source: 3DVCSoftware/branches/HTM-15.1-dev0-Vidyo/source/App/TAppDecoder/TAppDecTop.h

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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
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32 */
33
34/** \file     TAppDecTop.h
35    \brief    Decoder application class (header)
36*/
37
38#ifndef __TAPPDECTOP__
39#define __TAPPDECTOP__
40
41#if _MSC_VER > 1000
42#pragma once
43#endif // _MSC_VER > 1000
44
45#include "TLibVideoIO/TVideoIOYuv.h"
46#include "TLibCommon/TComList.h"
47#include "TLibCommon/TComPicYuv.h"
48#include "TLibDecoder/TDecTop.h"
49#include "TAppDecCfg.h"
50
51//! \ingroup TAppDecoder
52//! \{
53
54// ====================================================================================================================
55// Class definition
56// ====================================================================================================================
57
58/// decoder application class
59class TAppDecTop : public TAppDecCfg
60{
61private:
62  // class interface 
63#if NH_MV
64  TDecTop*                        m_tDecTop             [ MAX_NUM_LAYERS ];    ///< decoder classes
65  TVideoIOYuv*                    m_tVideoIOYuvReconFile[ MAX_NUM_LAYERS ];    ///< reconstruction YUV class
66  Int                             m_layerIdToDecIdx     [ MAX_NUM_LAYER_IDS ]; ///< mapping from layer id to decoder index
67  Int                             m_numDecoders;                               ///< number of decoder instances
68  TComPicLists                    m_dpb;                                       ///< picture buffers of decoder instances
69
70  TComPic*                        m_curPic;                                    ///< currently decoded picture
71  TComAu                          m_curAu;                                     ///< currently decoded Au
72 
73  // Random access related
74  Bool                            m_handleCraAsBlaFlag; 
75  Bool                            m_handleCraAsBlaFlagSetByExtMeans; 
76  Bool                            m_noClrasOutputFlag; 
77  Bool                            m_noClrasOutputFlagSetByExtMeans; 
78  Bool                            m_noRaslOutputFlagAssocIrap           [ MAX_NUM_LAYER_IDS ]; 
79
80  // Layer wise startup
81  Bool                            m_firstPicInLayerDecodedFlag          [ MAX_NUM_LAYER_IDS ];
82  Bool                            m_layerInitilizedFlag                 [ MAX_NUM_LAYER_IDS ]; 
83  Bool                            m_layerResetFlag; 
84
85  // DPB related variables
86  Int                             m_maxNumReorderPics; 
87  Int                             m_maxLatencyIncreasePlus1; 
88  Int                             m_maxLatencyValue; 
89  Int                             m_maxDecPicBufferingMinus1            [ MAX_NUM_LAYER_IDS ];
90
91  // Poc resetting
92  Int                             m_lastPresentPocResetIdc              [ MAX_NUM_LAYER_IDS ];
93  Bool                            m_firstPicInPocResettingPeriodReceived[ MAX_NUM_LAYER_IDS ];
94  Bool                            m_pocDecrementedInDpbFlag             [ MAX_NUM_LAYER_IDS ]; 
95  Bool                            m_newPicIsFstPicOfAllLayOfPocResetPer;
96  Bool                            m_newPicIsPocResettingPic;
97
98  // General decoding state
99  Bool                            m_newVpsActivatedbyCurAu; 
100  Bool                            m_newVpsActivatedbyCurPic; 
101  Bool                            m_eosInLayer                          [ MAX_NUM_LAYER_IDS ];
102  Bool                            m_initilizedFromVPS;
103  Bool                            m_firstSliceInBitstream;
104  UInt64                          m_decodingOrder                       [ MAX_NUM_LAYER_IDS ];
105  UInt64                          m_totalNumofPicsReceived;
106  Bool                            m_cvsStartFound; 
107  Int                             m_smallestLayerId;
108
109  // Decoding processes for current  picture
110  DecodingProcess                 m_decProcPocAndRps;
111  DecodingProcess                 m_decProcCvsg; 
112 
113  // Active parameter sets
114  const TComPPS*                  m_pps;                                ///< active PPS
115  const TComSPS*                  m_sps;                                ///< active SPS
116  const TComVPS*                  m_vps;                                ///< active VPS
117
118  Bool                            m_reconOpen           [ MAX_NUM_LAYERS ]; ///< reconstruction file opened
119#if NH_3D
120  FILE*                           m_pScaleOffsetFile;
121  CamParsCollector                m_cCamParsCollector;
122#endif
123#else
124  TDecTop                         m_cTDecTop;                     ///< decoder class
125  TVideoIOYuv                     m_cTVideoIOYuvReconFile;        ///< reconstruction YUV class
126  // for output control
127  Int                             m_iPOCLastDisplay;              ///< last POC in display order
128#endif
129  std::ofstream                   m_seiMessageFileStream;         ///< Used for outputing SEI messages. 
