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) 2010-2012, 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 TComAdaptiveLoopFilter.cpp |
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35 | \brief adaptive loop filter class |
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36 | */ |
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37 | |
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38 | #include "TComAdaptiveLoopFilter.h" |
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39 | #include <string.h> |
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40 | #include <stdlib.h> |
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41 | #include <stdio.h> |
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42 | #include <math.h> |
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43 | |
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44 | //! \ingroup TLibCommon |
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45 | //! \{ |
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46 | |
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47 | |
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48 | |
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49 | // ==================================================================================================================== |
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50 | // Tables |
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51 | // ==================================================================================================================== |
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52 | |
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53 | Int TComAdaptiveLoopFilter::weightsShape1Sym[ALF_MAX_NUM_COEF+1] = |
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54 | { |
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55 | 2, |
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56 | 2, |
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57 | 2, 2, 2, |
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58 | 2, 2, 2, 2, 1, |
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59 | 1 |
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60 | }; |
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61 | Int* TComAdaptiveLoopFilter::weightsTabShapes[NUM_ALF_FILTER_SHAPE] = |
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62 | { |
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63 | weightsShape1Sym |
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64 | }; |
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65 | Int TComAdaptiveLoopFilter::m_sqrFiltLengthTab[NUM_ALF_FILTER_SHAPE] = |
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66 | { |
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67 | ALF_FILTER_LEN |
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68 | }; |
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69 | Int depthIntShape1Sym[ALF_MAX_NUM_COEF+1] = |
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70 | { |
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71 | 6, |
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72 | 7, |
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73 | 7, 8, 7, |
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74 | 5, 6, 7, 8, 9, |
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75 | 9 |
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76 | }; |
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77 | Int* pDepthIntTabShapes[NUM_ALF_FILTER_SHAPE] = |
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78 | { |
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79 | depthIntShape1Sym |
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80 | }; |
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81 | |
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82 | Int kTableShape1[ALF_MAX_NUM_COEF+1] = |
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83 | { |
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84 | 2, |
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85 | 3, |
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86 | 3, 4, 3, |
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87 | 1, 2, 3, 4, 1, |
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88 | 3 |
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89 | }; |
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90 | Int* kTableTabShapes[NUM_ALF_FILTER_SHAPE] = |
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91 | { |
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92 | kTableShape1 |
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93 | }; |
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94 | |
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95 | // ==================================================================================================================== |
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96 | // Constructor / destructor / create / destroy |
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97 | // ==================================================================================================================== |
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98 | |
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99 | const AlfCUCtrlInfo& AlfCUCtrlInfo::operator= (const AlfCUCtrlInfo& src) |
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100 | { |
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101 | this->cu_control_flag = src.cu_control_flag; |
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102 | this->alf_max_depth = src.alf_max_depth; |
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103 | this->num_alf_cu_flag = src.num_alf_cu_flag; |
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104 | this->alf_cu_flag = src.alf_cu_flag; |
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105 | return *this; |
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106 | } |
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107 | |
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108 | /// AlfCUCtrlInfo |
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109 | Void AlfCUCtrlInfo::reset() |
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110 | { |
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111 | cu_control_flag= 0; |
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112 | num_alf_cu_flag= 0; |
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113 | alf_max_depth = 0; |
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114 | alf_cu_flag.clear(); |
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115 | } |
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116 | |
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117 | /// ALFParam |
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118 | const ALFParam& ALFParam::operator= (const ALFParam& src) |
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119 | { |
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120 | if(this->componentID < 0) |
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121 | { |
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122 | this->create(src.componentID); |
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123 | } |
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124 | this->copy(src); |
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125 | return *this; |
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126 | } |
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127 | |
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128 | Void ALFParam::create(Int cID) |
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129 | { |
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130 | const Int numCoef = ALF_MAX_NUM_COEF; |
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131 | |
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132 | this->componentID = cID; |
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133 | this->alf_flag = 0; |
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134 | this->filters_per_group = 1; // this value keeps 1 for chroma componenet |
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135 | this->startSecondFilter = -1; |
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136 | this->predMethod = -1; |
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137 | this->minKStart = -1; |
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138 | this->filterPattern = NULL; |
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139 | this->nbSPred = NULL; |
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140 | this->kMinTab = NULL; |
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141 | this->coeffmulti = NULL; |
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142 | this->filter_shape = 0; |
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143 | this->num_coeff = numCoef; |
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144 | |
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145 | switch(cID) |
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146 | { |
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147 | case ALF_Y: |
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148 | { |
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149 | this->coeffmulti = new Int*[NO_VAR_BINS]; |
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150 | for(Int i=0; i< NO_VAR_BINS; i++) |
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151 | { |
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152 | this->coeffmulti[i] = new Int[numCoef]; |
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153 | ::memset(this->coeffmulti[i], 0, sizeof(Int)*numCoef); |
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154 | } |
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155 | this->filterPattern = new Int[NO_VAR_BINS]; |
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156 | ::memset(this->filterPattern, 0, sizeof(Int)*NO_VAR_BINS); |
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157 | |
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158 | this->nbSPred = new Int[NO_VAR_BINS]; |
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159 | ::memset(this->nbSPred, 0, sizeof(Int)*NO_VAR_BINS); |
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160 | |
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161 | this->kMinTab = new Int[42]; |
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162 | } |
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163 | break; |
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164 | case ALF_Cb: |
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165 | case ALF_Cr: |
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166 | { |
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167 | this->coeffmulti = new Int*[1]; |
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168 | this->coeffmulti[0] = new Int[numCoef]; |
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169 | } |
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170 | break; |
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171 | default: |
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172 | { |
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173 | printf("Not a legal component ID\n"); |
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174 | assert(0); |
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175 | exit(-1); |
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176 | } |
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177 | } |
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178 | } |
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179 | |
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180 | Void ALFParam::destroy() |
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181 | { |
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182 | if(this->componentID >=0) |
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183 | { |
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184 | switch(this->componentID) |
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185 | { |
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186 | case ALF_Y: |
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187 | { |
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188 | for(Int i=0; i< NO_VAR_BINS; i++) |
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189 | { |
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190 | delete[] this->coeffmulti[i]; |
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191 | } |
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192 | delete[] this->coeffmulti; |
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193 | delete[] this->filterPattern; |
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194 | delete[] this->nbSPred; |
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195 | delete[] this->kMinTab; |
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196 | } |
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197 | break; |
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198 | case ALF_Cb: |
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199 | case ALF_Cr: |
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200 | { |
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201 | delete[] this->coeffmulti[0]; |
