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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4 | * granted under this license. |
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5 | * |
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6 | * Copyright (c) 2010-2017, ITU/ISO/IEC |
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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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17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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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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33 | |
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34 | /** \file TComLoopFilter.cpp |
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35 | \brief deblocking filter |
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36 | */ |
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37 | |
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38 | #include "TComLoopFilter.h" |
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39 | #include "TComSlice.h" |
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40 | #include "TComMv.h" |
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41 | #include "TComTU.h" |
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42 | |
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43 | //! \ingroup TLibCommon |
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44 | //! \{ |
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45 | |
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46 | // ==================================================================================================================== |
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47 | // Constants |
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48 | // ==================================================================================================================== |
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49 | |
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50 | //#define EDGE_VER 0 |
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51 | //#define EDGE_HOR 1 |
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52 | |
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53 | #define DEFAULT_INTRA_TC_OFFSET 2 ///< Default intra TC offset |
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54 | |
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55 | // ==================================================================================================================== |
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56 | // Tables |
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57 | // ==================================================================================================================== |
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58 | |
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59 | const UChar TComLoopFilter::sm_tcTable[MAX_QP + 1 + DEFAULT_INTRA_TC_OFFSET] = |
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60 | { |
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61 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,1,1,1,1,1,1,1,1,1,2,2,2,2,3,3,3,3,4,4,4,5,5,6,6,7,8,9,10,11,13,14,16,18,20,22,24 |
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62 | }; |
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63 | |
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64 | const UChar TComLoopFilter::sm_betaTable[MAX_QP + 1] = |
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65 | { |
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66 | 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,6,7,8,9,10,11,12,13,14,15,16,17,18,20,22,24,26,28,30,32,34,36,38,40,42,44,46,48,50,52,54,56,58,60,62,64 |
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67 | }; |
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68 | |
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69 | // ==================================================================================================================== |
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70 | // Constructor / destructor / create / destroy |
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71 | // ==================================================================================================================== |
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72 | |
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73 | TComLoopFilter::TComLoopFilter() |
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74 | : m_uiNumPartitions(0) |
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75 | , m_bLFCrossTileBoundary(true) |
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76 | { |
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77 | for( Int edgeDir = 0; edgeDir < NUM_EDGE_DIR; edgeDir++ ) |
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78 | { |
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79 | m_aapucBS [edgeDir] = NULL; |
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80 | m_aapbEdgeFilter[edgeDir] = NULL; |
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81 | } |
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82 | } |
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83 | |
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84 | TComLoopFilter::~TComLoopFilter() |
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85 | { |
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86 | } |
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87 | |
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88 | // ==================================================================================================================== |
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89 | // Public member functions |
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90 | // ==================================================================================================================== |
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91 | Void TComLoopFilter::setCfg( Bool bLFCrossTileBoundary ) |
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92 | { |
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93 | m_bLFCrossTileBoundary = bLFCrossTileBoundary; |
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94 | } |
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95 | |
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96 | Void TComLoopFilter::create( UInt uiMaxCUDepth ) |
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97 | { |
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98 | destroy(); |
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99 | m_uiNumPartitions = 1 << ( uiMaxCUDepth<<1 ); |
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100 | for( Int edgeDir = 0; edgeDir < NUM_EDGE_DIR; edgeDir++ ) |
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101 | { |
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102 | m_aapucBS [edgeDir] = new UChar[m_uiNumPartitions]; |
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103 | m_aapbEdgeFilter[edgeDir] = new Bool [m_uiNumPartitions]; |
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104 | } |
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105 | } |
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106 | |
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107 | Void TComLoopFilter::destroy() |
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108 | { |
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109 | for( Int edgeDir = 0; edgeDir < NUM_EDGE_DIR; edgeDir++ ) |
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110 | { |
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111 | if (m_aapucBS[edgeDir] != NULL) |
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112 | { |
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113 | delete [] m_aapucBS[edgeDir]; |
