| 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) 2010-2014, 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 | /** |
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| 35 | \file TEncSampleAdaptiveOffset.cpp |
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| 36 | \brief estimation part of sample adaptive offset class |
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| 37 | */ |
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| 38 | #include "TEncSampleAdaptiveOffset.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 TLibEncoder |
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| 45 | //! \{ |
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| 46 | |
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| 47 | |
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| 48 | /** rounding with IBDI |
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| 49 | * \param x |
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| 50 | */ |
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| 51 | inline Double xRoundIbdi2(Int bitDepth, Double x) |
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| 52 | { |
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| 53 | return ((x)>0) ? (Int)(((Int)(x)+(1<<(bitDepth-8-1)))/(1<<(bitDepth-8))) : ((Int)(((Int)(x)-(1<<(bitDepth-8-1)))/(1<<(bitDepth-8)))); |
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| 54 | } |
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| 55 | |
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| 56 | inline Double xRoundIbdi(Int bitDepth, Double x) |
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| 57 | { |
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| 58 | return (bitDepth > 8 ? xRoundIbdi2(bitDepth, (x)) : ((x)>=0 ? ((Int)((x)+0.5)) : ((Int)((x)-0.5)))) ; |
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| 59 | } |
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| 60 | |
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| 61 | |
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| 62 | TEncSampleAdaptiveOffset::TEncSampleAdaptiveOffset() |
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| 63 | { |
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| 64 | m_pppcRDSbacCoder = NULL; |
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| 65 | m_pcRDGoOnSbacCoder = NULL; |
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| 66 | m_pppcBinCoderCABAC = NULL; |
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| 67 | m_statData = NULL; |
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| 68 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 69 | m_preDBFstatData = NULL; |
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| 70 | #endif |
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| 71 | } |
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| 72 | |
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| 73 | TEncSampleAdaptiveOffset::~TEncSampleAdaptiveOffset() |
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| 74 | { |
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| 75 | destroyEncData(); |
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| 76 | } |
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| 77 | |
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| 78 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 79 | Void TEncSampleAdaptiveOffset::createEncData(Bool isPreDBFSamplesUsed) |
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| 80 | #else |
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| 81 | Void TEncSampleAdaptiveOffset::createEncData() |
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| 82 | #endif |
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| 83 | { |
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| 84 | |
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| 85 | //cabac coder for RDO |
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| 86 | m_pppcRDSbacCoder = new TEncSbac* [NUM_SAO_CABACSTATE_LABELS]; |
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| 87 | m_pppcBinCoderCABAC = new TEncBinCABACCounter* [NUM_SAO_CABACSTATE_LABELS]; |
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| 88 | |
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| 89 | for(Int cs=0; cs < NUM_SAO_CABACSTATE_LABELS; cs++) |
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| 90 | { |
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| 91 | m_pppcRDSbacCoder[cs] = new TEncSbac; |
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| 92 | m_pppcBinCoderCABAC[cs] = new TEncBinCABACCounter; |
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| 93 | m_pppcRDSbacCoder [cs]->init( m_pppcBinCoderCABAC [cs] ); |
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| 94 | } |
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| 95 | |
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| 96 | |
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| 97 | //statistics |
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| 98 | m_statData = new SAOStatData**[m_numCTUsPic]; |
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| 99 | for(Int i=0; i< m_numCTUsPic; i++) |
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| 100 | { |
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| 101 | m_statData[i] = new SAOStatData*[NUM_SAO_COMPONENTS]; |
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| 102 | for(Int compIdx=0; compIdx < NUM_SAO_COMPONENTS; compIdx++) |
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| 103 | { |
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| 104 | m_statData[i][compIdx] = new SAOStatData[NUM_SAO_NEW_TYPES]; |
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| 105 | } |
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| 106 | } |
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| 107 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 108 | if(isPreDBFSamplesUsed) |
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| 109 | { |
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| 110 | m_preDBFstatData = new SAOStatData**[m_numCTUsPic]; |
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| 111 | for(Int i=0; i< m_numCTUsPic; i++) |
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| 112 | { |
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| 113 | m_preDBFstatData[i] = new SAOStatData*[NUM_SAO_COMPONENTS]; |
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| 114 | for(Int compIdx=0; compIdx < NUM_SAO_COMPONENTS; compIdx++) |
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| 115 | { |
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| 116 | m_preDBFstatData[i][compIdx] = new SAOStatData[NUM_SAO_NEW_TYPES]; |
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| 117 | } |
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| 118 | } |
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| 119 | |
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| 120 | } |
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| 121 | #endif |
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| 122 | |
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| 123 | #if SAO_ENCODING_CHOICE |
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| 124 | ::memset(m_saoDisabledRate, 0, sizeof(m_saoDisabledRate)); |
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| 125 | #endif |
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| 126 | |
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| 127 | for(Int typeIdc=0; typeIdc < NUM_SAO_NEW_TYPES; typeIdc++) |
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| 128 | { |
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| 129 | m_skipLinesR[SAO_Y ][typeIdc]= 5; |
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| 130 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 3; |
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| 131 | |
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| 132 | m_skipLinesB[SAO_Y ][typeIdc]= 4; |
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| 133 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 2; |
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| 134 | |
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| 135 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 136 | if(isPreDBFSamplesUsed) |
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| 137 | { |
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| 138 | switch(typeIdc) |
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| 139 | { |
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| 140 | case SAO_TYPE_EO_0: |
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| 141 | { |
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| 142 | m_skipLinesR[SAO_Y ][typeIdc]= 5; |
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| 143 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 3; |
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| 144 | |
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| 145 | m_skipLinesB[SAO_Y ][typeIdc]= 3; |
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| 146 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 1; |
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| 147 | } |
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| 148 | break; |
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| 149 | case SAO_TYPE_EO_90: |