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202 | delete[] this->coeffmulti; |
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203 | } |
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204 | break; |
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205 | default: |
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206 | { |
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207 | printf("Not a legal component ID\n"); |
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208 | assert(0); |
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209 | exit(-1); |
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210 | } |
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211 | } |
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212 | |
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213 | } |
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214 | } |
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215 | |
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216 | Void ALFParam::copy(const ALFParam& src) |
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217 | { |
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218 | const Int numCoef = ALF_MAX_NUM_COEF; |
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219 | |
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220 | this->componentID = src.componentID; |
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221 | this->alf_flag = src.alf_flag; |
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222 | if(this->alf_flag == 1) |
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223 | { |
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224 | this->filters_per_group = src.filters_per_group; |
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225 | this->filter_shape = src.filter_shape; |
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226 | this->num_coeff = src.num_coeff; |
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227 | |
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228 | switch(this->componentID) |
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229 | { |
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230 | case ALF_Cb: |
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231 | case ALF_Cr: |
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232 | { |
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233 | ::memcpy(this->coeffmulti[0], src.coeffmulti[0], sizeof(Int)*numCoef); |
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234 | } |
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235 | break; |
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236 | case ALF_Y: |
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237 | { |
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238 | this->startSecondFilter = src.startSecondFilter; |
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239 | this->predMethod = src.predMethod; |
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240 | this->minKStart = src.minKStart; |
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241 | ::memcpy(this->filterPattern, src.filterPattern, sizeof(Int)*NO_VAR_BINS); |
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242 | ::memcpy(this->nbSPred, src.nbSPred, sizeof(Int)*NO_VAR_BINS); |
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243 | ::memcpy(this->kMinTab, src.kMinTab, sizeof(Int)*42); |
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244 | |
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245 | for(Int i=0; i< (Int)NO_VAR_BINS; i++) |
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246 | { |
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247 | ::memcpy(this->coeffmulti[i], src.coeffmulti[i], sizeof(Int)*numCoef); |
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248 | } |
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249 | |
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250 | } |
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251 | break; |
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252 | default: |
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253 | { |
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254 | printf("not a legal component ID\n"); |
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255 | assert(0); |
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256 | exit(-1); |
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257 | } |
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258 | |
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259 | } |
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260 | } |
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261 | else |
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262 | { |
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263 | //reset |
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264 | this->filters_per_group = 0; |
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265 | this->filter_shape = 0; |
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266 | this->num_coeff = 0; |
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267 | } |
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268 | } |
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269 | |
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270 | /// AlfUnitParam |
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271 | AlfUnitParam::AlfUnitParam() |
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272 | { |
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273 | this->mergeType = ALF_MERGE_DISABLED; |
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274 | this->isEnabled = false; |
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275 | this->isNewFilt = false; |
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276 | this->storedFiltIdx = -1; |
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277 | this->alfFiltParam = NULL; |
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278 | |
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279 | } |
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280 | |
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281 | |
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282 | |
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283 | const AlfUnitParam& AlfUnitParam::operator= (const AlfUnitParam& src) |
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284 | { |
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285 | this->mergeType = src.mergeType; |
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286 | this->isEnabled = src.isEnabled; |
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287 | this->isNewFilt = src.isNewFilt; |
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288 | this->storedFiltIdx = src.storedFiltIdx; |
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289 | this->alfFiltParam = src.alfFiltParam; // just a pointer assignment and no additional memory allocation |
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290 | |
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291 | return *this; |
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292 | } |
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293 | |
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294 | Bool AlfUnitParam::operator == (const AlfUnitParam& cmp) |
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295 | { |
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296 | if( isEnabled != cmp.isEnabled) |
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297 | { |
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298 | return false; |
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299 | } |
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300 | |
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301 | //enable flags are the same |
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302 | if(!isEnabled) |
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303 | { |
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304 | return true; |
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305 | } |
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306 | |
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307 | //both enabled |
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308 | assert(alfFiltParam->alf_flag == 1); |
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309 | |
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310 | const Int numCoef = ALF_MAX_NUM_COEF; |
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311 | ALFParam* cmpAlfParam = cmp.alfFiltParam; |
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312 | |
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313 | if(alfFiltParam->componentID == ALF_Y) |
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314 | { |
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315 | if(alfFiltParam->filters_per_group != cmpAlfParam->filters_per_group) |
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316 | { |
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317 | return false; |
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318 | } |
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319 | if(alfFiltParam->predMethod != cmpAlfParam->predMethod) |
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320 | { |
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321 | return false; |
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322 | } |
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323 | if(alfFiltParam->minKStart != cmpAlfParam->minKStart) |
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324 | { |
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325 | return false; |
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326 | } |
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327 | if(alfFiltParam->filters_per_group == 2) |
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328 | { |
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329 | if(alfFiltParam->startSecondFilter != cmpAlfParam->startSecondFilter) |
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330 | { |
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331 | return false; |
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332 | } |
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333 | } |
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334 | if (alfFiltParam->filters_per_group > 1) |
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335 | { |
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336 | for (Int i=0; i<NO_VAR_BINS; i++) |
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337 | { |
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338 | if (alfFiltParam->filterPattern[i] != cmpAlfParam->filterPattern[i]) |
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339 | { |
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340 | return false; |
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341 | } |
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342 | } |
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343 | } |
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344 | for (Int i=0; i<alfFiltParam->filters_per_group; i++) |
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345 | { |
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346 | if (alfFiltParam->nbSPred[i] != cmpAlfParam->nbSPred[i]) |
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347 | { |
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348 | return false; |
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349 | } |
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350 | } |
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351 | } |
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352 | for(Int f=0; f< alfFiltParam->filters_per_group; f++) |
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353 | { |
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354 | for(Int i=0; i< numCoef; i++) |
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355 | { |
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356 | if(alfFiltParam->coeffmulti[f][i] != cmpAlfParam->coeffmulti[f][i]) |
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357 | { |
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358 | return false; |
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359 | } |
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360 | } |
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361 | } |
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362 | |
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363 | return true; |
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364 | } |
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365 | |
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366 | |
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367 | /// AlfParamSet |
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368 | Void AlfParamSet::init() |
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369 | { |
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370 | destroy(); |
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371 | create(); |
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372 | } |
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373 | |
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374 | Void AlfParamSet::releaseALFParam() |
