[313] | 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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[1029] | 4 | * granted under this license. |
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[313] | 5 | * |
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[1259] | 6 | * Copyright (c) 2010-2015, ITU/ISO/IEC |
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[313] | 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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[1029] | 34 | /** |
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[313] | 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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[540] | 47 | |
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[1260] | 48 | //! rounding with IBDI |
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[540] | 49 | inline Double xRoundIbdi2(Int bitDepth, Double x) |
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| 50 | { |
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| 51 | 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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| 52 | } |
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| 53 | |
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| 54 | inline Double xRoundIbdi(Int bitDepth, Double x) |
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| 55 | { |
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| 56 | return (bitDepth > 8 ? xRoundIbdi2(bitDepth, (x)) : ((x)>=0 ? ((Int)((x)+0.5)) : ((Int)((x)-0.5)))) ; |
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| 57 | } |
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| 58 | |
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| 59 | |
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[313] | 60 | TEncSampleAdaptiveOffset::TEncSampleAdaptiveOffset() |
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| 61 | { |
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[1029] | 62 | m_pppcRDSbacCoder = NULL; |
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[540] | 63 | m_pcRDGoOnSbacCoder = NULL; |
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[1029] | 64 | m_pppcBinCoderCABAC = NULL; |
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[540] | 65 | m_statData = NULL; |
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| 66 | m_preDBFstatData = NULL; |
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| 67 | } |
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| 68 | |
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| 69 | TEncSampleAdaptiveOffset::~TEncSampleAdaptiveOffset() |
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| 70 | { |
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| 71 | destroyEncData(); |
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| 72 | } |
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| 73 | |
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| 74 | Void TEncSampleAdaptiveOffset::createEncData(Bool isPreDBFSamplesUsed) |
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| 75 | { |
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| 76 | |
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| 77 | //cabac coder for RDO |
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| 78 | m_pppcRDSbacCoder = new TEncSbac* [NUM_SAO_CABACSTATE_LABELS]; |
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[1029] | 79 | #if FAST_BIT_EST |
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[540] | 80 | m_pppcBinCoderCABAC = new TEncBinCABACCounter* [NUM_SAO_CABACSTATE_LABELS]; |
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[1029] | 81 | #else |
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| 82 | m_pppcBinCoderCABAC = new TEncBinCABAC* [NUM_SAO_CABACSTATE_LABELS]; |
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| 83 | #endif |
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[540] | 84 | |
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| 85 | for(Int cs=0; cs < NUM_SAO_CABACSTATE_LABELS; cs++) |
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| 86 | { |
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| 87 | m_pppcRDSbacCoder[cs] = new TEncSbac; |
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[1029] | 88 | #if FAST_BIT_EST |
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[540] | 89 | m_pppcBinCoderCABAC[cs] = new TEncBinCABACCounter; |
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[1029] | 90 | #else |
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| 91 | m_pppcBinCoderCABAC[cs] = new TEncBinCABAC; |
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| 92 | #endif |
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[540] | 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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[1029] | 101 | m_statData[i] = new SAOStatData*[MAX_NUM_COMPONENT]; |
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| 102 | for(Int compIdx=0; compIdx < MAX_NUM_COMPONENT; compIdx++) |
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[540] | 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(isPreDBFSamplesUsed) |
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| 108 | { |
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| 109 | m_preDBFstatData = new SAOStatData**[m_numCTUsPic]; |
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| 110 | for(Int i=0; i< m_numCTUsPic; i++) |
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| 111 | { |
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[1029] | 112 | m_preDBFstatData[i] = new SAOStatData*[MAX_NUM_COMPONENT]; |
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| 113 | for(Int compIdx=0; compIdx < MAX_NUM_COMPONENT; compIdx++) |
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[540] | 114 | { |
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| 115 | m_preDBFstatData[i][compIdx] = new SAOStatData[NUM_SAO_NEW_TYPES]; |
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| 116 | } |
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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 | ::memset(m_saoDisabledRate, 0, sizeof(m_saoDisabledRate)); |
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| 122 | |
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| 123 | for(Int typeIdc=0; typeIdc < NUM_SAO_NEW_TYPES; typeIdc++) |
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| 124 | { |
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[1029] | 125 | m_skipLinesR[COMPONENT_Y ][typeIdc]= 5; |
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| 126 | m_skipLinesR[COMPONENT_Cb][typeIdc]= m_skipLinesR[COMPONENT_Cr][typeIdc]= 3; |
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[540] | 127 | |
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[1029] | 128 | m_skipLinesB[COMPONENT_Y ][typeIdc]= 4; |
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| 129 | m_skipLinesB[COMPONENT_Cb][typeIdc]= m_skipLinesB[COMPONENT_Cr][typeIdc]= 2; |
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[540] | 130 | |
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| 131 | if(isPreDBFSamplesUsed) |
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| 132 | { |
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| 133 | switch(typeIdc) |
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| 134 | { |
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| 135 | case SAO_TYPE_EO_0: |
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| 136 | { |
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[1029] | 137 | m_skipLinesR[COMPONENT_Y ][typeIdc]= 5; |
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| 138 | m_skipLinesR[COMPONENT_Cb][typeIdc]= m_skipLinesR[COMPONENT_Cr][typeIdc]= 3; |
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[540] | 139 | |
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[1029] | 140 | m_skipLinesB[COMPONENT_Y ][typeIdc]= 3; |
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| 141 | m_skipLinesB[COMPONENT_Cb][typeIdc]= m_skipLinesB[COMPONENT_Cr][typeIdc]= 1; |
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[540] | 142 | } |
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| 143 | break; |
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| 144 | case SAO_TYPE_EO_90: |
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| 145 | { |
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[1029] | 146 | m_skipLinesR[COMPONENT_Y ][typeIdc]= 4; |
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| 147 | m_skipLinesR[COMPONENT_Cb][typeIdc]= m_skipLinesR[COMPONENT_Cr][typeIdc]= 2; |
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[540] | 148 | |
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[1029] | 149 | m_skipLinesB[COMPONENT_Y ][typeIdc]= 4; |
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| 150 | m_skipLinesB[COMPONENT_Cb][typeIdc]= m_skipLinesB[COMPONENT_Cr][typeIdc]= 2; |
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[540] | 151 | } |
