[5] | 1 | /* The copyright in this software is being made available under the BSD |
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| 2 | * License, included below. This software may be subject to other third party |
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| 3 | * and contributor rights, including patent rights, and no such rights are |
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[1313] | 4 | * granted under this license. |
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[5] | 5 | * |
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[1313] | 6 | * Copyright (c) 2010-2015, ITU/ISO/IEC |
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[5] | 7 | * All rights reserved. |
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| 8 | * |
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| 9 | * Redistribution and use in source and binary forms, with or without |
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| 10 | * modification, are permitted provided that the following conditions are met: |
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| 11 | * |
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| 12 | * * Redistributions of source code must retain the above copyright notice, |
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| 13 | * this list of conditions and the following disclaimer. |
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| 14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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| 15 | * this list of conditions and the following disclaimer in the documentation |
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| 16 | * and/or other materials provided with the distribution. |
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[56] | 17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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[5] | 18 | * be used to endorse or promote products derived from this software without |
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| 19 | * specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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| 25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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| 31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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| 32 | */ |
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[2] | 33 | |
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| 34 | /** \file TComLoopFilter.h |
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| 35 | \brief deblocking filter (header) |
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| 36 | */ |
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| 37 | |
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| 38 | #ifndef __TCOMLOOPFILTER__ |
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| 39 | #define __TCOMLOOPFILTER__ |
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| 40 | |
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| 41 | #include "CommonDef.h" |
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| 42 | #include "TComPic.h" |
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| 43 | |
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[56] | 44 | //! \ingroup TLibCommon |
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| 45 | //! \{ |
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| 46 | |
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[2] | 47 | #define DEBLOCK_SMALLEST_BLOCK 8 |
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| 48 | |
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| 49 | // ==================================================================================================================== |
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| 50 | // Class definition |
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| 51 | // ==================================================================================================================== |
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| 52 | |
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| 53 | /// deblocking filter class |
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| 54 | class TComLoopFilter |
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| 55 | { |
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| 56 | private: |
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[1313] | 57 | |
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[2] | 58 | UInt m_uiNumPartitions; |
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[1313] | 59 | UChar* m_aapucBS[NUM_EDGE_DIR]; ///< Bs for [Ver/Hor][Y/U/V][Blk_Idx] |
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| 60 | Bool* m_aapbEdgeFilter[NUM_EDGE_DIR]; |
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| 61 | LFCUParam m_stLFCUParam; ///< status structure |
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| 62 | |
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[56] | 63 | Bool m_bLFCrossTileBoundary; |
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| 64 | |
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[2] | 65 | protected: |
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| 66 | /// CU-level deblocking function |
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[1313] | 67 | Void xDeblockCU ( TComDataCU* pcCU, UInt uiAbsZorderIdx, UInt uiDepth, DeblockEdgeDir edgeDir ); |
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[2] | 68 | |
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| 69 | // set / get functions |
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| 70 | Void xSetLoopfilterParam ( TComDataCU* pcCU, UInt uiAbsZorderIdx ); |
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| 71 | // filtering functions |
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[1313] | 72 | Void xSetEdgefilterTU ( TComTU &rTu ); |
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[2] | 73 | Void xSetEdgefilterPU ( TComDataCU* pcCU, UInt uiAbsZorderIdx ); |
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[1313] | 74 | Void xGetBoundaryStrengthSingle ( TComDataCU* pCtu, DeblockEdgeDir edgeDir, UInt uiPartIdx ); |
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| 75 | UInt xCalcBsIdx ( TComDataCU* pcCU, UInt absZIdxInCtu, DeblockEdgeDir edgeDir, Int iEdgeIdx, Int iBaseUnitIdx, const struct TComRectangle *rect=NULL ) |
