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 * granted under this license.
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 * modification, are permitted provided that the following conditions are met:
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/** \file     TEncSearch.h
    \brief    encoder search class (header)
*/
#ifndef __TENCSEARCH__
#define __TENCSEARCH__

// Include files
#include "TLibCommon/TComYuv.h"
#include "TLibCommon/TComMotionInfo.h"
#include "TLibCommon/TComPattern.h"
#include "TLibCommon/TComPrediction.h"
#include "TLibCommon/TComTrQuant.h"
#include "TLibCommon/TComPic.h"
#include "TLibCommon/TComRectangle.h"
#include "TEncEntropy.h"
#include "TEncSbac.h"
#include "TEncCfg.h"

//! \ingroup TLibEncoder
//! \{

class TEncCu;

// ====================================================================================================================
// Class definition
// ====================================================================================================================

static const UInt MAX_NUM_REF_LIST_ADAPT_SR=2;
static const UInt MAX_IDX_ADAPT_SR=33;
static const UInt NUM_MV_PREDICTORS=3;

/// encoder search class
class TEncSearch : public TComPrediction
{
private:
  TCoeff**        m_ppcQTTempCoeff[MAX_NUM_COMPONENT /* 0->Y, 1->Cb, 2->Cr*/];
  TCoeff*         m_pcQTTempCoeff[MAX_NUM_COMPONENT];
#if ADAPTIVE_QP_SELECTION
  TCoeff**        m_ppcQTTempArlCoeff[MAX_NUM_COMPONENT];
  TCoeff*         m_pcQTTempArlCoeff[MAX_NUM_COMPONENT];
#endif
  UChar*          m_puhQTTempTrIdx;
  UChar*          m_puhQTTempCbf[MAX_NUM_COMPONENT];

  TComYuv*        m_pcQTTempTComYuv;
  TComYuv         m_tmpYuvPred; // To be used in xGetInterPredictionError() to avoid constant memory allocation/deallocation

  Char*           m_phQTTempCrossComponentPredictionAlpha[MAX_NUM_COMPONENT];
  Pel*            m_pSharedPredTransformSkip[MAX_NUM_COMPONENT];
  TCoeff*         m_pcQTTempTUCoeff[MAX_NUM_COMPONENT];
  UChar*          m_puhQTTempTransformSkipFlag[MAX_NUM_COMPONENT];
  TComYuv         m_pcQTTempTransformSkipTComYuv;
#if ADAPTIVE_QP_SELECTION
  TCoeff*         m_ppcQTTempTUArlCoeff[MAX_NUM_COMPONENT];
#endif

protected:
  // interface to option
  TEncCfg*        m_pcEncCfg;

  // interface to classes
  TComTrQuant*    m_pcTrQuant;
  TComRdCost*     m_pcRdCost;
  TEncEntropy*    m_pcEntropyCoder;

  // ME parameters
  Int             m_iSearchRange;
  Int             m_bipredSearchRange; // Search range for bi-prediction
  Int             m_iFastSearch;
#if NH_MV
  Bool            m_vertRestriction; 
#endif 
  Int             m_aaiAdaptSR[MAX_NUM_REF_LIST_ADAPT_SR][MAX_IDX_ADAPT_SR];
  TComMv          m_cSrchRngLT;
  TComMv          m_cSrchRngRB;
  TComMv          m_acMvPredictors[NUM_MV_PREDICTORS]; // Left, Above, AboveRight. enum MVP_DIR first NUM_MV_PREDICTORS entries are suitable for accessing.

