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) 2010-2015, 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 TComPattern.cpp |
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35 | \brief neighbouring pixel access classes |
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36 | */ |
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37 | |
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38 | #include "TComPic.h" |
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39 | #include "TComPattern.h" |
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40 | #include "TComDataCU.h" |
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41 | #include "TComTU.h" |
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42 | #include "Debug.h" |
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43 | #include "TComPrediction.h" |
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44 | |
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45 | //! \ingroup TLibCommon |
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46 | //! \{ |
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47 | |
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48 | // Forward declarations |
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49 | |
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50 | /// padding of unavailable reference samples for intra prediction |
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51 | Void fillReferenceSamples( const Int bitDepth, |
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52 | #if O0043_BEST_EFFORT_DECODING |
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53 | const Int bitDepthDelta, |
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54 | #endif |
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55 | const Pel* piRoiOrigin, |
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56 | Pel* piIntraTemp, |
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57 | const Bool* bNeighborFlags, |
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58 | const Int iNumIntraNeighbor, |
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59 | const Int unitWidth, |
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60 | const Int unitHeight, |
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61 | const Int iAboveUnits, |
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62 | const Int iLeftUnits, |
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63 | const UInt uiWidth, |
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64 | const UInt uiHeight, |
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65 | const Int iPicStride ); |
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66 | |
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67 | /// constrained intra prediction |
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68 | Bool isAboveLeftAvailable ( TComDataCU* pcCU, UInt uiPartIdxLT ); |
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69 | Int isAboveAvailable ( TComDataCU* pcCU, UInt uiPartIdxLT, UInt uiPartIdxRT, Bool* bValidFlags ); |
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70 | Int isLeftAvailable ( TComDataCU* pcCU, UInt uiPartIdxLT, UInt uiPartIdxLB, Bool* bValidFlags ); |
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71 | Int isAboveRightAvailable ( TComDataCU* pcCU, UInt uiPartIdxLT, UInt uiPartIdxRT, Bool* bValidFlags ); |
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72 | Int isBelowLeftAvailable ( TComDataCU* pcCU, UInt uiPartIdxLT, UInt uiPartIdxLB, Bool* bValidFlags ); |
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73 | |
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74 | |
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75 | // ==================================================================================================================== |
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76 | // Public member functions (TComPatternParam) |
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77 | // ==================================================================================================================== |
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78 | |
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79 | /** |
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80 | \param piTexture pixel data |
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81 | \param iRoiWidth pattern width |
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82 | \param iRoiHeight pattern height |
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83 | \param iStride buffer stride |
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84 | \param bitDepth bit depth |
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85 | */ |
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86 | Void TComPatternParam::setPatternParamPel ( Pel* piTexture, |
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87 | Int iRoiWidth, |
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88 | Int iRoiHeight, |
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89 | Int iStride, |
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90 | Int bitDepth |
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91 | ) |
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92 | { |
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93 | m_piROIOrigin = piTexture; |
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94 | m_iROIWidth = iRoiWidth; |
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95 | m_iROIHeight = iRoiHeight; |
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96 | m_iPatternStride = iStride; |
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97 | m_bitDepth = bitDepth; |
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98 | } |
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99 | |
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100 | // ==================================================================================================================== |
