[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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| 4 | * granted under this license. |
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| 5 | * |
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| 6 | * Copyright (c) 2010-2013, ITU/ISO/IEC |
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| 7 | * All rights reserved. |
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| 8 | * |
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| 9 | * Redistribution and use in source and binary forms, with or without |
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| 10 | * modification, are permitted provided that the following conditions are met: |
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| 11 | * |
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| 12 | * * Redistributions of source code must retain the above copyright notice, |
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| 13 | * this list of conditions and the following disclaimer. |
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| 14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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| 15 | * this list of conditions and the following disclaimer in the documentation |
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| 16 | * and/or other materials provided with the distribution. |
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| 17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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| 18 | * be used to endorse or promote products derived from this software without |
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| 19 | * specific prior written permission. |
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| 20 | * |
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| 21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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| 22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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| 23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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| 24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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| 25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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| 26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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| 27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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| 28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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| 29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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| 30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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| 31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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| 32 | */ |
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| 33 | |
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| 34 | /** \file TComTrQuant.cpp |
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| 35 | \brief transform and quantization class |
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| 36 | */ |
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| 37 | |
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| 38 | #include <stdlib.h> |
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| 39 | #include <math.h> |
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| 40 | #include <memory.h> |
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| 41 | #include "TComTrQuant.h" |
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| 42 | #include "TComPic.h" |
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| 43 | #include "ContextTables.h" |
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| 44 | |
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| 45 | typedef struct |
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| 46 | { |
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| 47 | Int iNNZbeforePos0; |
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| 48 | Double d64CodedLevelandDist; // distortion and level cost only |
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| 49 | Double d64UncodedDist; // all zero coded block distortion |
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| 50 | Double d64SigCost; |
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| 51 | Double d64SigCost_0; |
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| 52 | } coeffGroupRDStats; |
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| 53 | |
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| 54 | //! \ingroup TLibCommon |
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| 55 | //! \{ |
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| 56 | |
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| 57 | // ==================================================================================================================== |
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| 58 | // Constants |
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| 59 | // ==================================================================================================================== |
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| 60 | |
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| 61 | #define RDOQ_CHROMA 1 ///< use of RDOQ in chroma |
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| 62 | |
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| 63 | // ==================================================================================================================== |
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| 64 | // Tables |
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| 65 | // ==================================================================================================================== |
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| 66 | |
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| 67 | // RDOQ parameter |
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| 68 | |
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| 69 | // ==================================================================================================================== |
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| 70 | // Qp class member functions |
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| 71 | // ==================================================================================================================== |
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| 72 | |
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| 73 | QpParam::QpParam() |
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| 74 | { |
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| 75 | } |
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| 76 | |
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| 77 | // ==================================================================================================================== |
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| 78 | // TComTrQuant class member functions |
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| 79 | // ==================================================================================================================== |
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| 80 | |
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| 81 | TComTrQuant::TComTrQuant() |
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| 82 | { |
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| 83 | m_cQP.clear(); |
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| 84 | |
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| 85 | // allocate temporary buffers |
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| 86 | m_plTempCoeff = new Int[ MAX_CU_SIZE*MAX_CU_SIZE ]; |
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| 87 | |
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| 88 | // allocate bit estimation class (for RDOQ) |
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| 89 | m_pcEstBitsSbac = new estBitsSbacStruct; |
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| 90 | initScalingList(); |
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| 91 | } |
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| 92 | |
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| 93 | TComTrQuant::~TComTrQuant() |
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| 94 | { |
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| 95 | // delete temporary buffers |
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| 96 | if ( m_plTempCoeff ) |
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| 97 | { |
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| 98 | delete [] m_plTempCoeff; |
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| 99 | m_plTempCoeff = NULL; |
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| 100 | } |
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| 101 | |
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| 102 | // delete bit estimation class |
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| 103 | if ( m_pcEstBitsSbac ) |
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| 104 | { |
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| 105 | delete m_pcEstBitsSbac; |
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| 106 | } |
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| 107 | destroyScalingList(); |
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| 108 | } |
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| 109 | |
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| 110 | #if ADAPTIVE_QP_SELECTION |
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| 111 | Void TComTrQuant::storeSliceQpNext(TComSlice* pcSlice) |
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| 112 | { |
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| 113 | Int qpBase = pcSlice->getSliceQpBase(); |
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| 114 | Int sliceQpused = pcSlice->getSliceQp(); |
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| 115 | Int sliceQpnext; |
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| 116 | Double alpha = qpBase < 17 ? 0.5 : 1; |
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| 117 | |
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| 118 | Int cnt=0; |
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| 119 | for(Int u=1; u<=LEVEL_RANGE; u++) |
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| 120 | { |
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| 121 | cnt += m_sliceNsamples[u] ; |
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| 122 | } |
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| 123 | |
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| 124 | if( !m_useRDOQ ) |
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| 125 | { |
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| 126 | sliceQpused = qpBase; |
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| 127 | alpha = 0.5; |
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| 128 | } |
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| 129 | |
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| 130 | if( cnt > 120 ) |
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| 131 | { |
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| 132 | Double sum = 0; |
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| 133 | Int k = 0; |
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| 134 | for(Int u=1; u<LEVEL_RANGE; u++) |
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| 135 | { |
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| 136 | sum += u*m_sliceSumC[u]; |
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| 137 | k += u*u*m_sliceNsamples[u]; |
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| 138 | } |
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| 139 | |
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| 140 | Int v; |
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| 141 | Double q[MAX_QP+1] ; |
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| 142 | for(v=0; v<=MAX_QP; v++) |
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| 143 | { |
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| 144 | q[v] = (Double)(g_invQuantScales[v%6] * (1<<(v/6)))/64 ; |
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| 145 | } |
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| 146 | |
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| 147 | Double qnext = sum/k * q[sliceQpused] / (1<<ARL_C_PRECISION); |
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| 148 | |
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| 149 | for(v=0; v<MAX_QP; v++) |
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| 150 | { |
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| 151 | if(qnext < alpha * q[v] + (1 - alpha) * q[v+1] ) |
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| 152 | { |
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| 153 | break; |
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| 154 | } |
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| 155 | } |
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| 156 | sliceQpnext = Clip3(sliceQpused - 3, sliceQpused + 3, v); |
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| 157 | } |
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| 158 | else |
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| 159 | { |
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| 160 | sliceQpnext = sliceQpused; |
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| 161 | } |
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| 162 | |
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| 163 | m_qpDelta[qpBase] = sliceQpnext - qpBase; |
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| 164 | } |
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| 165 | |
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| 166 | Void TComTrQuant::initSliceQpDelta() |
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| 167 | { |
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| 168 | for(Int qp=0; qp<=MAX_QP; qp++) |
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| 169 | { |
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| 170 | m_qpDelta[qp] = qp < 17 ? 0 : 1; |
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| 171 | } |
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| 172 | } |
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| 173 | |
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| 174 | Void TComTrQuant::clearSliceARLCnt() |
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| 175 | { |
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| 176 | memset(m_sliceSumC, 0, sizeof(Double)*(LEVEL_RANGE+1)); |
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| 177 | memset(m_sliceNsamples, 0, sizeof(Int)*(LEVEL_RANGE+1)); |
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| 178 | } |
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| 179 | #endif |
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| 180 | |
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| 181 | |
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| 182 | /** Set qP for Quantization. |
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| 183 | * \param qpy QPy |
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| 184 | * \param bLowpass |
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| 185 | * \param eSliceType |
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| 186 | * \param eTxtType |
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| 187 | * \param qpBdOffset |
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| 188 | * \param chromaQPOffset |
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| 189 | * |
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| 190 | * return void |
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| 191 | */ |
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| 192 | Void TComTrQuant::setQPforQuant( Int qpy, TextType eTxtType, Int qpBdOffset, Int chromaQPOffset) |
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| 193 | { |