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375 | { |
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376 | for(Int c=0; c< NUM_ALF_COMPONENT; c++) |
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377 | { |
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378 | if(alfUnitParam[c] != NULL) |
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379 | { |
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380 | for(Int n=0; n< numLCU; n++) |
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381 | { |
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382 | if(alfUnitParam[c][n].alfFiltParam != NULL) |
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383 | { |
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384 | delete alfUnitParam[c][n].alfFiltParam; |
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385 | alfUnitParam[c][n].alfFiltParam = NULL; |
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386 | } |
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387 | } |
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388 | } |
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389 | } |
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390 | |
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391 | } |
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392 | |
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393 | Void AlfParamSet::createALFParam() |
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394 | { |
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395 | for(Int c=0; c< NUM_ALF_COMPONENT; c++) |
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396 | { |
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397 | for(Int n=0; n< numLCU; n++) |
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398 | { |
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399 | alfUnitParam[c][n].alfFiltParam = new ALFParam(c); |
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400 | } |
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401 | } |
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402 | } |
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403 | |
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404 | /** Create ALF parameter set |
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405 | * \param [in] width number of LCU in width |
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406 | * \param [in] height number of LCU in height |
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407 | * \param [in] num number of LCU in one picture |
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408 | */ |
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409 | Void AlfParamSet::create(Int width, Int height, Int num) |
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410 | { |
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411 | numLCU = num; |
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412 | numLCUInHeight = height; |
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413 | numLCUInWidth = width; |
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414 | |
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415 | for(Int c=0; c< NUM_ALF_COMPONENT; c++) |
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416 | { |
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417 | isEnabled[c] = false; |
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418 | isUniParam[c]= false; |
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419 | if(num !=0) |
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420 | { |
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421 | alfUnitParam[c] = new AlfUnitParam[num]; |
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422 | } |
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423 | else |
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424 | { |
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425 | alfUnitParam[c] = NULL; |
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426 | } |
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427 | } |
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428 | |
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429 | } |
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430 | |
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431 | Void AlfParamSet::destroy() |
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432 | { |
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433 | for(Int c=0; c< NUM_ALF_COMPONENT; c++) |
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434 | { |
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435 | if(alfUnitParam[c] != NULL) |
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436 | { |
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437 | delete[] alfUnitParam[c]; |
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438 | alfUnitParam[c] = NULL; |
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439 | } |
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440 | } |
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441 | } |
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442 | |
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443 | |
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444 | |
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445 | |
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446 | |
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447 | TComAdaptiveLoopFilter::TComAdaptiveLoopFilter() |
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448 | { |
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449 | m_pcTempPicYuv = NULL; |
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450 | m_iSGDepth = 0; |
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451 | m_pcPic = NULL; |
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452 | m_ppSliceAlfLCUs = NULL; |
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453 | m_pvpAlfLCU = NULL; |
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454 | m_pvpSliceTileAlfLCU = NULL; |
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455 | for(Int c=0; c< NUM_ALF_COMPONENT; c++) |
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456 | { |
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457 | m_alfFiltInfo[c] = NULL; |
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458 | } |
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459 | m_varImg = NULL; |
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460 | m_filterCoeffSym = NULL; |
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461 | |
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462 | } |
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463 | |
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464 | Void TComAdaptiveLoopFilter:: xError(const char *text, int code) |
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465 | { |
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466 | fprintf(stderr, "%s\n", text); |
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467 | exit(code); |
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468 | } |
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469 | |
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470 | Void TComAdaptiveLoopFilter:: no_mem_exit(const char *where) |
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471 | { |
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472 | char errortext[200]; |
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473 | sprintf(errortext, "Could not allocate memory: %s",where); |
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474 | xError (errortext, 100); |
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475 | } |
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476 | |
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477 | Void TComAdaptiveLoopFilter::initMatrix_Pel(Pel ***m2D, int d1, int d2) |
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478 | { |
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479 | int i; |
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480 | |
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481 | if(!(*m2D = (Pel **) calloc(d1, sizeof(Pel *)))) |
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482 | { |
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483 | FATAL_ERROR_0("initMatrix_Pel: memory allocation problem\n", -1); |
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484 | } |
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485 | if(!((*m2D)[0] = (Pel *) calloc(d1 * d2, sizeof(Pel)))) |
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486 | { |
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487 | FATAL_ERROR_0("initMatrix_Pel: memory allocation problem\n", -1); |
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488 | } |
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489 | |
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490 | for(i = 1; i < d1; i++) |
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491 | { |
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492 | (*m2D)[i] = (*m2D)[i-1] + d2; |
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493 | } |
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494 | } |
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495 | |
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496 | Void TComAdaptiveLoopFilter::initMatrix_int(int ***m2D, int d1, int d2) |
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497 | { |
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498 | int i; |
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499 | |
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500 | if(!(*m2D = (int **) calloc(d1, sizeof(int *)))) |
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501 | { |
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502 | FATAL_ERROR_0("initMatrix_int: memory allocation problem\n", -1); |
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503 | } |
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504 | if(!((*m2D)[0] = (int *) calloc(d1 * d2, sizeof(int)))) |
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505 | { |
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506 | FATAL_ERROR_0("initMatrix_int: memory allocation problem\n", -1); |
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507 | } |
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508 | |
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509 | for(i = 1; i < d1; i++) |
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510 | { |
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511 | (*m2D)[i] = (*m2D)[i-1] + d2; |
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512 | } |
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513 | } |
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514 | |
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515 | Void TComAdaptiveLoopFilter::destroyMatrix_int(int **m2D) |
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516 | { |
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517 | if(m2D) |
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518 | { |
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519 | if(m2D[0]) |
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520 | { |
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521 | free(m2D[0]); |
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522 | } |
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523 | else |
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524 | { |
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525 | FATAL_ERROR_0("destroyMatrix_int: memory free problem\n", -1); |
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526 | } |
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527 | free(m2D); |
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528 | } |
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529 | else |
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530 | { |
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531 | FATAL_ERROR_0("destroyMatrix_int: memory free problem\n", -1); |
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532 | } |
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533 | } |
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534 | |
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535 | Void TComAdaptiveLoopFilter::destroyMatrix_Pel(Pel **m2D) |
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536 | { |
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537 | if(m2D) |
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538 | { |
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539 | if(m2D[0]) |
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540 | { |
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541 | free(m2D[0]); |
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542 | } |
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543 | else |
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544 | { |
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545 | FATAL_ERROR_0("destroyMatrix_Pel: memory free problem\n", -1); |
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546 | } |
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547 | free(m2D); |
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548 | } |
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549 | else |