  // RD computation
  TEncSbac***     m_pppcRDSbacCoder;
  TEncSbac*       m_pcRDGoOnSbacCoder;
  DistParam       m_cDistParam;

  // Misc.
  Pel*            m_pTempPel;
  const UInt*     m_puiDFilter;

#if NH_3D_VSO // M17
  TComYuv         m_cYuvRecTemp; 
#endif
  // AMVP cost computation
  // UInt            m_auiMVPIdxCost[AMVP_MAX_NUM_CANDS+1][AMVP_MAX_NUM_CANDS];
  UInt            m_auiMVPIdxCost[AMVP_MAX_NUM_CANDS+1][AMVP_MAX_NUM_CANDS+1]; //th array bounds

  TComMv          m_integerMv2Nx2N[NUM_REF_PIC_LIST_01][MAX_NUM_REF];

public:
  TEncSearch();
  virtual ~TEncSearch();

  Void init(  TEncCfg*      pcEncCfg,
            TComTrQuant*  pcTrQuant,
            Int           iSearchRange,
            Int           bipredSearchRange,
            Int           iFastSearch,
            const UInt    maxCUWidth,
            const UInt    maxCUHeight,
            const UInt    maxTotalCUDepth,
            TEncEntropy*  pcEntropyCoder,
            TComRdCost*   pcRdCost,
            TEncSbac***   pppcRDSbacCoder,
            TEncSbac*     pcRDGoOnSbacCoder );

protected:

  /// sub-function for motion vector refinement used in fractional-pel accuracy
  Distortion  xPatternRefinement( TComPattern* pcPatternKey,
                                  TComMv baseRefMv,
                                  Int iFrac, TComMv& rcMvFrac, Bool bAllowUseOfHadamard
                                 );

  typedef struct
  {
    Pel*        piRefY;
    Int         iYStride;
    Int         iBestX;
    Int         iBestY;
    UInt        uiBestRound;
    UInt        uiBestDistance;
    Distortion  uiBestSad;
    UChar       ucPointNr;
  } IntTZSearchStruct;

  // sub-functions for ME
  __inline Void xTZSearchHelp         ( TComPattern* pcPatternKey, IntTZSearchStruct& rcStruct, const Int iSearchX, const Int iSearchY, const UChar ucPointNr, const UInt uiDistance );
  __inline Void xTZ2PointSearch       ( TComPattern* pcPatternKey, IntTZSearchStruct& rcStrukt, TComMv* pcMvSrchRngLT, TComMv* pcMvSrchRngRB );
  __inline Void xTZ8PointSquareSearch ( TComPattern* pcPatternKey, IntTZSearchStruct& rcStrukt, TComMv* pcMvSrchRngLT, TComMv* pcMvSrchRngRB, const Int iStartX, const Int iStartY, const Int iDist );
  __inline Void xTZ8PointDiamondSearch( TComPattern* pcPatternKey, IntTZSearchStruct& rcStrukt, TComMv* pcMvSrchRngLT, TComMv* pcMvSrchRngRB, const Int iStartX, const Int iStartY, const Int iDist );

  Void xGetInterPredictionError( TComDataCU* pcCU, TComYuv* pcYuvOrg, Int iPartIdx, Distortion& ruiSAD, Bool Hadamard );

public:
  Void  estIntraPredLumaQT      ( TComDataCU* pcCU,
                                  TComYuv*    pcOrgYuv,
                                  TComYuv*    pcPredYuv,
                                  TComYuv*    pcResiYuv,
                                  TComYuv*    pcRecoYuv,
                                  Pel         resiLuma[NUMBER_OF_STORED_RESIDUAL_TYPES][MAX_CU_SIZE * MAX_CU_SIZE]
#if H_3D_DIM
                                , Bool        bOnlyIVP
#endif
                                  DEBUG_STRING_FN_DECLARE(sDebug));

  Void  estIntraPredChromaQT    ( TComDataCU* pcCU,
                                  TComYuv*    pcOrgYuv,
                                  TComYuv*    pcPredYuv,
                                  TComYuv*    pcResiYuv,
                                  TComYuv*    pcRecoYuv,
                                  Pel         resiLuma[NUMBER_OF_STORED_RESIDUAL_TYPES][MAX_CU_SIZE * MAX_CU_SIZE]
                                  DEBUG_STRING_FN_DECLARE(sDebug));
#if H_3D
  Void  estIntraPredDIS        ( TComDataCU* pcCU, 
                                 TComYuv*    pcOrgYuv, 
                                 TComYuv*    pcPredYuv, 
                                 TComYuv*    pcResiYuv, 
                                 TComYuv*    pcRecoYuv,
                                 UInt&       ruiDistC,
                                 Bool        bLumaOnly );
#endif  