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| 194 | Int qpScaled; |
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| 195 | |
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| 196 | if(eTxtType == TEXT_LUMA) |
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| 197 | { |
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| 198 | qpScaled = qpy + qpBdOffset; |
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| 199 | } |
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| 200 | else |
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| 201 | { |
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| 202 | qpScaled = Clip3( -qpBdOffset, 57, qpy + chromaQPOffset ); |
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| 203 | |
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| 204 | if(qpScaled < 0) |
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| 205 | { |
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| 206 | qpScaled = qpScaled + qpBdOffset; |
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| 207 | } |
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| 208 | else |
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| 209 | { |
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| 210 | qpScaled = g_aucChromaScale[ qpScaled ] + qpBdOffset; |
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| 211 | } |
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| 212 | } |
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| 213 | m_cQP.setQpParam( qpScaled ); |
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| 214 | } |
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| 215 | |
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| 216 | #if MATRIX_MULT |
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| 217 | /** NxN forward transform (2D) using brute force matrix multiplication (3 nested loops) |
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| 218 | * \param block pointer to input data (residual) |
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| 219 | * \param coeff pointer to output data (transform coefficients) |
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| 220 | * \param uiStride stride of input data |
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| 221 | * \param uiTrSize transform size (uiTrSize x uiTrSize) |
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| 222 | * \param uiMode is Intra Prediction mode used in Mode-Dependent DCT/DST only |
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| 223 | */ |
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| 224 | void xTr(Int bitDepth, Pel *block, Int *coeff, UInt uiStride, UInt uiTrSize, UInt uiMode) |
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| 225 | { |
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| 226 | Int i,j,k,iSum; |
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| 227 | Int tmp[32*32]; |
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| 228 | const Short *iT; |
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| 229 | UInt uiLog2TrSize = g_aucConvertToBit[ uiTrSize ] + 2; |
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| 230 | |
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| 231 | if (uiTrSize==4) |
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| 232 | { |
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| 233 | iT = g_aiT4[0]; |
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| 234 | } |
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| 235 | else if (uiTrSize==8) |
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| 236 | { |
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| 237 | iT = g_aiT8[0]; |
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| 238 | } |
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| 239 | else if (uiTrSize==16) |
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| 240 | { |
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| 241 | iT = g_aiT16[0]; |
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| 242 | } |
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| 243 | else if (uiTrSize==32) |
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| 244 | { |
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| 245 | iT = g_aiT32[0]; |
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| 246 | } |
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| 247 | else |
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| 248 | { |
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| 249 | assert(0); |
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| 250 | } |
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| 251 | |
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| 252 | Int shift_1st = uiLog2TrSize - 1 + bitDepth-8; // log2(N) - 1 + g_bitDepth-8 |
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| 253 | Int add_1st = 1<<(shift_1st-1); |
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| 254 | Int shift_2nd = uiLog2TrSize + 6; |
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| 255 | Int add_2nd = 1<<(shift_2nd-1); |
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| 256 | |
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| 257 | /* Horizontal transform */ |
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| 258 | |
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| 259 | if (uiTrSize==4) |
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| 260 | { |
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| 261 | if (uiMode != REG_DCT && g_aucDCTDSTMode_Hor[uiMode]) |
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| 262 | { |
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| 263 | iT = g_as_DST_MAT_4[0]; |
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| 264 | } |
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| 265 | } |
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| 266 | for (i=0; i<uiTrSize; i++) |
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| 267 | { |
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| 268 | for (j=0; j<uiTrSize; j++) |
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| 269 | { |
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| 270 | iSum = 0; |
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| 271 | for (k=0; k<uiTrSize; k++) |
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| 272 | { |
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| 273 | iSum += iT[i*uiTrSize+k]*block[j*uiStride+k]; |
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| 274 | } |
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| 275 | tmp[i*uiTrSize+j] = (iSum + add_1st)>>shift_1st; |
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| 276 | } |
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| 277 | } |
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| 278 | |
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| 279 | /* Vertical transform */ |
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| 280 | if (uiTrSize==4) |
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| 281 | { |
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| 282 | if (uiMode != REG_DCT && g_aucDCTDSTMode_Vert[uiMode]) |
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| 283 | { |
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| 284 | iT = g_as_DST_MAT_4[0]; |
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| 285 | } |
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| 286 | else |
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| 287 | { |
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| 288 | iT = g_aiT4[0]; |
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| 289 | } |
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| 290 | } |
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| 291 | for (i=0; i<uiTrSize; i++) |
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| 292 | { |
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| 293 | for (j=0; j<uiTrSize; j++) |
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| 294 | { |
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| 295 | iSum = 0; |
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| 296 | for (k=0; k<uiTrSize; k++) |
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| 297 | { |
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| 298 | iSum += iT[i*uiTrSize+k]*tmp[j*uiTrSize+k]; |
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| 299 | } |
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| 300 | coeff[i*uiTrSize+j] = (iSum + add_2nd)>>shift_2nd; |
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| 301 | } |
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| 302 | } |
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| 303 | } |
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| 304 | |
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| 305 | /** NxN inverse transform (2D) using brute force matrix multiplication (3 nested loops) |
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| 306 | * \param coeff pointer to input data (transform coefficients) |
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| 307 | * \param block pointer to output data (residual) |
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| 308 | * \param uiStride stride of output data |
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| 309 | * \param uiTrSize transform size (uiTrSize x uiTrSize) |
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| 310 | * \param uiMode is Intra Prediction mode used in Mode-Dependent DCT/DST only |
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| 311 | */ |
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| 312 | void xITr(Int *coeff, Pel *block, UInt uiStride, UInt uiTrSize, UInt uiMode) |
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| 313 | { |
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| 314 | Int i,j,k,iSum; |
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| 315 | Int tmp[32*32]; |
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| 316 | const Short *iT; |
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| 317 | |
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| 318 | if (uiTrSize==4) |
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| 319 | { |
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| 320 | iT = g_aiT4[0]; |
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| 321 | } |
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| 322 | else if (uiTrSize==8) |
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| 323 | { |
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| 324 | iT = g_aiT8[0]; |
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| 325 | } |
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| 326 | else if (uiTrSize==16) |
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| 327 | { |
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| 328 | iT = g_aiT16[0]; |
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| 329 | } |
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| 330 | else if (uiTrSize==32) |
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| 331 | { |
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| 332 | iT = g_aiT32[0]; |
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| 333 | } |
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| 334 | else |
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| 335 | { |
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| 336 | assert(0); |
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| 337 | } |
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| 338 | |
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| 339 | Int shift_1st = SHIFT_INV_1ST; |
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| 340 | Int add_1st = 1<<(shift_1st-1); |
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| 341 | Int shift_2nd = SHIFT_INV_2ND - g_bitDepth-8; |
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| 342 | Int add_2nd = 1<<(shift_2nd-1); |
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| 343 | if (uiTrSize==4) |
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| 344 | { |
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| 345 | if (uiMode != REG_DCT && g_aucDCTDSTMode_Vert[uiMode] ) // Check for DCT or DST |
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| 346 | { |
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| 347 | iT = g_as_DST_MAT_4[0]; |
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| 348 | } |
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| 349 | } |
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| 350 | |
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| 351 | /* Horizontal transform */ |
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| 352 | for (i=0; i<uiTrSize; i++) |
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| 353 | { |
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| 354 | for (j=0; j<uiTrSize; j++) |
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| 355 | { |
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| 356 | iSum = 0; |
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| 357 | for (k=0; k<uiTrSize; k++) |
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| 358 | { |
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| 359 | iSum += iT[k*uiTrSize+i]*coeff[k*uiTrSize+j]; |
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| 360 | } |
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| 361 | tmp[i*uiTrSize+j] = Clip3(-32768, 32767, (iSum + add_1st)>>shift_1st); // Clipping is normative |
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| 362 | } |
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| 363 | } |
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| 364 | |
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| 365 | if (uiTrSize==4) |
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| 366 | { |
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| 367 | if (uiMode != REG_DCT && g_aucDCTDSTMode_Hor[uiMode] ) // Check for DCT or DST |
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| 368 | { |
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| 369 | iT = g_as_DST_MAT_4[0]; |
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| 370 | } |
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| 371 | else |
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| 372 | { |
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| 373 | iT = g_aiT4[0]; |
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| 374 | } |
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| 375 | } |
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| 376 | |
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| 377 | /* Vertical transform */ |
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| 378 | for (i=0; i<uiTrSize; i++) |
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| 379 | { |
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| 380 | for (j=0; j<uiTrSize; j++) |
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| 381 | { |
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| 382 | iSum = 0; |
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| 383 | for (k=0; k<uiTrSize; k++) |
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| 384 | { |
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| 385 | iSum += iT[k*uiTrSize+j]*tmp[i*uiTrSize+k]; |
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| 386 | } |
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| 387 | block[i*uiStride+j] = Clip3(-32768, 32767, (iSum + add_2nd)>>shift_2nd); // Clipping is non-normative |
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| 388 | } |
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| 389 | } |
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| 390 | } |
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| 391 | |
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| 392 | #else //MATRIX_MULT |
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| 393 | |
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| 394 | /** 4x4 forward transform implemented using partial butterfly structure (1D) |
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| 395 | * \param src input data (residual) |
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| 396 | * \param dst output data (transform coefficients) |
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| 397 | * \param shift specifies right shift after 1D transform |