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101 | // Public member functions (TComPattern) |
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102 | // ==================================================================================================================== |
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103 | |
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104 | Void TComPattern::initPattern (Pel* piY, |
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105 | Int iRoiWidth, |
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106 | Int iRoiHeight, |
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107 | Int iStride, |
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108 | Int bitDepthLuma) |
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109 | { |
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110 | m_cPatternY. setPatternParamPel( piY, iRoiWidth, iRoiHeight, iStride, bitDepthLuma); |
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111 | } |
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112 | |
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113 | |
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114 | // TODO: move this function to TComPrediction.cpp. |
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115 | Void TComPrediction::initIntraPatternChType( TComTU &rTu, const ComponentID compID, const Bool bFilterRefSamples DEBUG_STRING_FN_DECLARE(sDebug)) |
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116 | { |
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117 | const ChannelType chType = toChannelType(compID); |
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118 | |
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119 | TComDataCU *pcCU=rTu.getCU(); |
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120 | const TComSPS &sps = *(pcCU->getSlice()->getSPS()); |
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121 | const UInt uiZorderIdxInPart=rTu.GetAbsPartIdxTU(); |
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122 | const UInt uiTuWidth = rTu.getRect(compID).width; |
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123 | const UInt uiTuHeight = rTu.getRect(compID).height; |
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124 | const UInt uiTuWidth2 = uiTuWidth << 1; |
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125 | const UInt uiTuHeight2 = uiTuHeight << 1; |
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126 | |
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127 | const Int iBaseUnitSize = sps.getMaxCUWidth() >> sps.getMaxTotalCUDepth(); |
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128 | const Int iUnitWidth = iBaseUnitSize >> pcCU->getPic()->getPicYuvRec()->getComponentScaleX(compID); |
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129 | const Int iUnitHeight = iBaseUnitSize >> pcCU->getPic()->getPicYuvRec()->getComponentScaleY(compID); |
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130 | const Int iTUWidthInUnits = uiTuWidth / iUnitWidth; |
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131 | const Int iTUHeightInUnits = uiTuHeight / iUnitHeight; |
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132 | const Int iAboveUnits = iTUWidthInUnits << 1; |
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133 | const Int iLeftUnits = iTUHeightInUnits << 1; |
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134 | const Int bitDepthForChannel = sps.getBitDepth(chType); |
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135 | |
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136 | assert(iTUHeightInUnits > 0 && iTUWidthInUnits > 0); |
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137 | |
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138 | const Int iPartIdxStride = pcCU->getPic()->getNumPartInCtuWidth(); |
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139 | const UInt uiPartIdxLT = pcCU->getZorderIdxInCtu() + uiZorderIdxInPart; |
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140 | const UInt uiPartIdxRT = g_auiRasterToZscan[ g_auiZscanToRaster[ uiPartIdxLT ] + iTUWidthInUnits - 1 ]; |
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141 | const UInt uiPartIdxLB = g_auiRasterToZscan[ g_auiZscanToRaster[ uiPartIdxLT ] + ((iTUHeightInUnits - 1) * iPartIdxStride)]; |
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142 | |
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143 | Int iPicStride = pcCU->getPic()->getStride(compID); |
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144 | Bool bNeighborFlags[4 * MAX_NUM_PART_IDXS_IN_CTU_WIDTH + 1]; |
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145 | Int iNumIntraNeighbor = 0; |
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146 | |
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147 | bNeighborFlags[iLeftUnits] = isAboveLeftAvailable( pcCU, uiPartIdxLT ); |
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148 | iNumIntraNeighbor += bNeighborFlags[iLeftUnits] ? 1 : 0; |
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149 | iNumIntraNeighbor += isAboveAvailable ( pcCU, uiPartIdxLT, uiPartIdxRT, (bNeighborFlags + iLeftUnits + 1) ); |
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150 | iNumIntraNeighbor += isAboveRightAvailable( pcCU, uiPartIdxLT, uiPartIdxRT, (bNeighborFlags + iLeftUnits + 1 + iTUWidthInUnits ) ); |
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151 | iNumIntraNeighbor += isLeftAvailable ( pcCU, uiPartIdxLT, uiPartIdxLB, (bNeighborFlags + iLeftUnits - 1) ); |
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152 | iNumIntraNeighbor += isBelowLeftAvailable ( pcCU, uiPartIdxLT, uiPartIdxLB, (bNeighborFlags + iLeftUnits - 1 - iTUHeightInUnits) ); |
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153 | |
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154 | const UInt uiROIWidth = uiTuWidth2+1; |
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155 | const UInt uiROIHeight = uiTuHeight2+1; |
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156 | |