  /// encoder estimation - inter prediction (non-skip)
  Void predInterSearch          ( TComDataCU* pcCU,
                                  TComYuv*    pcOrgYuv,
                                  TComYuv*    pcPredYuv,
                                  TComYuv*    pcResiYuv,
                                  TComYuv*    pcRecoYuv
#if H_3D_FAST_TEXTURE_ENCODING
                                  Bool        bFMD,
#endif
                                  DEBUG_STRING_FN_DECLARE(sDebug),
                                  Bool        bUseRes = false
#if AMP_MRG
                                 ,Bool        bUseMRG = false
#endif
                                );

  /// encode residual and compute rd-cost for inter mode
  Void encodeResAndCalcRdInterCU( TComDataCU* pcCU,
                                  TComYuv*    pcYuvOrg,
                                  TComYuv*    pcYuvPred,
                                  TComYuv*    pcYuvResi,
                                  TComYuv*    pcYuvResiBest,
                                  TComYuv*    pcYuvRec,
                                  Bool        bSkipResidual
                                  DEBUG_STRING_FN_DECLARE(sDebug) );
#if H_3D_INTER_SDC
  Void encodeResAndCalcRdInterSDCCU( TComDataCU* pcCU,
    TComYuv* pcOrg, 
    TComYuv* pcPred, 
    TComYuv* pcResi, 
    TComYuv* pcRec, 
    Int      uiOffset,
    const UInt uiDepth );
#endif

  /// set ME search range
  Void setAdaptiveSearchRange   ( Int iDir, Int iRefIdx, Int iSearchRange) { assert(iDir < MAX_NUM_REF_LIST_ADAPT_SR && iRefIdx<Int(MAX_IDX_ADAPT_SR)); m_aaiAdaptSR[iDir][iRefIdx] = iSearchRange; }

  Void xEncPCM    (TComDataCU* pcCU, UInt uiAbsPartIdx, Pel* piOrg, Pel* piPCM, Pel* piPred, Pel* piResi, Pel* piReco, UInt uiStride, UInt uiWidth, UInt uiHeight, const ComponentID compID );
  Void IPCMSearch (TComDataCU* pcCU, TComYuv* pcOrgYuv, TComYuv* rpcPredYuv, TComYuv* rpcResiYuv, TComYuv* rpcRecoYuv );
protected:

  // -------------------------------------------------------------------------------------------------------------------
  // Intra search
  // -------------------------------------------------------------------------------------------------------------------

  Void  xEncSubdivCbfQT           ( TComTU      &rTu,
                                    Bool         bLuma,
                                    Bool         bChroma );

  Void  xEncCoeffQT               ( TComTU &rTu,
                                    ComponentID  component,
                                    Bool         bRealCoeff );
  Void  xEncIntraHeader           ( TComDataCU*  pcCU,
                                    UInt         uiTrDepth,
                                    UInt         uiAbsPartIdx,
                                    Bool         bLuma,
                                    Bool         bChroma );
  UInt  xGetIntraBitsQT           ( TComTU &rTu,
                                    Bool         bLuma,
                                    Bool         bChroma,
                                    Bool         bRealCoeff );

  UInt  xGetIntraBitsQTChroma    ( TComTU &rTu,
                                   ComponentID compID,
                                   Bool          bRealCoeff );

  Void  xIntraCodingTUBlock       (       TComYuv*      pcOrgYuv,
                                          TComYuv*      pcPredYuv,
                                          TComYuv*      pcResiYuv,
                                          Pel           resiLuma[NUMBER_OF_STORED_RESIDUAL_TYPES][MAX_CU_SIZE * MAX_CU_SIZE],
                                    const Bool          checkCrossCPrediction,
#if NH_3D_VSO
                                    Dist&        ruiDist,
#else
                                    Distortion&   ruiDist,
#endif
const ComponentID   compID,
                                          TComTU        &rTu
                                    DEBUG_STRING_FN_DECLARE(sTest)
                                         ,Int           default0Save1Load2 = 0
#if H_3D_DIM_ENC
                                  , Bool          zeroResi = false
#endif
                                   );

