source: SHVCSoftware/branches/SHM-2.1-dev/source/Lib/TLibDecoder/TDecEntropy.h @ 1335

Last change on this file since 1335 was 224, checked in by qualcomm, 12 years ago

Conditional signaling of temporal sub-layer information in SPS (MACRO: SPS_SUB_LAYER_INFO)

Do not signal sps_max_sub_layers_minus1 and sps_temporal_id_nesting_flag for nuh_layer_id > 0.

From: Adarsh K. Ramasubramonian <aramasub@…>

File size: 9.6 KB
Line 
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
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18 *    be used to endorse or promote products derived from this software without
19 *    specific prior written permission.
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22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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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
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 SPS_SUB_LAYER_INFO
69  virtual Void  parseSPS                  ( TComSPS* pcSPS, ParameterSetManagerDecoder *parameterSetManager )           = 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  virtual Void parsePartSize      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
88  virtual Void parsePredMode      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
89 
90  virtual Void parseIntraDirLumaAng( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
91 
92  virtual Void parseIntraDirChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
93 
94  virtual Void parseInterDir      ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx ) = 0;
95  virtual Void parseRefFrmIdx     ( TComDataCU* pcCU, Int& riRefFrmIdx, RefPicList eRefList ) = 0;
96  virtual Void parseMvd           ( TComDataCU* pcCU, UInt uiAbsPartAddr, UInt uiPartIdx, UInt uiDepth, RefPicList eRefList ) = 0;
97 
98  virtual Void parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize ) = 0;
99  virtual Void parseQtCbf         ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth ) = 0;
100  virtual Void parseQtRootCbf     ( UInt uiAbsPartIdx, UInt& uiQtRootCbf ) = 0;
101 
102  virtual Void parseDeltaQP       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth ) = 0;
103 
104  virtual Void parseIPCMInfo     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth) = 0;
105
106  virtual Void parseCoeffNxN( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType ) = 0;
107  virtual Void parseTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType) = 0;
108
109#if INTRA_BL
110  virtual Void parseIntraBLFlag   ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth ) = 0;
111#endif
112
113  virtual Void updateContextTables( SliceType eSliceType, Int iQp ) = 0;
114 
115  virtual ~TDecEntropyIf() {}
116};
117
118/// entropy decoder class
119class TDecEntropy
120{
121private:
122  TDecEntropyIf*  m_pcEntropyDecoderIf;
123  TComPrediction* m_pcPrediction;
124  UInt    m_uiBakAbsPartIdx;
125  UInt    m_uiBakChromaOffset;
126  UInt    m_bakAbsPartIdxCU;
127 
128public:
129  Void init (TComPrediction* p) {m_pcPrediction = p;}
130  Void decodePUWise       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
131  Void decodeInterDirPU   ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx );
132  Void decodeRefFrmIdxPU  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
133  Void decodeMvdPU        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
134  Void decodeMVPIdxPU     ( TComDataCU* pcSubCU, UInt uiPartAddr, UInt uiDepth, UInt uiPartIdx, RefPicList eRefList );
135 
136  Void    setEntropyDecoder           ( TDecEntropyIf* p );
137  Void    setBitstream                ( TComInputBitstream* p ) { m_pcEntropyDecoderIf->setBitstream(p);                    }
138  Void    resetEntropy                ( TComSlice* p)           { m_pcEntropyDecoderIf->resetEntropy(p);                    }
139  Void    decodeVPS                   ( TComVPS* pcVPS ) { m_pcEntropyDecoderIf->parseVPS(pcVPS); }
140#if SPS_SUB_LAYER_INFO
141  Void    decodeSPS                   ( TComSPS* pcSPS, ParameterSetManagerDecoder *parameterSetManager )    { m_pcEntropyDecoderIf->parseSPS(pcSPS, parameterSetManager);                    }
142#else
143  Void    decodeSPS                   ( TComSPS* pcSPS     )    { m_pcEntropyDecoderIf->parseSPS(pcSPS);                    }
144#endif
145  Void    decodePPS                   ( TComPPS* pcPPS )    { m_pcEntropyDecoderIf->parsePPS(pcPPS);                    }
146  Void    decodeSliceHeader           ( TComSlice*& rpcSlice, ParameterSetManagerDecoder *parameterSetManager)  { m_pcEntropyDecoderIf->parseSliceHeader(rpcSlice, parameterSetManager);         }
147
148  Void    decodeTerminatingBit        ( UInt& ruiIsLast )       { m_pcEntropyDecoderIf->parseTerminatingBit(ruiIsLast);     }
149 
150  TDecEntropyIf* getEntropyDecoder() { return m_pcEntropyDecoderIf; }
151 
152public:
153  Void decodeSplitFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
154  Void decodeSkipFlag          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
155  Void decodeCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
156  Void decodeMergeFlag         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
157  Void decodeMergeIndex        ( TComDataCU* pcSubCU, UInt uiPartIdx, UInt uiPartAddr, UInt uiDepth );
158  Void decodePredMode          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
159  Void decodePartSize          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
160 
161  Void decodeIPCMInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
162
163  Void decodePredInfo          ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, TComDataCU* pcSubCU );
164 
165  Void decodeIntraDirModeLuma  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
166  Void decodeIntraDirModeChroma( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
167 
168  Void decodeQP                ( TComDataCU* pcCU, UInt uiAbsPartIdx );
169 
170  Void updateContextTables    ( SliceType eSliceType, Int iQp ) { m_pcEntropyDecoderIf->updateContextTables( eSliceType, iQp ); }
171 
172#if INTRA_BL
173  Void decodeIntraBLFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth );
174#endif
175 
176private:
177  Void xDecodeTransform        ( TComDataCU* pcCU, UInt offsetLuma, UInt offsetChroma, UInt uiAbsPartIdx, UInt uiDepth, UInt width, UInt height, UInt uiTrIdx, Bool& bCodeDQP );
178
179public:
180  Void decodeCoeff             ( TComDataCU* pcCU                 , UInt uiAbsPartIdx, UInt uiDepth, UInt uiWidth, UInt uiHeight, Bool& bCodeDQP );
181 
182};// END CLASS DEFINITION TDecEntropy
183
184//! \}
185
186#endif // __TDECENTROPY__
187
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