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114 | m_aapucBS[edgeDir] = NULL; |
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115 | } |
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116 | |
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117 | if (m_aapbEdgeFilter[edgeDir]) |
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118 | { |
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119 | delete [] m_aapbEdgeFilter[edgeDir]; |
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120 | m_aapbEdgeFilter[edgeDir] = NULL; |
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121 | } |
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122 | } |
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123 | } |
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124 | |
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125 | /** |
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126 | - call deblocking function for every CU |
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127 | . |
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128 | \param pcPic picture class (TComPic) pointer |
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129 | */ |
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130 | Void TComLoopFilter::loopFilterPic( TComPic* pcPic ) |
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131 | { |
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132 | // Horizontal filtering |
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133 | for ( UInt ctuRsAddr = 0; ctuRsAddr < pcPic->getNumberOfCtusInFrame(); ctuRsAddr++ ) |
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134 | { |
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135 | TComDataCU* pCtu = pcPic->getCtu( ctuRsAddr ); |
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136 | |
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137 | ::memset( m_aapucBS [EDGE_VER], 0, sizeof( UChar ) * m_uiNumPartitions ); |
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138 | ::memset( m_aapbEdgeFilter[EDGE_VER], 0, sizeof( Bool ) * m_uiNumPartitions ); |
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139 | |
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140 | // CU-based deblocking |
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141 | xDeblockCU( pCtu, 0, 0, EDGE_VER ); |
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142 | } |
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143 | |
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144 | // Vertical filtering |
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145 | for ( UInt ctuRsAddr = 0; ctuRsAddr < pcPic->getNumberOfCtusInFrame(); ctuRsAddr++ ) |
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146 | { |
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147 | TComDataCU* pCtu = pcPic->getCtu( ctuRsAddr ); |
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148 | |
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149 | ::memset( m_aapucBS [EDGE_HOR], 0, sizeof( UChar ) * m_uiNumPartitions ); |
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150 | ::memset( m_aapbEdgeFilter[EDGE_HOR], 0, sizeof( Bool ) * m_uiNumPartitions ); |
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151 | |
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152 | // CU-based deblocking |
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153 | xDeblockCU( pCtu, 0, 0, EDGE_HOR ); |
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154 | } |
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155 | } |
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156 | |
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157 | |
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158 | // ==================================================================================================================== |
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159 | // Protected member functions |
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160 | // ==================================================================================================================== |
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161 | |
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162 | /** |
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163 | Deblocking filter process in CU-based (the same function as conventional's) |
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164 | |
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165 | \param pcCU Pointer to CTU/CU structure |
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166 | \param uiAbsZorderIdx Position in CU |
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167 | \param uiDepth Depth in CU |
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168 | \param edgeDir the direction of the edge in block boundary (horizontal/vertical), which is added newly |
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169 | */ |
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170 | Void TComLoopFilter::xDeblockCU( TComDataCU* pcCU, UInt uiAbsZorderIdx, UInt uiDepth, DeblockEdgeDir edgeDir ) |
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171 | { |
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172 | if(pcCU->getPic()==0||pcCU->getPartitionSize(uiAbsZorderIdx)==NUMBER_OF_PART_SIZES) |
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173 | { |
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174 | return; |
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175 | } |
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176 | TComPic* pcPic = pcCU->getPic(); |
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177 | UInt uiCurNumParts = pcPic->getNumPartitionsInCtu() >> (uiDepth<<1); |
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178 | UInt uiQNumParts = uiCurNumParts>>2; |
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179 | const TComSPS &sps = *(pcCU->getSlice()->getSPS()); |
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180 | |
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181 | if( pcCU->getDepth(uiAbsZorderIdx) > uiDepth ) |
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182 | { |
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183 | for ( UInt uiPartIdx = 0; uiPartIdx < 4; uiPartIdx++, uiAbsZorderIdx+=uiQNumParts ) |
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184 | { |
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185 | UInt uiLPelX = pcCU->getCUPelX() + g_auiRasterToPelX[ g_auiZscanToRaster[uiAbsZorderIdx] ]; |
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186 | UInt uiTPelY = pcCU->getCUPelY() + g_auiRasterToPelY[ g_auiZscanToRaster[uiAbsZorderIdx] ]; |
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187 | if( ( uiLPelX < sps.getPicWidthInLumaSamples() ) && ( uiTPelY < sps.getPicHeightInLumaSamples() ) ) |
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188 | { |
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189 | xDeblockCU( pcCU, uiAbsZorderIdx, uiDepth+1, edgeDir ); |
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190 | } |
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191 | } |
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192 | return; |
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193 | } |
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194 | |
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195 | xSetLoopfilterParam( pcCU, uiAbsZorderIdx ); |
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196 | TComTURecurse tuRecurse(pcCU, uiAbsZorderIdx); |
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197 | xSetEdgefilterTU ( tuRecurse ); |
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198 | xSetEdgefilterPU ( pcCU, uiAbsZorderIdx ); |
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199 | |
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200 | const UInt uiPelsInPart = sps.getMaxCUWidth() >> sps.getMaxTotalCUDepth(); |
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201 | |