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| 152 | break; |
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| 153 | case SAO_TYPE_EO_135: |
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| 154 | case SAO_TYPE_EO_45: |
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| 155 | { |
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[1029] | 156 | m_skipLinesR[COMPONENT_Y ][typeIdc]= 5; |
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| 157 | m_skipLinesR[COMPONENT_Cb][typeIdc]= m_skipLinesR[COMPONENT_Cr][typeIdc]= 3; |
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[540] | 158 | |
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[1029] | 159 | m_skipLinesB[COMPONENT_Y ][typeIdc]= 4; |
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| 160 | m_skipLinesB[COMPONENT_Cb][typeIdc]= m_skipLinesB[COMPONENT_Cr][typeIdc]= 2; |
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[540] | 161 | } |
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| 162 | break; |
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| 163 | case SAO_TYPE_BO: |
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| 164 | { |
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[1029] | 165 | m_skipLinesR[COMPONENT_Y ][typeIdc]= 4; |
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| 166 | m_skipLinesR[COMPONENT_Cb][typeIdc]= m_skipLinesR[COMPONENT_Cr][typeIdc]= 2; |
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[540] | 167 | |
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[1029] | 168 | m_skipLinesB[COMPONENT_Y ][typeIdc]= 3; |
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| 169 | m_skipLinesB[COMPONENT_Cb][typeIdc]= m_skipLinesB[COMPONENT_Cr][typeIdc]= 1; |
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[540] | 170 | } |
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| 171 | break; |
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| 172 | default: |
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| 173 | { |
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| 174 | printf("Not a supported type"); |
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| 175 | assert(0); |
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| 176 | exit(-1); |
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| 177 | } |
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| 178 | } |
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| 179 | } |
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| 180 | } |
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| 181 | |
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| 182 | } |
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| 183 | |
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| 184 | Void TEncSampleAdaptiveOffset::destroyEncData() |
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| 185 | { |
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| 186 | if(m_pppcRDSbacCoder != NULL) |
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| 187 | { |
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| 188 | for (Int cs = 0; cs < NUM_SAO_CABACSTATE_LABELS; cs ++ ) |
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| 189 | { |
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| 190 | delete m_pppcRDSbacCoder[cs]; |
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| 191 | } |
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| 192 | delete[] m_pppcRDSbacCoder; m_pppcRDSbacCoder = NULL; |
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| 193 | } |
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| 194 | |
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| 195 | if(m_pppcBinCoderCABAC != NULL) |
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| 196 | { |
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| 197 | for (Int cs = 0; cs < NUM_SAO_CABACSTATE_LABELS; cs ++ ) |
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| 198 | { |
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| 199 | delete m_pppcBinCoderCABAC[cs]; |
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| 200 | } |
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| 201 | delete[] m_pppcBinCoderCABAC; m_pppcBinCoderCABAC = NULL; |
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| 202 | } |
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| 203 | |
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| 204 | if(m_statData != NULL) |
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| 205 | { |
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| 206 | for(Int i=0; i< m_numCTUsPic; i++) |
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| 207 | { |
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[1029] | 208 | for(Int compIdx=0; compIdx< MAX_NUM_COMPONENT; compIdx++) |
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[540] | 209 | { |
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| 210 | delete[] m_statData[i][compIdx]; |
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| 211 | } |
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| 212 | delete[] m_statData[i]; |
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| 213 | } |
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| 214 | delete[] m_statData; m_statData = NULL; |
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| 215 | } |
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| 216 | if(m_preDBFstatData != NULL) |
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| 217 | { |
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| 218 | for(Int i=0; i< m_numCTUsPic; i++) |
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| 219 | { |
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[1029] | 220 | for(Int compIdx=0; compIdx< MAX_NUM_COMPONENT; compIdx++) |
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[540] | 221 | { |
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| 222 | delete[] m_preDBFstatData[i][compIdx]; |
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| 223 | } |
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| 224 | delete[] m_preDBFstatData[i]; |
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| 225 | } |
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| 226 | delete[] m_preDBFstatData; m_preDBFstatData = NULL; |
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| 227 | } |
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| 228 | } |
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| 229 | |
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[1029] | 230 | Void TEncSampleAdaptiveOffset::initRDOCabacCoder(TEncSbac* pcRDGoOnSbacCoder, TComSlice* pcSlice) |
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[540] | 231 | { |
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| 232 | m_pcRDGoOnSbacCoder = pcRDGoOnSbacCoder; |
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[1291] | 233 | m_pcRDGoOnSbacCoder->resetEntropy(pcSlice); |
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[540] | 234 | m_pcRDGoOnSbacCoder->resetBits(); |
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| 235 | |
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| 236 | m_pcRDGoOnSbacCoder->store( m_pppcRDSbacCoder[SAO_CABACSTATE_PIC_INIT]); |
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| 237 | } |
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| 238 | |
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| 239 | |
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| 240 | |
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[1344] | 241 | Void TEncSampleAdaptiveOffset::SAOProcess(TComPic* pPic, Bool* sliceEnabled, const Double *lambdas, const Bool bTestSAODisableAtPictureLevel, const Double saoEncodingRate, const Double saoEncodingRateChroma, Bool isPreDBFSamplesUsed ) |
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[540] | 242 | { |
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| 243 | TComPicYuv* orgYuv= pPic->getPicYuvOrg(); |
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| 244 | TComPicYuv* resYuv= pPic->getPicYuvRec(); |
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[1029] | 245 | memcpy(m_lambda, lambdas, sizeof(m_lambda)); |
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[540] | 246 | TComPicYuv* srcYuv = m_tempPicYuv; |
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| 247 | resYuv->copyToPic(srcYuv); |
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| 248 | srcYuv->setBorderExtension(false); |
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| 249 | srcYuv->extendPicBorder(); |
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| 250 | |
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| 251 | //collect statistics |
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| 252 | getStatistics(m_statData, orgYuv, srcYuv, pPic); |
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| 253 | if(isPreDBFSamplesUsed) |
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| 254 | { |
