source: SHVCSoftware/branches/SHM-dev/source/Lib/TLibDecoder/TDecEntropy.h @ 1550

Last change on this file since 1550 was 1549, checked in by seregin, 9 years ago

port rev 4732, update copyright notice to include 2016
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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) 2010-2016, 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/TComSampleAdaptiveOffset.h"
46#include "TLibCommon/TComRectangle.h"
47
48class TDecSbac;
49class TDecCavlc;
50class ParameterSetManagerDecoder;
51class TComPrediction;
52#if CGS_3D_ASYMLUT
53class TCom3DAsymLUT;
54#endif
55
56//! \ingroup TLibDecoder
57//! \{
58
59// ====================================================================================================================
60// Class definition
61// ====================================================================================================================
62
63/// entropy decoder pure class
64class TDecEntropyIf
65{
66public:
67  //  Virtual list for SBAC/CAVLC
68  virtual Void  resetEntropy          ( TComSlice* pcSlice )     = 0;
69  virtual Void  setBitstream          ( TComInputBitstream* p )  = 0;
70
71  virtual Void  parseVPS                  ( TComVPS* pcVPS )     = 0;
72  virtual Void  parseSPS                  ( TComSPS* pcSPS )     = 0;
73#if CGS_3D_ASYMLUT
74  virtual Void  parsePPS                  ( TComPPS* pcPPS, TCom3DAsymLUT * pc3DAsymLUT , Int nLayerID )     = 0;
75#else
76  virtual Void  parsePPS                  ( TComPPS* pcPPS )     = 0;
77#endif
78
79  virtual Void parseSliceHeader          ( TComSlice* pcSlice, ParameterSetManager *parameterSetManager, const Int prevTid0POC)       = 0;
80
81  virtual Void parseTerminatingBit       ( UInt& ruilsLast )                                     = 0;
82  virtual Void parseRemainingBytes( Bool noTrailingBytesExpected ) = 0;
83
84  virtual Void parseMVPIdx        ( Int& riMVPIdx ) = 0;
85
86public:
87  virtual Void parseSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
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  virtual Void parsePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
93  virtual Void parsePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
94
95  virtual Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
96  virtual Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
97
98  virtual Void parseInterDir      ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx ) = 0;
99  virtual Void parseRefFrmIdx     ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList ) = 0;
100  virtual Void parseMvd           ( TComDataCU* pcCU, UInt uiAbsPartAddr, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList ) = 0;
101
102  virtual Void parseCrossComponentPrediction ( class TComTU &rTu, ComponentID compID ) = 0;
103
104  virtual Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize ) = 0;
105  virtual Void parseQtCbf         ( TComTU &rTu, const ComponentID compID, const Bool lowestLevel ) = 0;
106  virtual Void parseQtRootCbf     ( UInt uiAbsPartIdx, UInt& uiQtRootCbf ) = 0;
107
108  virtual Void parseDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
109  virtual Void parseChromaQpAdjustment( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
110
111  virtual Void parseIPCMInfo     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth) = 0;
112
113  virtual Void parseCoeffNxN( class TComTU &rTu, ComponentID compID  ) = 0;
114
115  virtual Void parseTransformSkipFlags ( class TComTU &rTu, ComponentID component ) = 0;
116
117  virtual Void parseExplicitRdpcmMode ( TComTU &rTu, ComponentID compID ) = 0;
118
119  virtual ~TDecEntropyIf() {}
120};
121
122/// entropy decoder class
123class TDecEntropy
124{
125private:
126  TDecEntropyIf*  m_pcEntropyDecoderIf;
127  TComPrediction* m_pcPrediction;
128  //UInt    m_uiBakAbsPartIdx;
129  //UInt    m_uiBakChromaOffset;
130  //UInt    m_bakAbsPartIdxCU;
131
132public:
133  Void init (TComPrediction* p) {m_pcPrediction = p;}
134  Void decodePUWise       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
135  Void decodeInterDirPU   ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx );
136  Void decodeRefFrmIdxPU  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
137  Void decodeMvdPU        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
138  Void decodeMVPIdxPU     ( TComDataCU* pcSubCU, UInt uiPartAddr, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
139
140  Void    setEntropyDecoder           ( TDecEntropyIf* p );
141  Void    setBitstream                ( TComInputBitstream* p ) { m_pcEntropyDecoderIf->setBitstream(p);                    }
142  Void    resetEntropy                ( TComSlice* p)           { m_pcEntropyDecoderIf->resetEntropy(p);                    }
143
144  Void    decodeVPS                   ( TComVPS* pcVPS ) { m_pcEntropyDecoderIf->parseVPS(pcVPS); }
145  Void    decodeSPS                   ( TComSPS* pcSPS ) { m_pcEntropyDecoderIf->parseSPS(pcSPS); }
146
147#if CGS_3D_ASYMLUT
148  Void    decodePPS                   ( TComPPS* pcPPS, TCom3DAsymLUT * pc3DAsymLUT, Int nLayerID )    { m_pcEntropyDecoderIf->parsePPS(pcPPS, pc3DAsymLUT , nLayerID );                     }
149#else
150  Void    decodePPS                   ( TComPPS* pcPPS ) { m_pcEntropyDecoderIf->parsePPS(pcPPS); }
151#endif
152  Void    decodeSliceHeader           ( TComSlice* pcSlice, ParameterSetManager *parameterSetManager, const Int prevTid0POC)  { m_pcEntropyDecoderIf->parseSliceHeader(pcSlice, parameterSetManager, prevTid0POC);         }
153
154  Void    decodeTerminatingBit        ( UInt& ruiIsLast )       { m_pcEntropyDecoderIf->parseTerminatingBit(ruiIsLast);     }
155  Void    decodeRemainingBytes( Bool noTrailingBytesExpected ) { m_pcEntropyDecoderIf->parseRemainingBytes(noTrailingBytesExpected); }
156
157  TDecEntropyIf* getEntropyDecoder() { return m_pcEntropyDecoderIf; }
158
159public:
160  Void decodeSplitFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
161  Void decodeSkipFlag          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
162  Void decodeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
163  Void decodeMergeFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
164  Void decodeMergeIndex        ( TComDataCU* pcSubCU, UInt uiPartIdx, UInt uiPartAddr, UInt uiDepth );
165  Void decodePredMode          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
166  Void decodePartSize          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
167
168  Void decodeIPCMInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
169
170  Void decodePredInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
171
172  Void decodeIntraDirModeLuma  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
173  Void decodeIntraDirModeChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
174
175  Void decodeQP                ( TComDataCU* pcCU, UInt uiAbsPartIdx );
176  Void decodeChromaQpAdjustment( TComDataCU* pcCU, UInt uiAbsPartIdx );
177
178private:
179
180  Void xDecodeTransform        ( Bool& bCodeDQP, Bool& isChromaQpAdjCoded, TComTU &rTu, const Int quadtreeTULog2MinSizeInCU );
181
182public:
183
184  Void decodeCoeff             ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, Bool& bCodeDQP, Bool& isChromaQpAdjCoded );
185
186};// END CLASS DEFINITION TDecEntropy
187
188//! \}
189
190#endif // __TDECENTROPY__
191
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