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| 398 | */ |
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| 399 | |
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| 400 | void partialButterfly4(Short *src,Short *dst,Int shift, Int line) |
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| 401 | { |
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| 402 | Int j; |
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| 403 | Int E[2],O[2]; |
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| 404 | Int add = 1<<(shift-1); |
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| 405 | |
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| 406 | for (j=0; j<line; j++) |
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| 407 | { |
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| 408 | /* E and O */ |
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| 409 | E[0] = src[0] + src[3]; |
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| 410 | O[0] = src[0] - src[3]; |
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| 411 | E[1] = src[1] + src[2]; |
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| 412 | O[1] = src[1] - src[2]; |
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| 413 | |
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| 414 | dst[0] = (g_aiT4[0][0]*E[0] + g_aiT4[0][1]*E[1] + add)>>shift; |
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| 415 | dst[2*line] = (g_aiT4[2][0]*E[0] + g_aiT4[2][1]*E[1] + add)>>shift; |
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| 416 | dst[line] = (g_aiT4[1][0]*O[0] + g_aiT4[1][1]*O[1] + add)>>shift; |
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| 417 | dst[3*line] = (g_aiT4[3][0]*O[0] + g_aiT4[3][1]*O[1] + add)>>shift; |
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| 418 | |
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| 419 | src += 4; |
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| 420 | dst ++; |
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| 421 | } |
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| 422 | } |
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| 423 | |
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| 424 | // Fast DST Algorithm. Full matrix multiplication for DST and Fast DST algorithm |
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| 425 | // give identical results |
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| 426 | void fastForwardDst(Short *block,Short *coeff,Int shift) // input block, output coeff |
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| 427 | { |
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| 428 | Int i, c[4]; |
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| 429 | Int rnd_factor = 1<<(shift-1); |
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| 430 | for (i=0; i<4; i++) |
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| 431 | { |
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| 432 | // Intermediate Variables |
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| 433 | c[0] = block[4*i+0] + block[4*i+3]; |
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| 434 | c[1] = block[4*i+1] + block[4*i+3]; |
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| 435 | c[2] = block[4*i+0] - block[4*i+1]; |
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| 436 | c[3] = 74* block[4*i+2]; |
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| 437 | |
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| 438 | coeff[ i] = ( 29 * c[0] + 55 * c[1] + c[3] + rnd_factor ) >> shift; |
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| 439 | coeff[ 4+i] = ( 74 * (block[4*i+0]+ block[4*i+1] - block[4*i+3]) + rnd_factor ) >> shift; |
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| 440 | coeff[ 8+i] = ( 29 * c[2] + 55 * c[0] - c[3] + rnd_factor ) >> shift; |
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| 441 | coeff[12+i] = ( 55 * c[2] - 29 * c[1] + c[3] + rnd_factor ) >> shift; |
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| 442 | } |
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| 443 | } |
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| 444 | |
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| 445 | void fastInverseDst(Short *tmp,Short *block,Int shift) // input tmp, output block |
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| 446 | { |
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| 447 | Int i, c[4]; |
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| 448 | Int rnd_factor = 1<<(shift-1); |
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| 449 | for (i=0; i<4; i++) |
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| 450 | { |
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| 451 | // Intermediate Variables |
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| 452 | c[0] = tmp[ i] + tmp[ 8+i]; |
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| 453 | c[1] = tmp[8+i] + tmp[12+i]; |
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| 454 | c[2] = tmp[ i] - tmp[12+i]; |
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| 455 | c[3] = 74* tmp[4+i]; |
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| 456 | |
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| 457 | block[4*i+0] = Clip3( -32768, 32767, ( 29 * c[0] + 55 * c[1] + c[3] + rnd_factor ) >> shift ); |
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| 458 | block[4*i+1] = Clip3( -32768, 32767, ( 55 * c[2] - 29 * c[1] + c[3] + rnd_factor ) >> shift ); |
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| 459 | block[4*i+2] = Clip3( -32768, 32767, ( 74 * (tmp[i] - tmp[8+i] + tmp[12+i]) + rnd_factor ) >> shift ); |
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| 460 | block[4*i+3] = Clip3( -32768, 32767, ( 55 * c[0] + 29 * c[2] - c[3] + rnd_factor ) >> shift ); |
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| 461 | } |
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| 462 | } |
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| 463 | |
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| 464 | void partialButterflyInverse4(Short *src,Short *dst,Int shift, Int line) |
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| 465 | { |
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| 466 | Int j; |
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| 467 | Int E[2],O[2]; |
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| 468 | Int add = 1<<(shift-1); |
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| 469 | |
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| 470 | for (j=0; j<line; j++) |
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| 471 | { |
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| 472 | /* Utilizing symmetry properties to the maximum to minimize the number of multiplications */ |
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| 473 | O[0] = g_aiT4[1][0]*src[line] + g_aiT4[3][0]*src[3*line]; |
---|
| 474 | O[1] = g_aiT4[1][1]*src[line] + g_aiT4[3][1]*src[3*line]; |
---|
| 475 | E[0] = g_aiT4[0][0]*src[0] + g_aiT4[2][0]*src[2*line]; |
---|
| 476 | E[1] = g_aiT4[0][1]*src[0] + g_aiT4[2][1]*src[2*line]; |
---|
| 477 | |
---|
| 478 | /* Combining even and odd terms at each hierarchy levels to calculate the final spatial domain vector */ |
---|
| 479 | dst[0] = Clip3( -32768, 32767, (E[0] + O[0] + add)>>shift ); |
---|
| 480 | dst[1] = Clip3( -32768, 32767, (E[1] + O[1] + add)>>shift ); |
---|
| 481 | dst[2] = Clip3( -32768, 32767, (E[1] - O[1] + add)>>shift ); |
---|
| 482 | dst[3] = Clip3( -32768, 32767, (E[0] - O[0] + add)>>shift ); |
---|
| 483 | |
---|
| 484 | src ++; |
---|
| 485 | dst += 4; |
---|
| 486 | } |
---|
| 487 | } |
---|
| 488 | |
---|
| 489 | |
---|
| 490 | void partialButterfly8(Short *src,Short *dst,Int shift, Int line) |
---|
| 491 | { |
---|
| 492 | Int j,k; |
---|
| 493 | Int E[4],O[4]; |
---|
| 494 | Int EE[2],EO[2]; |
---|
| 495 | Int add = 1<<(shift-1); |
---|
| 496 | |
---|
| 497 | for (j=0; j<line; j++) |
---|
| 498 | { |
---|
| 499 | /* E and O*/ |
---|
| 500 | for (k=0;k<4;k++) |
---|
| 501 | { |
---|
| 502 | E[k] = src[k] + src[7-k]; |
---|
| 503 | O[k] = src[k] - src[7-k]; |
---|
| 504 | } |
---|
| 505 | /* EE and EO */ |
---|
| 506 | EE[0] = E[0] + E[3]; |
---|
| 507 | EO[0] = E[0] - E[3]; |
---|
| 508 | EE[1] = E[1] + E[2]; |
---|
| 509 | EO[1] = E[1] - E[2]; |
---|
| 510 | |
---|
| 511 | dst[0] = (g_aiT8[0][0]*EE[0] + g_aiT8[0][1]*EE[1] + add)>>shift; |
---|
| 512 | dst[4*line] = (g_aiT8[4][0]*EE[0] + g_aiT8[4][1]*EE[1] + add)>>shift; |
---|
| 513 | dst[2*line] = (g_aiT8[2][0]*EO[0] + g_aiT8[2][1]*EO[1] + add)>>shift; |
---|
| 514 | dst[6*line] = (g_aiT8[6][0]*EO[0] + g_aiT8[6][1]*EO[1] + add)>>shift; |
---|
| 515 | |
---|
| 516 | dst[line] = (g_aiT8[1][0]*O[0] + g_aiT8[1][1]*O[1] + g_aiT8[1][2]*O[2] + g_aiT8[1][3]*O[3] + add)>>shift; |
---|
| 517 | dst[3*line] = (g_aiT8[3][0]*O[0] + g_aiT8[3][1]*O[1] + g_aiT8[3][2]*O[2] + g_aiT8[3][3]*O[3] + add)>>shift; |
---|
| 518 | dst[5*line] = (g_aiT8[5][0]*O[0] + g_aiT8[5][1]*O[1] + g_aiT8[5][2]*O[2] + g_aiT8[5][3]*O[3] + add)>>shift; |
---|
| 519 | dst[7*line] = (g_aiT8[7][0]*O[0] + g_aiT8[7][1]*O[1] + g_aiT8[7][2]*O[2] + g_aiT8[7][3]*O[3] + add)>>shift; |
---|
| 520 | |
---|
| 521 | src += 8; |
---|
| 522 | dst ++; |
---|
| 523 | } |
---|
| 524 | } |
---|
| 525 | |
---|
| 526 | |
---|
| 527 | void partialButterflyInverse8(Short *src,Short *dst,Int shift, Int line) |
---|
| 528 | { |
---|
| 529 | Int j,k; |
---|
| 530 | Int E[4],O[4]; |
---|
| 531 | Int EE[2],EO[2]; |
---|
| 532 | Int add = 1<<(shift-1); |
---|
| 533 | |
---|
| 534 | for (j=0; j<line; j++) |
---|
| 535 | { |
---|
| 536 | /* Utilizing symmetry properties to the maximum to minimize the number of multiplications */ |
---|
| 537 | for (k=0;k<4;k++) |
---|
| 538 | { |
---|
| 539 | O[k] = g_aiT8[ 1][k]*src[line] + g_aiT8[ 3][k]*src[3*line] + g_aiT8[ 5][k]*src[5*line] + g_aiT8[ 7][k]*src[7*line]; |
---|
| 540 | } |
---|
| 541 | |
---|
| 542 | EO[0] = g_aiT8[2][0]*src[ 2*line ] + g_aiT8[6][0]*src[ 6*line ]; |
---|
| 543 | EO[1] = g_aiT8[2][1]*src[ 2*line ] + g_aiT8[6][1]*src[ 6*line ]; |
---|
| 544 | EE[0] = g_aiT8[0][0]*src[ 0 ] + g_aiT8[4][0]*src[ 4*line ]; |
---|
| 545 | EE[1] = g_aiT8[0][1]*src[ 0 ] + g_aiT8[4][1]*src[ 4*line ]; |
---|
| 546 | |
---|
| 547 | /* Combining even and odd terms at each hierarchy levels to calculate the final spatial domain vector */ |
---|
| 548 | E[0] = EE[0] + EO[0]; |
---|
| 549 | E[3] = EE[0] - EO[0]; |
---|
| 550 | E[1] = EE[1] + EO[1]; |
---|
| 551 | E[2] = EE[1] - EO[1]; |
---|
| 552 | for (k=0;k<4;k++) |
---|
| 553 | { |
---|
| 554 | dst[ k ] = Clip3( -32768, 32767, (E[k] + O[k] + add)>>shift ); |
---|
| 555 | dst[ k+4 ] = Clip3( -32768, 32767, (E[3-k] - O[3-k] + add)>>shift ); |
---|
| 556 | } |
---|
| 557 | src ++; |
---|
| 558 | dst += 8; |
---|
| 559 | } |
---|
| 560 | } |
---|
| 561 | |
---|
| 562 | |
---|
| 563 | void partialButterfly16(Short *src,Short *dst,Int shift, Int line) |
---|
| 564 | { |
---|
| 565 | Int j,k; |
---|
| 566 | Int E[8],O[8]; |
---|
| 567 | Int EE[4],EO[4]; |
---|
| 568 | Int EEE[2],EEO[2]; |
---|
| 569 | Int add = 1<<(shift-1); |
---|
| 570 | |
---|
| 571 | for (j=0; j<line; j++) |
---|
| 572 | { |
---|
| 573 | /* E and O*/ |
---|
| 574 | for (k=0;k<8;k++) |
---|
| 575 | { |
---|
| 576 | E[k] = src[k] + src[15-k]; |
---|
| 577 | O[k] = src[k] - src[15-k]; |
---|
| 578 | } |
---|
| 579 | /* EE and EO */ |
---|
| 580 | for (k=0;k<4;k++) |
---|
| 581 | { |
---|
| 582 | EE[k] = E[k] + E[7-k]; |
---|
| 583 | EO[k] = E[k] - E[7-k]; |
---|
| 584 | } |
---|
| 585 | /* EEE and EEO */ |
---|
| 586 | EEE[0] = EE[0] + EE[3]; |
---|
| 587 | EEO[0] = EE[0] - EE[3]; |
---|
| 588 | EEE[1] = EE[1] + EE[2]; |
---|
| 589 | EEO[1] = EE[1] - EE[2]; |
---|
| 590 | |
---|
| 591 | dst[ 0 ] = (g_aiT16[ 0][0]*EEE[0] + g_aiT16[ 0][1]*EEE[1] + add)>>shift; |
---|
| 592 | dst[ 8*line ] = (g_aiT16[ 8][0]*EEE[0] + g_aiT16[ 8][1]*EEE[1] + add)>>shift; |
---|
| 593 | dst[ 4*line ] = (g_aiT16[ 4][0]*EEO[0] + g_aiT16[ 4][1]*EEO[1] + add)>>shift; |
---|
| 594 | dst[ 12*line] = (g_aiT16[12][0]*EEO[0] + g_aiT16[12][1]*EEO[1] + add)>>shift; |
---|
| 595 | |
---|
| 596 | for (k=2;k<16;k+=4) |
---|
| 597 | { |
---|
| 598 | dst[ k*line ] = (g_aiT16[k][0]*EO[0] + g_aiT16[k][1]*EO[1] + g_aiT16[k][2]*EO[2] + g_aiT16[k][3]*EO[3] + add)>>shift; |
---|
| 599 | } |
---|
| 600 | |
---|
| 601 | for (k=1;k<16;k+=2) |
---|
| 602 | { |
---|
| 603 | dst[ k*line ] = (g_aiT16[k][0]*O[0] + g_aiT16[k][1]*O[1] + g_aiT16[k][2]*O[2] + g_aiT16[k][3]*O[3] + |
---|
| 604 | g_aiT16[k][4]*O[4] + g_aiT16[k][5]*O[5] + g_aiT16[k][6]*O[6] + g_aiT16[k][7]*O[7] + add)>>shift; |
---|
| 605 | } |
---|
| 606 | |
---|
| 607 | src += 16; |
---|
| 608 | dst ++; |
---|
| 609 | |
---|
| 610 | } |
---|
| 611 | } |
---|
| 612 | |
---|
| 613 | |
---|
| 614 | void partialButterflyInverse16(Short *src,Short *dst,Int shift, Int line) |
---|
| 615 | { |
---|
| 616 | Int j,k; |
---|
| 617 | Int E[8],O[8]; |
---|
| 618 | Int EE[4],EO[4]; |
---|
| 619 | Int EEE[2],EEO[2]; |
---|
| 620 | Int add = 1<<(shift-1); |
---|
| 621 | |
---|
| 622 | for (j=0; j<line; j++) |
---|
| 623 | { |
---|
| 624 | /* Utilizing symmetry properties to the maximum to minimize the number of multiplications */ |
---|
| 625 | for (k=0;k<8;k++) |
---|
| 626 | { |
---|
| 627 | O[k] = g_aiT16[ 1][k]*src[ line] + g_aiT16[ 3][k]*src[ 3*line] + g_aiT16[ 5][k]*src[ 5*line] + g_aiT16[ 7][k]*src[ 7*line] + |
---|
| 628 | g_aiT16[ 9][k]*src[ 9*line] + g_aiT16[11][k]*src[11*line] + g_aiT16[13][k]*src[13*line] + g_aiT16[15][k]*src[15*line]; |
---|
| 629 | } |
---|
| 630 | for (k=0;k<4;k++) |
---|
| 631 | { |
---|
| 632 | EO[k] = g_aiT16[ 2][k]*src[ 2*line] + g_aiT16[ 6][k]*src[ 6*line] + g_aiT16[10][k]*src[10*line] + g_aiT16[14][k]*src[14*line]; |
---|
| 633 | } |
---|
| 634 | EEO[0] = g_aiT16[4][0]*src[ 4*line ] + g_aiT16[12][0]*src[ 12*line ]; |
---|
| 635 | EEE[0] = g_aiT16[0][0]*src[ 0 ] + g_aiT16[ 8][0]*src[ 8*line ]; |
---|
| 636 | EEO[1] = g_aiT16[4][1]*src[ 4*line ] + g_aiT16[12][1]*src[ 12*line ]; |
---|
| 637 | EEE[1] = g_aiT16[0][1]*src[ 0 ] + g_aiT16[ 8][1]*src[ 8*line ]; |
---|
| 638 | |
---|
| 639 | /* Combining even and odd terms at each hierarchy levels to calculate the final spatial domain vector */ |
---|
| 640 | for (k=0;k<2;k++) |
---|
| 641 | { |
---|
| 642 | EE[k] = EEE[k] + EEO[k]; |
---|
| 643 | EE[k+2] = EEE[1-k] - EEO[1-k]; |
---|
| 644 | } |
---|
| 645 | for (k=0;k<4;k++) |
---|
| 646 | { |
---|
| 647 | E[k] = EE[k] + EO[k]; |
---|
| 648 | E[k+4] = EE[3-k] - EO[3-k]; |
---|
| 649 | } |
---|
| 650 | for (k=0;k<8;k++) |
---|
| 651 | { |
---|
| 652 | dst[k] = Clip3( -32768, 32767, (E[k] + O[k] + add)>>shift ); |
---|
| 653 | dst[k+8] = Clip3( -32768, 32767, (E[7-k] - O[7-k] + add)>>shift ); |
---|
| 654 | } |
---|
| 655 | src ++; |
---|
| 656 | dst += 16; |
---|
| 657 | } |
---|
| 658 | } |
---|
| 659 | |
---|
| 660 | |
---|
| 661 | void partialButterfly32(Short *src,Short *dst,Int shift, Int line) |
---|
| 662 | { |
---|
| 663 | Int j,k; |
---|
| 664 | Int E[16],O[16]; |
---|
| 665 | Int EE[8],EO[8]; |
---|
| 666 | Int EEE[4],EEO[4]; |
---|
| 667 | Int EEEE[2],EEEO[2]; |
---|
| 668 | Int add = 1<<(shift-1); |
---|
| 669 | |
---|
| 670 | for (j=0; j<line; j++) |
---|
| 671 | { |
---|
| 672 | /* E and O*/ |
---|
| 673 | for (k=0;k<16;k++) |
---|
| 674 | { |
---|
| 675 | E[k] = src[k] + src[31-k]; |
---|
| 676 | O[k] = src[k] - src[31-k]; |
---|
| 677 | } |
---|
| 678 | /* EE and EO */ |
---|
| 679 | for (k=0;k<8;k++) |
---|
| 680 | { |
---|
| 681 | EE[k] = E[k] + E[15-k]; |
---|
| 682 | EO[k] = E[k] - E[15-k]; |
---|
| 683 | } |
---|
| 684 | /* EEE and EEO */ |
---|
| 685 | for (k=0;k<4;k++) |
---|
| 686 | { |
---|
| 687 | EEE[k] = EE[k] + EE[7-k]; |
---|
| 688 | EEO[k] = EE[k] - EE[7-k]; |
---|
| 689 | } |
---|
| 690 | /* EEEE and EEEO */ |
---|
| 691 | EEEE[0] = EEE[0] + EEE[3]; |
---|
| 692 | EEEO[0] = EEE[0] - EEE[3]; |
---|
| 693 | EEEE[1] = EEE[1] + EEE[2]; |
---|
| 694 | EEEO[1] = EEE[1] - EEE[2]; |
---|
| 695 | |
---|
| 696 | dst[ 0 ] = (g_aiT32[ 0][0]*EEEE[0] + g_aiT32[ 0][1]*EEEE[1] + add)>>shift; |
---|
| 697 | dst[ 16*line ] = (g_aiT32[16][0]*EEEE[0] + g_aiT32[16][1]*EEEE[1] + add)>>shift; |
---|
| 698 | dst[ 8*line ] = (g_aiT32[ 8][0]*EEEO[0] + g_aiT32[ 8][1]*EEEO[1] + add)>>shift; |
---|
| 699 | dst[ 24*line ] = (g_aiT32[24][0]*EEEO[0] + g_aiT32[24][1]*EEEO[1] + add)>>shift; |
---|
| 700 | for (k=4;k<32;k+=8) |
---|
| 701 | { |
---|
| 702 | dst[ k*line ] = (g_aiT32[k][0]*EEO[0] + g_aiT32[k][1]*EEO[1] + g_aiT32[k][2]*EEO[2] + g_aiT32[k][3]*EEO[3] + add)>>shift; |