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| 255 | addPreDBFStatistics(m_statData); |
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| 256 | } |
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[1029] | 257 | //slice on/off |
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[1332] | 258 | decidePicParams(sliceEnabled, pPic->getSlice(0)->getDepth(), saoEncodingRate, saoEncodingRateChroma); |
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[540] | 259 | |
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[1029] | 260 | //block on/off |
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[540] | 261 | SAOBlkParam* reconParams = new SAOBlkParam[m_numCTUsPic]; //temporary parameter buffer for storing reconstructed SAO parameters |
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[1332] | 262 | decideBlkParams(pPic, sliceEnabled, m_statData, srcYuv, resYuv, reconParams, pPic->getPicSym()->getSAOBlkParam(), bTestSAODisableAtPictureLevel, saoEncodingRate, saoEncodingRateChroma); |
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[540] | 263 | delete[] reconParams; |
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| 264 | } |
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| 265 | |
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| 266 | Void TEncSampleAdaptiveOffset::getPreDBFStatistics(TComPic* pPic) |
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| 267 | { |
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| 268 | getStatistics(m_preDBFstatData, pPic->getPicYuvOrg(), pPic->getPicYuvRec(), pPic, true); |
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| 269 | } |
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| 270 | |
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| 271 | Void TEncSampleAdaptiveOffset::addPreDBFStatistics(SAOStatData*** blkStats) |
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| 272 | { |
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| 273 | for(Int n=0; n< m_numCTUsPic; n++) |
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| 274 | { |
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[1029] | 275 | for(Int compIdx=0; compIdx < MAX_NUM_COMPONENT; compIdx++) |
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[540] | 276 | { |
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| 277 | for(Int typeIdc=0; typeIdc < NUM_SAO_NEW_TYPES; typeIdc++) |
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| 278 | { |
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| 279 | blkStats[n][compIdx][typeIdc] += m_preDBFstatData[n][compIdx][typeIdc]; |
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| 280 | } |
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| 281 | } |
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| 282 | } |
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| 283 | } |
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| 284 | |
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[1344] | 285 | Void TEncSampleAdaptiveOffset::getStatistics(SAOStatData*** blkStats, TComPicYuv* orgYuv, TComPicYuv* srcYuv, TComPic* pPic, Bool isCalculatePreDeblockSamples) |
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[540] | 286 | { |
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| 287 | Bool isLeftAvail,isRightAvail,isAboveAvail,isBelowAvail,isAboveLeftAvail,isAboveRightAvail,isBelowLeftAvail,isBelowRightAvail; |
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| 288 | |
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[1029] | 289 | const Int numberOfComponents = getNumberValidComponents(m_chromaFormatIDC); |
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| 290 | |
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| 291 | for(Int ctuRsAddr= 0; ctuRsAddr < m_numCTUsPic; ctuRsAddr++) |
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[540] | 292 | { |
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[1029] | 293 | Int yPos = (ctuRsAddr / m_numCTUInWidth)*m_maxCUHeight; |
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| 294 | Int xPos = (ctuRsAddr % m_numCTUInWidth)*m_maxCUWidth; |
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[540] | 295 | Int height = (yPos + m_maxCUHeight > m_picHeight)?(m_picHeight- yPos):m_maxCUHeight; |
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| 296 | Int width = (xPos + m_maxCUWidth > m_picWidth )?(m_picWidth - xPos):m_maxCUWidth; |
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| 297 | |
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[1029] | 298 | pPic->getPicSym()->deriveLoopFilterBoundaryAvailibility(ctuRsAddr, isLeftAvail,isRightAvail,isAboveAvail,isBelowAvail,isAboveLeftAvail,isAboveRightAvail,isBelowLeftAvail,isBelowRightAvail); |
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[540] | 299 | |
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| 300 | //NOTE: The number of skipped lines during gathering CTU statistics depends on the slice boundary availabilities. |
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| 301 | //For simplicity, here only picture boundaries are considered. |
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| 302 | |
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| 303 | isRightAvail = (xPos + m_maxCUWidth < m_picWidth ); |
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| 304 | isBelowAvail = (yPos + m_maxCUHeight < m_picHeight); |
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| 305 | isBelowRightAvail = (isRightAvail && isBelowAvail); |
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| 306 | isBelowLeftAvail = ((xPos > 0) && (isBelowAvail)); |
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| 307 | isAboveRightAvail = ((yPos > 0) && (isRightAvail)); |
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| 308 | |
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[1029] | 309 | for(Int compIdx = 0; compIdx < numberOfComponents; compIdx++) |
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[540] | 310 | { |
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[1029] | 311 | const ComponentID component = ComponentID(compIdx); |
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[540] | 312 | |
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[1029] | 313 | const UInt componentScaleX = getComponentScaleX(component, pPic->getChromaFormat()); |
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| 314 | const UInt componentScaleY = getComponentScaleY(component, pPic->getChromaFormat()); |
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[540] | 315 | |
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[1029] | 316 | Int srcStride = srcYuv->getStride(component); |
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| 317 | Pel* srcBlk = srcYuv->getAddr(component) + ((yPos >> componentScaleY) * srcStride) + (xPos >> componentScaleX); |
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[540] | 318 | |
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[1029] | 319 | Int orgStride = orgYuv->getStride(component); |
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| 320 | Pel* orgBlk = orgYuv->getAddr(component) + ((yPos >> componentScaleY) * orgStride) + (xPos >> componentScaleX); |
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| 321 | |
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[1287] | 322 | #if SVC_EXTENSION |
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| 323 | getBlkStats(component, pPic->getSlice(0)->getBitDepth(toChannelType(component)), blkStats[ctuRsAddr][component] |
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| 324 | #else |
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| 325 | getBlkStats(component, pPic->getPicSym()->getSPS().getBitDepth(toChannelType(component)), blkStats[ctuRsAddr][component] |
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| 326 | #endif |
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[1029] | 327 | , srcBlk, orgBlk, srcStride, orgStride, (width >> componentScaleX), (height >> componentScaleY) |
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[1307] | 328 | , isLeftAvail, isRightAvail, isAboveAvail, isBelowAvail, isAboveLeftAvail, isAboveRightAvail |
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[540] | 329 | , isCalculatePreDeblockSamples |
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| 330 | ); |
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| 331 | |
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| 332 | } |
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| 333 | } |
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| 334 | } |
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| 335 | |
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[1332] | 336 | Void TEncSampleAdaptiveOffset::decidePicParams(Bool* sliceEnabled, Int picTempLayer, const Double saoEncodingRate, const Double saoEncodingRateChroma) |
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[540] | 337 | { |
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| 338 | //decide sliceEnabled[compIdx] |
