source: SHVCSoftware/branches/SHM-dev/source/Lib/TLibCommon/TComRdCost.h @ 1497

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1/* The copyright in this software is being made available under the BSD
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33
34/** \file     TComRdCost.h
35    \brief    RD cost computation classes (header)
36*/
37
38#ifndef __TCOMRDCOST__
39#define __TCOMRDCOST__
40
41
42#include "CommonDef.h"
43#include "TComPattern.h"
44#include "TComMv.h"
45
46#include "TComSlice.h"
47#include "TComRdCostWeightPrediction.h"
48
49//! \ingroup TLibCommon
50//! \{
51
52class DistParam;
53class TComPattern;
54
55// ====================================================================================================================
56// Type definition
57// ====================================================================================================================
58
59// for function pointer
60typedef Distortion (*FpDistFunc) (DistParam*); // TODO: can this pointer be replaced with a reference? - there are no NULL checks on pointer.
61
62// ====================================================================================================================
63// Class definition
64// ====================================================================================================================
65
66/// distortion parameter class
67class DistParam
68{
69public:
70  const Pel*            pOrg;
71  const Pel*            pCur;
72  Int                   iStrideOrg;
73  Int                   iStrideCur;
74  Int                   iRows;
75  Int                   iCols;
76  Int                   iStep;
77  FpDistFunc            DistFunc;
78  Int                   bitDepth;
79
80  Bool                  bApplyWeight;     // whether weighted prediction is used or not
81  Bool                  bIsBiPred;
82
83  const WPScalingParam *wpCur;           // weighted prediction scaling parameters for current ref
84  ComponentID           compIdx;
85  Distortion            m_maximumDistortionForEarlyExit; /// During cost calculations, if distortion exceeds this value, cost calculations may early-terminate.
86
87  // (vertical) subsampling shift (for reducing complexity)
88  // - 0 = no subsampling, 1 = even rows, 2 = every 4th, etc.
89  Int             iSubShift;
90
91  DistParam()
92   : pOrg(NULL),
93     pCur(NULL),
94     iStrideOrg(0),
95     iStrideCur(0),
96     iRows(0),
97     iCols(0),
98     iStep(1),
99     DistFunc(NULL),
100     bitDepth(0),
101     bApplyWeight(false),
102     bIsBiPred(false),
103     wpCur(NULL),
104     compIdx(MAX_NUM_COMPONENT),
105     m_maximumDistortionForEarlyExit(std::numeric_limits<Distortion>::max()),
106     iSubShift(0)
107  { }
108};
109
110/// RD cost computation class
111class TComRdCost
112{
113private:
114  // for distortion
115
116  FpDistFunc              m_afpDistortFunc[DF_TOTAL_FUNCTIONS]; // [eDFunc]
117  CostMode                m_costMode;
118  Double                  m_distortionWeight[MAX_NUM_COMPONENT]; // only chroma values are used.
119  Double                  m_dLambda;
120  Double                  m_sqrtLambda;
121  Double                  m_dLambdaMotionSAD[2 /* 0=standard, 1=for transquant bypass when mixed-lossless cost evaluation enabled*/];
122  Double                  m_dLambdaMotionSSE[2 /* 0=standard, 1=for transquant bypass when mixed-lossless cost evaluation enabled*/];
123  Double                  m_dFrameLambda;
124
125  // for motion cost
126  TComMv                  m_mvPredictor;
127  Double                  m_motionLambda;
128  Int                     m_iCostScale;
129
130public:
131  TComRdCost();
132  virtual ~TComRdCost();
133
134  Double calcRdCost( Double numBits, Double distortion, DFunc eDFunc = DF_DEFAULT );
135
136  Void    setDistortionWeight  ( const ComponentID compID, const Double distortionWeight ) { m_distortionWeight[compID] = distortionWeight; }
137  Void    setLambda      ( Double dLambda, const BitDepths &bitDepths );
138  Void    setFrameLambda ( Double dLambda ) { m_dFrameLambda = dLambda; }
139
