[5] | 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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[1313] | 4 | * granted under this license. |
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[5] | 5 | * |
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[1313] | 6 | * Copyright (c) 2010-2015, ITU/ISO/IEC |
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[5] | 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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[56] | 17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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[5] | 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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[2] | 33 | |
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| 34 | /** \file TAppDecTop.cpp |
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| 35 | \brief Decoder application class |
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| 36 | */ |
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| 37 | |
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| 38 | #include <list> |
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[56] | 39 | #include <vector> |
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[2] | 40 | #include <stdio.h> |
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| 41 | #include <fcntl.h> |
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| 42 | #include <assert.h> |
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| 43 | |
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| 44 | #include "TAppDecTop.h" |
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[56] | 45 | #include "TLibDecoder/AnnexBread.h" |
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| 46 | #include "TLibDecoder/NALread.h" |
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[1313] | 47 | #if RExt__DECODER_DEBUG_BIT_STATISTICS |
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| 48 | #include "TLibCommon/TComCodingStatistics.h" |
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| 49 | #endif |
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[2] | 50 | |
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[56] | 51 | //! \ingroup TAppDecoder |
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| 52 | //! \{ |
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[2] | 53 | |
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| 54 | // ==================================================================================================================== |
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| 55 | // Constructor / destructor / initialization / destroy |
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| 56 | // ==================================================================================================================== |
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| 57 | |
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| 58 | TAppDecTop::TAppDecTop() |
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[1313] | 59 | #if !NH_MV |
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[608] | 60 | : m_iPOCLastDisplay(-MAX_INT) |
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| 61 | #else |
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| 62 | : m_numDecoders( 0 ) |
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| 63 | #endif |
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[2] | 64 | { |
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[1313] | 65 | #if NH_MV |
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[1321] | 66 | for (Int i = 0; i < MAX_NUM_LAYER_IDS; i++) |
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[738] | 67 | { |
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[1321] | 68 | m_layerIdToDecIdx [i] = -1; |
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| 69 | m_layerInitilizedFlag [i] = false; |
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| 70 | m_eosInLayer [i] = false; |
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| 71 | m_firstPicInLayerDecodedFlag [i] = false; |
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| 72 | m_pocDecrementedInDpbFlag [i] = false; |
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| 73 | m_decodingOrder [i] = 0; |
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| 74 | m_lastPresentPocResetIdc [i] = MIN_INT; |
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| 75 | m_firstPicInPocResettingPeriodReceived[i] = true; |
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| 76 | m_noRaslOutputFlagAssocIrap [i] = false; |
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[738] | 77 | } |
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[1321] | 78 | |
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| 79 | m_curPic = NULL; |
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| 80 | m_vps = NULL; |
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| 81 | m_sps = NULL; |
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| 82 | m_pps = NULL; |
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| 83 | m_initilizedFromVPS = false; |
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| 84 | m_firstSliceInBitstream = true; |
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| 85 | m_newVpsActivatedbyCurAu = false; |
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| 86 | m_newVpsActivatedbyCurPic = false; |
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| 87 | m_handleCraAsBlaFlag = false; |
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| 88 | m_handleCraAsBlaFlagSetByExtMeans = false; |
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| 89 | m_noClrasOutputFlag = false; |
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| 90 | m_noClrasOutputFlagSetByExtMeans = false; |
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| 91 | m_layerResetFlag = false; |
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| 92 | m_totalNumofPicsReceived = 0; |
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| 93 | m_cvsStartFound = false; |
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[608] | 94 | #endif |
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[1313] | 95 | #if NH_3D |
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[1321] | 96 | m_pScaleOffsetFile = 0; |
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[608] | 97 | #endif |
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[2] | 98 | } |
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| 99 | |
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| 100 | Void TAppDecTop::create() |
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| 101 | { |
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[1321] | 102 | #if NH_MV |
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| 103 | #if ENC_DEC_TRACE |
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| 104 | if ( g_hTrace == NULL ) |
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| 105 | { |
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| 106 | g_hTrace = fopen( "TraceDec.txt", "wb" ); |
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| 107 | g_bJustDoIt = g_bEncDecTraceDisable; |
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| 108 | g_nSymbolCounter = 0; |
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| 109 | } |
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| 110 | #endif |
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| 111 | #endif |
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[2] | 112 | } |
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| 113 | |
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| 114 | Void TAppDecTop::destroy() |
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| 115 | { |
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[1313] | 116 | #if NH_MV |
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| 117 | // destroy internal classes |
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| 118 | xDestroyDecLib(); |
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| 119 | #endif |
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| 120 | |
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[608] | 121 | if (m_pchBitstreamFile) |
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| 122 | { |
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| 123 | free (m_pchBitstreamFile); |
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| 124 | m_pchBitstreamFile = NULL; |
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| 125 | } |
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[1313] | 126 | #if NH_MV |
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[608] | 127 | for (Int decIdx = 0; decIdx < m_numDecoders; decIdx++) |
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| 128 | { |
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| 129 | if (m_pchReconFiles[decIdx]) |
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| 130 | { |
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| 131 | free (m_pchReconFiles[decIdx]); |
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| 132 | m_pchReconFiles[decIdx] = NULL; |
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| 133 | } |
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| 134 | } |
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| 135 | #endif |
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| 136 | if (m_pchReconFile) |
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| 137 | { |
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| 138 | free (m_pchReconFile); |
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| 139 | m_pchReconFile = NULL; |
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| 140 | } |
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[1313] | 141 | #if NH_3D |
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[608] | 142 | if (m_pchScaleOffsetFile) |
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| 143 | { |
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| 144 | free (m_pchScaleOffsetFile); |
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[1321] | 145 | m_pchScaleOffsetFile = NULL; |
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[608] | 146 | } |
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| 147 | #endif |
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[2] | 148 | } |
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| 149 | |
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| 150 | // ==================================================================================================================== |
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| 151 | // Public member functions |
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| 152 | // ==================================================================================================================== |
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| 153 | |
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| 154 | /** |
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| 155 | - create internal class |
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| 156 | - initialize internal class |
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| 157 | - until the end of the bitstream, call decoding function in TDecTop class |
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| 158 | - delete allocated buffers |
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| 159 | - destroy internal class |
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| 160 | . |
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| 161 | */ |
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[1321] | 162 | |
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| 163 | #if NH_MV |
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[2] | 164 | Void TAppDecTop::decode() |
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| 165 | { |
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[1321] | 166 | // create & initialize internal classes |
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| 167 | xInitFileIO (); |
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| 168 | xCreateDecLib(); |
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| 169 | xInitDecLib (); |
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| 170 | |
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| 171 | InputByteStream bytestream(m_bitstreamFile); |
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| 172 | |
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| 173 | while ( m_bitstreamFile ) |
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| 174 | { |
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| 175 | AnnexBStats stats = AnnexBStats(); |
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| 176 | InputNALUnit nalu; |
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| 177 | |
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| 178 | byteStreamNALUnit(bytestream, nalu.getBitstream().getFifo(), stats); |
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| 179 | |
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| 180 | if (nalu.getBitstream().getFifo().empty()) |
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| 181 | { |
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| 182 | /* this can happen if the following occur: |
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| 183 | * - empty input file |
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| 184 | * - two back-to-back start_code_prefixes |
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| 185 | * - start_code_prefix immediately followed by EOF |
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| 186 | */ |
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| 187 | fprintf(stderr, "Warning: Attempt to decode an empty NAL unit\n"); |
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| 188 | } |
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| 189 | else |
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| 190 | { |
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| 191 | read(nalu); |
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| 192 | |
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| 193 | if ( m_printReceivedNalus ) |
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| 194 | { |
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| 195 | std::cout << "Received NAL unit: "; |
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| 196 | nalu.print(); |
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| 197 | std::cout << std::endl; |
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| 198 | } |
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| 199 | |
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| 200 | if ( xExtractAndRewrite( &nalu ) |
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| 201 | && nalu.m_nuhLayerId <= MAX_NUM_LAYER_IDS-1 |
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| 202 | && !(nalu.m_nalUnitType == NAL_UNIT_VPS && nalu.m_nuhLayerId > 0) |
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| 203 | && !(nalu.m_nalUnitType == NAL_UNIT_EOB && nalu.m_nuhLayerId > 0) |
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| 204 | ) |
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| 205 | { |
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| 206 | xGetDecoderIdx( nalu.m_nuhLayerId , true ); |
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| 207 | if( nalu.isSlice() ) |
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| 208 | { |
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| 209 | xProcessVclNalu ( nalu ); |
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| 210 | } |
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| 211 | else |
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| 212 | { |
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| 213 | xProcessNonVclNalu( nalu ); |
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| 214 | } |
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| 215 | } |
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| 216 | } |
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| 217 | } |
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| 218 | xTerminateDecoding(); |
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| 219 | } |
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| 220 | #endif |