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[1029] | 339 | const Int numberOfComponents = getNumberValidComponents(m_chromaFormatIDC); |
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| 340 | for (Int compIdx = 0; compIdx < MAX_NUM_COMPONENT; compIdx++) |
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[540] | 341 | { |
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[1029] | 342 | sliceEnabled[compIdx] = false; |
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| 343 | } |
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| 344 | |
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| 345 | for (Int compIdx = 0; compIdx < numberOfComponents; compIdx++) |
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| 346 | { |
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[540] | 347 | // reset flags & counters |
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| 348 | sliceEnabled[compIdx] = true; |
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| 349 | |
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[1332] | 350 | if (saoEncodingRate>0.0) |
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[540] | 351 | { |
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[1332] | 352 | if (saoEncodingRateChroma>0.0) |
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| 353 | { |
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| 354 | // decide slice-level on/off based on previous results |
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| 355 | if( (picTempLayer > 0) |
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| 356 | && (m_saoDisabledRate[compIdx][picTempLayer-1] > ((compIdx==COMPONENT_Y) ? saoEncodingRate : saoEncodingRateChroma)) ) |
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| 357 | { |
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| 358 | sliceEnabled[compIdx] = false; |
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| 359 | } |
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| 360 | } |
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| 361 | else |
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| 362 | { |
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| 363 | // decide slice-level on/off based on previous results |
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| 364 | if( (picTempLayer > 0) |
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| 365 | && (m_saoDisabledRate[COMPONENT_Y][0] > saoEncodingRate) ) |
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| 366 | { |
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| 367 | sliceEnabled[compIdx] = false; |
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| 368 | } |
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| 369 | } |
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[540] | 370 | } |
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| 371 | } |
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| 372 | } |
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| 373 | |
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[1287] | 374 | Int64 TEncSampleAdaptiveOffset::getDistortion(const Int channelBitDepth, Int typeIdc, Int typeAuxInfo, Int* invQuantOffset, SAOStatData& statData) |
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[540] | 375 | { |
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[1029] | 376 | Int64 dist = 0; |
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[1287] | 377 | Int shift = 2 * DISTORTION_PRECISION_ADJUSTMENT(channelBitDepth - 8); |
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[540] | 378 | |
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| 379 | switch(typeIdc) |
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| 380 | { |
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| 381 | case SAO_TYPE_EO_0: |
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| 382 | case SAO_TYPE_EO_90: |
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| 383 | case SAO_TYPE_EO_135: |
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| 384 | case SAO_TYPE_EO_45: |
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| 385 | { |
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| 386 | for (Int offsetIdx=0; offsetIdx<NUM_SAO_EO_CLASSES; offsetIdx++) |
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| 387 | { |
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| 388 | dist += estSaoDist( statData.count[offsetIdx], invQuantOffset[offsetIdx], statData.diff[offsetIdx], shift); |
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[1029] | 389 | } |
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[540] | 390 | } |
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| 391 | break; |
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| 392 | case SAO_TYPE_BO: |
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| 393 | { |
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| 394 | for (Int offsetIdx=typeAuxInfo; offsetIdx<typeAuxInfo+4; offsetIdx++) |
---|
| 395 | { |
---|
[1029] | 396 | Int bandIdx = offsetIdx % NUM_SAO_BO_CLASSES ; |
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[540] | 397 | dist += estSaoDist( statData.count[bandIdx], invQuantOffset[bandIdx], statData.diff[bandIdx], shift); |
---|
| 398 | } |
---|
| 399 | } |
---|
| 400 | break; |
---|
| 401 | default: |
---|
| 402 | { |
---|
| 403 | printf("Not a supported type"); |
---|
| 404 | assert(0); |
---|
| 405 | exit(-1); |
---|
| 406 | } |
---|
| 407 | } |
---|
| 408 | |
---|
| 409 | return dist; |
---|
| 410 | } |
---|
| 411 | |
---|
| 412 | inline Int64 TEncSampleAdaptiveOffset::estSaoDist(Int64 count, Int64 offset, Int64 diffSum, Int shift) |
---|
| 413 | { |
---|
| 414 | return (( count*offset*offset-diffSum*offset*2 ) >> shift); |
---|
| 415 | } |
---|
| 416 | |
---|
| 417 | |
---|
[1307] | 418 | inline Int TEncSampleAdaptiveOffset::estIterOffset(Int typeIdx, Double lambda, Int offsetInput, Int64 count, Int64 diffSum, Int shift, Int bitIncrease, Int64& bestDist, Double& bestCost, Int offsetTh ) |
---|
[540] | 419 | { |
---|
| 420 | Int iterOffset, tempOffset; |
---|
| 421 | Int64 tempDist, tempRate; |
---|
| 422 | Double tempCost, tempMinCost; |
---|
| 423 | Int offsetOutput = 0; |
---|
| 424 | iterOffset = offsetInput; |
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[1029] | 425 | // 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. |
---|
| 426 | tempMinCost = lambda; |
---|
[540] | 427 | while (iterOffset != 0) |
---|
| 428 | { |
---|
| 429 | // Calculate the bits required for signaling the offset |
---|
[1029] | 430 | tempRate = (typeIdx == SAO_TYPE_BO) ? (abs((Int)iterOffset)+2) : (abs((Int)iterOffset)+1); |
---|
| 431 | if (abs((Int)iterOffset)==offsetTh) //inclusive |
---|
| 432 | { |
---|
[540] | 433 | tempRate --; |
---|
| 434 | } |
---|
| 435 | // Do the dequantization before distortion calculation |
---|
| 436 | tempOffset = iterOffset << bitIncrease; |
---|
| 437 | tempDist = estSaoDist( count, tempOffset, diffSum, shift); |
---|
| 438 | tempCost = ((Double)tempDist + lambda * (Double) tempRate); |
---|
| 439 | if(tempCost < tempMinCost) |
---|
| 440 | { |
---|
| 441 | tempMinCost = tempCost; |
---|
| 442 | offsetOutput = iterOffset; |
---|
| 443 | bestDist = tempDist; |
---|
| 444 | bestCost = tempCost; |
---|
| 445 | } |
---|
| 446 | iterOffset = (iterOffset > 0) ? (iterOffset-1):(iterOffset+1); |
---|
| 447 | } |
---|
| 448 | return offsetOutput; |
---|
| 449 | } |
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| 450 | |
---|
[1287] | 451 | Void TEncSampleAdaptiveOffset::deriveOffsets(ComponentID compIdx, const Int channelBitDepth, Int typeIdc, SAOStatData& statData, Int* quantOffsets, Int& typeAuxInfo) |
---|
[540] | 452 | { |
---|
[1287] | 453 | Int bitDepth = channelBitDepth; |
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[1029] | 454 | Int shift = 2 * DISTORTION_PRECISION_ADJUSTMENT(bitDepth-8); |
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[1287] | 455 | Int offsetTh = TComSampleAdaptiveOffset::getMaxOffsetQVal(channelBitDepth); //inclusive |
---|
[540] | 456 | |
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| 457 | ::memset(quantOffsets, 0, sizeof(Int)*MAX_NUM_SAO_CLASSES); |
---|
| 458 | |
---|
[1029] | 459 | //derive initial offsets |
---|
[540] | 460 | Int numClasses = (typeIdc == SAO_TYPE_BO)?((Int)NUM_SAO_BO_CLASSES):((Int)NUM_SAO_EO_CLASSES); |
---|
| 461 | for(Int classIdx=0; classIdx< numClasses; classIdx++) |
---|
| 462 | { |
---|
[1029] | 463 | if( (typeIdc != SAO_TYPE_BO) && (classIdx==SAO_CLASS_EO_PLAIN) ) |
---|
[540] | 464 | { |
---|
| 465 | continue; //offset will be zero |
---|
| 466 | } |
---|
| 467 | |
---|
| 468 | if(statData.count[classIdx] == 0) |
---|
| 469 | { |
---|
| 470 | continue; //offset will be zero |
---|
| 471 | } |
---|
| 472 | |
---|
[1029] | 473 | quantOffsets[classIdx] = (Int) xRoundIbdi(bitDepth, (Double)( statData.diff[classIdx]<<(bitDepth-8)) |
---|
| 474 | / |
---|
[540] | 475 | (Double)( statData.count[classIdx]<< m_offsetStepLog2[compIdx]) |