---|
| 703 | } |
---|
| 704 | for (k=2;k<32;k+=4) |
---|
| 705 | { |
---|
| 706 | dst[ k*line ] = (g_aiT32[k][0]*EO[0] + g_aiT32[k][1]*EO[1] + g_aiT32[k][2]*EO[2] + g_aiT32[k][3]*EO[3] + |
---|
| 707 | g_aiT32[k][4]*EO[4] + g_aiT32[k][5]*EO[5] + g_aiT32[k][6]*EO[6] + g_aiT32[k][7]*EO[7] + add)>>shift; |
---|
| 708 | } |
---|
| 709 | for (k=1;k<32;k+=2) |
---|
| 710 | { |
---|
| 711 | dst[ k*line ] = (g_aiT32[k][ 0]*O[ 0] + g_aiT32[k][ 1]*O[ 1] + g_aiT32[k][ 2]*O[ 2] + g_aiT32[k][ 3]*O[ 3] + |
---|
| 712 | g_aiT32[k][ 4]*O[ 4] + g_aiT32[k][ 5]*O[ 5] + g_aiT32[k][ 6]*O[ 6] + g_aiT32[k][ 7]*O[ 7] + |
---|
| 713 | g_aiT32[k][ 8]*O[ 8] + g_aiT32[k][ 9]*O[ 9] + g_aiT32[k][10]*O[10] + g_aiT32[k][11]*O[11] + |
---|
| 714 | g_aiT32[k][12]*O[12] + g_aiT32[k][13]*O[13] + g_aiT32[k][14]*O[14] + g_aiT32[k][15]*O[15] + add)>>shift; |
---|
| 715 | } |
---|
| 716 | src += 32; |
---|
| 717 | dst ++; |
---|
| 718 | } |
---|
| 719 | } |
---|
| 720 | |
---|
| 721 | |
---|
| 722 | void partialButterflyInverse32(Short *src,Short *dst,Int shift, Int line) |
---|
| 723 | { |
---|
| 724 | Int j,k; |
---|
| 725 | Int E[16],O[16]; |
---|
| 726 | Int EE[8],EO[8]; |
---|
| 727 | Int EEE[4],EEO[4]; |
---|
| 728 | Int EEEE[2],EEEO[2]; |
---|
| 729 | Int add = 1<<(shift-1); |
---|
| 730 | |
---|
| 731 | for (j=0; j<line; j++) |
---|
| 732 | { |
---|
| 733 | /* Utilizing symmetry properties to the maximum to minimize the number of multiplications */ |
---|
| 734 | for (k=0;k<16;k++) |
---|
| 735 | { |
---|
| 736 | O[k] = g_aiT32[ 1][k]*src[ line ] + g_aiT32[ 3][k]*src[ 3*line ] + g_aiT32[ 5][k]*src[ 5*line ] + g_aiT32[ 7][k]*src[ 7*line ] + |
---|
| 737 | g_aiT32[ 9][k]*src[ 9*line ] + g_aiT32[11][k]*src[ 11*line ] + g_aiT32[13][k]*src[ 13*line ] + g_aiT32[15][k]*src[ 15*line ] + |
---|
| 738 | g_aiT32[17][k]*src[ 17*line ] + g_aiT32[19][k]*src[ 19*line ] + g_aiT32[21][k]*src[ 21*line ] + g_aiT32[23][k]*src[ 23*line ] + |
---|
| 739 | g_aiT32[25][k]*src[ 25*line ] + g_aiT32[27][k]*src[ 27*line ] + g_aiT32[29][k]*src[ 29*line ] + g_aiT32[31][k]*src[ 31*line ]; |
---|
| 740 | } |
---|
| 741 | for (k=0;k<8;k++) |
---|
| 742 | { |
---|
| 743 | EO[k] = g_aiT32[ 2][k]*src[ 2*line ] + g_aiT32[ 6][k]*src[ 6*line ] + g_aiT32[10][k]*src[ 10*line ] + g_aiT32[14][k]*src[ 14*line ] + |
---|
| 744 | g_aiT32[18][k]*src[ 18*line ] + g_aiT32[22][k]*src[ 22*line ] + g_aiT32[26][k]*src[ 26*line ] + g_aiT32[30][k]*src[ 30*line ]; |
---|
| 745 | } |
---|
| 746 | for (k=0;k<4;k++) |
---|
| 747 | { |
---|
| 748 | EEO[k] = g_aiT32[4][k]*src[ 4*line ] + g_aiT32[12][k]*src[ 12*line ] + g_aiT32[20][k]*src[ 20*line ] + g_aiT32[28][k]*src[ 28*line ]; |
---|
| 749 | } |
---|
| 750 | EEEO[0] = g_aiT32[8][0]*src[ 8*line ] + g_aiT32[24][0]*src[ 24*line ]; |
---|
| 751 | EEEO[1] = g_aiT32[8][1]*src[ 8*line ] + g_aiT32[24][1]*src[ 24*line ]; |
---|
| 752 | EEEE[0] = g_aiT32[0][0]*src[ 0 ] + g_aiT32[16][0]*src[ 16*line ]; |
---|
| 753 | EEEE[1] = g_aiT32[0][1]*src[ 0 ] + g_aiT32[16][1]*src[ 16*line ]; |
---|
| 754 | |
---|
| 755 | /* Combining even and odd terms at each hierarchy levels to calculate the final spatial domain vector */ |
---|
| 756 | EEE[0] = EEEE[0] + EEEO[0]; |
---|
| 757 | EEE[3] = EEEE[0] - EEEO[0]; |
---|
| 758 | EEE[1] = EEEE[1] + EEEO[1]; |
---|
| 759 | EEE[2] = EEEE[1] - EEEO[1]; |
---|
| 760 | for (k=0;k<4;k++) |
---|
| 761 | { |
---|
| 762 | EE[k] = EEE[k] + EEO[k]; |
---|
| 763 | EE[k+4] = EEE[3-k] - EEO[3-k]; |
---|
| 764 | } |
---|
| 765 | for (k=0;k<8;k++) |
---|
| 766 | { |
---|
| 767 | E[k] = EE[k] + EO[k]; |
---|
| 768 | E[k+8] = EE[7-k] - EO[7-k]; |
---|
| 769 | } |
---|
| 770 | for (k=0;k<16;k++) |
---|
| 771 | { |
---|
| 772 | dst[k] = Clip3( -32768, 32767, (E[k] + O[k] + add)>>shift ); |
---|
| 773 | dst[k+16] = Clip3( -32768, 32767, (E[15-k] - O[15-k] + add)>>shift ); |
---|
| 774 | } |
---|
| 775 | src ++; |
---|
| 776 | dst += 32; |
---|
| 777 | } |
---|
| 778 | } |
---|
| 779 | |
---|
| 780 | /** MxN forward transform (2D) |
---|
| 781 | * \param block input data (residual) |
---|
| 782 | * \param coeff output data (transform coefficients) |
---|
| 783 | * \param iWidth input data (width of transform) |
---|
| 784 | * \param iHeight input data (height of transform) |
---|
| 785 | */ |
---|
| 786 | void xTrMxN(Int bitDepth, Short *block,Short *coeff, Int iWidth, Int iHeight, UInt uiMode) |
---|
| 787 | { |
---|
| 788 | Int shift_1st = g_aucConvertToBit[iWidth] + 1 + bitDepth-8; // log2(iWidth) - 1 + g_bitDepth - 8 |
---|
| 789 | Int shift_2nd = g_aucConvertToBit[iHeight] + 8; // log2(iHeight) + 6 |
---|
| 790 | |
---|
| 791 | Short tmp[ 64 * 64 ]; |
---|
| 792 | |
---|
| 793 | if( iWidth == 4 && iHeight == 4) |
---|
| 794 | { |
---|
| 795 | if (uiMode != REG_DCT) |
---|
| 796 | { |
---|
| 797 | fastForwardDst(block,tmp,shift_1st); // Forward DST BY FAST ALGORITHM, block input, tmp output |
---|
| 798 | fastForwardDst(tmp,coeff,shift_2nd); // Forward DST BY FAST ALGORITHM, tmp input, coeff output |
---|
| 799 | } |
---|
| 800 | else |
---|
| 801 | { |
---|
| 802 | partialButterfly4(block, tmp, shift_1st, iHeight); |
---|
| 803 | partialButterfly4(tmp, coeff, shift_2nd, iWidth); |
---|
| 804 | } |
---|
| 805 | |
---|
| 806 | } |
---|
| 807 | else if( iWidth == 8 && iHeight == 8) |
---|
| 808 | { |
---|
| 809 | partialButterfly8( block, tmp, shift_1st, iHeight ); |
---|
| 810 | partialButterfly8( tmp, coeff, shift_2nd, iWidth ); |
---|
| 811 | } |
---|
| 812 | else if( iWidth == 16 && iHeight == 16) |
---|
| 813 | { |
---|
| 814 | partialButterfly16( block, tmp, shift_1st, iHeight ); |
---|
| 815 | partialButterfly16( tmp, coeff, shift_2nd, iWidth ); |
---|
| 816 | } |
---|
| 817 | else if( iWidth == 32 && iHeight == 32) |
---|
| 818 | { |
---|
| 819 | partialButterfly32( block, tmp, shift_1st, iHeight ); |
---|
| 820 | partialButterfly32( tmp, coeff, shift_2nd, iWidth ); |
---|
| 821 | } |
---|
| 822 | } |
---|
| 823 | /** MxN inverse transform (2D) |
---|
| 824 | * \param coeff input data (transform coefficients) |
---|
| 825 | * \param block output data (residual) |
---|
| 826 | * \param iWidth input data (width of transform) |
---|
| 827 | * \param iHeight input data (height of transform) |
---|
| 828 | */ |
---|
| 829 | void xITrMxN(Int bitDepth, Short *coeff,Short *block, Int iWidth, Int iHeight, UInt uiMode) |
---|
| 830 | { |
---|
| 831 | Int shift_1st = SHIFT_INV_1ST; |
---|
| 832 | Int shift_2nd = SHIFT_INV_2ND - (bitDepth-8); |
---|
| 833 | |
---|
| 834 | Short tmp[ 64*64]; |
---|
| 835 | if( iWidth == 4 && iHeight == 4) |
---|
| 836 | { |
---|
| 837 | if (uiMode != REG_DCT) |
---|
| 838 | { |
---|
| 839 | fastInverseDst(coeff,tmp,shift_1st); // Inverse DST by FAST Algorithm, coeff input, tmp output |
---|
| 840 | fastInverseDst(tmp,block,shift_2nd); // Inverse DST by FAST Algorithm, tmp input, coeff output |
---|
| 841 | } |
---|
| 842 | else |
---|
| 843 | { |
---|
| 844 | partialButterflyInverse4(coeff,tmp,shift_1st,iWidth); |
---|
| 845 | partialButterflyInverse4(tmp,block,shift_2nd,iHeight); |
---|
| 846 | } |
---|
| 847 | } |
---|
| 848 | else if( iWidth == 8 && iHeight == 8) |
---|
| 849 | { |
---|
| 850 | partialButterflyInverse8(coeff,tmp,shift_1st,iWidth); |
---|
| 851 | partialButterflyInverse8(tmp,block,shift_2nd,iHeight); |
---|
| 852 | } |
---|
| 853 | else if( iWidth == 16 && iHeight == 16) |
---|
| 854 | { |
---|
| 855 | partialButterflyInverse16(coeff,tmp,shift_1st,iWidth); |
---|
| 856 | partialButterflyInverse16(tmp,block,shift_2nd,iHeight); |
---|
| 857 | } |
---|
| 858 | else if( iWidth == 32 && iHeight == 32) |
---|
| 859 | { |
---|
| 860 | partialButterflyInverse32(coeff,tmp,shift_1st,iWidth); |
---|
| 861 | partialButterflyInverse32(tmp,block,shift_2nd,iHeight); |
---|
| 862 | } |
---|
| 863 | } |
---|
| 864 | |
---|
| 865 | #endif //MATRIX_MULT |
---|
| 866 | |
---|
| 867 | // To minimize the distortion only. No rate is considered. |
---|
| 868 | Void TComTrQuant::signBitHidingHDQ( TCoeff* pQCoef, TCoeff* pCoef, UInt const *scan, Int* deltaU, Int width, Int height ) |
---|
| 869 | { |
---|
| 870 | Int lastCG = -1; |
---|
| 871 | Int absSum = 0 ; |
---|
| 872 | Int n ; |
---|
| 873 | |
---|
| 874 | for( Int subSet = (width*height-1) >> LOG2_SCAN_SET_SIZE; subSet >= 0; subSet-- ) |
---|
| 875 | { |
---|
| 876 | Int subPos = subSet << LOG2_SCAN_SET_SIZE; |
---|
| 877 | Int firstNZPosInCG=SCAN_SET_SIZE , lastNZPosInCG=-1 ; |
---|
| 878 | absSum = 0 ; |
---|
| 879 | |
---|
| 880 | for(n = SCAN_SET_SIZE-1; n >= 0; --n ) |
---|
| 881 | { |
---|
| 882 | if( pQCoef[ scan[ n + subPos ]] ) |
---|
| 883 | { |
---|
| 884 | lastNZPosInCG = n; |
---|
| 885 | break; |
---|
| 886 | } |
---|
| 887 | } |
---|
| 888 | |
---|
| 889 | for(n = 0; n <SCAN_SET_SIZE; n++ ) |
---|
| 890 | { |
---|
| 891 | if( pQCoef[ scan[ n + subPos ]] ) |
---|
| 892 | { |
---|
| 893 | firstNZPosInCG = n; |
---|
| 894 | break; |
---|
| 895 | } |
---|
| 896 | } |
---|
| 897 | |
---|
| 898 | for(n = firstNZPosInCG; n <=lastNZPosInCG; n++ ) |
---|
| 899 | { |
---|
| 900 | absSum += pQCoef[ scan[ n + subPos ]]; |
---|
| 901 | } |
---|
| 902 | |
---|
| 903 | if(lastNZPosInCG>=0 && lastCG==-1) |
---|
| 904 | { |
---|
| 905 | lastCG = 1 ; |
---|
| 906 | } |
---|
| 907 | |
---|
| 908 | if( lastNZPosInCG-firstNZPosInCG>=SBH_THRESHOLD ) |
---|
| 909 | { |
---|
| 910 | UInt signbit = (pQCoef[scan[subPos+firstNZPosInCG]]>0?0:1) ; |
---|
| 911 | if( signbit!=(absSum&0x1) ) //compare signbit with sum_parity |
---|
| 912 | { |
---|
| 913 | Int minCostInc = MAX_INT, minPos =-1, finalChange=0, curCost=MAX_INT, curChange=0; |
---|
| 914 | |
---|
| 915 | for( n = (lastCG==1?lastNZPosInCG:SCAN_SET_SIZE-1) ; n >= 0; --n ) |
---|
| 916 | { |
---|
| 917 | UInt blkPos = scan[ n+subPos ]; |
---|
| 918 | if(pQCoef[ blkPos ] != 0 ) |
---|
| 919 | { |
---|
| 920 | if(deltaU[blkPos]>0) |
---|
| 921 | { |
---|
| 922 | curCost = - deltaU[blkPos]; |
---|
| 923 | curChange=1 ; |
---|
| 924 | } |
---|
| 925 | else |
---|
| 926 | { |
---|
| 927 | //curChange =-1; |
---|
| 928 | if(n==firstNZPosInCG && abs(pQCoef[blkPos])==1) |
---|
| 929 | { |
---|
| 930 | curCost=MAX_INT ; |
---|
| 931 | } |
---|
| 932 | else |
---|
| 933 | { |
---|
| 934 | curCost = deltaU[blkPos]; |
---|
| 935 | curChange =-1; |
---|
| 936 | } |
---|
| 937 | } |
---|
| 938 | } |
---|
| 939 | else |
---|
| 940 | { |
---|
| 941 | if(n<firstNZPosInCG) |
---|
| 942 | { |
---|
| 943 | UInt thisSignBit = (pCoef[blkPos]>=0?0:1); |
---|
| 944 | if(thisSignBit != signbit ) |
---|
| 945 | { |
---|
| 946 | curCost = MAX_INT; |
---|
| 947 | } |
---|
| 948 | else |
---|
| 949 | { |
---|
| 950 | curCost = - (deltaU[blkPos]) ; |
---|
| 951 | curChange = 1 ; |
---|
| 952 | } |
---|
| 953 | } |
---|
| 954 | else |
---|
| 955 | { |
---|
| 956 | curCost = - (deltaU[blkPos]) ; |
---|
| 957 | curChange = 1 ; |
---|
| 958 | } |
---|
| 959 | } |
---|
| 960 | |
---|
| 961 | if( curCost<minCostInc) |
---|
| 962 | { |
---|
| 963 | minCostInc = curCost ; |
---|
| 964 | finalChange = curChange ; |
---|
| 965 | minPos = blkPos ; |
---|
| 966 | } |
---|
| 967 | } //CG loop |
---|
| 968 | |
---|
| 969 | if(pQCoef[minPos] == 32767 || pQCoef[minPos] == -32768) |
---|
| 970 | { |
---|
| 971 | finalChange = -1; |
---|
| 972 | } |
---|
| 973 | |
---|
| 974 | if(pCoef[minPos]>=0) |
---|
| 975 | { |
---|
| 976 | pQCoef[minPos] += finalChange ; |
---|
| 977 | } |
---|
| 978 | else |
---|
| 979 | { |
---|
| 980 | pQCoef[minPos] -= finalChange ; |
---|
| 981 | } |
---|
| 982 | } // Hide |
---|
| 983 | } |
---|
| 984 | if(lastCG==1) |
---|
| 985 | { |
---|
| 986 | lastCG=0 ; |
---|
| 987 | } |
---|
| 988 | } // TU loop |
---|
| 989 | |
---|
| 990 | return; |
---|
| 991 | } |
---|
| 992 | |
---|
| 993 | Void TComTrQuant::xQuant( TComDataCU* pcCU, |
---|
| 994 | Int* pSrc, |
---|
| 995 | TCoeff* pDes, |
---|
| 996 | #if ADAPTIVE_QP_SELECTION |
---|
| 997 | Int*& pArlDes, |
---|
| 998 | #endif |
---|
| 999 | Int iWidth, |
---|
| 1000 | Int iHeight, |
---|
| 1001 | UInt& uiAcSum, |
---|
| 1002 | TextType eTType, |
---|
| 1003 | UInt uiAbsPartIdx ) |
---|
| 1004 | { |
---|
| 1005 | Int* piCoef = pSrc; |
---|
| 1006 | TCoeff* piQCoef = pDes; |
---|
| 1007 | #if ADAPTIVE_QP_SELECTION |
---|
| 1008 | Int* piArlCCoef = pArlDes; |
---|
| 1009 | #endif |
---|
| 1010 | Int iAdd = 0; |
---|
| 1011 | |
---|
| 1012 | Bool useRDOQ = pcCU->getTransformSkip(uiAbsPartIdx,eTType) ? m_useRDOQTS:m_useRDOQ; |
---|
| 1013 | if ( useRDOQ && (eTType == TEXT_LUMA || RDOQ_CHROMA)) |
---|
| 1014 | { |
---|
| 1015 | #if ADAPTIVE_QP_SELECTION |
---|
| 1016 | xRateDistOptQuant( pcCU, piCoef, pDes, pArlDes, iWidth, iHeight, uiAcSum, eTType, uiAbsPartIdx ); |
---|
| 1017 | #else |
---|
| 1018 | xRateDistOptQuant( pcCU, piCoef, pDes, iWidth, iHeight, uiAcSum, eTType, uiAbsPartIdx ); |
---|
| 1019 | #endif |
---|
| 1020 | } |
---|
| 1021 | else |
---|
| 1022 | { |
---|
| 1023 | const UInt log2BlockSize = g_aucConvertToBit[ iWidth ] + 2; |
---|
| 1024 | |
---|
| 1025 | UInt scanIdx = pcCU->getCoefScanIdx(uiAbsPartIdx, iWidth, eTType==TEXT_LUMA, pcCU->isIntra(uiAbsPartIdx)); |
---|
| 1026 | const UInt *scan = g_auiSigLastScan[ scanIdx ][ log2BlockSize - 1 ]; |
---|
| 1027 | |
---|
| 1028 | Int deltaU[32*32] ; |
---|
| 1029 | |
---|
| 1030 | #if ADAPTIVE_QP_SELECTION |
---|
| 1031 | QpParam cQpBase; |
---|
| 1032 | Int iQpBase = pcCU->getSlice()->getSliceQpBase(); |
---|
| 1033 | |
---|
| 1034 | Int qpScaled; |
---|
| 1035 | Int qpBDOffset = (eTType == TEXT_LUMA)? pcCU->getSlice()->getSPS()->getQpBDOffsetY() : pcCU->getSlice()->getSPS()->getQpBDOffsetC(); |
---|
| 1036 | |
---|
| 1037 | if(eTType == TEXT_LUMA) |
---|
| 1038 | { |
---|
| 1039 | qpScaled = iQpBase + qpBDOffset; |
---|
| 1040 | } |
---|
| 1041 | else |
---|
| 1042 | { |
---|
| 1043 | Int chromaQPOffset; |
---|
| 1044 | if(eTType == TEXT_CHROMA_U) |
---|
| 1045 | { |
---|
| 1046 | chromaQPOffset = pcCU->getSlice()->getPPS()->getChromaCbQpOffset() + pcCU->getSlice()->getSliceQpDeltaCb(); |
---|
| 1047 | } |
---|
| 1048 | else |
---|
| 1049 | { |
---|
| 1050 | chromaQPOffset = pcCU->getSlice()->getPPS()->getChromaCrQpOffset() + pcCU->getSlice()->getSliceQpDeltaCr(); |
---|
| 1051 | } |
---|
| 1052 | iQpBase = iQpBase + chromaQPOffset; |
---|
| 1053 | |
---|
| 1054 | qpScaled = Clip3( -qpBDOffset, 57, iQpBase); |
---|
| 1055 | |
---|
| 1056 | if(qpScaled < 0) |
---|
| 1057 | { |
---|
| 1058 | qpScaled = qpScaled + qpBDOffset; |
---|
| 1059 | } |
---|
| 1060 | else |
---|
| 1061 | { |
---|
| 1062 | qpScaled = g_aucChromaScale[ qpScaled ] + qpBDOffset; |
---|
| 1063 | } |
---|
| 1064 | } |
---|
| 1065 | cQpBase.setQpParam(qpScaled); |
---|
| 1066 | #endif |
---|
| 1067 | |
---|
| 1068 | UInt uiLog2TrSize = g_aucConvertToBit[ iWidth ] + 2; |
---|
| 1069 | Int scalingListType = (pcCU->isIntra(uiAbsPartIdx) ? 0 : 3) + g_eTTable[(Int)eTType]; |
---|
| 1070 | assert(scalingListType < 6); |
---|
| 1071 | Int *piQuantCoeff = 0; |
---|
| 1072 | piQuantCoeff = getQuantCoeff(scalingListType,m_cQP.m_iRem,uiLog2TrSize-2); |
---|
| 1073 | |
---|
| 1074 | UInt uiBitDepth = eTType == TEXT_LUMA ? g_bitDepthY : g_bitDepthC; |
---|
| 1075 | Int iTransformShift = MAX_TR_DYNAMIC_RANGE - uiBitDepth - uiLog2TrSize; // Represents scaling through forward transform |
---|
| 1076 | |
---|
| 1077 | #if ADAPTIVE_QP_SELECTION |
---|
| 1078 | Int iQBits = QUANT_SHIFT + cQpBase.m_iPer + iTransformShift; |
---|
| 1079 | iAdd = (pcCU->getSlice()->getSliceType()==I_SLICE ? 171 : 85) << (iQBits-9); |
---|
| 1080 | Int iQBitsC = QUANT_SHIFT + cQpBase.m_iPer + iTransformShift - ARL_C_PRECISION; |
---|
| 1081 | Int iAddC = 1 << (iQBitsC-1); |
---|
| 1082 | #else |
---|
| 1083 | Int iQBits = QUANT_SHIFT + m_cQP.m_iPer + iTransformShift; // Right shift of non-RDOQ quantizer; level = (coeff*uiQ + offset)>>q_bits |
---|
| 1084 | iAdd = (pcCU->getSlice()->getSliceType()==I_SLICE ? 171 : 85) << (iQBits-9); |
---|
| 1085 | #endif |
---|
| 1086 | |
---|
| 1087 | Int qBits8 = iQBits-8; |
---|
| 1088 | for( Int n = 0; n < iWidth*iHeight; n++ ) |
---|
| 1089 | { |
---|
| 1090 | Int iLevel; |
---|
| 1091 | Int iSign; |
---|
| 1092 | UInt uiBlockPos = n; |
---|
| 1093 | iLevel = piCoef[uiBlockPos]; |
---|
| 1094 | iSign = (iLevel < 0 ? -1: 1); |
---|
| 1095 | |
---|
| 1096 | #if ADAPTIVE_QP_SELECTION |
---|
| 1097 | Int64 tmpLevel = (Int64)abs(iLevel) * piQuantCoeff[uiBlockPos]; |
---|
| 1098 | if( m_bUseAdaptQpSelect ) |
---|
| 1099 | { |
---|
| 1100 | piArlCCoef[uiBlockPos] = (Int)((tmpLevel + iAddC ) >> iQBitsC); |
---|
| 1101 | } |
---|
| 1102 | iLevel = (Int)((tmpLevel + iAdd ) >> iQBits); |
---|
| 1103 | deltaU[uiBlockPos] = (Int)((tmpLevel - (iLevel<<iQBits) )>> qBits8); |
---|
| 1104 | #else |
---|