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| 150 | { |
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| 151 | m_skipLinesR[SAO_Y ][typeIdc]= 4; |
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| 152 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 2; |
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| 153 | |
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| 154 | m_skipLinesB[SAO_Y ][typeIdc]= 4; |
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| 155 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 2; |
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| 156 | } |
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| 157 | break; |
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| 158 | case SAO_TYPE_EO_135: |
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| 159 | case SAO_TYPE_EO_45: |
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| 160 | { |
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| 161 | m_skipLinesR[SAO_Y ][typeIdc]= 5; |
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| 162 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 3; |
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| 163 | |
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| 164 | m_skipLinesB[SAO_Y ][typeIdc]= 4; |
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| 165 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 2; |
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| 166 | } |
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| 167 | break; |
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| 168 | case SAO_TYPE_BO: |
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| 169 | { |
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| 170 | m_skipLinesR[SAO_Y ][typeIdc]= 4; |
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| 171 | m_skipLinesR[SAO_Cb][typeIdc]= m_skipLinesR[SAO_Cr][typeIdc]= 2; |
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| 172 | |
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| 173 | m_skipLinesB[SAO_Y ][typeIdc]= 3; |
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| 174 | m_skipLinesB[SAO_Cb][typeIdc]= m_skipLinesB[SAO_Cr][typeIdc]= 1; |
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| 175 | } |
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| 176 | break; |
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| 177 | default: |
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| 178 | { |
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| 179 | printf("Not a supported type"); |
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| 180 | assert(0); |
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| 181 | exit(-1); |
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| 182 | } |
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| 183 | } |
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| 184 | } |
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| 185 | #endif |
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| 186 | } |
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| 187 | |
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| 188 | } |
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| 189 | |
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| 190 | Void TEncSampleAdaptiveOffset::destroyEncData() |
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| 191 | { |
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| 192 | if(m_pppcRDSbacCoder != NULL) |
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| 193 | { |
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| 194 | for (Int cs = 0; cs < NUM_SAO_CABACSTATE_LABELS; cs ++ ) |
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| 195 | { |
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| 196 | delete m_pppcRDSbacCoder[cs]; |
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| 197 | } |
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| 198 | delete[] m_pppcRDSbacCoder; m_pppcRDSbacCoder = NULL; |
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| 199 | } |
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| 200 | |
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| 201 | if(m_pppcBinCoderCABAC != NULL) |
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| 202 | { |
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| 203 | for (Int cs = 0; cs < NUM_SAO_CABACSTATE_LABELS; cs ++ ) |
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| 204 | { |
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| 205 | delete m_pppcBinCoderCABAC[cs]; |
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| 206 | } |
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| 207 | delete[] m_pppcBinCoderCABAC; m_pppcBinCoderCABAC = NULL; |
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| 208 | } |
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| 209 | |
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| 210 | if(m_statData != NULL) |
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| 211 | { |
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| 212 | for(Int i=0; i< m_numCTUsPic; i++) |
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| 213 | { |
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| 214 | for(Int compIdx=0; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
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| 215 | { |
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| 216 | delete[] m_statData[i][compIdx]; |
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| 217 | } |
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| 218 | delete[] m_statData[i]; |
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| 219 | } |
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| 220 | delete[] m_statData; m_statData = NULL; |
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| 221 | } |
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| 222 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 223 | if(m_preDBFstatData != NULL) |
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| 224 | { |
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| 225 | for(Int i=0; i< m_numCTUsPic; i++) |
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| 226 | { |
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| 227 | for(Int compIdx=0; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
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| 228 | { |
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| 229 | delete[] m_preDBFstatData[i][compIdx]; |
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| 230 | } |
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| 231 | delete[] m_preDBFstatData[i]; |
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| 232 | } |
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| 233 | delete[] m_preDBFstatData; m_preDBFstatData = NULL; |
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| 234 | } |
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| 235 | |
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| 236 | #endif |
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| 237 | } |
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| 238 | |
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| 239 | Void TEncSampleAdaptiveOffset::initRDOCabacCoder(TEncSbac* pcRDGoOnSbacCoder, TComSlice* pcSlice) |
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| 240 | { |
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| 241 | m_pcRDGoOnSbacCoder = pcRDGoOnSbacCoder; |
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| 242 | m_pcRDGoOnSbacCoder->setSlice(pcSlice); |
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| 243 | m_pcRDGoOnSbacCoder->resetEntropy(); |
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| 244 | m_pcRDGoOnSbacCoder->resetBits(); |
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| 245 | |
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| 246 | m_pcRDGoOnSbacCoder->store( m_pppcRDSbacCoder[SAO_CABACSTATE_PIC_INIT]); |
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| 247 | } |
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| 248 | |
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| 249 | |
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| 250 | |
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| 251 | Void TEncSampleAdaptiveOffset::SAOProcess(TComPic* pPic, Bool* sliceEnabled, const Double *lambdas |
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| 252 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 253 | , Bool isPreDBFSamplesUsed |
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| 254 | #endif |
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| 255 | ) |
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| 256 | { |
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| 257 | TComPicYuv* orgYuv= pPic->getPicYuvOrg(); |
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| 258 | TComPicYuv* resYuv= pPic->getPicYuvRec(); |
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| 259 | m_lambda[SAO_Y]= lambdas[0]; m_lambda[SAO_Cb]= lambdas[1]; m_lambda[SAO_Cr]= lambdas[2]; |
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| 260 | TComPicYuv* srcYuv = m_tempPicYuv; |
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| 261 | resYuv->copyToPic(srcYuv); |