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157 | assert(uiROIWidth*uiROIHeight <= m_iYuvExtSize); |
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158 | |
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159 | #if DEBUG_STRING |
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160 | std::stringstream ss(stringstream::out); |
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161 | #endif |
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162 | |
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163 | { |
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164 | Pel *piIntraTemp = m_piYuvExt[compID][PRED_BUF_UNFILTERED]; |
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165 | Pel *piRoiOrigin = pcCU->getPic()->getPicYuvRec()->getAddr(compID, pcCU->getCtuRsAddr(), pcCU->getZorderIdxInCtu()+uiZorderIdxInPart); |
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166 | #if O0043_BEST_EFFORT_DECODING |
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167 | const Int bitDepthForChannelInStream = sps.getStreamBitDepth(chType); |
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168 | fillReferenceSamples (bitDepthForChannelInStream, bitDepthForChannelInStream - bitDepthForChannel, |
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169 | #else |
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170 | fillReferenceSamples (bitDepthForChannel, |
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171 | #endif |
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172 | piRoiOrigin, piIntraTemp, bNeighborFlags, iNumIntraNeighbor, iUnitWidth, iUnitHeight, iAboveUnits, iLeftUnits, |
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173 | uiROIWidth, uiROIHeight, iPicStride); |
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174 | |
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175 | |
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176 | #if DEBUG_STRING |
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177 | if (DebugOptionList::DebugString_Pred.getInt()&DebugStringGetPredModeMask(MODE_INTRA)) |
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178 | { |
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179 | ss << "###: generating Ref Samples for channel " << compID << " and " << rTu.getRect(compID).width << " x " << rTu.getRect(compID).height << "\n"; |
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180 | for (UInt y=0; y<uiROIHeight; y++) |
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181 | { |
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182 | ss << "###: - "; |
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183 | for (UInt x=0; x<uiROIWidth; x++) |
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184 | { |
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185 | if (x==0 || y==0) |
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186 | { |
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187 | ss << piIntraTemp[y*uiROIWidth + x] << ", "; |
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188 | // if (x%16==15) ss << "\nPart size: ~ "; |
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189 | } |
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190 | } |
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191 | ss << "\n"; |
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192 | } |
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193 | } |
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194 | #endif |
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195 | |
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196 | if (bFilterRefSamples) |
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197 | { |
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198 | // generate filtered intra prediction samples |
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199 | |
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200 | Int stride = uiROIWidth; |
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201 | const Pel *piSrcPtr = piIntraTemp + (stride * uiTuHeight2); // bottom left |
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202 | Pel *piDestPtr = m_piYuvExt[compID][PRED_BUF_FILTERED] + (stride * uiTuHeight2); // bottom left |
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203 | |
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204 | //------------------------------------------------ |
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205 | |
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206 | Bool useStrongIntraSmoothing = isLuma(chType) && sps.getUseStrongIntraSmoothing(); |
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207 | |
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208 | const Pel bottomLeft = piIntraTemp[stride * uiTuHeight2]; |
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209 | const Pel topLeft = piIntraTemp[0]; |
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210 | const Pel topRight = piIntraTemp[uiTuWidth2]; |
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211 | |
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212 | if (useStrongIntraSmoothing) |
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213 | { |
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214 | #if O0043_BEST_EFFORT_DECODING |
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215 | const Int threshold = 1 << (bitDepthForChannelInStream - 5); |
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216 | #else |
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217 | const Int threshold = 1 << (bitDepthForChannel - 5); |
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218 | #endif |
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219 | const Bool bilinearLeft = abs((bottomLeft + topLeft ) - (2 * piIntraTemp[stride * uiTuHeight])) < threshold; //difference between the |
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220 | const Bool bilinearAbove = abs((topLeft + topRight) - (2 * piIntraTemp[ uiTuWidth ])) < threshold; //ends and the middle |
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221 | if ((uiTuWidth < 32) || (!bilinearLeft) || (!bilinearAbove)) |