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[2] | 76 | { |
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| 77 | TComPic* const pcPic = pcCU->getPic(); |
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[1313] | 78 | const UInt ctuWidthInBaseUnits = pcPic->getNumPartInCtuWidth(); |
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| 79 | Int rasterOffsetTU=0; |
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| 80 | if (rect != NULL) |
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[608] | 81 | { |
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[1313] | 82 | const UInt minCuWidth =pcPic->getMinCUWidth(); |
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| 83 | const UInt minCuHeight=pcPic->getMinCUHeight(); |
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| 84 | rasterOffsetTU = rect->x0/minCuWidth + (rect->y0/minCuHeight)*ctuWidthInBaseUnits; |
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[608] | 85 | } |
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[1313] | 86 | if( edgeDir == EDGE_VER ) |
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| 87 | { |
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| 88 | return g_auiRasterToZscan[g_auiZscanToRaster[absZIdxInCtu] + iBaseUnitIdx * ctuWidthInBaseUnits + iEdgeIdx + rasterOffsetTU ]; |
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| 89 | } |
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[2] | 90 | else |
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[608] | 91 | { |
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[1313] | 92 | return g_auiRasterToZscan[g_auiZscanToRaster[absZIdxInCtu] + iEdgeIdx * ctuWidthInBaseUnits + iBaseUnitIdx + rasterOffsetTU ]; |
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[608] | 93 | } |
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[1313] | 94 | } |
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[2] | 95 | |
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[1313] | 96 | Void xSetEdgefilterMultiple( TComDataCU* pcCU, |
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| 97 | UInt uiAbsZorderIdx, |
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| 98 | UInt uiDepth, |
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| 99 | DeblockEdgeDir edgeDir, |
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| 100 | Int iEdgeIdx, |
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| 101 | Bool bValue, |
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| 102 | UInt uiWidthInBaseUnits = 0, |
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| 103 | UInt uiHeightInBaseUnits = 0, |
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| 104 | const TComRectangle *rect = 0 |
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| 105 | ); |
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| 106 | |
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| 107 | Void xEdgeFilterLuma ( TComDataCU* const pcCU, const UInt uiAbsZorderIdx, const UInt uiDepth, const DeblockEdgeDir edgeDir, const Int iEdge ); |
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| 108 | Void xEdgeFilterChroma ( TComDataCU* const pcCU, const UInt uiAbsZorderIdx, const UInt uiDepth, const DeblockEdgeDir edgeDir, const Int iEdge ); |
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| 109 | |
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| 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); |
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| 111 | __inline Void xPelFilterChroma( Pel* piSrc, Int iOffset, Int tc, Bool bPartPNoFilter, Bool bPartQNoFilter, const Int bitDepthChroma); |
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| 112 | |
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| 113 | |
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[56] | 114 | __inline Bool xUseStrongFiltering( Int offset, Int d, Int beta, Int tc, Pel* piSrc); |
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| 115 | __inline Int xCalcDP( Pel* piSrc, Int iOffset); |
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| 116 | __inline Int xCalcDQ( Pel* piSrc, Int iOffset); |
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[1313] | 117 | |
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[608] | 118 | static const UChar sm_tcTable[54]; |
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| 119 | static const UChar sm_betaTable[52]; |
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| 120 | |
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[2] | 121 | public: |
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| 122 | TComLoopFilter(); |
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| 123 | virtual ~TComLoopFilter(); |
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[1313] | 124 | |
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[2] | 125 | Void create ( UInt uiMaxCUDepth ); |
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| 126 | Void destroy (); |
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[1313] | 127 | |
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[2] | 128 | /// set configuration |
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[608] | 129 | Void setCfg( Bool bLFCrossTileBoundary ); |
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[1313] | 130 | |
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[2] | 131 | /// picture-level deblocking filter |
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| 132 | Void loopFilterPic( TComPic* pcPic ); |
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[608] | 133 | |
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| 134 | static Int getBeta( Int qp ) |
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| 135 | { |
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| 136 | Int indexB = Clip3( 0, MAX_QP, qp ); |
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| 137 | return sm_betaTable[ indexB ]; |
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| 138 | } |
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[2] | 139 | }; |
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| 140 | |
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[56] | 141 | //! \} |
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| 142 | |
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[2] | 143 | #endif |
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