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202 | for( UInt uiPartIdx = uiAbsZorderIdx; uiPartIdx < uiAbsZorderIdx + uiCurNumParts; uiPartIdx++ ) |
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203 | { |
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204 | UInt uiBSCheck; |
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205 | if( uiPelsInPart == 4 ) |
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206 | { |
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207 | uiBSCheck = (edgeDir == EDGE_VER && uiPartIdx%2 == 0) || (edgeDir == EDGE_HOR && (uiPartIdx-((uiPartIdx>>2)<<2))/2 == 0); |
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208 | } |
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209 | else |
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210 | { |
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211 | uiBSCheck = 1; |
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212 | } |
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213 | |
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214 | if ( m_aapbEdgeFilter[edgeDir][uiPartIdx] && uiBSCheck ) |
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215 | { |
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216 | xGetBoundaryStrengthSingle ( pcCU, edgeDir, uiPartIdx ); |
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217 | } |
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218 | } |
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219 | |
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220 | UInt PartIdxIncr = DEBLOCK_SMALLEST_BLOCK / uiPelsInPart ? DEBLOCK_SMALLEST_BLOCK / uiPelsInPart : 1 ; |
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221 | |
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222 | UInt uiSizeInPU = pcPic->getNumPartInCtuWidth()>>(uiDepth); |
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223 | const ChromaFormat chFmt=pcPic->getChromaFormat(); |
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224 | const UInt shiftFactor = edgeDir == EDGE_VER ? pcPic->getComponentScaleX(COMPONENT_Cb) : pcPic->getComponentScaleY(COMPONENT_Cb); |
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225 | const Bool bAlwaysDoChroma=chFmt==CHROMA_444; |
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226 | |
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227 | for ( Int iEdge = 0; iEdge < uiSizeInPU ; iEdge+=PartIdxIncr) |
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228 | { |
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229 | xEdgeFilterLuma ( pcCU, uiAbsZorderIdx, uiDepth, edgeDir, iEdge ); |
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230 | if ( chFmt!=CHROMA_400 && (bAlwaysDoChroma || |
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231 | (uiPelsInPart>DEBLOCK_SMALLEST_BLOCK) || |
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232 | (iEdge % ( (DEBLOCK_SMALLEST_BLOCK<<shiftFactor)/uiPelsInPart ) ) == 0 |
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233 | ) |
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234 | ) |
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235 | { |
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236 | xEdgeFilterChroma ( pcCU, uiAbsZorderIdx, uiDepth, edgeDir, iEdge ); |
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237 | } |
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238 | } |
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239 | } |
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240 | |
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241 | Void TComLoopFilter::xSetEdgefilterMultiple( TComDataCU* pcCU, |
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242 | UInt uiAbsZorderIdx, |
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243 | UInt uiDepth, |
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244 | DeblockEdgeDir edgeDir, |
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245 | Int iEdgeIdx, |
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246 | Bool bValue, |
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247 | UInt uiWidthInBaseUnits, |
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248 | UInt uiHeightInBaseUnits, |
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249 | const TComRectangle *rect) |
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250 | { |
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251 | if ( uiWidthInBaseUnits == 0 ) |
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252 | { |
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253 | uiWidthInBaseUnits = pcCU->getPic()->getNumPartInCtuWidth () >> uiDepth; |
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254 | } |
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255 | if ( uiHeightInBaseUnits == 0 ) |
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256 | { |
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257 | uiHeightInBaseUnits = pcCU->getPic()->getNumPartInCtuHeight() >> uiDepth; |
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258 | } |
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259 | const UInt uiNumElem = edgeDir == EDGE_VER ? uiHeightInBaseUnits : uiWidthInBaseUnits; |
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260 | assert( uiNumElem > 0 ); |
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261 | assert( uiWidthInBaseUnits > 0 ); |
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262 | assert( uiHeightInBaseUnits > 0 ); |
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263 | for( UInt ui = 0; ui < uiNumElem; ui++ ) |
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264 | { |
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265 | const UInt uiBsIdx = xCalcBsIdx( pcCU, uiAbsZorderIdx, edgeDir, iEdgeIdx, ui, rect ); |
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266 | m_aapbEdgeFilter[edgeDir][uiBsIdx] = bValue; |
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267 | if (iEdgeIdx == 0) |
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268 | { |
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269 | m_aapucBS[edgeDir][uiBsIdx] = bValue; |
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270 | } |
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271 | } |
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272 | } |
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273 | |
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274 | Void TComLoopFilter::xSetEdgefilterTU( TComTU &rTu ) |
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275 | { |
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276 | TComDataCU* pcCU = rTu.getCU(); |
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277 | UInt uiTransDepthTotal = rTu.GetTransformDepthTotal(); |
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278 | |
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279 | if( pcCU->getTransformIdx( rTu.GetAbsPartIdxTU() ) + pcCU->getDepth( rTu.GetAbsPartIdxTU()) > uiTransDepthTotal ) |
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280 | { |
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281 | TComTURecurse tuChild(rTu, false); |
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282 | do |
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283 | { |
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284 | xSetEdgefilterTU( tuChild ); |
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285 | } while (tuChild.nextSection(rTu)); |
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286 | return; |
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287 | } |
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288 | |
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289 | const TComRectangle &rect = rTu.getRect(COMPONENT_Y); |
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290 | const TComSPS &sps=*(pcCU->getSlice()->getSPS()); |
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291 | |
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292 | const UInt uiWidthInBaseUnits = rect.width / (sps.getMaxCUWidth() >> sps.getMaxTotalCUDepth()); |