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222 | { |
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223 | useStrongIntraSmoothing = false; |
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224 | } |
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225 | } |
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226 | |
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227 | *piDestPtr = *piSrcPtr; // bottom left is not filtered |
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228 | piDestPtr -= stride; |
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229 | piSrcPtr -= stride; |
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230 | |
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231 | //------------------------------------------------ |
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232 | |
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233 | //left column (bottom to top) |
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234 | |
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235 | if (useStrongIntraSmoothing) |
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236 | { |
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237 | const Int shift = g_aucConvertToBit[uiTuHeight] + 3; //log2(uiTuHeight2) |
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238 | |
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239 | for(UInt i=1; i<uiTuHeight2; i++, piDestPtr-=stride) |
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240 | { |
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241 | *piDestPtr = (((uiTuHeight2 - i) * bottomLeft) + (i * topLeft) + uiTuHeight) >> shift; |
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242 | } |
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243 | |
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244 | piSrcPtr -= stride * (uiTuHeight2 - 1); |
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245 | } |
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246 | else |
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247 | { |
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248 | for(UInt i=1; i<uiTuHeight2; i++, piDestPtr-=stride, piSrcPtr-=stride) |
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249 | { |
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250 | *piDestPtr = ( piSrcPtr[stride] + 2*piSrcPtr[0] + piSrcPtr[-stride] + 2 ) >> 2; |
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251 | } |
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252 | } |
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253 | |
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254 | //------------------------------------------------ |
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255 | |
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256 | //top-left |
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257 | |
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258 | if (useStrongIntraSmoothing) |
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259 | { |
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260 | *piDestPtr = piSrcPtr[0]; |
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261 | } |
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262 | else |
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263 | { |
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264 | *piDestPtr = ( piSrcPtr[stride] + 2*piSrcPtr[0] + piSrcPtr[1] + 2 ) >> 2; |
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265 | } |
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266 | piDestPtr += 1; |
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267 | piSrcPtr += 1; |
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268 | |
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269 | //------------------------------------------------ |
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270 | |
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271 | //top row (left-to-right) |
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272 | |
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273 | if (useStrongIntraSmoothing) |
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274 | { |
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275 | const Int shift = g_aucConvertToBit[uiTuWidth] + 3; //log2(uiTuWidth2) |
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276 | |
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277 | for(UInt i=1; i<uiTuWidth2; i++, piDestPtr++) |
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278 | { |
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279 | *piDestPtr = (((uiTuWidth2 - i) * topLeft) + (i * topRight) + uiTuWidth) >> shift; |
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280 | } |
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281 | |
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282 | piSrcPtr += uiTuWidth2 - 1; |
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283 | } |
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284 | else |
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285 | { |
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286 | for(UInt i=1; i<uiTuWidth2; i++, piDestPtr++, piSrcPtr++) |
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287 | { |
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288 | *piDestPtr = ( piSrcPtr[1] + 2*piSrcPtr[0] + piSrcPtr[-1] + 2 ) >> 2; |
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289 | } |
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290 | } |
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291 | |
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292 | //------------------------------------------------ |
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293 | |
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294 | *piDestPtr=*piSrcPtr; // far right is not filtered |
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295 | |
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296 | #if DEBUG_STRING |
