source: 3DVCSoftware/trunk/source/Lib/TLibCommon/TComLoopFilter.h @ 1413

Last change on this file since 1413 was 1413, checked in by tech, 6 years ago

Merged HTM-16.2-dev@1412

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1/* The copyright in this software is being made available under the BSD
2 * License, included below. This software may be subject to other third party
3 * and contributor rights, including patent rights, and no such rights are
4 * granted under this license.
5 *
6 * Copyright (c) 2010-2017, ITU/ISO/IEC
7 * All rights reserved.
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions are met:
11 *
12 *  * Redistributions of source code must retain the above copyright notice,
13 *    this list of conditions and the following disclaimer.
14 *  * Redistributions in binary form must reproduce the above copyright notice,
15 *    this list of conditions and the following disclaimer in the documentation
16 *    and/or other materials provided with the distribution.
17 *  * Neither the name of the ITU/ISO/IEC nor the names of its contributors may
18 *    be used to endorse or promote products derived from this software without
19 *    specific prior written permission.
20 *
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
22 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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25 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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28 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
29 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
30 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
31 * THE POSSIBILITY OF SUCH DAMAGE.
32 */
33
34/** \file     TComLoopFilter.h
35    \brief    deblocking filter (header)
36*/
37
38#ifndef __TCOMLOOPFILTER__
39#define __TCOMLOOPFILTER__
40
41#include "CommonDef.h"
42#include "TComPic.h"
43
44//! \ingroup TLibCommon
45//! \{
46
47#define DEBLOCK_SMALLEST_BLOCK  8
48
49// ====================================================================================================================
50// Class definition
51// ====================================================================================================================
52
53/// deblocking filter class
54class TComLoopFilter
55{
56private:
57
58  UInt      m_uiNumPartitions;
59  UChar*    m_aapucBS[NUM_EDGE_DIR];         ///< Bs for [Ver/Hor][Y/U/V][Blk_Idx]
60  Bool*     m_aapbEdgeFilter[NUM_EDGE_DIR];
61  LFCUParam m_stLFCUParam;                   ///< status structure
62
63  Bool      m_bLFCrossTileBoundary;
64
65protected:
66  /// CU-level deblocking function
67  Void xDeblockCU                 ( TComDataCU* pcCU, UInt uiAbsZorderIdx, UInt uiDepth, DeblockEdgeDir edgeDir );
68
69  // set / get functions
70  Void xSetLoopfilterParam        ( TComDataCU* pcCU, UInt uiAbsZorderIdx );
71  // filtering functions
72  Void xSetEdgefilterTU           ( TComTU &rTu );
73  Void xSetEdgefilterPU           ( TComDataCU* pcCU, UInt uiAbsZorderIdx );
74  Void xGetBoundaryStrengthSingle ( TComDataCU* pCtu, DeblockEdgeDir edgeDir, UInt uiPartIdx );
75  UInt xCalcBsIdx                 ( TComDataCU* pcCU, UInt absZIdxInCtu, DeblockEdgeDir edgeDir, Int iEdgeIdx, Int iBaseUnitIdx, const struct TComRectangle *rect=NULL )
76  {
77    TComPic* const pcPic = pcCU->getPic();
78    const UInt ctuWidthInBaseUnits = pcPic->getNumPartInCtuWidth();
79    Int rasterOffsetTU=0;
80    if (rect != NULL)
81    {
82      const UInt minCuWidth =pcPic->getMinCUWidth();
83      const UInt minCuHeight=pcPic->getMinCUHeight();
84      rasterOffsetTU = rect->x0/minCuWidth + (rect->y0/minCuHeight)*ctuWidthInBaseUnits;
85    }
86    if( edgeDir == EDGE_VER )
87    {
88      return g_auiRasterToZscan[g_auiZscanToRaster[absZIdxInCtu] + iBaseUnitIdx * ctuWidthInBaseUnits + iEdgeIdx + rasterOffsetTU ];
89    }
90    else
91    {
92      return g_auiRasterToZscan[g_auiZscanToRaster[absZIdxInCtu] + iEdgeIdx * ctuWidthInBaseUnits + iBaseUnitIdx + rasterOffsetTU ];
93    }
94  }
95
96  Void xSetEdgefilterMultiple( TComDataCU* pcCU,
97                               UInt uiAbsZorderIdx,
98                               UInt uiDepth,
99                               DeblockEdgeDir edgeDir,
100                               Int iEdgeIdx,
101                               Bool bValue,
102                               UInt uiWidthInBaseUnits = 0,
103                               UInt uiHeightInBaseUnits = 0,
104                               const TComRectangle *rect = 0
105                               );
106
107  Void xEdgeFilterLuma            ( TComDataCU* const pcCU, const UInt uiAbsZorderIdx, const UInt uiDepth, const DeblockEdgeDir edgeDir, const Int iEdge );
108  Void xEdgeFilterChroma          ( TComDataCU* const pcCU, const UInt uiAbsZorderIdx, const UInt uiDepth, const DeblockEdgeDir edgeDir, const Int iEdge );
109
110  __inline Void xPelFilterLuma( Pel* piSrc, Int iOffset, Int tc, Bool sw, Bool bPartPNoFilter, Bool bPartQNoFilter, Int iThrCut, Bool bFilterSecondP, Bool bFilterSecondQ, const Int bitDepthLuma);
111  __inline Void xPelFilterChroma( Pel* piSrc, Int iOffset, Int tc, Bool bPartPNoFilter, Bool bPartQNoFilter, const Int bitDepthChroma);
112
113
114  __inline Bool xUseStrongFiltering( Int offset, Int d, Int beta, Int tc, Pel* piSrc);
115  __inline Int xCalcDP( Pel* piSrc, Int iOffset);
116  __inline Int xCalcDQ( Pel* piSrc, Int iOffset);
117
118  static const UChar sm_tcTable[54];
119  static const UChar sm_betaTable[52];
120
121public:
122  TComLoopFilter();
123  virtual ~TComLoopFilter();
124
125  Void  create                    ( UInt uiMaxCUDepth );
126  Void  destroy                   ();
127
128  /// set configuration
129  Void setCfg( Bool bLFCrossTileBoundary );
130
131  /// picture-level deblocking filter
132  Void loopFilterPic( TComPic* pcPic );
133
134  static Int getBeta( Int qp )
135  {
136    Int indexB = Clip3( 0, MAX_QP, qp );
137    return sm_betaTable[ indexB ];
138  }
139};
140
141//! \}
142
143#endif
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