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550 | { |
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551 | FATAL_ERROR_0("destroyMatrix_Pel: memory free problem\n", -1); |
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552 | } |
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553 | } |
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554 | |
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555 | Void TComAdaptiveLoopFilter::initMatrix_double(double ***m2D, int d1, int d2) |
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556 | { |
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557 | int i; |
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558 | |
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559 | if(!(*m2D = (double **) calloc(d1, sizeof(double *)))) |
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560 | { |
---|
561 | FATAL_ERROR_0("initMatrix_double: memory allocation problem\n", -1); |
---|
562 | } |
---|
563 | if(!((*m2D)[0] = (double *) calloc(d1 * d2, sizeof(double)))) |
---|
564 | { |
---|
565 | FATAL_ERROR_0("initMatrix_double: memory allocation problem\n", -1); |
---|
566 | } |
---|
567 | |
---|
568 | for(i = 1; i < d1; i++) |
---|
569 | { |
---|
570 | (*m2D)[i] = (*m2D)[i-1] + d2; |
---|
571 | } |
---|
572 | } |
---|
573 | |
---|
574 | Void TComAdaptiveLoopFilter::initMatrix3D_double(double ****m3D, int d1, int d2, int d3) |
---|
575 | { |
---|
576 | int j; |
---|
577 | |
---|
578 | if(!((*m3D) = (double ***) calloc(d1, sizeof(double **)))) |
---|
579 | { |
---|
580 | FATAL_ERROR_0("initMatrix3D_double: memory allocation problem\n", -1); |
---|
581 | } |
---|
582 | |
---|
583 | for(j = 0; j < d1; j++) |
---|
584 | { |
---|
585 | initMatrix_double((*m3D) + j, d2, d3); |
---|
586 | } |
---|
587 | } |
---|
588 | |
---|
589 | |
---|
590 | Void TComAdaptiveLoopFilter::initMatrix4D_double(double *****m4D, int d1, int d2, int d3, int d4) |
---|
591 | { |
---|
592 | int j; |
---|
593 | |
---|
594 | if(!((*m4D) = (double ****) calloc(d1, sizeof(double ***)))) |
---|
595 | { |
---|
596 | FATAL_ERROR_0("initMatrix4D_double: memory allocation problem\n", -1); |
---|
597 | } |
---|
598 | |
---|
599 | for(j = 0; j < d1; j++) |
---|
600 | { |
---|
601 | initMatrix3D_double((*m4D) + j, d2, d3, d4); |
---|
602 | } |
---|
603 | } |
---|
604 | |
---|
605 | |
---|
606 | Void TComAdaptiveLoopFilter::destroyMatrix_double(double **m2D) |
---|
607 | { |
---|
608 | if(m2D) |
---|
609 | { |
---|
610 | if(m2D[0]) |
---|
611 | { |
---|
612 | free(m2D[0]); |
---|
613 | } |
---|
614 | else |
---|
615 | { |
---|
616 | FATAL_ERROR_0("destroyMatrix_double: memory free problem\n", -1); |
---|
617 | } |
---|
618 | free(m2D); |
---|
619 | } |
---|
620 | else |
---|
621 | { |
---|
622 | FATAL_ERROR_0("destroyMatrix_double: memory free problem\n", -1); |
---|
623 | } |
---|
624 | } |
---|
625 | |
---|
626 | Void TComAdaptiveLoopFilter::destroyMatrix3D_double(double ***m3D, int d1) |
---|
627 | { |
---|
628 | int i; |
---|
629 | |
---|
630 | if(m3D) |
---|
631 | { |
---|
632 | for(i = 0; i < d1; i++) |
---|
633 | { |
---|
634 | destroyMatrix_double(m3D[i]); |
---|
635 | } |
---|
636 | free(m3D); |
---|
637 | } |
---|
638 | else |
---|
639 | { |
---|
640 | FATAL_ERROR_0("destroyMatrix3D_double: memory free problem\n", -1); |
---|
641 | } |
---|
642 | } |
---|
643 | |
---|
644 | |
---|
645 | Void TComAdaptiveLoopFilter::destroyMatrix4D_double(double ****m4D, int d1, int d2) |
---|
646 | { |
---|
647 | int j; |
---|
648 | |
---|
649 | if(m4D) |
---|
650 | { |
---|
651 | for(j = 0; j < d1; j++) |
---|
652 | { |
---|
653 | destroyMatrix3D_double(m4D[j], d2); |
---|
654 | } |
---|
655 | free(m4D); |
---|
656 | } |
---|
657 | else |
---|
658 | { |
---|
659 | FATAL_ERROR_0("destroyMatrix4D_double: memory free problem\n", -1); |
---|
660 | } |
---|
661 | } |
---|
662 | |
---|
663 | Void TComAdaptiveLoopFilter::create( Int iPicWidth, Int iPicHeight, UInt uiMaxCUWidth, UInt uiMaxCUHeight, UInt uiMaxCUDepth ) |
---|
664 | { |
---|
665 | destroy(); |
---|
666 | if ( !m_pcTempPicYuv ) |
---|
667 | { |
---|
668 | m_pcTempPicYuv = new TComPicYuv; |
---|
669 | m_pcTempPicYuv->create( iPicWidth, iPicHeight, uiMaxCUWidth, uiMaxCUHeight, uiMaxCUDepth ); |
---|
670 | } |
---|
671 | m_img_height = iPicHeight; |
---|
672 | m_img_width = iPicWidth; |
---|
673 | initMatrix_Pel(&(m_varImg), m_img_height, m_img_width); |
---|
674 | initMatrix_int(&m_filterCoeffSym, NO_VAR_BINS, ALF_MAX_NUM_COEF); |
---|
675 | UInt uiNumLCUsInWidth = m_img_width / uiMaxCUWidth; |
---|
676 | UInt uiNumLCUsInHeight = m_img_height / uiMaxCUHeight; |
---|
677 | |
---|
678 | uiNumLCUsInWidth += ( m_img_width % uiMaxCUWidth ) ? 1 : 0; |
---|
679 | uiNumLCUsInHeight += ( m_img_height % uiMaxCUHeight ) ? 1 : 0; |
---|
680 | |
---|
681 | m_uiNumCUsInFrame = uiNumLCUsInWidth* uiNumLCUsInHeight; |
---|
682 | |
---|
683 | m_numLCUInPicWidth = uiNumLCUsInWidth; |
---|
684 | m_numLCUInPicHeight= uiNumLCUsInHeight; |
---|
685 | m_lcuHeight = uiMaxCUHeight; |
---|
686 | m_lineIdxPadBot = m_lcuHeight - 4 - 3; // DFRegion, Vertical Taps |
---|
687 | m_lineIdxPadTop = m_lcuHeight - 4; // DFRegion |
---|
688 | |
---|
689 | m_lcuHeightChroma = m_lcuHeight>>1; |
---|
690 | m_lineIdxPadBotChroma = m_lcuHeightChroma - 2 - 3; // DFRegion, Vertical Taps |
---|
691 | m_lineIdxPadTopChroma = m_lcuHeightChroma - 2 ; // DFRegion |
---|
692 | |
---|
693 | createLCUAlfInfo(); |
---|
694 | } |
---|
695 | |
---|
696 | Void TComAdaptiveLoopFilter::destroy() |
---|
697 | { |
---|
698 | if ( m_pcTempPicYuv ) |
---|
699 | { |
---|
700 | m_pcTempPicYuv->destroy(); |
---|
701 | delete m_pcTempPicYuv; |
---|
702 | m_pcTempPicYuv = NULL; |
---|
703 | } |
---|
704 | if(m_varImg != NULL) |
---|
705 | { |
---|
706 | destroyMatrix_Pel( m_varImg ); |
---|
707 | m_varImg = NULL; |
---|
708 | } |
---|
709 | if(m_filterCoeffSym != NULL) |
---|
710 | { |
---|
711 | destroyMatrix_int(m_filterCoeffSym); |
---|
712 | m_filterCoeffSym = NULL; |
---|
713 | } |
---|
714 | destroyLCUAlfInfo(); |
---|
715 | |
---|
716 | } |
---|
717 | |
---|
718 | |
---|
719 | // -------------------------------------------------------------------------------------------------------------------- |
---|
720 | // interface function for actual ALF process |
---|
721 | // -------------------------------------------------------------------------------------------------------------------- |
---|
722 | |
---|
723 | /** ALF reconstruction process for one picture |
---|
724 | * \param [in, out] pcPic the decoded/filtered picture (input: decoded picture; output filtered picture) |
---|
725 | * \param [in] vAlfCUCtrlParam ALF CU-on/off control parameters |
---|
726 | * \param [in] isAlfCoefInSlice ALF coefficient in slice (true) or ALF coefficient in APS (false) |
---|
727 | */ |
---|
728 | Void TComAdaptiveLoopFilter::ALFProcess(TComPic* pcPic, std::vector<AlfCUCtrlInfo>& vAlfCUCtrlParam, Bool isAlfCoefInSlice) |
---|
729 | { |
---|
730 | TComPicYuv* pcPicYuvRec = pcPic->getPicYuvRec(); |
---|
731 | TComPicYuv* pcPicYuvExtRec = m_pcTempPicYuv; |
---|
732 | pcPicYuvRec ->copyToPic ( pcPicYuvExtRec ); |
---|
733 | pcPicYuvExtRec->setBorderExtension ( false ); |
---|
734 | pcPicYuvExtRec->extendPicBorder (); |
---|
735 | |
---|
736 | Int lumaStride = pcPicYuvExtRec->getStride(); |
---|
737 | Int chromaStride = pcPicYuvExtRec->getCStride(); |
---|
738 | |
---|
739 | for(Int compIdx =0; compIdx < NUM_ALF_COMPONENT; compIdx++) |
---|
740 | { |
---|
741 | Pel* pDec = getPicBuf(pcPicYuvExtRec, compIdx); |
---|
742 | Pel* pRest = getPicBuf(pcPicYuvRec, compIdx); |
---|
743 | Int stride = (compIdx == ALF_Y)?(lumaStride):(chromaStride); |
---|
744 | Int formatShift = (compIdx == ALF_Y)?(0):(1); |
---|
745 | |
---|
746 | ALFParam** alfLCUParamComp = m_alfFiltInfo[compIdx]; |
---|
747 | |
---|
748 | if(!isEnabledComponent(alfLCUParamComp)) |
---|
749 | { |
---|
750 | continue; |
---|
751 | } |
---|
752 | |
---|
753 | switch(compIdx) |
---|
754 | { |
---|
755 | case ALF_Cb: |
---|
756 | case ALF_Cr: |
---|
757 | { |
---|
758 | recALF(compIdx, alfLCUParamComp, pDec, pRest, stride, formatShift, NULL, false); |
---|
759 | } |
---|
760 | break; |
---|
761 | case ALF_Y: |
---|
762 | { |
---|
763 | std::vector<AlfCUCtrlInfo>* alfCUCtrlParam = NULL; |
---|
764 | if(!isAlfCoefInSlice) |
---|
765 | { |
---|
766 | alfCUCtrlParam = &vAlfCUCtrlParam; |
---|
767 | assignAlfOnOffControlFlags(pcPic, *alfCUCtrlParam); |
---|
768 | } |
---|
769 | |
---|
770 | memset(&m_varImg[0][0], 0, sizeof(Pel)*(m_img_height*m_img_width)); |
---|
771 | |
---|
772 | //calcOneRegionVar(m_varImg, pDec, stride, false, 0, m_img_height, 0, m_img_width); |
---|
773 | recALF(compIdx, alfLCUParamComp, pDec, pRest, stride, formatShift, alfCUCtrlParam, true); |
---|
774 | } |
---|
775 | break; |
---|
776 | default: |
---|
777 | { |
---|
778 | printf("Not a legal component ID for ALF\n"); |
---|
779 | assert(0); |
---|
780 | exit(-1); |
---|
781 | } |
---|
782 | } |
---|
783 | } |
---|
784 | |
---|
785 | } |
---|
786 | |
---|
787 | /** Check the filter process of one component is enable |
---|
788 | * \param [in] alfLCUParam ALF parameters |
---|
789 | */ |
---|
790 | Bool TComAdaptiveLoopFilter::isEnabledComponent(ALFParam** alfLCUParam) |
---|
791 | { |
---|
792 | Bool isEnabled = false; |
---|
793 | for(Int n=0; n< m_uiNumCUsInFrame; n++) |
---|
794 | { |
---|
795 | if(alfLCUParam[n]->alf_flag == 1) |
---|
796 | { |
---|
797 | isEnabled = true; |
---|
798 | break; |
---|
799 | } |
---|
800 | } |
---|
801 | return isEnabled; |
---|
802 | } |
---|
803 | |
---|
804 | |
---|
805 | /** ALF Reconstruction for each component |
---|
806 | * \param [in] compIdx color component index |
---|
807 | * \param [in] alfLCUParams alf parameters |
---|
808 | * \param [in] pDec decoded picture |
---|
809 | * \param [in, out] pRest filtered picture |
---|
810 | * \param [in] stride picture stride in memory |
---|
811 | * \param [in] formatShift luma component (false) or chroma component (1) |
---|
812 | * \param [in] alfCUCtrlParam ALF CU-on/off control parameters |
---|
813 | * \param [in] caculateBAIdx calculate BA filter index (true) or BA filter index array is ready (false) |
---|
814 | */ |
---|
815 | Void TComAdaptiveLoopFilter::recALF(Int compIdx, ALFParam** alfLCUParams,Pel* pDec, Pel* pRest, Int stride, Int formatShift |
---|
816 | , std::vector<AlfCUCtrlInfo>* alfCUCtrlParam //default: NULL |
---|
817 | , Bool caculateBAIdx //default: false |
---|
818 | ) |
---|
819 | { |
---|
820 | for(Int s=0; s< m_uiNumSlicesInPic; s++) |
---|
821 | { |
---|
822 | if(!m_pcPic->getValidSlice(s)) |
---|
823 | { |
---|
824 | continue; |
---|
825 | } |
---|
826 | Int numTilesInSlice = (Int)m_pvpSliceTileAlfLCU[s].size(); |
---|
827 | for(Int t=0; t< numTilesInSlice; t++) |
---|
828 | { |
---|
829 | std::vector<AlfLCUInfo*> & vpAlfLCU = m_pvpSliceTileAlfLCU[s][t]; |
---|
830 | Pel* pSrc = pDec; |
---|
831 | |
---|
832 | if(m_bUseNonCrossALF) |
---|
833 | { |
---|
834 | pSrc = getPicBuf(m_pcSliceYuvTmp, compIdx); |
---|
835 | copyRegion(vpAlfLCU, pSrc, pDec, stride, formatShift); |
---|
836 | extendRegionBorder(vpAlfLCU, pSrc, stride, formatShift); |
---|
837 | } |
---|
838 | |
---|
839 | Bool isOnOffCtrlEnabled = (alfCUCtrlParam == NULL)?(false):( (*alfCUCtrlParam)[s].cu_control_flag == 1 ); |
---|
840 | |
---|
841 | if(isOnOffCtrlEnabled) |
---|
842 | { |
---|
843 | assert(compIdx == ALF_Y); |
---|
844 | filterRegionCUControl(alfLCUParams, vpAlfLCU, pSrc, pRest, stride, caculateBAIdx); |
---|
845 | } |
---|
846 | else |
---|
847 | { |
---|
848 | filterRegion(compIdx, alfLCUParams, vpAlfLCU, pSrc, pRest, stride, formatShift, caculateBAIdx); |
---|
849 | } |
---|
850 | } //tile |
---|
851 | } //slice |
---|
852 | } |
---|
853 | |
---|
854 | |
---|
855 | /** assign ALC CU-On/Off Control parameters |
---|
856 | * \param [in, out] pcPic picture data |
---|
857 | * \param [in] vAlfCUCtrlParam ALF CU-on/off control parameters |
---|
858 | */ |
---|
859 | Void TComAdaptiveLoopFilter::assignAlfOnOffControlFlags(TComPic* pcPic, std::vector<AlfCUCtrlInfo>& vAlfCUCtrlParam) |
---|
860 | { |
---|
861 | if(m_uiNumSlicesInPic == 1) |
---|
862 | { |
---|
863 | AlfCUCtrlInfo* pcAlfCtrlParam = &(vAlfCUCtrlParam[0]); |
---|
864 | if(pcAlfCtrlParam->cu_control_flag) |
---|
865 | { |
---|
866 | UInt idx = 0; |
---|
867 | for(UInt uiCUAddr = 0; uiCUAddr < pcPic->getNumCUsInFrame(); uiCUAddr++) |
---|
868 | { |
---|
869 | TComDataCU *pcCU = pcPic->getCU(uiCUAddr); |
---|
870 | setAlfCtrlFlags(pcAlfCtrlParam, pcCU, 0, 0, idx); |
---|
871 | } |
---|
872 | } |
---|
873 | } |
---|
874 | else |
---|
875 | { |
---|
876 | transferCtrlFlagsFromAlfParam(vAlfCUCtrlParam); |
---|
877 | } |
---|
878 | |
---|
879 | } |
---|
880 | |
---|
881 | // ==================================================================================================================== |
---|
882 | // Protected member functions |
---|
883 | // ==================================================================================================================== |
---|
884 | |
---|
885 | /** |
---|
886 | \param filter filter coefficient |
---|
887 | \param filterLength filter length |
---|
888 | \param isChroma 1: chroma, 0: luma |
---|
889 | */ |
---|
890 | Void TComAdaptiveLoopFilter::checkFilterCoeffValue( Int *filter, Int filterLength, Bool isChroma ) |
---|
891 | { |
---|
892 | #if LCUALF_QP_DEPENDENT_BITS |
---|
893 | Int alfPrecisionBit = getAlfPrecisionBit( m_alfQP ); |
---|
894 | |
---|