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| 221 | |
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| 222 | #if !NH_MV |
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| 223 | Void TAppDecTop::decode() |
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| 224 | { |
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[608] | 225 | Int poc; |
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| 226 | TComList<TComPic*>* pcListPic = NULL; |
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[210] | 227 | |
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[56] | 228 | ifstream bitstreamFile(m_pchBitstreamFile, ifstream::in | ifstream::binary); |
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| 229 | if (!bitstreamFile) |
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| 230 | { |
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| 231 | fprintf(stderr, "\nfailed to open bitstream file `%s' for reading\n", m_pchBitstreamFile); |
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| 232 | exit(EXIT_FAILURE); |
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| 233 | } |
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[1313] | 234 | |
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[56] | 235 | InputByteStream bytestream(bitstreamFile); |
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| 236 | |
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[1313] | 237 | if (!m_outputDecodedSEIMessagesFilename.empty() && m_outputDecodedSEIMessagesFilename!="-") |
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| 238 | { |
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| 239 | m_seiMessageFileStream.open(m_outputDecodedSEIMessagesFilename.c_str(), std::ios::out); |
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| 240 | if (!m_seiMessageFileStream.is_open() || !m_seiMessageFileStream.good()) |
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| 241 | { |
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| 242 | fprintf(stderr, "\nUnable to open file `%s' for writing decoded SEI messages\n", m_outputDecodedSEIMessagesFilename.c_str()); |
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| 243 | exit(EXIT_FAILURE); |
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| 244 | } |
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| 245 | } |
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| 246 | |
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[608] | 247 | // create & initialize internal classes |
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| 248 | xCreateDecLib(); |
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| 249 | xInitDecLib (); |
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[1321] | 250 | |
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[608] | 251 | m_iPOCLastDisplay += m_iSkipFrame; // set the last displayed POC correctly for skip forward. |
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| 252 | |
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| 253 | // main decoder loop |
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[655] | 254 | Bool openedReconFile = false; // reconstruction file not yet opened. (must be performed after SPS is seen) |
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[1313] | 255 | Bool loopFiltered = false; |
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[872] | 256 | |
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[56] | 257 | while (!!bitstreamFile) |
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[2] | 258 | { |
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[56] | 259 | /* location serves to work around a design fault in the decoder, whereby |
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| 260 | * the process of reading a new slice that is the first slice of a new frame |
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| 261 | * requires the TDecTop::decode() method to be called again with the same |
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| 262 | * nal unit. */ |
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[1313] | 263 | #if RExt__DECODER_DEBUG_BIT_STATISTICS |
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| 264 | TComCodingStatistics::TComCodingStatisticsData backupStats(TComCodingStatistics::GetStatistics()); |
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| 265 | streampos location = bitstreamFile.tellg() - streampos(bytestream.GetNumBufferedBytes()); |
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| 266 | #else |
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[56] | 267 | streampos location = bitstreamFile.tellg(); |
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[1313] | 268 | #endif |
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[56] | 269 | AnnexBStats stats = AnnexBStats(); |
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[1313] | 270 | |
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[56] | 271 | InputNALUnit nalu; |
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[1313] | 272 | byteStreamNALUnit(bytestream, nalu.getBitstream().getFifo(), stats); |
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[56] | 273 | |
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| 274 | // call actual decoding function |
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[608] | 275 | Bool bNewPicture = false; |
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[1313] | 276 | if (nalu.getBitstream().getFifo().empty()) |
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[2] | 277 | { |
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[56] | 278 | /* this can happen if the following occur: |
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| 279 | * - empty input file |
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| 280 | * - two back-to-back start_code_prefixes |
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| 281 | * - start_code_prefix immediately followed by EOF |
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| 282 | */ |
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| 283 | fprintf(stderr, "Warning: Attempt to decode an empty NAL unit\n"); |
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[2] | 284 | } |
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| 285 | else |
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| 286 | { |
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[1313] | 287 | read(nalu); |
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[608] | 288 | |
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| 289 | if( (m_iMaxTemporalLayer >= 0 && nalu.m_temporalId > m_iMaxTemporalLayer) || !isNaluWithinTargetDecLayerIdSet(&nalu) ) |
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[210] | 290 | { |
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[655] | 291 | bNewPicture = false; |
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[210] | 292 | } |
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[608] | 293 | else |
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[2] | 294 | { |
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[608] | 295 | bNewPicture = m_cTDecTop.decode(nalu, m_iSkipFrame, m_iPOCLastDisplay); |
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| 296 | if (bNewPicture) |
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[42] | 297 | { |
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[56] | 298 | bitstreamFile.clear(); |
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| 299 | /* location points to the current nalunit payload[1] due to the |
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| 300 | * need for the annexB parser to read three extra bytes. |
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| 301 | * [1] except for the first NAL unit in the file |
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| 302 | * (but bNewPicture doesn't happen then) */ |
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[1313] | 303 | #if RExt__DECODER_DEBUG_BIT_STATISTICS |
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| 304 | bitstreamFile.seekg(location); |
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| 305 | bytestream.reset(); |
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| 306 | TComCodingStatistics::SetStatistics(backupStats); |
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| 307 | #else |
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[56] | 308 | bitstreamFile.seekg(location-streamoff(3)); |
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| 309 | bytestream.reset(); |
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[1313] | 310 | #endif |
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[42] | 311 | } |
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| 312 | } |
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[56] | 313 | } |
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[1313] | 314 | |
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| 315 | if ( (bNewPicture || !bitstreamFile || nalu.m_nalUnitType == NAL_UNIT_EOS) && |
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[1321] | 316 | |
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[1313] | 317 | !m_cTDecTop.getFirstSliceInSequence () ) |
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| 318 | |
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[56] | 319 | { |
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[872] | 320 | if (!loopFiltered || bitstreamFile) |
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| 321 | { |
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| 322 | m_cTDecTop.executeLoopFilters(poc, pcListPic); |
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| 323 | } |
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| 324 | loopFiltered = (nalu.m_nalUnitType == NAL_UNIT_EOS); |
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[1313] | 325 | if (nalu.m_nalUnitType == NAL_UNIT_EOS) |
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| 326 | { |
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| 327 | m_cTDecTop.setFirstSliceInSequence(true); |
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| 328 | } |
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[56] | 329 | } |
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[1313] | 330 | else if ( (bNewPicture || !bitstreamFile || nalu.m_nalUnitType == NAL_UNIT_EOS ) && |
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[1321] | 331 | m_cTDecTop.getFirstSliceInSequence () ) |
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[964] | 332 | { |
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[1313] | 333 | m_cTDecTop.setFirstSliceInPicture (true); |
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[1321] | 334 | } |
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[1313] | 335 | |
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[608] | 336 | if( pcListPic ) |
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| 337 | { |
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[1313] | 338 | if ( m_pchReconFile && !openedReconFile ) |
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[2] | 339 | { |
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[1313] | 340 | const BitDepths &bitDepths=pcListPic->front()->getPicSym()->getSPS().getBitDepths(); // use bit depths of first reconstructed picture. |
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| 341 | for (UInt channelType = 0; channelType < MAX_NUM_CHANNEL_TYPE; channelType++) |
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| 342 | { |
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| 343 | if (m_outputBitDepth[channelType] == 0) |
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| 344 | { |
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| 345 | m_outputBitDepth[channelType] = bitDepths.recon[channelType]; |
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| 346 | } |
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| 347 | } |
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| 348 | m_cTVideoIOYuvReconFile.open( m_pchReconFile, true, m_outputBitDepth, m_outputBitDepth, bitDepths.recon ); // write mode |
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| 349 | openedReconFile = true; |
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[608] | 350 | } |
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[964] | 351 | // write reconstruction to file |
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| 352 | if( bNewPicture ) |
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| 353 | { |
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| 354 | xWriteOutput( pcListPic, nalu.m_temporalId ); |
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| 355 | } |
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| 356 | if ( (bNewPicture || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_CRA) && m_cTDecTop.getNoOutputPriorPicsFlag() ) |
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| 357 | { |
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| 358 | m_cTDecTop.checkNoOutputPriorPics( pcListPic ); |
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| 359 | m_cTDecTop.setNoOutputPriorPicsFlag (false); |
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| 360 | } |
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[1313] | 361 | |
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| 362 | if ( bNewPicture && |
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[608] | 363 | ( nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_IDR_W_RADL |
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| 364 | || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_IDR_N_LP |
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| 365 | || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_BLA_N_LP |
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| 366 | || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_BLA_W_RADL |
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| 367 | || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_BLA_W_LP ) ) |
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| 368 | { |
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[1321] | 369 | |
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[608] | 370 | xFlushOutput( pcListPic ); |
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| 371 | } |
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[872] | 372 | if (nalu.m_nalUnitType == NAL_UNIT_EOS) |
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| 373 | { |
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[1321] | 374 | |
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[1313] | 375 | xWriteOutput( pcListPic, nalu.m_temporalId ); |
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| 376 | m_cTDecTop.setFirstSliceInPicture (false); |
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[872] | 377 | } |
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[1313] | 378 | // write reconstruction to file -- for additional bumping as defined in C.5.2.3 |
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[964] | 379 | if(!bNewPicture && nalu.m_nalUnitType >= NAL_UNIT_CODED_SLICE_TRAIL_N && nalu.m_nalUnitType <= NAL_UNIT_RESERVED_VCL31) |
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[2] | 380 | { |
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[964] | 381 | xWriteOutput( pcListPic, nalu.m_temporalId ); |
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[2] | 382 | } |
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| 383 | } |
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[608] | 384 | } |
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[1321] | 385 | |
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[608] | 386 | xFlushOutput( pcListPic ); |
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| 387 | // delete buffers |
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| 388 | m_cTDecTop.deletePicBuffer(); |
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| 389 | // destroy internal classes |
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[2] | 390 | xDestroyDecLib(); |
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[1321] | 391 | } |
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[1313] | 392 | #endif |
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[2] | 393 | |
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| 394 | // ==================================================================================================================== |
