source: SHVCSoftware/trunk/source/Lib/TLibDecoder/TDecCAVLC.h @ 55

Last change on this file since 55 was 2, checked in by seregin, 12 years ago

Initial import by Vadim Seregin <vseregin@…>
File size: 6.9 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) 2010-2012, 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     TDecCAVLC.h
35    \brief    CAVLC decoder class (header)
36*/
37
38#ifndef __TDECCAVLC__
39#define __TDECCAVLC__
40
41#if _MSC_VER > 1000
42#pragma once
43#endif // _MSC_VER > 1000
44
45#include "TDecEntropy.h"
46#include "SyntaxElementParser.h"
47
48//! \ingroup TLibDecoder
49//! \{
50
51// ====================================================================================================================
52// Class definition
53// ====================================================================================================================
54
55class SEImessages;
56
57/// CAVLC decoder class
58class TDecCavlc : public SyntaxElementParser, public TDecEntropyIf
59{
60public:
61  TDecCavlc();
62  virtual ~TDecCavlc();
63 
64protected:
65  Void  xReadEpExGolomb       ( UInt& ruiSymbol, UInt uiCount );
66  Void  xReadExGolombLevel    ( UInt& ruiSymbol );
67  Void  xReadUnaryMaxSymbol   ( UInt& ruiSymbol, UInt uiMaxSymbol );
68 
69  Void  xReadPCMAlignZero     ();
70
71  UInt  xGetBit             ();
72 
73  void  parseShortTermRefPicSet            (TComSPS* pcSPS, TComReferencePictureSet* pcRPS, Int idx);
74private:
75#if !REMOVE_FGS
76  Int           m_iSliceGranularity; //!< slice granularity
77#endif
78 
79public:
80
81  /// rest entropy coder by intial QP and IDC in CABAC
82  Void  resetEntropy        ( TComSlice* pcSlice  )     { assert(0); };
83  Void  setBitstream        ( TComInputBitstream* p )   { m_pcBitstream = p; }
84#if !REMOVE_FGS
85  /// set slice granularity
86  Void setSliceGranularity(Int iSliceGranularity)  {m_iSliceGranularity = iSliceGranularity;}
87
88  /// get slice granularity
89  Int  getSliceGranularity()                       {return m_iSliceGranularity;             }
90#endif
91  Void  parseTransformSubdivFlag( UInt& ruiSubdivFlag, UInt uiLog2TransformBlockSize );
92  Void  parseQtCbf          ( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eType, UInt uiTrDepth, UInt uiDepth );
93  Void  parseQtRootCbf      ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt& uiQtRootCbf );
94  Void  parseVPS            ( TComVPS* pcVPS );
95  Void  parseSPS            ( TComSPS* pcSPS );
96  Void  parsePPS            ( TComPPS* pcPPS);
97#if SUPPORT_FOR_VUI
98#if !BUFFERING_PERIOD_AND_TIMING_SEI
99  Void  parseVUI            ( TComVUI* pcVUI );
100#else
101  Void  parseVUI            ( TComVUI* pcVUI, TComSPS* pcSPS );
102#endif
103#endif
104  Void  parseSEI(SEImessages&);
105#if !REMOVE_APS
106  Void  parseAPS            ( TComAPS* pAPS );
107#endif
108#if PROFILE_TIER_LEVEL_SYNTAX
109  Void  parsePTL            ( TComPTL *rpcPTL, Bool profilePresentFlag, Int maxNumSubLayersMinus1 );
110  Void  parseProfileTier    (ProfileTierLevel *ptl);
111#endif
112  Void  parseSliceHeader    ( TComSlice*& rpcSlice, ParameterSetManagerDecoder *parameterSetManager);
113  Void  parseTerminatingBit ( UInt& ruiBit );
114 
115  Void  parseMVPIdx         ( Int& riMVPIdx );
116 
117  Void  parseSkipFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
118  Void  parseCUTransquantBypassFlag( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
119  Void parseMergeFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt uiPUIdx );
120  Void parseMergeIndex      ( TComDataCU* pcCU, UInt& ruiMergeIndex, UInt uiAbsPartIdx, UInt uiDepth );
121  Void parseSplitFlag       ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
122  Void parsePartSize        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
123  Void parsePredMode        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
124 
125  Void parseIntraDirLumaAng ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
126 
127  Void parseIntraDirChroma  ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
128 
129  Void parseInterDir        ( TComDataCU* pcCU, UInt& ruiInterDir, UInt uiAbsPartIdx, UInt uiDepth );
130  Void parseRefFrmIdx       ( TComDataCU* pcCU, Int& riRefFrmIdx,  UInt uiAbsPartIdx, UInt uiDepth, RefPicList eRefList );
131  Void parseMvd             ( TComDataCU* pcCU, UInt uiAbsPartAddr,UInt uiPartIdx,    UInt uiDepth, RefPicList eRefList );
132 
133  Void parseDeltaQP         ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth );
134  Void parseCoeffNxN        ( TComDataCU* pcCU, TCoeff* pcCoef, UInt uiAbsPartIdx, UInt uiWidth, UInt uiHeight, UInt uiDepth, TextType eTType );
135  Void parseTransformSkipFlags ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt width, UInt height, UInt uiDepth, TextType eTType);
136
137  Void parseIPCMInfo        ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiDepth);
138
139#if INTRA_BL
140  Void parseIntraBLFlag     ( TComDataCU* pcCU, UInt uiAbsPartIdx, UInt uiPartIdx, UInt uiDepth );
141#endif
142  Void updateContextTables  ( SliceType eSliceType, Int iQp ) { return; }
143  Void decodeFlush() {};
144
145  Void xParsePredWeightTable ( TComSlice* pcSlice );
146  Void  parseScalingList               ( TComScalingList* scalingList );
147  Void xDecodeScalingList    ( TComScalingList *scalingList, UInt sizeId, UInt listId);
148protected:
149#if !REMOVE_ALF
150  Void  xParseAlfParam       ( ALFParam* pAlfParam );
151  Int   xGolombDecode        ( Int k );
152#endif
153  Bool  xMoreRbspData();
154};
155
156//! \}
157
158#endif // !defined(AFX_TDECCAVLC_H__9732DD64_59B0_4A41_B29E_1A5B18821EAD__INCLUDED_)
159
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