source: 3DVCSoftware/branches/HTM-16.0-MV-draft-5/source/Lib/TLibCommon/TComRdCost.h

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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// ====================================================================================================================
64// Class definition
65// ====================================================================================================================
66
67/// distortion parameter class
68class DistParam
69{
70public:
71  const Pel*            pOrg;
72  const Pel*            pCur;
73  Int   iStrideOrg;
74  Int   iStrideCur;
75  Int   iRows;
76  Int   iCols;
77  Int   iStep;
78  FpDistFunc DistFunc;
79  Int   bitDepth;
80
81  Bool            bApplyWeight;     // whether weighted prediction is used or not
82  Bool                  bIsBiPred;
83
84  const WPScalingParam *wpCur;           // weighted prediction scaling parameters for current ref
85  ComponentID     compIdx;
86  Distortion            m_maximumDistortionForEarlyExit; /// During cost calculations, if distortion exceeds this value, cost calculations may early-terminate.
87
88  // (vertical) subsampling shift (for reducing complexity)
89  // - 0 = no subsampling, 1 = even rows, 2 = every 4th, etc.
90  Int   iSubShift;
91
92  DistParam()
93   : pOrg(NULL),
94     pCur(NULL),
95     iStrideOrg(0),
96     iStrideCur(0),
97     iRows(0),
98     iCols(0),
99     iStep(1),
100     DistFunc(NULL),
101     bitDepth(0),
102     bApplyWeight(false),
103     bIsBiPred(false),
104     wpCur(NULL),
105     compIdx(MAX_NUM_COMPONENT),
106     m_maximumDistortionForEarlyExit(std::numeric_limits<Distortion>::max()),
107     iSubShift(0)
108  {
109  }
110};
111
112/// RD cost computation class
113class TComRdCost
114{
115private:
116  // for distortion
117
118  FpDistFunc              m_afpDistortFunc[DF_TOTAL_FUNCTIONS]; // [eDFunc]
119  CostMode                m_costMode;
120  Double                  m_distortionWeight[MAX_NUM_COMPONENT]; // only chroma values are used.
121  Double                  m_dLambda;
122  Double                  m_sqrtLambda;
123  Double                  m_dLambdaMotionSAD[2 /* 0=standard, 1=for transquant bypass when mixed-lossless cost evaluation enabled*/];
124  Double                  m_dLambdaMotionSSE[2 /* 0=standard, 1=for transquant bypass when mixed-lossless cost evaluation enabled*/];
125  Double                  m_dFrameLambda;
126
127  // for motion cost
128  TComMv                  m_mvPredictor;
129  Double                  m_motionLambda;
130  Int                     m_iCostScale;
131
132public:
133  TComRdCost();
134  virtual ~TComRdCost();
135  Double calcRdCost( Double numBits, Double distortion, DFunc eDFunc = DF_DEFAULT );
136
137
138  Void    setDistortionWeight  ( const ComponentID compID, const Double distortionWeight ) { m_distortionWeight[compID] = distortionWeight; }
139  Void    setLambda      ( Double dLambda, const BitDepths &bitDepths );
140  Void    setFrameLambda ( Double dLambda ) { m_dFrameLambda = dLambda; }
141
142  Double  getSqrtLambda ()   { return m_sqrtLambda; }
143
144  Double  getLambda() { return m_dLambda; }
145  Double  getChromaWeight () { return ((m_distortionWeight[COMPONENT_Cb] + m_distortionWeight[COMPONENT_Cr]) / 2.0); }
146
147  Void    setCostMode(CostMode   m )    { m_costMode = m; }
148
149  // Distortion Functions
150  Void    init();
151
152  Void    setDistParam( UInt uiBlkWidth, UInt uiBlkHeight, DFunc eDFunc, DistParam& rcDistParam );
153  Void    setDistParam( const TComPattern* const pcPatternKey, const Pel* piRefY, Int iRefStride,            DistParam& rcDistParam );
154  Void    setDistParam( const TComPattern* const pcPatternKey, const Pel* piRefY, Int iRefStride, Int iStep, DistParam& rcDistParam, Bool bHADME=false );
155  Void    setDistParam( DistParam& rcDP, Int bitDepth, const Pel* p1, Int iStride1, const Pel* p2, Int iStride2, Int iWidth, Int iHeight, Bool bHadamard = false );
156
157
158  Distortion calcHAD(Int bitDepth, const Pel* pi0, Int iStride0, const Pel* pi1, Int iStride1, Int iWidth, Int iHeight );
159
160
161  // for motion cost
162  static UInt    xGetExpGolombNumberOfBits( Int iVal );
163  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); }
164  Void    setPredictor( TComMv& rcMv )
165  {
166    m_mvPredictor = rcMv;
167  }
168  Void    setCostScale( Int iCostScale )    { m_iCostScale = iCostScale; }
169  Distortion getCost( UInt b )                 { return Distortion(( m_motionLambda * b ) / 65536.0); }
170  Distortion getCostOfVectorWithPredictor( const Int x, const Int y )
171  {
172    return Distortion((m_motionLambda * getBitsOfVectorWithPredictor(x, y)) / 65536.0);
173  }
174  UInt getBitsOfVectorWithPredictor( const Int x, const Int y )
175  {
176    return xGetExpGolombNumberOfBits((x << m_iCostScale) - m_mvPredictor.getHor())
177    +      xGetExpGolombNumberOfBits((y << m_iCostScale) - m_mvPredictor.getVer());
178  }
179
180private:
181
182  static Distortion xGetSSE           ( DistParam* pcDtParam );
183  static Distortion xGetSSE4          ( DistParam* pcDtParam );
184  static Distortion xGetSSE8          ( DistParam* pcDtParam );
185  static Distortion xGetSSE16         ( DistParam* pcDtParam );
186  static Distortion xGetSSE32         ( DistParam* pcDtParam );
187  static Distortion xGetSSE64         ( DistParam* pcDtParam );
188  static Distortion xGetSSE16N        ( DistParam* pcDtParam );
189
190  static Distortion xGetSAD           ( DistParam* pcDtParam );
191  static Distortion xGetSAD4          ( DistParam* pcDtParam );
192  static Distortion xGetSAD8          ( DistParam* pcDtParam );
193  static Distortion xGetSAD16         ( DistParam* pcDtParam );
194  static Distortion xGetSAD32         ( DistParam* pcDtParam );
195  static Distortion xGetSAD64         ( DistParam* pcDtParam );
196  static Distortion xGetSAD16N        ( DistParam* pcDtParam );
197
198
199  static Distortion xGetSAD12         ( DistParam* pcDtParam );
200  static Distortion xGetSAD24         ( DistParam* pcDtParam );
201  static Distortion xGetSAD48         ( DistParam* pcDtParam );
202
203
204
205  static Distortion xGetHADs          ( DistParam* pcDtParam );
206  static Distortion xCalcHADs2x2      ( const Pel *piOrg, const Pel *piCurr, Int iStrideOrg, Int iStrideCur, Int iStep );
207  static Distortion xCalcHADs4x4      ( const Pel *piOrg, const Pel *piCurr, Int iStrideOrg, Int iStrideCur, Int iStep );
208  static Distortion xCalcHADs8x8      ( const Pel *piOrg, const Pel *piCurr, Int iStrideOrg, Int iStrideCur, Int iStep );
209
210
211public:
212
213  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 );
214
215
216
217
218};// END CLASS DEFINITION TComRdCost
219
220//! \}
221
222#endif // __TCOMRDCOST__
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