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293 | const UInt uiHeightInBaseUnits = rect.height / (sps.getMaxCUHeight() >> sps.getMaxTotalCUDepth()); |
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294 | |
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295 | xSetEdgefilterMultiple( pcCU, rTu.GetAbsPartIdxCU(), uiTransDepthTotal, EDGE_VER, 0, m_stLFCUParam.bInternalEdge, uiWidthInBaseUnits, uiHeightInBaseUnits, &rect ); |
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296 | xSetEdgefilterMultiple( pcCU, rTu.GetAbsPartIdxCU(), uiTransDepthTotal, EDGE_HOR, 0, m_stLFCUParam.bInternalEdge, uiWidthInBaseUnits, uiHeightInBaseUnits, &rect ); |
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297 | } |
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298 | |
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299 | Void TComLoopFilter::xSetEdgefilterPU( TComDataCU* pcCU, UInt uiAbsZorderIdx ) |
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300 | { |
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301 | const UInt uiDepth = pcCU->getDepth( uiAbsZorderIdx ); |
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302 | const UInt uiWidthInBaseUnits = pcCU->getPic()->getNumPartInCtuWidth () >> uiDepth; |
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303 | const UInt uiHeightInBaseUnits = pcCU->getPic()->getNumPartInCtuHeight() >> uiDepth; |
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304 | const UInt uiHWidthInBaseUnits = uiWidthInBaseUnits >> 1; |
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305 | const UInt uiHHeightInBaseUnits = uiHeightInBaseUnits >> 1; |
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306 | const UInt uiQWidthInBaseUnits = uiWidthInBaseUnits >> 2; |
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307 | const UInt uiQHeightInBaseUnits = uiHeightInBaseUnits >> 2; |
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308 | |
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309 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_VER, 0, m_stLFCUParam.bLeftEdge ); |
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310 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_HOR, 0, m_stLFCUParam.bTopEdge ); |
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311 | |
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312 | switch ( pcCU->getPartitionSize( uiAbsZorderIdx ) ) |
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313 | { |
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314 | case SIZE_2Nx2N: |
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315 | { |
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316 | break; |
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317 | } |
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318 | case SIZE_2NxN: |
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319 | { |
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320 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_HOR, uiHHeightInBaseUnits, m_stLFCUParam.bInternalEdge ); |
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321 | break; |
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322 | } |
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323 | case SIZE_Nx2N: |
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324 | { |
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325 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_VER, uiHWidthInBaseUnits, m_stLFCUParam.bInternalEdge ); |
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326 | break; |
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327 | } |
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328 | case SIZE_NxN: |
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329 | { |
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330 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_VER, uiHWidthInBaseUnits, m_stLFCUParam.bInternalEdge ); |
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331 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_HOR, uiHHeightInBaseUnits, m_stLFCUParam.bInternalEdge ); |
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332 | break; |
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333 | } |
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334 | case SIZE_2NxnU: |
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335 | { |
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336 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_HOR, uiQHeightInBaseUnits, m_stLFCUParam.bInternalEdge ); |
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337 | break; |
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338 | } |
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339 | case SIZE_2NxnD: |
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340 | { |
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341 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_HOR, uiHeightInBaseUnits - uiQHeightInBaseUnits, m_stLFCUParam.bInternalEdge ); |
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342 | break; |
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343 | } |
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344 | case SIZE_nLx2N: |
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345 | { |
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346 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_VER, uiQWidthInBaseUnits, m_stLFCUParam.bInternalEdge ); |
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347 | break; |
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348 | } |
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349 | case SIZE_nRx2N: |
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350 | { |
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351 | xSetEdgefilterMultiple( pcCU, uiAbsZorderIdx, uiDepth, EDGE_VER, uiWidthInBaseUnits - uiQWidthInBaseUnits, m_stLFCUParam.bInternalEdge ); |
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352 | break; |
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353 | } |
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354 | default: |
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355 | { |
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356 | break; |
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357 | } |
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358 | } |
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359 | } |
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360 | |
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361 | |
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362 | Void TComLoopFilter::xSetLoopfilterParam( TComDataCU* pcCU, UInt uiAbsZorderIdx ) |
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363 | { |
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364 | UInt uiX = pcCU->getCUPelX() + g_auiRasterToPelX[ g_auiZscanToRaster[ uiAbsZorderIdx ] ]; |
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365 | UInt uiY = pcCU->getCUPelY() + g_auiRasterToPelY[ g_auiZscanToRaster[ uiAbsZorderIdx ] ]; |
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366 | |
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367 | UInt uiTempPartIdx; |
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368 | |
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369 | m_stLFCUParam.bInternalEdge = ! pcCU->getSlice()->getDeblockingFilterDisable(); |
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370 | |
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371 | if ( (uiX == 0) || pcCU->getSlice()->getDeblockingFilterDisable() ) |
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372 | { |
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373 | m_stLFCUParam.bLeftEdge = false; |
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374 | } |
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375 | else |
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376 | { |
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377 | m_stLFCUParam.bLeftEdge = true; |