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| 395 | // Protected member functions |
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| 396 | // ==================================================================================================================== |
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| 397 | |
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[608] | 398 | Void TAppDecTop::xCreateDecLib() |
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| 399 | { |
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[1313] | 400 | #if NH_MV |
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[608] | 401 | // initialize global variables |
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[1321] | 402 | initROM(); |
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[1313] | 403 | #if NH_3D_DMM |
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[608] | 404 | initWedgeLists(); |
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| 405 | #endif |
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| 406 | #else |
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| 407 | // create decoder class |
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| 408 | m_cTDecTop.create(); |
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| 409 | #endif |
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| 410 | } |
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| 411 | |
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[2] | 412 | Void TAppDecTop::xDestroyDecLib() |
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| 413 | { |
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[1313] | 414 | #if NH_MV |
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[608] | 415 | // destroy ROM |
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| 416 | destroyROM(); |
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[2] | 417 | |
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[608] | 418 | for(Int decIdx = 0; decIdx < m_numDecoders ; decIdx++) |
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[2] | 419 | { |
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[608] | 420 | if( m_tVideoIOYuvReconFile[decIdx] ) |
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[56] | 421 | { |
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[608] | 422 | m_tVideoIOYuvReconFile[decIdx]->close(); |
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[1321] | 423 | delete m_tVideoIOYuvReconFile[decIdx]; |
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[608] | 424 | m_tVideoIOYuvReconFile[decIdx] = NULL ; |
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[56] | 425 | } |
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[2] | 426 | |
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[608] | 427 | if( m_tDecTop[decIdx] ) |
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[56] | 428 | { |
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[1321] | 429 | #if !NH_MV |
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[608] | 430 | m_tDecTop[decIdx]->deletePicBuffer(); |
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[1321] | 431 | #endif |
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[608] | 432 | m_tDecTop[decIdx]->destroy() ; |
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[56] | 433 | } |
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[1321] | 434 | delete m_tDecTop[decIdx] ; |
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[608] | 435 | m_tDecTop[decIdx] = NULL ; |
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[2] | 436 | } |
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[608] | 437 | #else |
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| 438 | if ( m_pchReconFile ) |
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| 439 | { |
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| 440 | m_cTVideoIOYuvReconFile. close(); |
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| 441 | } |
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[1313] | 442 | |
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[608] | 443 | // destroy decoder class |
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| 444 | m_cTDecTop.destroy(); |
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| 445 | #endif |
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[1313] | 446 | #if NH_3D |
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[57] | 447 | m_cCamParsCollector.uninit(); |
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[1321] | 448 | if( m_pScaleOffsetFile ) |
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| 449 | { |
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| 450 | ::fclose( m_pScaleOffsetFile ); |
---|
[57] | 451 | } |
---|
[608] | 452 | #endif |
---|
[56] | 453 | } |
---|
[2] | 454 | |
---|
[608] | 455 | Void TAppDecTop::xInitDecLib() |
---|
[56] | 456 | { |
---|
[1313] | 457 | |
---|
| 458 | #if NH_3D |
---|
| 459 | m_cCamParsCollector.setCodeScaleOffsetFile( m_pScaleOffsetFile ); |
---|
| 460 | #endif |
---|
[1321] | 461 | #if NH_MV |
---|
| 462 | m_dpb.setPrintPicOutput(m_printPicOutput); |
---|
| 463 | #else |
---|
[608] | 464 | // initialize decoder class |
---|
| 465 | m_cTDecTop.init(); |
---|
| 466 | m_cTDecTop.setDecodedPictureHashSEIEnabled(m_decodedPictureHashSEIEnabled); |
---|
[1313] | 467 | #if O0043_BEST_EFFORT_DECODING |
---|
| 468 | m_cTDecTop.setForceDecodeBitDepth(m_forceDecodeBitDepth); |
---|
[608] | 469 | #endif |
---|
[1313] | 470 | if (!m_outputDecodedSEIMessagesFilename.empty()) |
---|
| 471 | { |
---|
| 472 | std::ostream &os=m_seiMessageFileStream.is_open() ? m_seiMessageFileStream : std::cout; |
---|
| 473 | m_cTDecTop.setDecodedSEIMessageOutputStream(&os); |
---|
| 474 | } |
---|
| 475 | #endif |
---|
[608] | 476 | } |
---|
| 477 | |
---|
[1321] | 478 | |
---|
| 479 | #if !NH_MV |
---|
[608] | 480 | /** \param pcListPic list of pictures to be written to file |
---|
[1313] | 481 | \param tId temporal sub-layer ID |
---|
[608] | 482 | */ |
---|
| 483 | Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, UInt tId ) |
---|
| 484 | { |
---|
[872] | 485 | if (pcListPic->empty()) |
---|
| 486 | { |
---|
| 487 | return; |
---|
| 488 | } |
---|
| 489 | |
---|
[56] | 490 | TComList<TComPic*>::iterator iterPic = pcListPic->begin(); |
---|
[655] | 491 | Int numPicsNotYetDisplayed = 0; |
---|
[964] | 492 | Int dpbFullness = 0; |
---|
[1313] | 493 | const TComSPS* activeSPS = &(pcListPic->front()->getPicSym()->getSPS()); |
---|
| 494 | |
---|
[964] | 495 | UInt numReorderPicsHighestTid; |
---|
| 496 | UInt maxDecPicBufferingHighestTid; |
---|
| 497 | UInt maxNrSublayers = activeSPS->getMaxTLayers(); |
---|
| 498 | |
---|
| 499 | if(m_iMaxTemporalLayer == -1 || m_iMaxTemporalLayer >= maxNrSublayers) |
---|
| 500 | { |
---|
| 501 | numReorderPicsHighestTid = activeSPS->getNumReorderPics(maxNrSublayers-1); |
---|
[1321] | 502 | maxDecPicBufferingHighestTid = activeSPS->getMaxDecPicBuffering(maxNrSublayers-1); |
---|
[964] | 503 | } |
---|
| 504 | else |
---|
| 505 | { |
---|
| 506 | numReorderPicsHighestTid = activeSPS->getNumReorderPics(m_iMaxTemporalLayer); |
---|
[1321] | 507 | maxDecPicBufferingHighestTid = activeSPS->getMaxDecPicBuffering(m_iMaxTemporalLayer); |
---|
[964] | 508 | } |
---|
[1313] | 509 | |
---|
[56] | 510 | while (iterPic != pcListPic->end()) |
---|
[2] | 511 | { |
---|
[56] | 512 | TComPic* pcPic = *(iterPic); |
---|
[608] | 513 | if(pcPic->getOutputMark() && pcPic->getPOC() > m_iPOCLastDisplay) |
---|
[56] | 514 | { |
---|
[1313] | 515 | numPicsNotYetDisplayed++; |
---|
[964] | 516 | dpbFullness++; |
---|
[56] | 517 | } |
---|
[964] | 518 | else if(pcPic->getSlice( 0 )->isReferenced()) |
---|
| 519 | { |
---|
| 520 | dpbFullness++; |
---|
| 521 | } |
---|
[56] | 522 | iterPic++; |
---|
[2] | 523 | } |
---|
[1313] | 524 | |
---|
| 525 | iterPic = pcListPic->begin(); |
---|
| 526 | |
---|
[655] | 527 | if (numPicsNotYetDisplayed>2) |
---|
| 528 | { |
---|
| 529 | iterPic++; |
---|
| 530 | } |
---|
[1313] | 531 | |
---|
[655] | 532 | TComPic* pcPic = *(iterPic); |
---|
| 533 | if (numPicsNotYetDisplayed>2 && pcPic->isField()) //Field Decoding |
---|
[2] | 534 | { |
---|
[655] | 535 | TComList<TComPic*>::iterator endPic = pcListPic->end(); |
---|
| 536 | endPic--; |
---|
| 537 | iterPic = pcListPic->begin(); |
---|
| 538 | while (iterPic != endPic) |
---|
| 539 | { |
---|
| 540 | TComPic* pcPicTop = *(iterPic); |
---|
| 541 | iterPic++; |
---|
| 542 | TComPic* pcPicBottom = *(iterPic); |
---|
[1313] | 543 | |
---|
| 544 | if ( pcPicTop->getOutputMark() && pcPicBottom->getOutputMark() && |
---|
[964] | 545 | (numPicsNotYetDisplayed > numReorderPicsHighestTid || dpbFullness > maxDecPicBufferingHighestTid) && |
---|
| 546 | (!(pcPicTop->getPOC()%2) && pcPicBottom->getPOC() == pcPicTop->getPOC()+1) && |
---|
| 547 | (pcPicTop->getPOC() == m_iPOCLastDisplay+1 || m_iPOCLastDisplay < 0)) |
---|
[655] | 548 | { |
---|
| 549 | // write to file |
---|
| 550 | numPicsNotYetDisplayed = numPicsNotYetDisplayed-2; |
---|
| 551 | if ( m_pchReconFile ) |
---|
| 552 | { |
---|
| 553 | const Window &conf = pcPicTop->getConformanceWindow(); |
---|
[1313] | 554 | const Window defDisp = m_respectDefDispWindow ? pcPicTop->getDefDisplayWindow() : Window(); |
---|
| 555 | const Bool isTff = pcPicTop->isTopField(); |
---|
[655] | 556 | |
---|
[1313] | 557 | Bool display = true; |
---|
| 558 | if( m_decodedNoDisplaySEIEnabled ) |
---|
| 559 | { |
---|
| 560 | SEIMessages noDisplay = getSeisByType(pcPic->getSEIs(), SEI::NO_DISPLAY ); |
---|
| 561 | const SEINoDisplay *nd = ( noDisplay.size() > 0 ) ? (SEINoDisplay*) *(noDisplay.begin()) : NULL; |
---|
| 562 | if( (nd != NULL) && nd->m_noDisplay ) |
---|
| 563 | { |
---|
| 564 | display = false; |
---|
| 565 | } |
---|
| 566 | } |
---|
| 567 | |
---|
| 568 | if (display) |
---|
| 569 | { |
---|
| 570 | m_cTVideoIOYuvReconFile.write( pcPicTop->getPicYuvRec(), pcPicBottom->getPicYuvRec(), |
---|
| 571 | m_outputColourSpaceConvert, |
---|
| 572 | conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(), |
---|
| 573 | conf.getWindowRightOffset() + defDisp.getWindowRightOffset(), |
---|
| 574 | conf.getWindowTopOffset() + defDisp.getWindowTopOffset(), |
---|
| 575 | conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset(), NUM_CHROMA_FORMAT, isTff ); |
---|
| 576 | } |
---|
[655] | 577 | } |
---|
[1313] | 578 | |
---|
[655] | 579 | // update POC of display order |
---|
| 580 | m_iPOCLastDisplay = pcPicBottom->getPOC(); |
---|
[1313] | 581 | |
---|
[655] | 582 | // erase non-referenced picture in the reference picture list after display |
---|
| 583 | if ( !pcPicTop->getSlice(0)->isReferenced() && pcPicTop->getReconMark() == true ) |
---|
| 584 | { |
---|
| 585 | pcPicTop->setReconMark(false); |
---|
[1313] | 586 | |
---|
[655] | 587 | // mark it should be extended later |
---|
| 588 | pcPicTop->getPicYuvRec()->setBorderExtension( false ); |
---|
| 589 | } |
---|
| 590 | if ( !pcPicBottom->getSlice(0)->isReferenced() && pcPicBottom->getReconMark() == true ) |
---|
| 591 | { |
---|
| 592 | pcPicBottom->setReconMark(false); |
---|
[1313] | 593 | |
---|
[655] | 594 | // mark it should be extended later |
---|
| 595 | pcPicBottom->getPicYuvRec()->setBorderExtension( false ); |
---|
| 596 | } |
---|
| 597 | pcPicTop->setOutputMark(false); |
---|
| 598 | pcPicBottom->setOutputMark(false); |
---|
[56] | 599 | } |
---|
[655] | 600 | } |
---|
| 601 | } |
---|
| 602 | else if (!pcPic->isField()) //Frame Decoding |
---|
| 603 | { |
---|
| 604 | iterPic = pcListPic->begin(); |
---|
[1313] | 605 | |
---|
[655] | 606 | while (iterPic != pcListPic->end()) |
---|
| 607 | { |
---|
| 608 | pcPic = *(iterPic); |
---|
| 609 | |
---|
[964] | 610 | if(pcPic->getOutputMark() && pcPic->getPOC() > m_iPOCLastDisplay && |
---|
| 611 | (numPicsNotYetDisplayed > numReorderPicsHighestTid || dpbFullness > maxDecPicBufferingHighestTid)) |
---|
[655] | 612 | { |
---|
| 613 | // write to file |
---|
[1313] | 614 | numPicsNotYetDisplayed--; |
---|
[964] | 615 | if(pcPic->getSlice(0)->isReferenced() == false) |
---|
| 616 | { |
---|
| 617 | dpbFullness--; |
---|
| 618 | } |
---|
[655] | 619 | if ( m_pchReconFile ) |
---|
| 620 | { |
---|
[1313] | 621 | const Window &conf = pcPic->getConformanceWindow(); |
---|
| 622 | const Window defDisp = m_respectDefDispWindow ? pcPic->getDefDisplayWindow() : Window(); |
---|
[1321] | 623 | |
---|
[655] | 624 | m_cTVideoIOYuvReconFile.write( pcPic->getPicYuvRec(), |
---|
[1313] | 625 | m_outputColourSpaceConvert, |
---|
| 626 | conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(), |
---|
| 627 | conf.getWindowRightOffset() + defDisp.getWindowRightOffset(), |
---|
| 628 | conf.getWindowTopOffset() + defDisp.getWindowTopOffset(), |
---|
[1321] | 629 | conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset(), |
---|
| 630 | NUM_CHROMA_FORMAT, m_bClipOutputVideoToRec709Range ); |
---|
[655] | 631 | } |
---|
[1313] | 632 | |
---|
[655] | 633 | // update POC of display order |
---|
| 634 | m_iPOCLastDisplay = pcPic->getPOC(); |
---|
[1313] | 635 | |
---|
[655] | 636 | // erase non-referenced picture in the reference picture list after display |
---|
| 637 | if ( !pcPic->getSlice(0)->isReferenced() && pcPic->getReconMark() == true ) |
---|
| 638 | { |
---|
| 639 | pcPic->setReconMark(false); |
---|
[1313] | 640 | |
---|
[655] | 641 | // mark it should be extended later |
---|
| 642 | pcPic->getPicYuvRec()->setBorderExtension( false ); |
---|
| 643 | } |
---|
| 644 | pcPic->setOutputMark(false); |
---|
[56] | 645 | } |
---|
[1313] | 646 | |
---|
[655] | 647 | iterPic++; |
---|
[56] | 648 | } |
---|
[2] | 649 | } |
---|
| 650 | } |
---|
[1313] | 651 | |
---|
[2] | 652 | /** \param pcListPic list of pictures to be written to file |
---|
| 653 | */ |
---|
[608] | 654 | Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic ) |
---|
[2] | 655 | { |
---|
[872] | 656 | if(!pcListPic || pcListPic->empty()) |
---|
[56] | 657 | { |
---|
| 658 | return; |
---|
[655] | 659 | } |
---|
[2] | 660 | TComList<TComPic*>::iterator iterPic = pcListPic->begin(); |
---|
[1313] | 661 | |
---|
[56] | 662 | iterPic = pcListPic->begin(); |
---|
[655] | 663 | TComPic* pcPic = *(iterPic); |
---|
[1313] | 664 | |
---|
[655] | 665 | if (pcPic->isField()) //Field Decoding |
---|
[2] | 666 | { |
---|
[655] | 667 | TComList<TComPic*>::iterator endPic = pcListPic->end(); |
---|
| 668 | endPic--; |
---|
| 669 | TComPic *pcPicTop, *pcPicBottom = NULL; |
---|
| 670 | while (iterPic != endPic) |
---|
[2] | 671 | { |
---|
[655] | 672 | pcPicTop = *(iterPic); |
---|
| 673 | iterPic++; |
---|
| 674 | pcPicBottom = *(iterPic); |
---|
[1313] | 675 | |
---|
[655] | 676 | if ( pcPicTop->getOutputMark() && pcPicBottom->getOutputMark() && !(pcPicTop->getPOC()%2) && (pcPicBottom->getPOC() == pcPicTop->getPOC()+1) ) |
---|
| 677 | { |
---|
| 678 | // write to file |
---|
[1321] | 679 | |
---|
[655] | 680 | if ( m_pchReconFile ) |
---|
| 681 | { |
---|
| 682 | const Window &conf = pcPicTop->getConformanceWindow(); |
---|
[1313] | 683 | const Window defDisp = m_respectDefDispWindow ? pcPicTop->getDefDisplayWindow() : Window(); |
---|
[655] | 684 | const Bool isTff = pcPicTop->isTopField(); |
---|
| 685 | m_cTVideoIOYuvReconFile.write( pcPicTop->getPicYuvRec(), pcPicBottom->getPicYuvRec(), |
---|
[1313] | 686 | m_outputColourSpaceConvert, |
---|
| 687 | conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(), |
---|
| 688 | conf.getWindowRightOffset() + defDisp.getWindowRightOffset(), |
---|
| 689 | conf.getWindowTopOffset() + defDisp.getWindowTopOffset(), |
---|
| 690 | conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset(), NUM_CHROMA_FORMAT, isTff ); |
---|
[655] | 691 | } |
---|
[1313] | 692 | |
---|
[655] | 693 | // update POC of display order |
---|
[1313] | 694 | m_iPOCLastDisplay = pcPicBottom->getPOC(); |
---|
[1321] | 695 | |
---|
[655] | 696 | // erase non-referenced picture in the reference picture list after display |
---|
| 697 | if ( !pcPicTop->getSlice(0)->isReferenced() && pcPicTop->getReconMark() == true ) |
---|
| 698 | { |
---|
| 699 | pcPicTop->setReconMark(false); |
---|
[1313] | 700 | |
---|
[655] | 701 | // mark it should be extended later |
---|
| 702 | pcPicTop->getPicYuvRec()->setBorderExtension( false ); |
---|
| 703 | } |
---|
| 704 | if ( !pcPicBottom->getSlice(0)->isReferenced() && pcPicBottom->getReconMark() == true ) |
---|
| 705 | { |
---|
| 706 | pcPicBottom->setReconMark(false); |
---|
[1313] | 707 | |
---|