895 | Int maxValueNonCenter = 1 * (1 << alfPrecisionBit) - 1; |
---|
896 | Int minValueNonCenter = 0 - 1 * (1 << alfPrecisionBit); |
---|
897 | |
---|
898 | Int maxValueCenter = 2 * (1 << alfPrecisionBit) - 1; |
---|
899 | #else |
---|
900 | Int maxValueNonCenter = 1 * (1 << ALF_NUM_BIT_SHIFT) - 1; |
---|
901 | Int minValueNonCenter = 0 - 1 * (1 << ALF_NUM_BIT_SHIFT); |
---|
902 | |
---|
903 | Int maxValueCenter = 2 * (1 << ALF_NUM_BIT_SHIFT) - 1; |
---|
904 | #endif |
---|
905 | Int minValueCenter = 0 ; |
---|
906 | |
---|
907 | for(Int i = 0; i < filterLength-1; i++) |
---|
908 | { |
---|
909 | filter[i] = Clip3(minValueNonCenter, maxValueNonCenter, filter[i]); |
---|
910 | } |
---|
911 | |
---|
912 | filter[filterLength-1] = Clip3(minValueCenter, maxValueCenter, filter[filterLength-1]); |
---|
913 | } |
---|
914 | |
---|
915 | |
---|
916 | static Pel Clip_post(int high, int val) |
---|
917 | { |
---|
918 | return (Pel)(((val > high)? high: val)); |
---|
919 | } |
---|
920 | |
---|
921 | |
---|
922 | Void TComAdaptiveLoopFilter::setAlfCtrlFlags(AlfCUCtrlInfo* pAlfParam, TComDataCU *pcCU, UInt uiAbsPartIdx, UInt uiDepth, UInt &idx) |
---|
923 | { |
---|
924 | TComPic* pcPic = pcCU->getPic(); |
---|
925 | UInt uiCurNumParts = pcPic->getNumPartInCU() >> (uiDepth<<1); |
---|
926 | UInt uiQNumParts = uiCurNumParts>>2; |
---|
927 | |
---|
928 | Bool bBoundary = false; |
---|
929 | UInt uiLPelX = pcCU->getCUPelX() + g_auiRasterToPelX[ g_auiZscanToRaster[uiAbsPartIdx] ]; |
---|
930 | UInt uiRPelX = uiLPelX + (g_uiMaxCUWidth>>uiDepth) - 1; |
---|
931 | UInt uiTPelY = pcCU->getCUPelY() + g_auiRasterToPelY[ g_auiZscanToRaster[uiAbsPartIdx] ]; |
---|
932 | UInt uiBPelY = uiTPelY + (g_uiMaxCUHeight>>uiDepth) - 1; |
---|
933 | |
---|
934 | if( ( uiRPelX >= pcCU->getSlice()->getSPS()->getPicWidthInLumaSamples() ) || ( uiBPelY >= pcCU->getSlice()->getSPS()->getPicHeightInLumaSamples() ) ) |
---|
935 | { |
---|
936 | bBoundary = true; |
---|
937 | } |
---|
938 | |
---|
939 | if( ( ( uiDepth < pcCU->getDepth( uiAbsPartIdx ) ) && ( uiDepth < g_uiMaxCUDepth - g_uiAddCUDepth ) ) || bBoundary ) |
---|
940 | { |
---|
941 | UInt uiIdx = uiAbsPartIdx; |
---|
942 | for ( UInt uiPartUnitIdx = 0; uiPartUnitIdx < 4; uiPartUnitIdx++ ) |
---|
943 | { |
---|
944 | uiLPelX = pcCU->getCUPelX() + g_auiRasterToPelX[ g_auiZscanToRaster[uiIdx] ]; |
---|
945 | uiTPelY = pcCU->getCUPelY() + g_auiRasterToPelY[ g_auiZscanToRaster[uiIdx] ]; |
---|
946 | |
---|
947 | if( ( uiLPelX < pcCU->getSlice()->getSPS()->getPicWidthInLumaSamples() ) && ( uiTPelY < pcCU->getSlice()->getSPS()->getPicHeightInLumaSamples() ) ) |
---|
948 | { |
---|
949 | setAlfCtrlFlags(pAlfParam, pcCU, uiIdx, uiDepth+1, idx); |
---|
950 | } |
---|
951 | uiIdx += uiQNumParts; |
---|
952 | } |
---|
953 | |
---|
954 | return; |
---|
955 | } |
---|
956 | |
---|
957 | if( uiDepth <= pAlfParam->alf_max_depth || pcCU->isFirstAbsZorderIdxInDepth(uiAbsPartIdx, pAlfParam->alf_max_depth)) |
---|
958 | { |
---|
959 | if (uiDepth > pAlfParam->alf_max_depth) |
---|
960 | { |
---|
961 | pcCU->setAlfCtrlFlagSubParts(pAlfParam->alf_cu_flag[idx], uiAbsPartIdx, pAlfParam->alf_max_depth); |
---|
962 | } |
---|
963 | else |
---|
964 | { |
---|
965 | pcCU->setAlfCtrlFlagSubParts(pAlfParam->alf_cu_flag[idx], uiAbsPartIdx, uiDepth ); |
---|
966 | } |
---|
967 | idx++; |
---|
968 | } |
---|
969 | } |
---|
970 | |
---|
971 | /** Initialize the variables for one ALF LCU |
---|
972 | * \param rAlfLCU to-be-initialized ALF LCU |
---|
973 | * \param sliceID slice index |
---|
974 | * \param tileID tile index |
---|
975 | * \param pcCU CU data pointer |
---|
976 | * \param maxNumSUInLCU maximum number of SUs in one LCU |
---|
977 | */ |
---|
978 | Void TComAdaptiveLoopFilter::InitAlfLCUInfo(AlfLCUInfo& rAlfLCU, Int sliceID, Int tileID, TComDataCU* pcCU, UInt maxNumSUInLCU) |
---|
979 | { |
---|
980 | //pcCU |
---|
981 | rAlfLCU.pcCU = pcCU; |
---|
982 | //sliceID |
---|
983 | rAlfLCU.sliceID = sliceID; |
---|
984 | //tileID |
---|
985 | rAlfLCU.tileID = tileID; |
---|
986 | |
---|
987 | //numSGU, vpAlfBLock; |
---|
988 | std::vector<NDBFBlockInfo>& vNDBFBlock = *(pcCU->getNDBFilterBlocks()); |
---|
989 | rAlfLCU.vpAlfBlock.clear(); |
---|
990 | rAlfLCU.numSGU = 0; |
---|
991 | for(Int i=0; i< vNDBFBlock.size(); i++) |
---|
992 | { |
---|
993 | if( vNDBFBlock[i].sliceID == sliceID) |
---|
994 | { |
---|
995 | rAlfLCU.vpAlfBlock.push_back( &(vNDBFBlock[i]) ); |
---|
996 | rAlfLCU.numSGU ++; |
---|
997 | } |
---|
998 | } |
---|
999 | //startSU |
---|
1000 | rAlfLCU.startSU = rAlfLCU.vpAlfBlock.front()->startSU; |
---|
1001 | //endSU |
---|
1002 | rAlfLCU.endSU = rAlfLCU.vpAlfBlock.back()->endSU; |
---|
1003 | //bAllSUsInLCUInSameSlice |
---|
1004 | rAlfLCU.bAllSUsInLCUInSameSlice = (rAlfLCU.startSU == 0)&&( rAlfLCU.endSU == maxNumSUInLCU -1); |
---|
1005 | } |
---|
1006 | |
---|
1007 | /** create and initialize variables for picture ALF processing |
---|
1008 | * \param pcPic picture-level data pointer |
---|
1009 | * \param numSlicesInPic number of slices in picture |
---|
1010 | */ |
---|
1011 | Void TComAdaptiveLoopFilter::createPicAlfInfo(TComPic* pcPic, Int numSlicesInPic, Int alfQP) |
---|
1012 | { |
---|
1013 | m_uiNumSlicesInPic = numSlicesInPic; |
---|
1014 | m_iSGDepth = pcPic->getSliceGranularityForNDBFilter(); |
---|
1015 | |
---|
1016 | m_bUseNonCrossALF = ( pcPic->getIndependentSliceBoundaryForNDBFilter() || pcPic->getIndependentTileBoundaryForNDBFilter()); |
---|
1017 | m_pcPic = pcPic; |
---|
1018 | |
---|
1019 | m_isNonCrossSlice = pcPic->getIndependentSliceBoundaryForNDBFilter(); |
---|
1020 | m_suWidth = pcPic->getMinCUWidth(); |
---|
1021 | m_suHeight= pcPic->getMinCUHeight(); |
---|
1022 | m_alfQP = alfQP; |
---|
1023 | m_ppSliceAlfLCUs = new AlfLCUInfo*[m_uiNumSlicesInPic]; |
---|
1024 | m_pvpAlfLCU = new std::vector< AlfLCUInfo* >[m_uiNumSlicesInPic]; |
---|
1025 | m_pvpSliceTileAlfLCU = new std::vector< std::vector< AlfLCUInfo* > >[m_uiNumSlicesInPic]; |
---|
1026 | |
---|
1027 | for(Int s=0; s< m_uiNumSlicesInPic; s++) |
---|
1028 | { |
---|
1029 | m_ppSliceAlfLCUs[s] = NULL; |
---|
1030 | if(!pcPic->getValidSlice(s)) |
---|
1031 | { |
---|
1032 | continue; |
---|
1033 | } |
---|
1034 | |
---|
1035 | std::vector< TComDataCU* >& vSliceLCUPointers = pcPic->getOneSliceCUDataForNDBFilter(s); |
---|
1036 | Int numLCU = (Int)vSliceLCUPointers.size(); |
---|
1037 | |
---|
1038 | //create Alf LCU info |
---|
1039 | m_ppSliceAlfLCUs[s] = new AlfLCUInfo[numLCU]; |
---|
1040 | for(Int i=0; i< numLCU; i++) |
---|
1041 | { |
---|
1042 | TComDataCU* pcCU = vSliceLCUPointers[i]; |
---|
1043 | if(pcCU->getPic()==0) |
---|
1044 | { |
---|
1045 | continue; |
---|
1046 | } |
---|
1047 | Int currTileID = pcPic->getPicSym()->getTileIdxMap(pcCU->getAddr()); |
---|
1048 | |
---|
1049 | InitAlfLCUInfo(m_ppSliceAlfLCUs[s][i], s, currTileID, pcCU, pcPic->getNumPartInCU()); |
---|
1050 | } |
---|
1051 | |
---|
1052 | //distribute Alf LCU info pointers to slice container |
---|
1053 | std::vector< AlfLCUInfo* >& vpSliceAlfLCU = m_pvpAlfLCU[s]; |
---|
1054 | vpSliceAlfLCU.reserve(numLCU); |
---|
1055 | vpSliceAlfLCU.resize(0); |
---|
1056 | std::vector< std::vector< AlfLCUInfo* > > &vpSliceTileAlfLCU = m_pvpSliceTileAlfLCU[s]; |
---|
1057 | Int prevTileID = -1; |
---|
1058 | Int numValidTilesInSlice = 0; |
---|
1059 | |
---|
1060 | for(Int i=0; i< numLCU; i++) |
---|
1061 | { |
---|
1062 | AlfLCUInfo* pcAlfLCU = &(m_ppSliceAlfLCUs[s][i]); |
---|
1063 | |
---|
1064 | //container of Alf LCU pointers for slice processing |
---|
1065 | vpSliceAlfLCU.push_back( pcAlfLCU); |
---|
1066 | |
---|
1067 | if(pcAlfLCU->tileID != prevTileID) |
---|
1068 | { |
---|
1069 | if(prevTileID == -1 || pcPic->getIndependentTileBoundaryForNDBFilter()) |
---|
1070 | { |
---|
1071 | prevTileID = pcAlfLCU->tileID; |
---|
1072 | numValidTilesInSlice ++; |
---|
1073 | vpSliceTileAlfLCU.resize(numValidTilesInSlice); |
---|
1074 | } |
---|
1075 | } |
---|
1076 | //container of Alf LCU pointers for tile processing |
---|
1077 | vpSliceTileAlfLCU[numValidTilesInSlice-1].push_back(pcAlfLCU); |
---|
1078 | } |
---|
1079 | |
---|
1080 | assert( vpSliceAlfLCU.size() == numLCU); |
---|
1081 | } |
---|
1082 | |
---|
1083 | if(m_bUseNonCrossALF) |
---|
1084 | { |
---|
1085 | m_pcSliceYuvTmp = pcPic->getYuvPicBufferForIndependentBoundaryProcessing(); |
---|
1086 | } |
---|
1087 | |
---|
1088 | } |
---|
1089 | |
---|
1090 | /** Destroy ALF slice units |
---|
1091 | */ |
---|
1092 | Void TComAdaptiveLoopFilter::destroyPicAlfInfo() |
---|
1093 | { |
---|
1094 | for(Int s=0; s< m_uiNumSlicesInPic; s++) |
---|
1095 | { |
---|
1096 | if(m_ppSliceAlfLCUs[s] != NULL) |
---|
1097 | { |
---|
1098 | delete[] m_ppSliceAlfLCUs[s]; |
---|
1099 | m_ppSliceAlfLCUs[s] = NULL; |
---|
1100 | } |
---|
1101 | } |
---|
1102 | delete[] m_ppSliceAlfLCUs; |
---|
1103 | m_ppSliceAlfLCUs = NULL; |
---|
1104 | |
---|
1105 | delete[] m_pvpAlfLCU; |
---|
1106 | m_pvpAlfLCU = NULL; |
---|
1107 | |
---|
1108 | delete[] m_pvpSliceTileAlfLCU; |
---|
1109 | m_pvpSliceTileAlfLCU = NULL; |
---|
1110 | } |
---|
1111 | |
---|
1112 | |
---|
1113 | /** Copy ALF CU control flags from ALF parameters for slices |
---|
1114 | * \param [in] vAlfParamSlices ALF CU control parameters |
---|
1115 | */ |
---|
1116 | Void TComAdaptiveLoopFilter::transferCtrlFlagsFromAlfParam(std::vector<AlfCUCtrlInfo>& vAlfParamSlices) |
---|
1117 | { |
---|
1118 | assert(m_uiNumSlicesInPic == vAlfParamSlices.size()); |
---|
1119 | |
---|
1120 | for(UInt s=0; s< m_uiNumSlicesInPic; s++) |
---|
1121 | { |
---|
1122 | AlfCUCtrlInfo& rAlfParam = vAlfParamSlices[s]; |
---|
1123 | transferCtrlFlagsFromAlfParamOneSlice( m_pvpAlfLCU[s], |
---|
1124 | (rAlfParam.cu_control_flag ==1)?true:false, |
---|
1125 | rAlfParam.alf_max_depth, |
---|
1126 | rAlfParam.alf_cu_flag |
---|
1127 | ); |
---|
1128 | } |
---|
1129 | } |
---|
1130 | /** Copy ALF CU control flags from ALF CU control parameters for one slice |
---|
1131 | * \param [in] vpAlfLCU ALF LCU data container |
---|
1132 | * \param [in] bCUCtrlEnabled true for ALF CU control enabled |
---|
1133 | * \param [in] iAlfDepth ALF CU control depth |
---|
1134 | * \param [in] vCtrlFlags ALF CU control flags |
---|
1135 | */ |
---|
1136 | Void TComAdaptiveLoopFilter::transferCtrlFlagsFromAlfParamOneSlice(std::vector< AlfLCUInfo* > &vpAlfLCU, Bool bCUCtrlEnabled, Int iAlfDepth, std::vector<UInt>& vCtrlFlags) |
---|
1137 | { |
---|
1138 | |
---|
1139 | if(!bCUCtrlEnabled) |
---|
1140 | { |
---|
1141 | for(Int idx=0; idx< vpAlfLCU.size(); idx++) |
---|
1142 | { |
---|
1143 | AlfLCUInfo& cAlfLCU = *(vpAlfLCU[idx]); |
---|
1144 | if(cAlfLCU.pcCU==0) |
---|
1145 | { |
---|
1146 | return; |
---|
1147 | } |
---|
1148 | if( cAlfLCU.bAllSUsInLCUInSameSlice) |
---|
1149 | { |
---|
1150 | cAlfLCU.pcCU->setAlfCtrlFlagSubParts(1, 0, 0); |
---|
1151 | } |
---|
1152 | else |
---|
1153 | { |
---|
1154 | for(UInt uiCurrSU= cAlfLCU.startSU; uiCurrSU<= cAlfLCU.endSU; uiCurrSU++) |
---|
1155 | { |
---|
1156 | cAlfLCU.pcCU->setAlfCtrlFlag(uiCurrSU, 1); |
---|
1157 | } |
---|
1158 | } |
---|
1159 | } |
---|
1160 | return; |
---|
1161 | } |
---|
1162 | |
---|
1163 | UInt uiNumCtrlFlags = 0; |
---|
1164 | for(Int idx=0; idx< vpAlfLCU.size(); idx++) |
---|
1165 | { |
---|
1166 | AlfLCUInfo& cAlfLCU = *(vpAlfLCU[idx]); |
---|
1167 | |
---|
1168 | if(cAlfLCU.pcCU==NULL) |
---|
1169 | { |
---|
1170 | continue; |
---|
1171 | } |
---|
1172 | uiNumCtrlFlags += (UInt)getCtrlFlagsFromAlfParam(&cAlfLCU, iAlfDepth, &(vCtrlFlags[uiNumCtrlFlags]) ); |
---|
1173 | } |
---|
1174 | } |
---|
1175 | |
---|
1176 | /** Copy region pixels |
---|
1177 | * \param vpAlfLCU ALF LCU data container |
---|
1178 | * \param pPicDst destination picture buffer |
---|
1179 | * \param pPicSrc source picture buffer |
---|
1180 | * \param stride stride size of picture buffer |
---|
1181 | * \param formatShift region size adjustment according to component size |
---|
1182 | */ |
---|
1183 | Void TComAdaptiveLoopFilter::copyRegion(std::vector< AlfLCUInfo* > &vpAlfLCU, Pel* pPicDst, Pel* pPicSrc, Int stride, Int formatShift) |
---|
1184 | { |
---|
1185 | Int extSize = 4; |
---|
1186 | Int posX, posY, width, height, offset; |
---|
1187 | Pel *pPelDst, *pPelSrc; |
---|
1188 | |
---|
1189 | for(Int idx =0; idx < vpAlfLCU.size(); idx++) |
---|
1190 | { |
---|
1191 | AlfLCUInfo& cAlfLCU = *(vpAlfLCU[idx]); |
---|
1192 | for(Int n=0; n < cAlfLCU.numSGU; n++) |
---|
1193 | { |
---|
1194 | NDBFBlockInfo& rSGU = cAlfLCU[n]; |
---|
1195 | |
---|
1196 | posX = (Int)(rSGU.posX >> formatShift); |
---|
1197 | posY = (Int)(rSGU.posY >> formatShift); |
---|
1198 | width = (Int)(rSGU.width >> formatShift); |
---|
1199 | height = (Int)(rSGU.height >> formatShift); |
---|
1200 | offset = ( (posY- extSize) * stride)+ (posX -extSize); |
---|
1201 | pPelDst = pPicDst + offset; |
---|
1202 | pPelSrc = pPicSrc + offset; |
---|
1203 | |
---|
1204 | for(Int j=0; j< (height + (extSize<<1)); j++) |
---|
1205 | { |
---|
1206 | ::memcpy(pPelDst, pPelSrc, sizeof(Pel)*(width + (extSize<<1))); |
---|
1207 | pPelDst += stride; |
---|
1208 | pPelSrc += stride; |
---|
1209 | } |
---|
1210 | } |
---|
1211 | } |
---|
1212 | } |
---|
1213 | |
---|
1214 | /** Extend region boundary |
---|
1215 | * \param [in] vpAlfLCU ALF LCU data container |
---|
1216 | * \param [in,out] pPelSrc picture buffer |
---|
1217 | * \param [in] stride stride size of picture buffer |
---|
1218 | * \param [in] formatShift region size adjustment according to component size |