  Void  xRecurIntraCodingLumaQT   ( TComYuv*    pcOrgYuv,
                                    TComYuv*    pcPredYuv,
                                    TComYuv*    pcResiYuv,
                                    Pel         resiLuma[NUMBER_OF_STORED_RESIDUAL_TYPES][MAX_CU_SIZE * MAX_CU_SIZE],
#if NH_3D_VSO
                                    Dist&        ruiDistY,
#else
                                    Distortion& ruiDistY,
#endif
#if HHI_RQT_INTRA_SPEEDUP
                                    Bool         bCheckFirst,
#endif
                                    Double&      dRDCost,
#if H_3D_DIM_ENC
                                   , Bool          zeroResi = false
#endif
                                    TComTU      &rTu
                                    DEBUG_STRING_FN_DECLARE(sDebug));

  Void  xSetIntraResultLumaQT     ( TComYuv*     pcRecoYuv,
                                    TComTU &rTu);

  Void xStoreCrossComponentPredictionResult  (       Pel    *pResiLuma,
                                               const Pel    *pBestLuma,
                                                     TComTU &rTu,
                                               const Int     xOffset,
                                               const Int     yOffset,
                                               const Int     strideResi,
                                               const Int     strideBest );

  Char xCalcCrossComponentPredictionAlpha    (       TComTU &rTu,
                                               const ComponentID compID,
                                               const Pel*        piResiL,
                                               const Pel*        piResiC,
                                               const Int         width,
                                               const Int         height,
                                               const Int         strideL,
                                               const Int         strideC );

  Void  xRecurIntraChromaCodingQT ( TComYuv*    pcOrgYuv,
                                    TComYuv*    pcPredYuv,
                                    TComYuv*    pcResiYuv,
                                    Pel         resiLuma[NUMBER_OF_STORED_RESIDUAL_TYPES][MAX_CU_SIZE * MAX_CU_SIZE],
#if NH_3D_VSO
                                    Dist&       ruiDist,
#else
                                    Distortion& ruiDist,
#endif
                                    TComTU      &rTu
                                    DEBUG_STRING_FN_DECLARE(sDebug));

  Void  xSetIntraResultChromaQT   ( TComYuv*    pcRecoYuv, TComTU &rTu);

  Void  xStoreIntraResultQT       ( const ComponentID compID, TComTU &rTu);
  Void  xLoadIntraResultQT        ( const ComponentID compID, TComTU &rTu);
#if H_3D
  Void xIntraCodingDIS           ( TComDataCU* pcCU, UInt uiAbsPartIdx, TComYuv* pcOrgYuv, TComYuv* pcPredYuv, Dist& ruiDist, Double& dRDCost, UInt uiPredMode );
#endif
#if H_3D_DIM
  // -------------------------------------------------------------------------------------------------------------------
  // Depth intra search
  // -------------------------------------------------------------------------------------------------------------------
  Void xCalcBiSegDCs              ( Pel* ptrSrc, UInt srcStride, Bool* biSegPattern, Int patternStride, Pel& valDC1, Pel& valDC2 );
#if H_3D_DIM_DMM
  Void xSearchDmmDeltaDCs         ( TComDataCU* pcCU, UInt uiAbsPtIdx, Pel* piOrig, Pel* piPredic, UInt uiStride, Bool* biSegPattern, Int patternStride, UInt uiWidth, UInt uiHeight, Pel& rDeltaDC1, Pel& rDeltaDC2 );
  Void xSearchDmm1Wedge           ( TComDataCU* pcCU, UInt uiAbsPtIdx, Pel* piRef, UInt uiRefStride, UInt uiWidth, UInt uiHeight, UInt& ruiTabIdx );
#endif
#if H_3D_DIM_SDC
  Void xIntraCodingSDC            ( TComDataCU* pcCU, UInt uiAbsPartIdx, TComYuv* pcOrgYuv, TComYuv* pcPredYuv, Dist& ruiDist, Double& dRDCost, Bool bZeroResidual, Int iSDCDeltaResi    );
#endif
#endif