[655] | 708 | // mark it should be extended later |
---|
| 709 | pcPicBottom->getPicYuvRec()->setBorderExtension( false ); |
---|
| 710 | } |
---|
| 711 | pcPicTop->setOutputMark(false); |
---|
| 712 | pcPicBottom->setOutputMark(false); |
---|
[1313] | 713 | |
---|
[655] | 714 | if(pcPicTop) |
---|
| 715 | { |
---|
| 716 | pcPicTop->destroy(); |
---|
| 717 | delete pcPicTop; |
---|
| 718 | pcPicTop = NULL; |
---|
| 719 | } |
---|
[2] | 720 | } |
---|
[655] | 721 | } |
---|
| 722 | if(pcPicBottom) |
---|
| 723 | { |
---|
| 724 | pcPicBottom->destroy(); |
---|
| 725 | delete pcPicBottom; |
---|
| 726 | pcPicBottom = NULL; |
---|
| 727 | } |
---|
| 728 | } |
---|
| 729 | else //Frame decoding |
---|
| 730 | { |
---|
| 731 | while (iterPic != pcListPic->end()) |
---|
| 732 | { |
---|
| 733 | pcPic = *(iterPic); |
---|
[1313] | 734 | |
---|
[655] | 735 | if ( pcPic->getOutputMark() ) |
---|
| 736 | { |
---|
| 737 | // write to file |
---|
| 738 | if ( m_pchReconFile ) |
---|
| 739 | { |
---|
[1313] | 740 | const Window &conf = pcPic->getConformanceWindow(); |
---|
| 741 | const Window defDisp = m_respectDefDispWindow ? pcPic->getDefDisplayWindow() : Window(); |
---|
[655] | 742 | m_cTVideoIOYuvReconFile.write( pcPic->getPicYuvRec(), |
---|
[1313] | 743 | m_outputColourSpaceConvert, |
---|
| 744 | conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(), |
---|
| 745 | conf.getWindowRightOffset() + defDisp.getWindowRightOffset(), |
---|
| 746 | conf.getWindowTopOffset() + defDisp.getWindowTopOffset(), |
---|
[1321] | 747 | conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset(), |
---|
| 748 | NUM_CHROMA_FORMAT, m_bClipOutputVideoToRec709Range ); |
---|
[655] | 749 | } |
---|
[1313] | 750 | |
---|
[655] | 751 | // update POC of display order |
---|
| 752 | m_iPOCLastDisplay = pcPic->getPOC(); |
---|
| 753 | // erase non-referenced picture in the reference picture list after display |
---|
| 754 | if ( !pcPic->getSlice(0)->isReferenced() && pcPic->getReconMark() == true ) |
---|
| 755 | { |
---|
| 756 | pcPic->setReconMark(false); |
---|
[1313] | 757 | |
---|
[655] | 758 | // mark it should be extended later |
---|
| 759 | pcPic->getPicYuvRec()->setBorderExtension( false ); |
---|
| 760 | } |
---|
| 761 | pcPic->setOutputMark(false); |
---|
[2] | 762 | } |
---|
[1313] | 763 | if(pcPic != NULL) |
---|
[655] | 764 | { |
---|
| 765 | pcPic->destroy(); |
---|
| 766 | delete pcPic; |
---|
| 767 | pcPic = NULL; |
---|
| 768 | } |
---|
| 769 | iterPic++; |
---|
[608] | 770 | } |
---|
[2] | 771 | } |
---|
[56] | 772 | pcListPic->clear(); |
---|
[608] | 773 | m_iPOCLastDisplay = -MAX_INT; |
---|
[1321] | 774 | } |
---|
[608] | 775 | #endif |
---|
| 776 | /** \param nalu Input nalu to check whether its LayerId is within targetDecLayerIdSet |
---|
| 777 | */ |
---|
[1321] | 778 | #if NH_MV |
---|
| 779 | Bool TAppDecTop::xIsNaluInTargetDecLayerIdSet( InputNALUnit* nalu ) |
---|
| 780 | #else |
---|
[608] | 781 | Bool TAppDecTop::isNaluWithinTargetDecLayerIdSet( InputNALUnit* nalu ) |
---|
[1321] | 782 | #endif |
---|
[2] | 783 | { |
---|
[608] | 784 | if ( m_targetDecLayerIdSet.size() == 0 ) // By default, the set is empty, meaning all LayerIds are allowed |
---|
[2] | 785 | { |
---|
[608] | 786 | return true; |
---|
[2] | 787 | } |
---|
[608] | 788 | for (std::vector<Int>::iterator it = m_targetDecLayerIdSet.begin(); it != m_targetDecLayerIdSet.end(); it++) |
---|
| 789 | { |
---|
[1313] | 790 | if ( nalu->m_nuhLayerId == (*it) ) |
---|
[56] | 791 | { |
---|
[608] | 792 | return true; |
---|
[56] | 793 | } |
---|
| 794 | } |
---|
[608] | 795 | return false; |
---|
[2] | 796 | } |
---|
| 797 | |
---|
[1313] | 798 | #if NH_MV |
---|
[1321] | 799 | |
---|
| 800 | Bool TAppDecTop::xExtractAndRewrite( InputNALUnit* nalu ) |
---|
| 801 | { |
---|
| 802 | Bool naluInSubStream; |
---|
| 803 | if ( !m_initilizedFromVPS ) |
---|
| 804 | { |
---|
| 805 | naluInSubStream = true; // No active VPS yet. Wait for slice activating one. |
---|
| 806 | } |
---|
| 807 | else |
---|
| 808 | { |
---|
| 809 | if ( m_decProcCvsg == CLAUSE_8 ) |
---|
| 810 | { |
---|
| 811 | // 8.1.2->clause 10 |
---|
| 812 | |
---|
| 813 | // sub-bitstream extraction process as specified in clause 10 |
---|
| 814 | naluInSubStream = true; |
---|
| 815 | if ( nalu->m_temporalId > m_highestTid || !xIsNaluInTargetDecLayerIdSet(nalu) ) |
---|
| 816 | { |
---|
| 817 | naluInSubStream = false; |
---|
| 818 | } |
---|
| 819 | } |
---|
| 820 | else |
---|
| 821 | { |
---|
| 822 | // F.8.1.2 |
---|
| 823 | Int targetDecLayerSetIdx = m_vps->olsIdxToLsIdx( m_targetOptLayerSetIdx ); |
---|
| 824 | if ( targetDecLayerSetIdx <= m_vps->getVpsNumLayerSetsMinus1() && m_vps->getVpsBaseLayerInternalFlag() ) |
---|
| 825 | { |
---|
| 826 | // - If TargetDecLayerSetIdx is less than or equal to vps_num_layer_sets_minus1 and |
---|
| 827 | // vps_base_layer_internal_flag is equal to 1, the following applies: |
---|
| 828 | // - The sub-bitstream extraction process as specified in clause 10 is applied with the CVSG, HighestTid and |
---|
| 829 | // TargetDecLayerIdList as inputs, and the output is assigned to a bitstream referred to as BitstreamToDecode. |
---|
| 830 | |
---|
| 831 | naluInSubStream = true; |
---|
| 832 | if ( nalu->m_temporalId > m_highestTid || !xIsNaluInTargetDecLayerIdSet(nalu) ) |
---|
| 833 | { |
---|
| 834 | naluInSubStream = false; |
---|
| 835 | } |
---|
| 836 | |
---|
| 837 | } |
---|
| 838 | else if ( targetDecLayerSetIdx <= m_vps->getVpsNumLayerSetsMinus1() && !m_vps->getVpsBaseLayerInternalFlag() ) |
---|
| 839 | { |
---|
| 840 | // - Otherwise, if TargetDecLayerSetIdx is less than or equal to vps_num_layer_sets_minus1 and vps_base_layer_internal_flag |
---|
| 841 | // is equal to 0, the following applies: |
---|
| 842 | // - The sub-bitstream extraction process as specified in clause F.10.1 is applied with the CVSG, HighestTid and |
---|
| 843 | // TargetDecLayerIdList as inputs, and the output is assigned to a bitstream referred to as BitstreamToDecode. |
---|
| 844 | |
---|
| 845 | naluInSubStream = true; |
---|
| 846 | if ( nalu->m_temporalId > m_highestTid || !xIsNaluInTargetDecLayerIdSet(nalu) ) |
---|
| 847 | { |
---|
| 848 | naluInSubStream = false; |
---|
| 849 | } |
---|
| 850 | } |
---|
| 851 | else if ( targetDecLayerSetIdx > m_vps->getVpsNumLayerSetsMinus1() && m_vps->getNumLayersInIdList( targetDecLayerSetIdx ) == 1 ) |
---|
| 852 | { |
---|
| 853 | // - Otherwise, if TargetDecLayerSetIdx is greater than vps_num_layer_sets_minus1 and |
---|
| 854 | // NumLayersInIdList[ TargetDecLayerSetIdx ] is equal to 1, the following applies: |
---|
| 855 | // - The independent non-base layer rewriting process of clause F.10.2 is applied with the CVSG, HighestTid and |
---|
| 856 | // TargetDecLayerIdList[ 0 ] as inputs, and the output is assigned to a bitstream referred to as BitstreamToDecode. |
---|
| 857 | |
---|
| 858 | Int assingedBaseLayerId = m_targetDecLayerIdSet[0]; |
---|
| 859 | naluInSubStream = true; |
---|
| 860 | |
---|
| 861 | if ( nalu->m_nalUnitType != NAL_UNIT_SPS && |
---|
| 862 | nalu->m_nalUnitType != NAL_UNIT_PPS && |
---|
| 863 | nalu->m_nalUnitType != NAL_UNIT_EOB && |
---|
| 864 | nalu->m_nuhLayerId != assingedBaseLayerId ) |
---|
| 865 | { |
---|
| 866 | naluInSubStream = false; |
---|
| 867 | } |
---|
| 868 | |
---|
| 869 | if ( ( nalu->m_nalUnitType == NAL_UNIT_SPS || nalu->m_nalUnitType != NAL_UNIT_PPS ) && |
---|
| 870 | !( nalu->m_nuhLayerId == 0 || nalu->m_nuhLayerId == assingedBaseLayerId ) ) |
---|
| 871 | { |
---|
| 872 | naluInSubStream = false; |
---|
| 873 | } |
---|
| 874 | |
---|
| 875 | if ( nalu->m_nalUnitType == NAL_UNIT_VPS ) |
---|
| 876 | { |
---|
| 877 | naluInSubStream = false; |
---|
| 878 | } |
---|
| 879 | |
---|
| 880 | if ( nalu->m_temporalId > m_highestTid ) |
---|
| 881 | { |
---|
| 882 | naluInSubStream = false; |
---|
| 883 | } |
---|
| 884 | |
---|
| 885 | // For now, don't do the layer id change here, but change smallest layer id. |
---|
| 886 | // To be verified. |
---|
| 887 | //if ( naluInSubStream ) |
---|
| 888 | //{ |
---|
| 889 | // nalu->m_nuhLayerId = 0; |
---|
| 890 | //} |
---|
| 891 | } |
---|
| 892 | else |
---|
| 893 | { |
---|
| 894 | // - Otherwise, the following applies: |
---|
| 895 | // - The sub-bitstream extraction process as specified in clause F.10.3 is applied with the CVSG, HighestTid and |
---|
| 896 | // TargetDecLayerIdList as inputs, and the output is assigned to a bitstream referred to as BitstreamToDecode. |
---|
| 897 | |
---|
| 898 | naluInSubStream = true; |
---|
| 899 | |
---|
| 900 | if ( nalu->m_nalUnitType != NAL_UNIT_VPS && |
---|
| 901 | nalu->m_nalUnitType != NAL_UNIT_SPS && |
---|
| 902 | nalu->m_nalUnitType != NAL_UNIT_PPS && |
---|
| 903 | nalu->m_nalUnitType != NAL_UNIT_EOS && |
---|
| 904 | nalu->m_nalUnitType != NAL_UNIT_EOB && |
---|
| 905 | !xIsNaluInTargetDecLayerIdSet(nalu) ) |
---|
| 906 | { |
---|
| 907 | naluInSubStream = false; |
---|
| 908 | } |
---|
| 909 | |
---|
| 910 | if ( ( nalu->m_nalUnitType == NAL_UNIT_VPS || |
---|
| 911 | nalu->m_nalUnitType == NAL_UNIT_SPS || |
---|
| 912 | nalu->m_nalUnitType == NAL_UNIT_PPS || |
---|
| 913 | nalu->m_nalUnitType == NAL_UNIT_EOS ) && |
---|
| 914 | !( nalu->m_nuhLayerId == 0 || xIsNaluInTargetDecLayerIdSet(nalu) ) |
---|
| 915 | ) |
---|
| 916 | { |
---|
| 917 | naluInSubStream = false; |
---|
| 918 | } |
---|
| 919 | |
---|
| 920 | if ( nalu->m_temporalId > m_highestTid ) |
---|
| 921 | { |
---|
| 922 | naluInSubStream = false; |
---|
| 923 | } |
---|
| 924 | // TBD: vps_base_layer_available_flag in each VPS is set equal to 0. |
---|
| 925 | } |
---|
| 926 | } |
---|
| 927 | } |
---|
| 928 | |
---|
| 929 | return naluInSubStream; |
---|
| 930 | } |
---|
| 931 | |
---|
| 932 | Void TAppDecTop::xProcessVclNalu( InputNALUnit nalu ) |
---|
| 933 | { |
---|
| 934 | TDecTop* dec = xGetDecoder( nalu ); |
---|
| 935 | |
---|
| 936 | // Decode slice header of slice of current or new picture. |
---|
| 937 | dec->decodeSliceHeader( nalu ); |
---|
| 938 | |
---|
| 939 | // Check if slice belongs to current or new picture |
---|
| 940 | Bool sliceIsFirstOfNewPicture = dec->getFirstSliceSegementInPicFlag(); |
---|
| 941 | |
---|
| 942 | if ( !xIsSkipVclNalu( nalu, sliceIsFirstOfNewPicture ) ) |
---|
| 943 | { |
---|
| 944 | if ( sliceIsFirstOfNewPicture ) |
---|
| 945 | { |
---|
| 946 | xDetectNewPocResettingPeriod( nalu ); |
---|
| 947 | Bool sliceIsFirstOfNewAU = xDetectNewAu( nalu ); |
---|
| 948 | xFinalizePreviousPictures ( sliceIsFirstOfNewAU ); |
---|
| 949 | xDecodeFirstSliceOfPicture( nalu, sliceIsFirstOfNewAU ); |
---|
| 950 | } |
---|
| 951 | else |
---|
| 952 | { |
---|
| 953 | xDecodeFollowSliceOfPicture( nalu ); |
---|
| 954 | } |
---|
| 955 | } |
---|
| 956 | } |
---|
| 957 | |
---|
| 958 | Bool TAppDecTop::xIsSkipVclNalu( InputNALUnit& nalu, Bool isFirstSliceOfPic ) |
---|
| 959 | { |
---|
| 960 | |
---|
| 961 | TDecTop* dec = xGetDecoder( nalu ); |
---|
| 962 | |
---|
| 963 | m_handleCraAsBlaFlagSetByExtMeans = false; |
---|
| 964 | Bool skipNalu = false; |
---|
| 965 | |
---|
| 966 | if ( isFirstSliceOfPic ) |
---|
| 967 | { |
---|
| 968 | m_totalNumofPicsReceived++; |
---|
| 969 | } |
---|
| 970 | |
---|
| 971 | if (!m_cvsStartFound ) |
---|
| 972 | { |
---|
| 973 | // Skip as specified by decoder option. (Not normative!) |
---|
| 974 | if ( m_totalNumofPicsReceived <= m_iSkipFrame ) |
---|
| 975 | { |
---|
| 976 | skipNalu = true; |
---|
| 977 | if ( isFirstSliceOfPic ) |
---|
| 978 | { |
---|
| 979 | std::cout << "Layer " << std::setfill(' ') << std::setw(2) << nalu.m_nuhLayerId |
---|
| 980 | << " POC ? Skipping picture." << std::setw(5) << m_totalNumofPicsReceived - 1 << std::endl; |
---|
| 981 | } |
---|
| 982 | } |
---|
| 983 | else |
---|
| 984 | { |
---|
| 985 | if ( dec->getIsInOwnTargetDecLayerIdList() ) |
---|
| 986 | { |
---|
| 987 | // Search for initial IRAP access unit |
---|
| 988 | Bool canBeSliceOfInitialIrapAu = nalu.isIrap() && ( dec->decProcClause8() || nalu.m_nuhLayerId == dec->getSmallestLayerId() ); |
---|
| 989 | |
---|
| 990 | if ( !canBeSliceOfInitialIrapAu ) |
---|
| 991 | { |
---|
| 992 | skipNalu = true; |
---|
| 993 | if ( isFirstSliceOfPic ) |
---|
| 994 | { |
---|
| 995 | std::cout << "Layer " << std::setfill(' ') << std::setw(2) << nalu.m_nuhLayerId |
---|
| 996 | << " POC ? Not an initial IRAP AU. Skipping picture." << std::setw(5) << m_totalNumofPicsReceived - 1 << std::endl; |
---|
| 997 | } |
---|
| 998 | } |
---|
| 999 | else |
---|
| 1000 | { |
---|
| 1001 | m_cvsStartFound = true; |
---|
| 1002 | if( nalu.isCra() ) |
---|
| 1003 | { |
---|
| 1004 | // Ensure that NoRaslOutputFlag of picture is equal to 1. |
---|
| 1005 | m_handleCraAsBlaFlagSetByExtMeans = true; |
---|
| 1006 | m_handleCraAsBlaFlag = true; |
---|
| 1007 | } |
---|
| 1008 | } |
---|
| 1009 | } |
---|
| 1010 | else |
---|
| 1011 | { |
---|
| 1012 | skipNalu = true; |
---|
| 1013 | } |
---|
| 1014 | } |
---|
| 1015 | } |
---|
| 1016 | else |
---|
| 1017 | { |
---|
| 1018 | assert( dec->getIsInOwnTargetDecLayerIdList() ); |
---|
| 1019 | } |
---|
| 1020 | return skipNalu; |
---|
| 1021 | } |
---|
| 1022 | |
---|
| 1023 | Void TAppDecTop::xProcessNonVclNalu( InputNALUnit nalu ) |
---|
| 1024 | { |
---|
| 1025 | xGetDecoder(nalu)->decodeNonVclNalu( nalu ); |
---|
| 1026 | |
---|
| 1027 | if ( nalu.m_nalUnitType == NAL_UNIT_EOS ) |
---|
| 1028 | { |
---|
| 1029 | m_eosInLayer[ nalu.m_nuhLayerId ] = true; |
---|
| 1030 | } |
---|
| 1031 | } |
---|
| 1032 | Void TAppDecTop::xTerminateDecoding() |
---|
| 1033 | { |
---|
| 1034 | xFinalizePic( true ); |
---|
| 1035 | xFinalizeAU ( ); |
---|
| 1036 | |
---|
| 1037 | #if NH_3D |
---|
| 1038 | if( m_cCamParsCollector.isInitialized() ) |
---|
| 1039 | { |
---|
| 1040 | m_cCamParsCollector.setSlice( 0 ); |
---|
| 1041 | } |
---|
| 1042 | #endif |
---|
| 1043 | xFlushOutput(); |
---|
| 1044 | m_dpb.emptyAllSubDpbs(); |
---|
| 1045 | } |
---|
| 1046 | |
---|
| 1047 | |
---|
| 1048 | ////////////////////////////// |
---|
| 1049 | /// Process slices |
---|
| 1050 | ////////////////////////////// |
---|
| 1051 | |
---|
| 1052 | Void TAppDecTop::xDecodeFirstSliceOfPicture( InputNALUnit nalu, Bool sliceIsFirstOfNewAu ) |
---|
| 1053 | { |
---|
| 1054 | TDecTop* dec = xGetDecoder(nalu); |
---|
| 1055 | // Initialize from VPS of first slice |
---|
| 1056 | |
---|
| 1057 | // Get current SPS and PPS |
---|
| 1058 | TComSlice* slicePilot = dec->getSlicePilot(); |
---|
| 1059 | m_vps = slicePilot->getVPS(); |
---|
| 1060 | m_sps = slicePilot->getSPS(); |
---|
| 1061 | m_pps = slicePilot->getPPS(); |
---|
| 1062 | |
---|
| 1063 | /// Use VPS activated by the first slice to initialized decoding |
---|
| 1064 | if( !m_initilizedFromVPS ) |
---|
| 1065 | { |
---|
| 1066 | xF811GeneralDecProc( nalu ); |
---|
| 1067 | m_initilizedFromVPS = true; |
---|
| 1068 | m_newVpsActivatedbyCurAu = true; //TBD |
---|
| 1069 | m_newVpsActivatedbyCurPic = true; |
---|
| 1070 | #if NH_3D |
---|
| 1071 | m_dpb.setVPS( m_vps ); |
---|
| 1072 | #endif |
---|
| 1073 | } |
---|
| 1074 | |
---|
| 1075 | // Create new sub-DBP if not existing |
---|
| 1076 | m_dpb.getSubDpb( nalu.m_nuhLayerId, true ); |
---|
| 1077 | |
---|
| 1078 | // Create a new picture initialize and make it the current picture |
---|
| 1079 | assert( m_curPic == NULL ); |
---|
| 1080 | m_curPic = new TComPic; |
---|
| 1081 | |
---|
| 1082 | m_curPic->create(*m_sps, *m_pps, true); |
---|
| 1083 | |
---|
| 1084 | m_curPic->setLayerId ( nalu.m_nuhLayerId ); |
---|
| 1085 | m_curPic->setDecodingOrder ( m_decodingOrder[ nalu.m_nuhLayerId ]); |
---|
| 1086 | m_curPic->setIsFstPicOfAllLayOfPocResetPer( m_newPicIsFstPicOfAllLayOfPocResetPer ); |
---|
| 1087 | m_curPic->setIsPocResettingPic ( m_newPicIsPocResettingPic ); |
---|
| 1088 | m_curPic->setActivatesNewVps ( m_newVpsActivatedbyCurPic ); |
---|
| 1089 | |
---|
| 1090 | dec ->activatePSsAndInitPicOrSlice( m_curPic ); |
---|
| 1091 | |
---|
| 1092 | m_decodingOrder[ nalu.m_nuhLayerId ]++; |
---|
| 1093 | |
---|
| 1094 | // Insert pic to current AU |
---|
| 1095 | // ( There is also a "current AU in the DBP", however the DBP AU will include the current |
---|
| 1096 | // picture only after it is inserted to the DBP ) |
---|
| 1097 | m_curAu.addPic( m_curPic, true ); |
---|
| 1098 | |
---|
| 1099 | // Invoke Claus 8 and Annex F decoding process for a picture (only parts before POC derivation ). |
---|
| 1100 | xPicDecoding( START_PIC, sliceIsFirstOfNewAu ); |
---|
| 1101 | |
---|
| 1102 | if (m_decProcCvsg == ANNEX_F ) |