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297 | if (DebugOptionList::DebugString_Pred.getInt()&DebugStringGetPredModeMask(MODE_INTRA)) |
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298 | { |
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299 | ss << "###: filtered result for channel " << compID <<"\n"; |
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300 | for (UInt y=0; y<uiROIHeight; y++) |
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301 | { |
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302 | ss << "###: - "; |
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303 | for (UInt x=0; x<uiROIWidth; x++) |
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304 | { |
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305 | if (x==0 || y==0) |
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306 | { |
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307 | ss << m_piYuvExt[compID][PRED_BUF_FILTERED][y*uiROIWidth + x] << ", "; |
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308 | // if (x%16==15) ss << "\nPart size: ~ "; |
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309 | } |
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310 | } |
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311 | ss << "\n"; |
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312 | } |
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313 | } |
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314 | #endif |
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315 | |
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316 | |
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317 | } |
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318 | } |
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319 | DEBUG_STRING_APPEND(sDebug, ss.str()) |
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320 | } |
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321 | |
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322 | Void fillReferenceSamples( const Int bitDepth, |
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323 | #if O0043_BEST_EFFORT_DECODING |
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324 | const Int bitDepthDelta, |
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325 | #endif |
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326 | const Pel* piRoiOrigin, |
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327 | Pel* piIntraTemp, |
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328 | const Bool* bNeighborFlags, |
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329 | const Int iNumIntraNeighbor, |
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330 | const Int unitWidth, |
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331 | const Int unitHeight, |
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332 | const Int iAboveUnits, |
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333 | const Int iLeftUnits, |
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334 | const UInt uiWidth, |
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335 | const UInt uiHeight, |
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336 | const Int iPicStride ) |
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337 | { |
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338 | const Pel* piRoiTemp; |
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339 | Int i, j; |
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340 | Int iDCValue = 1 << (bitDepth - 1); |
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341 | const Int iTotalUnits = iAboveUnits + iLeftUnits + 1; //+1 for top-left |
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342 | |
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343 | if (iNumIntraNeighbor == 0) |
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344 | { |
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345 | // Fill border with DC value |
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346 | for (i=0; i<uiWidth; i++) |
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347 | { |
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348 | piIntraTemp[i] = iDCValue; |
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349 | } |
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350 | for (i=1; i<uiHeight; i++) |
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351 | { |
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352 | piIntraTemp[i*uiWidth] = iDCValue; |
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353 | } |
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354 | } |
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355 | else if (iNumIntraNeighbor == iTotalUnits) |
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356 | { |
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357 | // Fill top-left border and top and top right with rec. samples |
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358 | piRoiTemp = piRoiOrigin - iPicStride - 1; |
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359 | |
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360 | for (i=0; i<uiWidth; i++) |
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361 | { |
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362 | #if O0043_BEST_EFFORT_DECODING |
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363 | piIntraTemp[i] = piRoiTemp[i] << bitDepthDelta; |
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364 | #else |
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365 | piIntraTemp[i] = piRoiTemp[i]; |
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366 | #endif |
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367 | } |
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368 | |
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369 | // Fill left and below left border with rec. samples |
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370 | piRoiTemp = piRoiOrigin - 1; |
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371 | |
