source: SHVCSoftware/branches/SHM-2.1-dev/source/Lib/TLibEncoder/TEncEntropy.h @ 235

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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
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25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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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     TEncEntropy.h
35    \brief    entropy encoder class (header)
36*/
37
38#ifndef __TENCENTROPY__
39#define __TENCENTROPY__
40
41#include "TLibCommon/TComSlice.h"
42#include "TLibCommon/TComDataCU.h"
43#include "TLibCommon/TComBitStream.h"
44#include "TLibCommon/ContextModel.h"
45#include "TLibCommon/TComPic.h"
46#include "TLibCommon/TComTrQuant.h"
47#include "TLibCommon/TComSampleAdaptiveOffset.h"
48
49class TEncSbac;
50class TEncCavlc;
51class SEI;
52
53// ====================================================================================================================
54// Class definition
55// ====================================================================================================================
56
57/// entropy encoder pure class
58class TEncEntropyIf
59{
60public:
61  virtual Void  resetEntropy          ()                = 0;
62  virtual Void  determineCabacInitIdx ()                = 0;
63  virtual Void  setBitstream          ( TComBitIf* p )  = 0;
64  virtual Void  setSlice              ( TComSlice* p )  = 0;
65  virtual Void  resetBits             ()                = 0;
66  virtual Void  resetCoeffCost        ()                = 0;
67  virtual UInt  getNumberOfWrittenBits()                = 0;
68  virtual UInt  getCoeffCost          ()                = 0;
69
70  virtual Void  codeVPS                 ( TComVPS* pcVPS )                                      = 0;
71  virtual Void  codeSPS                 ( TComSPS* pcSPS )                                      = 0;
72  virtual Void  codePPS                 ( TComPPS* pcPPS )                                      = 0;
73  virtual Void  codeSliceHeader         ( TComSlice* pcSlice )                                  = 0;
74
75  virtual Void  codeTilesWPPEntryPoint  ( TComSlice* pSlice )     = 0;
76  virtual Void  codeTerminatingBit      ( UInt uilsLast )                                       = 0;
77  virtual Void  codeSliceFinish         ()                                                      = 0;
78  virtual Void codeMVPIdx ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList ) = 0;
79  virtual Void codeScalingList   ( TComScalingList* scalingList )      = 0;
80 
81public:
82  virtual Void codeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
83  virtual Void codeSkipFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
84  virtual Void codeMergeFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
85  virtual Void codeMergeIndex    ( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
86  virtual Void codeSplitFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
87 
88#if INTRA_BL
89  virtual Void codeIntraBLFlag      ( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
90#endif
91  virtual Void codePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
92  virtual Void codePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
93 
94  virtual Void codeIPCMInfo      ( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
95
96  virtual Void codeTransformSubdivFlag( UInt uiSymbol, UInt uiCtx ) = 0;
97  virtual Void codeQtCbf         ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth ) = 0;
98  virtual Void codeQtRootCbf     ( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
99  virtual Void codeQtCbfZero     ( TComDataCU* pcCU, TextType eType, UInt uiTrDepth ) = 0;
100  virtual Void codeQtRootCbfZero ( TComDataCU* pcCU ) = 0;
101  virtual Void codeIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool isMultiplePU ) = 0;
102 
103  virtual Void codeIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
104  virtual Void codeInterDir      ( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
105  virtual Void codeRefFrmIdx     ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList )      = 0;
106  virtual Void codeMvd           ( TComDataCU* pcCU, UInt uiAbsPartIdx, RefPicList eRefList )      = 0;
107  virtual Void codeDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx ) = 0;
108  virtual Void codeCoeffNxN      ( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType ) = 0;
109  virtual Void codeTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, TextType eTType ) = 0;
110  virtual Void codeSAOSign          ( UInt code   ) = 0;
111  virtual Void codeSaoMaxUvlc       ( UInt code, UInt maxSymbol ) = 0;
112  virtual Void codeSaoMerge    ( UInt   uiCode  ) = 0;
113  virtual Void codeSaoTypeIdx      ( UInt   uiCode) = 0;
114  virtual Void codeSaoUflc         ( UInt uiLength, UInt   uiCode ) = 0;
115  virtual Void estBit               (estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, TextType eTType) = 0;
116 
117  virtual Void updateContextTables ( SliceType eSliceType, Int iQp, Bool bExecuteFinish )   = 0;
118  virtual Void updateContextTables ( SliceType eSliceType, Int iQp )   = 0;
119