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| 262 | srcYuv->setBorderExtension(false); |
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| 263 | srcYuv->extendPicBorder(); |
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| 264 | |
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| 265 | //collect statistics |
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| 266 | getStatistics(m_statData, orgYuv, srcYuv, pPic); |
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| 267 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 268 | if(isPreDBFSamplesUsed) |
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| 269 | { |
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| 270 | addPreDBFStatistics(m_statData); |
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| 271 | } |
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| 272 | #endif |
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| 273 | //slice on/off |
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| 274 | decidePicParams(sliceEnabled, pPic->getSlice(0)->getDepth()); |
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| 275 | |
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| 276 | //block on/off |
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| 277 | SAOBlkParam* reconParams = new SAOBlkParam[m_numCTUsPic]; //temporary parameter buffer for storing reconstructed SAO parameters |
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| 278 | decideBlkParams(pPic, sliceEnabled, m_statData, srcYuv, resYuv, reconParams, pPic->getPicSym()->getSAOBlkParam()); |
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| 279 | delete[] reconParams; |
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| 280 | |
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| 281 | } |
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| 282 | |
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| 283 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 284 | Void TEncSampleAdaptiveOffset::getPreDBFStatistics(TComPic* pPic) |
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| 285 | { |
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| 286 | getStatistics(m_preDBFstatData, pPic->getPicYuvOrg(), pPic->getPicYuvRec(), pPic, true); |
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| 287 | } |
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| 288 | |
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| 289 | Void TEncSampleAdaptiveOffset::addPreDBFStatistics(SAOStatData*** blkStats) |
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| 290 | { |
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| 291 | for(Int n=0; n< m_numCTUsPic; n++) |
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| 292 | { |
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| 293 | for(Int compIdx=0; compIdx < NUM_SAO_COMPONENTS; compIdx++) |
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| 294 | { |
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| 295 | for(Int typeIdc=0; typeIdc < NUM_SAO_NEW_TYPES; typeIdc++) |
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| 296 | { |
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| 297 | blkStats[n][compIdx][typeIdc] += m_preDBFstatData[n][compIdx][typeIdc]; |
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| 298 | } |
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| 299 | } |
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| 300 | } |
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| 301 | } |
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| 302 | |
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| 303 | #endif |
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| 304 | |
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| 305 | Void TEncSampleAdaptiveOffset::getStatistics(SAOStatData*** blkStats, TComPicYuv* orgYuv, TComPicYuv* srcYuv, TComPic* pPic |
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| 306 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 307 | , Bool isCalculatePreDeblockSamples |
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| 308 | #endif |
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| 309 | ) |
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| 310 | { |
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| 311 | Bool isLeftAvail,isRightAvail,isAboveAvail,isBelowAvail,isAboveLeftAvail,isAboveRightAvail,isBelowLeftAvail,isBelowRightAvail; |
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| 312 | |
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| 313 | for(Int ctu= 0; ctu < m_numCTUsPic; ctu++) |
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| 314 | { |
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| 315 | Int yPos = (ctu / m_numCTUInWidth)*m_maxCUHeight; |
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| 316 | Int xPos = (ctu % m_numCTUInWidth)*m_maxCUWidth; |
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| 317 | Int height = (yPos + m_maxCUHeight > m_picHeight)?(m_picHeight- yPos):m_maxCUHeight; |
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| 318 | Int width = (xPos + m_maxCUWidth > m_picWidth )?(m_picWidth - xPos):m_maxCUWidth; |
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| 319 | |
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| 320 | pPic->getPicSym()->deriveLoopFilterBoundaryAvailibility(ctu, isLeftAvail,isRightAvail,isAboveAvail,isBelowAvail,isAboveLeftAvail,isAboveRightAvail,isBelowLeftAvail,isBelowRightAvail); |
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| 321 | |
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| 322 | //NOTE: The number of skipped lines during gathering CTU statistics depends on the slice boundary availabilities. |
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| 323 | //For simplicity, here only picture boundaries are considered. |
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| 324 | |
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| 325 | isRightAvail = (xPos + m_maxCUWidth < m_picWidth ); |
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| 326 | isBelowAvail = (yPos + m_maxCUHeight < m_picHeight); |
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| 327 | isBelowRightAvail = (isRightAvail && isBelowAvail); |
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| 328 | isBelowLeftAvail = ((xPos > 0) && (isBelowAvail)); |
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| 329 | isAboveRightAvail = ((yPos > 0) && (isRightAvail)); |
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| 330 | |
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| 331 | for(Int compIdx=0; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
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| 332 | { |
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| 333 | Bool isLuma = (compIdx == SAO_Y); |
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| 334 | Int formatShift= isLuma?0:1; |
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| 335 | |
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| 336 | Int srcStride = isLuma?srcYuv->getStride():srcYuv->getCStride(); |
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| 337 | Pel* srcBlk = getPicBuf(srcYuv, compIdx)+ (yPos >> formatShift)*srcStride+ (xPos >> formatShift); |
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| 338 | |
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| 339 | Int orgStride = isLuma?orgYuv->getStride():orgYuv->getCStride(); |
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| 340 | Pel* orgBlk = getPicBuf(orgYuv, compIdx)+ (yPos >> formatShift)*orgStride+ (xPos >> formatShift); |
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| 341 | |
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| 342 | getBlkStats(compIdx, blkStats[ctu][compIdx] |
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| 343 | , srcBlk, orgBlk, srcStride, orgStride, (width >> formatShift), (height >> formatShift) |
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| 344 | , isLeftAvail, isRightAvail, isAboveAvail, isBelowAvail, isAboveLeftAvail, isAboveRightAvail, isBelowLeftAvail, isBelowRightAvail |
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| 345 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
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| 346 | , isCalculatePreDeblockSamples |
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| 347 | #endif |
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| 348 | ); |
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| 349 | |
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| 350 | } |
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| 351 | } |
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| 352 | } |
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| 353 | |
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| 354 | Void TEncSampleAdaptiveOffset::decidePicParams(Bool* sliceEnabled, Int picTempLayer) |
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| 355 | { |
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| 356 | //decide sliceEnabled[compIdx] |
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| 357 | for (Int compIdx=0; compIdx<NUM_SAO_COMPONENTS; compIdx++) |
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| 358 | { |
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| 359 | // reset flags & counters |