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372 | for (i=1; i<uiHeight; i++) |
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373 | { |
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374 | #if O0043_BEST_EFFORT_DECODING |
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375 | piIntraTemp[i*uiWidth] = (*(piRoiTemp)) << bitDepthDelta; |
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376 | #else |
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377 | piIntraTemp[i*uiWidth] = *(piRoiTemp); |
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378 | #endif |
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379 | piRoiTemp += iPicStride; |
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380 | } |
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381 | } |
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382 | else // reference samples are partially available |
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383 | { |
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384 | // all above units have "unitWidth" samples each, all left/below-left units have "unitHeight" samples each |
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385 | const Int iTotalSamples = (iLeftUnits * unitHeight) + ((iAboveUnits + 1) * unitWidth); |
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386 | Pel piIntraLine[5 * MAX_CU_SIZE]; |
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387 | Pel *piIntraLineTemp; |
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388 | const Bool *pbNeighborFlags; |
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389 | |
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390 | |
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391 | // Initialize |
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392 | for (i=0; i<iTotalSamples; i++) |
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393 | { |
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394 | piIntraLine[i] = iDCValue; |
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395 | } |
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396 | |
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397 | // Fill top-left sample |
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398 | piRoiTemp = piRoiOrigin - iPicStride - 1; |
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399 | piIntraLineTemp = piIntraLine + (iLeftUnits * unitHeight); |
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400 | pbNeighborFlags = bNeighborFlags + iLeftUnits; |
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401 | if (*pbNeighborFlags) |
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402 | { |
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403 | #if O0043_BEST_EFFORT_DECODING |
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404 | Pel topLeftVal=piRoiTemp[0] << bitDepthDelta; |
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405 | #else |
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406 | Pel topLeftVal=piRoiTemp[0]; |
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407 | #endif |
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408 | for (i=0; i<unitWidth; i++) |
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409 | { |
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410 | piIntraLineTemp[i] = topLeftVal; |
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411 | } |
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412 | } |
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413 | |
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414 | // Fill left & below-left samples (downwards) |
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415 | piRoiTemp += iPicStride; |
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416 | piIntraLineTemp--; |
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417 | pbNeighborFlags--; |
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418 | |
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419 | for (j=0; j<iLeftUnits; j++) |
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420 | { |
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421 | if (*pbNeighborFlags) |
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422 | { |
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423 | for (i=0; i<unitHeight; i++) |
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424 | { |
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425 | #if O0043_BEST_EFFORT_DECODING |
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426 | piIntraLineTemp[-i] = piRoiTemp[i*iPicStride] << bitDepthDelta; |
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427 | #else |
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428 | piIntraLineTemp[-i] = piRoiTemp[i*iPicStride]; |
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429 | #endif |
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430 | } |
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431 | } |
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432 | piRoiTemp += unitHeight*iPicStride; |
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433 | piIntraLineTemp -= unitHeight; |
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434 | pbNeighborFlags--; |
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435 | } |
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436 | |
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437 | // Fill above & above-right samples (left-to-right) (each unit has "unitWidth" samples) |
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438 | piRoiTemp = piRoiOrigin - iPicStride; |
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439 | // offset line buffer by iNumUints2*unitHeight (for left/below-left) + unitWidth (for above-left) |
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440 | piIntraLineTemp = piIntraLine + (iLeftUnits * unitHeight) + unitWidth; |
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441 | pbNeighborFlags = bNeighborFlags + iLeftUnits + 1; |
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442 | for (j=0; j<iAboveUnits; j++) |
