       = 0;
74#else
75  virtual Void  parseSliceHeader          ( TComSlice* pcSlice, ParameterSetManager *parameterSetManager, const Int prevTid0POC)       = 0;
76#endif
77
78  virtual Void parseTerminatingBit       ( UInt& ruilsLast )                                     = 0;
79  virtual Void parseRemainingBytes( Bool noTrailingBytesExpected ) = 0;
80
81  virtual Void parseMVPIdx        ( Int& riMVPIdx ) = 0;
82
83public:
84  virtual Void parseSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
85#if NH_3D
86  virtual Void parseDIS           ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
87#endif
88  virtual Void parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
89  virtual Void parseSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
90  virtual Void parseMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx ) = 0;
91  virtual Void parseMergeIndex    ( TComDataCU* pcCU, UInt& ruiMergeIndex ) = 0;
92#if NH_3D
93  virtual Void parseARPW          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
94  virtual Void parseICFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
95  virtual Void  parseDeltaDC      ( TComDataCU* pcCU, UInt absPartIdx, UInt depth ) = 0;
96  virtual Void parseSDCFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
97  virtual Void parseDBBPFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
98#endif
99  virtual Void parsePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
100  virtual Void parsePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
101
102  virtual Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
103  virtual Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
104
105  virtual Void parseInterDir      ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx ) = 0;
106  virtual Void parseRefFrmIdx     ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList ) = 0;
107  virtual Void parseMvd           ( TComDataCU* pcCU, UInt uiAbsPartAddr, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList ) = 0;
108
109  virtual Void parseCrossComponentPrediction ( class TComTU &rTu, ComponentID compID ) = 0;
110
111  virtual Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize ) = 0;
112  virtual Void parseQtCbf         ( TComTU &rTu, const ComponentID compID, const Bool lowestLevel ) = 0;
113  virtual Void parseQtRootCbf     ( UInt uiAbsPartIdx, UInt& uiQtRootCbf ) = 0;
114
115  virtual Void parseDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
116  virtual Void parseChromaQpAdjustment( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
117
118  virtual Void parseIPCMInfo     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth) = 0;
119
120  virtual Void parseCoeffNxN( class TComTU &rTu, ComponentID compID  ) = 0;
121
122  virtual Void parseTransformSkipFlags ( class TComTU &rTu, ComponentID component ) = 0;
123
124  virtual Void parseExplicitRdpcmMode ( TComTU &rTu, ComponentID compID ) = 0;
125
126  virtual ~TDecEntropyIf() {}
127};
128
129/// entropy decoder class
130class TDecEntropy
131{
132private:
133  TDecEntropyIf*  m_pcEntropyDecoderIf;
134  TComPrediction* m_pcPrediction;
135#if MCTS_ENC_CHECK
136  TDecConformanceCheck* m_pConformanceCheck;
137#endif
138  //UInt    m_uiBakAbsPartIdx;
139  //UInt    m_uiBakChromaOffset;
140  //UInt    m_bakAbsPartIdxCU;
141
142public:
143#if MCTS_ENC_CHECK
144    Void init (TComPrediction* p, TDecConformanceCheck* pConformanceCheck) {m_pcPrediction = p; m_pConformanceCheck=pConformanceCheck;}
145#else
146  Void init (TComPrediction* p) {m_pcPrediction = p;}
147#endif
148  Void decodePUWise       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
149  Void decodeInterDirPU   ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx );
150  Void decodeRefFrmIdxPU  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
151  Void decodeMvdPU        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
152  Void decodeMVPIdxPU     ( TComDataCU* pcSubCU, UInt uiPartAddr, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
153#if NH_3D
154  Void decodeMvsAMVP      ( TComDataCU* pcSubCU, UInt uiPartAddr, UInt uiDepth, UInt uiPartIdx, 
155RefPicList eRefList );
156#endif
157  Void    setEntropyDecoder           ( TDecEntropyIf* p );
158  Void    setBitstream                ( TComInputBitstream* p ) { m_pcEntropyDecoderIf->setBitstream(p);                    }
159  Void    resetEntropy                ( TComSlice* p)           { m_pcEntropyDecoderIf->resetEntropy(p);                    }
160
161  Void    decodeVPS                   ( TComVPS* pcVPS ) { m_pcEntropyDecoderIf->parseVPS(pcVPS); }
162  Void    decodeSPS                   ( TComSPS* pcSPS ) { m_pcEntropyDecoderIf->parseSPS(pcSPS); }
163  Void    decodePPS                   ( TComPPS* pcPPS ) { m_pcEntropyDecoderIf->parsePPS(pcPPS); }
164#if NH_MV
165  Void    decodeFirstSliceSegmentInPicFlag ( TComSlice* pcSlice )  { m_pcEntropyDecoderIf->parseFirstSliceSegmentInPicFlag( pcSlice );         }
166#endif
167#if NH_MV
168  Void    decodeSliceHeader           ( TComSlice* pcSlice, ParameterSetManager *parameterSetManager )  { m_pcEntropyDecoderIf->parseSliceHeader(pcSlice, parameterSetManager);         }
169#else
170  Void    decodeSliceHeader           ( TComSlice* pcSlice, ParameterSetManager *parameterSetManager, const Int prevTid0POC)  { m_pcEntropyDecoderIf->parseSliceHeader(pcSlice, parameterSetManager, prevTid0POC);         }
171#endif
172  Void    decodeTerminatingBit        ( UInt& ruiIsLast )       { m_pcEntropyDecoderIf->parseTerminatingBit(ruiIsLast);     }
173  Void    decodeRemainingBytes( Bool noTrailingBytesExpected ) { m_pcEntropyDecoderIf->parseRemainingBytes(noTrailingBytesExpected); }
174
175  TDecEntropyIf* getEntropyDecoder() { return m_pcEntropyDecoderIf; }
176
177public:
178  Void decodeSplitFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
179  Void decodeSkipFlag          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
180#if NH_3D
181  Void decodeDIS               ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) ;
182#endif
183  Void decodeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
184  Void decodeMergeFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
185  Void decodeMergeIndex        ( TComDataCU* pcSubCU, UInt uiPartIdx, UInt uiPartAddr, UInt uiDepth );
186  Void decodePredMode          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
187  Void decodePartSize          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
188
189#if NH_3D
190  Void decodeARPW              ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
191  Void decodeICFlag            ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
192  Void decodeSDCFlag           ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
193  Void decodeDBBPFlag          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
194#endif
195  Void decodeIPCMInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
196
197  Void decodePredInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
198
199  Void decodeIntraDirModeLuma  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
200  Void decodeIntraDirModeChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
201
202  Void decodeQP                ( TComDataCU* pcCU, UInt uiAbsPartIdx );
203  Void decodeChromaQpAdjustment( TComDataCU* pcCU, UInt uiAbsPartIdx );
204
205private:
206
207  Void xDecodeTransform        ( Bool& bCodeDQP, Bool& isChromaQpAdjCoded, TComTU &rTu, const Int quadtreeTULog2MinSizeInCU );
208
209public:
210
211  Void decodeCoeff             ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, Bool& bCodeDQP, Bool& isChromaQpAdjCoded );
212
213};// END CLASS DEFINITION TDecEntropy
214
215//! \}
216
217#endif // __TDECENTROPY__
218
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