---|
| 1103 | { |
---|
| 1104 | // Do output before POC derivation |
---|
| 1105 | xF13522OutputAndRemOfPicsFromDpb( true ); |
---|
| 1106 | } |
---|
| 1107 | |
---|
| 1108 | // Decode POC and apply reference picture set |
---|
| 1109 | dec->setDecProcPocAndRps( m_decProcPocAndRps ); |
---|
| 1110 | dec->decodePocAndRps( ); |
---|
| 1111 | |
---|
| 1112 | // Do output after POC and RPS derivation |
---|
| 1113 | if (m_decProcCvsg == CLAUSE_8 ) |
---|
| 1114 | { |
---|
| 1115 | xC522OutputAndRemOfPicsFromDpb( ); |
---|
| 1116 | } |
---|
| 1117 | else if (m_decProcCvsg == ANNEX_F ) |
---|
| 1118 | { |
---|
| 1119 | xF13522OutputAndRemOfPicsFromDpb( false ); |
---|
| 1120 | } |
---|
| 1121 | else |
---|
| 1122 | { |
---|
| 1123 | assert(false); |
---|
| 1124 | } |
---|
| 1125 | |
---|
| 1126 | // Generate unavailable reference pictures |
---|
| 1127 | dec->genUnavailableRefPics( ); |
---|
| 1128 | |
---|
| 1129 | // decode first slice segment |
---|
| 1130 | dec->decodeSliceSegment( nalu ); |
---|
| 1131 | |
---|
| 1132 | m_firstSliceInBitstream = false; |
---|
| 1133 | } |
---|
| 1134 | |
---|
| 1135 | Void TAppDecTop::xDecodeFollowSliceOfPicture( InputNALUnit nalu ) |
---|
| 1136 | { |
---|
| 1137 | // decode following segment |
---|
| 1138 | TDecTop* dec = xGetDecoder( nalu ); |
---|
| 1139 | dec->activatePSsAndInitPicOrSlice( NULL ); |
---|
| 1140 | dec->decodeSliceSegment ( nalu ); |
---|
| 1141 | } |
---|
| 1142 | |
---|
| 1143 | Void TAppDecTop::xFinalizePreviousPictures( Bool sliceIsFirstOfNewAU ) |
---|
| 1144 | { |
---|
| 1145 | Bool curPicIsLastInAu = sliceIsFirstOfNewAU && (m_curPic != NULL); |
---|
| 1146 | // When slice belongs to new picture, finalize current picture. |
---|
| 1147 | if( m_curPic != NULL ) |
---|
| 1148 | { |
---|
| 1149 | xFinalizePic( curPicIsLastInAu ); |
---|
| 1150 | |
---|
| 1151 | if (m_curPic->isIrap() ) |
---|
| 1152 | { |
---|
| 1153 | m_noRaslOutputFlagAssocIrap[ m_curPic->getLayerId() ] = m_curPic->getNoRaslOutputFlag(); |
---|
| 1154 | } |
---|
| 1155 | |
---|
| 1156 | m_tDecTop[ xGetDecoderIdx( m_curPic->getLayerId() )]->finalizePic(); |
---|
| 1157 | m_curPic->getPicYuvRec()->extendPicBorder(); |
---|
| 1158 | m_newVpsActivatedbyCurPic = false; |
---|
| 1159 | } |
---|
| 1160 | |
---|
| 1161 | // When slice belongs to new AU, finalize current AU. |
---|
| 1162 | if ( curPicIsLastInAu && !m_curAu.empty() ) |
---|
| 1163 | { |
---|
| 1164 | xFinalizeAU( ); |
---|
| 1165 | m_newVpsActivatedbyCurAu = false; |
---|
| 1166 | m_curAu.clear(); |
---|
| 1167 | } |
---|
| 1168 | m_curPic = NULL; |
---|
| 1169 | } |
---|
| 1170 | |
---|
| 1171 | |
---|
| 1172 | Void TAppDecTop::xFinalizePic(Bool curPicIsLastInAu ) |
---|
| 1173 | { |
---|
| 1174 | if ( m_curPic != NULL ) |
---|
| 1175 | { |
---|
| 1176 | m_tDecTop[ xGetDecoderIdx(m_curPic->getLayerId() ) ]->executeLoopFilters( ); // 8.7 |
---|
| 1177 | |
---|
| 1178 | // Invoke Claus 8 and F.8 decoding process for a picture (only parts after POC derivation ) |
---|
| 1179 | xPicDecoding(FINALIZE_PIC, curPicIsLastInAu ); |
---|
| 1180 | |
---|
| 1181 | if( m_decProcCvsg == CLAUSE_8 ) |
---|
| 1182 | { |
---|
| 1183 | xC523PicDecMarkAddBumpAndStor ( ); |
---|
| 1184 | } |
---|
| 1185 | else if ( m_decProcCvsg == ANNEX_F ) |
---|
| 1186 | { |
---|
| 1187 | xF13523PicDecMarkAddBumpAndStor ( curPicIsLastInAu ); |
---|
| 1188 | } |
---|
| 1189 | } |
---|
| 1190 | } |
---|
| 1191 | |
---|
| 1192 | Void TAppDecTop::xFinalizeAU() |
---|
| 1193 | { |
---|
| 1194 | #if NH_3D |
---|
| 1195 | if ( !m_curAu.empty()) |
---|
| 1196 | { |
---|
| 1197 | for (TComList<TComPic*>::iterator it = m_curAu.begin(); it != m_curAu.end(); it++) |
---|
| 1198 | { |
---|
| 1199 | TComPic* pic = (*it); |
---|
| 1200 | if ( !pic->getHasGeneratedRefPics() ) |
---|
| 1201 | { |
---|
| 1202 | pic->compressMotion(1); |
---|
| 1203 | } |
---|
| 1204 | } |
---|
| 1205 | } |
---|
| 1206 | #endif |
---|
| 1207 | } |
---|
| 1208 | |
---|
| 1209 | |
---|
| 1210 | Void TAppDecTop::xF811GeneralDecProc( InputNALUnit nalu ) |
---|
| 1211 | { |
---|
| 1212 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1213 | // F.8.1 General decoding process |
---|
| 1214 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1215 | |
---|
| 1216 | // The following applies at the beginning of decoding a CVSG, after activating the VPS RBSP that is active for |
---|
| 1217 | // the entire CVSG and before decoding any VCL NAL units of the CVSG: |
---|
| 1218 | |
---|
| 1219 | if ( !m_vps->getVpsExtensionFlag() ) |
---|
| 1220 | { |
---|
| 1221 | //- If vps_extension( ) is not present in the active VPS or a decoding process specified in this annex is not in use, |
---|
| 1222 | // clause 8.1.2 is invoked with the CVSG as input. |
---|
| 1223 | x812CvsgDecodingProcess( xGetDecoderIdx( nalu.m_nuhLayerId ) ); |
---|
| 1224 | m_decProcCvsg = CLAUSE_8; |
---|
| 1225 | } |
---|
| 1226 | else |
---|
| 1227 | { |
---|
| 1228 | // - Otherwise (vps_extension( ) is present in the active VPS and a decoding process specified in this annex is in use), |
---|
| 1229 | xF812CvsgDecodingProcess( xGetDecoderIdx( nalu.m_nuhLayerId ) ); |
---|
| 1230 | xF13521InitDpb(); |
---|
| 1231 | m_decProcCvsg = ANNEX_F; |
---|
| 1232 | } |
---|
| 1233 | |
---|
| 1234 | if ( m_printVpsInfo && ( m_decProcCvsg == ANNEX_F ) ) |
---|
| 1235 | { |
---|
| 1236 | m_vps->printScalabilityId(); |
---|
| 1237 | m_vps->printLayerDependencies(); |
---|
| 1238 | m_vps->printLayerSets(); |
---|
| 1239 | m_vps->printPTL(); |
---|
| 1240 | } |
---|
| 1241 | } |
---|
| 1242 | |
---|
| 1243 | Void TAppDecTop::xPicDecoding( DecProcPart curPart, Bool picPosInAuIndication ) |
---|
| 1244 | { |
---|
| 1245 | if ( m_decProcCvsg == CLAUSE_8 ) |
---|
| 1246 | { |
---|
| 1247 | // F.8.1.1 -> 8.1.2 -> 8.1.3 |
---|
| 1248 | x813decProcForCodPicWithLIdZero ( curPart ); |
---|
| 1249 | } |
---|
| 1250 | else if ( m_decProcCvsg == ANNEX_F ) |
---|
| 1251 | { |
---|
| 1252 | if ( m_targetOptLayerSetIdx == 0 ) |
---|
| 1253 | { |
---|
| 1254 | // F.8.1.1 -> F.8.1.2 -> 8.1.3 |
---|
| 1255 | x813decProcForCodPicWithLIdZero ( curPart ); |
---|
| 1256 | } |
---|
| 1257 | else |
---|
| 1258 | { |
---|
| 1259 | // F.8.1.1 -> F.8.1.2 -> F.8.1.3 |
---|
| 1260 | xF813ComDecProcForACodedPic( curPart, picPosInAuIndication ); |
---|
| 1261 | } |
---|
| 1262 | } |
---|
| 1263 | else |
---|
| 1264 | { |
---|
| 1265 | assert( false ); |
---|
| 1266 | } |
---|
| 1267 | } |
---|
| 1268 | |
---|
| 1269 | Void TAppDecTop::x812CvsgDecodingProcess( Int decIdx ) |
---|
| 1270 | { |
---|
| 1271 | /////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1272 | // 8.1.2 CVSG decoding process |
---|
| 1273 | /////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1274 | |
---|
| 1275 | // The layer identifier list TargetDecLayerIdList, which specifies the list of nuh_layer_id values, |
---|
| 1276 | // in increasing order of nuh_layer_id values, of the NAL units to be decoded, is specified as follows: |
---|
| 1277 | |
---|
| 1278 | Bool externalMeansToSetTargetDecLayerIdList = !m_targetDecLayerIdSetFileEmpty; |
---|
| 1279 | |
---|
| 1280 | if ( externalMeansToSetTargetDecLayerIdList ) |
---|
| 1281 | { |
---|
| 1282 | // - If some external means, not specified in this Specification, is available to set TargetDecLayerIdList, |
---|
| 1283 | // TargetDecLayerIdList is set by the external means. |
---|
| 1284 | assert( !m_targetDecLayerIdSet.empty() ); // Already done when parsing cfg ile |
---|
| 1285 | } |
---|
| 1286 | else |
---|
| 1287 | { |
---|
| 1288 | //- Otherwise, TargetDecLayerIdList contains only one nuh_layer_id value that is equal to 0. |
---|
| 1289 | m_targetDecLayerIdSet.clear(); |
---|
| 1290 | m_targetDecLayerIdSet.push_back( 0 ); |
---|
| 1291 | } |
---|
| 1292 | |
---|
| 1293 | // The variable HighestTid, which identifies the highest temporal sub-layer to be decoded, is specified as follows: |
---|
| 1294 | Bool externalMeansSetHighestTid = ( m_iMaxTemporalLayer != -1 ); |
---|
| 1295 | if ( externalMeansSetHighestTid ) |
---|
| 1296 | { |
---|
| 1297 | //- If some external means, not specified in this Specification, is available to set HighestTid, |
---|
| 1298 | // HighestTid is set by the external means. |
---|
| 1299 | m_highestTid = m_iMaxTemporalLayer; |
---|
| 1300 | } |
---|
| 1301 | else |
---|
| 1302 | { |
---|
| 1303 | //- Otherwise, HighestTid is set equal to sps_max_sub_layers_minus1. |
---|
| 1304 | m_highestTid = m_sps->getSpsMaxSubLayersMinus1(); |
---|
| 1305 | } |
---|
| 1306 | |
---|
| 1307 | //The variable SubPicHrdFlag is specified as follows: |
---|
| 1308 | //- If the decoding process is invoked in a bitstream conformance test as specified in clause C.1, SubPicHrdFlag is set as specified in clause C.1. |
---|
| 1309 | //- Otherwise, SubPicHrdFlag is set equal to ( SubPicHrdPreferredFlag && sub_pic_hrd_params_present_flag ). |
---|
| 1310 | |
---|
| 1311 | // The sub-bitstream extraction process as specified in clause 10 is applied with the CVSG, HighestTid and TargetDecLayerIdList as inputs, and the output is assigned to a bitstream referred to as BitstreamToDecode. |
---|
| 1312 | } |
---|
| 1313 | |
---|
| 1314 | Void TAppDecTop::x813decProcForCodPicWithLIdZero( DecProcPart curPart ) |
---|
| 1315 | { |
---|
| 1316 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1317 | // 8.1.3 Decoding process for a coded picture with nuh_layer_id equal to 0. |
---|
| 1318 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1319 | |
---|
| 1320 | if ( curPart == START_PIC ) |
---|
| 1321 | { |
---|
| 1322 | Int nuhLayerId = m_curPic->getLayerId(); |
---|
| 1323 | |
---|
| 1324 | if ( ( m_curPic->isBla() && m_curPic->getSlice(0)->getNalUnitType() == NAL_UNIT_CODED_SLICE_BLA_W_LP ) || m_curPic->isCra() ) |
---|
| 1325 | { |
---|
| 1326 | // Not needed. |
---|
| 1327 | // When the current picture is a BLA picture that has nal_unit_type equal to BLA_W_LP or is a CRA picture, the following applies: |
---|
| 1328 | // - If some external means not specified in this Specification is available to set the variable UseAltCpbParamsFlag to a value, UseAltCpbParamsFlag is set equal to the value provided by the external means. |
---|
| 1329 | // - Otherwise, the value of UseAltCpbParamsFlag is set equal to 0. |
---|
| 1330 | } |
---|
| 1331 | |
---|
| 1332 | if ( m_curPic->isIrap() ) |
---|
| 1333 | { |
---|
| 1334 | // When the current picture is an IRAP picture, the following applies: |
---|
| 1335 | if ( m_curPic->isIdr() || m_curPic->isBla() || m_curPic->getDecodingOrder() == 0 || m_eosInLayer[ nuhLayerId ] ) |
---|
| 1336 | { |
---|
| 1337 | // - If the current picture is an IDR picture, a BLA picture, the first picture in the bitstream in decoding order, |
---|
| 1338 | // or the first picture that follows an end of sequence NAL unit in decoding order, the variable NoRaslOutputFlag |
---|
| 1339 | // is set equal to 1. |
---|
| 1340 | |
---|
| 1341 | m_curPic->setNoRaslOutputFlag( true ); |
---|
| 1342 | } |
---|
| 1343 | else if ( m_handleCraAsBlaFlagSetByExtMeans ) |
---|
| 1344 | { |
---|
| 1345 | // - Otherwise, if some external means not specified in this Specification is available to set the variable HandleCraAsBlaFlag |
---|
| 1346 | // to a value for the current picture, the variable HandleCraAsBlaFlag is set equal to the value provided by |
---|
| 1347 | // the external means and the variable NoRaslOutputFlag is set equal to HandleCraAsBlaFlag. |
---|
| 1348 | |
---|
| 1349 | m_curPic->setNoRaslOutputFlag( m_handleCraAsBlaFlag ); |
---|
| 1350 | } |
---|
| 1351 | else |
---|
| 1352 | { |
---|
| 1353 | // - Otherwise, the variable HandleCraAsBlaFlag is set equal to 0 and the variable NoRaslOutputFlag is set equal to 0. |
---|
| 1354 | m_handleCraAsBlaFlag = false; |
---|
| 1355 | m_curPic->setNoRaslOutputFlag( false ); |
---|
| 1356 | } |
---|
| 1357 | } |
---|
| 1358 | |
---|
| 1359 | m_decProcPocAndRps = CLAUSE_8; |
---|
| 1360 | } |
---|
| 1361 | else if ( curPart == FINALIZE_PIC ) |
---|
| 1362 | { |
---|
| 1363 | // - PicOutputFlag is set as follows: |
---|
| 1364 | if (m_curPic->isRasl() && m_noRaslOutputFlagAssocIrap[ m_curPic->getLayerId() ] ) |
---|
| 1365 | { |
---|
| 1366 | // - If the current picture is a RASL picture and NoRaslOutputFlag of the associated IRAP picture is equal to 1, |
---|
| 1367 | // PicOutputFlag is set equal to 0. |
---|
| 1368 | m_curPic->setPicOutputFlag( false ); |
---|
| 1369 | } |
---|
| 1370 | else |
---|
| 1371 | { |
---|
| 1372 | // - Otherwise, PicOutputFlag is set equal to pic_output_flag. |
---|
| 1373 | m_curPic->setPicOutputFlag( m_curPic->getSlice(0)->getPicOutputFlag() ); |
---|
| 1374 | } |
---|
| 1375 | |
---|
| 1376 | // 4. After all slices of the current picture have been decoded, the decoded picture is marked as "used for short-term reference". |
---|
| 1377 | m_curPic->markAsUsedForShortTermReference(); |
---|
| 1378 | } |
---|
| 1379 | } |
---|
| 1380 | |
---|
| 1381 | // F.8.1.2 |
---|
| 1382 | Void TAppDecTop::xF812CvsgDecodingProcess( Int decIdx ) |
---|
| 1383 | { |
---|
| 1384 | /////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1385 | // F.8.1.2 CVSG decoding process |
---|
| 1386 | /////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1387 | |
---|
| 1388 | // The variable TargetOlsIdx, which specifies the index to the list of the OLSs |
---|
| 1389 | // specified by the VPS, of the target OLS, is specified as follows: |
---|
| 1390 | |
---|
| 1391 | |
---|
| 1392 | // If some external means, not specified in this Specification, is available to set |
---|
| 1393 | // TargetOlsIdx, TargetOlsIdx is set by the external means. |
---|
| 1394 | |
---|
| 1395 | // For this decoder the TargetOlsIdx is always set by external means: |
---|
| 1396 | // When m_targetOptLayerSetIdx is equal to -1, TargetOlsIdx is set to getVpsNumLayerSetsMinus1 (which has already been done in TDecTop, since needed there for parsing) |
---|
| 1397 | // Otherwise m_targetOptLayerSetIdx is used directly. |
---|
| 1398 | |
---|
| 1399 | if ( m_targetOptLayerSetIdx == -1 ) |
---|
| 1400 | { |
---|
| 1401 | m_targetOptLayerSetIdx = m_tDecTop[decIdx]->getTargetOlsIdx(); |
---|
| 1402 | } |
---|
| 1403 | else |
---|
| 1404 | { |
---|
| 1405 | assert( m_tDecTop[decIdx]->getTargetOlsIdx() == m_targetOptLayerSetIdx ); |
---|
| 1406 | } |
---|
| 1407 | |
---|
| 1408 | m_targetDecLayerSetIdx = m_vps->olsIdxToLsIdx( m_targetOptLayerSetIdx ); |
---|
| 1409 | m_targetDecLayerIdSet = m_vps->getTargetDecLayerIdList( m_targetOptLayerSetIdx ); |
---|
| 1410 | |
---|
| 1411 | |
---|
| 1412 | if ( m_targetOptLayerSetIdx < 0 || m_targetOptLayerSetIdx >= m_vps->getNumOutputLayerSets() ) |
---|
| 1413 | { |
---|
| 1414 | fprintf(stderr, "\ntarget output layer set index must be in the range of 0 to %d, inclusive \n", m_vps->getNumOutputLayerSets() - 1 ); |
---|
| 1415 | exit(EXIT_FAILURE); |
---|
| 1416 | } |
---|
| 1417 | |
---|
| 1418 | if ( !m_vps->getVpsBaseLayerAvailableFlag() ) |
---|
| 1419 | { |
---|
| 1420 | if( m_targetDecLayerSetIdx < m_vps->getFirstAddLayerSetIdx() || m_targetDecLayerSetIdx > m_vps->getLastAddLayerSetIdx() ) |
---|
| 1421 | { |
---|
| 1422 | // When vps_base_layer_available_flag is equal to 0, OlsIdxToLsIdx[ TargetOlsIdx ] shall be in the range of FirstAddLayerSetIdx to LastAddLayerSetIdx, inclusive. |
---|
| 1423 | fprintf(stderr, "\nvps_base_layer_available_flag is equal to 0, OlsIdxToLsIdx[ TargetOlsIdx ] shall be in the range of %d to %d, inclusive \n", m_vps->getFirstAddLayerSetIdx(), m_vps->getLastAddLayerSetIdx() ); |
---|
| 1424 | exit(EXIT_FAILURE); |
---|
| 1425 | } |
---|
| 1426 | } |
---|
| 1427 | |
---|
| 1428 | if ( !m_vps->getVpsBaseLayerInternalFlag() && m_targetOptLayerSetIdx <= 0 ) |
---|
| 1429 | { |
---|
| 1430 | // When vps_base_layer_internal_flag is equal to 0, TargetOlsIdx shall be greater than 0. |
---|
| 1431 | fprintf(stderr, "\nvps_base_layer_internal_flag is equal to 0, TargetOlsIdx shall be greater than 0.\n" ); |
---|
| 1432 | exit(EXIT_FAILURE); |
---|
| 1433 | } |
---|
| 1434 | |
---|
| 1435 | // The variable HighestTid, which identifies the highest temporal sub-layer to be decoded, |
---|
| 1436 | // is specified as follows: |
---|
| 1437 | |
---|
| 1438 | Bool externalMeansSetHighestTid = ( m_iMaxTemporalLayer != -1 ); |
---|
| 1439 | if ( externalMeansSetHighestTid ) |
---|
| 1440 | { |
---|
| 1441 | m_highestTid = m_iMaxTemporalLayer; |
---|
| 1442 | } |
---|
| 1443 | else |
---|
| 1444 | { |
---|
| 1445 | m_highestTid = m_sps->getSpsMaxSubLayersMinus1(); |
---|
| 1446 | } |
---|
| 1447 | |
---|