| 1105 | iLevel = ((Int64)abs(iLevel) * piQuantCoeff[uiBlockPos] + iAdd ) >> iQBits; |
---|
| 1106 | deltaU[uiBlockPos] = (Int)( ((Int64)abs(piCoef[uiBlockPos]) * piQuantCoeff[uiBlockPos] - (iLevel<<iQBits) )>> qBits8 ); |
---|
| 1107 | #endif |
---|
| 1108 | uiAcSum += iLevel; |
---|
| 1109 | iLevel *= iSign; |
---|
| 1110 | piQCoef[uiBlockPos] = Clip3( -32768, 32767, iLevel ); |
---|
| 1111 | } // for n |
---|
| 1112 | if( pcCU->getSlice()->getPPS()->getSignHideFlag() ) |
---|
| 1113 | { |
---|
| 1114 | if(uiAcSum>=2) |
---|
| 1115 | { |
---|
| 1116 | signBitHidingHDQ( piQCoef, piCoef, scan, deltaU, iWidth, iHeight ) ; |
---|
| 1117 | } |
---|
| 1118 | } |
---|
| 1119 | } //if RDOQ |
---|
| 1120 | //return; |
---|
| 1121 | |
---|
| 1122 | } |
---|
| 1123 | |
---|
| 1124 | Void TComTrQuant::xDeQuant(Int bitDepth, const TCoeff* pSrc, Int* pDes, Int iWidth, Int iHeight, Int scalingListType ) |
---|
| 1125 | { |
---|
| 1126 | |
---|
| 1127 | const TCoeff* piQCoef = pSrc; |
---|
| 1128 | Int* piCoef = pDes; |
---|
| 1129 | |
---|
| 1130 | if ( iWidth > (Int)m_uiMaxTrSize ) |
---|
| 1131 | { |
---|
| 1132 | iWidth = m_uiMaxTrSize; |
---|
| 1133 | iHeight = m_uiMaxTrSize; |
---|
| 1134 | } |
---|
| 1135 | |
---|
| 1136 | Int iShift,iAdd,iCoeffQ; |
---|
| 1137 | UInt uiLog2TrSize = g_aucConvertToBit[ iWidth ] + 2; |
---|
| 1138 | |
---|
| 1139 | Int iTransformShift = MAX_TR_DYNAMIC_RANGE - bitDepth - uiLog2TrSize; |
---|
| 1140 | |
---|
| 1141 | iShift = QUANT_IQUANT_SHIFT - QUANT_SHIFT - iTransformShift; |
---|
| 1142 | |
---|
| 1143 | TCoeff clipQCoef; |
---|
| 1144 | |
---|
| 1145 | if(getUseScalingList()) |
---|
| 1146 | { |
---|
| 1147 | iShift += 4; |
---|
| 1148 | Int *piDequantCoef = getDequantCoeff(scalingListType,m_cQP.m_iRem,uiLog2TrSize-2); |
---|
| 1149 | |
---|
| 1150 | if(iShift > m_cQP.m_iPer) |
---|
| 1151 | { |
---|
| 1152 | iAdd = 1 << (iShift - m_cQP.m_iPer - 1); |
---|
| 1153 | |
---|
| 1154 | for( Int n = 0; n < iWidth*iHeight; n++ ) |
---|
| 1155 | { |
---|
| 1156 | clipQCoef = Clip3( -32768, 32767, piQCoef[n] ); |
---|
| 1157 | iCoeffQ = ((clipQCoef * piDequantCoef[n]) + iAdd ) >> (iShift - m_cQP.m_iPer); |
---|
| 1158 | piCoef[n] = Clip3(-32768,32767,iCoeffQ); |
---|
| 1159 | } |
---|
| 1160 | } |
---|
| 1161 | else |
---|
| 1162 | { |
---|
| 1163 | for( Int n = 0; n < iWidth*iHeight; n++ ) |
---|
| 1164 | { |
---|
| 1165 | clipQCoef = Clip3( -32768, 32767, piQCoef[n] ); |
---|
| 1166 | iCoeffQ = Clip3( -32768, 32767, clipQCoef * piDequantCoef[n] ); // Clip to avoid possible overflow in following shift left operation |
---|
| 1167 | piCoef[n] = Clip3( -32768, 32767, iCoeffQ << ( m_cQP.m_iPer - iShift ) ); |
---|
| 1168 | } |
---|
| 1169 | } |
---|
| 1170 | } |
---|
| 1171 | else |
---|
| 1172 | { |
---|
| 1173 | iAdd = 1 << (iShift-1); |
---|
| 1174 | Int scale = g_invQuantScales[m_cQP.m_iRem] << m_cQP.m_iPer; |
---|
| 1175 | |
---|
| 1176 | for( Int n = 0; n < iWidth*iHeight; n++ ) |
---|
| 1177 | { |
---|
| 1178 | clipQCoef = Clip3( -32768, 32767, piQCoef[n] ); |
---|
| 1179 | iCoeffQ = ( clipQCoef * scale + iAdd ) >> iShift; |
---|
| 1180 | piCoef[n] = Clip3(-32768,32767,iCoeffQ); |
---|
| 1181 | } |
---|
| 1182 | } |
---|
| 1183 | } |
---|
| 1184 | |
---|
| 1185 | Void TComTrQuant::init( UInt uiMaxTrSize, |
---|
| 1186 | Bool bUseRDOQ, |
---|
| 1187 | Bool bUseRDOQTS, |
---|
| 1188 | Bool bEnc, Bool useTransformSkipFast |
---|
| 1189 | #if ADAPTIVE_QP_SELECTION |
---|
| 1190 | , Bool bUseAdaptQpSelect |
---|
| 1191 | #endif |
---|
| 1192 | ) |
---|
| 1193 | { |
---|
| 1194 | m_uiMaxTrSize = uiMaxTrSize; |
---|
| 1195 | m_bEnc = bEnc; |
---|
| 1196 | m_useRDOQ = bUseRDOQ; |
---|
| 1197 | m_useRDOQTS = bUseRDOQTS; |
---|
| 1198 | #if ADAPTIVE_QP_SELECTION |
---|
| 1199 | m_bUseAdaptQpSelect = bUseAdaptQpSelect; |
---|
| 1200 | #endif |
---|
| 1201 | m_useTransformSkipFast = useTransformSkipFast; |
---|
| 1202 | } |
---|
| 1203 | |
---|
| 1204 | Void TComTrQuant::transformNxN( TComDataCU* pcCU, |
---|
| 1205 | Pel* pcResidual, |
---|
| 1206 | UInt uiStride, |
---|
| 1207 | TCoeff* rpcCoeff, |
---|
| 1208 | #if ADAPTIVE_QP_SELECTION |
---|
| 1209 | Int*& rpcArlCoeff, |
---|
| 1210 | #endif |
---|
| 1211 | UInt uiWidth, |
---|
| 1212 | UInt uiHeight, |
---|
| 1213 | UInt& uiAbsSum, |
---|
| 1214 | TextType eTType, |
---|
| 1215 | UInt uiAbsPartIdx, |
---|
| 1216 | Bool useTransformSkip |
---|
| 1217 | ) |
---|
| 1218 | { |
---|
| 1219 | if (pcCU->getCUTransquantBypass(uiAbsPartIdx)) |
---|
| 1220 | { |
---|
| 1221 | uiAbsSum=0; |
---|
| 1222 | for (UInt k = 0; k<uiHeight; k++) |
---|
| 1223 | { |
---|
| 1224 | for (UInt j = 0; j<uiWidth; j++) |
---|
| 1225 | { |
---|
| 1226 | rpcCoeff[k*uiWidth+j]= pcResidual[k*uiStride+j]; |
---|
| 1227 | uiAbsSum += abs(pcResidual[k*uiStride+j]); |
---|
| 1228 | } |
---|
| 1229 | } |
---|
| 1230 | return; |
---|
| 1231 | } |
---|
| 1232 | UInt uiMode; //luma intra pred |
---|
| 1233 | if(eTType == TEXT_LUMA && pcCU->getPredictionMode(uiAbsPartIdx) == MODE_INTRA ) |
---|
| 1234 | { |
---|
| 1235 | uiMode = pcCU->getLumaIntraDir( uiAbsPartIdx ); |
---|
| 1236 | } |
---|
| 1237 | else |
---|
| 1238 | { |
---|
| 1239 | uiMode = REG_DCT; |
---|
| 1240 | } |
---|
| 1241 | |
---|
| 1242 | uiAbsSum = 0; |
---|
| 1243 | assert( (pcCU->getSlice()->getSPS()->getMaxTrSize() >= uiWidth) ); |
---|
| 1244 | Int bitDepth = eTType == TEXT_LUMA ? g_bitDepthY : g_bitDepthC; |
---|
| 1245 | if(useTransformSkip) |
---|
| 1246 | { |
---|
| 1247 | xTransformSkip(bitDepth, pcResidual, uiStride, m_plTempCoeff, uiWidth, uiHeight ); |
---|
| 1248 | } |
---|
| 1249 | else |
---|
| 1250 | { |
---|
| 1251 | xT(bitDepth, uiMode, pcResidual, uiStride, m_plTempCoeff, uiWidth, uiHeight ); |
---|
| 1252 | } |
---|
| 1253 | xQuant( pcCU, m_plTempCoeff, rpcCoeff, |
---|
| 1254 | #if ADAPTIVE_QP_SELECTION |
---|
| 1255 | rpcArlCoeff, |
---|
| 1256 | #endif |
---|
| 1257 | uiWidth, uiHeight, uiAbsSum, eTType, uiAbsPartIdx ); |
---|
| 1258 | } |
---|
| 1259 | |
---|
| 1260 | Void TComTrQuant::invtransformNxN( Bool transQuantBypass, TextType eText, UInt uiMode,Pel* rpcResidual, UInt uiStride, TCoeff* pcCoeff, UInt uiWidth, UInt uiHeight, Int scalingListType, Bool useTransformSkip ) |
---|
| 1261 | { |
---|
| 1262 | if(transQuantBypass) |
---|
| 1263 | { |
---|
| 1264 | for (UInt k = 0; k<uiHeight; k++) |
---|
| 1265 | { |
---|
| 1266 | for (UInt j = 0; j<uiWidth; j++) |
---|
| 1267 | { |
---|
| 1268 | rpcResidual[k*uiStride+j] = pcCoeff[k*uiWidth+j]; |
---|
| 1269 | } |
---|
| 1270 | } |
---|
| 1271 | return; |
---|
| 1272 | } |
---|
| 1273 | Int bitDepth = eText == TEXT_LUMA ? g_bitDepthY : g_bitDepthC; |
---|
| 1274 | xDeQuant(bitDepth, pcCoeff, m_plTempCoeff, uiWidth, uiHeight, scalingListType); |
---|
| 1275 | if(useTransformSkip == true) |
---|
| 1276 | { |
---|
| 1277 | xITransformSkip(bitDepth, m_plTempCoeff, rpcResidual, uiStride, uiWidth, uiHeight ); |
---|
| 1278 | } |
---|
| 1279 | else |
---|
| 1280 | { |
---|
| 1281 | xIT(bitDepth, uiMode, m_plTempCoeff, rpcResidual, uiStride, uiWidth, uiHeight ); |
---|
| 1282 | } |
---|
| 1283 | } |
---|
| 1284 | |
---|
| 1285 | Void TComTrQuant::invRecurTransformNxN( TComDataCU* pcCU, UInt uiAbsPartIdx, TextType eTxt, Pel* rpcResidual, UInt uiAddr, UInt uiStride, UInt uiWidth, UInt uiHeight, UInt uiMaxTrMode, UInt uiTrMode, TCoeff* rpcCoeff ) |
---|
| 1286 | { |
---|
| 1287 | if( !pcCU->getCbf(uiAbsPartIdx, eTxt, uiTrMode) ) |
---|
| 1288 | { |
---|
| 1289 | return; |
---|
| 1290 | } |
---|
| 1291 | const UInt stopTrMode = pcCU->getTransformIdx( uiAbsPartIdx ); |
---|
| 1292 | |
---|
| 1293 | if( uiTrMode == stopTrMode ) |
---|
| 1294 | { |
---|
| 1295 | UInt uiDepth = pcCU->getDepth( uiAbsPartIdx ) + uiTrMode; |
---|
| 1296 | UInt uiLog2TrSize = g_aucConvertToBit[ pcCU->getSlice()->getSPS()->getMaxCUWidth() >> uiDepth ] + 2; |
---|
| 1297 | if( eTxt != TEXT_LUMA && uiLog2TrSize == 2 ) |
---|
| 1298 | { |
---|
| 1299 | UInt uiQPDiv = pcCU->getPic()->getNumPartInCU() >> ( ( uiDepth - 1 ) << 1 ); |
---|
| 1300 | if( ( uiAbsPartIdx % uiQPDiv ) != 0 ) |
---|
| 1301 | { |
---|
| 1302 | return; |
---|
| 1303 | } |
---|
| 1304 | uiWidth <<= 1; |
---|
| 1305 | uiHeight <<= 1; |
---|
| 1306 | } |
---|
| 1307 | Pel* pResi = rpcResidual + uiAddr; |
---|
| 1308 | Int scalingListType = (pcCU->isIntra(uiAbsPartIdx) ? 0 : 3) + g_eTTable[(Int)eTxt]; |
---|
| 1309 | assert(scalingListType < 6); |
---|
| 1310 | invtransformNxN( pcCU->getCUTransquantBypass(uiAbsPartIdx), eTxt, REG_DCT, pResi, uiStride, rpcCoeff, uiWidth, uiHeight, scalingListType, pcCU->getTransformSkip(uiAbsPartIdx, eTxt) ); |
---|
| 1311 | } |
---|
| 1312 | else |
---|
| 1313 | { |
---|
| 1314 | uiTrMode++; |
---|
| 1315 | uiWidth >>= 1; |
---|
| 1316 | uiHeight >>= 1; |
---|
| 1317 | Int trWidth = uiWidth, trHeight = uiHeight; |
---|
| 1318 | UInt uiAddrOffset = trHeight * uiStride; |
---|
| 1319 | UInt uiCoefOffset = trWidth * trHeight; |
---|
| 1320 | UInt uiPartOffset = pcCU->getTotalNumPart() >> ( uiTrMode << 1 ); |
---|
| 1321 | { |
---|
| 1322 | invRecurTransformNxN( pcCU, uiAbsPartIdx, eTxt, rpcResidual, uiAddr , uiStride, uiWidth, uiHeight, uiMaxTrMode, uiTrMode, rpcCoeff ); rpcCoeff += uiCoefOffset; uiAbsPartIdx += uiPartOffset; |
---|
| 1323 | invRecurTransformNxN( pcCU, uiAbsPartIdx, eTxt, rpcResidual, uiAddr + trWidth , uiStride, uiWidth, uiHeight, uiMaxTrMode, uiTrMode, rpcCoeff ); rpcCoeff += uiCoefOffset; uiAbsPartIdx += uiPartOffset; |
---|
| 1324 | invRecurTransformNxN( pcCU, uiAbsPartIdx, eTxt, rpcResidual, uiAddr + uiAddrOffset , uiStride, uiWidth, uiHeight, uiMaxTrMode, uiTrMode, rpcCoeff ); rpcCoeff += uiCoefOffset; uiAbsPartIdx += uiPartOffset; |
---|
| 1325 | invRecurTransformNxN( pcCU, uiAbsPartIdx, eTxt, rpcResidual, uiAddr + uiAddrOffset + trWidth, uiStride, uiWidth, uiHeight, uiMaxTrMode, uiTrMode, rpcCoeff ); |
---|
| 1326 | } |
---|
| 1327 | } |
---|
| 1328 | } |
---|
| 1329 | |
---|
| 1330 | // ------------------------------------------------------------------------------------------------ |
---|
| 1331 | // Logical transform |
---|
| 1332 | // ------------------------------------------------------------------------------------------------ |
---|
| 1333 | |
---|
| 1334 | /** Wrapper function between HM interface and core NxN forward transform (2D) |
---|
| 1335 | * \param piBlkResi input data (residual) |
---|
| 1336 | * \param psCoeff output data (transform coefficients) |
---|
| 1337 | * \param uiStride stride of input residual data |
---|
| 1338 | * \param iSize transform size (iSize x iSize) |
---|
| 1339 | * \param uiMode is Intra Prediction mode used in Mode-Dependent DCT/DST only |
---|
| 1340 | */ |
---|
| 1341 | Void TComTrQuant::xT(Int bitDepth, UInt uiMode, Pel* piBlkResi, UInt uiStride, Int* psCoeff, Int iWidth, Int iHeight ) |
---|
| 1342 | { |
---|
| 1343 | #if MATRIX_MULT |
---|
| 1344 | Int iSize = iWidth; |
---|
| 1345 | xTr(bitDepth, piBlkResi,psCoeff,uiStride,(UInt)iSize,uiMode); |
---|
| 1346 | #else |
---|
| 1347 | Int j; |
---|
| 1348 | Short block[ 32 * 32 ]; |
---|
| 1349 | Short coeff[ 32 * 32 ]; |
---|
| 1350 | for (j = 0; j < iHeight; j++) |
---|
| 1351 | { |
---|
| 1352 | memcpy( block + j * iWidth, piBlkResi + j * uiStride, iWidth * sizeof( Short ) ); |
---|
| 1353 | } |
---|
| 1354 | xTrMxN(bitDepth, block, coeff, iWidth, iHeight, uiMode ); |
---|
| 1355 | for ( j = 0; j < iHeight * iWidth; j++ ) |
---|
| 1356 | { |
---|
| 1357 | psCoeff[ j ] = coeff[ j ]; |
---|
| 1358 | } |
---|
| 1359 | #endif |
---|
| 1360 | } |
---|
| 1361 | |
---|
| 1362 | |
---|
| 1363 | /** Wrapper function between HM interface and core NxN inverse transform (2D) |
---|
| 1364 | * \param plCoef input data (transform coefficients) |
---|
| 1365 | * \param pResidual output data (residual) |
---|
| 1366 | * \param uiStride stride of input residual data |
---|
| 1367 | * \param iSize transform size (iSize x iSize) |
---|
| 1368 | * \param uiMode is Intra Prediction mode used in Mode-Dependent DCT/DST only |
---|
| 1369 | */ |
---|
| 1370 | Void TComTrQuant::xIT(Int bitDepth, UInt uiMode, Int* plCoef, Pel* pResidual, UInt uiStride, Int iWidth, Int iHeight ) |
---|
| 1371 | { |
---|
| 1372 | #if MATRIX_MULT |
---|
| 1373 | Int iSize = iWidth; |
---|
| 1374 | xITr(bitDepth, plCoef,pResidual,uiStride,(UInt)iSize,uiMode); |
---|
| 1375 | #else |
---|
| 1376 | Int j; |
---|
| 1377 | { |
---|
| 1378 | Short block[ 32 * 32 ]; |
---|
| 1379 | Short coeff[ 32 * 32 ]; |
---|
| 1380 | for ( j = 0; j < iHeight * iWidth; j++ ) |
---|
| 1381 | { |
---|
| 1382 | coeff[j] = (Short)plCoef[j]; |
---|
| 1383 | } |
---|
| 1384 | xITrMxN(bitDepth, coeff, block, iWidth, iHeight, uiMode ); |
---|
| 1385 | { |
---|
| 1386 | for ( j = 0; j < iHeight; j++ ) |
---|
| 1387 | { |
---|
| 1388 | memcpy( pResidual + j * uiStride, block + j * iWidth, iWidth * sizeof(Short) ); |
---|
| 1389 | } |
---|
| 1390 | } |
---|
| 1391 | return ; |
---|
| 1392 | } |
---|
| 1393 | #endif |
---|
| 1394 | } |
---|
| 1395 | |
---|
| 1396 | /** Wrapper function between HM interface and core 4x4 transform skipping |
---|
| 1397 | * \param piBlkResi input data (residual) |
---|
| 1398 | * \param psCoeff output data (transform coefficients) |
---|
| 1399 | * \param uiStride stride of input residual data |
---|
| 1400 | * \param iSize transform size (iSize x iSize) |
---|
| 1401 | */ |
---|
| 1402 | Void TComTrQuant::xTransformSkip(Int bitDepth, Pel* piBlkResi, UInt uiStride, Int* psCoeff, Int width, Int height ) |
---|
| 1403 | { |
---|
| 1404 | assert( width == height ); |
---|
| 1405 | UInt uiLog2TrSize = g_aucConvertToBit[ width ] + 2; |
---|
| 1406 | Int shift = MAX_TR_DYNAMIC_RANGE - bitDepth - uiLog2TrSize; |
---|
| 1407 | UInt transformSkipShift; |
---|
| 1408 | Int j,k; |
---|
| 1409 | if(shift >= 0) |
---|
| 1410 | { |
---|
| 1411 | transformSkipShift = shift; |
---|
| 1412 | for (j = 0; j < height; j++) |
---|
| 1413 | { |
---|
| 1414 | for(k = 0; k < width; k ++) |
---|
| 1415 | { |
---|
| 1416 | psCoeff[j*height + k] = piBlkResi[j * uiStride + k] << transformSkipShift; |
---|
| 1417 | } |
---|
| 1418 | } |
---|
| 1419 | } |
---|
| 1420 | else |
---|
| 1421 | { |
---|
| 1422 | //The case when uiBitDepth > 13 |
---|
| 1423 | Int offset; |
---|
| 1424 | transformSkipShift = -shift; |
---|
| 1425 | offset = (1 << (transformSkipShift - 1)); |
---|
| 1426 | for (j = 0; j < height; j++) |
---|
| 1427 | { |
---|
| 1428 | for(k = 0; k < width; k ++) |
---|
| 1429 | { |
---|
| 1430 | psCoeff[j*height + k] = (piBlkResi[j * uiStride + k] + offset) >> transformSkipShift; |
---|
| 1431 | } |
---|
| 1432 | } |
---|
| 1433 | } |
---|
| 1434 | } |
---|
| 1435 | |
---|
| 1436 | /** Wrapper function between HM interface and core NxN transform skipping |
---|
| 1437 | * \param plCoef input data (coefficients) |
---|
| 1438 | * \param pResidual output data (residual) |
---|
| 1439 | * \param uiStride stride of input residual data |
---|
| 1440 | * \param iSize transform size (iSize x iSize) |
---|
| 1441 | */ |
---|
| 1442 | Void TComTrQuant::xITransformSkip(Int bitDepth, Int* plCoef, Pel* pResidual, UInt uiStride, Int width, Int height ) |
---|
| 1443 | { |
---|
| 1444 | assert( width == height ); |
---|
| 1445 | UInt uiLog2TrSize = g_aucConvertToBit[ width ] + 2; |
---|
| 1446 | Int shift = MAX_TR_DYNAMIC_RANGE - bitDepth - uiLog2TrSize; |
---|
| 1447 | UInt transformSkipShift; |
---|
| 1448 | Int j,k; |
---|
| 1449 | if(shift > 0) |
---|
| 1450 | { |
---|
| 1451 | Int offset; |
---|
| 1452 | transformSkipShift = shift; |
---|
| 1453 | offset = (1 << (transformSkipShift -1)); |
---|
| 1454 | for ( j = 0; j < height; j++ ) |
---|
| 1455 | { |
---|
| 1456 | for(k = 0; k < width; k ++) |
---|
| 1457 | { |
---|
| 1458 | pResidual[j * uiStride + k] = (plCoef[j*width+k] + offset) >> transformSkipShift; |
---|
| 1459 | } |
---|
| 1460 | } |
---|
| 1461 | } |
---|
| 1462 | else |
---|
| 1463 | { |
---|
| 1464 | //The case when uiBitDepth >= 13 |
---|
| 1465 | transformSkipShift = - shift; |
---|
| 1466 | for ( j = 0; j < height; j++ ) |
---|
| 1467 | { |
---|
| 1468 | for(k = 0; k < width; k ++) |
---|
| 1469 | { |
---|
| 1470 | pResidual[j * uiStride + k] = plCoef[j*width+k] << transformSkipShift; |
---|
| 1471 | } |
---|
| 1472 | } |
---|
| 1473 | } |
---|
| 1474 | } |
---|
| 1475 | |
---|
| 1476 | /** RDOQ with CABAC |
---|
| 1477 | * \param pcCU pointer to coding unit structure |
---|
| 1478 | * \param plSrcCoeff pointer to input buffer |
---|
| 1479 | * \param piDstCoeff reference to pointer to output buffer |
---|
| 1480 | * \param uiWidth block width |
---|
| 1481 | * \param uiHeight block height |
---|
| 1482 | * \param uiAbsSum reference to absolute sum of quantized transform coefficient |