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| 360 | sliceEnabled[compIdx] = true; |
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| 361 | |
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| 362 | #if SAO_ENCODING_CHOICE |
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| 363 | #if SAO_ENCODING_CHOICE_CHROMA |
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| 364 | // decide slice-level on/off based on previous results |
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| 365 | if( (picTempLayer > 0) |
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| 366 | && (m_saoDisabledRate[compIdx][picTempLayer-1] > ((compIdx==SAO_Y) ? SAO_ENCODING_RATE : SAO_ENCODING_RATE_CHROMA)) ) |
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| 367 | { |
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| 368 | sliceEnabled[compIdx] = false; |
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| 369 | } |
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| 370 | #else |
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| 371 | // decide slice-level on/off based on previous results |
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| 372 | if( (picTempLayer > 0) |
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| 373 | && (m_saoDisabledRate[SAO_Y][0] > SAO_ENCODING_RATE) ) |
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| 374 | { |
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| 375 | sliceEnabled[compIdx] = false; |
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| 376 | } |
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| 377 | #endif |
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| 378 | #endif |
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| 379 | } |
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| 380 | } |
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| 381 | |
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| 382 | Int64 TEncSampleAdaptiveOffset::getDistortion(Int ctu, Int compIdx, Int typeIdc, Int typeAuxInfo, Int* invQuantOffset, SAOStatData& statData) |
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| 383 | { |
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| 384 | Int64 dist=0; |
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| 385 | Int inputBitDepth = (compIdx == SAO_Y) ? g_bitDepthY : g_bitDepthC ; |
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| 386 | Int shift = 2 * DISTORTION_PRECISION_ADJUSTMENT(inputBitDepth-8); |
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| 387 | |
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| 388 | switch(typeIdc) |
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| 389 | { |
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| 390 | case SAO_TYPE_EO_0: |
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| 391 | case SAO_TYPE_EO_90: |
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| 392 | case SAO_TYPE_EO_135: |
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| 393 | case SAO_TYPE_EO_45: |
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| 394 | { |
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| 395 | for (Int offsetIdx=0; offsetIdx<NUM_SAO_EO_CLASSES; offsetIdx++) |
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| 396 | { |
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| 397 | dist += estSaoDist( statData.count[offsetIdx], invQuantOffset[offsetIdx], statData.diff[offsetIdx], shift); |
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| 398 | } |
|---|
| 399 | } |
|---|
| 400 | break; |
|---|
| 401 | case SAO_TYPE_BO: |
|---|
| 402 | { |
|---|
| 403 | for (Int offsetIdx=typeAuxInfo; offsetIdx<typeAuxInfo+4; offsetIdx++) |
|---|
| 404 | { |
|---|
| 405 | Int bandIdx = offsetIdx % NUM_SAO_BO_CLASSES ; |
|---|
| 406 | dist += estSaoDist( statData.count[bandIdx], invQuantOffset[bandIdx], statData.diff[bandIdx], shift); |
|---|
| 407 | } |
|---|
| 408 | } |
|---|
| 409 | break; |
|---|
| 410 | default: |
|---|
| 411 | { |
|---|
| 412 | printf("Not a supported type"); |
|---|
| 413 | assert(0); |
|---|
| 414 | exit(-1); |
|---|
| 415 | } |
|---|
| 416 | } |
|---|
| 417 | |
|---|
| 418 | return dist; |
|---|
| 419 | } |
|---|
| 420 | |
|---|
| 421 | inline Int64 TEncSampleAdaptiveOffset::estSaoDist(Int64 count, Int64 offset, Int64 diffSum, Int shift) |
|---|
| 422 | { |
|---|
| 423 | return (( count*offset*offset-diffSum*offset*2 ) >> shift); |
|---|
| 424 | } |
|---|
| 425 | |
|---|
| 426 | |
|---|
| 427 | inline Int TEncSampleAdaptiveOffset::estIterOffset(Int typeIdx, Int classIdx, Double lambda, Int offsetInput, Int64 count, Int64 diffSum, Int shift, Int bitIncrease, Int64& bestDist, Double& bestCost, Int offsetTh ) |
|---|
| 428 | { |
|---|
| 429 | Int iterOffset, tempOffset; |
|---|
| 430 | Int64 tempDist, tempRate; |
|---|
| 431 | Double tempCost, tempMinCost; |
|---|
| 432 | Int offsetOutput = 0; |
|---|
| 433 | iterOffset = offsetInput; |
|---|
| 434 | // Assuming sending quantized value 0 results in zero offset and sending the value zero needs 1 bit. entropy coder can be used to measure the exact rate here. |
|---|
| 435 | tempMinCost = lambda; |
|---|
| 436 | while (iterOffset != 0) |
|---|
| 437 | { |
|---|
| 438 | // Calculate the bits required for signaling the offset |
|---|
| 439 | tempRate = (typeIdx == SAO_TYPE_BO) ? (abs((Int)iterOffset)+2) : (abs((Int)iterOffset)+1); |
|---|
| 440 | if (abs((Int)iterOffset)==offsetTh) //inclusive |
|---|
| 441 | { |
|---|
| 442 | tempRate --; |
|---|
| 443 | } |
|---|
| 444 | // Do the dequantization before distortion calculation |
|---|
| 445 | tempOffset = iterOffset << bitIncrease; |
|---|
| 446 | tempDist = estSaoDist( count, tempOffset, diffSum, shift); |
|---|
| 447 | tempCost = ((Double)tempDist + lambda * (Double) tempRate); |
|---|
| 448 | if(tempCost < tempMinCost) |
|---|
| 449 | { |
|---|
| 450 | tempMinCost = tempCost; |
|---|
| 451 | offsetOutput = iterOffset; |
|---|
| 452 | bestDist = tempDist; |
|---|
| 453 | bestCost = tempCost; |
|---|
| 454 | } |
|---|
| 455 | iterOffset = (iterOffset > 0) ? (iterOffset-1):(iterOffset+1); |
|---|
| 456 | } |
|---|
| 457 | return offsetOutput; |
|---|
| 458 | } |
|---|
| 459 | |
|---|
| 460 | |
|---|
| 461 | Void TEncSampleAdaptiveOffset::deriveOffsets(Int ctu, Int compIdx, Int typeIdc, SAOStatData& statData, Int* quantOffsets, Int& typeAuxInfo) |
|---|
| 462 | { |
|---|
| 463 | Int bitDepth = (compIdx== SAO_Y) ? g_bitDepthY : g_bitDepthC; |
|---|
| 464 | Int shift = 2 * DISTORTION_PRECISION_ADJUSTMENT(bitDepth-8); |
|---|
| 465 | #if SVC_EXTENSION |
|---|
| 466 | Int offsetTh = getSaoMaxOffsetQVal()[compIdx]; //inclusive |
|---|
| 467 | #else |
|---|
| 468 | Int offsetTh = g_saoMaxOffsetQVal[compIdx]; //inclusive |
|---|
| 469 | #endif |
|---|
| 470 | |
|---|
| 471 | ::memset(quantOffsets, 0, sizeof(Int)*MAX_NUM_SAO_CLASSES); |
|---|
| 472 | |
|---|
| 473 | //derive initial offsets |
|---|
| 474 | Int numClasses = (typeIdc == SAO_TYPE_BO)?((Int)NUM_SAO_BO_CLASSES):((Int)NUM_SAO_EO_CLASSES); |
|---|
| 475 | for(Int classIdx=0; classIdx< numClasses; classIdx++) |
|---|
| 476 | { |
|---|
| 477 | if( (typeIdc != SAO_TYPE_BO) && (classIdx==SAO_CLASS_EO_PLAIN) ) |
|---|
| 478 | { |
|---|
| 479 | continue; //offset will be zero |
|---|
| 480 | } |
|---|
| 481 | |
|---|
| 482 | if(statData.count[classIdx] == 0) |
|---|
| 483 | { |
|---|
| 484 | continue; //offset will be zero |
|---|
| 485 | } |
|---|
| 486 | |
|---|
| 487 | quantOffsets[classIdx] = (Int) xRoundIbdi(bitDepth, (Double)( statData.diff[classIdx]<<(bitDepth-8)) |
|---|
| 488 | / |
|---|
| 489 | (Double)( statData.count[classIdx]<< m_offsetStepLog2[compIdx]) |
|---|
| 490 | ); |
|---|
| 491 | quantOffsets[classIdx] = Clip3(-offsetTh, offsetTh, quantOffsets[classIdx]); |
|---|
| 492 | } |
|---|
| 493 | |
|---|
| 494 | // adjust offsets |
|---|
| 495 | switch(typeIdc) |
|---|
| 496 | { |
|---|
| 497 | case SAO_TYPE_EO_0: |
|---|
| 498 | case SAO_TYPE_EO_90: |
|---|
| 499 | case SAO_TYPE_EO_135: |
|---|
| 500 | case SAO_TYPE_EO_45: |
|---|
| 501 | { |
|---|
| 502 | Int64 classDist; |
|---|
| 503 | Double classCost; |
|---|
| 504 | for(Int classIdx=0; classIdx<NUM_SAO_EO_CLASSES; classIdx++) |
|---|
| 505 | { |
|---|
| 506 | if(classIdx==SAO_CLASS_EO_FULL_VALLEY && quantOffsets[classIdx] < 0) quantOffsets[classIdx] =0; |
|---|
| 507 | if(classIdx==SAO_CLASS_EO_HALF_VALLEY && quantOffsets[classIdx] < 0) quantOffsets[classIdx] =0; |
|---|
| 508 | if(classIdx==SAO_CLASS_EO_HALF_PEAK && quantOffsets[classIdx] > 0) quantOffsets[classIdx] =0; |
|---|
| 509 | if(classIdx==SAO_CLASS_EO_FULL_PEAK && quantOffsets[classIdx] > 0) quantOffsets[classIdx] =0; |
|---|
| 510 | |
|---|
| 511 | if( quantOffsets[classIdx] != 0 ) //iterative adjustment only when derived offset is not zero |
|---|
| 512 | { |
|---|
| 513 | quantOffsets[classIdx] = estIterOffset( typeIdc, classIdx, m_lambda[compIdx], quantOffsets[classIdx], statData.count[classIdx], statData.diff[classIdx], shift, m_offsetStepLog2[compIdx], classDist , classCost , offsetTh ); |
|---|
| 514 | } |
|---|
| 515 | } |
|---|
| 516 | |
|---|
| 517 | typeAuxInfo =0; |
|---|
| 518 | } |
|---|
| 519 | break; |
|---|
| 520 | case SAO_TYPE_BO: |
|---|
| 521 | { |
|---|
| 522 | Int64 distBOClasses[NUM_SAO_BO_CLASSES]; |
|---|
| 523 | Double costBOClasses[NUM_SAO_BO_CLASSES]; |
|---|
| 524 | ::memset(distBOClasses, 0, sizeof(Int64)*NUM_SAO_BO_CLASSES); |