---|
1219 | */ |
---|
1220 | Void TComAdaptiveLoopFilter::extendRegionBorder(std::vector< AlfLCUInfo* > &vpAlfLCU, Pel* pPelSrc, Int stride, Int formatShift) |
---|
1221 | { |
---|
1222 | UInt extSize = 4; |
---|
1223 | UInt width, height; |
---|
1224 | UInt posX, posY; |
---|
1225 | Pel* pPel; |
---|
1226 | Bool* pbAvail; |
---|
1227 | for(Int idx = 0; idx < vpAlfLCU.size(); idx++) |
---|
1228 | { |
---|
1229 | AlfLCUInfo& rAlfLCU = *(vpAlfLCU[idx]); |
---|
1230 | for(Int n =0; n < rAlfLCU.numSGU; n++) |
---|
1231 | { |
---|
1232 | NDBFBlockInfo& rSGU = rAlfLCU[n]; |
---|
1233 | if(rSGU.allBordersAvailable) |
---|
1234 | { |
---|
1235 | continue; |
---|
1236 | } |
---|
1237 | posX = rSGU.posX >> formatShift; |
---|
1238 | posY = rSGU.posY >> formatShift; |
---|
1239 | width = rSGU.width >> formatShift; |
---|
1240 | height = rSGU.height >> formatShift; |
---|
1241 | pbAvail = rSGU.isBorderAvailable; |
---|
1242 | pPel = pPelSrc + (posY * stride)+ posX; |
---|
1243 | extendBorderCoreFunction(pPel, stride, pbAvail, width, height, extSize); |
---|
1244 | } |
---|
1245 | } |
---|
1246 | } |
---|
1247 | |
---|
1248 | /** Core function for extending slice/tile boundary |
---|
1249 | * \param [in, out] pPel processing block pointer |
---|
1250 | * \param [in] stride picture buffer stride |
---|
1251 | * \param [in] pbAvail neighboring blocks availabilities |
---|
1252 | * \param [in] width block width |
---|
1253 | * \param [in] height block height |
---|
1254 | * \param [in] extSize boundary extension size |
---|
1255 | */ |
---|
1256 | Void TComAdaptiveLoopFilter::extendBorderCoreFunction(Pel* pPel, Int stride, Bool* pbAvail, UInt width, UInt height, UInt extSize) |
---|
1257 | { |
---|
1258 | Pel* pPelDst; |
---|
1259 | Pel* pPelSrc; |
---|
1260 | Int i, j; |
---|
1261 | |
---|
1262 | for(Int pos =0; pos < NUM_SGU_BORDER; pos++) |
---|
1263 | { |
---|
1264 | if(pbAvail[pos]) |
---|
1265 | { |
---|
1266 | continue; |
---|
1267 | } |
---|
1268 | |
---|
1269 | switch(pos) |
---|
1270 | { |
---|
1271 | case SGU_L: |
---|
1272 | { |
---|
1273 | pPelDst = pPel - extSize; |
---|
1274 | pPelSrc = pPel; |
---|
1275 | for(j=0; j< height; j++) |
---|
1276 | { |
---|
1277 | for(i=0; i< extSize; i++) |
---|
1278 | { |
---|
1279 | pPelDst[i] = *pPelSrc; |
---|
1280 | } |
---|
1281 | pPelDst += stride; |
---|
1282 | pPelSrc += stride; |
---|
1283 | } |
---|
1284 | } |
---|
1285 | break; |
---|
1286 | case SGU_R: |
---|
1287 | { |
---|
1288 | pPelDst = pPel + width; |
---|
1289 | pPelSrc = pPelDst -1; |
---|
1290 | for(j=0; j< height; j++) |
---|
1291 | { |
---|
1292 | for(i=0; i< extSize; i++) |
---|
1293 | { |
---|
1294 | pPelDst[i] = *pPelSrc; |
---|
1295 | } |
---|
1296 | pPelDst += stride; |
---|
1297 | pPelSrc += stride; |
---|
1298 | } |
---|
1299 | |
---|
1300 | } |
---|
1301 | break; |
---|
1302 | case SGU_T: |
---|
1303 | { |
---|
1304 | pPelSrc = pPel; |
---|
1305 | pPelDst = pPel - stride; |
---|
1306 | for(j=0; j< extSize; j++) |
---|
1307 | { |
---|
1308 | ::memcpy(pPelDst, pPelSrc, sizeof(Pel)*width); |
---|
1309 | pPelDst -= stride; |
---|
1310 | } |
---|
1311 | } |
---|
1312 | break; |
---|
1313 | case SGU_B: |
---|
1314 | { |
---|
1315 | pPelDst = pPel + height*stride; |
---|
1316 | pPelSrc = pPelDst - stride; |
---|
1317 | for(j=0; j< extSize; j++) |
---|
1318 | { |
---|
1319 | ::memcpy(pPelDst, pPelSrc, sizeof(Pel)*width); |
---|
1320 | pPelDst += stride; |
---|
1321 | } |
---|
1322 | |
---|
1323 | } |
---|
1324 | break; |
---|
1325 | case SGU_TL: |
---|
1326 | { |
---|
1327 | if( (!pbAvail[SGU_T]) && (!pbAvail[SGU_L])) |
---|
1328 | { |
---|
1329 | pPelSrc = pPel - extSize; |
---|
1330 | pPelDst = pPelSrc - stride; |
---|
1331 | for(j=0; j< extSize; j++) |
---|
1332 | { |
---|
1333 | ::memcpy(pPelDst, pPelSrc, sizeof(Pel)*extSize); |
---|
1334 | pPelDst -= stride; |
---|
1335 | } |
---|
1336 | } |
---|
1337 | } |
---|
1338 | break; |
---|
1339 | case SGU_TR: |
---|
1340 | { |
---|
1341 | if( (!pbAvail[SGU_T]) && (!pbAvail[SGU_R])) |
---|
1342 | { |
---|
1343 | pPelSrc = pPel + width; |
---|
1344 | pPelDst = pPelSrc - stride; |
---|
1345 | for(j=0; j< extSize; j++) |
---|
1346 | { |
---|
1347 | ::memcpy(pPelDst, pPelSrc, sizeof(Pel)*extSize); |
---|
1348 | pPelDst -= stride; |
---|
1349 | } |
---|
1350 | |
---|
1351 | } |
---|
1352 | |
---|
1353 | } |
---|
1354 | break; |
---|
1355 | case SGU_BL: |
---|
1356 | { |
---|
1357 | if( (!pbAvail[SGU_B]) && (!pbAvail[SGU_L])) |
---|
1358 | { |
---|
1359 | pPelDst = pPel + height*stride; pPelDst-= extSize; |
---|
1360 | pPelSrc = pPelDst - stride; |
---|
1361 | for(j=0; j< extSize; j++) |
---|
1362 | { |
---|
1363 | ::memcpy(pPelDst, pPelSrc, sizeof(Pel)*extSize); |
---|
1364 | pPelDst += stride; |
---|
1365 | } |
---|
1366 | |
---|
1367 | } |
---|
1368 | } |
---|
1369 | break; |
---|
1370 | case SGU_BR: |
---|
1371 | { |
---|
1372 | if( (!pbAvail[SGU_B]) && (!pbAvail[SGU_R])) |
---|
1373 | { |
---|
1374 | pPelDst = pPel + height*stride; pPelDst += width; |
---|
1375 | pPelSrc = pPelDst - stride; |
---|
1376 | for(j=0; j< extSize; j++) |
---|
1377 | { |
---|
1378 | ::memcpy(pPelDst, pPelSrc, sizeof(Pel)*extSize); |
---|
1379 | pPelDst += stride; |
---|
1380 | } |
---|
1381 | } |
---|
1382 | } |
---|
1383 | break; |
---|
1384 | default: |
---|
1385 | { |
---|
1386 | printf("Not a legal neighboring availability\n"); |
---|
1387 | assert(0); |
---|
1388 | exit(-1); |
---|
1389 | } |
---|
1390 | } |
---|
1391 | } |
---|
1392 | } |
---|
1393 | |
---|
1394 | /** Assign ALF on/off-control flags from ALF parameters to CU data |
---|
1395 | * \param [in] pcAlfLCU processing ALF LCU data pointer |
---|
1396 | * \param [in] alfDepth ALF on/off-control depth |
---|
1397 | * \param [in] pFlags on/off-control flags buffer in ALF parameters |
---|
1398 | */ |
---|
1399 | Int TComAdaptiveLoopFilter::getCtrlFlagsFromAlfParam(AlfLCUInfo* pcAlfLCU, Int alfDepth, UInt* pFlags) |
---|
1400 | { |
---|
1401 | |
---|
1402 | const UInt startSU = pcAlfLCU->startSU; |
---|
1403 | const UInt endSU = pcAlfLCU->endSU; |
---|
1404 | const Bool bAllSUsInLCUInSameSlice = pcAlfLCU->bAllSUsInLCUInSameSlice; |
---|
1405 | const UInt maxNumSUInLCU = m_pcPic->getNumPartInCU(); |
---|
1406 | |
---|
1407 | TComDataCU* pcCU = pcAlfLCU->pcCU; |
---|
1408 | Int numCUCtrlFlags = 0; |
---|
1409 | |
---|
1410 | UInt currSU, CUDepth, setDepth, ctrlNumSU; |
---|
1411 | UInt alfFlag; |
---|
1412 | |
---|
1413 | currSU = startSU; |
---|
1414 | if( bAllSUsInLCUInSameSlice ) |
---|
1415 | { |
---|
1416 | while(currSU < maxNumSUInLCU) |
---|
1417 | { |
---|
1418 | //depth of this CU |
---|
1419 | CUDepth = pcCU->getDepth(currSU); |
---|
1420 | |
---|
1421 | //choose the min. depth for ALF |
---|
1422 | setDepth = (alfDepth < CUDepth)?(alfDepth):(CUDepth); |
---|
1423 | ctrlNumSU = maxNumSUInLCU >> (setDepth << 1); |
---|
1424 | |
---|
1425 | alfFlag= pFlags[numCUCtrlFlags]; |
---|
1426 | |
---|
1427 | pcCU->setAlfCtrlFlagSubParts(alfFlag, currSU, (UInt)setDepth); |
---|
1428 | |
---|
1429 | numCUCtrlFlags++; |
---|
1430 | currSU += ctrlNumSU; |
---|
1431 | } |
---|
1432 | return numCUCtrlFlags; |
---|
1433 | } |
---|
1434 | |
---|
1435 | |
---|
1436 | UInt LCUX = pcCU->getCUPelX(); |
---|
1437 | UInt LCUY = pcCU->getCUPelY(); |
---|
1438 | |
---|
1439 | Bool bFirst, bValidCU; |
---|
1440 | UInt idx, LPelXSU, TPelYSU; |
---|
1441 | |
---|
1442 | bFirst= true; |
---|
1443 | while(currSU <= endSU) |
---|
1444 | { |
---|
1445 | //check picture boundary |
---|
1446 | while(!( LCUX + g_auiRasterToPelX[ g_auiZscanToRaster[currSU] ] < m_img_width ) || |
---|
1447 | !( LCUY + g_auiRasterToPelY[ g_auiZscanToRaster[currSU] ] < m_img_height ) |
---|
1448 | ) |
---|
1449 | { |
---|
1450 | currSU++; |
---|
1451 | if(currSU >= maxNumSUInLCU || currSU > endSU) |
---|
1452 | { |
---|
1453 | break; |
---|
1454 | } |
---|
1455 | } |
---|
1456 | |
---|
1457 | if(currSU >= maxNumSUInLCU || currSU > endSU) |
---|
1458 | { |
---|
1459 | break; |
---|
1460 | } |
---|
1461 | |
---|
1462 | //depth of this CU |
---|
1463 | CUDepth = pcCU->getDepth(currSU); |
---|
1464 | |
---|
1465 | //choose the min. depth for ALF |
---|
1466 | setDepth = (alfDepth < CUDepth)?(alfDepth):(CUDepth); |
---|
1467 | ctrlNumSU = maxNumSUInLCU >> (setDepth << 1); |
---|
1468 | |
---|
1469 | if(bFirst) |
---|
1470 | { |
---|
1471 | if(currSU !=0 ) |
---|
1472 | { |
---|
1473 | currSU = ((UInt)(currSU/ctrlNumSU))* ctrlNumSU; |
---|
1474 | } |
---|
1475 | bFirst = false; |
---|
1476 | } |
---|
1477 | |
---|
1478 | //alf flag for this CU |
---|
1479 | alfFlag= pFlags[numCUCtrlFlags]; |
---|
1480 | |
---|
1481 | bValidCU = false; |
---|
1482 | for(idx = currSU; idx < currSU + ctrlNumSU; idx++) |
---|
1483 | { |
---|
1484 | if(idx < startSU || idx > endSU) |
---|
1485 | { |
---|
1486 | continue; |
---|
1487 | } |
---|
1488 | |
---|
1489 | LPelXSU = LCUX + g_auiRasterToPelX[ g_auiZscanToRaster[idx] ]; |
---|
1490 | TPelYSU = LCUY + g_auiRasterToPelY[ g_auiZscanToRaster[idx] ]; |
---|
1491 | |
---|
1492 | if( !( LPelXSU < m_img_width ) || !( TPelYSU < m_img_height ) ) |
---|
1493 | { |
---|
1494 | continue; |
---|
1495 | } |
---|
1496 | |
---|
1497 | bValidCU = true; |
---|
1498 | pcCU->setAlfCtrlFlag(idx, alfFlag); |
---|
1499 | } |
---|
1500 | |
---|
1501 | if(bValidCU) |
---|
1502 | { |
---|
1503 | numCUCtrlFlags++; |
---|
1504 | } |
---|
1505 | |
---|
1506 | currSU += ctrlNumSU; |
---|
1507 | } |
---|
1508 | |
---|
1509 | return numCUCtrlFlags; |
---|
1510 | } |
---|
1511 | |
---|
1512 | /** reconstruct ALF luma coefficient |
---|
1513 | * \param [in] alfLCUParam ALF parameters |
---|
1514 | * \param [out] filterCoeff reconstructed luma coefficients |
---|
1515 | */ |
---|
1516 | Void TComAdaptiveLoopFilter::reconstructLumaCoefficients(ALFParam* alfLCUParam, Int** filterCoeff) |
---|
1517 | { |
---|
1518 | Int sum, coeffPred, ind; |
---|
1519 | #if LCUALF_QP_DEPENDENT_BITS |
---|
1520 | Int alfPrecisionBit = getAlfPrecisionBit( m_alfQP ); |
---|
1521 | #endif |
---|
1522 | const Int* filtMag = NULL; |
---|
1523 | filtMag = weightsTabShapes[0]; |
---|
1524 | |
---|
1525 | // Undo intra-filter prediction |
---|
1526 | for(ind = 0; ind < alfLCUParam->filters_per_group; ind++) |
---|
1527 | { |
---|
1528 | sum = 0; |
---|
1529 | |
---|
1530 | for(Int i = 0; i < alfLCUParam->num_coeff-2; i++) |
---|
1531 | { |
---|
1532 | sum += (filtMag[i] * alfLCUParam->coeffmulti[ind][i]); |
---|
1533 | filterCoeff[ind][i] = alfLCUParam->coeffmulti[ind][i]; |
---|
1534 | } |
---|
1535 | |
---|
1536 | if(alfLCUParam->nbSPred[ind] == 0) |
---|
1537 | { |
---|
1538 | if((alfLCUParam->predMethod==0)|(ind==0)) |
---|
1539 | { |
---|
1540 | #if LCUALF_QP_DEPENDENT_BITS |
---|
1541 | coeffPred = ((1<<alfPrecisionBit)-sum) >> 2; |
---|
1542 | #else |
---|
1543 | coeffPred = ((1<<ALF_NUM_BIT_SHIFT)-sum) >> 2; |
---|
1544 | #endif |
---|
1545 | } |
---|
1546 | else |
---|
1547 | { |
---|
1548 | coeffPred = (0-sum) >> 2; |
---|
1549 | } |
---|
1550 | |
---|
1551 | filterCoeff[ind][alfLCUParam->num_coeff-2] = coeffPred + alfLCUParam->coeffmulti[ind][alfLCUParam->num_coeff-2]; |
---|
1552 | } |
---|
1553 | else |
---|
1554 | { |
---|
1555 | filterCoeff[ind][alfLCUParam->num_coeff-2] = alfLCUParam->coeffmulti[ind][alfLCUParam->num_coeff-2]; |
---|
1556 | } |
---|
1557 | |
---|
1558 | sum += filtMag[alfLCUParam->num_coeff-2] * filterCoeff[ind][alfLCUParam->num_coeff-2]; |
---|
1559 | |
---|
1560 | if((alfLCUParam->predMethod==0)|(ind==0)) |
---|
1561 | { |
---|
1562 | #if LCUALF_QP_DEPENDENT_BITS |
---|
1563 | coeffPred = (1<<alfPrecisionBit)-sum; |
---|
1564 | #else |
---|
1565 | coeffPred = (1<<ALF_NUM_BIT_SHIFT)-sum; |
---|
1566 | #endif |
---|
1567 | } |
---|
1568 | else |
---|
1569 | { |
---|
1570 | coeffPred = -sum; |
---|
1571 | } |
---|
1572 | |
---|
1573 | filterCoeff[ind][alfLCUParam->num_coeff-1] = coeffPred + alfLCUParam->coeffmulti[ind][alfLCUParam->num_coeff-1]; |
---|
1574 | } |
---|
1575 | |
---|
1576 | |
---|
1577 | // Undo inter-filter prediction |
---|
1578 | for(ind = 1; ind < alfLCUParam->filters_per_group; ind++) |
---|
1579 | { |
---|
1580 | if(alfLCUParam->predMethod) |
---|
1581 | { |
---|
1582 | // Prediction |
---|
1583 | for(Int i = 0; i < alfLCUParam->num_coeff; i++) |
---|
1584 | { |
---|
1585 | filterCoeff[ind][i] = (int)(filterCoeff[ind][i] + filterCoeff[ind - 1][i]); |
---|
1586 | } |
---|
1587 | } |
---|
1588 | } |
---|
1589 | |
---|
1590 | } |
---|
1591 | |
---|
1592 | |
---|
1593 | /** reconstruct ALF chroma coefficient |
---|
1594 | * \param [in] alfLCUParam ALF parameters |
---|
1595 | * \param [out] filterCoeff reconstructed chroma coefficients |
---|
1596 | */ |
---|
1597 | Void TComAdaptiveLoopFilter::reconstructChromaCoefficients(ALFParam* alfLCUParam, Int** filterCoeff) |
---|
1598 | { |
---|
1599 | Int sum = 0; |
---|
1600 | Int i, coeffPred; |
---|
1601 | const Int* filtMag = NULL; |
---|
1602 | filtMag = weightsTabShapes[0]; |
---|
1603 | |
---|
1604 | for(i=0; i<alfLCUParam->num_coeff-1; i++) |
---|
1605 | { |
---|
1606 | sum += (filtMag[i] * alfLCUParam->coeffmulti[0][i]); |
---|
1607 | filterCoeff[0][i] = alfLCUParam->coeffmulti[0][i]; |
---|
1608 | } |
---|
1609 | |
---|
1610 | #if LCUALF_QP_DEPENDENT_BITS |
---|
1611 | Int alfPrecisionBit = getAlfPrecisionBit( m_alfQP ); |
---|
1612 | coeffPred = (1<<alfPrecisionBit) - sum; |
---|
1613 | #else |
---|
1614 | coeffPred = (1<<ALF_NUM_BIT_SHIFT) - sum; |
---|
1615 | #endif |
---|