---|
| 1483 | * \param eTType plane type / luminance or chrominance |
---|
| 1484 | * \param uiAbsPartIdx absolute partition index |
---|
| 1485 | * \returns Void |
---|
| 1486 | * Rate distortion optimized quantization for entropy |
---|
| 1487 | * coding engines using probability models like CABAC |
---|
| 1488 | */ |
---|
| 1489 | Void TComTrQuant::xRateDistOptQuant ( TComDataCU* pcCU, |
---|
| 1490 | Int* plSrcCoeff, |
---|
| 1491 | TCoeff* piDstCoeff, |
---|
| 1492 | #if ADAPTIVE_QP_SELECTION |
---|
| 1493 | Int*& piArlDstCoeff, |
---|
| 1494 | #endif |
---|
| 1495 | UInt uiWidth, |
---|
| 1496 | UInt uiHeight, |
---|
| 1497 | UInt& uiAbsSum, |
---|
| 1498 | TextType eTType, |
---|
| 1499 | UInt uiAbsPartIdx ) |
---|
| 1500 | { |
---|
| 1501 | UInt uiLog2TrSize = g_aucConvertToBit[ uiWidth ] + 2; |
---|
| 1502 | |
---|
| 1503 | UInt uiBitDepth = eTType == TEXT_LUMA ? g_bitDepthY : g_bitDepthC; |
---|
| 1504 | Int iTransformShift = MAX_TR_DYNAMIC_RANGE - uiBitDepth - uiLog2TrSize; // Represents scaling through forward transform |
---|
| 1505 | UInt uiGoRiceParam = 0; |
---|
| 1506 | Double d64BlockUncodedCost = 0; |
---|
| 1507 | const UInt uiLog2BlkSize = g_aucConvertToBit[ uiWidth ] + 2; |
---|
| 1508 | const UInt uiMaxNumCoeff = uiWidth * uiHeight; |
---|
| 1509 | Int scalingListType = (pcCU->isIntra(uiAbsPartIdx) ? 0 : 3) + g_eTTable[(Int)eTType]; |
---|
| 1510 | assert(scalingListType < 6); |
---|
| 1511 | |
---|
| 1512 | Int iQBits = QUANT_SHIFT + m_cQP.m_iPer + iTransformShift; // Right shift of non-RDOQ quantizer; level = (coeff*uiQ + offset)>>q_bits |
---|
| 1513 | Double *pdErrScaleOrg = getErrScaleCoeff(scalingListType,uiLog2TrSize-2,m_cQP.m_iRem); |
---|
| 1514 | Int *piQCoefOrg = getQuantCoeff(scalingListType,m_cQP.m_iRem,uiLog2TrSize-2); |
---|
| 1515 | Int *piQCoef = piQCoefOrg; |
---|
| 1516 | Double *pdErrScale = pdErrScaleOrg; |
---|
| 1517 | #if ADAPTIVE_QP_SELECTION |
---|
| 1518 | Int iQBitsC = iQBits - ARL_C_PRECISION; |
---|
| 1519 | Int iAddC = 1 << (iQBitsC-1); |
---|
| 1520 | #endif |
---|
| 1521 | UInt uiScanIdx = pcCU->getCoefScanIdx(uiAbsPartIdx, uiWidth, eTType==TEXT_LUMA, pcCU->isIntra(uiAbsPartIdx)); |
---|
| 1522 | |
---|
| 1523 | #if ADAPTIVE_QP_SELECTION |
---|
| 1524 | memset(piArlDstCoeff, 0, sizeof(Int) * uiMaxNumCoeff); |
---|
| 1525 | #endif |
---|
| 1526 | |
---|
| 1527 | Double pdCostCoeff [ 32 * 32 ]; |
---|
| 1528 | Double pdCostSig [ 32 * 32 ]; |
---|
| 1529 | Double pdCostCoeff0[ 32 * 32 ]; |
---|
| 1530 | ::memset( pdCostCoeff, 0, sizeof(Double) * uiMaxNumCoeff ); |
---|
| 1531 | ::memset( pdCostSig, 0, sizeof(Double) * uiMaxNumCoeff ); |
---|
| 1532 | Int rateIncUp [ 32 * 32 ]; |
---|
| 1533 | Int rateIncDown [ 32 * 32 ]; |
---|
| 1534 | Int sigRateDelta[ 32 * 32 ]; |
---|
| 1535 | Int deltaU [ 32 * 32 ]; |
---|
| 1536 | ::memset( rateIncUp, 0, sizeof(Int) * uiMaxNumCoeff ); |
---|
| 1537 | ::memset( rateIncDown, 0, sizeof(Int) * uiMaxNumCoeff ); |
---|
| 1538 | ::memset( sigRateDelta, 0, sizeof(Int) * uiMaxNumCoeff ); |
---|
| 1539 | ::memset( deltaU, 0, sizeof(Int) * uiMaxNumCoeff ); |
---|
| 1540 | |
---|
| 1541 | const UInt * scanCG; |
---|
| 1542 | { |
---|
| 1543 | scanCG = g_auiSigLastScan[ uiScanIdx ][ uiLog2BlkSize > 3 ? uiLog2BlkSize-2-1 : 0 ]; |
---|
| 1544 | if( uiLog2BlkSize == 3 ) |
---|
| 1545 | { |
---|
| 1546 | scanCG = g_sigLastScan8x8[ uiScanIdx ]; |
---|
| 1547 | } |
---|
| 1548 | else if( uiLog2BlkSize == 5 ) |
---|
| 1549 | { |
---|
| 1550 | scanCG = g_sigLastScanCG32x32; |
---|
| 1551 | } |
---|
| 1552 | } |
---|
| 1553 | const UInt uiCGSize = (1 << MLS_CG_SIZE); // 16 |
---|
| 1554 | Double pdCostCoeffGroupSig[ MLS_GRP_NUM ]; |
---|
| 1555 | UInt uiSigCoeffGroupFlag[ MLS_GRP_NUM ]; |
---|
| 1556 | UInt uiNumBlkSide = uiWidth / MLS_CG_SIZE; |
---|
| 1557 | Int iCGLastScanPos = -1; |
---|
| 1558 | |
---|
| 1559 | UInt uiCtxSet = 0; |
---|
| 1560 | Int c1 = 1; |
---|
| 1561 | Int c2 = 0; |
---|
| 1562 | Double d64BaseCost = 0; |
---|
| 1563 | Int iLastScanPos = -1; |
---|
| 1564 | |
---|
| 1565 | UInt c1Idx = 0; |
---|
| 1566 | UInt c2Idx = 0; |
---|
| 1567 | Int baseLevel; |
---|
| 1568 | |
---|
| 1569 | const UInt *scan = g_auiSigLastScan[ uiScanIdx ][ uiLog2BlkSize - 1 ]; |
---|
| 1570 | |
---|
| 1571 | ::memset( pdCostCoeffGroupSig, 0, sizeof(Double) * MLS_GRP_NUM ); |
---|
| 1572 | ::memset( uiSigCoeffGroupFlag, 0, sizeof(UInt) * MLS_GRP_NUM ); |
---|
| 1573 | |
---|
| 1574 | UInt uiCGNum = uiWidth * uiHeight >> MLS_CG_SIZE; |
---|
| 1575 | Int iScanPos; |
---|
| 1576 | coeffGroupRDStats rdStats; |
---|
| 1577 | |
---|
| 1578 | for (Int iCGScanPos = uiCGNum-1; iCGScanPos >= 0; iCGScanPos--) |
---|
| 1579 | { |
---|
| 1580 | UInt uiCGBlkPos = scanCG[ iCGScanPos ]; |
---|
| 1581 | UInt uiCGPosY = uiCGBlkPos / uiNumBlkSide; |
---|
| 1582 | UInt uiCGPosX = uiCGBlkPos - (uiCGPosY * uiNumBlkSide); |
---|
| 1583 | ::memset( &rdStats, 0, sizeof (coeffGroupRDStats)); |
---|
| 1584 | |
---|
| 1585 | const Int patternSigCtx = TComTrQuant::calcPatternSigCtx(uiSigCoeffGroupFlag, uiCGPosX, uiCGPosY, uiWidth, uiHeight); |
---|
| 1586 | for (Int iScanPosinCG = uiCGSize-1; iScanPosinCG >= 0; iScanPosinCG--) |
---|
| 1587 | { |
---|
| 1588 | iScanPos = iCGScanPos*uiCGSize + iScanPosinCG; |
---|
| 1589 | //===== quantization ===== |
---|
| 1590 | UInt uiBlkPos = scan[iScanPos]; |
---|
| 1591 | // set coeff |
---|
| 1592 | Int uiQ = piQCoef[uiBlkPos]; |
---|
| 1593 | Double dTemp = pdErrScale[uiBlkPos]; |
---|
| 1594 | Int lLevelDouble = plSrcCoeff[ uiBlkPos ]; |
---|
| 1595 | lLevelDouble = (Int)min<Int64>((Int64)abs((Int)lLevelDouble) * uiQ , MAX_INT - (1 << (iQBits - 1))); |
---|
| 1596 | #if ADAPTIVE_QP_SELECTION |
---|
| 1597 | if( m_bUseAdaptQpSelect ) |
---|
| 1598 | { |
---|
| 1599 | piArlDstCoeff[uiBlkPos] = (Int)(( lLevelDouble + iAddC) >> iQBitsC ); |
---|
| 1600 | } |
---|
| 1601 | #endif |
---|
| 1602 | UInt uiMaxAbsLevel = (lLevelDouble + (1 << (iQBits - 1))) >> iQBits; |
---|
| 1603 | |
---|
| 1604 | Double dErr = Double( lLevelDouble ); |
---|
| 1605 | pdCostCoeff0[ iScanPos ] = dErr * dErr * dTemp; |
---|
| 1606 | d64BlockUncodedCost += pdCostCoeff0[ iScanPos ]; |
---|
| 1607 | piDstCoeff[ uiBlkPos ] = uiMaxAbsLevel; |
---|
| 1608 | |
---|
| 1609 | if ( uiMaxAbsLevel > 0 && iLastScanPos < 0 ) |
---|
| 1610 | { |
---|
| 1611 | iLastScanPos = iScanPos; |
---|
| 1612 | uiCtxSet = (iScanPos < SCAN_SET_SIZE || eTType!=TEXT_LUMA) ? 0 : 2; |
---|
| 1613 | iCGLastScanPos = iCGScanPos; |
---|
| 1614 | } |
---|
| 1615 | |
---|
| 1616 | if ( iLastScanPos >= 0 ) |
---|
| 1617 | { |
---|
| 1618 | //===== coefficient level estimation ===== |
---|
| 1619 | UInt uiLevel; |
---|
| 1620 | UInt uiOneCtx = 4 * uiCtxSet + c1; |
---|
| 1621 | UInt uiAbsCtx = uiCtxSet + c2; |
---|
| 1622 | |
---|
| 1623 | if( iScanPos == iLastScanPos ) |
---|
| 1624 | { |
---|
| 1625 | uiLevel = xGetCodedLevel( pdCostCoeff[ iScanPos ], pdCostCoeff0[ iScanPos ], pdCostSig[ iScanPos ], |
---|
| 1626 | lLevelDouble, uiMaxAbsLevel, 0, uiOneCtx, uiAbsCtx, uiGoRiceParam, |
---|
| 1627 | c1Idx, c2Idx, iQBits, dTemp, 1 ); |
---|
| 1628 | } |
---|
| 1629 | else |
---|
| 1630 | { |
---|
| 1631 | UInt uiPosY = uiBlkPos >> uiLog2BlkSize; |
---|
| 1632 | UInt uiPosX = uiBlkPos - ( uiPosY << uiLog2BlkSize ); |
---|
| 1633 | UShort uiCtxSig = getSigCtxInc( patternSigCtx, uiScanIdx, uiPosX, uiPosY, uiLog2BlkSize, eTType ); |
---|
| 1634 | uiLevel = xGetCodedLevel( pdCostCoeff[ iScanPos ], pdCostCoeff0[ iScanPos ], pdCostSig[ iScanPos ], |
---|
| 1635 | lLevelDouble, uiMaxAbsLevel, uiCtxSig, uiOneCtx, uiAbsCtx, uiGoRiceParam, |
---|
| 1636 | c1Idx, c2Idx, iQBits, dTemp, 0 ); |
---|
| 1637 | sigRateDelta[ uiBlkPos ] = m_pcEstBitsSbac->significantBits[ uiCtxSig ][ 1 ] - m_pcEstBitsSbac->significantBits[ uiCtxSig ][ 0 ]; |
---|
| 1638 | } |
---|
| 1639 | deltaU[ uiBlkPos ] = (lLevelDouble - ((Int)uiLevel << iQBits)) >> (iQBits-8); |
---|
| 1640 | if( uiLevel > 0 ) |
---|
| 1641 | { |
---|
| 1642 | Int rateNow = xGetICRate( uiLevel, uiOneCtx, uiAbsCtx, uiGoRiceParam, c1Idx, c2Idx ); |
---|
| 1643 | rateIncUp [ uiBlkPos ] = xGetICRate( uiLevel+1, uiOneCtx, uiAbsCtx, uiGoRiceParam, c1Idx, c2Idx ) - rateNow; |
---|
| 1644 | rateIncDown [ uiBlkPos ] = xGetICRate( uiLevel-1, uiOneCtx, uiAbsCtx, uiGoRiceParam, c1Idx, c2Idx ) - rateNow; |
---|
| 1645 | } |
---|
| 1646 | else // uiLevel == 0 |
---|
| 1647 | { |
---|
| 1648 | rateIncUp [ uiBlkPos ] = m_pcEstBitsSbac->m_greaterOneBits[ uiOneCtx ][ 0 ]; |
---|
| 1649 | } |
---|
| 1650 | piDstCoeff[ uiBlkPos ] = uiLevel; |
---|
| 1651 | d64BaseCost += pdCostCoeff [ iScanPos ]; |
---|
| 1652 | |
---|
| 1653 | |
---|
| 1654 | baseLevel = (c1Idx < C1FLAG_NUMBER) ? (2 + (c2Idx < C2FLAG_NUMBER)) : 1; |
---|
| 1655 | if( uiLevel >= baseLevel ) |
---|
| 1656 | { |
---|
| 1657 | if(uiLevel > 3*(1<<uiGoRiceParam)) |
---|
| 1658 | { |
---|
| 1659 | uiGoRiceParam = min<UInt>(uiGoRiceParam+ 1, 4); |
---|
| 1660 | } |
---|
| 1661 | } |
---|
| 1662 | if ( uiLevel >= 1) |
---|
| 1663 | { |
---|
| 1664 | c1Idx ++; |
---|
| 1665 | } |
---|
| 1666 | |
---|
| 1667 | //===== update bin model ===== |
---|
| 1668 | if( uiLevel > 1 ) |
---|
| 1669 | { |
---|
| 1670 | c1 = 0; |
---|
| 1671 | c2 += (c2 < 2); |
---|
| 1672 | c2Idx ++; |
---|
| 1673 | } |
---|
| 1674 | else if( (c1 < 3) && (c1 > 0) && uiLevel) |
---|
| 1675 | { |
---|
| 1676 | c1++; |
---|
| 1677 | } |
---|
| 1678 | |
---|
| 1679 | //===== context set update ===== |
---|
| 1680 | if( ( iScanPos % SCAN_SET_SIZE == 0 ) && ( iScanPos > 0 ) ) |
---|
| 1681 | { |
---|
| 1682 | c2 = 0; |
---|
| 1683 | uiGoRiceParam = 0; |
---|
| 1684 | |
---|
| 1685 | c1Idx = 0; |
---|
| 1686 | c2Idx = 0; |
---|
| 1687 | uiCtxSet = (iScanPos == SCAN_SET_SIZE || eTType!=TEXT_LUMA) ? 0 : 2; |
---|
| 1688 | if( c1 == 0 ) |
---|
| 1689 | { |
---|
| 1690 | uiCtxSet++; |
---|
| 1691 | } |
---|
| 1692 | c1 = 1; |
---|
| 1693 | } |
---|
| 1694 | } |
---|
| 1695 | else |
---|
| 1696 | { |
---|
| 1697 | d64BaseCost += pdCostCoeff0[ iScanPos ]; |
---|
| 1698 | } |
---|
| 1699 | rdStats.d64SigCost += pdCostSig[ iScanPos ]; |
---|
| 1700 | if (iScanPosinCG == 0 ) |
---|
| 1701 | { |
---|
| 1702 | rdStats.d64SigCost_0 = pdCostSig[ iScanPos ]; |
---|
| 1703 | } |
---|
| 1704 | if (piDstCoeff[ uiBlkPos ] ) |
---|
| 1705 | { |
---|
| 1706 | uiSigCoeffGroupFlag[ uiCGBlkPos ] = 1; |
---|
| 1707 | rdStats.d64CodedLevelandDist += pdCostCoeff[ iScanPos ] - pdCostSig[ iScanPos ]; |
---|
| 1708 | rdStats.d64UncodedDist += pdCostCoeff0[ iScanPos ]; |
---|
| 1709 | if ( iScanPosinCG != 0 ) |
---|
| 1710 | { |
---|
| 1711 | rdStats.iNNZbeforePos0++; |
---|
| 1712 | } |
---|
| 1713 | } |
---|
| 1714 | } //end for (iScanPosinCG) |
---|
| 1715 | |
---|
| 1716 | if (iCGLastScanPos >= 0) |
---|
| 1717 | { |
---|
| 1718 | if( iCGScanPos ) |
---|
| 1719 | { |
---|
| 1720 | if (uiSigCoeffGroupFlag[ uiCGBlkPos ] == 0) |
---|
| 1721 | { |
---|
| 1722 | UInt uiCtxSig = getSigCoeffGroupCtxInc( uiSigCoeffGroupFlag, uiCGPosX, uiCGPosY, uiWidth, uiHeight); |
---|
| 1723 | d64BaseCost += xGetRateSigCoeffGroup(0, uiCtxSig) - rdStats.d64SigCost;; |
---|
| 1724 | pdCostCoeffGroupSig[ iCGScanPos ] = xGetRateSigCoeffGroup(0, uiCtxSig); |
---|
| 1725 | } |
---|
| 1726 | else |
---|
| 1727 | { |
---|
| 1728 | if (iCGScanPos < iCGLastScanPos) //skip the last coefficient group, which will be handled together with last position below. |
---|
| 1729 | { |
---|
| 1730 | if ( rdStats.iNNZbeforePos0 == 0 ) |
---|
| 1731 | { |
---|
| 1732 | d64BaseCost -= rdStats.d64SigCost_0; |
---|
| 1733 | rdStats.d64SigCost -= rdStats.d64SigCost_0; |
---|
| 1734 | } |
---|
| 1735 | // rd-cost if SigCoeffGroupFlag = 0, initialization |
---|
| 1736 | Double d64CostZeroCG = d64BaseCost; |
---|
| 1737 | |
---|
| 1738 | // add SigCoeffGroupFlag cost to total cost |
---|
| 1739 | UInt uiCtxSig = getSigCoeffGroupCtxInc( uiSigCoeffGroupFlag, uiCGPosX, uiCGPosY, uiWidth, uiHeight); |
---|
| 1740 | if (iCGScanPos < iCGLastScanPos) |
---|
| 1741 | { |
---|
| 1742 | d64BaseCost += xGetRateSigCoeffGroup(1, uiCtxSig); |
---|
| 1743 | d64CostZeroCG += xGetRateSigCoeffGroup(0, uiCtxSig); |
---|
| 1744 | pdCostCoeffGroupSig[ iCGScanPos ] = xGetRateSigCoeffGroup(1, uiCtxSig); |
---|
| 1745 | } |
---|
| 1746 | |
---|
| 1747 | // try to convert the current coeff group from non-zero to all-zero |
---|
| 1748 | d64CostZeroCG += rdStats.d64UncodedDist; // distortion for resetting non-zero levels to zero levels |
---|
| 1749 | d64CostZeroCG -= rdStats.d64CodedLevelandDist; // distortion and level cost for keeping all non-zero levels |
---|
| 1750 | d64CostZeroCG -= rdStats.d64SigCost; // sig cost for all coeffs, including zero levels and non-zerl levels |
---|
| 1751 | |
---|
| 1752 | // if we can save cost, change this block to all-zero block |
---|
| 1753 | if ( d64CostZeroCG < d64BaseCost ) |
---|
| 1754 | { |
---|
| 1755 | uiSigCoeffGroupFlag[ uiCGBlkPos ] = 0; |
---|
| 1756 | d64BaseCost = d64CostZeroCG; |
---|
| 1757 | if (iCGScanPos < iCGLastScanPos) |
---|
| 1758 | { |
---|
| 1759 | pdCostCoeffGroupSig[ iCGScanPos ] = xGetRateSigCoeffGroup(0, uiCtxSig); |
---|
| 1760 | } |
---|
| 1761 | // reset coeffs to 0 in this block |
---|
| 1762 | for (Int iScanPosinCG = uiCGSize-1; iScanPosinCG >= 0; iScanPosinCG--) |
---|
| 1763 | { |
---|
| 1764 | iScanPos = iCGScanPos*uiCGSize + iScanPosinCG; |
---|
| 1765 | UInt uiBlkPos = scan[ iScanPos ]; |
---|
| 1766 | |
---|
| 1767 | if (piDstCoeff[ uiBlkPos ]) |
---|
| 1768 | { |
---|
| 1769 | piDstCoeff [ uiBlkPos ] = 0; |
---|
| 1770 | pdCostCoeff[ iScanPos ] = pdCostCoeff0[ iScanPos ]; |
---|
| 1771 | pdCostSig [ iScanPos ] = 0; |
---|
| 1772 | } |
---|
| 1773 | } |
---|
| 1774 | } // end if ( d64CostAllZeros < d64BaseCost ) |
---|
| 1775 | } |
---|
| 1776 | } // end if if (uiSigCoeffGroupFlag[ uiCGBlkPos ] == 0) |
---|
| 1777 | } |
---|
| 1778 | else |
---|
| 1779 | { |
---|
| 1780 | uiSigCoeffGroupFlag[ uiCGBlkPos ] = 1; |
---|
| 1781 | } |
---|
| 1782 | } |
---|
| 1783 | } //end for (iCGScanPos) |
---|
| 1784 | |
---|
| 1785 | //===== estimate last position ===== |
---|
| 1786 | if ( iLastScanPos < 0 ) |
---|
| 1787 | { |
---|
| 1788 | return; |
---|
| 1789 | } |
---|
| 1790 | |
---|
| 1791 | Double d64BestCost = 0; |
---|
| 1792 | Int ui16CtxCbf = 0; |
---|
| 1793 | Int iBestLastIdxP1 = 0; |
---|
| 1794 | if( !pcCU->isIntra( uiAbsPartIdx ) && eTType == TEXT_LUMA && pcCU->getTransformIdx( uiAbsPartIdx ) == 0 ) |
---|
| 1795 | { |
---|
| 1796 | ui16CtxCbf = 0; |
---|
| 1797 | d64BestCost = d64BlockUncodedCost + xGetICost( m_pcEstBitsSbac->blockRootCbpBits[ ui16CtxCbf ][ 0 ] ); |
---|
| 1798 | d64BaseCost += xGetICost( m_pcEstBitsSbac->blockRootCbpBits[ ui16CtxCbf ][ 1 ] ); |
---|
| 1799 | } |
---|
| 1800 | else |
---|
| 1801 | { |
---|
| 1802 | ui16CtxCbf = pcCU->getCtxQtCbf( eTType, pcCU->getTransformIdx( uiAbsPartIdx ) ); |
---|
| 1803 | ui16CtxCbf = ( eTType ? TEXT_CHROMA : eTType ) * NUM_QT_CBF_CTX + ui16CtxCbf; |
---|
| 1804 | d64BestCost = d64BlockUncodedCost + xGetICost( m_pcEstBitsSbac->blockCbpBits[ ui16CtxCbf ][ 0 ] ); |
---|
| 1805 | d64BaseCost += xGetICost( m_pcEstBitsSbac->blockCbpBits[ ui16CtxCbf ][ 1 ] ); |
---|
| 1806 | } |
---|
| 1807 | |
---|
| 1808 | Bool bFoundLast = false; |
---|
| 1809 | for (Int iCGScanPos = iCGLastScanPos; iCGScanPos >= 0; iCGScanPos--) |
---|
| 1810 | { |
---|
| 1811 | UInt uiCGBlkPos = scanCG[ iCGScanPos ]; |
---|
| 1812 | |
---|
| 1813 | d64BaseCost -= pdCostCoeffGroupSig [ iCGScanPos ]; |
---|
| 1814 | if (uiSigCoeffGroupFlag[ uiCGBlkPos ]) |
---|
| 1815 | { |
---|
| 1816 | for (Int iScanPosinCG = uiCGSize-1; iScanPosinCG >= 0; iScanPosinCG--) |
---|
| 1817 | { |
---|
| 1818 | iScanPos = iCGScanPos*uiCGSize + iScanPosinCG; |
---|
| 1819 | if (iScanPos > iLastScanPos) continue; |
---|
| 1820 | UInt uiBlkPos = scan[iScanPos]; |
---|
| 1821 | |
---|
| 1822 | if( piDstCoeff[ uiBlkPos ] ) |
---|
| 1823 | { |
---|
| 1824 | UInt uiPosY = uiBlkPos >> uiLog2BlkSize; |
---|
| 1825 | UInt uiPosX = uiBlkPos - ( uiPosY << uiLog2BlkSize ); |
---|
| 1826 | |
---|
| 1827 | Double d64CostLast= uiScanIdx == SCAN_VER ? xGetRateLast( uiPosY, uiPosX ) : xGetRateLast( uiPosX, uiPosY ); |
---|
| 1828 | Double totalCost = d64BaseCost + d64CostLast - pdCostSig[ iScanPos ]; |
---|
| 1829 | |
---|
| 1830 | if( totalCost < d64BestCost ) |
---|
| 1831 | { |
---|
| 1832 | iBestLastIdxP1 = iScanPos + 1; |
---|
| 1833 | d64BestCost = totalCost; |
---|
| 1834 | } |
---|
| 1835 | if( piDstCoeff[ uiBlkPos ] > 1 ) |
---|
| 1836 | { |
---|
| 1837 | bFoundLast = true; |
---|
| 1838 | break; |
---|
| 1839 | } |
---|
| 1840 | d64BaseCost -= pdCostCoeff[ iScanPos ]; |
---|
| 1841 | d64BaseCost += pdCostCoeff0[ iScanPos ]; |
