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33 
34 /**
35  \file     TEncSampleAdaptiveOffset.h
36  \brief    estimation part of sample adaptive offset class (header)
37  */
38 
39 #ifndef __TENCSAMPLEADAPTIVEOFFSET__
40 #define __TENCSAMPLEADAPTIVEOFFSET__
41 
42 #include "TLibCommon/TComSampleAdaptiveOffset.h"
43 #include "TLibCommon/TComPic.h"
44 
45 #include "TEncEntropy.h"
46 #include "TEncSbac.h"
47 #include "TLibCommon/TComBitCounter.h"
48 
49 //! \ingroup TLibEncoder
50 //! \{
51 
52 // ====================================================================================================================
53 // Class definition
54 // ====================================================================================================================
55 
56 enum SAOCabacStateLablesRDO //CABAC state labels
57 {
58   SAO_CABACSTATE_PIC_INIT =0,
59   SAO_CABACSTATE_BLK_CUR,
60   SAO_CABACSTATE_BLK_NEXT,
61   SAO_CABACSTATE_BLK_MID,
62   SAO_CABACSTATE_BLK_TEMP,
63   NUM_SAO_CABACSTATE_LABELS
64 };
65 
66 struct SAOStatData //data structure for SAO statistics
67 {
68   Int64 diff[MAX_NUM_SAO_CLASSES];
69   Int64 count[MAX_NUM_SAO_CLASSES];
70 
SAOStatDataSAOStatData71   SAOStatData(){}
~SAOStatDataSAOStatData72   ~SAOStatData(){}
resetSAOStatData73   Void reset()
74   {
75     ::memset(diff, 0, sizeof(Int64)*MAX_NUM_SAO_CLASSES);
76     ::memset(count, 0, sizeof(Int64)*MAX_NUM_SAO_CLASSES);
77   }
78   const SAOStatData& operator=(const SAOStatData& src)
79   {
80     ::memcpy(diff, src.diff, sizeof(Int64)*MAX_NUM_SAO_CLASSES);
81     ::memcpy(count, src.count, sizeof(Int64)*MAX_NUM_SAO_CLASSES);
82     return *this;
83   }
84 #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
85   const SAOStatData& operator+= (const SAOStatData& src)
86   {
87     for(Int i=0; i< MAX_NUM_SAO_CLASSES; i++)
88     {
89       diff[i] += src.diff[i];
90       count[i] += src.count[i];
91     }
92     return *this;
93   }
94 #endif
95 };
96 
97 class TEncSampleAdaptiveOffset : public TComSampleAdaptiveOffset
98 {
99 public:
100   TEncSampleAdaptiveOffset();
101   virtual ~TEncSampleAdaptiveOffset();
102 
103   //interface
104 #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
105   Void createEncData(Bool isPreDBFSamplesUsed);
106 #else
107   Void createEncData();
108 #endif
109   Void destroyEncData();
110   Void initRDOCabacCoder(TEncSbac* pcRDGoOnSbacCoder, TComSlice* pcSlice) ;
111   Void SAOProcess(TComPic* pPic, Bool* sliceEnabled, const Double *lambdas
112 #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
113                 , Bool isPreDBFSamplesUsed
114 #endif
115                 );
116 public: //methods
117 #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
118   Void getPreDBFStatistics(TComPic* pPic);
119 #endif
120 private: //methods
121   Void getStatistics(SAOStatData*** blkStats, TComPicYuv* orgYuv, TComPicYuv* srcYuv,TComPic* pPic
122 #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
123                    , Bool isCalculatePreDeblockSamples = false
124 #endif
125                    );
126   Void decidePicParams(Bool* sliceEnabled, Int picTempLayer);
127   Void decideBlkParams(TComPic* pic, Bool* sliceEnabled, SAOStatData*** blkStats, TComPicYuv* srcYuv, TComPicYuv* resYuv, SAOBlkParam* reconParams, SAOBlkParam* codedParams);
128   Void getBlkStats(ComponentID compIdx, SAOStatData* statsDataTypes, Pel* srcBlk, Pel* orgBlk, Int srcStride, Int orgStride, Int width, Int height, Bool isLeftAvail,  Bool isRightAvail, Bool isAboveAvail, Bool isBelowAvail, Bool isAboveLeftAvail, Bool isAboveRightAvail, Bool isBelowLeftAvail, Bool isBelowRightAvail
129 #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
130                   , Bool isCalculatePreDeblockSamples
131 #endif
132                   );
133   Void deriveModeNewRDO(Int ctuRsAddr, SAOBlkParam* mergeList[NUM_SAO_MERGE_TYPES], Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel);
134   Void deriveModeMergeRDO(Int ctuRsAddr, SAOBlkParam* mergeList[NUM_SAO_MERGE_TYPES], Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel);
135   Int64 getDistortion(ComponentID compIdx, Int typeIdc, Int typeAuxInfo, Int* offsetVal, SAOStatData& statData);
136   Void deriveOffsets(ComponentID compIdx, Int typeIdc, SAOStatData& statData, Int* quantOffsets, Int& typeAuxInfo);
137   inline Int64 estSaoDist(Int64 count, Int64 offset, Int64 diffSum, Int shift);
138   inline Int estIterOffset(Int typeIdx, Int classIdx, Double lambda, Int offsetInput, Int64 count, Int64 diffSum, Int shift, Int bitIncrease, Int64& bestDist, Double& bestCost, Int offsetTh );
139 #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
140   Void addPreDBFStatistics(SAOStatData*** blkStats);
141 #endif
142 private: //members
143   //for RDO
144   TEncSbac**             m_pppcRDSbacCoder;
145   TEncSbac*              m_pcRDGoOnSbacCoder;
146 #if FAST_BIT_EST
147   TEncBinCABACCounter**  m_pppcBinCoderCABAC;
148 #else
149   TEncBinCABAC**         m_pppcBinCoderCABAC;
150 #endif
151   Double                 m_lambda[MAX_NUM_COMPONENT];
152 
153   //statistics
154   SAOStatData***         m_statData; //[ctu][comp][classes]
155 #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
156   SAOStatData***         m_preDBFstatData;
157 #endif
158 #if SAO_ENCODING_CHOICE
159   Double                 m_saoDisabledRate[MAX_NUM_COMPONENT][MAX_TLAYER];
160 #endif
161   Int                    m_skipLinesR[MAX_NUM_COMPONENT][NUM_SAO_NEW_TYPES];
162   Int                    m_skipLinesB[MAX_NUM_COMPONENT][NUM_SAO_NEW_TYPES];
163 };
164 
165 
166 //! \}
167 
168 #endif
169