|---|
| 525 | for(Int classIdx=0; classIdx< NUM_SAO_BO_CLASSES; classIdx++) |
|---|
| 526 | { |
|---|
| 527 | costBOClasses[classIdx]= m_lambda[compIdx]; |
|---|
| 528 | if( quantOffsets[classIdx] != 0 ) //iterative adjustment only when derived offset is not zero |
|---|
| 529 | { |
|---|
| 530 | quantOffsets[classIdx] = estIterOffset( typeIdc, classIdx, m_lambda[compIdx], quantOffsets[classIdx], statData.count[classIdx], statData.diff[classIdx], shift, m_offsetStepLog2[compIdx], distBOClasses[classIdx], costBOClasses[classIdx], offsetTh ); |
|---|
| 531 | } |
|---|
| 532 | } |
|---|
| 533 | |
|---|
| 534 | //decide the starting band index |
|---|
| 535 | Double minCost = MAX_DOUBLE, cost; |
|---|
| 536 | for(Int band=0; band< NUM_SAO_BO_CLASSES- 4+ 1; band++) |
|---|
| 537 | { |
|---|
| 538 | cost = costBOClasses[band ]; |
|---|
| 539 | cost += costBOClasses[band+1]; |
|---|
| 540 | cost += costBOClasses[band+2]; |
|---|
| 541 | cost += costBOClasses[band+3]; |
|---|
| 542 | |
|---|
| 543 | if(cost < minCost) |
|---|
| 544 | { |
|---|
| 545 | minCost = cost; |
|---|
| 546 | typeAuxInfo = band; |
|---|
| 547 | } |
|---|
| 548 | } |
|---|
| 549 | //clear those unused classes |
|---|
| 550 | Int clearQuantOffset[NUM_SAO_BO_CLASSES]; |
|---|
| 551 | ::memset(clearQuantOffset, 0, sizeof(Int)*NUM_SAO_BO_CLASSES); |
|---|
| 552 | for(Int i=0; i< 4; i++) |
|---|
| 553 | { |
|---|
| 554 | Int band = (typeAuxInfo+i)%NUM_SAO_BO_CLASSES; |
|---|
| 555 | clearQuantOffset[band] = quantOffsets[band]; |
|---|
| 556 | } |
|---|
| 557 | ::memcpy(quantOffsets, clearQuantOffset, sizeof(Int)*NUM_SAO_BO_CLASSES); |
|---|
| 558 | } |
|---|
| 559 | break; |
|---|
| 560 | default: |
|---|
| 561 | { |
|---|
| 562 | printf("Not a supported type"); |
|---|
| 563 | assert(0); |
|---|
| 564 | exit(-1); |
|---|
| 565 | } |
|---|
| 566 | |
|---|
| 567 | } |
|---|
| 568 | |
|---|
| 569 | |
|---|
| 570 | } |
|---|
| 571 | |
|---|
| 572 | |
|---|
| 573 | Void TEncSampleAdaptiveOffset::deriveModeNewRDO(Int ctu, std::vector<SAOBlkParam*>& mergeList, Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel) |
|---|
| 574 | { |
|---|
| 575 | Double minCost, cost; |
|---|
| 576 | Int rate; |
|---|
| 577 | UInt previousWrittenBits; |
|---|
| 578 | Int64 dist[NUM_SAO_COMPONENTS], modeDist[NUM_SAO_COMPONENTS]; |
|---|
| 579 | SAOOffset testOffset[NUM_SAO_COMPONENTS]; |
|---|
| 580 | Int compIdx; |
|---|
| 581 | Int invQuantOffset[MAX_NUM_SAO_CLASSES]; |
|---|
| 582 | |
|---|
| 583 | modeDist[SAO_Y]= modeDist[SAO_Cb] = modeDist[SAO_Cr] = 0; |
|---|
| 584 | |
|---|
| 585 | //pre-encode merge flags |
|---|
| 586 | modeParam[SAO_Y ].modeIdc = SAO_MODE_OFF; |
|---|
| 587 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[inCabacLabel]); |
|---|
| 588 | #if SVC_EXTENSION |
|---|
| 589 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, getSaoMaxOffsetQVal(), sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), true); |
|---|
| 590 | #else |
|---|
| 591 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), true); |
|---|
| 592 | #endif |
|---|
| 593 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
|---|
| 594 | |
|---|
| 595 | //------ luma --------// |
|---|
| 596 | compIdx = SAO_Y; |
|---|
| 597 | //"off" case as initial cost |
|---|
| 598 | modeParam[compIdx].modeIdc = SAO_MODE_OFF; |
|---|
| 599 | m_pcRDGoOnSbacCoder->resetBits(); |
|---|
| 600 | #if SVC_EXTENSION |
|---|
| 601 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, modeParam[compIdx], sliceEnabled[compIdx], getSaoMaxOffsetQVal()); |
|---|
| 602 | #else |
|---|
| 603 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, modeParam[compIdx], sliceEnabled[compIdx]); |
|---|
| 604 | #endif |
|---|
| 605 | modeDist[compIdx] = 0; |
|---|
| 606 | minCost= m_lambda[compIdx]*((Double)m_pcRDGoOnSbacCoder->getNumberOfWrittenBits()); |
|---|
| 607 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
|---|
| 608 | if(sliceEnabled[compIdx]) |
|---|
| 609 | { |
|---|
| 610 | for(Int typeIdc=0; typeIdc< NUM_SAO_NEW_TYPES; typeIdc++) |
|---|
| 611 | { |
|---|
| 612 | testOffset[compIdx].modeIdc = SAO_MODE_NEW; |
|---|
| 613 | testOffset[compIdx].typeIdc = typeIdc; |
|---|
| 614 | |
|---|
| 615 | //derive coded offset |
|---|
| 616 | deriveOffsets(ctu, compIdx, typeIdc, blkStats[ctu][compIdx][typeIdc], testOffset[compIdx].offset, testOffset[compIdx].typeAuxInfo); |
|---|
| 617 | |
|---|
| 618 | //inversed quantized offsets |
|---|
| 619 | invertQuantOffsets(compIdx, typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, testOffset[compIdx].offset); |
|---|
| 620 | |
|---|
| 621 | //get distortion |
|---|
| 622 | dist[compIdx] = getDistortion(ctu, compIdx, testOffset[compIdx].typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, blkStats[ctu][compIdx][typeIdc]); |
|---|
| 623 | |
|---|
| 624 | //get rate |
|---|
| 625 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
|---|
| 626 | m_pcRDGoOnSbacCoder->resetBits(); |
|---|
| 627 | #if SVC_EXTENSION |
|---|
| 628 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, testOffset[compIdx], sliceEnabled[compIdx], getSaoMaxOffsetQVal()); |
|---|
| 629 | #else |
|---|
| 630 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, testOffset[compIdx], sliceEnabled[compIdx]); |
|---|
| 631 | #endif |
|---|
| 632 | rate = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
|---|
| 633 | cost = (Double)dist[compIdx] + m_lambda[compIdx]*((Double)rate); |
|---|
| 634 | if(cost < minCost) |
|---|
| 635 | { |
|---|
| 636 | minCost = cost; |
|---|
| 637 | modeDist[compIdx] = dist[compIdx]; |
|---|
| 638 | modeParam[compIdx]= testOffset[compIdx]; |
|---|
| 639 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
|---|
| 640 | } |
|---|
| 641 | } |
|---|
| 642 | } |
|---|
| 643 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
|---|
| 644 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
|---|
| 645 | |
|---|
| 646 | //------ chroma --------// |
|---|
| 647 | //"off" case as initial cost |
|---|
| 648 | cost = 0; |
|---|
| 649 | previousWrittenBits = 0; |
|---|
| 650 | m_pcRDGoOnSbacCoder->resetBits(); |
|---|
| 651 | for (Int component = SAO_Cb; component < NUM_SAO_COMPONENTS; component++) |
|---|
| 652 | { |
|---|
| 653 | modeParam[component].modeIdc = SAO_MODE_OFF; |
|---|
| 654 | modeDist [component] = 0; |
|---|
| 655 | |
|---|
| 656 | #if SVC_EXTENSION |
|---|
| 657 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(component, modeParam[component], sliceEnabled[component], getSaoMaxOffsetQVal()); |
|---|
| 658 | #else |
|---|
| 659 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(component, modeParam[component], sliceEnabled[component]); |
|---|
| 660 | #endif |
|---|
| 661 | |
|---|
| 662 | const UInt currentWrittenBits = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
|---|
| 663 | cost += m_lambda[component] * (currentWrittenBits - previousWrittenBits); |
|---|
| 664 | previousWrittenBits = currentWrittenBits; |
|---|
| 665 | } |
|---|
| 666 | |
|---|
| 667 | minCost = cost; |
|---|
| 668 | |
|---|
| 669 | //doesn't need to store cabac status here since the whole CTU parameters will be re-encoded at the end of this function |
|---|
| 670 | |
|---|
| 671 | for(Int typeIdc=0; typeIdc< NUM_SAO_NEW_TYPES; typeIdc++) |
|---|
| 672 | { |
|---|
| 673 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
|---|
| 674 | m_pcRDGoOnSbacCoder->resetBits(); |
|---|
| 675 | previousWrittenBits = 0; |
|---|
| 676 | cost = 0; |
|---|
| 677 | |
|---|
| 678 | for(compIdx= SAO_Cb; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
|---|
| 679 | { |
|---|
| 680 | if(!sliceEnabled[compIdx]) |
|---|
| 681 | { |
|---|
| 682 | testOffset[compIdx].modeIdc = SAO_MODE_OFF; |
|---|
| 683 | dist[compIdx]= 0; |
|---|
| 684 | continue; |
|---|
| 685 | } |
|---|
| 686 | testOffset[compIdx].modeIdc = SAO_MODE_NEW; |
|---|
| 687 | testOffset[compIdx].typeIdc = typeIdc; |
|---|
| 688 | |
|---|
| 689 | //derive offset & get distortion |
|---|
| 690 | deriveOffsets(ctu, compIdx, typeIdc, blkStats[ctu][compIdx][typeIdc], testOffset[compIdx].offset, testOffset[compIdx].typeAuxInfo); |
|---|
| 691 | invertQuantOffsets(compIdx, typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, testOffset[compIdx].offset); |
|---|
| 692 | dist[compIdx]= getDistortion(ctu, compIdx, typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, blkStats[ctu][compIdx][typeIdc]); |
|---|
| 693 | |
|---|
| 694 | #if SVC_EXTENSION |
|---|
| 695 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, testOffset[compIdx], sliceEnabled[compIdx], getSaoMaxOffsetQVal()); |
|---|
| 696 | #else |
|---|
| 697 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, testOffset[compIdx], sliceEnabled[compIdx]); |
|---|
| 698 | #endif |
|---|
| 699 | |
|---|
| 700 | const UInt currentWrittenBits = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
|---|
| 701 | cost += dist[compIdx] + (m_lambda[compIdx] * (currentWrittenBits - previousWrittenBits)); |
|---|
| 702 | previousWrittenBits = currentWrittenBits; |
|---|
| 703 | } |
|---|
| 704 | |
|---|
| 705 | if(cost < minCost) |
|---|
| 706 | { |
|---|
| 707 | minCost = cost; |
|---|
| 708 | for(compIdx= SAO_Cb; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
|---|
| 709 | { |
|---|
| 710 | modeDist [compIdx] = dist [compIdx]; |
|---|
| 711 | modeParam[compIdx] = testOffset[compIdx]; |
|---|
| 712 | } |
|---|
| 713 | } |
|---|
| 714 | } |
|---|