---|
| 1842 | } |
---|
| 1843 | else |
---|
| 1844 | { |
---|
| 1845 | d64BaseCost -= pdCostSig[ iScanPos ]; |
---|
| 1846 | } |
---|
| 1847 | } //end for |
---|
| 1848 | if (bFoundLast) |
---|
| 1849 | { |
---|
| 1850 | break; |
---|
| 1851 | } |
---|
| 1852 | } // end if (uiSigCoeffGroupFlag[ uiCGBlkPos ]) |
---|
| 1853 | } // end for |
---|
| 1854 | |
---|
| 1855 | for ( Int scanPos = 0; scanPos < iBestLastIdxP1; scanPos++ ) |
---|
| 1856 | { |
---|
| 1857 | Int blkPos = scan[ scanPos ]; |
---|
| 1858 | Int level = piDstCoeff[ blkPos ]; |
---|
| 1859 | uiAbsSum += level; |
---|
| 1860 | piDstCoeff[ blkPos ] = ( plSrcCoeff[ blkPos ] < 0 ) ? -level : level; |
---|
| 1861 | } |
---|
| 1862 | |
---|
| 1863 | //===== clean uncoded coefficients ===== |
---|
| 1864 | for ( Int scanPos = iBestLastIdxP1; scanPos <= iLastScanPos; scanPos++ ) |
---|
| 1865 | { |
---|
| 1866 | piDstCoeff[ scan[ scanPos ] ] = 0; |
---|
| 1867 | } |
---|
| 1868 | |
---|
| 1869 | if( pcCU->getSlice()->getPPS()->getSignHideFlag() && uiAbsSum>=2) |
---|
| 1870 | { |
---|
| 1871 | Int64 rdFactor = (Int64) ( |
---|
| 1872 | g_invQuantScales[m_cQP.rem()] * g_invQuantScales[m_cQP.rem()] * (1<<(2*m_cQP.m_iPer)) |
---|
| 1873 | / m_dLambda / 16 / (1<<DISTORTION_PRECISION_ADJUSTMENT(2*(uiBitDepth-8))) |
---|
| 1874 | + 0.5); |
---|
| 1875 | Int lastCG = -1; |
---|
| 1876 | Int absSum = 0 ; |
---|
| 1877 | Int n ; |
---|
| 1878 | |
---|
| 1879 | for( Int subSet = (uiWidth*uiHeight-1) >> LOG2_SCAN_SET_SIZE; subSet >= 0; subSet-- ) |
---|
| 1880 | { |
---|
| 1881 | Int subPos = subSet << LOG2_SCAN_SET_SIZE; |
---|
| 1882 | Int firstNZPosInCG=SCAN_SET_SIZE , lastNZPosInCG=-1 ; |
---|
| 1883 | absSum = 0 ; |
---|
| 1884 | |
---|
| 1885 | for(n = SCAN_SET_SIZE-1; n >= 0; --n ) |
---|
| 1886 | { |
---|
| 1887 | if( piDstCoeff[ scan[ n + subPos ]] ) |
---|
| 1888 | { |
---|
| 1889 | lastNZPosInCG = n; |
---|
| 1890 | break; |
---|
| 1891 | } |
---|
| 1892 | } |
---|
| 1893 | |
---|
| 1894 | for(n = 0; n <SCAN_SET_SIZE; n++ ) |
---|
| 1895 | { |
---|
| 1896 | if( piDstCoeff[ scan[ n + subPos ]] ) |
---|
| 1897 | { |
---|
| 1898 | firstNZPosInCG = n; |
---|
| 1899 | break; |
---|
| 1900 | } |
---|
| 1901 | } |
---|
| 1902 | |
---|
| 1903 | for(n = firstNZPosInCG; n <=lastNZPosInCG; n++ ) |
---|
| 1904 | { |
---|
| 1905 | absSum += piDstCoeff[ scan[ n + subPos ]]; |
---|
| 1906 | } |
---|
| 1907 | |
---|
| 1908 | if(lastNZPosInCG>=0 && lastCG==-1) |
---|
| 1909 | { |
---|
| 1910 | lastCG = 1; |
---|
| 1911 | } |
---|
| 1912 | |
---|
| 1913 | if( lastNZPosInCG-firstNZPosInCG>=SBH_THRESHOLD ) |
---|
| 1914 | { |
---|
| 1915 | UInt signbit = (piDstCoeff[scan[subPos+firstNZPosInCG]]>0?0:1); |
---|
| 1916 | if( signbit!=(absSum&0x1) ) // hide but need tune |
---|
| 1917 | { |
---|
| 1918 | // calculate the cost |
---|
| 1919 | Int64 minCostInc = MAX_INT64, curCost=MAX_INT64; |
---|
| 1920 | Int minPos =-1, finalChange=0, curChange=0; |
---|
| 1921 | |
---|
| 1922 | for( n = (lastCG==1?lastNZPosInCG:SCAN_SET_SIZE-1) ; n >= 0; --n ) |
---|
| 1923 | { |
---|
| 1924 | UInt uiBlkPos = scan[ n + subPos ]; |
---|
| 1925 | if(piDstCoeff[ uiBlkPos ] != 0 ) |
---|
| 1926 | { |
---|
| 1927 | Int64 costUp = rdFactor * ( - deltaU[uiBlkPos] ) + rateIncUp[uiBlkPos] ; |
---|
| 1928 | Int64 costDown = rdFactor * ( deltaU[uiBlkPos] ) + rateIncDown[uiBlkPos] |
---|
| 1929 | - ( abs(piDstCoeff[uiBlkPos])==1?((1<<15)+sigRateDelta[uiBlkPos]):0 ); |
---|
| 1930 | |
---|
| 1931 | if(lastCG==1 && lastNZPosInCG==n && abs(piDstCoeff[uiBlkPos])==1) |
---|
| 1932 | { |
---|
| 1933 | costDown -= (4<<15) ; |
---|
| 1934 | } |
---|
| 1935 | |
---|
| 1936 | if(costUp<costDown) |
---|
| 1937 | { |
---|
| 1938 | curCost = costUp; |
---|
| 1939 | curChange = 1 ; |
---|
| 1940 | } |
---|
| 1941 | else |
---|
| 1942 | { |
---|
| 1943 | curChange = -1 ; |
---|
| 1944 | if(n==firstNZPosInCG && abs(piDstCoeff[uiBlkPos])==1) |
---|
| 1945 | { |
---|
| 1946 | curCost = MAX_INT64 ; |
---|
| 1947 | } |
---|
| 1948 | else |
---|
| 1949 | { |
---|
| 1950 | curCost = costDown ; |
---|
| 1951 | } |
---|
| 1952 | } |
---|
| 1953 | } |
---|
| 1954 | else |
---|
| 1955 | { |
---|
| 1956 | curCost = rdFactor * ( - (abs(deltaU[uiBlkPos])) ) + (1<<15) + rateIncUp[uiBlkPos] + sigRateDelta[uiBlkPos] ; |
---|
| 1957 | curChange = 1 ; |
---|
| 1958 | |
---|
| 1959 | if(n<firstNZPosInCG) |
---|
| 1960 | { |
---|
| 1961 | UInt thissignbit = (plSrcCoeff[uiBlkPos]>=0?0:1); |
---|
| 1962 | if(thissignbit != signbit ) |
---|
| 1963 | { |
---|
| 1964 | curCost = MAX_INT64; |
---|
| 1965 | } |
---|
| 1966 | } |
---|
| 1967 | } |
---|
| 1968 | |
---|
| 1969 | if( curCost<minCostInc) |
---|
| 1970 | { |
---|
| 1971 | minCostInc = curCost ; |
---|
| 1972 | finalChange = curChange ; |
---|
| 1973 | minPos = uiBlkPos ; |
---|
| 1974 | } |
---|
| 1975 | } |
---|
| 1976 | |
---|
| 1977 | if(piDstCoeff[minPos] == 32767 || piDstCoeff[minPos] == -32768) |
---|
| 1978 | { |
---|
| 1979 | finalChange = -1; |
---|
| 1980 | } |
---|
| 1981 | |
---|
| 1982 | if(plSrcCoeff[minPos]>=0) |
---|
| 1983 | { |
---|
| 1984 | piDstCoeff[minPos] += finalChange ; |
---|
| 1985 | } |
---|
| 1986 | else |
---|
| 1987 | { |
---|
| 1988 | piDstCoeff[minPos] -= finalChange ; |
---|
| 1989 | } |
---|
| 1990 | } |
---|
| 1991 | } |
---|
| 1992 | |
---|
| 1993 | if(lastCG==1) |
---|
| 1994 | { |
---|
| 1995 | lastCG=0 ; |
---|
| 1996 | } |
---|
| 1997 | } |
---|
| 1998 | } |
---|
| 1999 | } |
---|
| 2000 | |
---|
| 2001 | /** Pattern decision for context derivation process of significant_coeff_flag |
---|
| 2002 | * \param sigCoeffGroupFlag pointer to prior coded significant coeff group |
---|
| 2003 | * \param posXCG column of current coefficient group |
---|
| 2004 | * \param posYCG row of current coefficient group |
---|
| 2005 | * \param width width of the block |
---|
| 2006 | * \param height height of the block |
---|
| 2007 | * \returns pattern for current coefficient group |
---|
| 2008 | */ |
---|
| 2009 | Int TComTrQuant::calcPatternSigCtx( const UInt* sigCoeffGroupFlag, UInt posXCG, UInt posYCG, Int width, Int height ) |
---|
| 2010 | { |
---|
| 2011 | if( width == 4 && height == 4 ) return -1; |
---|
| 2012 | |
---|
| 2013 | UInt sigRight = 0; |
---|
| 2014 | UInt sigLower = 0; |
---|
| 2015 | |
---|
| 2016 | width >>= 2; |
---|
| 2017 | height >>= 2; |
---|
| 2018 | if( posXCG < width - 1 ) |
---|
| 2019 | { |
---|
| 2020 | sigRight = (sigCoeffGroupFlag[ posYCG * width + posXCG + 1 ] != 0); |
---|
| 2021 | } |
---|
| 2022 | if (posYCG < height - 1 ) |
---|
| 2023 | { |
---|
| 2024 | sigLower = (sigCoeffGroupFlag[ (posYCG + 1 ) * width + posXCG ] != 0); |
---|
| 2025 | } |
---|
| 2026 | return sigRight + (sigLower<<1); |
---|
| 2027 | } |
---|
| 2028 | |
---|
| 2029 | /** Context derivation process of coeff_abs_significant_flag |
---|
| 2030 | * \param patternSigCtx pattern for current coefficient group |
---|
| 2031 | * \param posX column of current scan position |
---|
| 2032 | * \param posY row of current scan position |
---|
| 2033 | * \param log2BlockSize log2 value of block size (square block) |
---|
| 2034 | * \param width width of the block |
---|
| 2035 | * \param height height of the block |
---|
| 2036 | * \param textureType texture type (TEXT_LUMA...) |
---|
| 2037 | * \returns ctxInc for current scan position |
---|
| 2038 | */ |
---|
| 2039 | Int TComTrQuant::getSigCtxInc ( |
---|
| 2040 | Int patternSigCtx, |
---|
| 2041 | UInt scanIdx, |
---|
| 2042 | Int posX, |
---|
| 2043 | Int posY, |
---|
| 2044 | Int log2BlockSize, |
---|
| 2045 | TextType textureType |
---|
| 2046 | ) |
---|
| 2047 | { |
---|
| 2048 | const Int ctxIndMap[16] = |
---|
| 2049 | { |
---|
| 2050 | 0, 1, 4, 5, |
---|
| 2051 | 2, 3, 4, 5, |
---|
| 2052 | 6, 6, 8, 8, |
---|
| 2053 | 7, 7, 8, 8 |
---|
| 2054 | }; |
---|
| 2055 | |
---|
| 2056 | if( posX + posY == 0 ) |
---|
| 2057 | { |
---|
| 2058 | return 0; |
---|
| 2059 | } |
---|
| 2060 | |
---|
| 2061 | if ( log2BlockSize == 2 ) |
---|
| 2062 | { |
---|
| 2063 | return ctxIndMap[ 4 * posY + posX ]; |
---|
| 2064 | } |
---|
| 2065 | |
---|
| 2066 | Int offset = log2BlockSize == 3 ? (scanIdx==SCAN_DIAG ? 9 : 15) : (textureType == TEXT_LUMA ? 21 : 12); |
---|
| 2067 | |
---|
| 2068 | Int posXinSubset = posX-((posX>>2)<<2); |
---|
| 2069 | Int posYinSubset = posY-((posY>>2)<<2); |
---|
| 2070 | Int cnt = 0; |
---|
| 2071 | if(patternSigCtx==0) |
---|
| 2072 | { |
---|
| 2073 | cnt = posXinSubset+posYinSubset<=2 ? (posXinSubset+posYinSubset==0 ? 2 : 1) : 0; |
---|
| 2074 | } |
---|
| 2075 | else if(patternSigCtx==1) |
---|
| 2076 | { |
---|
| 2077 | cnt = posYinSubset<=1 ? (posYinSubset==0 ? 2 : 1) : 0; |
---|
| 2078 | } |
---|
| 2079 | else if(patternSigCtx==2) |
---|
| 2080 | { |
---|
| 2081 | cnt = posXinSubset<=1 ? (posXinSubset==0 ? 2 : 1) : 0; |
---|
| 2082 | } |
---|
| 2083 | else |
---|
| 2084 | { |
---|
| 2085 | cnt = 2; |
---|
| 2086 | } |
---|
| 2087 | |
---|
| 2088 | return (( textureType == TEXT_LUMA && ((posX>>2) + (posY>>2)) > 0 ) ? 3 : 0) + offset + cnt; |
---|
| 2089 | } |
---|
| 2090 | |
---|
| 2091 | /** Get the best level in RD sense |
---|
| 2092 | * \param rd64CodedCost reference to coded cost |
---|
| 2093 | * \param rd64CodedCost0 reference to cost when coefficient is 0 |
---|
| 2094 | * \param rd64CodedCostSig reference to cost of significant coefficient |
---|
| 2095 | * \param lLevelDouble reference to unscaled quantized level |
---|
| 2096 | * \param uiMaxAbsLevel scaled quantized level |
---|
| 2097 | * \param ui16CtxNumSig current ctxInc for coeff_abs_significant_flag |
---|
| 2098 | * \param ui16CtxNumOne current ctxInc for coeff_abs_level_greater1 (1st bin of coeff_abs_level_minus1 in AVC) |
---|
| 2099 | * \param ui16CtxNumAbs current ctxInc for coeff_abs_level_greater2 (remaining bins of coeff_abs_level_minus1 in AVC) |
---|
| 2100 | * \param ui16AbsGoRice current Rice parameter for coeff_abs_level_minus3 |
---|
| 2101 | * \param iQBits quantization step size |
---|
| 2102 | * \param dTemp correction factor |
---|
| 2103 | * \param bLast indicates if the coefficient is the last significant |
---|
| 2104 | * \returns best quantized transform level for given scan position |
---|
| 2105 | * This method calculates the best quantized transform level for a given scan position. |
---|
| 2106 | */ |
---|
| 2107 | __inline UInt TComTrQuant::xGetCodedLevel ( Double& rd64CodedCost, |
---|
| 2108 | Double& rd64CodedCost0, |
---|
| 2109 | Double& rd64CodedCostSig, |
---|
| 2110 | Int lLevelDouble, |
---|
| 2111 | UInt uiMaxAbsLevel, |
---|
| 2112 | UShort ui16CtxNumSig, |
---|
| 2113 | UShort ui16CtxNumOne, |
---|
| 2114 | UShort ui16CtxNumAbs, |
---|
| 2115 | UShort ui16AbsGoRice, |
---|
| 2116 | UInt c1Idx, |
---|
| 2117 | UInt c2Idx, |
---|
| 2118 | Int iQBits, |
---|
| 2119 | Double dTemp, |
---|
| 2120 | Bool bLast ) const |
---|
| 2121 | { |
---|
| 2122 | Double dCurrCostSig = 0; |
---|
| 2123 | UInt uiBestAbsLevel = 0; |
---|
| 2124 | |
---|
| 2125 | if( !bLast && uiMaxAbsLevel < 3 ) |
---|
| 2126 | { |
---|
| 2127 | rd64CodedCostSig = xGetRateSigCoef( 0, ui16CtxNumSig ); |
---|
| 2128 | rd64CodedCost = rd64CodedCost0 + rd64CodedCostSig; |
---|
| 2129 | if( uiMaxAbsLevel == 0 ) |
---|
| 2130 | { |
---|
| 2131 | return uiBestAbsLevel; |
---|
| 2132 | } |
---|
| 2133 | } |
---|
| 2134 | else |
---|
| 2135 | { |
---|
| 2136 | rd64CodedCost = MAX_DOUBLE; |
---|
| 2137 | } |
---|
| 2138 | |
---|
| 2139 | if( !bLast ) |
---|
| 2140 | { |
---|
| 2141 | dCurrCostSig = xGetRateSigCoef( 1, ui16CtxNumSig ); |
---|
| 2142 | } |
---|
| 2143 | |
---|
| 2144 | UInt uiMinAbsLevel = ( uiMaxAbsLevel > 1 ? uiMaxAbsLevel - 1 : 1 ); |
---|
| 2145 | for( Int uiAbsLevel = uiMaxAbsLevel; uiAbsLevel >= uiMinAbsLevel ; uiAbsLevel-- ) |
---|
| 2146 | { |
---|
| 2147 | Double dErr = Double( lLevelDouble - ( uiAbsLevel << iQBits ) ); |
---|
| 2148 | Double dCurrCost = dErr * dErr * dTemp + xGetICRateCost( uiAbsLevel, ui16CtxNumOne, ui16CtxNumAbs, ui16AbsGoRice, c1Idx, c2Idx ); |
---|
| 2149 | dCurrCost += dCurrCostSig; |
---|
| 2150 | |
---|
| 2151 | if( dCurrCost < rd64CodedCost ) |
---|
| 2152 | { |
---|
| 2153 | uiBestAbsLevel = uiAbsLevel; |
---|
| 2154 | rd64CodedCost = dCurrCost; |
---|
| 2155 | rd64CodedCostSig = dCurrCostSig; |
---|
| 2156 | } |
---|
| 2157 | } |
---|
| 2158 | |
---|
| 2159 | return uiBestAbsLevel; |
---|
| 2160 | } |
---|
| 2161 | |
---|
| 2162 | /** Calculates the cost for specific absolute transform level |
---|
| 2163 | * \param uiAbsLevel scaled quantized level |
---|
| 2164 | * \param ui16CtxNumOne current ctxInc for coeff_abs_level_greater1 (1st bin of coeff_abs_level_minus1 in AVC) |
---|
| 2165 | * \param ui16CtxNumAbs current ctxInc for coeff_abs_level_greater2 (remaining bins of coeff_abs_level_minus1 in AVC) |
---|
| 2166 | * \param ui16AbsGoRice Rice parameter for coeff_abs_level_minus3 |
---|
| 2167 | * \returns cost of given absolute transform level |
---|
| 2168 | */ |
---|
| 2169 | __inline Double TComTrQuant::xGetICRateCost ( UInt uiAbsLevel, |
---|
| 2170 | UShort ui16CtxNumOne, |
---|
| 2171 | UShort ui16CtxNumAbs, |
---|
| 2172 | UShort ui16AbsGoRice |
---|
| 2173 | , UInt c1Idx, |
---|
| 2174 | UInt c2Idx |
---|
| 2175 | ) const |
---|
| 2176 | { |
---|
| 2177 | Double iRate = xGetIEPRate(); |
---|
| 2178 | UInt baseLevel = (c1Idx < C1FLAG_NUMBER)? (2 + (c2Idx < C2FLAG_NUMBER)) : 1; |
---|
| 2179 | |
---|
| 2180 | if ( uiAbsLevel >= baseLevel ) |
---|
| 2181 | { |
---|
| 2182 | UInt symbol = uiAbsLevel - baseLevel; |
---|
| 2183 | UInt length; |
---|
| 2184 | if (symbol < (COEF_REMAIN_BIN_REDUCTION << ui16AbsGoRice)) |
---|
| 2185 | { |
---|
| 2186 | length = symbol>>ui16AbsGoRice; |
---|
| 2187 | iRate += (length+1+ui16AbsGoRice)<< 15; |
---|
| 2188 | } |
---|
| 2189 | else |
---|
| 2190 | { |
---|
| 2191 | length = ui16AbsGoRice; |
---|
| 2192 | symbol = symbol - ( COEF_REMAIN_BIN_REDUCTION << ui16AbsGoRice); |
---|
| 2193 | while (symbol >= (1<<length)) |
---|
| 2194 | { |
---|
| 2195 | symbol -= (1<<(length++)); |
---|
| 2196 | } |
---|
| 2197 | iRate += (COEF_REMAIN_BIN_REDUCTION+length+1-ui16AbsGoRice+length)<< 15; |
---|
| 2198 | } |
---|
| 2199 | if (c1Idx < C1FLAG_NUMBER) |
---|
| 2200 | { |
---|
| 2201 | iRate += m_pcEstBitsSbac->m_greaterOneBits[ ui16CtxNumOne ][ 1 ]; |
---|
| 2202 | |
---|
| 2203 | if (c2Idx < C2FLAG_NUMBER) |
---|
| 2204 | { |
---|
| 2205 | iRate += m_pcEstBitsSbac->m_levelAbsBits[ ui16CtxNumAbs ][ 1 ]; |
---|
| 2206 | } |
---|
| 2207 | } |
---|
| 2208 | } |
---|
| 2209 | else |
---|
| 2210 | if( uiAbsLevel == 1 ) |
---|
| 2211 | { |
---|
| 2212 | iRate += m_pcEstBitsSbac->m_greaterOneBits[ ui16CtxNumOne ][ 0 ]; |
---|
| 2213 | } |
---|
| 2214 | else if( uiAbsLevel == 2 ) |
---|
| 2215 | { |
---|
| 2216 | iRate += m_pcEstBitsSbac->m_greaterOneBits[ ui16CtxNumOne ][ 1 ]; |
---|
| 2217 | iRate += m_pcEstBitsSbac->m_levelAbsBits[ ui16CtxNumAbs ][ 0 ]; |
---|
| 2218 | } |
---|
| 2219 | else |
---|
| 2220 | { |
---|
| 2221 | assert (0); |
---|
| 2222 | } |
---|
| 2223 | return xGetICost( iRate ); |
---|
| 2224 | } |
---|
| 2225 | |
---|
| 2226 | __inline Int TComTrQuant::xGetICRate ( UInt uiAbsLevel, |
---|
| 2227 | UShort ui16CtxNumOne, |
---|
| 2228 | UShort ui16CtxNumAbs, |
---|
| 2229 | UShort ui16AbsGoRice |
---|
| 2230 | , UInt c1Idx, |
---|
| 2231 | UInt c2Idx |
---|
| 2232 | ) const |
---|
| 2233 | { |
---|
| 2234 | Int iRate = 0; |
---|
| 2235 | UInt baseLevel = (c1Idx < C1FLAG_NUMBER)? (2 + (c2Idx < C2FLAG_NUMBER)) : 1; |
---|
| 2236 | |
---|
| 2237 | if ( uiAbsLevel >= baseLevel ) |
---|
| 2238 | { |
---|
| 2239 | UInt uiSymbol = uiAbsLevel - baseLevel; |
---|
| 2240 | UInt uiMaxVlc = g_auiGoRiceRange[ ui16AbsGoRice ]; |
---|
| 2241 | Bool bExpGolomb = ( uiSymbol > uiMaxVlc ); |
---|
| 2242 | |
---|
| 2243 | if( bExpGolomb ) |
---|
| 2244 | { |
---|
| 2245 | uiAbsLevel = uiSymbol - uiMaxVlc; |
---|
| 2246 | Int iEGS = 1; for( UInt uiMax = 2; uiAbsLevel >= uiMax; uiMax <<= 1, iEGS += 2 ); |
---|
| 2247 | iRate += iEGS << 15; |
---|
| 2248 | uiSymbol = min<UInt>( uiSymbol, ( uiMaxVlc + 1 ) ); |
---|
| 2249 | } |
---|
| 2250 | |
---|
| 2251 | UShort ui16PrefLen = UShort( uiSymbol >> ui16AbsGoRice ) + 1; |
---|
| 2252 | UShort ui16NumBins = min<UInt>( ui16PrefLen, g_auiGoRicePrefixLen[ ui16AbsGoRice ] ) + ui16AbsGoRice; |
---|
| 2253 | |
---|
| 2254 | iRate += ui16NumBins << 15; |
---|
| 2255 | |
---|
| 2256 | if (c1Idx < C1FLAG_NUMBER) |
---|
| 2257 | { |
---|
| 2258 | iRate += m_pcEstBitsSbac->m_greaterOneBits[ ui16CtxNumOne ][ 1 ]; |
---|
| 2259 | |
---|
| 2260 | if (c2Idx < C2FLAG_NUMBER) |
---|
| 2261 | { |
---|
| 2262 | iRate += m_pcEstBitsSbac->m_levelAbsBits[ ui16CtxNumAbs ][ 1 ]; |