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443 | { |
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444 | if (*pbNeighborFlags) |
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445 | { |
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446 | for (i=0; i<unitWidth; i++) |
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447 | { |
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448 | #if O0043_BEST_EFFORT_DECODING |
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449 | piIntraLineTemp[i] = piRoiTemp[i] << bitDepthDelta; |
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450 | #else |
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451 | piIntraLineTemp[i] = piRoiTemp[i]; |
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452 | #endif |
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453 | } |
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454 | } |
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455 | piRoiTemp += unitWidth; |
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456 | piIntraLineTemp += unitWidth; |
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457 | pbNeighborFlags++; |
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458 | } |
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459 | |
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460 | // Pad reference samples when necessary |
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461 | Int iCurrJnit = 0; |
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462 | Pel *piIntraLineCur = piIntraLine; |
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463 | const UInt piIntraLineTopRowOffset = iLeftUnits * (unitHeight - unitWidth); |
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464 | |
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465 | if (!bNeighborFlags[0]) |
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466 | { |
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467 | // very bottom unit of bottom-left; at least one unit will be valid. |
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468 | { |
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469 | Int iNext = 1; |
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470 | while (iNext < iTotalUnits && !bNeighborFlags[iNext]) |
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471 | { |
---|
472 | iNext++; |
---|
473 | } |
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474 | Pel *piIntraLineNext = piIntraLine + ((iNext < iLeftUnits) ? (iNext * unitHeight) : (piIntraLineTopRowOffset + (iNext * unitWidth))); |
---|
475 | const Pel refSample = *piIntraLineNext; |
---|
476 | // Pad unavailable samples with new value |
---|
477 | Int iNextOrTop = std::min<Int>(iNext, iLeftUnits); |
---|
478 | // fill left column |
---|
479 | while (iCurrJnit < iNextOrTop) |
---|
480 | { |
---|
481 | for (i=0; i<unitHeight; i++) |
---|
482 | { |
---|
483 | piIntraLineCur[i] = refSample; |
---|
484 | } |
---|
485 | piIntraLineCur += unitHeight; |
---|
486 | iCurrJnit++; |
---|
487 | } |
---|
488 | // fill top row |
---|
489 | while (iCurrJnit < iNext) |
---|
490 | { |
---|
491 | for (i=0; i<unitWidth; i++) |
---|
492 | { |
---|
493 | piIntraLineCur[i] = refSample; |
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494 | } |
---|
495 | piIntraLineCur += unitWidth; |
---|
496 | iCurrJnit++; |
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497 | } |
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498 | } |
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499 | } |
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500 | |
---|
501 | // pad all other reference samples. |
---|
502 | while (iCurrJnit < iTotalUnits) |
---|
503 | { |
---|
504 | if (!bNeighborFlags[iCurrJnit]) // samples not available |
---|
505 | { |
---|
506 | { |
---|
507 | const Int numSamplesInCurrUnit = (iCurrJnit >= iLeftUnits) ? unitWidth : unitHeight; |
---|
508 | const Pel refSample = *(piIntraLineCur-1); |
---|
509 | for (i=0; i<numSamplesInCurrUnit; i++) |
---|
510 | { |
---|
511 | piIntraLineCur[i] = refSample; |
---|
512 | } |
---|
513 | piIntraLineCur += numSamplesInCurrUnit; |
---|
514 | iCurrJnit++; |
---|
515 | } |
---|
516 | } |
---|
517 | else |
---|
518 | { |
---|
519 | piIntraLineCur += (iCurrJnit >= iLeftUnits) ? unitWidth : unitHeight; |
---|
520 | iCurrJnit++; |
---|
521 | } |
---|
522 | } |
---|
523 | |
---|
524 | // Copy processed samples |
---|
525 | |
---|
526 | piIntraLineTemp = piIntraLine + uiHeight + unitWidth - 2; |
---|
527 | // top left, top and top right samples |
---|
528 | for (i=0; i<uiWidth; i++) |
---|
529 | { |
---|
530 | piIntraTemp[i] = piIntraLineTemp[i]; |
---|
531 | } |
---|
532 | |
---|
533 | piIntraLineTemp = piIntraLine + uiHeight - 1; |
---|
534 | for (i=1; i<uiHeight; i++) |
---|
535 | { |
---|
536 | piIntraTemp[i*uiWidth] = piIntraLineTemp[-i]; |
---|
537 | } |
---|
538 | } |
---|
539 | } |
---|
540 | |
---|
541 | Bool TComPrediction::filteringIntraReferenceSamples(const ComponentID compID, UInt uiDirMode, UInt uiTuChWidth, UInt uiTuChHeight, const ChromaFormat chFmt, const Bool intraReferenceSmoothingDisabled) |
---|
542 | { |
---|
543 | Bool bFilter; |
---|
544 | |
---|
545 | if (!filterIntraReferenceSamples(toChannelType(compID), chFmt, intraReferenceSmoothingDisabled)) |
---|
546 | { |
---|
547 | bFilter=false; |
---|
548 | } |
---|
549 | else |
---|
550 | { |
---|
551 | assert(uiTuChWidth>=4 && uiTuChHeight>=4 && uiTuChWidth<128 && uiTuChHeight<128); |
---|
552 | |
---|
553 | if (uiDirMode == DC_IDX) |
---|
554 | { |
---|
555 | bFilter=false; //no smoothing for DC or LM chroma |
---|
556 | } |
---|
557 | else |
---|
558 | { |
---|
559 | Int diff = min<Int>(abs((Int) uiDirMode - HOR_IDX), abs((Int)uiDirMode - VER_IDX)); |
---|
560 | UInt sizeIndex=g_aucConvertToBit[uiTuChWidth]; |
---|
561 | assert(sizeIndex < MAX_INTRA_FILTER_DEPTHS); |
---|
562 | bFilter = diff > m_aucIntraFilter[toChannelType(compID)][sizeIndex]; |
---|
563 | } |
---|
564 | } |
---|
565 | return bFilter; |
---|
566 | } |
---|
567 | |