| 1448 | // The variable SubPicHrdPreferredFlag is either specified by external means, or when not specified by external means, set equal to 0. |
---|
| 1449 | // The variable SubPicHrdFlag is specified as follows: |
---|
| 1450 | // - If the decoding process is invoked in a bitstream conformance test as specified in clause F.13.1, SubPicHrdFlag is set as specified in clause F.13.1. |
---|
| 1451 | // - Otherwise, SubPicHrdFlag is set equal to ( SubPicHrdPreferredFlag && sub_pic_hrd_params_present_flag ), where sub_pic_hrd_params_present_flag is found in any hrd_parameters( ) syntax structure that applies to at least one bitstream partition of the output layer set idenified by TargetOlsIdx. |
---|
| 1452 | // - TBD in case that needed some when. |
---|
| 1453 | |
---|
| 1454 | // A bitstream to be decoded, BitstreamToDecode, is specified as follows: |
---|
| 1455 | // - Extraction is done in xExtractAndRewrite(); |
---|
| 1456 | |
---|
| 1457 | // - SmallestLayerId is already derived in TDecTop:: initFromActiveVps, since required for SH parsing. |
---|
| 1458 | m_smallestLayerId = m_tDecTop[decIdx]->getSmallestLayerId(); |
---|
| 1459 | |
---|
| 1460 | // When vps_base_layer_internal_flag is equal to 0, vps_base_layer_available_flag is equal to 1, |
---|
| 1461 | // and TargetDecLayerSetIdx is in the range of 0 to vps_num_layer_sets_minus1, inclusive, |
---|
| 1462 | // the following applies: |
---|
| 1463 | if ( !m_vps->getVpsBaseLayerInternalFlag() && m_vps->getVpsBaseLayerAvailableFlag() && |
---|
| 1464 | ( m_targetDecLayerSetIdx >= 0 && m_targetDecLayerSetIdx <= m_vps->getVpsNumLayerSetsMinus1() ) ) |
---|
| 1465 | { |
---|
| 1466 | |
---|
| 1467 | // TBD: The size of the sub-DPB for the layer with nuh_layer_id equal to 0 is set equal to 1. |
---|
| 1468 | |
---|
| 1469 | // TBD: The values of pic_width_in_luma_samples, pic_height_in_luma_samples, chroma_format_idc, |
---|
| 1470 | // separate_colour_plane_flag, bit_depth_luma_minus8, bit_depth_chroma_minus8, conf_win_left_offset, |
---|
| 1471 | // conf_win_right_offset, conf_win_top_offset, and conf_win_bottom_offset for decoded pictures |
---|
| 1472 | // with nuh_layer_id equal to 0 are set equal to the values of pic_width_vps_in_luma_samples, |
---|
| 1473 | // pic_height_vps_in_luma_samples, chroma_format_vps_idc, separate_colour_plane_vps_flag, |
---|
| 1474 | // bit_depth_vps_luma_minus8, bit_depth_vps_chroma_minus8, conf_win_vps_left_offset, |
---|
| 1475 | // conf_win_vps_right_offset, conf_win_vps_top_offset, and conf_win_vps_bottom_offset respectively, |
---|
| 1476 | // of the vps_rep_format_idx[ 0 ]-th rep_format( ) syntax structure in the active VPS. |
---|
| 1477 | |
---|
| 1478 | // The variable BaseLayerOutputFlag is set equal to ( TargetOptLayerIdList[ 0 ] = = 0 ). |
---|
| 1479 | |
---|
| 1480 | m_baseLayerOutputFlag = ( m_vps->getTargetOptLayerIdList( m_targetOptLayerSetIdx )[ 0 ] == 0 ); |
---|
| 1481 | |
---|
| 1482 | // NOTE - The BaseLayerOutputFlag for each access unit is to be sent by an external means to |
---|
| 1483 | // the base layer decoder for controlling the output of base layer decoded pictures. |
---|
| 1484 | // BaseLayerOutputFlag equal to 1 indicates that the base layer is an output layer. |
---|
| 1485 | // BaseLayerOutputFlag equal to 0 indicates that the base layer is not an output layer. |
---|
| 1486 | |
---|
| 1487 | // The variable LayerInitializedFlag[ i ] is set equal to 0 for all values of i from 0 |
---|
| 1488 | // to vps_max_layer_id, inclusive, and the variable FirstPicInLayerDecodedFlag[ i ] is set |
---|
| 1489 | // equal to 0 for all values of i from 0 to vps_max_layer_id, inclusive. |
---|
| 1490 | |
---|
| 1491 | for (Int i = 0; i <= m_vps->getVpsMaxLayerId(); i++ ) |
---|
| 1492 | { |
---|
| 1493 | m_layerInitilizedFlag [ i ] = false; |
---|
| 1494 | m_firstPicInLayerDecodedFlag[ i ] = false; |
---|
| 1495 | } |
---|
| 1496 | } |
---|
| 1497 | } |
---|
| 1498 | |
---|
| 1499 | Void TAppDecTop::xC522OutputAndRemOfPicsFromDpb( ) |
---|
| 1500 | { |
---|
| 1501 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1502 | // C.5.2.2 Output and removal of pictures from the DPB |
---|
| 1503 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1504 | |
---|
| 1505 | // The output and removal of pictures from the DPB before the decoding of the current picture |
---|
| 1506 | // (but after parsing the slice header of the first slice of the current picture) happens instantaneously |
---|
| 1507 | // when the first decoding unit of the access unit containing the current picture is removed from the CPB and proceeds as follows: |
---|
| 1508 | // - The decoding process for RPS as specified in clause 8.3.2 is invoked. |
---|
| 1509 | |
---|
| 1510 | Int nuhLayerId = m_curPic->getLayerId(); |
---|
| 1511 | const TComSPS* sps = m_curPic->getSlice(0)->getSPS(); |
---|
| 1512 | assert( nuhLayerId == 0 ); |
---|
| 1513 | |
---|
| 1514 | if( ( m_curPic->isIrap() && m_curPic->getNoRaslOutputFlag() == 1) && m_curPic->getDecodingOrder() != 0 ) |
---|
| 1515 | { |
---|
| 1516 | // - If the current picture is an IRAP picture with NoRaslOutputFlag equal to 1 that is not picture 0, |
---|
| 1517 | // the following ordered steps are applied: |
---|
| 1518 | |
---|
| 1519 | // 1. The variable NoOutputOfPriorPicsFlag is derived for the decoder under test as follows: |
---|
| 1520 | Int noOutputOfPriorPicsFlag; |
---|
| 1521 | if( m_curPic->isCra() ) |
---|
| 1522 | { |
---|
| 1523 | //- If the current picture is a CRA picture, NoOutputOfPriorPicsFlag is set equal to 1 |
---|
| 1524 | // (regardless of the value of no_output_of_prior_pics_flag). |
---|
| 1525 | noOutputOfPriorPicsFlag = true; |
---|
| 1526 | } |
---|
| 1527 | else if ( 0 ) |
---|
| 1528 | { |
---|
| 1529 | // TBD |
---|
| 1530 | //- Otherwise, if the value of pic_width_in_luma_samples, pic_height_in_luma_samples, chroma_format_idc, |
---|
| 1531 | // separate_colour_plane_flag, bit_depth_luma_minus8, bit_depth_chroma_minus8 or sps_max_dec_pic_buffering_minus1[ HighestTid ] |
---|
| 1532 | // derived from the active SPS is different from the value of pic_width_in_luma_samples, pic_height_in_luma_samples, |
---|
| 1533 | // chroma_format_idc, separate_colour_plane_flag, bit_depth_luma_minus8, bit_depth_chroma_minus8 or |
---|
| 1534 | // sps_max_dec_pic_buffering_minus1[ HighestTid ], respectively, derived from the SPS active for the preceding picture, |
---|
| 1535 | // NoOutputOfPriorPicsFlag may (but should not) be set to 1 by the decoder under test, |
---|
| 1536 | // regardless of the value of no_output_of_prior_pics_flag. |
---|
| 1537 | // NOTE - Although setting NoOutputOfPriorPicsFlag equal to no_output_of_prior_pics_flag is preferred under these conditions, |
---|
| 1538 | // the decoder under test is allowed to set NoOutputOfPriorPicsFlag to 1 in this case. |
---|
| 1539 | } |
---|
| 1540 | else |
---|
| 1541 | { |
---|
| 1542 | noOutputOfPriorPicsFlag = m_curPic->getSlice(0)->getNoOutputPriorPicsFlag(); |
---|
| 1543 | } |
---|
| 1544 | // 2. The value of NoOutputOfPriorPicsFlag derived for the decoder under test is applied for the HRD as follows: |
---|
| 1545 | if (noOutputOfPriorPicsFlag) |
---|
| 1546 | { |
---|
| 1547 | //- If NoOutputOfPriorPicsFlag is equal to 1, all picture storage buffers in the DPB are emptied |
---|
| 1548 | // without output of the pictures they contain and the DPB fullness is set equal to 0. |
---|
| 1549 | m_dpb.emptySubDpb( nuhLayerId ); |
---|
| 1550 | } |
---|
| 1551 | else if (!noOutputOfPriorPicsFlag) |
---|
| 1552 | { |
---|
| 1553 | // - Otherwise (NoOutputOfPriorPicsFlag is equal to 0), all picture storage buffers containing a picture that |
---|
| 1554 | // is marked as "not needed for output" and "unused for reference" are emptied (without output) and all non-empty |
---|
| 1555 | // picture storage buffers in the DPB are emptied by repeatedly invoking the "bumping" process specified in clause C.5.2.4 |
---|
| 1556 | // and the DPB fullness is set equal to 0. |
---|
| 1557 | |
---|
| 1558 | m_dpb.emptySubDpbNotNeedForOutputAndUnusedForRef( nuhLayerId ); |
---|
| 1559 | while( m_dpb.getSubDpb( nuhLayerId, false )->size() != 0 ) |
---|
| 1560 | { |
---|
| 1561 | xC524Bumping(); |
---|
| 1562 | } |
---|
| 1563 | } |
---|
| 1564 | } |
---|
| 1565 | else if ( !( m_curPic->isIrap() && m_curPic->getNoRaslOutputFlag() == 0 ) ) |
---|
| 1566 | { |
---|
| 1567 | // - Otherwise (the current picture is not an IRAP picture with NoRaslOutputFlag equal to 1), |
---|
| 1568 | // all picture storage buffers containing a picture which are marked as "not needed for output" and "unused for reference" |
---|
| 1569 | // are emptied (without output). For each picture storage buffer that is emptied, the DPB fullness is decremented by one. |
---|
| 1570 | |
---|
| 1571 | m_dpb.emptySubDpbNotNeedForOutputAndUnusedForRef( nuhLayerId ); |
---|
| 1572 | |
---|
| 1573 | Bool repeat = true; |
---|
| 1574 | |
---|
| 1575 | while( repeat ) |
---|
| 1576 | { |
---|
| 1577 | TComSubDpb* dpb = m_dpb.getSubDpb( nuhLayerId, false ); |
---|
| 1578 | TComList<TComPic*> picsMarkedForOutput = dpb->getPicsMarkedNeedForOutput(); |
---|
| 1579 | // When one or more of the following conditions are true, the "bumping" process specified in clause C.5.2.4 |
---|
| 1580 | // is invoked repeatedly while further decrementing the DPB fullness by one for each additional picture storage buffer that |
---|
| 1581 | // is emptied, until none of the following conditions are true: |
---|
| 1582 | |
---|
| 1583 | // - The number of pictures in the DPB that are marked as "needed for output" is greater |
---|
| 1584 | // than sps_max_num_reorder_pics[ HighestTid ]. |
---|
| 1585 | Bool cond1 = ( picsMarkedForOutput.size() > sps->getSpsMaxNumReorderPics( m_highestTid ) ); |
---|
| 1586 | |
---|
| 1587 | // - sps_max_latency_increase_plus1[ HighestTid ] is not equal to 0 and there is at least one picture in the DPB |
---|
| 1588 | // that is marked as "needed for output" for which the associated variable PicLatencyCount is greater than or equal |
---|
| 1589 | // to SpsMaxLatencyPictures[ HighestTid ]. |
---|
| 1590 | Bool anyPicWithGtOrEqLatencyCnt = false; |
---|
| 1591 | for (TComList<TComPic*>::iterator itP = picsMarkedForOutput.begin(); itP != picsMarkedForOutput.end() && !anyPicWithGtOrEqLatencyCnt; itP++ ) |
---|
| 1592 | { |
---|
| 1593 | anyPicWithGtOrEqLatencyCnt = anyPicWithGtOrEqLatencyCnt || ( (*itP)->getPicLatencyCount() >= sps->getSpsMaxLatencyPictures( m_highestTid )); |
---|
| 1594 | } |
---|
| 1595 | Bool cond2 = ( sps->getSpsMaxLatencyIncreasePlus1( m_highestTid ) != 0 ) && anyPicWithGtOrEqLatencyCnt; |
---|
| 1596 | |
---|
| 1597 | // - The number of pictures in the DPB is greater than or equal to sps_max_dec_pic_buffering_minus1[ HighestTid ] + 1. |
---|
| 1598 | Bool cond3 = ( dpb->size() >= ( sps->getSpsMaxDecPicBufferingMinus1( m_highestTid ) + 1 )); |
---|
| 1599 | |
---|
| 1600 | if ( cond1 || cond2 || cond3 ) |
---|
| 1601 | { |
---|
| 1602 | xC524Bumping(); |
---|
| 1603 | } |
---|
| 1604 | else |
---|
| 1605 | { |
---|
| 1606 | repeat = false; |
---|
| 1607 | } |
---|
| 1608 | } |
---|
| 1609 | } |
---|
| 1610 | } |
---|
| 1611 | |
---|
| 1612 | Void TAppDecTop::xC523PicDecMarkAddBumpAndStor() |
---|
| 1613 | { |
---|
| 1614 | /////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1615 | // C.5.2.3 Picture decoding, marking, additional bumping and storage |
---|
| 1616 | /////////////////////////////////////////////////////////////////////////////////////// |
---|
| 1617 | |
---|
| 1618 | Int nuhLayerId = m_curPic->getLayerId(); |
---|
| 1619 | const TComSPS* sps = m_curPic->getSlice(0)->getSPS(); |
---|
| 1620 | // The processes specified in this clause happen instantaneously when the last decoding unit of access unit n containing the |
---|
| 1621 | // current picture is removed from the CPB. |
---|
| 1622 | if (m_curPic->getPicOutputFlag() ) |
---|
| 1623 | { |
---|
| 1624 | // When the current picture has PicOutputFlag equal to 1, for each picture in the DPB that is marked as "needed for output" |
---|
| 1625 | // and follows the current picture in output order, the associated variable PicLatencyCount is set equal to PicLatencyCount + 1. |
---|
| 1626 | TComSubDpb* dpb = m_dpb.getSubDpb( nuhLayerId, false); |
---|
| 1627 | |
---|
| 1628 | for (TComSubDpb::iterator itP = dpb->begin(); itP != dpb->end(); itP++) |
---|
| 1629 | { |
---|
| 1630 | TComPic* pic = (*itP); |
---|
| 1631 | if ( pic->getOutputMark() && pic->getPOC() > m_curPic->getPOC() ) |
---|
| 1632 | { |
---|
| 1633 | pic->setPicLatencyCount( pic->getPicLatencyCount() + 1 ); |
---|
| 1634 | } |
---|
| 1635 | } |
---|
| 1636 | } |
---|
| 1637 | |
---|
| 1638 | // The current picture is considered as decoded after the last decoding unit of the picture is decoded. |
---|
| 1639 | // The current decoded picture is stored in an empty picture storage buffer in the DPB and the following applies: |
---|
| 1640 | m_dpb.addNewPic( m_curPic ); |
---|
| 1641 | |
---|
| 1642 | |
---|
| 1643 | if (m_curPic->getPicOutputFlag()) |
---|
| 1644 | { |
---|
| 1645 | // - If the current decoded picture has PicOutputFlag equal to 1, it is marked as "needed for output" and its associated |
---|
| 1646 | // variable PicLatencyCount is set equal to 0. |
---|
| 1647 | m_curPic->setOutputMark( true ); |
---|
| 1648 | m_curPic->setPicLatencyCount( 0 ); |
---|
| 1649 | } |
---|
| 1650 | else if (!m_curPic->getPicOutputFlag() ) |
---|
| 1651 | { |
---|
| 1652 | // - Otherwise (the current decoded picture has PicOutputFlag equal to 0), it is marked as "not needed for output". |
---|
| 1653 | m_curPic->setOutputMark( false ); |
---|
| 1654 | } |
---|
| 1655 | |
---|
| 1656 | // The current decoded picture is marked as "used for short-term reference". |
---|
| 1657 | m_curPic->markAsUsedForShortTermReference(); |
---|
| 1658 | |
---|
| 1659 | Bool repeat = true; |
---|
| 1660 | |
---|
| 1661 | while( repeat ) |
---|
| 1662 | { |
---|
| 1663 | TComSubDpb* dpb = m_dpb.getSubDpb( nuhLayerId, false ); |
---|
| 1664 | TComList<TComPic*> picsMarkedForOutput = dpb->getPicsMarkedNeedForOutput(); |
---|
| 1665 | |
---|
| 1666 | // When one or more of the following conditions are true, the "bumping" process specified in clause C.5.2.4 |
---|
| 1667 | // is invoked repeatedly until none of the following conditions are true: |
---|
| 1668 | |
---|
| 1669 | // - The number of pictures in the DPB that are marked as "needed for output" is greater than sps_max_num_reorder_pics[ HighestTid ]. |
---|
| 1670 | Bool cond1 = ( picsMarkedForOutput.size() > sps->getSpsMaxNumReorderPics( m_highestTid ) ); |
---|
| 1671 | |
---|
| 1672 | // - sps_max_latency_increase_plus1[ HighestTid ] is not equal to 0 and there is at least one picture in the DPB that is marked |
---|
| 1673 | // as "needed for output" for which the associated variable PicLatencyCount that is greater than or equal to |
---|
| 1674 | // SpsMaxLatencyPictures[ HighestTid ]. |
---|
| 1675 | Bool anyPicWithGtOrEqLatencyCnt = false; |
---|
| 1676 | for (TComList<TComPic*>::iterator itP = picsMarkedForOutput.begin(); itP != picsMarkedForOutput.end() && !anyPicWithGtOrEqLatencyCnt; itP++ ) |
---|
| 1677 | { |
---|
| 1678 | anyPicWithGtOrEqLatencyCnt = anyPicWithGtOrEqLatencyCnt || ( (*itP)->getPicLatencyCount() >= sps->getSpsMaxLatencyPictures( m_highestTid )); |
---|
| 1679 | } |
---|
| 1680 | Bool cond2 = ( sps->getSpsMaxLatencyIncreasePlus1( m_highestTid ) != 0 ) && anyPicWithGtOrEqLatencyCnt; |
---|
| 1681 | |
---|
| 1682 | if ( cond1 || cond2 ) |
---|
| 1683 | { |
---|
| 1684 | xC524Bumping(); |
---|
| 1685 | } |
---|
| 1686 | else |
---|
| 1687 | { |
---|
| 1688 | repeat = false; |
---|
| 1689 | } |
---|
| 1690 | } |
---|
| 1691 | } |
---|
| 1692 | |
---|
| 1693 | Void TAppDecTop::xC524Bumping( ) |
---|
| 1694 | { |
---|
| 1695 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1696 | // C.5.2.4 "Bumping" process |
---|
| 1697 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1698 | |
---|
| 1699 | // The "bumping" process consists of the following ordered steps: |
---|
| 1700 | |
---|
| 1701 | // 1. The picture that is first for output is selected as the one having the smallest value of PicOrderCntVal of all pictures |
---|
| 1702 | // in the DPB marked as "needed for output". |
---|
| 1703 | TComPic* pic = *(m_dpb.getSubDpb( 0, false)->getPicsMarkedNeedForOutput().begin()); // pics are sorted, so take first |
---|
| 1704 | |
---|
| 1705 | // 2. The picture is cropped, using the conformance cropping window specified in the active SPS for the picture, |