---|
| 476 | ); |
---|
| 477 | quantOffsets[classIdx] = Clip3(-offsetTh, offsetTh, quantOffsets[classIdx]); |
---|
| 478 | } |
---|
| 479 | |
---|
| 480 | // adjust offsets |
---|
| 481 | switch(typeIdc) |
---|
| 482 | { |
---|
| 483 | case SAO_TYPE_EO_0: |
---|
| 484 | case SAO_TYPE_EO_90: |
---|
| 485 | case SAO_TYPE_EO_135: |
---|
| 486 | case SAO_TYPE_EO_45: |
---|
| 487 | { |
---|
| 488 | Int64 classDist; |
---|
| 489 | Double classCost; |
---|
[1029] | 490 | for(Int classIdx=0; classIdx<NUM_SAO_EO_CLASSES; classIdx++) |
---|
| 491 | { |
---|
[1246] | 492 | if(classIdx==SAO_CLASS_EO_FULL_VALLEY && quantOffsets[classIdx] < 0) |
---|
| 493 | { |
---|
| 494 | quantOffsets[classIdx] =0; |
---|
| 495 | } |
---|
| 496 | if(classIdx==SAO_CLASS_EO_HALF_VALLEY && quantOffsets[classIdx] < 0) |
---|
| 497 | { |
---|
| 498 | quantOffsets[classIdx] =0; |
---|
| 499 | } |
---|
| 500 | if(classIdx==SAO_CLASS_EO_HALF_PEAK && quantOffsets[classIdx] > 0) |
---|
| 501 | { |
---|
| 502 | quantOffsets[classIdx] =0; |
---|
| 503 | } |
---|
| 504 | if(classIdx==SAO_CLASS_EO_FULL_PEAK && quantOffsets[classIdx] > 0) |
---|
| 505 | { |
---|
| 506 | quantOffsets[classIdx] =0; |
---|
| 507 | } |
---|
[540] | 508 | |
---|
| 509 | if( quantOffsets[classIdx] != 0 ) //iterative adjustment only when derived offset is not zero |
---|
| 510 | { |
---|
[1307] | 511 | quantOffsets[classIdx] = estIterOffset( typeIdc, m_lambda[compIdx], quantOffsets[classIdx], statData.count[classIdx], statData.diff[classIdx], shift, m_offsetStepLog2[compIdx], classDist , classCost , offsetTh ); |
---|
[540] | 512 | } |
---|
| 513 | } |
---|
[1029] | 514 | |
---|
[540] | 515 | typeAuxInfo =0; |
---|
| 516 | } |
---|
| 517 | break; |
---|
| 518 | case SAO_TYPE_BO: |
---|
| 519 | { |
---|
| 520 | Int64 distBOClasses[NUM_SAO_BO_CLASSES]; |
---|
| 521 | Double costBOClasses[NUM_SAO_BO_CLASSES]; |
---|
| 522 | ::memset(distBOClasses, 0, sizeof(Int64)*NUM_SAO_BO_CLASSES); |
---|
| 523 | for(Int classIdx=0; classIdx< NUM_SAO_BO_CLASSES; classIdx++) |
---|
[1029] | 524 | { |
---|
[595] | 525 | costBOClasses[classIdx]= m_lambda[compIdx]; |
---|
[540] | 526 | if( quantOffsets[classIdx] != 0 ) //iterative adjustment only when derived offset is not zero |
---|
| 527 | { |
---|
[1307] | 528 | quantOffsets[classIdx] = estIterOffset( typeIdc, m_lambda[compIdx], quantOffsets[classIdx], statData.count[classIdx], statData.diff[classIdx], shift, m_offsetStepLog2[compIdx], distBOClasses[classIdx], costBOClasses[classIdx], offsetTh ); |
---|
[540] | 529 | } |
---|
| 530 | } |
---|
| 531 | |
---|
| 532 | //decide the starting band index |
---|
| 533 | Double minCost = MAX_DOUBLE, cost; |
---|
[1029] | 534 | for(Int band=0; band< NUM_SAO_BO_CLASSES- 4+ 1; band++) |
---|
[540] | 535 | { |
---|
| 536 | cost = costBOClasses[band ]; |
---|
| 537 | cost += costBOClasses[band+1]; |
---|
| 538 | cost += costBOClasses[band+2]; |
---|
| 539 | cost += costBOClasses[band+3]; |
---|
| 540 | |
---|
| 541 | if(cost < minCost) |
---|
| 542 | { |
---|
| 543 | minCost = cost; |
---|
| 544 | typeAuxInfo = band; |
---|
| 545 | } |
---|
| 546 | } |
---|
| 547 | //clear those unused classes |
---|
| 548 | Int clearQuantOffset[NUM_SAO_BO_CLASSES]; |
---|
| 549 | ::memset(clearQuantOffset, 0, sizeof(Int)*NUM_SAO_BO_CLASSES); |
---|
[1029] | 550 | for(Int i=0; i< 4; i++) |
---|
[540] | 551 | { |
---|
| 552 | Int band = (typeAuxInfo+i)%NUM_SAO_BO_CLASSES; |
---|
| 553 | clearQuantOffset[band] = quantOffsets[band]; |
---|
| 554 | } |
---|
[1029] | 555 | ::memcpy(quantOffsets, clearQuantOffset, sizeof(Int)*NUM_SAO_BO_CLASSES); |
---|
[540] | 556 | } |
---|
| 557 | break; |
---|
| 558 | default: |
---|
| 559 | { |
---|
| 560 | printf("Not a supported type"); |
---|
| 561 | assert(0); |
---|
| 562 | exit(-1); |
---|
| 563 | } |
---|
| 564 | |
---|
| 565 | } |
---|
| 566 | |
---|
| 567 | |
---|
| 568 | } |
---|
| 569 | |
---|
[1287] | 570 | Void TEncSampleAdaptiveOffset::deriveModeNewRDO(const BitDepths &bitDepths, Int ctuRsAddr, SAOBlkParam* mergeList[NUM_SAO_MERGE_TYPES], Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel) |
---|
[540] | 571 | { |
---|
| 572 | Double minCost, cost; |
---|
[595] | 573 | UInt previousWrittenBits; |
---|
[1029] | 574 | const Int numberOfComponents = getNumberValidComponents(m_chromaFormatIDC); |
---|
| 575 | |
---|
| 576 | Int64 dist[MAX_NUM_COMPONENT], modeDist[MAX_NUM_COMPONENT]; |
---|
| 577 | SAOOffset testOffset[MAX_NUM_COMPONENT]; |
---|
[540] | 578 | Int invQuantOffset[MAX_NUM_SAO_CLASSES]; |
---|
[1029] | 579 | for(Int comp=0; comp < MAX_NUM_COMPONENT; comp++) |
---|
| 580 | { |
---|
| 581 | modeDist[comp] = 0; |
---|
| 582 | } |
---|
[540] | 583 | |
---|
| 584 | //pre-encode merge flags |
---|
[1029] | 585 | modeParam[COMPONENT_Y].modeIdc = SAO_MODE_OFF; |
---|
[540] | 586 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[inCabacLabel]); |
---|
[1287] | 587 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, bitDepths, sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), true); |
---|
[540] | 588 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
---|
| 589 | |
---|
[1029] | 590 | //------ luma --------// |
---|
| 591 | { |
---|
[1287] | 592 | const ComponentID compIdx = COMPONENT_Y; |
---|
[1029] | 593 | //"off" case as initial cost |
---|
| 594 | modeParam[compIdx].modeIdc = SAO_MODE_OFF; |
---|
| 595 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
[1287] | 596 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, modeParam[compIdx], sliceEnabled[compIdx], bitDepths.recon[CHANNEL_TYPE_LUMA]); |
---|
[1029] | 597 | modeDist[compIdx] = 0; |
---|
| 598 | minCost= m_lambda[compIdx]*((Double)m_pcRDGoOnSbacCoder->getNumberOfWrittenBits()); |
---|
| 599 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
| 600 | if(sliceEnabled[compIdx]) |
---|
[540] | 601 | { |
---|
[1029] | 602 | for(Int typeIdc=0; typeIdc< NUM_SAO_NEW_TYPES; typeIdc++) |
---|
| 603 | { |
---|
| 604 | testOffset[compIdx].modeIdc = SAO_MODE_NEW; |
---|
| 605 | testOffset[compIdx].typeIdc = typeIdc; |
---|
[540] | 606 | |
---|
[1029] | 607 | //derive coded offset |
---|
[1287] | 608 | deriveOffsets(compIdx, bitDepths.recon[CHANNEL_TYPE_LUMA], typeIdc, blkStats[ctuRsAddr][compIdx][typeIdc], testOffset[compIdx].offset, testOffset[compIdx].typeAuxInfo); |
---|
[540] | 609 | |
---|
[1029] | 610 | //inversed quantized offsets |
---|
| 611 | invertQuantOffsets(compIdx, typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, testOffset[compIdx].offset); |
---|
[540] | 612 | |
---|
[1029] | 613 | //get distortion |
---|
[1287] | 614 | dist[compIdx] = getDistortion(bitDepths.recon[CHANNEL_TYPE_LUMA], testOffset[compIdx].typeIdc, testOffset[compIdx].typeAuxInfo, invQuantOffset, blkStats[ctuRsAddr][compIdx][typeIdc]); |
---|
[540] | 615 | |
---|
[1029] | 616 | //get rate |
---|
| 617 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
---|
| 618 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
[1287] | 619 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(compIdx, testOffset[compIdx], sliceEnabled[compIdx], bitDepths.recon[CHANNEL_TYPE_LUMA]); |
---|
[1029] | 620 | Int rate = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
| 621 | cost = (Double)dist[compIdx] + m_lambda[compIdx]*((Double)rate); |
---|
| 622 | if(cost < minCost) |
---|
| 623 | { |
---|
| 624 | minCost = cost; |
---|
| 625 | modeDist[compIdx] = dist[compIdx]; |
---|
| 626 | modeParam[compIdx]= testOffset[compIdx]; |
---|
| 627 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
| 628 | } |
---|
[540] | 629 | } |
---|
| 630 | } |
---|
[1029] | 631 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
| 632 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
---|
[540] | 633 | } |
---|
| 634 | |
---|
| 635 | //------ chroma --------// |
---|
[1029] | 636 | //"off" case as initial cost |
---|
[595] | 637 | cost = 0; |
---|
| 638 | previousWrittenBits = 0; |
---|
[540] | 639 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
[1029] | 640 | for(UInt componentIndex = COMPONENT_Cb; componentIndex < numberOfComponents; componentIndex++) |
---|
[595] | 641 | { |
---|
[1029] | 642 | const ComponentID component = ComponentID(componentIndex); |
---|
[540] | 643 | |
---|
[1029] | 644 | modeParam[component].modeIdc = SAO_MODE_OFF; |
---|
| 645 | modeDist [component] = 0; |
---|
[1287] | 646 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(component, modeParam[component], sliceEnabled[component], bitDepths.recon[CHANNEL_TYPE_CHROMA]); |
---|
| 647 | |
---|
[595] | 648 | const UInt currentWrittenBits = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
| 649 | cost += m_lambda[component] * (currentWrittenBits - previousWrittenBits); |
---|
| 650 | previousWrittenBits = currentWrittenBits; |
---|
| 651 | } |
---|
| 652 | |
---|
| 653 | minCost = cost; |
---|
| 654 | |
---|
[540] | 655 | //doesn't need to store cabac status here since the whole CTU parameters will be re-encoded at the end of this function |
---|
| 656 | |
---|