130public:
131  TAppDecTop();
132  virtual ~TAppDecTop() {}
133
134  Void  create            (); ///< create internal members
135  Void  destroy           (); ///< destroy internal members
136  Void  decode            (); ///< main decoding function
137#if NH_MV
138  UInt  getNumberOfChecksumErrorsDetected( ) const;
139  UInt  getNumberOfChecksumErrorsDetected( Int decIdx ) const { return m_tDecTop[decIdx]->getNumberOfChecksumErrorsDetected(); }
140#else
141  UInt  getNumberOfChecksumErrorsDetected() const { return m_cTDecTop.getNumberOfChecksumErrorsDetected(); }
142#endif
143
144protected:
145
146  Void  xCreateDecLib     (); ///< create internal classes
147  Void  xDestroyDecLib    (); ///< destroy internal classes
148  Void  xInitDecLib       (); ///< initialize decoder class
149
150#if !NH_MV
151  Void  xWriteOutput      ( TComList<TComPic*>* pcListPic , UInt tId); ///< write YUV to file
152  Void  xFlushOutput      ( TComList<TComPic*>* pcListPic ); ///< flush all remaining decoded pictures to file
153  Bool  isNaluWithinTargetDecLayerIdSet    ( InputNALUnit* nalu ); ///< check whether given Nalu is within targetDecLayerIdSet
154
155#else
156  // Process NAL units
157  Bool xExtractAndRewrite                  ( InputNALUnit* nalu );
158  Void xProcessVclNalu                     ( InputNALUnit nalu );
159  Bool xIsSkipVclNalu                      ( InputNALUnit& nalu, Bool isFirstSliceOfPic );
160  Void xProcessNonVclNalu                  ( InputNALUnit nalu );
161  Void xTerminateDecoding                  ( );
162
163  // Process slice
164  Void xDecodeFirstSliceOfPicture          ( InputNALUnit nalu, Bool sliceIsFirstOfNewAu ); 
165  Void xDecodeFollowSliceOfPicture         ( InputNALUnit nalu );
166
167  // Process picture 
168  Void xFinalizePreviousPictures           ( Bool sliceIsFirstOfNewAU );
169  Void xFinalizePic                        ( Bool curPicIsLastInAu );
170  Void xFinalizeAU                         ( );
171  Void xPicDecoding                        ( DecProcPart curPart, Bool picPosInAuIndication ); 
172
173  // Clause 8
174  Void x812CvsgDecodingProcess             ( Int decIdx );
175  Void x813decProcForCodPicWithLIdZero     ( DecProcPart curPart );
176
177  // Annex C (DPB)
178  Void xC522OutputAndRemOfPicsFromDpb      ( );
179  Void xC523PicDecMarkAddBumpAndStor       ( );
180  Void xC524Bumping                        ( );
181
182  // Annex F.8
183  Void xF811GeneralDecProc                 ( InputNALUnit nalu );
184  Void xF812CvsgDecodingProcess            ( Int decIdx );
185  Void xF813ComDecProcForACodedPic         ( DecProcPart curPart, Bool picPosInAuIndication );
186  Void xF814decProcForCodPicWithLIdZero    ( DecProcPart curPart );
187  Void xF816decProcEndDecOfCodPicLIdGrtZero( );
188
189  // Annex F.13 (DPB)
190  Void xF13521InitDpb                      ( );
191  Void xF13522OutputAndRemOfPicsFromDpb    ( Bool beforePocDerivation );
192  Void xF13523PicDecMarkAddBumpAndStor     ( Bool curPicIsLastInAu   );
193  Void xF13524Bumping                      ( TComList<TComAu*> aus );
194
195  // Helpers
196  TDecTop* xGetDecoder                     ( InputNALUnit& nalu ); 
197  Int   xGetDecoderIdx                     ( Int layerId, Bool createFlag = false );
198  Int   xPreDecodePoc                      ( InputNALUnit& nalu );
199  Bool  xDetectNewAu                       ( InputNALUnit& nalu );
200  Void  xDetectNewPocResettingPeriod       ( InputNALUnit& nalu );
201  Bool  xIsNaluInTargetDecLayerIdSet       ( InputNALUnit* nalu ); ///< check whether given Nalu is within targetDecLayerIdSet
202  Bool  xAllRefLayersInitilized            ( Int curLayerId );
203  Void  xInitFileIO                        ( ); 
204  Void  xOpenReconFile                     ( TComPic* curPic );
205  Void  xFlushOutput                       ( );
206  Void  xCropAndOutput                     ( TComPic* curPic ); 
207#endif
208};
209
210//! \}
211
212#endif
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