1616 | filterCoeff[0][alfLCUParam->num_coeff-1] = coeffPred + alfLCUParam->coeffmulti[0][alfLCUParam->num_coeff-1]; |
---|
1617 | } |
---|
1618 | |
---|
1619 | |
---|
1620 | /** reconstruct ALF coefficient |
---|
1621 | * \param [in] compIdx component index |
---|
1622 | * \param [in] alfLCUParam ALF parameters |
---|
1623 | * \param [out] filterCoeff reconstructed coefficients |
---|
1624 | * \param [out] varIndTab the merged groups in block-based adaptation mode |
---|
1625 | */ |
---|
1626 | Void TComAdaptiveLoopFilter::reconstructCoefInfo(Int compIdx, ALFParam* alfLCUParam, Int** filterCoeff, Int* varIndTab) |
---|
1627 | { |
---|
1628 | switch(compIdx) |
---|
1629 | { |
---|
1630 | case ALF_Cb: |
---|
1631 | case ALF_Cr: |
---|
1632 | { |
---|
1633 | alfLCUParam->filters_per_group = 1; |
---|
1634 | reconstructChromaCoefficients(alfLCUParam, filterCoeff); |
---|
1635 | } |
---|
1636 | break; |
---|
1637 | case ALF_Y: |
---|
1638 | { |
---|
1639 | ::memset(varIndTab, 0, NO_VAR_BINS * sizeof(Int)); |
---|
1640 | if(alfLCUParam->filters_per_group > 1) |
---|
1641 | { |
---|
1642 | for(Int i = 1; i < NO_VAR_BINS; ++i) |
---|
1643 | { |
---|
1644 | if(alfLCUParam->filterPattern[i]) |
---|
1645 | { |
---|
1646 | varIndTab[i] = varIndTab[i-1] + 1; |
---|
1647 | } |
---|
1648 | else |
---|
1649 | { |
---|
1650 | varIndTab[i] = varIndTab[i-1]; |
---|
1651 | } |
---|
1652 | } |
---|
1653 | } |
---|
1654 | reconstructLumaCoefficients(alfLCUParam, filterCoeff); |
---|
1655 | } |
---|
1656 | break; |
---|
1657 | default: |
---|
1658 | { |
---|
1659 | printf("not legal component ID for ALF\n"); |
---|
1660 | assert(0); |
---|
1661 | exit(-1); |
---|
1662 | } |
---|
1663 | } |
---|
1664 | |
---|
1665 | } |
---|
1666 | |
---|
1667 | |
---|
1668 | /** filter process with CU-On/Off control |
---|
1669 | * \param [in] alfLCUParam ALF parameters |
---|
1670 | * \param [in] regionLCUInfo ALF CU-on/off control parameters |
---|
1671 | * \param [in] pDec decoded picture |
---|
1672 | * \param [out] pRest filtered picture |
---|
1673 | * \param [in] stride picture stride in memory |
---|
1674 | * \param [in] caculateBAIdx calculate BA filter index (true) or BA filter index array is ready (false) |
---|
1675 | */ |
---|
1676 | Void TComAdaptiveLoopFilter::filterRegionCUControl(ALFParam** alfLCUParams, std::vector<AlfLCUInfo*>& regionLCUInfo, Pel* pDec, Pel* pRest, Int stride, Bool caculateBAIdx) |
---|
1677 | { |
---|
1678 | Int ypos, xpos, currSU, startSU, endSU, lcuX, lcuY; |
---|
1679 | Int yposEnd, xposEnd; |
---|
1680 | |
---|
1681 | for(Int i=0; i< (Int)regionLCUInfo.size(); i++) |
---|
1682 | { |
---|
1683 | AlfLCUInfo& alfLCUinfo = *(regionLCUInfo[i]); |
---|
1684 | TComDataCU* pcCU = alfLCUinfo.pcCU; |
---|
1685 | Int addr = pcCU->getAddr(); |
---|
1686 | |
---|
1687 | ALFParam* alfParam = alfLCUParams[addr]; |
---|
1688 | |
---|
1689 | if(alfParam->alf_flag == 1) |
---|
1690 | { |
---|
1691 | lcuX = pcCU->getCUPelX(); |
---|
1692 | lcuY = pcCU->getCUPelY(); |
---|
1693 | |
---|
1694 | if(caculateBAIdx) |
---|
1695 | { |
---|
1696 | xposEnd = lcuX + g_uiMaxCUWidth; |
---|
1697 | yposEnd = lcuY + g_uiMaxCUHeight; |
---|
1698 | |
---|
1699 | if(xposEnd > m_img_width) |
---|
1700 | { |
---|
1701 | xposEnd = m_img_width; |
---|
1702 | } |
---|
1703 | |
---|
1704 | if(yposEnd > m_img_height) |
---|
1705 | { |
---|
1706 | yposEnd = m_img_height; |
---|
1707 | } |
---|
1708 | |
---|
1709 | calcOneRegionVar(m_varImg, pDec, stride, (alfParam->filters_per_group == 1), lcuY, yposEnd, lcuX, xposEnd); |
---|
1710 | } |
---|
1711 | |
---|
1712 | //reconstruct ALF coefficients & related parameters |
---|
1713 | reconstructCoefInfo(ALF_Y, alfParam, m_filterCoeffSym, m_varIndTab); |
---|
1714 | |
---|
1715 | startSU = alfLCUinfo.startSU; |
---|
1716 | endSU = alfLCUinfo.endSU; |
---|
1717 | |
---|
1718 | |
---|
1719 | for(currSU= startSU; currSU<= endSU; currSU++) |
---|
1720 | { |
---|
1721 | xpos = lcuX + g_auiRasterToPelX[ g_auiZscanToRaster[currSU] ]; |
---|
1722 | ypos = lcuY + g_auiRasterToPelY[ g_auiZscanToRaster[currSU] ]; |
---|
1723 | if( !( xpos < m_img_width ) || !( ypos < m_img_height ) ) |
---|
1724 | { |
---|
1725 | continue; |
---|
1726 | } |
---|
1727 | |
---|
1728 | if(pcCU->getAlfCtrlFlag(currSU)) |
---|
1729 | { |
---|
1730 | filterOneCompRegion(pRest, pDec, stride, false, ypos, ypos+m_suHeight, xpos, xpos+m_suWidth, m_filterCoeffSym, m_varIndTab, m_varImg); |
---|
1731 | } |
---|
1732 | } |
---|
1733 | |
---|
1734 | } //alf_flag == 1 |
---|
1735 | } |
---|
1736 | |
---|
1737 | } |
---|
1738 | |
---|
1739 | |
---|
1740 | /** filter process without CU-On/Off control |
---|
1741 | * \param [in] alfLCUParam ALF parameters |
---|
1742 | * \param [in] regionLCUInfo ALF CU-on/off control parameters |
---|
1743 | * \param [in] pDec decoded picture |
---|
1744 | * \param [out] pRest filtered picture |
---|
1745 | * \param [in] stride picture stride in memory |
---|
1746 | * \param [in] formatShift luma component (0) or chroma component (1) |
---|
1747 | * \param [in] caculateBAIdx calculate BA filter index (true) or BA filter index array is ready (false) |
---|
1748 | */ |
---|
1749 | Void TComAdaptiveLoopFilter::filterRegion(Int compIdx, ALFParam** alfLCUParams, std::vector<AlfLCUInfo*>& regionLCUInfo, Pel* pDec, Pel* pRest, Int stride, Int formatShift, Bool caculateBAIdx) |
---|
1750 | { |
---|
1751 | Int height, width; |
---|
1752 | Int ypos, xpos, lcuX, lcuY; |
---|
1753 | Int yposEnd, xposEnd; |
---|
1754 | |
---|
1755 | for(Int i=0; i< regionLCUInfo.size(); i++) |
---|
1756 | { |
---|
1757 | AlfLCUInfo& alfLCUinfo = *(regionLCUInfo[i]); |
---|
1758 | TComDataCU* pcCU = alfLCUinfo.pcCU; |
---|
1759 | Int addr = pcCU->getAddr(); |
---|
1760 | |
---|
1761 | ALFParam* alfParam = alfLCUParams[addr]; |
---|
1762 | |
---|
1763 | if(alfParam->alf_flag == 1) |
---|
1764 | { |
---|
1765 | lcuX = pcCU->getCUPelX(); |
---|
1766 | lcuY = pcCU->getCUPelY(); |
---|
1767 | |
---|
1768 | if(caculateBAIdx) |
---|
1769 | { |
---|
1770 | assert(compIdx == ALF_Y); |
---|
1771 | |
---|
1772 | xposEnd = lcuX + g_uiMaxCUWidth; |
---|
1773 | yposEnd = lcuY + g_uiMaxCUHeight; |
---|
1774 | |
---|
1775 | if(xposEnd > m_img_width) |
---|
1776 | { |
---|
1777 | xposEnd = m_img_width; |
---|
1778 | } |
---|
1779 | |
---|
1780 | if(yposEnd > m_img_height) |
---|
1781 | { |
---|
1782 | yposEnd = m_img_height; |
---|
1783 | } |
---|
1784 | |
---|
1785 | calcOneRegionVar(m_varImg, pDec, stride, (alfParam->filters_per_group == 1), lcuY, yposEnd, lcuX, xposEnd); |
---|
1786 | } |
---|
1787 | |
---|
1788 | //reconstruct ALF coefficients & related parameters |
---|
1789 | reconstructCoefInfo(compIdx, alfParam, m_filterCoeffSym, m_varIndTab); |
---|
1790 | |
---|
1791 | //filtering process |
---|
1792 | for(Int j=0; j< alfLCUinfo.numSGU; j++) |
---|
1793 | { |
---|
1794 | ypos = (Int)(alfLCUinfo[j].posY >> formatShift); |
---|
1795 | xpos = (Int)(alfLCUinfo[j].posX >> formatShift); |
---|
1796 | height = (Int)(alfLCUinfo[j].height >> formatShift); |
---|
1797 | width = (Int)(alfLCUinfo[j].width >> formatShift); |
---|
1798 | |
---|
1799 | filterOneCompRegion(pRest, pDec, stride, (compIdx!=ALF_Y), ypos, ypos+height, xpos, xpos+width, m_filterCoeffSym, m_varIndTab, m_varImg); |
---|
1800 | } |
---|
1801 | } //alf_flag == 1 |
---|
1802 | } |
---|
1803 | } |
---|
1804 | |
---|
1805 | |
---|
1806 | /** predict chroma center coefficient |
---|
1807 | * \param [in] coeff ALF chroma coefficient |
---|
1808 | * \param [in] numCoef number of chroma coefficients |
---|
1809 | */ |
---|
1810 | Void TComAdaptiveLoopFilter::predictALFCoeffChroma(Int* coeff, Int numCoef) |
---|
1811 | { |
---|
1812 | Int sum=0; |
---|
1813 | for(Int i=0; i< numCoef-1;i++) |
---|
1814 | { |
---|
1815 | sum += (2* coeff[i]); |
---|
1816 | } |
---|
1817 | |
---|
1818 | #if LCUALF_QP_DEPENDENT_BITS |
---|
1819 | Int alfPrecisionBit = getAlfPrecisionBit( m_alfQP ); |
---|
1820 | Int pred = (1<<alfPrecisionBit) - (sum); |
---|
1821 | #else |
---|
1822 | Int pred = (1<<ALF_NUM_BIT_SHIFT) - (sum); |
---|
1823 | #endif |
---|
1824 | coeff[numCoef-1] = coeff[numCoef-1] - pred; |
---|
1825 | } |
---|
1826 | |
---|
1827 | /** filtering pixels |
---|
1828 | * \param [out] imgRes filtered picture |
---|
1829 | * \param [in] imgPad decoded picture |
---|
1830 | * \param [in] stride picture stride in memory |
---|
1831 | * \param [in] isChroma chroma component (true) or luma component (false) |
---|
1832 | * \param [in] yPos y position of the top-left pixel in one to-be-filtered region |
---|
1833 | * \param [in] yPosEnd y position of the right-bottom pixel in one to-be-filtered region |
---|
1834 | * \param [in] xPos x position of the top-left pixel in one to-be-filtered region |
---|
1835 | * \param [in] xPosEnd x position of the right-bottom pixel in one to-be-filtered region |
---|
1836 | * \param [in] filterSet filter coefficients |
---|
1837 | * \param [in] mergeTable the merged groups in block-based adaptation mode |
---|
1838 | * \param [in] varImg BA filter index array |
---|
1839 | */ |
---|
1840 | Void TComAdaptiveLoopFilter::filterOneCompRegion(Pel *imgRes, Pel *imgPad, Int stride, Bool isChroma |
---|
1841 | , Int yPos, Int yPosEnd, Int xPos, Int xPosEnd |
---|
1842 | , Int** filterSet, Int* mergeTable, Pel** varImg |
---|
1843 | ) |
---|
1844 | { |
---|
1845 | #if LCUALF_QP_DEPENDENT_BITS |
---|
1846 | Int alfPrecisionBit = getAlfPrecisionBit( m_alfQP ); |
---|
1847 | Int numBitsMinus1 = alfPrecisionBit; |
---|
1848 | Int offset = (1<<(alfPrecisionBit-1)); |
---|
1849 | #else |
---|
1850 | static Int numBitsMinus1= (Int)ALF_NUM_BIT_SHIFT; |
---|
1851 | static Int offset = (1<<( (Int)ALF_NUM_BIT_SHIFT-1)); |
---|
1852 | #endif |
---|
1853 | static Int shiftHeight = (Int)(log((double)VAR_SIZE_H)/log(2.0)); |
---|
1854 | static Int shiftWidth = (Int)(log((double)VAR_SIZE_W)/log(2.0)); |
---|
1855 | |
---|
1856 | Pel *imgPad1,*imgPad2,*imgPad3, *imgPad4, *imgPad5, *imgPad6; |
---|
1857 | Pel *var = varImg[yPos>>shiftHeight] + (xPos>>shiftWidth);; |
---|
1858 | Int i, j, pixelInt; |
---|
1859 | Int *coef = NULL; |
---|
1860 | |
---|
1861 | coef = filterSet[0]; |
---|
1862 | imgPad += (yPos*stride); |
---|
1863 | imgRes += (yPos*stride); |
---|
1864 | |
---|
1865 | Int yLineInLCU; |
---|
1866 | Int paddingLine; |
---|
1867 | //Int varInd = 0; |
---|
1868 | Int lcuHeight = isChroma ? m_lcuHeightChroma : m_lcuHeight; |
---|
1869 | Int lineIdxPadBot = isChroma ? m_lineIdxPadBotChroma : m_lineIdxPadBot; |
---|
1870 | Int lineIdxPadTop = isChroma ? m_lineIdxPadTopChroma : m_lineIdxPadTop; |
---|
1871 | Int img_height = isChroma ? m_img_height>>1 : m_img_height; |
---|
1872 | |
---|
1873 | for(i= yPos; i< yPosEnd; i++) |
---|
1874 | { |
---|
1875 | yLineInLCU = i % lcuHeight; |
---|
1876 | |
---|
1877 | if(isChroma && yLineInLCU == 0 && i>0) |
---|
1878 | { |
---|
1879 | paddingLine = yLineInLCU + 2; |
---|
1880 | imgPad1 = imgPad + stride; |
---|
1881 | imgPad2 = imgPad - stride; |
---|
1882 | imgPad3 = imgPad + 2*stride; |
---|
1883 | imgPad4 = imgPad - 2*stride; |
---|
1884 | imgPad5 = (paddingLine < 3) ? imgPad : imgPad + 3*stride; |
---|
1885 | imgPad6 = (paddingLine < 3) ? imgPad : imgPad - min(paddingLine, 3)*stride; |
---|
1886 | } |
---|
1887 | else if(yLineInLCU<lineIdxPadBot || i-yLineInLCU+lcuHeight >= img_height) |
---|
1888 | { |
---|
1889 | imgPad1 = imgPad + stride; |
---|
1890 | imgPad2 = imgPad - stride; |
---|
1891 | imgPad3 = imgPad + 2*stride; |
---|
1892 | imgPad4 = imgPad - 2*stride; |
---|
1893 | imgPad5 = imgPad + 3*stride; |
---|
1894 | imgPad6 = imgPad - 3*stride; |
---|
1895 | } |
---|
1896 | else if (yLineInLCU<lineIdxPadTop) |
---|
1897 | { |
---|
1898 | paddingLine = - yLineInLCU + lineIdxPadTop - 1; |
---|
1899 | imgPad1 = (paddingLine < 1) ? imgPad : imgPad + min(paddingLine, 1)*stride; |
---|
1900 | imgPad2 = (paddingLine < 1) ? imgPad : imgPad - stride; |
---|
1901 | imgPad3 = (paddingLine < 2) ? imgPad : imgPad + min(paddingLine, 2)*stride; |
---|
1902 | imgPad4 = (paddingLine < 2) ? imgPad : imgPad - 2*stride; |
---|
1903 | imgPad5 = (paddingLine < 3) ? imgPad : imgPad + min(paddingLine, 3)*stride; |
---|
1904 | imgPad6 = (paddingLine < 3) ? imgPad : imgPad - 3*stride; |
---|
1905 | } |
---|
1906 | else |
---|
1907 | { |
---|
1908 | paddingLine = yLineInLCU - lineIdxPadTop ; |
---|
1909 | imgPad1 = (paddingLine < 1) ? imgPad : imgPad + stride; |
---|
1910 | imgPad2 = (paddingLine < 1) ? imgPad : imgPad - min(paddingLine, 1)*stride; |
---|
1911 | imgPad3 = (paddingLine < 2) ? imgPad : imgPad + 2*stride; |
---|
1912 | imgPad4 = (paddingLine < 2) ? imgPad : imgPad - min(paddingLine, 2)*stride; |
---|
1913 | imgPad5 = (paddingLine < 3) ? imgPad : imgPad + 3*stride; |
---|
1914 | imgPad6 = (paddingLine < 3) ? imgPad : imgPad - min(paddingLine, 3)*stride; |
---|
1915 | } |
---|
1916 | |
---|
1917 | if(!isChroma) |
---|
1918 | { |
---|
1919 | var = varImg[i>>shiftHeight] + (xPos>>shiftWidth); |
---|
1920 | } |
---|
1921 | |
---|
1922 | for(j= xPos; j< xPosEnd ; j++) |
---|
1923 | { |
---|
1924 | if (!isChroma && j % VAR_SIZE_W==0) |
---|
1925 | { |
---|
1926 | coef = filterSet[mergeTable[*(var++)]]; |
---|
1927 | } |
---|
1928 | |
---|
1929 | pixelInt = coef[0]* (imgPad5[j ] + imgPad6[j ]); |
---|
1930 | |
---|
1931 | pixelInt += coef[1]* (imgPad3[j ] + imgPad4[j ]); |
---|
1932 | |
---|
1933 | pixelInt += coef[2]* (imgPad1[j-1] + imgPad2[j+1]); |
---|
1934 | pixelInt += coef[3]* (imgPad1[j ] + imgPad2[j ]); |
---|
1935 | pixelInt += coef[4]* (imgPad1[j+1] + imgPad2[j-1]); |