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378 | } |
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379 | if ( m_stLFCUParam.bLeftEdge ) |
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380 | { |
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381 | const TComDataCU* pcTempCU = pcCU->getPULeft( uiTempPartIdx, uiAbsZorderIdx, !pcCU->getSlice()->getLFCrossSliceBoundaryFlag(), !m_bLFCrossTileBoundary); |
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382 | |
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383 | if ( pcTempCU != NULL ) |
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384 | { |
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385 | m_stLFCUParam.bLeftEdge = true; |
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386 | } |
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387 | else |
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388 | { |
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389 | m_stLFCUParam.bLeftEdge = false; |
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390 | } |
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391 | } |
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392 | |
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393 | if ( (uiY == 0 ) || pcCU->getSlice()->getDeblockingFilterDisable() ) |
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394 | { |
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395 | m_stLFCUParam.bTopEdge = false; |
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396 | } |
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397 | else |
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398 | { |
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399 | m_stLFCUParam.bTopEdge = true; |
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400 | } |
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401 | if ( m_stLFCUParam.bTopEdge ) |
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402 | { |
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403 | const TComDataCU* pcTempCU = pcCU->getPUAbove( uiTempPartIdx, uiAbsZorderIdx, !pcCU->getSlice()->getLFCrossSliceBoundaryFlag(), false, !m_bLFCrossTileBoundary); |
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404 | |
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405 | if ( pcTempCU != NULL ) |
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406 | { |
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407 | m_stLFCUParam.bTopEdge = true; |
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408 | } |
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409 | else |
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410 | { |
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411 | m_stLFCUParam.bTopEdge = false; |
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412 | } |
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413 | } |
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414 | } |
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415 | |
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416 | Void TComLoopFilter::xGetBoundaryStrengthSingle ( TComDataCU* pCtu, DeblockEdgeDir edgeDir, UInt uiAbsPartIdx4x4BlockWithinCtu ) |
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417 | { |
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418 | TComSlice * const pcSlice = pCtu->getSlice(); |
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419 | |
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420 | const Bool lfCrossSliceBoundaryFlag=pCtu->getSlice()->getLFCrossSliceBoundaryFlag(); |
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421 | |
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422 | const UInt uiPartQ = uiAbsPartIdx4x4BlockWithinCtu; |
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423 | TComDataCU* const pcCUQ = pCtu; |
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424 | |
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425 | UInt uiPartP; |
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426 | const TComDataCU* pcCUP; |
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427 | UInt uiBs = 0; |
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428 | |
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429 | //-- Calculate Block Index |
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430 | if (edgeDir == EDGE_VER) |
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431 | { |
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432 | pcCUP = pcCUQ->getPULeft(uiPartP, uiPartQ, !lfCrossSliceBoundaryFlag, !m_bLFCrossTileBoundary); |
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433 | } |
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434 | else // (edgeDir == EDGE_HOR) |
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435 | { |
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436 | pcCUP = pcCUQ->getPUAbove(uiPartP, uiPartQ, !pCtu->getSlice()->getLFCrossSliceBoundaryFlag(), false, !m_bLFCrossTileBoundary); |
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437 | } |
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438 | |
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439 | //-- Set BS for Intra MB : BS = 4 or 3 |
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440 | if ( pcCUP->isIntra(uiPartP) || pcCUQ->isIntra(uiPartQ) ) |
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441 | { |
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442 | uiBs = 2; |
---|
443 | } |
---|
444 | |
---|
445 | //-- Set BS for not Intra MB : BS = 2 or 1 or 0 |
---|
446 | if ( !pcCUP->isIntra(uiPartP) && !pcCUQ->isIntra(uiPartQ) ) |
---|
447 | { |
---|
448 | UInt nsPartQ = uiPartQ; |
---|
449 | UInt nsPartP = uiPartP; |
---|
450 | |
---|
451 | if ( m_aapucBS[edgeDir][uiAbsPartIdx4x4BlockWithinCtu] && (pcCUQ->getCbf( nsPartQ, COMPONENT_Y, pcCUQ->getTransformIdx(nsPartQ)) != 0 || pcCUP->getCbf( nsPartP, COMPONENT_Y, pcCUP->getTransformIdx(nsPartP) ) != 0) ) |
---|
452 | { |
---|
453 | uiBs = 1; |
---|
454 | } |
---|
455 | else |
---|
456 | { |
---|
457 | if (pcSlice->isInterB() || pcCUP->getSlice()->isInterB()) |
---|
458 | { |
---|
459 | Int iRefIdx; |
---|
460 | iRefIdx = pcCUP->getCUMvField(REF_PIC_LIST_0)->getRefIdx(uiPartP); |
---|
461 | const TComPic *piRefP0 = (iRefIdx < 0) ? NULL : pcCUP->getSlice()->getRefPic(REF_PIC_LIST_0, iRefIdx); |
---|
462 | iRefIdx = pcCUP->getCUMvField(REF_PIC_LIST_1)->getRefIdx(uiPartP); |
---|
463 | const TComPic *piRefP1 = (iRefIdx < 0) ? NULL : pcCUP->getSlice()->getRefPic(REF_PIC_LIST_1, iRefIdx); |
---|
464 | iRefIdx = pcCUQ->getCUMvField(REF_PIC_LIST_0)->getRefIdx(uiPartQ); |
---|
465 | const TComPic *piRefQ0 = (iRefIdx < 0) ? NULL : pcSlice->getRefPic(REF_PIC_LIST_0, iRefIdx); |
---|
466 | iRefIdx = pcCUQ->getCUMvField(REF_PIC_LIST_1)->getRefIdx(uiPartQ); |
---|
467 | const TComPic *piRefQ1 = (iRefIdx < 0) ? NULL : pcSlice->getRefPic(REF_PIC_LIST_1, iRefIdx); |
---|
468 | |
---|
469 | TComMv pcMvP0 = pcCUP->getCUMvField(REF_PIC_LIST_0)->getMv(uiPartP); |
---|
470 | TComMv pcMvP1 = pcCUP->getCUMvField(REF_PIC_LIST_1)->getMv(uiPartP); |
---|
471 | TComMv pcMvQ0 = pcCUQ->getCUMvField(REF_PIC_LIST_0)->getMv(uiPartQ); |
---|
472 | TComMv pcMvQ1 = pcCUQ->getCUMvField(REF_PIC_LIST_1)->getMv(uiPartQ); |
---|
473 | |
---|
474 | if (piRefP0 == NULL) |
---|
475 | { |
---|
476 | pcMvP0.setZero(); |
---|
477 | } |
---|
478 | if (piRefP1 == NULL) |
---|
479 | { |
---|
480 | pcMvP1.setZero(); |
---|
481 | } |
---|
482 | if (piRefQ0 == NULL) |
---|
483 | { |
---|
484 | pcMvQ0.setZero(); |
---|
485 | } |
---|
486 | if (piRefQ1 == NULL) |
---|
487 | { |
---|
488 | pcMvQ1.setZero(); |
---|
489 | } |
---|
490 | |
---|
491 | if ( ((piRefP0==piRefQ0)&&(piRefP1==piRefQ1)) || ((piRefP0==piRefQ1)&&(piRefP1==piRefQ0)) ) |
---|
492 | { |
---|
493 | if ( piRefP0 != piRefP1 ) // Different L0 & L1 |
---|
494 | { |
---|
495 | if ( piRefP0 == piRefQ0 ) |
---|
496 | { |
---|
497 | uiBs = ((abs(pcMvQ0.getHor() - pcMvP0.getHor()) >= 4) || |
---|