| 715 | |
|---|
| 716 | |
|---|
| 717 | //----- re-gen rate & normalized cost----// |
|---|
| 718 | modeNormCost = 0; |
|---|
| 719 | for(UInt component = SAO_Y; component < NUM_SAO_COMPONENTS; component++) |
|---|
| 720 | { |
|---|
| 721 | modeNormCost += (Double)modeDist[component] / m_lambda[component]; |
|---|
| 722 | } |
|---|
| 723 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[inCabacLabel]); |
|---|
| 724 | m_pcRDGoOnSbacCoder->resetBits(); |
|---|
| 725 | #if SVC_EXTENSION |
|---|
| 726 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, getSaoMaxOffsetQVal(), sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
|---|
| 727 | #else |
|---|
| 728 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
|---|
| 729 | #endif |
|---|
| 730 | modeNormCost += (Double)m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
|---|
| 731 | |
|---|
| 732 | } |
|---|
| 733 | |
|---|
| 734 | Void TEncSampleAdaptiveOffset::deriveModeMergeRDO(Int ctu, std::vector<SAOBlkParam*>& mergeList, Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel) |
|---|
| 735 | { |
|---|
| 736 | Int mergeListSize = (Int)mergeList.size(); |
|---|
| 737 | modeNormCost = MAX_DOUBLE; |
|---|
| 738 | |
|---|
| 739 | Double cost; |
|---|
| 740 | SAOBlkParam testBlkParam; |
|---|
| 741 | |
|---|
| 742 | for(Int mergeType=0; mergeType< mergeListSize; mergeType++) |
|---|
| 743 | { |
|---|
| 744 | if(mergeList[mergeType] == NULL) |
|---|
| 745 | { |
|---|
| 746 | continue; |
|---|
| 747 | } |
|---|
| 748 | |
|---|
| 749 | testBlkParam = *(mergeList[mergeType]); |
|---|
| 750 | //normalized distortion |
|---|
| 751 | Double normDist=0; |
|---|
| 752 | for(Int compIdx=0; compIdx< NUM_SAO_COMPONENTS; compIdx++) |
|---|
| 753 | { |
|---|
| 754 | testBlkParam[compIdx].modeIdc = SAO_MODE_MERGE; |
|---|
| 755 | testBlkParam[compIdx].typeIdc = mergeType; |
|---|
| 756 | |
|---|
| 757 | SAOOffset& mergedOffsetParam = (*(mergeList[mergeType]))[compIdx]; |
|---|
| 758 | |
|---|
| 759 | if( mergedOffsetParam.modeIdc != SAO_MODE_OFF) |
|---|
| 760 | { |
|---|
| 761 | //offsets have been reconstructed. Don't call inversed quantization function. |
|---|
| 762 | normDist += (((Double)getDistortion(ctu, compIdx, mergedOffsetParam.typeIdc, mergedOffsetParam.typeAuxInfo, mergedOffsetParam.offset, blkStats[ctu][compIdx][mergedOffsetParam.typeIdc])) |
|---|
| 763 | /m_lambda[compIdx] |
|---|
| 764 | ); |
|---|
| 765 | } |
|---|
| 766 | |
|---|
| 767 | } |
|---|
| 768 | |
|---|
| 769 | //rate |
|---|
| 770 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[inCabacLabel]); |
|---|
| 771 | m_pcRDGoOnSbacCoder->resetBits(); |
|---|
| 772 | #if SVC_EXTENSION |
|---|
| 773 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(testBlkParam, getSaoMaxOffsetQVal(), sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
|---|
| 774 | #else |
|---|
| 775 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(testBlkParam, sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
|---|
| 776 | #endif |
|---|
| 777 | Int rate = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
|---|
| 778 | |
|---|
| 779 | cost = normDist+(Double)rate; |
|---|
| 780 | |
|---|
| 781 | if(cost < modeNormCost) |
|---|
| 782 | { |
|---|
| 783 | modeNormCost = cost; |
|---|
| 784 | modeParam = testBlkParam; |
|---|
| 785 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
|---|
| 786 | } |
|---|
| 787 | } |
|---|
| 788 | |
|---|
| 789 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
|---|
| 790 | |
|---|
| 791 | |
|---|
| 792 | } |
|---|
| 793 | |
|---|
| 794 | Void TEncSampleAdaptiveOffset::decideBlkParams(TComPic* pic, Bool* sliceEnabled, SAOStatData*** blkStats, TComPicYuv* srcYuv, TComPicYuv* resYuv, SAOBlkParam* reconParams, SAOBlkParam* codedParams) |
|---|
| 795 | { |
|---|
| 796 | Bool isAllBlksDisabled = false; |
|---|
| 797 | if(!sliceEnabled[SAO_Y] && !sliceEnabled[SAO_Cb] && !sliceEnabled[SAO_Cr]) |
|---|
| 798 | { |
|---|
| 799 | isAllBlksDisabled = true; |
|---|
| 800 | } |
|---|
| 801 | |
|---|
| 802 | m_pcRDGoOnSbacCoder->load(m_pppcRDSbacCoder[ SAO_CABACSTATE_PIC_INIT ]); |
|---|
| 803 | |
|---|
| 804 | SAOBlkParam modeParam; |
|---|
| 805 | Double minCost, modeCost; |
|---|
| 806 | |
|---|
| 807 | for(Int ctu=0; ctu< m_numCTUsPic; ctu++) |
|---|
| 808 | { |
|---|
| 809 | if(isAllBlksDisabled) |
|---|
| 810 | { |
|---|
| 811 | codedParams[ctu].reset(); |
|---|
| 812 | continue; |
|---|
| 813 | } |
|---|
| 814 | |
|---|
| 815 | m_pcRDGoOnSbacCoder->store(m_pppcRDSbacCoder[ SAO_CABACSTATE_BLK_CUR ]); |
|---|
| 816 | |
|---|
| 817 | //get merge list |
|---|
| 818 | std::vector<SAOBlkParam*> mergeList; |
|---|
| 819 | getMergeList(pic, ctu, reconParams, mergeList); |
|---|
| 820 | |
|---|
| 821 | minCost = MAX_DOUBLE; |
|---|
| 822 | for(Int mode=0; mode < NUM_SAO_MODES; mode++) |
|---|
| 823 | { |
|---|
| 824 | switch(mode) |
|---|
| 825 | { |
|---|
| 826 | case SAO_MODE_OFF: |
|---|
| 827 | { |
|---|
| 828 | continue; //not necessary, since all-off case will be tested in SAO_MODE_NEW case. |
|---|
| 829 | } |
|---|
| 830 | break; |
|---|
| 831 | case SAO_MODE_NEW: |
|---|
| 832 | { |
|---|
| 833 | deriveModeNewRDO(ctu, mergeList, sliceEnabled, blkStats, modeParam, modeCost, m_pppcRDSbacCoder, SAO_CABACSTATE_BLK_CUR); |
|---|
| 834 | |
|---|
| 835 | } |
|---|
| 836 | break; |
|---|
| 837 | case SAO_MODE_MERGE: |
|---|
| 838 | { |
|---|
| 839 | deriveModeMergeRDO(ctu, mergeList, sliceEnabled, blkStats , modeParam, modeCost, m_pppcRDSbacCoder, SAO_CABACSTATE_BLK_CUR); |
|---|
| 840 | } |
|---|
| 841 | break; |
|---|
| 842 | default: |
|---|
| 843 | { |
|---|
| 844 | printf("Not a supported SAO mode\n"); |
|---|
| 845 | assert(0); |
|---|
| 846 | exit(-1); |
|---|
| 847 | } |
|---|
| 848 | } |
|---|
| 849 | |
|---|
| 850 | if(modeCost < minCost) |
|---|
| 851 | { |
|---|
| 852 | minCost = modeCost; |
|---|
| 853 | codedParams[ctu] = modeParam; |
|---|
| 854 | m_pcRDGoOnSbacCoder->store(m_pppcRDSbacCoder[ SAO_CABACSTATE_BLK_NEXT ]); |
|---|
| 855 | |
|---|
| 856 | } |
|---|
| 857 | } //mode |
|---|
| 858 | m_pcRDGoOnSbacCoder->load(m_pppcRDSbacCoder[ SAO_CABACSTATE_BLK_NEXT ]); |
|---|
| 859 | |
|---|
| 860 | //apply reconstructed offsets |
|---|
| 861 | reconParams[ctu] = codedParams[ctu]; |
|---|
| 862 | reconstructBlkSAOParam(reconParams[ctu], mergeList); |
|---|
| 863 | offsetCTU(ctu, srcYuv, resYuv, reconParams[ctu], pic); |
|---|
| 864 | } //ctu |
|---|
| 865 | |
|---|
| 866 | #if SAO_ENCODING_CHOICE |
|---|
| 867 | Int picTempLayer = pic->getSlice(0)->getDepth(); |
|---|
| 868 | Int numLcusForSAOOff[NUM_SAO_COMPONENTS]; |
|---|
| 869 | numLcusForSAOOff[SAO_Y ] = numLcusForSAOOff[SAO_Cb]= numLcusForSAOOff[SAO_Cr]= 0; |
|---|
| 870 | |
|---|
| 871 | for (Int compIdx=0; compIdx<NUM_SAO_COMPONENTS; compIdx++) |
|---|
| 872 | { |
|---|
| 873 | for(Int ctu=0; ctu< m_numCTUsPic; ctu++) |
|---|
| 874 | { |
|---|
| 875 | if( reconParams[ctu][compIdx].modeIdc == SAO_MODE_OFF) |
|---|
| 876 | { |
|---|
| 877 | numLcusForSAOOff[compIdx]++; |
|---|
| 878 | } |
|---|
| 879 | } |
|---|
| 880 | } |
|---|
| 881 | #if SAO_ENCODING_CHOICE_CHROMA |
|---|
| 882 | for (Int compIdx=0; compIdx<NUM_SAO_COMPONENTS; compIdx++) |
|---|
| 883 | { |
|---|
| 884 | m_saoDisabledRate[compIdx][picTempLayer] = (Double)numLcusForSAOOff[compIdx]/(Double)m_numCTUsPic; |
|---|
| 885 | } |
|---|
| 886 | #else |
|---|
| 887 | if (picTempLayer == 0) |
|---|
| 888 | { |
|---|
| 889 | m_saoDisabledRate[SAO_Y][0] = (Double)(numLcusForSAOOff[SAO_Y]+numLcusForSAOOff[SAO_Cb]+numLcusForSAOOff[SAO_Cr])/(Double)(m_numCTUsPic*3); |
|---|
| 890 | } |
|---|
| 891 | #endif |
|---|
| 892 | #endif |
|---|
| 893 | } |
|---|
| 894 | |
|---|
| 895 | |
|---|
| 896 | Void TEncSampleAdaptiveOffset::getBlkStats(Int compIdx, SAOStatData* statsDataTypes |
|---|
| 897 | , Pel* srcBlk, Pel* orgBlk, Int srcStride, Int orgStride, Int width, Int height |
|---|
| 898 | , Bool isLeftAvail, Bool isRightAvail, Bool isAboveAvail, Bool isBelowAvail, Bool isAboveLeftAvail, Bool isAboveRightAvail, Bool isBelowLeftAvail, Bool isBelowRightAvail |
|---|
| 899 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 900 | , Bool isCalculatePreDeblockSamples |
|---|
| 901 | #endif |
|---|
| 902 | ) |
|---|
| 903 | { |
|---|
| 904 | if(m_lineBufWidth != m_maxCUWidth) |
|---|
| 905 | { |
|---|
| 906 | m_lineBufWidth = m_maxCUWidth; |
|---|
| 907 | |
|---|
| 908 | if (m_signLineBuf1) delete[] m_signLineBuf1; m_signLineBuf1 = NULL; |
|---|
| 909 | m_signLineBuf1 = new Char[m_lineBufWidth+1]; |
|---|
| 910 | |
|---|
| 911 | if (m_signLineBuf2) delete[] m_signLineBuf2; m_signLineBuf2 = NULL; |
|---|
| 912 | m_signLineBuf2 = new Char[m_lineBufWidth+1]; |
|---|
| 913 | } |
|---|
| 914 | |
|---|
| 915 | Int x,y, startX, startY, endX, endY, edgeType, firstLineStartX, firstLineEndX; |
|---|
| 916 | Char signLeft, signRight, signDown; |
|---|
| 917 | Int64 *diff, *count; |
|---|
| 918 | Pel *srcLine, *orgLine; |
|---|
| 919 | Int* skipLinesR = m_skipLinesR[compIdx]; |
|---|
| 920 | Int* skipLinesB = m_skipLinesB[compIdx]; |
|---|
| 921 | |
|---|
| 922 | for(Int typeIdx=0; typeIdx< NUM_SAO_NEW_TYPES; typeIdx++) |
|---|
| 923 | { |
|---|
| 924 | SAOStatData& statsData= statsDataTypes[typeIdx]; |
|---|
| 925 | statsData.reset(); |
|---|
| 926 | |
|---|
| 927 | srcLine = srcBlk; |
|---|
| 928 | orgLine = orgBlk; |
|---|
| 929 | diff = statsData.diff; |
|---|
| 930 | count = statsData.count; |
|---|