  // -------------------------------------------------------------------------------------------------------------------
  // Inter search (AMP)
  // -------------------------------------------------------------------------------------------------------------------

  Void xEstimateMvPredAMVP        ( TComDataCU* pcCU,
                                    TComYuv*    pcOrgYuv,
                                    UInt        uiPartIdx,
                                    RefPicList  eRefPicList,
                                    Int         iRefIdx,
                                    TComMv&     rcMvPred,
                                    Bool        bFilled = false
                                  , Distortion* puiDistBiP = NULL
                                     );

  Void xCheckBestMVP              ( TComDataCU* pcCU,
                                    RefPicList  eRefPicList,
                                    TComMv      cMv,
                                    TComMv&     rcMvPred,
                                    Int&        riMVPIdx,
                                    UInt&       ruiBits,
                                    Distortion& ruiCost );

  Distortion xGetTemplateCost    ( TComDataCU*  pcCU,
                                    UInt        uiPartAddr,
                                    TComYuv*    pcOrgYuv,
                                    TComYuv*    pcTemplateCand,
                                    TComMv      cMvCand,
                                    Int         iMVPIdx,
                                    Int         iMVPNum,
                                    RefPicList  eRefPicList,
                                    Int         iRefIdx,
                                    Int         iSizeX,
                                    Int         iSizeY
                                   );


  Void xCopyAMVPInfo              ( AMVPInfo*   pSrc, AMVPInfo* pDst );
  UInt xGetMvpIdxBits             ( Int iIdx, Int iNum );
  Void xGetBlkBits                ( PartSize  eCUMode, Bool bPSlice, Int iPartIdx,  UInt uiLastMode, UInt uiBlkBit[3]);

  Void xMergeEstimation           ( TComDataCU*  pcCU,
                                    TComYuv*     pcYuvOrg,
                                    Int          iPartIdx,
                                    UInt&        uiInterDir,
                                    TComMvField* pacMvField,
                                    UInt&        uiMergeIndex,
                                    Distortion&  ruiCost,
                                    TComMvField* cMvFieldNeighbours,
                                    UChar*       uhInterDirNeighbours,
                                    Int&         numValidMergeCand
#if NH_3D_VSP
                                  , Int* vspFlag
#endif
#if NH_3D_SPIVMP
                                  , Bool* pbSPIVMPFlag, TComMvField* pcMvFieldSP, UChar* puhInterDirSP
#endif
                                   );

  Void xRestrictBipredMergeCand   ( TComDataCU*     pcCU,
                                    UInt            puIdx,
                                    TComMvField*    mvFieldNeighbours,
                                    UChar*          interDirNeighbours,
                                    Int             numValidMergeCand );


  // -------------------------------------------------------------------------------------------------------------------
  // motion estimation
  // -------------------------------------------------------------------------------------------------------------------

  Void xMotionEstimation          ( TComDataCU*  pcCU,
                                    TComYuv*     pcYuvOrg,
                                    Int          iPartIdx,
                                    RefPicList   eRefPicList,
                                    TComMv*      pcMvPred,
                                    Int          iRefIdxPred,
                                    TComMv&      rcMv,
                                    UInt&        ruiBits,
                                    Distortion&  ruiCost,
                                    Bool         bBi = false  );

  Void xTZSearch                  ( TComDataCU*  pcCU,
                                    TComPattern* pcPatternKey,
                                    Pel*         piRefY,
                                    Int          iRefStride,
                                    TComMv*      pcMvSrchRngLT,
                                    TComMv*      pcMvSrchRngRB,
                                    TComMv&      rcMv,
                                    Distortion&  ruiSAD,
                                    const TComMv *pIntegerMv2Nx2NPred
                                    );