140  Double  getSqrtLambda ()   { return m_sqrtLambda; }
141
142  Double  getLambda() { return m_dLambda; }
143  Double  getChromaWeight () { return ((m_distortionWeight[COMPONENT_Cb] + m_distortionWeight[COMPONENT_Cr]) / 2.0); }
144
145  Void    setCostMode(CostMode   m )    { m_costMode = m; }
146
147  // Distortion Functions
148  Void    init();
149
150  Void    setDistParam( UInt uiBlkWidth, UInt uiBlkHeight, DFunc eDFunc, DistParam& rcDistParam );
151  Void    setDistParam( const TComPattern* const pcPatternKey, const Pel* piRefY, Int iRefStride,            DistParam& rcDistParam );
152  Void    setDistParam( const TComPattern* const pcPatternKey, const Pel* piRefY, Int iRefStride, Int iStep, DistParam& rcDistParam, Bool bHADME=false );
153  Void    setDistParam( DistParam& rcDP, Int bitDepth, const Pel* p1, Int iStride1, const Pel* p2, Int iStride2, Int iWidth, Int iHeight, Bool bHadamard = false );
154
155  Distortion calcHAD(Int bitDepth, const Pel* pi0, Int iStride0, const Pel* pi1, Int iStride1, Int iWidth, Int iHeight );
156
157  // for motion cost
158  static UInt    xGetExpGolombNumberOfBits( Int iVal );
159  Void    selectMotionLambda( Bool bSad, Int iAdd, Bool bIsTransquantBypass ) { m_motionLambda = (bSad ? m_dLambdaMotionSAD[(bIsTransquantBypass && m_costMode==COST_MIXED_LOSSLESS_LOSSY_CODING) ?1:0] + iAdd : m_dLambdaMotionSSE[(bIsTransquantBypass && m_costMode==COST_MIXED_LOSSLESS_LOSSY_CODING)?1:0] + iAdd); }
160  Void    setPredictor( TComMv& rcMv )
161  {
162    m_mvPredictor = rcMv;
163  }
164  Void    setCostScale( Int iCostScale )    { m_iCostScale = iCostScale; }
165  Distortion getCost( UInt b )                 { return Distortion(( m_motionLambda * b ) / 65536.0); }
166  Distortion getCostOfVectorWithPredictor( const Int x, const Int y )
167  {
168    return Distortion((m_motionLambda * getBitsOfVectorWithPredictor(x, y)) / 65536.0);
169  }
170  UInt getBitsOfVectorWithPredictor( const Int x, const Int y )
171  {
172    return xGetExpGolombNumberOfBits((x << m_iCostScale) - m_mvPredictor.getHor())
173    +      xGetExpGolombNumberOfBits((y << m_iCostScale) - m_mvPredictor.getVer());
174  }
175
176private:
177
178  static Distortion xGetSSE           ( DistParam* pcDtParam );
179  static Distortion xGetSSE4          ( DistParam* pcDtParam );
180  static Distortion xGetSSE8          ( DistParam* pcDtParam );
181  static Distortion xGetSSE16         ( DistParam* pcDtParam );
182  static Distortion xGetSSE32         ( DistParam* pcDtParam );
183  static Distortion xGetSSE64         ( DistParam* pcDtParam );
184  static Distortion xGetSSE16N        ( DistParam* pcDtParam );
185
186  static Distortion xGetSAD           ( DistParam* pcDtParam );
187  static Distortion xGetSAD4          ( DistParam* pcDtParam );
188  static Distortion xGetSAD8          ( DistParam* pcDtParam );
189  static Distortion xGetSAD16         ( DistParam* pcDtParam );
190  static Distortion xGetSAD32         ( DistParam* pcDtParam );
191  static Distortion xGetSAD64         ( DistParam* pcDtParam );
192  static Distortion xGetSAD16N        ( DistParam* pcDtParam );
193
194  static Distortion xGetSAD12         ( DistParam* pcDtParam );
195  static Distortion xGetSAD24         ( DistParam* pcDtParam );
196  static Distortion xGetSAD48         ( DistParam* pcDtParam );
197
198  static Distortion xGetHADs          ( DistParam* pcDtParam );
199  static Distortion xCalcHADs2x2      ( const Pel *piOrg, const Pel *piCurr, Int iStrideOrg, Int iStrideCur, Int iStep );
200  static Distortion xCalcHADs4x4      ( const Pel *piOrg, const Pel *piCurr, Int iStrideOrg, Int iStrideCur, Int iStep );
201  static Distortion xCalcHADs8x8      ( const Pel *piOrg, const Pel *piCurr, Int iStrideOrg, Int iStrideCur, Int iStep );
202
203
204public:
205
206  Distortion   getDistPart(Int bitDepth, const Pel* piCur, Int iCurStride, const Pel* piOrg, Int iOrgStride, UInt uiBlkWidth, UInt uiBlkHeight, const ComponentID compID, DFunc eDFunc = DF_SSE );
207
208};// END CLASS DEFINITION TComRdCost
209
210//! \}
211
212#endif // __TCOMRDCOST__
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