498 | (abs(pcMvQ0.getVer() - pcMvP0.getVer()) >= 4) || |
---|
499 | (abs(pcMvQ1.getHor() - pcMvP1.getHor()) >= 4) || |
---|
500 | (abs(pcMvQ1.getVer() - pcMvP1.getVer()) >= 4)) ? 1 : 0; |
---|
501 | } |
---|
502 | else |
---|
503 | { |
---|
504 | uiBs = ((abs(pcMvQ1.getHor() - pcMvP0.getHor()) >= 4) || |
---|
505 | (abs(pcMvQ1.getVer() - pcMvP0.getVer()) >= 4) || |
---|
506 | (abs(pcMvQ0.getHor() - pcMvP1.getHor()) >= 4) || |
---|
507 | (abs(pcMvQ0.getVer() - pcMvP1.getVer()) >= 4)) ? 1 : 0; |
---|
508 | } |
---|
509 | } |
---|
510 | else // Same L0 & L1 |
---|
511 | { |
---|
512 | uiBs = ((abs(pcMvQ0.getHor() - pcMvP0.getHor()) >= 4) || |
---|
513 | (abs(pcMvQ0.getVer() - pcMvP0.getVer()) >= 4) || |
---|
514 | (abs(pcMvQ1.getHor() - pcMvP1.getHor()) >= 4) || |
---|
515 | (abs(pcMvQ1.getVer() - pcMvP1.getVer()) >= 4)) && |
---|
516 | ((abs(pcMvQ1.getHor() - pcMvP0.getHor()) >= 4) || |
---|
517 | (abs(pcMvQ1.getVer() - pcMvP0.getVer()) >= 4) || |
---|
518 | (abs(pcMvQ0.getHor() - pcMvP1.getHor()) >= 4) || |
---|
519 | (abs(pcMvQ0.getVer() - pcMvP1.getVer()) >= 4)) ? 1 : 0; |
---|
520 | } |
---|
521 | } |
---|
522 | else // for all different Ref_Idx |
---|
523 | { |
---|
524 | uiBs = 1; |
---|
525 | } |
---|
526 | } |
---|
527 | else // pcSlice->isInterP() |
---|
528 | { |
---|
529 | Int iRefIdx; |
---|
530 | iRefIdx = pcCUP->getCUMvField(REF_PIC_LIST_0)->getRefIdx(uiPartP); |
---|
531 | const TComPic *piRefP0 = (iRefIdx < 0) ? NULL : pcCUP->getSlice()->getRefPic(REF_PIC_LIST_0, iRefIdx); |
---|
532 | iRefIdx = pcCUQ->getCUMvField(REF_PIC_LIST_0)->getRefIdx(uiPartQ); |
---|
533 | const TComPic *piRefQ0 = (iRefIdx < 0) ? NULL : pcSlice->getRefPic(REF_PIC_LIST_0, iRefIdx); |
---|
534 | TComMv pcMvP0 = pcCUP->getCUMvField(REF_PIC_LIST_0)->getMv(uiPartP); |
---|
535 | TComMv pcMvQ0 = pcCUQ->getCUMvField(REF_PIC_LIST_0)->getMv(uiPartQ); |
---|
536 | |
---|
537 | if (piRefP0 == NULL) |
---|
538 | { |
---|
539 | pcMvP0.setZero(); |
---|
540 | } |
---|
541 | if (piRefQ0 == NULL) |
---|
542 | { |
---|
543 | pcMvQ0.setZero(); |
---|
544 | } |
---|
545 | |
---|
546 | uiBs = ((piRefP0 != piRefQ0) || |
---|
547 | (abs(pcMvQ0.getHor() - pcMvP0.getHor()) >= 4) || |
---|
548 | (abs(pcMvQ0.getVer() - pcMvP0.getVer()) >= 4)) ? 1 : 0; |
---|
549 | } |
---|
550 | } // enf of "if( one of BCBP == 0 )" |
---|
551 | } // enf of "if( not Intra )" |
---|
552 | |
---|
553 | m_aapucBS[edgeDir][uiAbsPartIdx4x4BlockWithinCtu] = uiBs; |
---|
554 | } |
---|
555 | |
---|
556 | |
---|
557 | Void TComLoopFilter::xEdgeFilterLuma( TComDataCU* const pcCU, const UInt uiAbsZorderIdx, const UInt uiDepth, const DeblockEdgeDir edgeDir, const Int iEdge ) |
---|
558 | { |
---|
559 | TComPicYuv *pcPicYuvRec = pcCU->getPic()->getPicYuvRec(); |
---|
560 | Pel *piSrc = pcPicYuvRec->getAddr(COMPONENT_Y, pcCU->getCtuRsAddr(), uiAbsZorderIdx ); |
---|
561 | Pel *piTmpSrc = piSrc; |
---|
562 | const TComSPS &sps = *(pcCU->getSlice()->getSPS()); |
---|
563 | const Bool ppsTransquantBypassEnabledFlag = pcCU->getSlice()->getPPS()->getTransquantBypassEnabledFlag(); |
---|
564 | const Int bitDepthLuma = sps.getBitDepth(CHANNEL_TYPE_LUMA); |
---|
565 | const Bool lfCrossSliceBoundaryFlag = pcCU->getSlice()->getLFCrossSliceBoundaryFlag(); |
---|
566 | |
---|
567 | Int iStride = pcPicYuvRec->getStride(COMPONENT_Y); |
---|
568 | Int iQP = 0; |
---|
569 | Int iQP_P = 0; |
---|
570 | Int iQP_Q = 0; |
---|
571 | UInt uiNumParts = pcCU->getPic()->getNumPartInCtuWidth()>>uiDepth; |
---|
572 | |
---|
573 | UInt uiPelsInPart = sps.getMaxCUWidth() >> sps.getMaxTotalCUDepth(); |
---|
574 | UInt uiBsAbsIdx = 0, uiBs = 0; |
---|
575 | Int iOffset, iSrcStep; |
---|
576 | |
---|
577 | Bool bPCMFilter = (sps.getUsePCM() && sps.getPCMFilterDisableFlag())? true : false; |
---|
578 | Bool bPartPNoFilter = false; |
---|
579 | Bool bPartQNoFilter = false; |
---|
580 | UInt uiPartPIdx = 0; |
---|
581 | UInt uiPartQIdx = 0; |
---|
582 | const TComDataCU* pcCUP = pcCU; |
---|
583 | TComDataCU* pcCUQ = pcCU; |
---|
584 | Int betaOffsetDiv2 = pcCUQ->getSlice()->getDeblockingFilterBetaOffsetDiv2(); |
---|
585 | Int tcOffsetDiv2 = pcCUQ->getSlice()->getDeblockingFilterTcOffsetDiv2(); |
---|
586 | |
---|
587 | if (edgeDir == EDGE_VER) |
---|
588 | { |
---|
589 | iOffset = 1; |
---|
590 | iSrcStep = iStride; |
---|
591 | piTmpSrc += iEdge*uiPelsInPart; |
---|
592 | } |
---|
593 | else // (edgeDir == EDGE_HOR) |
---|
594 | { |
---|
595 | iOffset = iStride; |
---|
596 | iSrcStep = 1; |
---|
597 | piTmpSrc += iEdge*uiPelsInPart*iStride; |
---|
598 | } |
---|
599 | |
---|
600 | const Int iBitdepthScale = 1 << (bitDepthLuma-8); |
---|
601 | |
---|
602 | for ( UInt iIdx = 0; iIdx < uiNumParts; iIdx++ ) |
---|
603 | { |
---|
604 | uiBsAbsIdx = xCalcBsIdx( pcCU, uiAbsZorderIdx, edgeDir, iEdge, iIdx); |
---|
605 | uiBs = m_aapucBS[edgeDir][uiBsAbsIdx]; |
---|
606 | if ( uiBs ) |
---|
607 | { |
---|
608 | iQP_Q = pcCU->getQP( uiBsAbsIdx ); |
---|
609 | uiPartQIdx = uiBsAbsIdx; |
---|
610 | // Derive neighboring PU index |
---|
611 | if (edgeDir == EDGE_VER) |
---|
612 | { |
---|
613 | pcCUP = pcCUQ->getPULeft (uiPartPIdx, uiPartQIdx,!lfCrossSliceBoundaryFlag, !m_bLFCrossTileBoundary); |
---|
614 | } |
---|
615 | else // (iDir == EDGE_HOR) |
---|
616 | { |
---|
617 | pcCUP = pcCUQ->getPUAbove(uiPartPIdx, uiPartQIdx,!lfCrossSliceBoundaryFlag, false, !m_bLFCrossTileBoundary); |
---|
618 | } |
---|
619 | |
---|
620 | iQP_P = pcCUP->getQP(uiPartPIdx); |
---|
621 | iQP = (iQP_P + iQP_Q + 1) >> 1; |
---|
622 | |
---|
623 | Int iIndexTC = Clip3(0, MAX_QP+DEFAULT_INTRA_TC_OFFSET, Int(iQP + DEFAULT_INTRA_TC_OFFSET*(uiBs-1) + (tcOffsetDiv2 << 1))); |
---|
624 | Int iIndexB = Clip3(0, MAX_QP, iQP + (betaOffsetDiv2 << 1)); |
---|
625 | |
---|
626 | Int iTc = sm_tcTable[iIndexTC]*iBitdepthScale; |
---|
627 | Int iBeta = sm_betaTable[iIndexB]*iBitdepthScale; |
---|
628 | Int iSideThreshold = (iBeta+(iBeta>>1))>>3; |
---|
629 | Int iThrCut = iTc*10; |
---|
630 | |
---|
631 | |
---|
632 | UInt uiBlocksInPart = uiPelsInPart / 4 ? uiPelsInPart / 4 : 1; |
---|
633 | for (UInt iBlkIdx = 0; iBlkIdx<uiBlocksInPart; iBlkIdx ++) |
---|
634 | { |
---|
635 | Int dp0 = xCalcDP( piTmpSrc+iSrcStep*(iIdx*uiPelsInPart+iBlkIdx*4+0), iOffset); |
---|
636 | Int dq0 = xCalcDQ( piTmpSrc+iSrcStep*(iIdx*uiPelsInPart+iBlkIdx*4+0), iOffset); |
---|
637 | Int dp3 = xCalcDP( piTmpSrc+iSrcStep*(iIdx*uiPelsInPart+iBlkIdx*4+3), iOffset); |
---|
638 | Int dq3 = xCalcDQ( piTmpSrc+iSrcStep*(iIdx*uiPelsInPart+iBlkIdx*4+3), iOffset); |
---|
639 | Int d0 = dp0 + dq0; |
---|
640 | Int d3 = dp3 + dq3; |
---|
641 | |
---|
642 | Int dp = dp0 + dp3; |
---|
643 | Int dq = dq0 + dq3; |
---|
644 | Int d = d0 + d3; |
---|
645 | |
---|
646 | if (bPCMFilter || ppsTransquantBypassEnabledFlag) |
---|
647 | { |
---|
648 | // Check if each of PUs is I_PCM with LF disabling |
---|
649 | bPartPNoFilter = (bPCMFilter && pcCUP->getIPCMFlag(uiPartPIdx)); |
---|
650 | bPartQNoFilter = (bPCMFilter && pcCUQ->getIPCMFlag(uiPartQIdx)); |
---|
651 | |
---|
652 | // check if each of PUs is lossless coded |
---|
653 | bPartPNoFilter = bPartPNoFilter || (pcCUP->isLosslessCoded(uiPartPIdx) ); |
---|
654 | bPartQNoFilter = bPartQNoFilter || (pcCUQ->isLosslessCoded(uiPartQIdx) ); |
---|
655 | } |
---|
656 | |
---|
657 | if (d < iBeta) |
---|
658 | { |
---|
659 | Bool bFilterP = (dp < iSideThreshold); |
---|
660 | Bool bFilterQ = (dq < iSideThreshold); |
---|
661 | |
---|
662 | Bool sw = xUseStrongFiltering( iOffset, 2*d0, iBeta, iTc, piTmpSrc+iSrcStep*(iIdx*uiPelsInPart+iBlkIdx*4+0)) |
---|
663 | && xUseStrongFiltering( iOffset, 2*d3, iBeta, iTc, piTmpSrc+iSrcStep*(iIdx*uiPelsInPart+iBlkIdx*4+3)); |
---|
664 | |
---|
665 | for ( Int i = 0; i < DEBLOCK_SMALLEST_BLOCK/2; i++) |
---|
666 | { |
---|
667 | xPelFilterLuma( piTmpSrc+iSrcStep*(iIdx*uiPelsInPart+iBlkIdx*4+i), iOffset, iTc, sw, bPartPNoFilter, bPartQNoFilter, iThrCut, bFilterP, bFilterQ, bitDepthLuma); |
---|
668 | } |
---|
669 | } |
---|
670 | } |
---|
671 | } |
---|
672 | } |
---|
673 | } |
---|
674 | |
---|
675 | |
---|