---|
| 2263 | } |
---|
| 2264 | } |
---|
| 2265 | } |
---|
| 2266 | else |
---|
| 2267 | if( uiAbsLevel == 0 ) |
---|
| 2268 | { |
---|
| 2269 | return 0; |
---|
| 2270 | } |
---|
| 2271 | else if( uiAbsLevel == 1 ) |
---|
| 2272 | { |
---|
| 2273 | iRate += m_pcEstBitsSbac->m_greaterOneBits[ ui16CtxNumOne ][ 0 ]; |
---|
| 2274 | } |
---|
| 2275 | else if( uiAbsLevel == 2 ) |
---|
| 2276 | { |
---|
| 2277 | iRate += m_pcEstBitsSbac->m_greaterOneBits[ ui16CtxNumOne ][ 1 ]; |
---|
| 2278 | iRate += m_pcEstBitsSbac->m_levelAbsBits[ ui16CtxNumAbs ][ 0 ]; |
---|
| 2279 | } |
---|
| 2280 | else |
---|
| 2281 | { |
---|
| 2282 | assert(0); |
---|
| 2283 | } |
---|
| 2284 | return iRate; |
---|
| 2285 | } |
---|
| 2286 | |
---|
| 2287 | __inline Double TComTrQuant::xGetRateSigCoeffGroup ( UShort uiSignificanceCoeffGroup, |
---|
| 2288 | UShort ui16CtxNumSig ) const |
---|
| 2289 | { |
---|
| 2290 | return xGetICost( m_pcEstBitsSbac->significantCoeffGroupBits[ ui16CtxNumSig ][ uiSignificanceCoeffGroup ] ); |
---|
| 2291 | } |
---|
| 2292 | |
---|
| 2293 | /** Calculates the cost of signaling the last significant coefficient in the block |
---|
| 2294 | * \param uiPosX X coordinate of the last significant coefficient |
---|
| 2295 | * \param uiPosY Y coordinate of the last significant coefficient |
---|
| 2296 | * \returns cost of last significant coefficient |
---|
| 2297 | */ |
---|
| 2298 | /* |
---|
| 2299 | * \param uiWidth width of the transform unit (TU) |
---|
| 2300 | */ |
---|
| 2301 | __inline Double TComTrQuant::xGetRateLast ( const UInt uiPosX, |
---|
| 2302 | const UInt uiPosY ) const |
---|
| 2303 | { |
---|
| 2304 | UInt uiCtxX = g_uiGroupIdx[uiPosX]; |
---|
| 2305 | UInt uiCtxY = g_uiGroupIdx[uiPosY]; |
---|
| 2306 | Double uiCost = m_pcEstBitsSbac->lastXBits[ uiCtxX ] + m_pcEstBitsSbac->lastYBits[ uiCtxY ]; |
---|
| 2307 | if( uiCtxX > 3 ) |
---|
| 2308 | { |
---|
| 2309 | uiCost += xGetIEPRate() * ((uiCtxX-2)>>1); |
---|
| 2310 | } |
---|
| 2311 | if( uiCtxY > 3 ) |
---|
| 2312 | { |
---|
| 2313 | uiCost += xGetIEPRate() * ((uiCtxY-2)>>1); |
---|
| 2314 | } |
---|
| 2315 | return xGetICost( uiCost ); |
---|
| 2316 | } |
---|
| 2317 | |
---|
| 2318 | /** Calculates the cost for specific absolute transform level |
---|
| 2319 | * \param uiAbsLevel scaled quantized level |
---|
| 2320 | * \param ui16CtxNumOne current ctxInc for coeff_abs_level_greater1 (1st bin of coeff_abs_level_minus1 in AVC) |
---|
| 2321 | * \param ui16CtxNumAbs current ctxInc for coeff_abs_level_greater2 (remaining bins of coeff_abs_level_minus1 in AVC) |
---|
| 2322 | * \param ui16CtxBase current global offset for coeff_abs_level_greater1 and coeff_abs_level_greater2 |
---|
| 2323 | * \returns cost of given absolute transform level |
---|
| 2324 | */ |
---|
| 2325 | __inline Double TComTrQuant::xGetRateSigCoef ( UShort uiSignificance, |
---|
| 2326 | UShort ui16CtxNumSig ) const |
---|
| 2327 | { |
---|
| 2328 | return xGetICost( m_pcEstBitsSbac->significantBits[ ui16CtxNumSig ][ uiSignificance ] ); |
---|
| 2329 | } |
---|
| 2330 | |
---|
| 2331 | /** Get the cost for a specific rate |
---|
| 2332 | * \param dRate rate of a bit |
---|
| 2333 | * \returns cost at the specific rate |
---|
| 2334 | */ |
---|
| 2335 | __inline Double TComTrQuant::xGetICost ( Double dRate ) const |
---|
| 2336 | { |
---|
| 2337 | return m_dLambda * dRate; |
---|
| 2338 | } |
---|
| 2339 | |
---|
| 2340 | /** Get the cost of an equal probable bit |
---|
| 2341 | * \returns cost of equal probable bit |
---|
| 2342 | */ |
---|
| 2343 | __inline Double TComTrQuant::xGetIEPRate ( ) const |
---|
| 2344 | { |
---|
| 2345 | return 32768; |
---|
| 2346 | } |
---|
| 2347 | |
---|
| 2348 | /** Context derivation process of coeff_abs_significant_flag |
---|
| 2349 | * \param uiSigCoeffGroupFlag significance map of L1 |
---|
| 2350 | * \param uiBlkX column of current scan position |
---|
| 2351 | * \param uiBlkY row of current scan position |
---|
| 2352 | * \param uiLog2BlkSize log2 value of block size |
---|
| 2353 | * \returns ctxInc for current scan position |
---|
| 2354 | */ |
---|
| 2355 | UInt TComTrQuant::getSigCoeffGroupCtxInc ( const UInt* uiSigCoeffGroupFlag, |
---|
| 2356 | const UInt uiCGPosX, |
---|
| 2357 | const UInt uiCGPosY, |
---|
| 2358 | Int width, Int height) |
---|
| 2359 | { |
---|
| 2360 | UInt uiRight = 0; |
---|
| 2361 | UInt uiLower = 0; |
---|
| 2362 | |
---|
| 2363 | width >>= 2; |
---|
| 2364 | height >>= 2; |
---|
| 2365 | if( uiCGPosX < width - 1 ) |
---|
| 2366 | { |
---|
| 2367 | uiRight = (uiSigCoeffGroupFlag[ uiCGPosY * width + uiCGPosX + 1 ] != 0); |
---|
| 2368 | } |
---|
| 2369 | if (uiCGPosY < height - 1 ) |
---|
| 2370 | { |
---|
| 2371 | uiLower = (uiSigCoeffGroupFlag[ (uiCGPosY + 1 ) * width + uiCGPosX ] != 0); |
---|
| 2372 | } |
---|
| 2373 | return (uiRight || uiLower); |
---|
| 2374 | |
---|
| 2375 | } |
---|
| 2376 | /** set quantized matrix coefficient for encode |
---|
| 2377 | * \param scalingList quantaized matrix address |
---|
| 2378 | */ |
---|
| 2379 | Void TComTrQuant::setScalingList(TComScalingList *scalingList) |
---|
| 2380 | { |
---|
| 2381 | UInt size,list; |
---|
| 2382 | UInt qp; |
---|
| 2383 | |
---|
| 2384 | for(size=0;size<SCALING_LIST_SIZE_NUM;size++) |
---|
| 2385 | { |
---|
| 2386 | for(list = 0; list < g_scalingListNum[size]; list++) |
---|
| 2387 | { |
---|
| 2388 | for(qp=0;qp<SCALING_LIST_REM_NUM;qp++) |
---|
| 2389 | { |
---|
| 2390 | xSetScalingListEnc(scalingList,list,size,qp); |
---|
| 2391 | xSetScalingListDec(scalingList,list,size,qp); |
---|
| 2392 | setErrScaleCoeff(list,size,qp); |
---|
| 2393 | } |
---|
| 2394 | } |
---|
| 2395 | } |
---|
| 2396 | } |
---|
| 2397 | /** set quantized matrix coefficient for decode |
---|
| 2398 | * \param scalingList quantaized matrix address |
---|
| 2399 | */ |
---|
| 2400 | Void TComTrQuant::setScalingListDec(TComScalingList *scalingList) |
---|
| 2401 | { |
---|
| 2402 | UInt size,list; |
---|
| 2403 | UInt qp; |
---|
| 2404 | |
---|
| 2405 | for(size=0;size<SCALING_LIST_SIZE_NUM;size++) |
---|
| 2406 | { |
---|
| 2407 | for(list = 0; list < g_scalingListNum[size]; list++) |
---|
| 2408 | { |
---|
| 2409 | for(qp=0;qp<SCALING_LIST_REM_NUM;qp++) |
---|
| 2410 | { |
---|
| 2411 | xSetScalingListDec(scalingList,list,size,qp); |
---|
| 2412 | } |
---|
| 2413 | } |
---|
| 2414 | } |
---|
| 2415 | } |
---|
| 2416 | /** set error scale coefficients |
---|
| 2417 | * \param list List ID |
---|
| 2418 | * \param uiSize Size |
---|
| 2419 | * \param uiQP Quantization parameter |
---|
| 2420 | */ |
---|
| 2421 | Void TComTrQuant::setErrScaleCoeff(UInt list,UInt size, UInt qp) |
---|
| 2422 | { |
---|
| 2423 | |
---|
| 2424 | UInt uiLog2TrSize = g_aucConvertToBit[ g_scalingListSizeX[size] ] + 2; |
---|
| 2425 | Int bitDepth = (size < SCALING_LIST_32x32 && list != 0 && list != 3) ? g_bitDepthC : g_bitDepthY; |
---|
| 2426 | Int iTransformShift = MAX_TR_DYNAMIC_RANGE - bitDepth - uiLog2TrSize; // Represents scaling through forward transform |
---|
| 2427 | |
---|
| 2428 | UInt i,uiMaxNumCoeff = g_scalingListSize[size]; |
---|
| 2429 | Int *piQuantcoeff; |
---|
| 2430 | Double *pdErrScale; |
---|
| 2431 | piQuantcoeff = getQuantCoeff(list, qp,size); |
---|
| 2432 | pdErrScale = getErrScaleCoeff(list, size, qp); |
---|
| 2433 | |
---|
| 2434 | Double dErrScale = (Double)(1<<SCALE_BITS); // Compensate for scaling of bitcount in Lagrange cost function |
---|
| 2435 | dErrScale = dErrScale*pow(2.0,-2.0*iTransformShift); // Compensate for scaling through forward transform |
---|
| 2436 | for(i=0;i<uiMaxNumCoeff;i++) |
---|
| 2437 | { |
---|
| 2438 | pdErrScale[i] = dErrScale / piQuantcoeff[i] / piQuantcoeff[i] / (1<<DISTORTION_PRECISION_ADJUSTMENT(2*(bitDepth-8))); |
---|
| 2439 | } |
---|
| 2440 | } |
---|
| 2441 | |
---|
| 2442 | /** set quantized matrix coefficient for encode |
---|
| 2443 | * \param scalingList quantaized matrix address |
---|
| 2444 | * \param listId List index |
---|
| 2445 | * \param sizeId size index |
---|
| 2446 | * \param uiQP Quantization parameter |
---|
| 2447 | */ |
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| 2448 | Void TComTrQuant::xSetScalingListEnc(TComScalingList *scalingList, UInt listId, UInt sizeId, UInt qp) |
---|
| 2449 | { |
---|
| 2450 | UInt width = g_scalingListSizeX[sizeId]; |
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| 2451 | UInt height = g_scalingListSizeX[sizeId]; |
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| 2452 | UInt ratio = g_scalingListSizeX[sizeId]/min(MAX_MATRIX_SIZE_NUM,(Int)g_scalingListSizeX[sizeId]); |
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| 2453 | Int *quantcoeff; |
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| 2454 | Int *coeff = scalingList->getScalingListAddress(sizeId,listId); |
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| 2455 | quantcoeff = getQuantCoeff(listId, qp, sizeId); |
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| 2456 | |
---|
| 2457 | processScalingListEnc(coeff,quantcoeff,g_quantScales[qp]<<4,height,width,ratio,min(MAX_MATRIX_SIZE_NUM,(Int)g_scalingListSizeX[sizeId]),scalingList->getScalingListDC(sizeId,listId)); |
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| 2458 | } |
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| 2459 | /** set quantized matrix coefficient for decode |
---|
| 2460 | * \param scalingList quantaized matrix address |
---|
| 2461 | * \param list List index |
---|
| 2462 | * \param size size index |
---|
| 2463 | * \param uiQP Quantization parameter |
---|
| 2464 | */ |
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| 2465 | Void TComTrQuant::xSetScalingListDec(TComScalingList *scalingList, UInt listId, UInt sizeId, UInt qp) |
---|
| 2466 | { |
---|
| 2467 | UInt width = g_scalingListSizeX[sizeId]; |
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| 2468 | UInt height = g_scalingListSizeX[sizeId]; |
---|
| 2469 | UInt ratio = g_scalingListSizeX[sizeId]/min(MAX_MATRIX_SIZE_NUM,(Int)g_scalingListSizeX[sizeId]); |
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| 2470 | Int *dequantcoeff; |
---|
| 2471 | Int *coeff = scalingList->getScalingListAddress(sizeId,listId); |
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| 2472 | |
---|
| 2473 | dequantcoeff = getDequantCoeff(listId, qp, sizeId); |
---|
| 2474 | processScalingListDec(coeff,dequantcoeff,g_invQuantScales[qp],height,width,ratio,min(MAX_MATRIX_SIZE_NUM,(Int)g_scalingListSizeX[sizeId]),scalingList->getScalingListDC(sizeId,listId)); |
---|
| 2475 | } |
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| 2476 | |
---|
| 2477 | /** set flat matrix value to quantized coefficient |
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| 2478 | */ |
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| 2479 | Void TComTrQuant::setFlatScalingList() |
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| 2480 | { |
---|
| 2481 | UInt size,list; |
---|
| 2482 | UInt qp; |
---|
| 2483 | |
---|
| 2484 | for(size=0;size<SCALING_LIST_SIZE_NUM;size++) |
---|
| 2485 | { |
---|
| 2486 | for(list = 0; list < g_scalingListNum[size]; list++) |
---|
| 2487 | { |
---|
| 2488 | for(qp=0;qp<SCALING_LIST_REM_NUM;qp++) |
---|
| 2489 | { |
---|
| 2490 | xsetFlatScalingList(list,size,qp); |
---|
| 2491 | setErrScaleCoeff(list,size,qp); |
---|
| 2492 | } |
---|
| 2493 | } |
---|
| 2494 | } |
---|
| 2495 | } |
---|
| 2496 | |
---|
| 2497 | /** set flat matrix value to quantized coefficient |
---|
| 2498 | * \param list List ID |
---|
| 2499 | * \param uiQP Quantization parameter |
---|
| 2500 | * \param uiSize Size |
---|
| 2501 | */ |
---|
| 2502 | Void TComTrQuant::xsetFlatScalingList(UInt list, UInt size, UInt qp) |
---|
| 2503 | { |
---|
| 2504 | UInt i,num = g_scalingListSize[size]; |
---|
| 2505 | Int *quantcoeff; |
---|
| 2506 | Int *dequantcoeff; |
---|
| 2507 | Int quantScales = g_quantScales[qp]; |
---|
| 2508 | Int invQuantScales = g_invQuantScales[qp]<<4; |
---|
| 2509 | |
---|
| 2510 | quantcoeff = getQuantCoeff(list, qp, size); |
---|
| 2511 | dequantcoeff = getDequantCoeff(list, qp, size); |
---|
| 2512 | |
---|
| 2513 | for(i=0;i<num;i++) |
---|
| 2514 | { |
---|
| 2515 | *quantcoeff++ = quantScales; |
---|
| 2516 | *dequantcoeff++ = invQuantScales; |
---|
| 2517 | } |
---|
| 2518 | } |
---|
| 2519 | |
---|
| 2520 | /** set quantized matrix coefficient for encode |
---|
| 2521 | * \param coeff quantaized matrix address |
---|
| 2522 | * \param quantcoeff quantaized matrix address |
---|
| 2523 | * \param quantScales Q(QP%6) |
---|
| 2524 | * \param height height |
---|
| 2525 | * \param width width |
---|
| 2526 | * \param ratio ratio for upscale |
---|
| 2527 | * \param sizuNum matrix size |
---|
| 2528 | * \param dc dc parameter |
---|
| 2529 | */ |
---|
| 2530 | Void TComTrQuant::processScalingListEnc( Int *coeff, Int *quantcoeff, Int quantScales, UInt height, UInt width, UInt ratio, Int sizuNum, UInt dc) |
---|
| 2531 | { |
---|
| 2532 | Int nsqth = (height < width) ? 4: 1; //height ratio for NSQT |
---|
| 2533 | Int nsqtw = (width < height) ? 4: 1; //width ratio for NSQT |
---|
| 2534 | for(UInt j=0;j<height;j++) |
---|
| 2535 | { |
---|
| 2536 | for(UInt i=0;i<width;i++) |
---|
| 2537 | { |
---|
| 2538 | quantcoeff[j*width + i] = quantScales / coeff[sizuNum * (j * nsqth / ratio) + i * nsqtw /ratio]; |
---|
| 2539 | } |
---|
| 2540 | } |
---|
| 2541 | if(ratio > 1) |
---|
| 2542 | { |
---|
| 2543 | quantcoeff[0] = quantScales / dc; |
---|
| 2544 | } |
---|
| 2545 | } |
---|
| 2546 | /** set quantized matrix coefficient for decode |
---|
| 2547 | * \param coeff quantaized matrix address |
---|
| 2548 | * \param dequantcoeff quantaized matrix address |
---|
| 2549 | * \param invQuantScales IQ(QP%6)) |
---|
| 2550 | * \param height height |
---|
| 2551 | * \param width width |
---|
| 2552 | * \param ratio ratio for upscale |
---|
| 2553 | * \param sizuNum matrix size |
---|
| 2554 | * \param dc dc parameter |
---|
| 2555 | */ |
---|
| 2556 | Void TComTrQuant::processScalingListDec( Int *coeff, Int *dequantcoeff, Int invQuantScales, UInt height, UInt width, UInt ratio, Int sizuNum, UInt dc) |
---|
| 2557 | { |
---|
| 2558 | for(UInt j=0;j<height;j++) |
---|
| 2559 | { |
---|
| 2560 | for(UInt i=0;i<width;i++) |
---|
| 2561 | { |
---|
| 2562 | dequantcoeff[j*width + i] = invQuantScales * coeff[sizuNum * (j / ratio) + i / ratio]; |
---|
| 2563 | } |
---|
| 2564 | } |
---|
| 2565 | if(ratio > 1) |
---|
| 2566 | { |
---|
| 2567 | dequantcoeff[0] = invQuantScales * dc; |
---|
| 2568 | } |
---|
| 2569 | } |
---|
| 2570 | |
---|
| 2571 | /** initialization process of scaling list array |
---|
| 2572 | */ |
---|
| 2573 | Void TComTrQuant::initScalingList() |
---|
| 2574 | { |
---|
| 2575 | for(UInt sizeId = 0; sizeId < SCALING_LIST_SIZE_NUM; sizeId++) |
---|
| 2576 | { |
---|
| 2577 | for(UInt listId = 0; listId < g_scalingListNum[sizeId]; listId++) |
---|
| 2578 | { |
---|
| 2579 | for(UInt qp = 0; qp < SCALING_LIST_REM_NUM; qp++) |
---|
| 2580 | { |
---|
| 2581 | m_quantCoef [sizeId][listId][qp] = new Int [g_scalingListSize[sizeId]]; |
---|
| 2582 | m_dequantCoef [sizeId][listId][qp] = new Int [g_scalingListSize[sizeId]]; |
---|
| 2583 | m_errScale [sizeId][listId][qp] = new Double [g_scalingListSize[sizeId]]; |
---|
| 2584 | } |
---|
| 2585 | } |
---|
| 2586 | } |
---|
| 2587 | // alias list [1] as [3]. |
---|
| 2588 | for(UInt qp = 0; qp < SCALING_LIST_REM_NUM; qp++) |
---|
| 2589 | { |
---|
| 2590 | m_quantCoef [SCALING_LIST_32x32][3][qp] = m_quantCoef [SCALING_LIST_32x32][1][qp]; |
---|
| 2591 | m_dequantCoef [SCALING_LIST_32x32][3][qp] = m_dequantCoef [SCALING_LIST_32x32][1][qp]; |
---|
| 2592 | m_errScale [SCALING_LIST_32x32][3][qp] = m_errScale [SCALING_LIST_32x32][1][qp]; |
---|
| 2593 | } |
---|
| 2594 | } |
---|
| 2595 | /** destroy quantization matrix array |
---|
| 2596 | */ |
---|
| 2597 | Void TComTrQuant::destroyScalingList() |
---|
| 2598 | { |
---|
| 2599 | for(UInt sizeId = 0; sizeId < SCALING_LIST_SIZE_NUM; sizeId++) |
---|
| 2600 | { |
---|
| 2601 | for(UInt listId = 0; listId < g_scalingListNum[sizeId]; listId++) |
---|
| 2602 | { |
---|
| 2603 | for(UInt qp = 0; qp < SCALING_LIST_REM_NUM; qp++) |
---|
| 2604 | { |
---|
| 2605 | if(m_quantCoef [sizeId][listId][qp]) delete [] m_quantCoef [sizeId][listId][qp]; |
---|
| 2606 | if(m_dequantCoef [sizeId][listId][qp]) delete [] m_dequantCoef [sizeId][listId][qp]; |
---|
| 2607 | if(m_errScale [sizeId][listId][qp]) delete [] m_errScale [sizeId][listId][qp]; |
---|
| 2608 | } |
---|
| 2609 | } |
---|
| 2610 | } |
---|
| 2611 | } |
---|
| 2612 | |
---|
| 2613 | //! \} |
---|