| 657 | for(Int typeIdc=0; typeIdc< NUM_SAO_NEW_TYPES; typeIdc++) |
---|
| 658 | { |
---|
[595] | 659 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_MID]); |
---|
| 660 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
| 661 | previousWrittenBits = 0; |
---|
| 662 | cost = 0; |
---|
| 663 | |
---|
[1029] | 664 | for(UInt componentIndex = COMPONENT_Cb; componentIndex < numberOfComponents; componentIndex++) |
---|
[540] | 665 | { |
---|
[1029] | 666 | const ComponentID component = ComponentID(componentIndex); |
---|
| 667 | if(!sliceEnabled[component]) |
---|
[540] | 668 | { |
---|
[1029] | 669 | testOffset[component].modeIdc = SAO_MODE_OFF; |
---|
| 670 | dist[component]= 0; |
---|
[540] | 671 | continue; |
---|
| 672 | } |
---|
[1029] | 673 | testOffset[component].modeIdc = SAO_MODE_NEW; |
---|
| 674 | testOffset[component].typeIdc = typeIdc; |
---|
[540] | 675 | |
---|
| 676 | //derive offset & get distortion |
---|
[1287] | 677 | deriveOffsets(component, bitDepths.recon[CHANNEL_TYPE_CHROMA], typeIdc, blkStats[ctuRsAddr][component][typeIdc], testOffset[component].offset, testOffset[component].typeAuxInfo); |
---|
[1029] | 678 | invertQuantOffsets(component, typeIdc, testOffset[component].typeAuxInfo, invQuantOffset, testOffset[component].offset); |
---|
[1287] | 679 | dist[component] = getDistortion(bitDepths.recon[CHANNEL_TYPE_CHROMA], typeIdc, testOffset[component].typeAuxInfo, invQuantOffset, blkStats[ctuRsAddr][component][typeIdc]); |
---|
[595] | 680 | |
---|
[1287] | 681 | m_pcRDGoOnSbacCoder->codeSAOOffsetParam(component, testOffset[component], sliceEnabled[component], bitDepths.recon[CHANNEL_TYPE_CHROMA]); |
---|
[595] | 682 | |
---|
| 683 | const UInt currentWrittenBits = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
[1029] | 684 | cost += dist[component] + (m_lambda[component] * (currentWrittenBits - previousWrittenBits)); |
---|
[595] | 685 | previousWrittenBits = currentWrittenBits; |
---|
[540] | 686 | } |
---|
| 687 | |
---|
| 688 | if(cost < minCost) |
---|
| 689 | { |
---|
| 690 | minCost = cost; |
---|
[1029] | 691 | for(UInt componentIndex = COMPONENT_Cb; componentIndex < numberOfComponents; componentIndex++) |
---|
[595] | 692 | { |
---|
[1029] | 693 | modeDist[componentIndex] = dist[componentIndex]; |
---|
| 694 | modeParam[componentIndex] = testOffset[componentIndex]; |
---|
[595] | 695 | } |
---|
[540] | 696 | } |
---|
| 697 | |
---|
[1029] | 698 | } // SAO_TYPE loop |
---|
[540] | 699 | |
---|
| 700 | //----- re-gen rate & normalized cost----// |
---|
[595] | 701 | modeNormCost = 0; |
---|
[1029] | 702 | for(UInt componentIndex = COMPONENT_Y; componentIndex < numberOfComponents; componentIndex++) |
---|
[595] | 703 | { |
---|
[1029] | 704 | modeNormCost += (Double)modeDist[componentIndex] / m_lambda[componentIndex]; |
---|
[595] | 705 | } |
---|
[1029] | 706 | |
---|
[540] | 707 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[inCabacLabel]); |
---|
| 708 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
[1287] | 709 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(modeParam, bitDepths, sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
---|
[540] | 710 | modeNormCost += (Double)m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
| 711 | } |
---|
| 712 | |
---|
[1287] | 713 | Void TEncSampleAdaptiveOffset::deriveModeMergeRDO(const BitDepths &bitDepths, Int ctuRsAddr, SAOBlkParam* mergeList[NUM_SAO_MERGE_TYPES], Bool* sliceEnabled, SAOStatData*** blkStats, SAOBlkParam& modeParam, Double& modeNormCost, TEncSbac** cabacCoderRDO, Int inCabacLabel) |
---|
[540] | 714 | { |
---|
| 715 | modeNormCost = MAX_DOUBLE; |
---|
| 716 | |
---|
| 717 | Double cost; |
---|
| 718 | SAOBlkParam testBlkParam; |
---|
[1029] | 719 | const Int numberOfComponents = getNumberValidComponents(m_chromaFormatIDC); |
---|
[540] | 720 | |
---|
[1029] | 721 | for(Int mergeType=0; mergeType< NUM_SAO_MERGE_TYPES; mergeType++) |
---|
[540] | 722 | { |
---|
| 723 | if(mergeList[mergeType] == NULL) |
---|
| 724 | { |
---|
| 725 | continue; |
---|
| 726 | } |
---|
| 727 | |
---|
| 728 | testBlkParam = *(mergeList[mergeType]); |
---|
| 729 | //normalized distortion |
---|
| 730 | Double normDist=0; |
---|
[1029] | 731 | for(Int compIdx = 0; compIdx < numberOfComponents; compIdx++) |
---|
[540] | 732 | { |
---|
| 733 | testBlkParam[compIdx].modeIdc = SAO_MODE_MERGE; |
---|
| 734 | testBlkParam[compIdx].typeIdc = mergeType; |
---|
| 735 | |
---|
| 736 | SAOOffset& mergedOffsetParam = (*(mergeList[mergeType]))[compIdx]; |
---|
| 737 | |
---|
| 738 | if( mergedOffsetParam.modeIdc != SAO_MODE_OFF) |
---|
| 739 | { |
---|
| 740 | //offsets have been reconstructed. Don't call inversed quantization function. |
---|
[1287] | 741 | normDist += (((Double)getDistortion(bitDepths.recon[toChannelType(ComponentID(compIdx))], mergedOffsetParam.typeIdc, mergedOffsetParam.typeAuxInfo, mergedOffsetParam.offset, blkStats[ctuRsAddr][compIdx][mergedOffsetParam.typeIdc])) |
---|
[595] | 742 | /m_lambda[compIdx] |
---|
[540] | 743 | ); |
---|
| 744 | } |
---|
| 745 | |
---|
| 746 | } |
---|
| 747 | |
---|
| 748 | //rate |
---|
| 749 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[inCabacLabel]); |
---|
| 750 | m_pcRDGoOnSbacCoder->resetBits(); |
---|
[1287] | 751 | m_pcRDGoOnSbacCoder->codeSAOBlkParam(testBlkParam, bitDepths, sliceEnabled, (mergeList[SAO_MERGE_LEFT]!= NULL), (mergeList[SAO_MERGE_ABOVE]!= NULL), false); |
---|
[540] | 752 | Int rate = m_pcRDGoOnSbacCoder->getNumberOfWrittenBits(); |
---|
| 753 | |
---|
| 754 | cost = normDist+(Double)rate; |
---|
| 755 | |
---|
| 756 | if(cost < modeNormCost) |
---|
| 757 | { |
---|
| 758 | modeNormCost = cost; |
---|
| 759 | modeParam = testBlkParam; |
---|
| 760 | m_pcRDGoOnSbacCoder->store(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
| 761 | } |
---|
| 762 | } |
---|
| 763 | |
---|
| 764 | m_pcRDGoOnSbacCoder->load(cabacCoderRDO[SAO_CABACSTATE_BLK_TEMP]); |
---|
| 765 | } |
---|
| 766 | |
---|
[1332] | 767 | Void TEncSampleAdaptiveOffset::decideBlkParams(TComPic* pic, Bool* sliceEnabled, SAOStatData*** blkStats, TComPicYuv* srcYuv, TComPicYuv* resYuv, |
---|
| 768 | SAOBlkParam* reconParams, SAOBlkParam* codedParams, const Bool bTestSAODisableAtPictureLevel, |
---|
| 769 | const Double saoEncodingRate, const Double saoEncodingRateChroma) |
---|
[540] | 770 | { |
---|
[1029] | 771 | Bool allBlksDisabled = true; |
---|
| 772 | const Int numberOfComponents = getNumberValidComponents(m_chromaFormatIDC); |
---|
| 773 | for(Int compId = COMPONENT_Y; compId < numberOfComponents; compId++) |
---|
[540] | 774 | { |
---|
[1029] | 775 | if (sliceEnabled[compId]) |
---|
[1246] | 776 | { |
---|
[1029] | 777 | allBlksDisabled = false; |
---|
[1246] | 778 | } |
---|
[540] | 779 | } |
---|
| 780 | |
---|
| 781 | m_pcRDGoOnSbacCoder->load(m_pppcRDSbacCoder[ SAO_CABACSTATE_PIC_INIT ]); |
---|
| 782 | |
---|
| 783 | SAOBlkParam modeParam; |
---|
| 784 | Double minCost, modeCost; |
---|
| 785 | |
---|
[1029] | 786 | |
---|
[1331] | 787 | Double totalCost = 0; // Used if bTestSAODisableAtPictureLevel==true |
---|
[1029] | 788 | |
---|
| 789 | for(Int ctuRsAddr=0; ctuRsAddr< m_numCTUsPic; ctuRsAddr++) |
---|
[540] | 790 | { |
---|
[1029] | 791 | if(allBlksDisabled) |
---|
[540] | 792 | { |
---|
[1029] | 793 | codedParams[ctuRsAddr].reset(); |
---|
[540] | 794 | continue; |
---|
| 795 | } |
---|
| 796 | |
---|
| 797 | m_pcRDGoOnSbacCoder->store(m_pppcRDSbacCoder[ SAO_CABACSTATE_BLK_CUR ]); |
---|
| 798 | |
---|
| 799 | //get merge list |
---|
[1029] | 800 | SAOBlkParam* mergeList[NUM_SAO_MERGE_TYPES] = { NULL }; |
---|
| 801 | getMergeList(pic, ctuRsAddr, reconParams, mergeList); |
---|
[540] | 802 | |
---|
| 803 | minCost = MAX_DOUBLE; |
---|
| 804 | for(Int mode=0; mode < NUM_SAO_MODES; mode++) |
---|
| 805 | { |
---|
| 806 | switch(mode) |
---|
| 807 | { |
---|
| 808 | case SAO_MODE_OFF: |
---|
| 809 | { |
---|
| 810 | continue; //not necessary, since all-off case will be tested in SAO_MODE_NEW case. |
---|
| 811 | } |
---|
| 812 | break; |
---|
| 813 | case SAO_MODE_NEW: |
---|
| 814 | { |
---|
[1287] | 815 | #if SVC_EXTENSION |
---|
| 816 | deriveModeNewRDO(pic->getSlice(0)->getBitDepths(), ctuRsAddr, mergeList, sliceEnabled, blkStats, modeParam, modeCost, m_pppcRDSbacCoder, SAO_CABACSTATE_BLK_CUR); |
---|
| 817 | #else |
---|
| 818 | deriveModeNewRDO(pic->getPicSym()->getSPS().getBitDepths(), ctuRsAddr, mergeList, sliceEnabled, blkStats, modeParam, modeCost, m_pppcRDSbacCoder, SAO_CABACSTATE_BLK_CUR); |
---|
| 819 | #endif |
---|
[540] | 820 | |
---|
| 821 | } |
---|
| 822 | break; |
---|
| 823 | case SAO_MODE_MERGE: |
---|
| 824 | { |
---|
[1287] | 825 | #if SVC_EXTENSION |
---|
| 826 | deriveModeMergeRDO(pic->getSlice(0)->getBitDepths(), ctuRsAddr, mergeList, sliceEnabled, blkStats , modeParam, modeCost, m_pppcRDSbacCoder, SAO_CABACSTATE_BLK_CUR); |
---|
| 827 | #else |
---|
| 828 | deriveModeMergeRDO(pic->getPicSym()->getSPS().getBitDepths(), ctuRsAddr, mergeList, sliceEnabled, blkStats , modeParam, modeCost, m_pppcRDSbacCoder, SAO_CABACSTATE_BLK_CUR); |