| 931 | switch(typeIdx) |
|---|
| 932 | { |
|---|
| 933 | case SAO_TYPE_EO_0: |
|---|
| 934 | { |
|---|
| 935 | diff +=2; |
|---|
| 936 | count+=2; |
|---|
| 937 | endY = (isBelowAvail) ? (height - skipLinesB[typeIdx]) : height; |
|---|
| 938 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 939 | startX = (!isCalculatePreDeblockSamples) ? (isLeftAvail ? 0 : 1) |
|---|
| 940 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
|---|
| 941 | ; |
|---|
| 942 | #else |
|---|
| 943 | startX = isLeftAvail ? 0 : 1; |
|---|
| 944 | #endif |
|---|
| 945 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 946 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
|---|
| 947 | : (isRightAvail ? width : (width - 1)) |
|---|
| 948 | ; |
|---|
| 949 | #else |
|---|
| 950 | endX = isRightAvail ? (width - skipLinesR[typeIdx]): (width - 1); |
|---|
| 951 | #endif |
|---|
| 952 | for (y=0; y<endY; y++) |
|---|
| 953 | { |
|---|
| 954 | #if SAO_SGN_FUNC |
|---|
| 955 | signLeft = (Char)sgn(srcLine[startX] - srcLine[startX-1]); |
|---|
| 956 | #else |
|---|
| 957 | signLeft = (Char)m_sign[srcLine[startX] - srcLine[startX-1]]; |
|---|
| 958 | #endif |
|---|
| 959 | for (x=startX; x<endX; x++) |
|---|
| 960 | { |
|---|
| 961 | #if SAO_SGN_FUNC |
|---|
| 962 | signRight = (Char)sgn(srcLine[x] - srcLine[x+1]); |
|---|
| 963 | #else |
|---|
| 964 | signRight = (Char)m_sign[srcLine[x] - srcLine[x+1]]; |
|---|
| 965 | #endif |
|---|
| 966 | edgeType = signRight + signLeft; |
|---|
| 967 | signLeft = -signRight; |
|---|
| 968 | |
|---|
| 969 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 970 | count[edgeType] ++; |
|---|
| 971 | } |
|---|
| 972 | srcLine += srcStride; |
|---|
| 973 | orgLine += orgStride; |
|---|
| 974 | } |
|---|
| 975 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 976 | if(isCalculatePreDeblockSamples) |
|---|
| 977 | { |
|---|
| 978 | if(isBelowAvail) |
|---|
| 979 | { |
|---|
| 980 | startX = isLeftAvail ? 0 : 1; |
|---|
| 981 | endX = isRightAvail ? width : (width -1); |
|---|
| 982 | |
|---|
| 983 | for(y=0; y<skipLinesB[typeIdx]; y++) |
|---|
| 984 | { |
|---|
| 985 | #if SAO_SGN_FUNC |
|---|
| 986 | signLeft = (Char)sgn(srcLine[startX] - srcLine[startX-1]); |
|---|
| 987 | #else |
|---|
| 988 | signLeft = (Char)m_sign[srcLine[startX] - srcLine[startX-1]]; |
|---|
| 989 | #endif |
|---|
| 990 | for (x=startX; x<endX; x++) |
|---|
| 991 | { |
|---|
| 992 | #if SAO_SGN_FUNC |
|---|
| 993 | signRight = (Char)sgn(srcLine[x] - srcLine[x+1]); |
|---|
| 994 | #else |
|---|
| 995 | signRight = (Char)m_sign[srcLine[x] - srcLine[x+1]]; |
|---|
| 996 | #endif |
|---|
| 997 | edgeType = signRight + signLeft; |
|---|
| 998 | signLeft = -signRight; |
|---|
| 999 | |
|---|
| 1000 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 1001 | count[edgeType] ++; |
|---|
| 1002 | } |
|---|
| 1003 | srcLine += srcStride; |
|---|
| 1004 | orgLine += orgStride; |
|---|
| 1005 | } |
|---|
| 1006 | } |
|---|
| 1007 | } |
|---|
| 1008 | #endif |
|---|
| 1009 | } |
|---|
| 1010 | break; |
|---|
| 1011 | case SAO_TYPE_EO_90: |
|---|
| 1012 | { |
|---|
| 1013 | diff +=2; |
|---|
| 1014 | count+=2; |
|---|
| 1015 | Char *signUpLine = m_signLineBuf1; |
|---|
| 1016 | |
|---|
| 1017 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1018 | startX = (!isCalculatePreDeblockSamples) ? 0 |
|---|
| 1019 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : width) |
|---|
| 1020 | ; |
|---|
| 1021 | #endif |
|---|
| 1022 | startY = isAboveAvail ? 0 : 1; |
|---|
| 1023 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1024 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]) : width) |
|---|
| 1025 | : width |
|---|
| 1026 | ; |
|---|
| 1027 | #else |
|---|
| 1028 | endX = isRightAvail ? (width - skipLinesR[typeIdx]) : width ; |
|---|
| 1029 | #endif |
|---|
| 1030 | endY = isBelowAvail ? (height - skipLinesB[typeIdx]) : (height - 1); |
|---|
| 1031 | if (!isAboveAvail) |
|---|
| 1032 | { |
|---|
| 1033 | srcLine += srcStride; |
|---|
| 1034 | orgLine += orgStride; |
|---|
| 1035 | } |
|---|
| 1036 | |
|---|
| 1037 | Pel* srcLineAbove = srcLine - srcStride; |
|---|
| 1038 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1039 | for (x=startX; x<endX; x++) |
|---|
| 1040 | #else |
|---|
| 1041 | for (x=0; x< endX; x++) |
|---|
| 1042 | #endif |
|---|
| 1043 | { |
|---|
| 1044 | #if SAO_SGN_FUNC |
|---|
| 1045 | signUpLine[x] = (Char)sgn(srcLine[x] - srcLineAbove[x]); |
|---|
| 1046 | #else |
|---|
| 1047 | signUpLine[x] = (Char)m_sign[srcLine[x] - srcLineAbove[x]]; |
|---|
| 1048 | #endif |
|---|
| 1049 | } |
|---|
| 1050 | |
|---|
| 1051 | Pel* srcLineBelow; |
|---|
| 1052 | for (y=startY; y<endY; y++) |
|---|
| 1053 | { |
|---|
| 1054 | srcLineBelow = srcLine + srcStride; |
|---|
| 1055 | |
|---|
| 1056 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1057 | for (x=startX; x<endX; x++) |
|---|
| 1058 | #else |
|---|
| 1059 | for (x=0; x<endX; x++) |
|---|
| 1060 | #endif |
|---|
| 1061 | { |
|---|
| 1062 | #if SAO_SGN_FUNC |
|---|
| 1063 | signDown = (Char)sgn(srcLine[x] - srcLineBelow[x]); |
|---|
| 1064 | #else |
|---|
| 1065 | signDown = (Char)m_sign[srcLine[x] - srcLineBelow[x]]; |
|---|
| 1066 | #endif |
|---|
| 1067 | edgeType = signDown + signUpLine[x]; |
|---|
| 1068 | signUpLine[x]= -signDown; |
|---|
| 1069 | |
|---|
| 1070 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 1071 | count[edgeType] ++; |
|---|
| 1072 | } |
|---|
| 1073 | srcLine += srcStride; |
|---|
| 1074 | orgLine += orgStride; |
|---|
| 1075 | } |
|---|
| 1076 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1077 | if(isCalculatePreDeblockSamples) |
|---|
| 1078 | { |
|---|
| 1079 | if(isBelowAvail) |
|---|
| 1080 | { |
|---|
| 1081 | startX = 0; |
|---|
| 1082 | endX = width; |
|---|
| 1083 | |
|---|
| 1084 | for(y=0; y<skipLinesB[typeIdx]; y++) |
|---|
| 1085 | { |
|---|
| 1086 | srcLineBelow = srcLine + srcStride; |
|---|
| 1087 | srcLineAbove = srcLine - srcStride; |
|---|
| 1088 | |
|---|
| 1089 | for (x=startX; x<endX; x++) |
|---|
| 1090 | { |
|---|
| 1091 | #if SAO_SGN_FUNC |
|---|
| 1092 | edgeType = sgn(srcLine[x] - srcLineBelow[x]) + sgn(srcLine[x] - srcLineAbove[x]); |
|---|
| 1093 | #else |
|---|
| 1094 | edgeType = m_sign[srcLine[x] - srcLineBelow[x]] + m_sign[srcLine[x] - srcLineAbove[x]]; |
|---|
| 1095 | #endif |
|---|
| 1096 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 1097 | count[edgeType] ++; |
|---|
| 1098 | } |
|---|
| 1099 | srcLine += srcStride; |
|---|
| 1100 | orgLine += orgStride; |
|---|
| 1101 | } |
|---|
| 1102 | } |
|---|
| 1103 | } |
|---|
| 1104 | #endif |
|---|
| 1105 | |
|---|
| 1106 | } |
|---|
| 1107 | break; |
|---|
| 1108 | case SAO_TYPE_EO_135: |
|---|
| 1109 | { |
|---|
| 1110 | diff +=2; |
|---|
| 1111 | count+=2; |
|---|
| 1112 | Char *signUpLine, *signDownLine, *signTmpLine; |
|---|
| 1113 | |
|---|
| 1114 | signUpLine = m_signLineBuf1; |
|---|
| 1115 | signDownLine= m_signLineBuf2; |
|---|
| 1116 | |
|---|
| 1117 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1118 | startX = (!isCalculatePreDeblockSamples) ? (isLeftAvail ? 0 : 1) |
|---|
| 1119 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
|---|
| 1120 | ; |
|---|
| 1121 | #else |
|---|
| 1122 | startX = isLeftAvail ? 0 : 1 ; |
|---|
| 1123 | #endif |
|---|
| 1124 | |
|---|
| 1125 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1126 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]): (width - 1)) |
|---|
| 1127 | : (isRightAvail ? width : (width - 1)) |
|---|
| 1128 | ; |
|---|
| 1129 | #else |
|---|
| 1130 | endX = isRightAvail ? (width - skipLinesR[typeIdx]): (width - 1); |
|---|
| 1131 | #endif |
|---|
| 1132 | endY = isBelowAvail ? (height - skipLinesB[typeIdx]) : (height - 1); |
|---|
| 1133 | |
|---|
| 1134 | //prepare 2nd line's upper sign |
|---|
| 1135 | Pel* srcLineBelow = srcLine + srcStride; |
|---|
| 1136 | for (x=startX; x<endX+1; x++) |
|---|
| 1137 | { |
|---|
| 1138 | #if SAO_SGN_FUNC |
|---|
| 1139 | signUpLine[x] = (Char)sgn(srcLineBelow[x] - srcLine[x-1]); |
|---|
| 1140 | #else |
|---|
| 1141 | signUpLine[x] = (Char)m_sign[srcLineBelow[x] - srcLine[x-1]]; |
|---|
| 1142 | #endif |
|---|
| 1143 | } |
|---|
| 1144 | |
|---|
| 1145 | //1st line |
|---|
| 1146 | Pel* srcLineAbove = srcLine - srcStride; |
|---|
| 1147 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1148 | firstLineStartX = (!isCalculatePreDeblockSamples) ? (isAboveLeftAvail ? 0 : 1) : startX; |
|---|
| 1149 | firstLineEndX = (!isCalculatePreDeblockSamples) ? (isAboveAvail ? endX : 1) : endX; |
|---|
| 1150 | #else |
|---|
| 1151 | firstLineStartX = isAboveLeftAvail ? 0 : 1; |
|---|
| 1152 | firstLineEndX = isAboveAvail ? endX : 1; |
|---|
| 1153 | #endif |
|---|
| 1154 | for(x=firstLineStartX; x<firstLineEndX; x++) |
|---|
| 1155 | { |
|---|
| 1156 | #if SAO_SGN_FUNC |
|---|
| 1157 | edgeType = sgn(srcLine[x] - srcLineAbove[x-1]) - signUpLine[x+1]; |
|---|
| 1158 | #else |
|---|
| 1159 | edgeType = m_sign[srcLine[x] - srcLineAbove[x-1]] - signUpLine[x+1]; |
|---|
| 1160 | #endif |
|---|
| 1161 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 1162 | count[edgeType] ++; |
|---|
| 1163 | } |
|---|
| 1164 | srcLine += srcStride; |
|---|
| 1165 | orgLine += orgStride; |
|---|
| 1166 | |
|---|
| 1167 | |
|---|
| 1168 | //middle lines |
|---|
| 1169 | for (y=1; y<endY; y++) |
|---|
| 1170 | { |
|---|
| 1171 | srcLineBelow = srcLine + srcStride; |
|---|
| 1172 | |