676 | Void TComLoopFilter::xEdgeFilterChroma( TComDataCU* const pcCU, const UInt uiAbsZorderIdx, const UInt uiDepth, const DeblockEdgeDir edgeDir, const Int iEdge ) |
---|
677 | { |
---|
678 | TComPicYuv *pcPicYuvRec = pcCU->getPic()->getPicYuvRec(); |
---|
679 | Int iStride = pcPicYuvRec->getStride(COMPONENT_Cb); |
---|
680 | Pel *piSrcCb = pcPicYuvRec->getAddr( COMPONENT_Cb, pcCU->getCtuRsAddr(), uiAbsZorderIdx ); |
---|
681 | Pel *piSrcCr = pcPicYuvRec->getAddr( COMPONENT_Cr, pcCU->getCtuRsAddr(), uiAbsZorderIdx ); |
---|
682 | const TComSPS &sps = *(pcCU->getSlice()->getSPS()); |
---|
683 | const Int bitDepthChroma = sps.getBitDepth(CHANNEL_TYPE_CHROMA); |
---|
684 | |
---|
685 | const UInt uiPelsInPartChromaH = sps.getMaxCUWidth() >> (sps.getMaxTotalCUDepth()+pcPicYuvRec->getComponentScaleX(COMPONENT_Cb)); |
---|
686 | const UInt uiPelsInPartChromaV = sps.getMaxCUHeight() >> (sps.getMaxTotalCUDepth()+pcPicYuvRec->getComponentScaleY(COMPONENT_Cb)); |
---|
687 | |
---|
688 | Int iQP = 0; |
---|
689 | Int iQP_P = 0; |
---|
690 | Int iQP_Q = 0; |
---|
691 | |
---|
692 | Int iOffset, iSrcStep; |
---|
693 | UInt uiLoopLength; |
---|
694 | |
---|
695 | const UInt uiCtuWidthInBaseUnits = pcCU->getPic()->getNumPartInCtuWidth(); |
---|
696 | |
---|
697 | Bool bPCMFilter = (pcCU->getSlice()->getSPS()->getUsePCM() && pcCU->getSlice()->getSPS()->getPCMFilterDisableFlag())? true : false; |
---|
698 | Bool bPartPNoFilter = false; |
---|
699 | Bool bPartQNoFilter = false; |
---|
700 | TComDataCU* pcCUQ = pcCU; |
---|
701 | Int tcOffsetDiv2 = pcCU->getSlice()->getDeblockingFilterTcOffsetDiv2(); |
---|
702 | |
---|
703 | // Vertical Position |
---|
704 | UInt uiEdgeNumInCtuVert = g_auiZscanToRaster[uiAbsZorderIdx]%uiCtuWidthInBaseUnits + iEdge; |
---|
705 | UInt uiEdgeNumInCtuHor = g_auiZscanToRaster[uiAbsZorderIdx]/uiCtuWidthInBaseUnits + iEdge; |
---|
706 | |
---|
707 | if ( (uiPelsInPartChromaH < DEBLOCK_SMALLEST_BLOCK) && (uiPelsInPartChromaV < DEBLOCK_SMALLEST_BLOCK) && |
---|
708 | ( |
---|
709 | ( (uiEdgeNumInCtuVert%(DEBLOCK_SMALLEST_BLOCK/uiPelsInPartChromaH)) && (edgeDir==EDGE_VER) ) || |
---|
710 | ( (uiEdgeNumInCtuHor %(DEBLOCK_SMALLEST_BLOCK/uiPelsInPartChromaV)) && (edgeDir==EDGE_HOR) ) |
---|
711 | ) |
---|
712 | ) |
---|
713 | { |
---|
714 | return; |
---|
715 | } |
---|
716 | |
---|
717 | |
---|
718 | const Bool lfCrossSliceBoundaryFlag=pcCU->getSlice()->getLFCrossSliceBoundaryFlag(); |
---|
719 | |
---|
720 | UInt uiNumParts = pcCU->getPic()->getNumPartInCtuWidth()>>uiDepth; |
---|
721 | |
---|
722 | UInt uiBsAbsIdx; |
---|
723 | UChar ucBs; |
---|
724 | |
---|
725 | Pel* piTmpSrcCb = piSrcCb; |
---|
726 | Pel* piTmpSrcCr = piSrcCr; |
---|
727 | |
---|
728 | if (edgeDir == EDGE_VER) |
---|
729 | { |
---|
730 | iOffset = 1; |
---|
731 | iSrcStep = iStride; |
---|
732 | piTmpSrcCb += iEdge*uiPelsInPartChromaH; |
---|
733 | piTmpSrcCr += iEdge*uiPelsInPartChromaH; |
---|
734 | uiLoopLength=uiPelsInPartChromaV; |
---|
735 | } |
---|
736 | else // (edgeDir == EDGE_HOR) |
---|
737 | { |
---|
738 | iOffset = iStride; |
---|
739 | iSrcStep = 1; |
---|
740 | piTmpSrcCb += iEdge*iStride*uiPelsInPartChromaV; |
---|
741 | piTmpSrcCr += iEdge*iStride*uiPelsInPartChromaV; |
---|
742 | uiLoopLength=uiPelsInPartChromaH; |
---|
743 | } |
---|
744 | |
---|
745 | const Int iBitdepthScale = 1 << (pcCU->getSlice()->getSPS()->getBitDepth(CHANNEL_TYPE_CHROMA)-8); |
---|
746 | |
---|
747 | for ( UInt iIdx = 0; iIdx < uiNumParts; iIdx++ ) |
---|
748 | { |
---|
749 | uiBsAbsIdx = xCalcBsIdx( pcCU, uiAbsZorderIdx, edgeDir, iEdge, iIdx); |
---|
750 | ucBs = m_aapucBS[edgeDir][uiBsAbsIdx]; |
---|
751 | |
---|
752 | if ( ucBs > 1) |
---|
753 | { |
---|
754 | iQP_Q = pcCU->getQP( uiBsAbsIdx ); |
---|
755 | UInt uiPartQIdx = uiBsAbsIdx; |
---|
756 | // Derive neighboring PU index |
---|
757 | const TComDataCU* pcCUP; |
---|
758 | UInt uiPartPIdx; |
---|
759 | |
---|
760 | if (edgeDir == EDGE_VER) |
---|
761 | { |
---|
762 | pcCUP = pcCUQ->getPULeft (uiPartPIdx, uiPartQIdx,!lfCrossSliceBoundaryFlag, !m_bLFCrossTileBoundary); |
---|
763 | } |
---|
764 | else // (edgeDir == EDGE_HOR) |
---|
765 | { |
---|
766 | pcCUP = pcCUQ->getPUAbove(uiPartPIdx, uiPartQIdx,!lfCrossSliceBoundaryFlag, false, !m_bLFCrossTileBoundary); |
---|
767 | } |
---|
768 | |
---|
769 | iQP_P = pcCUP->getQP(uiPartPIdx); |
---|
770 | |
---|
771 | if (bPCMFilter || pcCU->getSlice()->getPPS()->getTransquantBypassEnabledFlag()) |
---|
772 | { |
---|
773 | // Check if each of PUs is I_PCM with LF disabling |
---|
774 | bPartPNoFilter = (bPCMFilter && pcCUP->getIPCMFlag(uiPartPIdx)); |
---|
775 | bPartQNoFilter = (bPCMFilter && pcCUQ->getIPCMFlag(uiPartQIdx)); |
---|
776 | |
---|
777 | // check if each of PUs is lossless coded |
---|
778 | bPartPNoFilter = bPartPNoFilter || (pcCUP->isLosslessCoded(uiPartPIdx)); |
---|
779 | bPartQNoFilter = bPartQNoFilter || (pcCUQ->isLosslessCoded(uiPartQIdx)); |
---|
780 | } |
---|
781 | |
---|
782 | for ( UInt chromaIdx = 0; chromaIdx < 2; chromaIdx++ ) |
---|
783 | { |
---|
784 | Int chromaQPOffset = pcCU->getSlice()->getPPS()->getQpOffset(ComponentID(chromaIdx + 1)); |
---|
785 | Pel* piTmpSrcChroma = (chromaIdx == 0) ? piTmpSrcCb : piTmpSrcCr; |
---|
786 | |
---|
787 | iQP = ((iQP_P + iQP_Q + 1) >> 1) + chromaQPOffset; |
---|
788 | if (iQP >= chromaQPMappingTableSize) |
---|
789 | { |
---|
790 | if (pcPicYuvRec->getChromaFormat()==CHROMA_420) |
---|
791 | { |
---|
792 | iQP -=6; |
---|
793 | } |
---|
794 | else if (iQP>51) |
---|
795 | { |
---|
796 | iQP=51; |
---|
797 | } |
---|
798 | } |
---|
799 | else if (iQP >= 0 ) |
---|
800 | { |
---|
801 | iQP = getScaledChromaQP(iQP, pcPicYuvRec->getChromaFormat()); |
---|
802 | } |
---|
803 | |
---|
804 | Int iIndexTC = Clip3(0, MAX_QP+DEFAULT_INTRA_TC_OFFSET, iQP + DEFAULT_INTRA_TC_OFFSET*(ucBs - 1) + (tcOffsetDiv2 << 1)); |
---|
805 | Int iTc = sm_tcTable[iIndexTC]*iBitdepthScale; |
---|
806 | |
---|
807 | for ( UInt uiStep = 0; uiStep < uiLoopLength; uiStep++ ) |
---|
808 | { |
---|
809 | xPelFilterChroma( piTmpSrcChroma + iSrcStep*(uiStep+iIdx*uiLoopLength), iOffset, iTc , bPartPNoFilter, bPartQNoFilter, bitDepthChroma); |
---|
810 | } |
---|
811 | } |
---|
812 | } |
---|
813 | } |
---|
814 | } |
---|
815 | |
---|
816 | /** |
---|
817 | - Deblocking for the luminance component with strong or weak filter |
---|
818 | . |
---|
819 | \param piSrc pointer to picture data |
---|
820 | \param iOffset offset value for picture data |
---|
821 | \param tc tc value |
---|
822 | \param sw decision strong/weak filter |
---|
823 | \param bPartPNoFilter indicator to disable filtering on partP |
---|
824 | \param bPartQNoFilter indicator to disable filtering on partQ |
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825 | \param iThrCut threshold value for weak filter decision |
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826 | \param bFilterSecondP decision weak filter/no filter for partP |
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827 | \param bFilterSecondQ decision weak filter/no filter for partQ |
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828 | \param bitDepthLuma luma bit depth |
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829 | */ |
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830 | __inline Void TComLoopFilter::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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831 | { |
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832 | Int delta; |
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833 | |
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834 | Pel m4 = piSrc[0]; |
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835 | Pel m3 = piSrc[-iOffset]; |
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836 | Pel m5 = piSrc[ iOffset]; |
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837 | Pel m2 = piSrc[-iOffset*2]; |
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838 | Pel m6 = piSrc[ iOffset*2]; |
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839 | Pel m1 = piSrc[-iOffset*3]; |
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840 | Pel m7 = piSrc[ iOffset*3]; |