---|
| 829 | #endif |
---|
[540] | 830 | } |
---|
| 831 | break; |
---|
| 832 | default: |
---|
| 833 | { |
---|
| 834 | printf("Not a supported SAO mode\n"); |
---|
| 835 | assert(0); |
---|
| 836 | exit(-1); |
---|
| 837 | } |
---|
| 838 | } |
---|
| 839 | |
---|
| 840 | if(modeCost < minCost) |
---|
| 841 | { |
---|
| 842 | minCost = modeCost; |
---|
[1029] | 843 | codedParams[ctuRsAddr] = modeParam; |
---|
[540] | 844 | m_pcRDGoOnSbacCoder->store(m_pppcRDSbacCoder[ SAO_CABACSTATE_BLK_NEXT ]); |
---|
| 845 | } |
---|
| 846 | } //mode |
---|
[1029] | 847 | |
---|
| 848 | totalCost += minCost; |
---|
| 849 | |
---|
[540] | 850 | m_pcRDGoOnSbacCoder->load(m_pppcRDSbacCoder[ SAO_CABACSTATE_BLK_NEXT ]); |
---|
| 851 | |
---|
| 852 | //apply reconstructed offsets |
---|
[1029] | 853 | reconParams[ctuRsAddr] = codedParams[ctuRsAddr]; |
---|
| 854 | reconstructBlkSAOParam(reconParams[ctuRsAddr], mergeList); |
---|
| 855 | offsetCTU(ctuRsAddr, srcYuv, resYuv, reconParams[ctuRsAddr], pic); |
---|
| 856 | } //ctuRsAddr |
---|
[540] | 857 | |
---|
[1331] | 858 | if (!allBlksDisabled && (totalCost >= 0) && bTestSAODisableAtPictureLevel) //SAO has not beneficial in this case - disable it |
---|
[1029] | 859 | { |
---|
| 860 | for(Int ctuRsAddr = 0; ctuRsAddr < m_numCTUsPic; ctuRsAddr++) |
---|
| 861 | { |
---|
| 862 | codedParams[ctuRsAddr].reset(); |
---|
| 863 | } |
---|
| 864 | |
---|
| 865 | for (UInt componentIndex = 0; componentIndex < MAX_NUM_COMPONENT; componentIndex++) |
---|
| 866 | { |
---|
| 867 | sliceEnabled[componentIndex] = false; |
---|
| 868 | } |
---|
| 869 | |
---|
| 870 | m_pcRDGoOnSbacCoder->load(m_pppcRDSbacCoder[ SAO_CABACSTATE_PIC_INIT ]); |
---|
| 871 | } |
---|
| 872 | |
---|
[1332] | 873 | if (saoEncodingRate > 0.0) |
---|
| 874 | { |
---|
| 875 | Int picTempLayer = pic->getSlice(0)->getDepth(); |
---|
| 876 | Int numCtusForSAOOff[MAX_NUM_COMPONENT]; |
---|
[540] | 877 | |
---|
[1332] | 878 | for (Int compIdx = 0; compIdx < numberOfComponents; compIdx++) |
---|
[540] | 879 | { |
---|
[1332] | 880 | numCtusForSAOOff[compIdx] = 0; |
---|
| 881 | for(Int ctuRsAddr=0; ctuRsAddr< m_numCTUsPic; ctuRsAddr++) |
---|
[540] | 882 | { |
---|
[1332] | 883 | if( reconParams[ctuRsAddr][compIdx].modeIdc == SAO_MODE_OFF) |
---|
| 884 | { |
---|
| 885 | numCtusForSAOOff[compIdx]++; |
---|
| 886 | } |
---|
[540] | 887 | } |
---|
| 888 | } |
---|
[1332] | 889 | if (saoEncodingRateChroma > 0.0) |
---|
| 890 | { |
---|
| 891 | for (Int compIdx = 0; compIdx < numberOfComponents; compIdx++) |
---|
| 892 | { |
---|
| 893 | m_saoDisabledRate[compIdx][picTempLayer] = (Double)numCtusForSAOOff[compIdx]/(Double)m_numCTUsPic; |
---|
| 894 | } |
---|
| 895 | } |
---|
| 896 | else if (picTempLayer == 0) |
---|
| 897 | { |
---|
| 898 | m_saoDisabledRate[COMPONENT_Y][0] = (Double)(numCtusForSAOOff[COMPONENT_Y]+numCtusForSAOOff[COMPONENT_Cb]+numCtusForSAOOff[COMPONENT_Cr])/(Double)(m_numCTUsPic*3); |
---|
| 899 | } |
---|
[540] | 900 | } |
---|
| 901 | } |
---|
| 902 | |
---|
| 903 | |
---|
[1287] | 904 | Void TEncSampleAdaptiveOffset::getBlkStats(const ComponentID compIdx, const Int channelBitDepth, SAOStatData* statsDataTypes |
---|
[540] | 905 | , Pel* srcBlk, Pel* orgBlk, Int srcStride, Int orgStride, Int width, Int height |
---|
[1307] | 906 | , Bool isLeftAvail, Bool isRightAvail, Bool isAboveAvail, Bool isBelowAvail, Bool isAboveLeftAvail, Bool isAboveRightAvail |
---|
[540] | 907 | , Bool isCalculatePreDeblockSamples |
---|
| 908 | ) |
---|
| 909 | { |
---|
| 910 | if(m_lineBufWidth != m_maxCUWidth) |
---|
| 911 | { |
---|
| 912 | m_lineBufWidth = m_maxCUWidth; |
---|
| 913 | |
---|
[1246] | 914 | if (m_signLineBuf1) |
---|
| 915 | { |
---|
| 916 | delete[] m_signLineBuf1; |
---|
| 917 | m_signLineBuf1 = NULL; |
---|
| 918 | } |
---|
[1029] | 919 | m_signLineBuf1 = new Char[m_lineBufWidth+1]; |
---|
[540] | 920 | |
---|
[1246] | 921 | if (m_signLineBuf2) |
---|
| 922 | { |
---|
| 923 | delete[] m_signLineBuf2; |
---|
| 924 | m_signLineBuf2 = NULL; |
---|
| 925 | } |
---|
[540] | 926 | m_signLineBuf2 = new Char[m_lineBufWidth+1]; |
---|
| 927 | } |
---|
| 928 | |
---|
| 929 | Int x,y, startX, startY, endX, endY, edgeType, firstLineStartX, firstLineEndX; |
---|
| 930 | Char signLeft, signRight, signDown; |
---|
| 931 | Int64 *diff, *count; |
---|
| 932 | Pel *srcLine, *orgLine; |
---|
| 933 | Int* skipLinesR = m_skipLinesR[compIdx]; |
---|
| 934 | Int* skipLinesB = m_skipLinesB[compIdx]; |
---|
| 935 | |
---|
| 936 | for(Int typeIdx=0; typeIdx< NUM_SAO_NEW_TYPES; typeIdx++) |
---|
| 937 | { |
---|
| 938 | SAOStatData& statsData= statsDataTypes[typeIdx]; |
---|
| 939 | statsData.reset(); |
---|
| 940 | |
---|
| 941 | srcLine = srcBlk; |
---|
| 942 | orgLine = orgBlk; |
---|
| 943 | diff = statsData.diff; |
---|
| 944 | count = statsData.count; |
---|
| 945 | switch(typeIdx) |
---|
| 946 | { |
---|
| 947 | case SAO_TYPE_EO_0: |
---|
| 948 | { |
---|
| 949 | diff +=2; |
---|
| 950 | count+=2; |
---|
| 951 | endY = (isBelowAvail) ? (height - skipLinesB[typeIdx]) : height; |
---|
| 952 | startX = (!isCalculatePreDeblockSamples) ? (isLeftAvail ? 0 : 1) |
---|
| 953 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
| 954 | ; |
---|
| 955 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
| 956 | : (isRightAvail ? width : (width - 1)) |
---|
| 957 | ; |
---|
| 958 | for (y=0; y<endY; y++) |
---|
| 959 | { |
---|
[713] | 960 | signLeft = (Char)sgn(srcLine[startX] - srcLine[startX-1]); |
---|
[540] | 961 | for (x=startX; x<endX; x++) |
---|
| 962 | { |
---|
[713] | 963 | signRight = (Char)sgn(srcLine[x] - srcLine[x+1]); |
---|
[540] | 964 | edgeType = signRight + signLeft; |
---|
| 965 | signLeft = -signRight; |
---|
| 966 | |
---|
| 967 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 968 | count[edgeType] ++; |
---|
| 969 | } |
---|
| 970 | srcLine += srcStride; |
---|
| 971 | orgLine += orgStride; |
---|
| 972 | } |
---|
| 973 | if(isCalculatePreDeblockSamples) |
---|
| 974 | { |
---|
| 975 | if(isBelowAvail) |
---|
| 976 | { |
---|
| 977 | startX = isLeftAvail ? 0 : 1; |
---|
| 978 | endX = isRightAvail ? width : (width -1); |
---|
| 979 | |
---|
| 980 | for(y=0; y<skipLinesB[typeIdx]; y++) |
---|
| 981 | { |
---|
[713] | 982 | signLeft = (Char)sgn(srcLine[startX] - srcLine[startX-1]); |
---|
[540] | 983 | for (x=startX; x<endX; x++) |
---|
| 984 | { |
---|
[713] | 985 | signRight = (Char)sgn(srcLine[x] - srcLine[x+1]); |
---|
[540] | 986 | edgeType = signRight + signLeft; |
---|
| 987 | signLeft = -signRight; |
---|
| 988 | |
---|
| 989 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 990 | count[edgeType] ++; |
---|
| 991 | } |
---|
| 992 | srcLine += srcStride; |
---|
| 993 | orgLine += orgStride; |
---|
| 994 | } |
---|
| 995 | } |
---|
| 996 | } |
---|
| 997 | } |
---|
| 998 | break; |
---|
| 999 | case SAO_TYPE_EO_90: |
---|
| 1000 | { |
---|
| 1001 | diff +=2; |
---|
| 1002 | count+=2; |
---|
| 1003 | Char *signUpLine = m_signLineBuf1; |
---|
| 1004 | |
---|
| 1005 | startX = (!isCalculatePreDeblockSamples) ? 0 |
---|
| 1006 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : width) |
---|
| 1007 | ; |
---|
| 1008 | startY = isAboveAvail ? 0 : 1; |
---|
[1029] | 1009 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]) : width) |
---|
[540] | 1010 | : width |
---|
| 1011 | ; |
---|
| 1012 | endY = isBelowAvail ? (height - skipLinesB[typeIdx]) : (height - 1); |
---|
| 1013 | if (!isAboveAvail) |
---|
| 1014 | { |
---|
| 1015 | srcLine += srcStride; |
---|
| 1016 | orgLine += orgStride; |
---|
| 1017 | } |
---|
| 1018 | |
---|
| 1019 | Pel* srcLineAbove = srcLine - srcStride; |
---|
[1029] | 1020 | for (x=startX; x<endX; x++) |
---|
[540] | 1021 | { |
---|
[713] | 1022 | signUpLine[x] = (Char)sgn(srcLine[x] - srcLineAbove[x]); |
---|
[540] | 1023 | } |
---|
| 1024 | |
---|
| 1025 | Pel* srcLineBelow; |
---|
| 1026 | for (y=startY; y<endY; y++) |
---|
| 1027 | { |
---|
| 1028 | srcLineBelow = srcLine + srcStride; |
---|
| 1029 | |
---|
| 1030 | for (x=startX; x<endX; x++) |
---|
| 1031 | { |
---|
[713] | 1032 | signDown = (Char)sgn(srcLine[x] - srcLineBelow[x]); |
---|
[540] | 1033 | edgeType = signDown + signUpLine[x]; |
---|
| 1034 | signUpLine[x]= -signDown; |
---|
| 1035 | |
---|
| 1036 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 1037 | count[edgeType] ++; |
---|
| 1038 | } |
---|
| 1039 | srcLine += srcStride; |
---|
| 1040 | orgLine += orgStride; |
---|
| 1041 | } |
---|
| 1042 | if(isCalculatePreDeblockSamples) |
---|
| 1043 | { |
---|
| 1044 | if(isBelowAvail) |
---|
| 1045 | { |
---|
| 1046 | startX = 0; |
---|
| 1047 | endX = width; |
---|
| 1048 | |
---|
| 1049 | for(y=0; y<skipLinesB[typeIdx]; y++) |
---|
| 1050 | { |
---|
| 1051 | srcLineBelow = srcLine + srcStride; |
---|
| 1052 | srcLineAbove = srcLine - srcStride; |
---|
| 1053 | |
---|
| 1054 | for (x=startX; x<endX; x++) |
---|
| 1055 | { |
---|
[713] | 1056 | edgeType = sgn(srcLine[x] - srcLineBelow[x]) + sgn(srcLine[x] - srcLineAbove[x]); |
---|