|---|
| 1173 | for (x=startX; x<endX; x++) |
|---|
| 1174 | { |
|---|
| 1175 | #if SAO_SGN_FUNC |
|---|
| 1176 | signDown = (Char)sgn(srcLine[x] - srcLineBelow[x+1]); |
|---|
| 1177 | #else |
|---|
| 1178 | signDown = (Char)m_sign[srcLine[x] - srcLineBelow[x+1]] ; |
|---|
| 1179 | #endif |
|---|
| 1180 | edgeType = signDown + signUpLine[x]; |
|---|
| 1181 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 1182 | count[edgeType] ++; |
|---|
| 1183 | |
|---|
| 1184 | signDownLine[x+1] = -signDown; |
|---|
| 1185 | } |
|---|
| 1186 | #if SAO_SGN_FUNC |
|---|
| 1187 | signDownLine[startX] = (Char)sgn(srcLineBelow[startX] - srcLine[startX-1]); |
|---|
| 1188 | #else |
|---|
| 1189 | signDownLine[startX] = (Char)m_sign[srcLineBelow[startX] - srcLine[startX-1]]; |
|---|
| 1190 | #endif |
|---|
| 1191 | |
|---|
| 1192 | signTmpLine = signUpLine; |
|---|
| 1193 | signUpLine = signDownLine; |
|---|
| 1194 | signDownLine = signTmpLine; |
|---|
| 1195 | |
|---|
| 1196 | srcLine += srcStride; |
|---|
| 1197 | orgLine += orgStride; |
|---|
| 1198 | } |
|---|
| 1199 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1200 | if(isCalculatePreDeblockSamples) |
|---|
| 1201 | { |
|---|
| 1202 | if(isBelowAvail) |
|---|
| 1203 | { |
|---|
| 1204 | startX = isLeftAvail ? 0 : 1 ; |
|---|
| 1205 | endX = isRightAvail ? width : (width -1); |
|---|
| 1206 | |
|---|
| 1207 | for(y=0; y<skipLinesB[typeIdx]; y++) |
|---|
| 1208 | { |
|---|
| 1209 | srcLineBelow = srcLine + srcStride; |
|---|
| 1210 | srcLineAbove = srcLine - srcStride; |
|---|
| 1211 | |
|---|
| 1212 | for (x=startX; x< endX; x++) |
|---|
| 1213 | { |
|---|
| 1214 | #if SAO_SGN_FUNC |
|---|
| 1215 | edgeType = sgn(srcLine[x] - srcLineBelow[x+1]) + sgn(srcLine[x] - srcLineAbove[x-1]); |
|---|
| 1216 | #else |
|---|
| 1217 | edgeType = m_sign[srcLine[x] - srcLineBelow[x+1]] + m_sign[srcLine[x] - srcLineAbove[x-1]]; |
|---|
| 1218 | #endif |
|---|
| 1219 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 1220 | count[edgeType] ++; |
|---|
| 1221 | } |
|---|
| 1222 | srcLine += srcStride; |
|---|
| 1223 | orgLine += orgStride; |
|---|
| 1224 | } |
|---|
| 1225 | } |
|---|
| 1226 | } |
|---|
| 1227 | #endif |
|---|
| 1228 | } |
|---|
| 1229 | break; |
|---|
| 1230 | case SAO_TYPE_EO_45: |
|---|
| 1231 | { |
|---|
| 1232 | diff +=2; |
|---|
| 1233 | count+=2; |
|---|
| 1234 | Char *signUpLine = m_signLineBuf1+1; |
|---|
| 1235 | |
|---|
| 1236 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1237 | startX = (!isCalculatePreDeblockSamples) ? (isLeftAvail ? 0 : 1) |
|---|
| 1238 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
|---|
| 1239 | ; |
|---|
| 1240 | #else |
|---|
| 1241 | startX = isLeftAvail ? 0 : 1; |
|---|
| 1242 | #endif |
|---|
| 1243 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1244 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
|---|
| 1245 | : (isRightAvail ? width : (width - 1)) |
|---|
| 1246 | ; |
|---|
| 1247 | #else |
|---|
| 1248 | endX = isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1); |
|---|
| 1249 | #endif |
|---|
| 1250 | endY = isBelowAvail ? (height - skipLinesB[typeIdx]) : (height - 1); |
|---|
| 1251 | |
|---|
| 1252 | //prepare 2nd line upper sign |
|---|
| 1253 | Pel* srcLineBelow = srcLine + srcStride; |
|---|
| 1254 | for (x=startX-1; x<endX; x++) |
|---|
| 1255 | { |
|---|
| 1256 | #if SAO_SGN_FUNC |
|---|
| 1257 | signUpLine[x] = (Char)sgn(srcLineBelow[x] - srcLine[x+1]); |
|---|
| 1258 | #else |
|---|
| 1259 | signUpLine[x] = (Char)m_sign[srcLineBelow[x] - srcLine[x+1]]; |
|---|
| 1260 | #endif |
|---|
| 1261 | } |
|---|
| 1262 | |
|---|
| 1263 | |
|---|
| 1264 | //first line |
|---|
| 1265 | Pel* srcLineAbove = srcLine - srcStride; |
|---|
| 1266 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1267 | firstLineStartX = (!isCalculatePreDeblockSamples) ? (isAboveAvail ? startX : endX) |
|---|
| 1268 | : startX |
|---|
| 1269 | ; |
|---|
| 1270 | firstLineEndX = (!isCalculatePreDeblockSamples) ? ((!isRightAvail && isAboveRightAvail) ? width : endX) |
|---|
| 1271 | : endX |
|---|
| 1272 | ; |
|---|
| 1273 | #else |
|---|
| 1274 | firstLineStartX = isAboveAvail ? startX : endX; |
|---|
| 1275 | firstLineEndX = (!isRightAvail && isAboveRightAvail) ? width : endX; |
|---|
| 1276 | #endif |
|---|
| 1277 | for(x=firstLineStartX; x<firstLineEndX; x++) |
|---|
| 1278 | { |
|---|
| 1279 | #if SAO_SGN_FUNC |
|---|
| 1280 | edgeType = sgn(srcLine[x] - srcLineAbove[x+1]) - signUpLine[x-1]; |
|---|
| 1281 | #else |
|---|
| 1282 | edgeType = m_sign[srcLine[x] - srcLineAbove[x+1]] - signUpLine[x-1]; |
|---|
| 1283 | #endif |
|---|
| 1284 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 1285 | count[edgeType] ++; |
|---|
| 1286 | } |
|---|
| 1287 | |
|---|
| 1288 | srcLine += srcStride; |
|---|
| 1289 | orgLine += orgStride; |
|---|
| 1290 | |
|---|
| 1291 | //middle lines |
|---|
| 1292 | for (y=1; y<endY; y++) |
|---|
| 1293 | { |
|---|
| 1294 | srcLineBelow = srcLine + srcStride; |
|---|
| 1295 | |
|---|
| 1296 | for(x=startX; x<endX; x++) |
|---|
| 1297 | { |
|---|
| 1298 | #if SAO_SGN_FUNC |
|---|
| 1299 | signDown = (Char)sgn(srcLine[x] - srcLineBelow[x-1]); |
|---|
| 1300 | #else |
|---|
| 1301 | signDown = (Char)m_sign[srcLine[x] - srcLineBelow[x-1]] ; |
|---|
| 1302 | #endif |
|---|
| 1303 | edgeType = signDown + signUpLine[x]; |
|---|
| 1304 | |
|---|
| 1305 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 1306 | count[edgeType] ++; |
|---|
| 1307 | |
|---|
| 1308 | signUpLine[x-1] = -signDown; |
|---|
| 1309 | } |
|---|
| 1310 | #if SAO_SGN_FUNC |
|---|
| 1311 | signUpLine[endX-1] = (Char)sgn(srcLineBelow[endX-1] - srcLine[endX]); |
|---|
| 1312 | #else |
|---|
| 1313 | signUpLine[endX-1] = (Char)m_sign[srcLineBelow[endX-1] - srcLine[endX]]; |
|---|
| 1314 | #endif |
|---|
| 1315 | srcLine += srcStride; |
|---|
| 1316 | orgLine += orgStride; |
|---|
| 1317 | } |
|---|
| 1318 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1319 | if(isCalculatePreDeblockSamples) |
|---|
| 1320 | { |
|---|
| 1321 | if(isBelowAvail) |
|---|
| 1322 | { |
|---|
| 1323 | startX = isLeftAvail ? 0 : 1 ; |
|---|
| 1324 | endX = isRightAvail ? width : (width -1); |
|---|
| 1325 | |
|---|
| 1326 | for(y=0; y<skipLinesB[typeIdx]; y++) |
|---|
| 1327 | { |
|---|
| 1328 | srcLineBelow = srcLine + srcStride; |
|---|
| 1329 | srcLineAbove = srcLine - srcStride; |
|---|
| 1330 | |
|---|
| 1331 | for (x=startX; x<endX; x++) |
|---|
| 1332 | { |
|---|
| 1333 | #if SAO_SGN_FUNC |
|---|
| 1334 | edgeType = sgn(srcLine[x] - srcLineBelow[x-1]) + sgn(srcLine[x] - srcLineAbove[x+1]); |
|---|
| 1335 | #else |
|---|
| 1336 | edgeType = m_sign[srcLine[x] - srcLineBelow[x-1]] + m_sign[srcLine[x] - srcLineAbove[x+1]]; |
|---|
| 1337 | #endif |
|---|
| 1338 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
|---|
| 1339 | count[edgeType] ++; |
|---|
| 1340 | } |
|---|
| 1341 | srcLine += srcStride; |
|---|
| 1342 | orgLine += orgStride; |
|---|
| 1343 | } |
|---|
| 1344 | } |
|---|
| 1345 | } |
|---|
| 1346 | #endif |
|---|
| 1347 | } |
|---|
| 1348 | break; |
|---|
| 1349 | case SAO_TYPE_BO: |
|---|
| 1350 | { |
|---|
| 1351 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1352 | startX = (!isCalculatePreDeblockSamples)?0 |
|---|
| 1353 | :( isRightAvail?(width- skipLinesR[typeIdx]):width) |
|---|
| 1354 | ; |
|---|
| 1355 | endX = (!isCalculatePreDeblockSamples)?(isRightAvail ? (width - skipLinesR[typeIdx]) : width ) |
|---|
| 1356 | :width |
|---|
| 1357 | ; |
|---|
| 1358 | #else |
|---|
| 1359 | endX = isRightAvail ? (width- skipLinesR[typeIdx]) : width; |
|---|
| 1360 | #endif |
|---|
| 1361 | endY = isBelowAvail ? (height- skipLinesB[typeIdx]) : height; |
|---|
| 1362 | Int shiftBits = ((compIdx == SAO_Y)?g_bitDepthY:g_bitDepthC)- NUM_SAO_BO_CLASSES_LOG2; |
|---|
| 1363 | for (y=0; y< endY; y++) |
|---|
| 1364 | { |
|---|
| 1365 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1366 | for (x=startX; x< endX; x++) |
|---|
| 1367 | #else |
|---|
| 1368 | for (x=0; x< endX; x++) |
|---|
| 1369 | #endif |
|---|
| 1370 | { |
|---|
| 1371 | |
|---|
| 1372 | Int bandIdx= srcLine[x] >> shiftBits; |
|---|
| 1373 | diff [bandIdx] += (orgLine[x] - srcLine[x]); |
|---|
| 1374 | count[bandIdx] ++; |
|---|
| 1375 | } |
|---|
| 1376 | srcLine += srcStride; |
|---|
| 1377 | orgLine += orgStride; |
|---|
| 1378 | } |
|---|
| 1379 | #if SAO_ENCODE_ALLOW_USE_PREDEBLOCK |
|---|
| 1380 | if(isCalculatePreDeblockSamples) |
|---|
| 1381 | { |
|---|
| 1382 | if(isBelowAvail) |
|---|
| 1383 | { |
|---|
| 1384 | startX = 0; |
|---|
| 1385 | endX = width; |
|---|
| 1386 | |
|---|
| 1387 | for(y= 0; y< skipLinesB[typeIdx]; y++) |
|---|
| 1388 | { |
|---|
| 1389 | for (x=startX; x< endX; x++) |
|---|
| 1390 | { |
|---|
| 1391 | Int bandIdx= srcLine[x] >> shiftBits; |
|---|
| 1392 | diff [bandIdx] += (orgLine[x] - srcLine[x]); |
|---|
| 1393 | count[bandIdx] ++; |
|---|
| 1394 | } |
|---|
| 1395 | srcLine += srcStride; |
|---|
| 1396 | orgLine += orgStride; |
|---|
| 1397 | |
|---|
| 1398 | } |
|---|
| 1399 | |
|---|
| 1400 | } |
|---|
| 1401 | } |
|---|
| 1402 | #endif |
|---|
| 1403 | } |
|---|
| 1404 | break; |
|---|
| 1405 | default: |
|---|
| 1406 | { |
|---|
| 1407 | printf("Not a supported SAO types\n"); |
|---|
| 1408 | assert(0); |
|---|
| 1409 | exit(-1); |
|---|
| 1410 | } |
|---|
| 1411 | } |
|---|
| 1412 | } |
|---|
| 1413 | } |
|---|
| 1414 | |
|---|
| 1415 | //! \} |
|---|