libbpg-0.9.3
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jctvc/TLibEncoder/TEncSampleAdaptiveOffset.h
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168
jctvc/TLibEncoder/TEncSampleAdaptiveOffset.h
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/* The copyright in this software is being made available under the BSD
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* License, included below. This software may be subject to other third party
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* and contributor rights, including patent rights, and no such rights are
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* granted under this license.
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*
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* Copyright (c) 2010-2014, ITU/ISO/IEC
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* * Redistributions of source code must retain the above copyright notice,
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* this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials provided with the distribution.
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* * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
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* be used to endorse or promote products derived from this software without
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* specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
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* THE POSSIBILITY OF SUCH DAMAGE.
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*/
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/**
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\file TEncSampleAdaptiveOffset.h
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\brief estimation part of sample adaptive offset class (header)
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*/
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#ifndef __TENCSAMPLEADAPTIVEOFFSET__
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#define __TENCSAMPLEADAPTIVEOFFSET__
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#include "TLibCommon/TComSampleAdaptiveOffset.h"
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#include "TLibCommon/TComPic.h"
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#include "TEncEntropy.h"
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#include "TEncSbac.h"
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#include "TLibCommon/TComBitCounter.h"
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//! \ingroup TLibEncoder
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//! \{
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// ====================================================================================================================
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// Class definition
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// ====================================================================================================================
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enum SAOCabacStateLablesRDO //CABAC state labels
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{
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SAO_CABACSTATE_PIC_INIT =0,
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SAO_CABACSTATE_BLK_CUR,
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SAO_CABACSTATE_BLK_NEXT,
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SAO_CABACSTATE_BLK_MID,
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SAO_CABACSTATE_BLK_TEMP,
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NUM_SAO_CABACSTATE_LABELS
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};
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struct SAOStatData //data structure for SAO statistics
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{
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Int64 diff[MAX_NUM_SAO_CLASSES];
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Int64 count[MAX_NUM_SAO_CLASSES];
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SAOStatData(){}
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~SAOStatData(){}
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Void reset()
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{
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::memset(diff, 0, sizeof(Int64)*MAX_NUM_SAO_CLASSES);
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::memset(count, 0, sizeof(Int64)*MAX_NUM_SAO_CLASSES);
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}
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const SAOStatData& operator=(const SAOStatData& src)
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{
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::memcpy(diff, src.diff, sizeof(Int64)*MAX_NUM_SAO_CLASSES);
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::memcpy(count, src.count, sizeof(Int64)*MAX_NUM_SAO_CLASSES);
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return *this;
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}
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#if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
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const SAOStatData& operator+= (const SAOStatData& src)
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{
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for(Int i=0; i< MAX_NUM_SAO_CLASSES; i++)
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{
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diff[i] += src.diff[i];
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count[i] += src.count[i];
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}
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return *this;
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}
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#endif
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};
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class TEncSampleAdaptiveOffset : public TComSampleAdaptiveOffset
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{
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public:
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TEncSampleAdaptiveOffset();
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virtual ~TEncSampleAdaptiveOffset();
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//interface
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#if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
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Void createEncData(Bool isPreDBFSamplesUsed);
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#else
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Void createEncData();
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#endif
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Void destroyEncData();
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Void initRDOCabacCoder(TEncSbac* pcRDGoOnSbacCoder, TComSlice* pcSlice) ;
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Void SAOProcess(TComPic* pPic, Bool* sliceEnabled, const Double *lambdas
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#if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
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, Bool isPreDBFSamplesUsed
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#endif
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);
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public: //methods
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#if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
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Void getPreDBFStatistics(TComPic* pPic);
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#endif
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private: //methods
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Void getStatistics(SAOStatData*** blkStats, TComPicYuv* orgYuv, TComPicYuv* srcYuv,TComPic* pPic
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#if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
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, Bool isCalculatePreDeblockSamples = false
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#endif
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);
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Void decidePicParams(Bool* sliceEnabled, Int picTempLayer);
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Void decideBlkParams(TComPic* pic, Bool* sliceEnabled, SAOStatData*** blkStats, TComPicYuv* srcYuv, TComPicYuv* resYuv, SAOBlkParam* reconParams, SAOBlkParam* codedParams);
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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
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#if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
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, Bool isCalculatePreDeblockSamples
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#endif
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);
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Void deriveModeNewRDO(Int ctuRsAddr, SAOBlkParam* mergeList[NUM_SAO_MERGE_TYPES], Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel);
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Void deriveModeMergeRDO(Int ctuRsAddr, SAOBlkParam* mergeList[NUM_SAO_MERGE_TYPES], Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel);
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Int64 getDistortion(ComponentID compIdx, Int typeIdc, Int typeAuxInfo, Int* offsetVal, SAOStatData& statData);
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Void deriveOffsets(ComponentID compIdx, Int typeIdc, SAOStatData& statData, Int* quantOffsets, Int& typeAuxInfo);
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inline Int64 estSaoDist(Int64 count, Int64 offset, Int64 diffSum, Int shift);
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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 );
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#if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
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Void addPreDBFStatistics(SAOStatData*** blkStats);
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#endif
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private: //members
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//for RDO
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TEncSbac** m_pppcRDSbacCoder;
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TEncSbac* m_pcRDGoOnSbacCoder;
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#if FAST_BIT_EST
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TEncBinCABACCounter** m_pppcBinCoderCABAC;
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#else
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TEncBinCABAC** m_pppcBinCoderCABAC;
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#endif
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Double m_lambda[MAX_NUM_COMPONENT];
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//statistics
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SAOStatData*** m_statData; //[ctu][comp][classes]
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#if SAO_ENCODE_ALLOW_USE_PREDEBLOCK
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SAOStatData*** m_preDBFstatData;
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#endif
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#if SAO_ENCODING_CHOICE
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Double m_saoDisabledRate[MAX_NUM_COMPONENT][MAX_TLAYER];
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#endif
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Int m_skipLinesR[MAX_NUM_COMPONENT][NUM_SAO_NEW_TYPES];
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Int m_skipLinesB[MAX_NUM_COMPONENT][NUM_SAO_NEW_TYPES];
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};
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//! \}
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#endif
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