  Void xTZSearchSelective         ( TComDataCU*  pcCU,
                                    TComPattern* pcPatternKey,
                                    Pel*         piRefY,
                                    Int          iRefStride,
                                    TComMv*      pcMvSrchRngLT,
                                    TComMv*      pcMvSrchRngRB,
                                    TComMv&      rcMv,
                                    Distortion&  ruiSAD,
                                    const TComMv *pIntegerMv2Nx2NPred
                                    );

  Void xSetSearchRange            ( TComDataCU*  pcCU,
                                    TComMv&      cMvPred,
                                    Int          iSrchRng,
                                    TComMv&      rcMvSrchRngLT,
                                    TComMv&      rcMvSrchRngRB );

  Void xPatternSearchFast         ( TComDataCU*  pcCU,
                                    TComPattern* pcPatternKey,
                                    Pel*         piRefY,
                                    Int          iRefStride,
                                    TComMv*      pcMvSrchRngLT,
                                    TComMv*      pcMvSrchRngRB,
                                    TComMv&      rcMv,
                                    Distortion&  ruiSAD,
                                    const TComMv* pIntegerMv2Nx2NPred
                                  );

  Void xPatternSearch             ( TComPattern* pcPatternKey,
                                    Pel*         piRefY,
                                    Int          iRefStride,
                                    TComMv*      pcMvSrchRngLT,
                                    TComMv*      pcMvSrchRngRB,
                                    TComMv&      rcMv,
                                    Distortion&  ruiSAD );

  Void xPatternSearchFracDIF      (
                                    Bool         bIsLosslessCoded,
                                    TComPattern* pcPatternKey,
                                    Pel*         piRefY,
                                    Int          iRefStride,
                                    TComMv*      pcMvInt,
                                    TComMv&      rcMvHalf,
                                    TComMv&      rcMvQter,
                                    Distortion&  ruiCost
                                   );

  Void xExtDIFUpSamplingH( TComPattern* pcPattern );
  Void xExtDIFUpSamplingQ( TComPattern* pcPatternKey, TComMv halfPelRef );

  // -------------------------------------------------------------------------------------------------------------------
  // T & Q & Q-1 & T-1
  // -------------------------------------------------------------------------------------------------------------------

  Void xEncodeInterResidualQT( const ComponentID compID, TComTU &rTu );
#if NH_3D_VSO // M26
  Void xEstimateInterResidualQT( TComYuv* pcResi, TComYuv* pcOrg, TComYuv* pcPred,  Double &rdCost, UInt &ruiBits, Dist       &ruiDist, Dist       *puiZeroDist, TComTU &rTu DEBUG_STRING_FN_DECLARE(sDebug) );
#else
  Void xEstimateInterResidualQT( TComYuv* pcResi                                  , Double &rdCost, UInt &ruiBits, Distortion &ruiDist, Distortion *puiZeroDist, TComTU &rTu DEBUG_STRING_FN_DECLARE(sDebug) );
#endif
  Void xSetInterResidualQTData( TComYuv* pcResi, Bool bSpatial, TComTU &rTu  );

  UInt  xModeBitsIntra ( TComDataCU* pcCU, UInt uiMode, UInt uiPartOffset, UInt uiDepth, const ChannelType compID );
  UInt  xUpdateCandList( UInt uiMode, Double uiCost, UInt uiFastCandNum, UInt * CandModeList, Double * CandCostList );

  // -------------------------------------------------------------------------------------------------------------------
  // compute symbol bits
  // -------------------------------------------------------------------------------------------------------------------

  Void xAddSymbolBitsInter       ( TComDataCU*   pcCU,
                                   UInt&         ruiBits);

  Void  setWpScalingDistParam( TComDataCU* pcCU, Int iRefIdx, RefPicList eRefPicListCur );
  inline  Void  setDistParamComp( ComponentID compIdx )  { m_cDistParam.compIdx = compIdx; }

};// END CLASS DEFINITION TEncSearch

//! \}

#endif // __TENCSEARCH__