---|
1936 | |
---|
1937 | pixelInt += coef[5]* (imgPad[j+4] + imgPad[j-4]); |
---|
1938 | pixelInt += coef[6]* (imgPad[j+3] + imgPad[j-3]); |
---|
1939 | pixelInt += coef[7]* (imgPad[j+2] + imgPad[j-2]); |
---|
1940 | pixelInt += coef[8]* (imgPad[j+1] + imgPad[j-1]); |
---|
1941 | pixelInt += coef[9]* (imgPad[j ]); |
---|
1942 | |
---|
1943 | pixelInt=(Int)((pixelInt+offset) >> numBitsMinus1); |
---|
1944 | imgRes[j] = Clip( pixelInt ); |
---|
1945 | } |
---|
1946 | |
---|
1947 | imgPad += stride; |
---|
1948 | imgRes += stride; |
---|
1949 | } |
---|
1950 | } |
---|
1951 | |
---|
1952 | #if LCUALF_QP_DEPENDENT_BITS |
---|
1953 | /** filtering pixels |
---|
1954 | * \param [in] qp quantization parameter |
---|
1955 | */ |
---|
1956 | Int TComAdaptiveLoopFilter::getAlfPrecisionBit(Int qp) |
---|
1957 | { |
---|
1958 | Int alfPrecisionBit = 8; |
---|
1959 | |
---|
1960 | if (qp < ALF_QP1) |
---|
1961 | { |
---|
1962 | alfPrecisionBit = 8; |
---|
1963 | } |
---|
1964 | else if (qp < ALF_QP2) |
---|
1965 | { |
---|
1966 | alfPrecisionBit = 7; |
---|
1967 | } |
---|
1968 | else if (qp < ALF_QP3) |
---|
1969 | { |
---|
1970 | alfPrecisionBit = 6; |
---|
1971 | } |
---|
1972 | else |
---|
1973 | { |
---|
1974 | alfPrecisionBit = 5; |
---|
1975 | } |
---|
1976 | |
---|
1977 | return alfPrecisionBit; |
---|
1978 | } |
---|
1979 | #endif |
---|
1980 | |
---|
1981 | /** filtering pixels |
---|
1982 | * \param [out] imgYvar BA filter index array |
---|
1983 | * \param [in] imgYpad decoded picture |
---|
1984 | * \param [in] stride picture stride in memory |
---|
1985 | * \param [in] isOnlyOneGroup only one filter is used (true) or multiple filters are used (false) |
---|
1986 | * \param [in] yPos y position of the top-left pixel in one to-be-filtered region |
---|
1987 | * \param [in] yPosEnd y position of the right-bottom pixel in one to-be-filtered region |
---|
1988 | * \param [in] xPos x position of the top-left pixel in one to-be-filtered region |
---|
1989 | * \param [in] xPosEnd x position of the right-bottom pixel in one to-be-filtered region |
---|
1990 | */ |
---|
1991 | Void TComAdaptiveLoopFilter::calcOneRegionVar(Pel **imgYvar, Pel *imgYpad, Int stride, Bool isOnlyOneGroup, Int yPos, Int yPosEnd, Int xPos, Int xPosEnd) |
---|
1992 | { |
---|
1993 | |
---|
1994 | static Int shiftH = (Int)(log((double)VAR_SIZE_H)/log(2.0)); |
---|
1995 | static Int shiftW = (Int)(log((double)VAR_SIZE_W)/log(2.0)); |
---|
1996 | static Int varMax = (Int)NO_VAR_BINS-1; |
---|
1997 | static Int th[NO_VAR_BINS] = {0, 1, 2, 2, 3, 3, 3, 4, 4, 4, 4, 5, 5, 5, 5, 5}; |
---|
1998 | static Int avgVarTab[3][6] = { {0, 1, 2, 3, 4, 5,}, |
---|
1999 | {0, 6, 7, 8, 9, 10,}, |
---|
2000 | {0, 11, 12, 13, 14, 15} }; |
---|
2001 | |
---|
2002 | Int i, j, avgVar, vertical, horizontal, direction, yOffset; |
---|
2003 | Pel *imgYPadCur, *imgYPadUp, *imgYPadDown; |
---|
2004 | |
---|
2005 | if (isOnlyOneGroup) |
---|
2006 | { |
---|
2007 | for(i = yPos; i < yPosEnd; i=i+4) |
---|
2008 | { |
---|
2009 | for(j = xPos; j < xPosEnd; j=j+4) |
---|
2010 | { |
---|
2011 | imgYvar[i>>shiftH][j>>shiftW] = 0; |
---|
2012 | } |
---|
2013 | } |
---|
2014 | return; |
---|
2015 | } |
---|
2016 | |
---|
2017 | for(i = yPos; i < yPosEnd; i=i+4) |
---|
2018 | { |
---|
2019 | yOffset = (i*stride) + stride; |
---|
2020 | imgYPadCur = &imgYpad[yOffset]; |
---|
2021 | imgYPadUp = &imgYpad[yOffset + stride]; |
---|
2022 | imgYPadDown = &imgYpad[yOffset - stride]; |
---|
2023 | |
---|
2024 | for(j = xPos; j < xPosEnd; j=j+4) |
---|
2025 | { |
---|
2026 | // Compute at sub-sample by 2 |
---|
2027 | vertical = abs((imgYPadCur[j+1]<<1) - imgYPadDown[j+1] - imgYPadUp [j+1]); |
---|
2028 | horizontal = abs((imgYPadCur[j+1]<<1) - imgYPadCur [j+2] - imgYPadCur[j ]); |
---|
2029 | |
---|
2030 | vertical += abs((imgYPadCur[j+2]<<1) - imgYPadDown[j+2] - imgYPadUp [j+2]); |
---|
2031 | horizontal += abs((imgYPadCur[j+2]<<1) - imgYPadCur [j+3] - imgYPadCur[j+1]); |
---|
2032 | |
---|
2033 | vertical += abs((imgYPadCur[j+1+stride]<<1) - imgYPadDown[j+1+stride] - imgYPadUp [j+1+stride]); |
---|
2034 | horizontal += abs((imgYPadCur[j+1+stride]<<1) - imgYPadCur [j+2+stride] - imgYPadCur[j+stride ]); |
---|
2035 | |
---|
2036 | vertical += abs((imgYPadCur[j+2+stride]<<1) - imgYPadDown[j+2+stride] - imgYPadUp [j+2+stride]); |
---|
2037 | horizontal += abs((imgYPadCur[j+2+stride]<<1) - imgYPadCur [j+3+stride] - imgYPadCur[j+1+stride]); |
---|
2038 | |
---|
2039 | direction = 0; |
---|
2040 | if (vertical > 2*horizontal) |
---|
2041 | { |
---|
2042 | direction = 1; //vertical |
---|
2043 | } |
---|
2044 | if (horizontal > 2*vertical) |
---|
2045 | { |
---|
2046 | direction = 2; //horizontal |
---|
2047 | } |
---|
2048 | |
---|
2049 | avgVar = (vertical + horizontal) >> 2; |
---|
2050 | avgVar = (Pel) Clip_post( varMax, avgVar>>(g_uiBitIncrement+1) ); |
---|
2051 | avgVar = th[avgVar]; |
---|
2052 | avgVar = avgVarTab[direction][avgVar]; |
---|
2053 | imgYvar[i>>shiftH][j>>shiftW] = avgVar; |
---|
2054 | } |
---|
2055 | } |
---|
2056 | } |
---|
2057 | |
---|
2058 | |
---|
2059 | Void TComAdaptiveLoopFilter::resetLCUAlfInfo() |
---|
2060 | { |
---|
2061 | //reset to all off |
---|
2062 | for(Int compIdx = 0; compIdx < NUM_ALF_COMPONENT; compIdx++) |
---|
2063 | { |
---|
2064 | for(Int n=0; n< m_uiNumCUsInFrame; n++) |
---|
2065 | { |
---|
2066 | m_alfFiltInfo[compIdx][n]->alf_flag = 0; |
---|
2067 | } |
---|
2068 | } |
---|
2069 | |
---|
2070 | } |
---|
2071 | |
---|
2072 | Void TComAdaptiveLoopFilter::createLCUAlfInfo() |
---|
2073 | { |
---|
2074 | for(Int compIdx = 0; compIdx < NUM_ALF_COMPONENT; compIdx++) |
---|
2075 | { |
---|
2076 | m_alfFiltInfo[compIdx] = new ALFParam*[m_uiNumCUsInFrame]; |
---|
2077 | for(Int n=0; n< m_uiNumCUsInFrame; n++) |
---|
2078 | { |
---|
2079 | m_alfFiltInfo[compIdx][n] = new ALFParam(compIdx); |
---|
2080 | } |
---|
2081 | } |
---|
2082 | |
---|
2083 | resetLCUAlfInfo(); |
---|
2084 | } |
---|
2085 | |
---|
2086 | Void TComAdaptiveLoopFilter::destroyLCUAlfInfo() |
---|
2087 | { |
---|
2088 | for(Int compIdx = 0; compIdx < NUM_ALF_COMPONENT; compIdx++) |
---|
2089 | { |
---|
2090 | if(m_alfFiltInfo[compIdx] != NULL) |
---|
2091 | { |
---|
2092 | for(Int n=0; n< m_uiNumCUsInFrame; n++) |
---|
2093 | { |
---|
2094 | delete m_alfFiltInfo[compIdx][n]; |
---|
2095 | } |
---|
2096 | delete[] m_alfFiltInfo[compIdx]; |
---|
2097 | m_alfFiltInfo[compIdx] = NULL; |
---|
2098 | } |
---|
2099 | } |
---|
2100 | } |
---|
2101 | |
---|
2102 | Pel* TComAdaptiveLoopFilter::getPicBuf(TComPicYuv* pPicYuv, Int compIdx) |
---|
2103 | { |
---|
2104 | Pel* pBuf = NULL; |
---|
2105 | switch(compIdx) |
---|
2106 | { |
---|
2107 | case ALF_Y: |
---|
2108 | { |
---|
2109 | pBuf = pPicYuv->getLumaAddr(); |
---|
2110 | } |
---|
2111 | break; |
---|
2112 | case ALF_Cb: |
---|
2113 | { |
---|
2114 | pBuf = pPicYuv->getCbAddr(); |
---|
2115 | } |
---|
2116 | break; |
---|
2117 | case ALF_Cr: |
---|
2118 | { |
---|
2119 | pBuf = pPicYuv->getCrAddr(); |
---|
2120 | } |
---|
2121 | break; |
---|
2122 | default: |
---|
2123 | { |
---|
2124 | printf("Not a legal component ID for ALF\n"); |
---|
2125 | assert(0); |
---|
2126 | exit(-1); |
---|
2127 | } |
---|
2128 | } |
---|
2129 | |
---|
2130 | return pBuf; |
---|
2131 | } |
---|
2132 | |
---|
2133 | |
---|
2134 | |
---|
2135 | /** PCM LF disable process. |
---|
2136 | * \param pcPic picture (TComPic) pointer |
---|
2137 | * \returns Void |
---|
2138 | * |
---|
2139 | * \note Replace filtered sample values of PCM mode blocks with the transmitted and reconstructed ones. |
---|
2140 | */ |
---|
2141 | Void TComAdaptiveLoopFilter::PCMLFDisableProcess (TComPic* pcPic) |
---|
2142 | { |
---|
2143 | xPCMRestoration(pcPic); |
---|
2144 | } |
---|
2145 | |
---|
2146 | /** Picture-level PCM restoration. |
---|
2147 | * \param pcPic picture (TComPic) pointer |
---|
2148 | * \returns Void |
---|
2149 | */ |
---|
2150 | Void TComAdaptiveLoopFilter::xPCMRestoration(TComPic* pcPic) |
---|
2151 | { |
---|
2152 | Bool bPCMFilter = (pcPic->getSlice(0)->getSPS()->getUsePCM() && pcPic->getSlice(0)->getSPS()->getPCMFilterDisableFlag())? true : false; |
---|
2153 | |
---|
2154 | #if LOSSLESS_CODING |
---|
2155 | if(bPCMFilter || pcPic->getSlice(0)->getSPS()->getUseLossless()) |
---|
2156 | #else |
---|
2157 | if(bPCMFilter) |
---|
2158 | #endif |
---|
2159 | { |
---|
2160 | for( UInt uiCUAddr = 0; uiCUAddr < pcPic->getNumCUsInFrame() ; uiCUAddr++ ) |
---|
2161 | { |
---|
2162 | TComDataCU* pcCU = pcPic->getCU(uiCUAddr); |
---|
2163 | |
---|
2164 | xPCMCURestoration(pcCU, 0, 0); |
---|
2165 | } |
---|
2166 | } |
---|
2167 | } |
---|
2168 | |
---|
2169 | /** PCM CU restoration. |
---|
2170 | * \param pcCU pointer to current CU |
---|
2171 | * \param uiAbsPartIdx part index |
---|
2172 | * \param uiDepth CU depth |
---|
2173 | * \returns Void |
---|
2174 | */ |
---|
2175 | Void TComAdaptiveLoopFilter::xPCMCURestoration ( TComDataCU* pcCU, UInt uiAbsZorderIdx, UInt uiDepth ) |
---|
2176 | { |
---|
2177 | TComPic* pcPic = pcCU->getPic(); |
---|
2178 | UInt uiCurNumParts = pcPic->getNumPartInCU() >> (uiDepth<<1); |
---|
2179 | UInt uiQNumParts = uiCurNumParts>>2; |
---|
2180 | |
---|
2181 | // go to sub-CU |
---|
2182 | if( pcCU->getDepth(uiAbsZorderIdx) > uiDepth ) |
---|
2183 | { |
---|
2184 | for ( UInt uiPartIdx = 0; uiPartIdx < 4; uiPartIdx++, uiAbsZorderIdx+=uiQNumParts ) |
---|
2185 | { |
---|
2186 | UInt uiLPelX = pcCU->getCUPelX() + g_auiRasterToPelX[ g_auiZscanToRaster[uiAbsZorderIdx] ]; |
---|
2187 | UInt uiTPelY = pcCU->getCUPelY() + g_auiRasterToPelY[ g_auiZscanToRaster[uiAbsZorderIdx] ]; |
---|
2188 | if( ( uiLPelX < pcCU->getSlice()->getSPS()->getPicWidthInLumaSamples() ) && ( uiTPelY < pcCU->getSlice()->getSPS()->getPicHeightInLumaSamples() ) ) |
---|
2189 | xPCMCURestoration( pcCU, uiAbsZorderIdx, uiDepth+1 ); |
---|
2190 | } |
---|
2191 | return; |
---|
2192 | } |
---|
2193 | |
---|
2194 | // restore PCM samples |
---|
2195 | #if LOSSLESS_CODING |
---|
2196 | if ((pcCU->getIPCMFlag(uiAbsZorderIdx)) || pcCU->isLosslessCoded( uiAbsZorderIdx)) |
---|
2197 | #else |
---|
2198 | if (pcCU->getIPCMFlag(uiAbsZorderIdx)) |
---|
2199 | #endif |
---|
2200 | { |
---|
2201 | xPCMSampleRestoration (pcCU, uiAbsZorderIdx, uiDepth, TEXT_LUMA ); |
---|
2202 | xPCMSampleRestoration (pcCU, uiAbsZorderIdx, uiDepth, TEXT_CHROMA_U); |
---|
2203 | xPCMSampleRestoration (pcCU, uiAbsZorderIdx, uiDepth, TEXT_CHROMA_V); |
---|
2204 | } |
---|
2205 | } |
---|
2206 | |
---|
2207 | /** PCM sample restoration. |
---|
2208 | * \param pcCU pointer to current CU |
---|
2209 | * \param uiAbsPartIdx part index |
---|
2210 | * \param uiDepth CU depth |
---|
2211 | * \param ttText texture component type |
---|
2212 | * \returns Void |
---|
2213 | */ |
---|
2214 | Void TComAdaptiveLoopFilter::xPCMSampleRestoration (TComDataCU* pcCU, UInt uiAbsZorderIdx, UInt uiDepth, TextType ttText) |
---|
2215 | { |
---|
2216 | TComPicYuv* pcPicYuvRec = pcCU->getPic()->getPicYuvRec(); |
---|
2217 | Pel* piSrc; |
---|
2218 | Pel* piPcm; |
---|
2219 | UInt uiStride; |
---|
2220 | UInt uiWidth; |
---|
2221 | UInt uiHeight; |
---|
2222 | UInt uiPcmLeftShiftBit; |
---|
2223 | UInt uiX, uiY; |
---|
2224 | UInt uiMinCoeffSize = pcCU->getPic()->getMinCUWidth()*pcCU->getPic()->getMinCUHeight(); |
---|
2225 | UInt uiLumaOffset = uiMinCoeffSize*uiAbsZorderIdx; |
---|
2226 | UInt uiChromaOffset = uiLumaOffset>>2; |
---|
2227 | |
---|
2228 | if( ttText == TEXT_LUMA ) |
---|
2229 | { |
---|
2230 | piSrc = pcPicYuvRec->getLumaAddr( pcCU->getAddr(), uiAbsZorderIdx); |
---|
2231 | piPcm = pcCU->getPCMSampleY() + uiLumaOffset; |
---|
2232 | uiStride = pcPicYuvRec->getStride(); |
---|
2233 | uiWidth = (g_uiMaxCUWidth >> uiDepth); |
---|
2234 | uiHeight = (g_uiMaxCUHeight >> uiDepth); |
---|
2235 | #if LOSSLESS_CODING |
---|
2236 | if ( pcCU->isLosslessCoded(uiAbsZorderIdx) ) |
---|
2237 | { |
---|
2238 | uiPcmLeftShiftBit = 0; |
---|
2239 | } |
---|
2240 | else |
---|
2241 | #endif |
---|
2242 | { |
---|
2243 | uiPcmLeftShiftBit = g_uiBitDepth + g_uiBitIncrement - pcCU->getSlice()->getSPS()->getPCMBitDepthLuma(); |
---|
2244 | } |
---|
2245 | } |
---|
2246 | else |
---|
2247 | { |
---|
2248 | if( ttText == TEXT_CHROMA_U ) |
---|
2249 | { |
---|
2250 | piSrc = pcPicYuvRec->getCbAddr( pcCU->getAddr(), uiAbsZorderIdx ); |
---|
2251 | piPcm = pcCU->getPCMSampleCb() + uiChromaOffset; |
---|
2252 | } |
---|
2253 | else |
---|
2254 | { |
---|
2255 | piSrc = pcPicYuvRec->getCrAddr( pcCU->getAddr(), uiAbsZorderIdx ); |
---|
2256 | piPcm = pcCU->getPCMSampleCr() + uiChromaOffset; |
---|
2257 | } |
---|
2258 | |
---|
2259 | uiStride = pcPicYuvRec->getCStride(); |
---|
2260 | uiWidth = ((g_uiMaxCUWidth >> uiDepth)/2); |
---|
2261 | uiHeight = ((g_uiMaxCUWidth >> uiDepth)/2); |
---|
2262 | #if LOSSLESS_CODING |
---|
2263 | if ( pcCU->isLosslessCoded(uiAbsZorderIdx) ) |
---|
2264 | { |
---|
2265 | uiPcmLeftShiftBit = 0; |
---|
2266 | } |
---|
2267 | else |
---|
2268 | #endif |
---|
2269 | { |
---|
2270 | uiPcmLeftShiftBit = g_uiBitDepth + g_uiBitIncrement - pcCU->getSlice()->getSPS()->getPCMBitDepthChroma(); |
---|
2271 | } |
---|
2272 | } |
---|
2273 | |
---|
2274 | for( uiY = 0; uiY < uiHeight; uiY++ ) |
---|
2275 | { |
---|
2276 | for( uiX = 0; uiX < uiWidth; uiX++ ) |
---|
2277 | { |
---|
2278 | piSrc[uiX] = (piPcm[uiX] << uiPcmLeftShiftBit); |
---|
2279 | } |
---|
2280 | piPcm += uiWidth; |
---|
2281 | piSrc += uiStride; |
---|
2282 | } |
---|
2283 | } |
---|
2284 | //! \} |
---|