---|
| 1706 | // the cropped picture is output, and the picture is marked as "not needed for output". |
---|
| 1707 | xCropAndOutput( pic ); |
---|
| 1708 | pic->setOutputMark( false ); |
---|
| 1709 | |
---|
| 1710 | //3. When the picture storage buffer that included the picture that was cropped and output contains a picture marked |
---|
| 1711 | // as "unused for reference", the picture storage buffer is emptied. |
---|
| 1712 | if (pic->getMarkedUnUsedForReference() ) |
---|
| 1713 | { |
---|
| 1714 | m_dpb.removePic( pic ); |
---|
| 1715 | } |
---|
| 1716 | |
---|
| 1717 | // NOTE - For any two pictures picA and picB that belong to the same CVS and are output by the "bumping process", when picA |
---|
| 1718 | // is output earlier than picB, the value of PicOrderCntVal of picA is less than the value of PicOrderCntVal of picB. |
---|
| 1719 | } |
---|
| 1720 | |
---|
| 1721 | |
---|
| 1722 | Void TAppDecTop::xF813ComDecProcForACodedPic( DecProcPart curPart, Bool picPosInAuIndication ) |
---|
| 1723 | { |
---|
| 1724 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1725 | // F.8.1.3 Common decoding process for a coded picture |
---|
| 1726 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 1727 | |
---|
| 1728 | // PicPosInAuIndication is interpreted based on curPart. |
---|
| 1729 | // - If curPart is equal to START_PIC , it indicates whether the current pic is the first in the current AU. |
---|
| 1730 | // - Otherwise (if curPart is equal to FINALIZE_PIC), it indicates whether the current pic is the last in the current AU. |
---|
| 1731 | |
---|
| 1732 | if (curPart == START_PIC ) |
---|
| 1733 | { |
---|
| 1734 | Bool curPicIsFirstInAu = picPosInAuIndication; |
---|
| 1735 | |
---|
| 1736 | Int nuhLayerId = m_curPic->getLayerId(); |
---|
| 1737 | |
---|
| 1738 | if ( !m_vps->getVpsBaseLayerInternalFlag() && m_vps->getVpsBaseLayerAvailableFlag() && |
---|
| 1739 | ( m_targetDecLayerSetIdx >= 0 && m_targetDecLayerSetIdx <= m_vps->getVpsNumLayerSetsMinus1() ) && |
---|
| 1740 | m_curPic->getSlice(0)->getTemporalId() <= m_vps->getSubLayersVpsMaxMinus1( 0 ) && curPicIsFirstInAu ) |
---|
| 1741 | { |
---|
| 1742 | // When vps_base_layer_internal_flag is equal to 0, vps_base_layer_available_flag is equal to 1, |
---|
| 1743 | // TargetDecLayerSetIdx is in the range of 0 to vps_num_layer_sets_minus1, inclusive, |
---|
| 1744 | // TemporalId is less than or equal to sub_layers_vps_max_minus1[ 0 ], and the current picture |
---|
| 1745 | // is the first coded picture of an access unit, clause F.8.1.8 is invoked prior to decoding the current picture. |
---|
| 1746 | |
---|
| 1747 | assert( false ); //TBD |
---|
| 1748 | } |
---|
| 1749 | |
---|
| 1750 | // When the current picture is an IRAP picture, the variable HandleCraAsBlaFlag is derived as specified in the following: |
---|
| 1751 | if ( m_curPic->isIrap() ) |
---|
| 1752 | { |
---|
| 1753 | if ( m_handleCraAsBlaFlagSetByExtMeans ) |
---|
| 1754 | { |
---|
| 1755 | // If some external means not specified in this Specification is available to set the variable HandleCraAsBlaFlag to |
---|
| 1756 | // a value for the current picture, the variable HandleCraAsBlaFlag is set equal to the value provided by the external means. |
---|
| 1757 | } |
---|
| 1758 | else |
---|
| 1759 | { |
---|
| 1760 | // - Otherwise, the variable HandleCraAsBlaFlag is set equal to 0. |
---|
| 1761 | m_handleCraAsBlaFlag = false; |
---|
| 1762 | } |
---|
| 1763 | } |
---|
| 1764 | |
---|
| 1765 | if ( m_curPic->isIrap() && nuhLayerId == m_smallestLayerId ) |
---|
| 1766 | { |
---|
| 1767 | // When the current picture is an IRAP picture and has nuh_layer_id equal to SmallestLayerId, the following applies: |
---|
| 1768 | // The variable NoClrasOutputFlag is specified as follows: |
---|
| 1769 | |
---|
| 1770 | if( m_firstSliceInBitstream ) |
---|
| 1771 | { |
---|
| 1772 | // - If the current picture is the first picture in the bitstream, NoClrasOutputFlag is set equal to 1. |
---|
| 1773 | m_curPic->setNoClrasOutputFlag(true ); |
---|
| 1774 | } |
---|
| 1775 | else if( m_eosInLayer[ 0 ] || m_eosInLayer[ nuhLayerId ] ) |
---|
| 1776 | { |
---|
| 1777 | // - Otherwise, if the current picture is included in the first access unit that follows an access unit |
---|
| 1778 | // including an end of sequence NAL unit with nuh_layer_id equal to SmallestLayerId or 0 in decoding order, |
---|
| 1779 | // NoClrasOutputFlag is set equal to 1. |
---|
| 1780 | |
---|
| 1781 | m_curPic->setNoClrasOutputFlag(true ); |
---|
| 1782 | } |
---|
| 1783 | else if ( m_curPic->isBla() || (m_curPic->isCra() && m_handleCraAsBlaFlag )) |
---|
| 1784 | { |
---|
| 1785 | // - Otherwise, if the current picture is a BLA picture or a CRA picture with HandleCraAsBlaFlag equal to 1, |
---|
| 1786 | // NoClrasOutputFlag is set equal to 1. |
---|
| 1787 | m_curPic->setNoClrasOutputFlag(true ); |
---|
| 1788 | } |
---|
| 1789 | else if ( m_curPic->isIdr() && m_curPic->getSlice(0)->getCrossLayerBlaFlag() ) |
---|
| 1790 | { |
---|
| 1791 | // - Otherwise, if the current picture is an IDR picture with cross_layer_bla_flag is equal to 1, |
---|
| 1792 | // NoClrasOutputFlag is set equal to 1. |
---|
| 1793 | m_curPic->setNoClrasOutputFlag(true ); |
---|
| 1794 | } |
---|
| 1795 | else if ( m_noClrasOutputFlagSetByExtMeans ) |
---|
| 1796 | { |
---|
| 1797 | m_curPic->setNoClrasOutputFlag( m_noClrasOutputFlag ); |
---|
| 1798 | // - Otherwise, if some external means, not specified in this Specification, is available to set NoClrasOutputFlag, |
---|
| 1799 | // NoClrasOutputFlag is set by the external means. |
---|
| 1800 | } |
---|
| 1801 | else |
---|
| 1802 | { |
---|
| 1803 | // - Otherwise, NoClrasOutputFlag is set equal to 0. |
---|
| 1804 | m_curPic->setNoClrasOutputFlag(false ); |
---|
| 1805 | } |
---|
| 1806 | |
---|
| 1807 | //- When NoClrasOutputFlag is equal to 1, the variable LayerInitializedFlag[ i ] is set equal to 0 for all values |
---|
| 1808 | // of i from 0 to vps_max_layer_id, inclusive, and the variable FirstPicInLayerDecodedFlag[ i ] is set equal to 0 |
---|
| 1809 | // for all values of i from 0 to vps_max_layer_id, inclusive. |
---|
| 1810 | if ( m_curPic->getNoClrasOutputFlag( ) ) |
---|
| 1811 | { |
---|
| 1812 | for (Int i = 0; i <= m_vps->getVpsMaxLayerId(); i++) |
---|
| 1813 | { |
---|
| 1814 | m_layerInitilizedFlag [i] = false; |
---|
| 1815 | m_firstPicInLayerDecodedFlag[i] = false; |
---|
| 1816 | } |
---|
| 1817 | } |
---|
| 1818 | } |
---|
| 1819 | |
---|
| 1820 | // The variables LayerResetFlag and dolLayerId are derived as follows: |
---|
| 1821 | Int dolLayerId = -1; |
---|
| 1822 | if ( m_curPic->isIrap() && nuhLayerId > m_smallestLayerId ) |
---|
| 1823 | { |
---|
| 1824 | // - If the current picture is an IRAP picture and has nuh_layer_id nuhLayerId greater than SmallestLayerId, |
---|
| 1825 | // the following applies: |
---|
| 1826 | |
---|
| 1827 | if( m_eosInLayer[ nuhLayerId ] ) |
---|
| 1828 | { |
---|
| 1829 | // - If the current picture is the first picture, in decoding order, that follows an end of sequence NAL unit with |
---|
| 1830 | // nuh_layer_id equal to nuhLayerId, LayerResetFlag is set equal to 1 and dolLayerId is set equal to the nuh_layer_id |
---|
| 1831 | // value of the current NAL unit. |
---|
| 1832 | |
---|
| 1833 | m_layerResetFlag = true; |
---|
| 1834 | dolLayerId = nuhLayerId; |
---|
| 1835 | } |
---|
| 1836 | else if( ( m_curPic->isCra() && m_handleCraAsBlaFlag ) || |
---|
| 1837 | (m_curPic->isIdr() && m_curPic->getSlice(0)->getCrossLayerBlaFlag() ) || m_curPic->isBla() ) |
---|
| 1838 | { |
---|
| 1839 | // - Otherwise, if the current picture is a CRA picture with HandleCraAsBlaFlag equal to 1, an IDR picture with |
---|
| 1840 | // cross_layer_bla_flag is equal to 1 or a BLA picture, LayerResetFlag is set equal to 1 and dolLayerId is set |
---|
| 1841 | // equal to the nuh_layer_id value of the current NAL unit. |
---|
| 1842 | m_layerResetFlag = true; |
---|
| 1843 | dolLayerId = nuhLayerId; |
---|
| 1844 | } |
---|
| 1845 | else |
---|
| 1846 | { |
---|
| 1847 | // - Otherwise, LayerResetFlag is set equal to 0. |
---|
| 1848 | m_layerResetFlag = false; |
---|
| 1849 | } |
---|
| 1850 | |
---|
| 1851 | // NOTE 1 - An end of sequence NAL unit, a CRA picture with HandleCraAsBlaFlag equal to 1, an IDR picture with |
---|
| 1852 | // cross_layer_bla_flag equal to 1, or a BLA picture, each with nuh_layer_id nuhLayerId greater than SmallestLayerId, |
---|
| 1853 | // may be present to indicate a discontinuity of the layer with nuh_layer_id equal to nuhLayerId and its predicted layers. |
---|
| 1854 | |
---|
| 1855 | if (m_layerResetFlag ) |
---|
| 1856 | { |
---|
| 1857 | //When LayerResetFlag is equal to 1, the following applies: |
---|
| 1858 | // - The values of LayerInitializedFlag and FirstPicInLayerDecodedFlag are updated as follows: |
---|
| 1859 | |
---|
| 1860 | for( Int i = 0; i < m_vps->getNumPredictedLayers( dolLayerId ); i++ ) |
---|
| 1861 | { |
---|
| 1862 | Int iLayerId = m_vps->getIdPredictedLayer( dolLayerId , i ); |
---|
| 1863 | m_layerInitilizedFlag [ iLayerId ] = false; |
---|
| 1864 | m_firstPicInLayerDecodedFlag[ iLayerId ] = false; |
---|
| 1865 | } |
---|
| 1866 | |
---|
| 1867 | // - Each picture that is in the DPB and has nuh_layer_id equal to dolLayerId is marked as "unused for reference". |
---|
| 1868 | m_dpb.markSubDpbAsUnusedForReference( dolLayerId ); |
---|
| 1869 | |
---|
| 1870 | // - When NumPredictedLayers[ dolLayerId ] is greater than 0, each picture that is in the DPB and has nuh_layer_id |
---|
| 1871 | // equal to any value of IdPredictedLayer[ dolLayerId ][ i ] for the values of i in the range of 0 to |
---|
| 1872 | // NumPredictedLayers[ dolLayerId ] - 1, inclusive, is marked as "unused for reference". |
---|
| 1873 | |
---|
| 1874 | for( Int i = 0; i <= m_vps->getNumPredictedLayers( dolLayerId )- 1; i++ ) |
---|
| 1875 | { |
---|
| 1876 | m_dpb.markSubDpbAsUnusedForReference( m_vps->getIdPredictedLayer( dolLayerId, i ) ); |
---|
| 1877 | } |
---|
| 1878 | } |
---|
| 1879 | } |
---|
| 1880 | else |
---|
| 1881 | { |
---|
| 1882 | // - Otherwise, LayerResetFlag is set equal to 0. |
---|
| 1883 | m_layerResetFlag = false; |
---|
| 1884 | } |
---|
| 1885 | |
---|
| 1886 | if ( m_curPic->isIrap() ) |
---|
| 1887 | { |
---|
| 1888 | // When the current picture is an IRAP picture, the following applies: |
---|
| 1889 | |
---|
| 1890 | if ( m_curPic->isIdr() || m_curPic->isBla() || m_curPic->getDecodingOrder() == 0 || m_eosInLayer[nuhLayerId] ) |
---|
| 1891 | { |
---|
| 1892 | // - If the current picture with a particular value of nuh_layer_id is an IDR picture, a BLA picture, the first picture |
---|
| 1893 | // with that particular value of nuh_layer_id in the bitstream in decoding order or the first picture with that |
---|
| 1894 | // particular value of nuh_layer_id that follows an end of sequence NAL unit with that particular value of nuh_layer_id |
---|
| 1895 | // in decoding order, the variable NoRaslOutputFlag is set equal to 1. |
---|
| 1896 | |
---|
| 1897 | m_curPic->setNoRaslOutputFlag( true ); |
---|
| 1898 | } |
---|
| 1899 | else if ( m_layerInitilizedFlag[ nuhLayerId ] == 0 && xAllRefLayersInitilized( nuhLayerId ) ) |
---|
| 1900 | { |
---|
| 1901 | // Otherwise, if LayerInitializedFlag[ nuh_layer_id ] is equal to 0 and LayerInitializedFlag[ refLayerId ] is equal to 1 |
---|
| 1902 | // for all values of refLayerId equal to IdDirectRefLayer[ nuh_layer_id ][ j ], where j is in the range of 0 to |
---|
| 1903 | // NumDirectRefLayers[ nuh_layer_id ] - 1, inclusive, the variable NoRaslOutputFlag is set equal to 1. |
---|
| 1904 | |
---|
| 1905 | m_curPic->setNoRaslOutputFlag( true ); |
---|
| 1906 | } |
---|
| 1907 | else |
---|
| 1908 | { |
---|
| 1909 | // - Otherwise, the variable NoRaslOutputFlag is set equal to HandleCraAsBlaFlag. |
---|
| 1910 | m_curPic->setNoRaslOutputFlag( m_handleCraAsBlaFlag ); |
---|
| 1911 | } |
---|
| 1912 | } |
---|
| 1913 | |
---|
| 1914 | // The following applies for the decoding of the current picture: |
---|
| 1915 | if ( m_curPic->isIrap() && m_curPic->getNoRaslOutputFlag() && ( |
---|
| 1916 | ( nuhLayerId == 0 ) || |
---|
| 1917 | ( m_layerInitilizedFlag[ nuhLayerId ] == 0 && m_vps->getNumDirectRefLayers( nuhLayerId ) == 0 ) || |
---|
| 1918 | ( m_layerInitilizedFlag[ nuhLayerId ] == 0 && xAllRefLayersInitilized( nuhLayerId ) ) |
---|
| 1919 | ) ) |
---|
| 1920 | { |
---|
| 1921 | // When the current picture is an IRAP picture with NoRaslOutputFlag equal to 1 and one of the following conditions is true, |
---|
| 1922 | // LayerInitializedFlag[ nuh_layer_id ] is set equal to 1: |
---|
| 1923 | // - nuh_layer_id is equal to 0. |
---|
| 1924 | // - LayerInitializedFlag[ nuh_layer_id ] is equal to 0 and NumDirectRefLayers[ nuh_layer_id ] is equal to 0. |
---|
| 1925 | // - LayerInitializedFlag[ nuh_layer_id ] is equal to 0 and LayerInitializedFlag[ refLayerId ] is equal to 1 for all values of |
---|
| 1926 | // refLayerId equal to IdDirectRefLayer[ nuh_layer_id ][ j ], where j is in the range of 0 to NumDirectRefLayers[ nuh_layer_id ] - 1, inclusive. |
---|
| 1927 | |
---|
| 1928 | m_layerInitilizedFlag[ nuhLayerId ] = true; |
---|
| 1929 | } |
---|
| 1930 | |
---|
| 1931 | // The following applies for the decoding of the current picture: |
---|
| 1932 | |
---|
| 1933 | if ( nuhLayerId == 0 ) |
---|
| 1934 | { |
---|
| 1935 | // If the current picture has nuh_layer_id equal to 0, the decoding process for the current picture takes as inputs the syntax elements |
---|
| 1936 | // and upper-case variables from clause F.7 and the decoding process for a coded picture with nuh_layer_id equal to 0 as specified in clause F.8.1.4 |
---|
| 1937 | // is invoked. |
---|
| 1938 | |
---|
| 1939 | xF814decProcForCodPicWithLIdZero( curPart ); |
---|
| 1940 | } |
---|
| 1941 | else |
---|
| 1942 | { |
---|
| 1943 | Bool decodedPicWithLayerIdZeroProvided = false; |
---|
| 1944 | if ( !m_vps->getVpsBaseLayerInternalFlag() && m_vps->getVpsBaseLayerAvailableFlag() && |
---|
| 1945 | ( m_targetDecLayerSetIdx >= 0 && m_targetDecLayerSetIdx <= m_vps->getVpsNumLayerSetsMinus1() ) && |
---|
| 1946 | m_curPic->getSlice(0)->getTemporalId() <= m_vps->getSubLayersVpsMaxMinus1( 0 ) && curPicIsFirstInAu |
---|
| 1947 | && decodedPicWithLayerIdZeroProvided ) |
---|
| 1948 | { |
---|
| 1949 | assert( false ); //TBD |
---|
| 1950 | //TBD: Hybrid scalability |
---|
| 1951 | // When vps_base_layer_internal_flag is equal to 0, vps_base_layer_available_flag is equal to 1, |
---|
| 1952 | // TargetDecLayerSetIdx is in the range of 0 to vps_num_layer_sets_minus1, inclusive, |
---|
| 1953 | // TemporalId is less than or equal to sub_layers_vps_max_minus1[ 0 ], the current picture |
---|
| 1954 | // is the first coded picture of an access unit, and a decoded picture with nuh_layer_id equal |
---|
| 1955 | // to 0 is provided by external means for the current access unit, clause F.8.1.9 is invoked |
---|
| 1956 | // after the decoding of the slice segment header of the first slice segment, in decoding order, |
---|
| 1957 | // of the current picture, but prior to decoding any slice segment of the first |
---|
| 1958 | // coded picture of the access unit. |
---|
| 1959 | } |
---|
| 1960 | |
---|
| 1961 | m_decProcPocAndRps = ANNEX_F; |
---|
| 1962 | // For the decoding of the slice segment header of the first slice segment, in decoding order, of the current picture, |
---|
| 1963 | // the decoding process for starting the decoding of a coded picture with nuh_layer_id greater than 0 specified in |
---|
| 1964 | // clause F.8.1.5 is invoked. --> This is done in the loop when receiving slices. |
---|
| 1965 | |
---|
| 1966 | // The decoding process is already selected before. |
---|
| 1967 | } |
---|
| 1968 | } |
---|
| 1969 | else if( curPart == FINALIZE_PIC ) |
---|
| 1970 | { |
---|
| 1971 | Bool curPicIsLastInAu = picPosInAuIndication; |
---|
| 1972 | |
---|
| 1973 | if (m_curPic->getLayerId() == 0 ) |
---|
| 1974 | { |
---|
| 1975 | xF814decProcForCodPicWithLIdZero( curPart ); |
---|
| 1976 | } |
---|
| 1977 | else |
---|
| 1978 | { |
---|
| 1979 | // - After all slices of the current picture have been decoded, the decoding process for ending the decoding of a |
---|
| 1980 | // coded picture with nuh_layer_id greater than 0 specified in clause F.8.1.6 is invoked. |
---|
| 1981 | xF816decProcEndDecOfCodPicLIdGrtZero( ); |
---|
| 1982 | } |
---|
| 1983 | |
---|
| 1984 | TComSlice* slice = m_curPic->getSlice(0); |
---|