[540] | 1057 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 1058 | count[edgeType] ++; |
---|
| 1059 | } |
---|
| 1060 | srcLine += srcStride; |
---|
| 1061 | orgLine += orgStride; |
---|
| 1062 | } |
---|
| 1063 | } |
---|
| 1064 | } |
---|
| 1065 | |
---|
| 1066 | } |
---|
| 1067 | break; |
---|
| 1068 | case SAO_TYPE_EO_135: |
---|
| 1069 | { |
---|
| 1070 | diff +=2; |
---|
| 1071 | count+=2; |
---|
| 1072 | Char *signUpLine, *signDownLine, *signTmpLine; |
---|
| 1073 | |
---|
| 1074 | signUpLine = m_signLineBuf1; |
---|
| 1075 | signDownLine= m_signLineBuf2; |
---|
| 1076 | |
---|
| 1077 | startX = (!isCalculatePreDeblockSamples) ? (isLeftAvail ? 0 : 1) |
---|
| 1078 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
| 1079 | ; |
---|
| 1080 | |
---|
| 1081 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]): (width - 1)) |
---|
| 1082 | : (isRightAvail ? width : (width - 1)) |
---|
| 1083 | ; |
---|
| 1084 | endY = isBelowAvail ? (height - skipLinesB[typeIdx]) : (height - 1); |
---|
| 1085 | |
---|
| 1086 | //prepare 2nd line's upper sign |
---|
| 1087 | Pel* srcLineBelow = srcLine + srcStride; |
---|
| 1088 | for (x=startX; x<endX+1; x++) |
---|
| 1089 | { |
---|
[713] | 1090 | signUpLine[x] = (Char)sgn(srcLineBelow[x] - srcLine[x-1]); |
---|
[540] | 1091 | } |
---|
| 1092 | |
---|
| 1093 | //1st line |
---|
| 1094 | Pel* srcLineAbove = srcLine - srcStride; |
---|
| 1095 | firstLineStartX = (!isCalculatePreDeblockSamples) ? (isAboveLeftAvail ? 0 : 1) : startX; |
---|
| 1096 | firstLineEndX = (!isCalculatePreDeblockSamples) ? (isAboveAvail ? endX : 1) : endX; |
---|
| 1097 | for(x=firstLineStartX; x<firstLineEndX; x++) |
---|
| 1098 | { |
---|
[713] | 1099 | edgeType = sgn(srcLine[x] - srcLineAbove[x-1]) - signUpLine[x+1]; |
---|
[540] | 1100 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 1101 | count[edgeType] ++; |
---|
| 1102 | } |
---|
| 1103 | srcLine += srcStride; |
---|
| 1104 | orgLine += orgStride; |
---|
| 1105 | |
---|
| 1106 | |
---|
| 1107 | //middle lines |
---|
| 1108 | for (y=1; y<endY; y++) |
---|
| 1109 | { |
---|
| 1110 | srcLineBelow = srcLine + srcStride; |
---|
| 1111 | |
---|
| 1112 | for (x=startX; x<endX; x++) |
---|
| 1113 | { |
---|
[713] | 1114 | signDown = (Char)sgn(srcLine[x] - srcLineBelow[x+1]); |
---|
[540] | 1115 | edgeType = signDown + signUpLine[x]; |
---|
| 1116 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 1117 | count[edgeType] ++; |
---|
| 1118 | |
---|
[1029] | 1119 | signDownLine[x+1] = -signDown; |
---|
[540] | 1120 | } |
---|
[713] | 1121 | signDownLine[startX] = (Char)sgn(srcLineBelow[startX] - srcLine[startX-1]); |
---|
[540] | 1122 | |
---|
| 1123 | signTmpLine = signUpLine; |
---|
| 1124 | signUpLine = signDownLine; |
---|
| 1125 | signDownLine = signTmpLine; |
---|
| 1126 | |
---|
| 1127 | srcLine += srcStride; |
---|
| 1128 | orgLine += orgStride; |
---|
| 1129 | } |
---|
| 1130 | if(isCalculatePreDeblockSamples) |
---|
| 1131 | { |
---|
| 1132 | if(isBelowAvail) |
---|
| 1133 | { |
---|
| 1134 | startX = isLeftAvail ? 0 : 1 ; |
---|
| 1135 | endX = isRightAvail ? width : (width -1); |
---|
| 1136 | |
---|
| 1137 | for(y=0; y<skipLinesB[typeIdx]; y++) |
---|
| 1138 | { |
---|
| 1139 | srcLineBelow = srcLine + srcStride; |
---|
| 1140 | srcLineAbove = srcLine - srcStride; |
---|
| 1141 | |
---|
| 1142 | for (x=startX; x< endX; x++) |
---|
| 1143 | { |
---|
[713] | 1144 | edgeType = sgn(srcLine[x] - srcLineBelow[x+1]) + sgn(srcLine[x] - srcLineAbove[x-1]); |
---|
[540] | 1145 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 1146 | count[edgeType] ++; |
---|
| 1147 | } |
---|
| 1148 | srcLine += srcStride; |
---|
| 1149 | orgLine += orgStride; |
---|
| 1150 | } |
---|
| 1151 | } |
---|
| 1152 | } |
---|
| 1153 | } |
---|
| 1154 | break; |
---|
| 1155 | case SAO_TYPE_EO_45: |
---|
| 1156 | { |
---|
| 1157 | diff +=2; |
---|
| 1158 | count+=2; |
---|
| 1159 | Char *signUpLine = m_signLineBuf1+1; |
---|
| 1160 | |
---|
| 1161 | startX = (!isCalculatePreDeblockSamples) ? (isLeftAvail ? 0 : 1) |
---|
| 1162 | : (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
| 1163 | ; |
---|
| 1164 | endX = (!isCalculatePreDeblockSamples) ? (isRightAvail ? (width - skipLinesR[typeIdx]) : (width - 1)) |
---|
| 1165 | : (isRightAvail ? width : (width - 1)) |
---|
| 1166 | ; |
---|
| 1167 | endY = isBelowAvail ? (height - skipLinesB[typeIdx]) : (height - 1); |
---|
| 1168 | |
---|
| 1169 | //prepare 2nd line upper sign |
---|
| 1170 | Pel* srcLineBelow = srcLine + srcStride; |
---|
| 1171 | for (x=startX-1; x<endX; x++) |
---|
| 1172 | { |
---|
[713] | 1173 | signUpLine[x] = (Char)sgn(srcLineBelow[x] - srcLine[x+1]); |
---|
[540] | 1174 | } |
---|
| 1175 | |
---|
| 1176 | |
---|
| 1177 | //first line |
---|
| 1178 | Pel* srcLineAbove = srcLine - srcStride; |
---|
| 1179 | firstLineStartX = (!isCalculatePreDeblockSamples) ? (isAboveAvail ? startX : endX) |
---|
| 1180 | : startX |
---|
| 1181 | ; |
---|
| 1182 | firstLineEndX = (!isCalculatePreDeblockSamples) ? ((!isRightAvail && isAboveRightAvail) ? width : endX) |
---|
| 1183 | : endX |
---|
| 1184 | ; |
---|
| 1185 | for(x=firstLineStartX; x<firstLineEndX; x++) |
---|
| 1186 | { |
---|
[713] | 1187 | edgeType = sgn(srcLine[x] - srcLineAbove[x+1]) - signUpLine[x-1]; |
---|
[540] | 1188 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 1189 | count[edgeType] ++; |
---|
| 1190 | } |
---|
| 1191 | |
---|
| 1192 | srcLine += srcStride; |
---|
| 1193 | orgLine += orgStride; |
---|
| 1194 | |
---|
| 1195 | //middle lines |
---|
| 1196 | for (y=1; y<endY; y++) |
---|
| 1197 | { |
---|
| 1198 | srcLineBelow = srcLine + srcStride; |
---|
| 1199 | |
---|
| 1200 | for(x=startX; x<endX; x++) |
---|
| 1201 | { |
---|
[713] | 1202 | signDown = (Char)sgn(srcLine[x] - srcLineBelow[x-1]); |
---|
[540] | 1203 | edgeType = signDown + signUpLine[x]; |
---|
| 1204 | |
---|
| 1205 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 1206 | count[edgeType] ++; |
---|
| 1207 | |
---|
[1029] | 1208 | signUpLine[x-1] = -signDown; |
---|
[540] | 1209 | } |
---|
[713] | 1210 | signUpLine[endX-1] = (Char)sgn(srcLineBelow[endX-1] - srcLine[endX]); |
---|
[540] | 1211 | srcLine += srcStride; |
---|
| 1212 | orgLine += orgStride; |
---|
| 1213 | } |
---|
| 1214 | if(isCalculatePreDeblockSamples) |
---|
| 1215 | { |
---|
| 1216 | if(isBelowAvail) |
---|
| 1217 | { |
---|
| 1218 | startX = isLeftAvail ? 0 : 1 ; |
---|
| 1219 | endX = isRightAvail ? width : (width -1); |
---|
| 1220 | |
---|
| 1221 | for(y=0; y<skipLinesB[typeIdx]; y++) |
---|
| 1222 | { |
---|
| 1223 | srcLineBelow = srcLine + srcStride; |
---|
| 1224 | srcLineAbove = srcLine - srcStride; |
---|
| 1225 | |
---|
| 1226 | for (x=startX; x<endX; x++) |
---|
| 1227 | { |
---|
[713] | 1228 | edgeType = sgn(srcLine[x] - srcLineBelow[x-1]) + sgn(srcLine[x] - srcLineAbove[x+1]); |
---|
[540] | 1229 | diff [edgeType] += (orgLine[x] - srcLine[x]); |
---|
| 1230 | count[edgeType] ++; |
---|
| 1231 | } |
---|
| 1232 | srcLine += srcStride; |
---|
| 1233 | orgLine += orgStride; |
---|
| 1234 | } |
---|
| 1235 | } |
---|
| 1236 | } |
---|
| 1237 | } |
---|
| 1238 | break; |
---|
| 1239 | case SAO_TYPE_BO: |
---|
| 1240 | { |
---|
| 1241 | startX = (!isCalculatePreDeblockSamples)?0 |
---|
| 1242 | :( isRightAvail?(width- skipLinesR[typeIdx]):width) |
---|
| 1243 | ; |
---|
| 1244 | endX = (!isCalculatePreDeblockSamples)?(isRightAvail ? (width - skipLinesR[typeIdx]) : width ) |
---|
| 1245 | :width |
---|
| 1246 | ; |
---|
| 1247 | endY = isBelowAvail ? (height- skipLinesB[typeIdx]) : height; |
---|
[1287] | 1248 | Int shiftBits = channelBitDepth - NUM_SAO_BO_CLASSES_LOG2; |
---|
[540] | 1249 | for (y=0; y< endY; y++) |
---|
| 1250 | { |
---|
| 1251 | for (x=startX; x< endX; x++) |
---|
| 1252 | { |
---|
| 1253 | |
---|
[1029] | 1254 | Int bandIdx= srcLine[x] >> shiftBits; |
---|
[540] | 1255 | diff [bandIdx] += (orgLine[x] - srcLine[x]); |
---|
| 1256 | count[bandIdx] ++; |
---|
| 1257 | } |
---|
| 1258 | srcLine += srcStride; |
---|
| 1259 | orgLine += orgStride; |
---|
| 1260 | } |
---|
| 1261 | if(isCalculatePreDeblockSamples) |
---|
| 1262 | { |
---|
| 1263 | if(isBelowAvail) |
---|
| 1264 | { |
---|
| 1265 | startX = 0; |
---|
| 1266 | endX = width; |
---|
| 1267 | |
---|
| 1268 | for(y= 0; y< skipLinesB[typeIdx]; y++) |
---|
| 1269 | { |
---|
| 1270 | for (x=startX; x< endX; x++) |
---|
| 1271 | { |
---|
[1029] | 1272 | Int bandIdx= srcLine[x] >> shiftBits; |
---|
[540] | 1273 | diff [bandIdx] += (orgLine[x] - srcLine[x]); |
---|
| 1274 | count[bandIdx] ++; |
---|
| 1275 | } |
---|
| 1276 | srcLine += srcStride; |
---|
| 1277 | orgLine += orgStride; |
---|
| 1278 | |
---|
| 1279 | } |
---|
| 1280 | |
---|
| 1281 | } |
---|
| 1282 | } |
---|
| 1283 | } |
---|
| 1284 | break; |
---|
| 1285 | default: |
---|
| 1286 | { |
---|
| 1287 | printf("Not a supported SAO types\n"); |
---|
| 1288 | assert(0); |
---|
| 1289 | exit(-1); |
---|
| 1290 | } |
---|
| 1291 | } |
---|
| 1292 | } |
---|
| 1293 | } |
---|
| 1294 | |
---|
[1029] | 1295 | |
---|
[313] | 1296 | //! \} |
---|