source: 3DVCSoftware/branches/HTM-DEV-2.0-dev0/source/Lib/TLibDecoder/TDecEntropy.h @ 1417

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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     TDecEntropy.h
35    \brief    entropy decoder class (header)
36*/
37
38#ifndef __TDECENTROPY__
39#define __TDECENTROPY__
40
41#include "../TLibCommon/CommonDef.h"
42#include "../TLibCommon/TComBitStream.h"
43#include "../TLibCommon/TComSlice.h"
44#include "../TLibCommon/TComPic.h"
45#include "../TLibCommon/TComPrediction.h"
46#include "../TLibCommon/TComSampleAdaptiveOffset.h"
47
48class TDecSbac;
49class TDecCavlc;
50class ParameterSetManagerDecoder;
51
52//! \ingroup TLibDecoder
53//! \{
54
55// ====================================================================================================================
56// Class definition
57// ====================================================================================================================
58
59/// entropy decoder pure class
60class TDecEntropyIf
61{
62public:
63  //  Virtual list for SBAC/CAVLC
64  virtual Void  resetEntropy          ( TComSlice* pcSlice )     = 0;
65  virtual Void  setBitstream          ( TComInputBitstream* p )  = 0;
66
67  virtual Void  parseVPS                  ( TComVPS* pcVPS )                       = 0;
68#if H_3D
69  virtual Void  parseSPS                  ( TComSPS* pcSPS, Int viewIndex, Bool depthFlag  )         = 0;
70#else
71  virtual Void  parseSPS                  ( TComSPS* pcSPS )                                      = 0;
72#endif
73  virtual Void  parsePPS                  ( TComPPS* pcPPS )                                      = 0;
74
75  virtual Void parseSliceHeader          ( TComSlice*& rpcSlice, ParameterSetManagerDecoder *parameterSetManager)       = 0;
76
77  virtual Void  parseTerminatingBit       ( UInt& ruilsLast )                                     = 0;
78 
79  virtual Void parseMVPIdx        ( Int& riMVPIdx ) = 0;
80 
81public:
82  virtual Void parseSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
83  virtual Void parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
84  virtual Void parseSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
85  virtual Void parseMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx ) = 0;
86  virtual Void parseMergeIndex    ( TComDataCU* pcCU, UInt& ruiMergeIndex ) = 0;
87#if H_3D_ARP
88  virtual Void parseARPW          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
89#endif
90#if H_3D_IC
91  virtual Void parseICFlag        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
92#endif
93#if LGE_INTER_SDC_E0156
94  virtual Void parseInterSDCFlag  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
95  virtual Void parseInterSDCResidualData ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPart ) = 0;
96#endif
97  virtual Void parsePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
98  virtual Void parsePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
99 
100  virtual Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
101 
102  virtual Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
103 
104  virtual Void parseInterDir      ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx ) = 0;
105  virtual Void parseRefFrmIdx     ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList ) = 0;
106  virtual Void parseMvd           ( TComDataCU* pcCU, UInt uiAbsPartAddr, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList ) = 0;
107 
108  virtual Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize ) = 0;
109  virtual Void parseQtCbf         ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth ) = 0;
110  virtual Void parseQtRootCbf     ( UInt uiAbsPartIdx, UInt& uiQtRootCbf ) = 0;
111 
112  virtual Void parseDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
113 
114  virtual Void parseIPCMInfo     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth) = 0;
115
116  virtual Void parseCoeffNxN( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType ) = 0;
117  virtual Void parseTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType) = 0;
118  virtual Void updateContextTables( SliceType eSliceType, Int iQp ) = 0;
119 
120  virtual ~TDecEntropyIf() {}