120  virtual Void codeDFFlag (UInt uiCode, const Char *pSymbolName) = 0;
121  virtual Void codeDFSvlc (Int iCode, const Char *pSymbolName)   = 0;
122
123  virtual ~TEncEntropyIf() {}
124
125};
126
127/// entropy encoder class
128class TEncEntropy
129{
130private:
131  UInt    m_uiBakAbsPartIdx;
132  UInt    m_uiBakChromaOffset;
133  UInt    m_bakAbsPartIdxCU;
134
135public:
136  Void    setEntropyCoder           ( TEncEntropyIf* e, TComSlice* pcSlice );
137  Void    setBitstream              ( TComBitIf* p )          { m_pcEntropyCoderIf->setBitstream(p);  }
138  Void    resetBits                 ()                        { m_pcEntropyCoderIf->resetBits();      }
139  Void    resetCoeffCost            ()                        { m_pcEntropyCoderIf->resetCoeffCost(); }
140  UInt    getNumberOfWrittenBits    ()                        { return m_pcEntropyCoderIf->getNumberOfWrittenBits(); }
141  UInt    getCoeffCost              ()                        { return  m_pcEntropyCoderIf->getCoeffCost(); }
142  Void    resetEntropy              ()                        { m_pcEntropyCoderIf->resetEntropy();  }
143  Void    determineCabacInitIdx     ()                        { m_pcEntropyCoderIf->determineCabacInitIdx(); }
144 
145  Void    encodeSliceHeader         ( TComSlice* pcSlice );
146  Void    encodeTilesWPPEntryPoint( TComSlice* pSlice );
147  Void    encodeTerminatingBit      ( UInt uiIsLast );
148  Void    encodeSliceFinish         ();
149  TEncEntropyIf*      m_pcEntropyCoderIf;
150 
151public:
152  Void encodeVPS               ( TComVPS* pcVPS);
153  // SPS
154  Void encodeSPS               ( TComSPS* pcSPS );
155  Void encodePPS               ( TComPPS* pcPPS );
156  Void encodeSplitFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, Bool bRD = false );
157  Void encodeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
158  Void encodeSkipFlag          ( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
159  Void encodePUWise       ( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
160  Void encodeInterDirPU   ( TComDataCU* pcSubCU, UInt uiAbsPartIdx  );
161  Void encodeRefFrmIdxPU  ( TComDataCU* pcSubCU, UInt uiAbsPartIdx, RefPicList eRefList );
162  Void encodeMvdPU        ( TComDataCU* pcSubCU, UInt uiAbsPartIdx, RefPicList eRefList );
163  Void encodeMVPIdxPU     ( TComDataCU* pcSubCU, UInt uiAbsPartIdx, RefPicList eRefList );
164  Void encodeMergeFlag    ( TComDataCU* pcCU, UInt uiAbsPartIdx );
165  Void encodeMergeIndex   ( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
166#if INTRA_BL
167  Void encodeIntraBLFlag  ( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
168#endif
169  Void encodePredMode          ( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
170  Void encodePartSize          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, Bool bRD = false );
171  Void encodeIPCMInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
172  Void encodePredInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
173  Void encodeIntraDirModeLuma  ( TComDataCU* pcCU, UInt absPartIdx, Bool isMultiplePU = false );
174 
175  Void encodeIntraDirModeChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
176 
177  Void encodeTransformSubdivFlag( UInt uiSymbol, UInt uiCtx );
178  Void encodeQtCbf             ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth );
179  Void encodeQtCbfZero         ( TComDataCU* pcCU, TextType eType, UInt uiTrDepth );
180  Void encodeQtRootCbfZero     ( TComDataCU* pcCU );
181  Void encodeQtRootCbf         ( TComDataCU* pcCU, UInt uiAbsPartIdx );
182  Void encodeQP                ( TComDataCU* pcCU, UInt uiAbsPartIdx, Bool bRD = false );
183  Void updateContextTables     ( SliceType eSliceType, Int iQp, Bool bExecuteFinish )   { m_pcEntropyCoderIf->updateContextTables( eSliceType, iQp, bExecuteFinish );     }
184  Void updateContextTables     ( SliceType eSliceType, Int iQp )                        { m_pcEntropyCoderIf->updateContextTables( eSliceType, iQp, true );               }
185
186  Void encodeScalingList       ( TComScalingList* scalingList );
187
188private:
189  Void xEncodeTransform        ( TComDataCU* pcCU,UInt offsetLumaOffset, UInt offsetChroma, UInt uiAbsPartIdx, UInt uiDepth, UInt width, UInt height, UInt uiTrIdx, Bool& bCodeDQP );
190public:
191  Void encodeCoeff             ( TComDataCU* pcCU,                 UInt uiAbsPartIdx, UInt uiDepth, UInt uiWidth, UInt uiHeight, Bool& bCodeDQP );
192 
193  Void encodeCoeffNxN         ( TComDataCU* pcCU, TCoeff* pcCoeff, UInt uiAbsPartIdx, UInt uiTrWidth, UInt uiTrHeight, UInt uiDepth, TextType eType );
194 
195  Void estimateBit             ( estBitsSbacStruct* pcEstBitsSbac, Int width, Int height, TextType eTType);
196  Void    encodeSaoOffset(SaoLcuParam* saoLcuParam, UInt compIdx);
197  Void    encodeSaoUnitInterleaving(Int compIdx, Bool saoFlag, Int rx, Int ry, SaoLcuParam* saoLcuParam, Int cuAddrInSlice, Int cuAddrUpInSlice, Int allowMergeLeft, Int allowMergeUp);
198  static Int countNonZeroCoeffs( TCoeff* pcCoef, UInt uiSize );
199
200};// END CLASS DEFINITION TEncEntropy
201
202//! \}
203
204#endif // __TENCENTROPY__
205
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