---|
568 | Bool isAboveLeftAvailable( TComDataCU* pcCU, UInt uiPartIdxLT ) |
---|
569 | { |
---|
570 | Bool bAboveLeftFlag; |
---|
571 | UInt uiPartAboveLeft; |
---|
572 | TComDataCU* pcCUAboveLeft = pcCU->getPUAboveLeft( uiPartAboveLeft, uiPartIdxLT ); |
---|
573 | if(pcCU->getSlice()->getPPS()->getConstrainedIntraPred()) |
---|
574 | { |
---|
575 | bAboveLeftFlag = ( pcCUAboveLeft && pcCUAboveLeft->isIntra( uiPartAboveLeft ) ); |
---|
576 | } |
---|
577 | else |
---|
578 | { |
---|
579 | bAboveLeftFlag = (pcCUAboveLeft ? true : false); |
---|
580 | } |
---|
581 | return bAboveLeftFlag; |
---|
582 | } |
---|
583 | |
---|
584 | Int isAboveAvailable( TComDataCU* pcCU, UInt uiPartIdxLT, UInt uiPartIdxRT, Bool *bValidFlags ) |
---|
585 | { |
---|
586 | const UInt uiRasterPartBegin = g_auiZscanToRaster[uiPartIdxLT]; |
---|
587 | const UInt uiRasterPartEnd = g_auiZscanToRaster[uiPartIdxRT]+1; |
---|
588 | const UInt uiIdxStep = 1; |
---|
589 | Bool *pbValidFlags = bValidFlags; |
---|
590 | Int iNumIntra = 0; |
---|
591 | |
---|
592 | for ( UInt uiRasterPart = uiRasterPartBegin; uiRasterPart < uiRasterPartEnd; uiRasterPart += uiIdxStep ) |
---|
593 | { |
---|
594 | UInt uiPartAbove; |
---|
595 | TComDataCU* pcCUAbove = pcCU->getPUAbove( uiPartAbove, g_auiRasterToZscan[uiRasterPart] ); |
---|
596 | if(pcCU->getSlice()->getPPS()->getConstrainedIntraPred()) |
---|
597 | { |
---|
598 | if ( pcCUAbove && pcCUAbove->isIntra( uiPartAbove ) ) |
---|
599 | { |
---|
600 | iNumIntra++; |
---|
601 | *pbValidFlags = true; |
---|
602 | } |
---|
603 | else |
---|
604 | { |
---|
605 | *pbValidFlags = false; |
---|
606 | } |
---|
607 | } |
---|
608 | else |
---|
609 | { |
---|
610 | if (pcCUAbove) |
---|
611 | { |
---|
612 | iNumIntra++; |
---|
613 | *pbValidFlags = true; |
---|
614 | } |
---|
615 | else |
---|
616 | { |
---|
617 | *pbValidFlags = false; |
---|
618 | } |
---|
619 | } |
---|
620 | pbValidFlags++; |
---|
621 | } |
---|
622 | return iNumIntra; |
---|
623 | } |
---|
624 | |
---|
625 | Int isLeftAvailable( TComDataCU* pcCU, UInt uiPartIdxLT, UInt uiPartIdxLB, Bool *bValidFlags ) |
---|
626 | { |
---|
627 | const UInt uiRasterPartBegin = g_auiZscanToRaster[uiPartIdxLT]; |
---|
628 | const UInt uiRasterPartEnd = g_auiZscanToRaster[uiPartIdxLB]+1; |
---|
629 | const UInt uiIdxStep = pcCU->getPic()->getNumPartInCtuWidth(); |
---|
630 | Bool *pbValidFlags = bValidFlags; |
---|
631 | Int iNumIntra = 0; |
---|
632 | |
---|
633 | for ( UInt uiRasterPart = uiRasterPartBegin; uiRasterPart < uiRasterPartEnd; uiRasterPart += uiIdxStep ) |
---|
634 | { |
---|
635 | UInt uiPartLeft; |
---|
636 | TComDataCU* pcCULeft = pcCU->getPULeft( uiPartLeft, g_auiRasterToZscan[uiRasterPart] ); |
---|
637 | if(pcCU->getSlice()->getPPS()->getConstrainedIntraPred()) |
---|
638 | { |
---|
639 | if ( pcCULeft && pcCULeft->isIntra( uiPartLeft ) ) |
---|
640 | { |
---|
641 | iNumIntra++; |
---|
642 | *pbValidFlags = true; |
---|
643 | } |
---|
644 | else |
---|
645 | { |
---|
646 | *pbValidFlags = false; |
---|
647 | } |
---|
648 | } |
---|
649 | else |
---|
650 | { |
---|
651 | if ( pcCULeft ) |
---|
652 | { |
---|
653 | iNumIntra++; |
---|
654 | *pbValidFlags = true; |
---|
655 | } |
---|
656 | else |
---|
657 | { |
---|
658 | *pbValidFlags = false; |
---|
659 | } |
---|
660 | } |
---|
661 | pbValidFlags--; // opposite direction |
---|
662 | } |
---|
663 | |
---|
664 | return iNumIntra; |
---|
665 | } |
---|
666 | |
---|
667 | Int isAboveRightAvailable( TComDataCU* pcCU, UInt uiPartIdxLT, UInt uiPartIdxRT, Bool *bValidFlags ) |
---|
668 | { |
---|
669 | const UInt uiNumUnitsInPU = g_auiZscanToRaster[uiPartIdxRT] - g_auiZscanToRaster[uiPartIdxLT] + 1; |
---|
670 | Bool *pbValidFlags = bValidFlags; |
---|
671 | Int iNumIntra = 0; |
---|
672 | |
---|
673 | for ( UInt uiOffset = 1; uiOffset <= uiNumUnitsInPU; uiOffset++ ) |
---|
674 | { |
---|
675 | UInt uiPartAboveRight; |
---|
676 | TComDataCU* pcCUAboveRight = pcCU->getPUAboveRight( uiPartAboveRight, uiPartIdxRT, uiOffset ); |
---|
677 | if(pcCU->getSlice()->getPPS()->getConstrainedIntraPred()) |
---|
678 | { |
---|
679 | if ( pcCUAboveRight && pcCUAboveRight->isIntra( uiPartAboveRight ) ) |
---|
680 | { |
---|
681 | iNumIntra++; |
---|
682 | *pbValidFlags = true; |
---|
683 | } |
---|
684 | else |
---|
685 | { |
---|
686 | *pbValidFlags = false; |
---|
687 | } |
---|
688 | } |
---|
689 | else |
---|
690 | { |
---|
691 | if ( pcCUAboveRight ) |
---|
692 | { |
---|
693 | iNumIntra++; |
---|
694 | *pbValidFlags = true; |
---|
695 | } |
---|
696 | else |
---|
697 | { |
---|
698 | *pbValidFlags = false; |
---|
699 | } |
---|
700 | } |
---|
701 | pbValidFlags++; |
---|
702 | } |
---|
703 | |
---|
704 | return iNumIntra; |
---|
705 | } |
---|
706 | |
---|
707 | Int isBelowLeftAvailable( TComDataCU* pcCU, UInt uiPartIdxLT, UInt uiPartIdxLB, Bool *bValidFlags ) |
---|
708 | { |
---|
709 | const UInt uiNumUnitsInPU = (g_auiZscanToRaster[uiPartIdxLB] - g_auiZscanToRaster[uiPartIdxLT]) / pcCU->getPic()->getNumPartInCtuWidth() + 1; |
---|
710 | Bool *pbValidFlags = bValidFlags; |
---|
711 | Int iNumIntra = 0; |
---|
712 | |
---|
713 | for ( UInt uiOffset = 1; uiOffset <= uiNumUnitsInPU; uiOffset++ ) |
---|
714 | { |
---|
715 | UInt uiPartBelowLeft; |
---|
716 | TComDataCU* pcCUBelowLeft = pcCU->getPUBelowLeft( uiPartBelowLeft, uiPartIdxLB, uiOffset ); |
---|
717 | if(pcCU->getSlice()->getPPS()->getConstrainedIntraPred()) |
---|
718 | { |
---|
719 | if ( pcCUBelowLeft && pcCUBelowLeft->isIntra( uiPartBelowLeft ) ) |
---|
720 | { |
---|
721 | iNumIntra++; |
---|
722 | *pbValidFlags = true; |
---|
723 | } |
---|
724 | else |
---|
725 | { |
---|
726 | *pbValidFlags = false; |
---|
727 | } |
---|
728 | } |
---|
729 | else |
---|
730 | { |
---|
731 | if ( pcCUBelowLeft ) |
---|
732 | { |
---|
733 | iNumIntra++; |
---|
734 | *pbValidFlags = true; |
---|
735 | } |
---|
736 | else |
---|
737 | { |
---|
738 | *pbValidFlags = false; |
---|
739 | } |
---|
740 | } |
---|
741 | pbValidFlags--; // opposite direction |
---|
742 | } |
---|
743 | |
---|
744 | return iNumIntra; |
---|
745 | } |
---|
746 | //! \} |
---|