121};
122
123/// entropy decoder class
124class TDecEntropy
125{
126private:
127  TDecEntropyIf*  m_pcEntropyDecoderIf;
128  TComPrediction* m_pcPrediction;
129  UInt    m_uiBakAbsPartIdx;
130  UInt    m_uiBakChromaOffset;
131  UInt    m_bakAbsPartIdxCU;
132 
133public:
134  Void init (TComPrediction* p) {m_pcPrediction = p;}
135  Void decodePUWise       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
136  Void decodeInterDirPU   ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx );
137  Void decodeRefFrmIdxPU  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
138  Void decodeMvdPU        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
139  Void decodeMVPIdxPU     ( TComDataCU* pcSubCU, UInt uiPartAddr, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
140 
141  Void    setEntropyDecoder           ( TDecEntropyIf* p );
142  Void    setBitstream                ( TComInputBitstream* p ) { m_pcEntropyDecoderIf->setBitstream(p);                    }
143  Void    resetEntropy                ( TComSlice* p)           { m_pcEntropyDecoderIf->resetEntropy(p);                    }
144  Void    decodeVPS                   ( TComVPS* pcVPS ) { m_pcEntropyDecoderIf->parseVPS(pcVPS); }
145#if H_3D
146  Void    decodeSPS                   ( TComSPS* pcSPS, Int viewIndex, Bool depthFlag )    { m_pcEntropyDecoderIf->parseSPS(pcSPS, viewIndex, depthFlag );                    }
147#else
148  Void    decodeSPS                   ( TComSPS* pcSPS     )    { m_pcEntropyDecoderIf->parseSPS(pcSPS);                    }
149#endif
150  Void    decodePPS                   ( TComPPS* pcPPS )    { m_pcEntropyDecoderIf->parsePPS(pcPPS);                    }
151  Void    decodeSliceHeader           ( TComSlice*& rpcSlice, ParameterSetManagerDecoder *parameterSetManager)  { m_pcEntropyDecoderIf->parseSliceHeader(rpcSlice, parameterSetManager);         }
152
153  Void    decodeTerminatingBit        ( UInt& ruiIsLast )       { m_pcEntropyDecoderIf->parseTerminatingBit(ruiIsLast);     }
154 
155  TDecEntropyIf* getEntropyDecoder() { return m_pcEntropyDecoderIf; }
156 
157public:
158  Void decodeSplitFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
159  Void decodeSkipFlag          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
160  Void decodeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
161  Void decodeMergeFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
162  Void decodeMergeIndex        ( TComDataCU* pcSubCU, UInt uiPartIdx, UInt uiPartAddr, UInt uiDepth );
163  Void decodePredMode          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
164  Void decodePartSize          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
165 
166#if H_3D_ARP
167  Void decodeARPW              ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
168#endif
169#if H_3D_IC
170  Void decodeICFlag            ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
171#endif
172#if LGE_INTER_SDC_E0156
173  Void decodeInterSDCFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
174  Void decodeInterSDCResidualData ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
175#endif
176  Void decodeIPCMInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
177
178  Void decodePredInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
179 
180  Void decodeIntraDirModeLuma  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
181  Void decodeIntraDirModeChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
182 
183  Void decodeQP                ( TComDataCU* pcCU, UInt uiAbsPartIdx );
184 
185  Void updateContextTables    ( SliceType eSliceType, Int iQp ) { m_pcEntropyDecoderIf->updateContextTables( eSliceType, iQp ); }
186 
187 
188private:
189  Void xDecodeTransform        ( TComDataCU* pcCU, UInt offsetLuma, UInt offsetChroma, UInt uiAbsPartIdx, UInt uiDepth, UInt width, UInt height, UInt uiTrIdx, Bool& bCodeDQP );
190
191public:
192  Void decodeCoeff             ( TComDataCU* pcCU                 , UInt uiAbsPartIdx, UInt uiDepth, UInt uiWidth, UInt uiHeight, Bool& bCodeDQP );
193 
194};// END CLASS DEFINITION TDecEntropy
195
196//! \}
197
198#endif // __TDECENTROPY__
199
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