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841 | Pel m0 = piSrc[-iOffset*4]; |
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842 | |
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843 | if (sw) |
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844 | { |
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845 | piSrc[-iOffset] = Clip3(m3-2*tc, m3+2*tc, ((m1 + 2*m2 + 2*m3 + 2*m4 + m5 + 4) >> 3)); |
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846 | piSrc[0] = Clip3(m4-2*tc, m4+2*tc, ((m2 + 2*m3 + 2*m4 + 2*m5 + m6 + 4) >> 3)); |
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847 | piSrc[-iOffset*2] = Clip3(m2-2*tc, m2+2*tc, ((m1 + m2 + m3 + m4 + 2)>>2)); |
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848 | piSrc[ iOffset] = Clip3(m5-2*tc, m5+2*tc, ((m3 + m4 + m5 + m6 + 2)>>2)); |
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849 | piSrc[-iOffset*3] = Clip3(m1-2*tc, m1+2*tc, ((2*m0 + 3*m1 + m2 + m3 + m4 + 4 )>>3)); |
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850 | piSrc[ iOffset*2] = Clip3(m6-2*tc, m6+2*tc, ((m3 + m4 + m5 + 3*m6 + 2*m7 +4 )>>3)); |
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851 | } |
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852 | else |
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853 | { |
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854 | /* Weak filter */ |
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855 | delta = (9*(m4-m3) -3*(m5-m2) + 8)>>4 ; |
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856 | |
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857 | if ( abs(delta) < iThrCut ) |
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858 | { |
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859 | delta = Clip3(-tc, tc, delta); |
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860 | piSrc[-iOffset] = ClipBD((m3+delta), bitDepthLuma); |
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861 | piSrc[0] = ClipBD((m4-delta), bitDepthLuma); |
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862 | |
---|
863 | Int tc2 = tc>>1; |
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864 | if(bFilterSecondP) |
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865 | { |
---|
866 | Int delta1 = Clip3(-tc2, tc2, (( ((m1+m3+1)>>1)- m2+delta)>>1)); |
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867 | piSrc[-iOffset*2] = ClipBD((m2+delta1), bitDepthLuma); |
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868 | } |
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869 | if(bFilterSecondQ) |
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870 | { |
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871 | Int delta2 = Clip3(-tc2, tc2, (( ((m6+m4+1)>>1)- m5-delta)>>1)); |
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872 | piSrc[ iOffset] = ClipBD((m5+delta2), bitDepthLuma); |
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873 | } |
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874 | } |
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875 | } |
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876 | |
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877 | if(bPartPNoFilter) |
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878 | { |
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879 | piSrc[-iOffset] = m3; |
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880 | piSrc[-iOffset*2] = m2; |
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881 | piSrc[-iOffset*3] = m1; |
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882 | } |
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883 | if(bPartQNoFilter) |
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884 | { |
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885 | piSrc[0] = m4; |
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886 | piSrc[ iOffset] = m5; |
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887 | piSrc[ iOffset*2] = m6; |
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888 | } |
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889 | } |
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890 | |
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891 | /** |
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892 | - Deblocking of one line/column for the chrominance component |
---|
893 | . |
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894 | \param piSrc pointer to picture data |
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895 | \param iOffset offset value for picture data |
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896 | \param tc tc value |
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897 | \param bPartPNoFilter indicator to disable filtering on partP |
---|
898 | \param bPartQNoFilter indicator to disable filtering on partQ |
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899 | \param bitDepthChroma chroma bit depth |
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900 | */ |
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901 | __inline Void TComLoopFilter::xPelFilterChroma( Pel* piSrc, Int iOffset, Int tc, Bool bPartPNoFilter, Bool bPartQNoFilter, const Int bitDepthChroma) |
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902 | { |
---|
903 | Int delta; |
---|
904 | |
---|
905 | Pel m4 = piSrc[0]; |
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906 | Pel m3 = piSrc[-iOffset]; |
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907 | Pel m5 = piSrc[ iOffset]; |
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908 | Pel m2 = piSrc[-iOffset*2]; |
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909 | |
---|
910 | delta = Clip3(-tc,tc, (((( m4 - m3 ) << 2 ) + m2 - m5 + 4 ) >> 3) ); |
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911 | piSrc[-iOffset] = ClipBD((m3+delta), bitDepthChroma); |
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912 | piSrc[0] = ClipBD((m4-delta), bitDepthChroma); |
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913 | |
---|
914 | if(bPartPNoFilter) |
---|
915 | { |
---|
916 | piSrc[-iOffset] = m3; |
---|
917 | } |
---|
918 | if(bPartQNoFilter) |
---|
919 | { |
---|
920 | piSrc[0] = m4; |
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921 | } |
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922 | } |
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923 | |
---|
924 | /** |
---|
925 | - Decision between strong and weak filter |
---|
926 | . |
---|
927 | \param offset offset value for picture data |
---|
928 | \param d d value |
---|
929 | \param beta beta value |
---|
930 | \param tc tc value |
---|
931 | \param piSrc pointer to picture data |
---|
932 | */ |
---|
933 | __inline Bool TComLoopFilter::xUseStrongFiltering( Int offset, Int d, Int beta, Int tc, Pel* piSrc) |
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934 | { |
---|
935 | Pel m4 = piSrc[0]; |
---|
936 | Pel m3 = piSrc[-offset]; |
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937 | Pel m7 = piSrc[ offset*3]; |
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938 | Pel m0 = piSrc[-offset*4]; |
---|
939 | |
---|
940 | Int d_strong = abs(m0-m3) + abs(m7-m4); |
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941 | |
---|
942 | return ( (d_strong < (beta>>3)) && (d<(beta>>2)) && ( abs(m3-m4) < ((tc*5+1)>>1)) ); |
---|
943 | } |
---|
944 | |
---|
945 | __inline Int TComLoopFilter::xCalcDP( Pel* piSrc, Int iOffset) |
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946 | { |
---|
947 | return abs( piSrc[-iOffset*3] - 2*piSrc[-iOffset*2] + piSrc[-iOffset] ) ; |
---|
948 | } |
---|
949 | |
---|
950 | __inline Int TComLoopFilter::xCalcDQ( Pel* piSrc, Int iOffset) |
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951 | { |
---|
952 | return abs( piSrc[0] - 2*piSrc[iOffset] + piSrc[iOffset*2] ); |
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953 | } |
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954 | //! \} |
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