| 1985 | const TComVPS* vps = slice->getVPS(); |
---|
| 1986 | |
---|
| 1987 | if ( curPicIsLastInAu ) |
---|
| 1988 | { |
---|
| 1989 | //When the current picture is the last coded picture in an access unit in BitstreamToDecode, the following steps apply after |
---|
| 1990 | // the decoding of the current picture, prior to the decoding of the next picture: |
---|
| 1991 | |
---|
| 1992 | //- PicOutputFlag is updated as follows: |
---|
| 1993 | TComPic* picAtOutputLayer = NULL; |
---|
| 1994 | Int outputLayerId = -1; |
---|
| 1995 | |
---|
| 1996 | // Try to find pic at output layer. |
---|
| 1997 | if( vps->getAltOutputLayerFlag( m_targetOptLayerSetIdx ) ) |
---|
| 1998 | { |
---|
| 1999 | // When alt_output_layer_flag is equal to 1, the target output layer set can only contain one output layer. |
---|
| 2000 | assert( vps->getNumOutputLayersInOutputLayerSet( m_targetOptLayerSetIdx ) == 1 ); |
---|
| 2001 | outputLayerId = vps->getTargetOptLayerIdList(m_targetOptLayerSetIdx)[0]; |
---|
| 2002 | picAtOutputLayer = m_curAu.getPic( outputLayerId ); |
---|
| 2003 | } |
---|
| 2004 | |
---|
| 2005 | if ( vps->getAltOutputLayerFlag( m_targetOptLayerSetIdx ) && |
---|
| 2006 | ( picAtOutputLayer == NULL || (picAtOutputLayer != NULL && !picAtOutputLayer->getPicOutputFlag() ) ) ) |
---|
| 2007 | { |
---|
| 2008 | // If alt_output_layer_flag[ TargetOlsIdx ] is equal to 1 and the current access unit either does |
---|
| 2009 | // not contain a picture at the output layer or contains a picture at the output layer that has PicOutputFlag equal to 0: |
---|
| 2010 | |
---|
| 2011 | // - The list nonOutputLayerPictures is set to be the list of the pictures of the access unit with PicOutputFlag equal to 1 and |
---|
| 2012 | // with nuh_layer_id values among the nuh_layer_id values of the reference layers of the output layer. |
---|
| 2013 | TComList<TComPic*> nonOutputLayerPictures; |
---|
| 2014 | for( TComList<TComPic*>::iterator itP= m_curAu.begin(); itP != m_curAu.end() ; itP++ ) |
---|
| 2015 | { |
---|
| 2016 | TComPic* pic = (*itP); |
---|
| 2017 | Bool isRefernceLayerOfOutputLayer = false; |
---|
| 2018 | for ( Int i = 0; i < vps->getNumRefLayers( outputLayerId ) && !isRefernceLayerOfOutputLayer; i++ ) |
---|
| 2019 | { |
---|
| 2020 | if ( pic->getLayerId() == vps->getIdRefLayer(outputLayerId, i) ) |
---|
| 2021 | { |
---|
| 2022 | isRefernceLayerOfOutputLayer = true; |
---|
| 2023 | } |
---|
| 2024 | } |
---|
| 2025 | |
---|
| 2026 | if ( pic->getPicOutputFlag() && isRefernceLayerOfOutputLayer ) |
---|
| 2027 | { |
---|
| 2028 | nonOutputLayerPictures.pushBack( pic ); |
---|
| 2029 | } |
---|
| 2030 | } |
---|
| 2031 | |
---|
| 2032 | if (nonOutputLayerPictures.size() != 0 ) |
---|
| 2033 | { |
---|
| 2034 | // - When the list nonOutputLayerPictures is not empty, |
---|
| 2035 | // The picture with the highest nuh_layer_id value among the list nonOutputLayerPictures is removed from the list nonOutputLayerPictures. |
---|
| 2036 | // As in AU the picture with the highest layer id is the last |
---|
| 2037 | nonOutputLayerPictures.pop_back(); |
---|
| 2038 | } |
---|
| 2039 | |
---|
| 2040 | // - PicOutputFlag for each picture that is included in the list nonOutputLayerPictures is set equal to 0. |
---|
| 2041 | for( TComList<TComPic*>::iterator itP= nonOutputLayerPictures.begin(); itP != nonOutputLayerPictures.end() ; itP++ ) |
---|
| 2042 | { |
---|
| 2043 | (*itP)->setPicOutputFlag( false ); |
---|
| 2044 | } |
---|
| 2045 | } |
---|
| 2046 | else |
---|
| 2047 | { |
---|
| 2048 | //Otherwise, PicOutputFlag for pictures that are not included in an output layer is set equal to 0. |
---|
| 2049 | for( TComList<TComPic*>::iterator itP= m_curAu.begin(); itP != m_curAu.end() ; itP++ ) |
---|
| 2050 | { |
---|
| 2051 | TComPic* pic = (*itP); |
---|
| 2052 | |
---|
| 2053 | Bool includedInOutputLayer = false; |
---|
| 2054 | for (Int i = 0 ; i < vps->getNumOutputLayersInOutputLayerSet( m_targetOptLayerSetIdx ) && !includedInOutputLayer; i++) |
---|
| 2055 | { |
---|
| 2056 | includedInOutputLayer = ( pic->getLayerId() == vps->getTargetOptLayerIdList(m_targetOptLayerSetIdx)[i]); |
---|
| 2057 | } |
---|
| 2058 | |
---|
| 2059 | if ( !includedInOutputLayer ) |
---|
| 2060 | { |
---|
| 2061 | pic->setPicOutputFlag( false ); |
---|
| 2062 | } |
---|
| 2063 | } |
---|
| 2064 | } |
---|
| 2065 | |
---|
| 2066 | // When vps_base_layer_internal_flag is equal to 0, vps_base_layer_available_flag is equal to 1 and |
---|
| 2067 | // TargetDecLayerSetIdx is in the range of 0 to vps_num_layer_sets_minus1, inclusive |
---|
| 2068 | |
---|
| 2069 | if( !vps->getVpsBaseLayerInternalFlag() && vps->getVpsBaseLayerAvailableFlag() && ( m_targetDecLayerSetIdx >= 0 && m_targetDecLayerSetIdx <= vps->getVpsNumLayerSetsMinus1() ) ) |
---|
| 2070 | { |
---|
| 2071 | if( !m_baseLayerOutputFlag ) |
---|
| 2072 | { |
---|
| 2073 | // Check if base layer is a reference layer of the output layer |
---|
| 2074 | // and if the access unit does not contain a picture at any other reference layer of the output layer |
---|
| 2075 | Bool baseLayerIsRefOfOutputLayer = false; |
---|
| 2076 | Bool auDoesNotContainPicAtAnyOtherRefLayerOfOptLayer = true; |
---|
| 2077 | if ( vps->getAltOutputLayerFlag( m_targetOptLayerSetIdx )) |
---|
| 2078 | { |
---|
| 2079 | assert( outputLayerId >= 0 ); |
---|
| 2080 | |
---|
| 2081 | for (Int i = 0; i < vps->getNumRefLayers( outputLayerId ); i++ ) |
---|
| 2082 | { |
---|
| 2083 | Int refLayerId = vps->getIdRefLayer(outputLayerId, i); |
---|
| 2084 | if( refLayerId == 0 ) |
---|
| 2085 | { |
---|
| 2086 | baseLayerIsRefOfOutputLayer = true; |
---|
| 2087 | } |
---|
| 2088 | else |
---|
| 2089 | { |
---|
| 2090 | if ( m_curAu.getPic( refLayerId ) != NULL ) |
---|
| 2091 | { |
---|
| 2092 | auDoesNotContainPicAtAnyOtherRefLayerOfOptLayer = false; |
---|
| 2093 | } |
---|
| 2094 | } |
---|
| 2095 | } |
---|
| 2096 | } |
---|
| 2097 | |
---|
| 2098 | // If alt_output_layer_flag[ TargetOlsIdx ] is equal to 1, the base layer is a reference layer of the output layer, |
---|
| 2099 | // the access unit does not contain a picture at the output layer or contains a picture at the output layer that has |
---|
| 2100 | // PicOutputFlag equal to 0, and the access unit does not contain a picture at any other reference layer of the output layer, |
---|
| 2101 | // BaseLayerPicOutputFlag is set equal to 1 |
---|
| 2102 | |
---|
| 2103 | if ( vps->getAltOutputLayerFlag( m_targetOptLayerSetIdx ) && baseLayerIsRefOfOutputLayer |
---|
| 2104 | && ( ( picAtOutputLayer == NULL ) || ( picAtOutputLayer != NULL && !picAtOutputLayer->getPicOutputFlag() ) ) |
---|
| 2105 | && auDoesNotContainPicAtAnyOtherRefLayerOfOptLayer ) |
---|
| 2106 | { |
---|
| 2107 | m_baseLayerPicOutputFlag = true; |
---|
| 2108 | } |
---|
| 2109 | else |
---|
| 2110 | { |
---|
| 2111 | m_baseLayerPicOutputFlag = false; |
---|
| 2112 | } |
---|
| 2113 | } |
---|
| 2114 | else |
---|
| 2115 | { |
---|
| 2116 | m_baseLayerPicOutputFlag = true; |
---|
| 2117 | } |
---|
| 2118 | |
---|
| 2119 | // NOTE 3 - The BaseLayerPicOutputFlag for each access unit is to be sent by an external means |
---|
| 2120 | // to the base layer decoder for controlling the output of base layer decoded pictures. |
---|
| 2121 | // BaseLayerPicOutputFlag equal to 1 for an access unit specifies that the base layer picture of the access unit is to be output. |
---|
| 2122 | // BaseLayerPicOutputFlag equal to 0 for an access unit specifies that the base layer picture of the access unit is not to be output. |
---|
| 2123 | |
---|
| 2124 | // The sub-DPB for the layer with nuh_layer_id equal to 0 is set to be empty. |
---|
| 2125 | m_dpb.emptySubDpb( 0 ); |
---|
| 2126 | } |
---|
| 2127 | |
---|
| 2128 | // The variable AuOutputFlag that is associated with the current access unit is derived as follows: |
---|
| 2129 | |
---|
| 2130 | // Derive if at least one picture in the current access unit has PicOutputFlag equal to 1 |
---|
| 2131 | Bool atLeastOnePicInAuWithPicOptFlagOne = false; |
---|
| 2132 | for( TComList<TComPic*>::iterator itP= m_curAu.begin(); itP != m_curAu.end() ; itP++ ) |
---|
| 2133 | { |
---|
| 2134 | if ( (*itP)->getPicOutputFlag() ) |
---|
| 2135 | { |
---|
| 2136 | atLeastOnePicInAuWithPicOptFlagOne = true; |
---|
| 2137 | } |
---|
| 2138 | } |
---|
| 2139 | |
---|
| 2140 | //If at least one picture in the current access unit has PicOutputFlag equal to 1 |
---|
| 2141 | if ( atLeastOnePicInAuWithPicOptFlagOne ) |
---|
| 2142 | { |
---|
| 2143 | m_auOutputFlag = true; |
---|
| 2144 | } |
---|
| 2145 | else |
---|
| 2146 | { |
---|
| 2147 | m_auOutputFlag = false; |
---|
| 2148 | } |
---|
| 2149 | |
---|
| 2150 | // The variable PicLatencyCount that is associated with the current access unit is set equal to 0. |
---|
| 2151 | m_curAu.setPicLatencyCount( 0 ); |
---|
| 2152 | |
---|
| 2153 | if ( m_auOutputFlag ) |
---|
| 2154 | { |
---|
| 2155 | // for each access unit in the DPB |
---|
| 2156 | // that has at least one picture marked as "needed for output" and |
---|
| 2157 | // follows the current access unit in output order, the associated |
---|
| 2158 | // variable PicLatencyCount is set equal to PicLatencyCount + 1. |
---|
| 2159 | |
---|
| 2160 | TComList<TComAu*> aus = m_dpb.getAusHavingPicsMarkedForOutput(); // <-- current AU is actually not yet in DPB, but this does not matter here. |
---|
| 2161 | |
---|
| 2162 | for(TComList<TComAu*>::iterator itA= aus.begin(); ( itA!=aus.end()); itA++) |
---|
| 2163 | { |
---|
| 2164 | if( m_curAu.getPoc() < (*itA)->getPoc()) |
---|
| 2165 | { |
---|
| 2166 | (*itA)->setPicLatencyCount( (*itA)->getPicLatencyCount() + 1 ); |
---|
| 2167 | } |
---|
| 2168 | } |
---|
| 2169 | } |
---|
| 2170 | } |
---|
| 2171 | } |
---|
| 2172 | } |
---|
| 2173 | |
---|
| 2174 | Void TAppDecTop::xF814decProcForCodPicWithLIdZero( DecProcPart curPart ) |
---|
| 2175 | { |
---|
| 2176 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2177 | // F.8.1.4 Decoding process for a coded picture with nuh_layer_id equal to 0 |
---|
| 2178 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2179 | |
---|
| 2180 | x813decProcForCodPicWithLIdZero( curPart ); |
---|
| 2181 | |
---|
| 2182 | if (curPart == START_PIC ) |
---|
| 2183 | { |
---|
| 2184 | m_decProcPocAndRps = ANNEX_F; |
---|
| 2185 | } |
---|
| 2186 | else if (curPart == FINALIZE_PIC ) |
---|
| 2187 | { |
---|
| 2188 | if ( !m_firstPicInLayerDecodedFlag[0] ) |
---|
| 2189 | { |
---|
| 2190 | m_firstPicInLayerDecodedFlag[0] = true; |
---|
| 2191 | } |
---|
| 2192 | } |
---|
| 2193 | } |
---|
| 2194 | |
---|
| 2195 | Void TAppDecTop::xF13521InitDpb() |
---|
| 2196 | { |
---|
| 2197 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2198 | // F.13.5.2.1 General |
---|
| 2199 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2200 | |
---|
| 2201 | const TComDpbSize* dpbSize = m_vps->getDpbSize(); |
---|
| 2202 | m_maxNumReorderPics = dpbSize->getMaxVpsNumReorderPics ( m_targetOptLayerSetIdx, m_highestTid ); |
---|
| 2203 | m_maxLatencyIncreasePlus1 = dpbSize->getMaxVpsLatencyIncreasePlus1( m_targetOptLayerSetIdx, m_highestTid ); |
---|
| 2204 | m_maxLatencyValue = dpbSize->getVpsMaxLatencyPictures ( m_targetOptLayerSetIdx, m_highestTid ); |
---|
| 2205 | |
---|
| 2206 | for(Int i = 0; i < MAX_NUM_LAYER_IDS; i++) |
---|
| 2207 | { |
---|
| 2208 | m_maxDecPicBufferingMinus1[ i ] = MIN_INT; |
---|
| 2209 | } |
---|
| 2210 | for( Int i = 0; i <= m_vps->getMaxLayersMinus1(); i++ ) |
---|
| 2211 | { |
---|
| 2212 | Int currLayerId = m_vps->getLayerIdInNuh( i ); |
---|
| 2213 | for(Int layerIdx = 0 ; layerIdx < m_vps->getNumLayersInIdList( m_targetDecLayerSetIdx); layerIdx++ ) |
---|
| 2214 | { |
---|
| 2215 | if( m_vps->getLayerSetLayerIdList( m_targetDecLayerSetIdx, layerIdx ) == currLayerId ) |
---|
| 2216 | { |
---|
| 2217 | m_maxDecPicBufferingMinus1[currLayerId] = dpbSize->getMaxVpsDecPicBufferingMinus1( m_targetDecLayerSetIdx, layerIdx, m_highestTid ); |
---|
| 2218 | } |
---|
| 2219 | } |
---|
| 2220 | } |
---|
| 2221 | } |
---|
| 2222 | |
---|
| 2223 | Void TAppDecTop::xF13522OutputAndRemOfPicsFromDpb( Bool beforePocDerivation ) |
---|
| 2224 | { |
---|
| 2225 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2226 | // F.13.5.2.2 Output and removal of pictures from the DPB |
---|
| 2227 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2228 | |
---|
| 2229 | if( beforePocDerivation ) |
---|
| 2230 | { |
---|
| 2231 | // F.13.5.2.2 |
---|
| 2232 | // Part before POC and RPS derivation. |
---|
| 2233 | |
---|
| 2234 | if( m_curPic->getDecodingOrder() != 0 ) |
---|
| 2235 | { |
---|
| 2236 | // When the current picture is not picture 0 in the current layer, |
---|
| 2237 | // the output and removal of pictures in the current layer, with nuh_layer_id equal to currLayerId, |
---|
| 2238 | // from the DPB before the decoding of the current picture, i.e., picture n, but after parsing the |
---|
| 2239 | // slice header of the first slice of the current picture and before the invocation of the decoding |
---|
| 2240 | // process for picture order count, happens instantaneously when the first decoding unit of the current |
---|
| 2241 | // picture is removed from the CPB and proceeds as follows: |
---|
| 2242 | |
---|
| 2243 | if( m_curPic->getIsPocResettingPic() ) |
---|
| 2244 | { |
---|
| 2245 | // When the current picture is a POC resetting picture, all pictures in the DPB that do |
---|
| 2246 | // not belong to the current access unit and that are marked as "needed for output" are |
---|
| 2247 | // output, starting with pictures with the smallest value of PicOrderCntVal of all pictures |
---|
| 2248 | // excluding those in the current access unit in the DPB, in ascending order of the PicOrderCntVal |
---|
| 2249 | // values, and pictures with the same value of PicOrderCntVal are output in ascending order |
---|
| 2250 | // of the nuh_layer_id values. When a picture is output, it is cropped using the conformance cropping |
---|
| 2251 | // window specified in the active SPS for the picture, the cropped picture is output, and |
---|
| 2252 | // the picture is marked as "not needed for output" |
---|
| 2253 | |
---|
| 2254 | TComList<TComAu*>* aus = m_dpb.getAus(); // Theses are sorted by POC. |
---|
| 2255 | for (TComList<TComAu*>::iterator itA = aus->begin(); itA != aus->end(); itA++ ) |
---|
| 2256 | { |
---|
| 2257 | //Pictures in AUs are sorted by nuh_layer_id; |
---|
| 2258 | for (TComAu::iterator itP = (*itA)->begin(); itP != (*itA)->end(); itP++ ) |
---|
| 2259 | { |
---|
| 2260 | TComPic* pic = (*itP); |
---|
| 2261 | if ( !m_curAu.containsPic( pic ) ) |
---|
| 2262 | { |
---|
| 2263 | xCropAndOutput( pic ); |
---|
| 2264 | pic->setOutputMark( false ); |
---|
| 2265 | } |
---|
| 2266 | } |
---|
| 2267 | } |
---|
| 2268 | } |
---|
| 2269 | } |
---|
| 2270 | } |
---|
| 2271 | else if ( !beforePocDerivation ) |
---|
| 2272 | { |
---|
| 2273 | // The variable listOfSubDpbsToEmpty is derived as follows: |
---|
| 2274 | |
---|
| 2275 | Int nuhLayerId = m_curPic->getLayerId(); |
---|
| 2276 | TComList<TComSubDpb*> listOfSubDpbsToEmpty; |
---|
| 2277 | |
---|
| 2278 | if ( m_newVpsActivatedbyCurAu && ( m_curPic->isIrap()&& nuhLayerId == m_smallestLayerId |
---|
| 2279 | && m_curPic->getNoRaslOutputFlag() && m_curPic->getNoClrasOutputFlag() ) ) |
---|
| 2280 | { |
---|
| 2281 | // If a new VPS is activated by the current access unit or the current picture is IRAP picture |
---|
| 2282 | // with nuh_layer_id equal to SmallestLayerId, NoRaslOutputFlag equal to 1, and NoClrasOutputFlag equal to 1, |
---|
| 2283 | // listOfSubDpbsToEmpty is set equal to all the sub-DPBs. |
---|
| 2284 | listOfSubDpbsToEmpty = (*m_dpb.getSubDpbs()); |
---|
| 2285 | } |
---|
| 2286 | else if (m_curPic->isIrap() && m_vps->getNumDirectRefLayers( nuhLayerId ) == 0 && |
---|
| 2287 | nuhLayerId > m_smallestLayerId && m_curPic->getNoRaslOutputFlag() && m_layerResetFlag ) |
---|
| 2288 | { |
---|
| 2289 | // Otherwise, if the current picture is an IRAP picture with any nuh_layer_id value indepLayerId |
---|
| 2290 | // such that NumDirectRefLayers[ indepLayerId ] is equal to 0 and indepLayerId is greater than |
---|
| 2291 | // SmallestLayerId, and with NoRaslOutputFlag equal to 1, and LayerResetFlag is equal to 1, |
---|
| 2292 | |
---|
| 2293 | // listOfSubDpbsToEmpty is set equal to the sub-DPBs containing the current layer and the sub-DPBs |
---|
| 2294 | // containing the predicted layers of the current layer. |
---|
| 2295 | |
---|
| 2296 | listOfSubDpbsToEmpty.pushBack( m_dpb.getSubDpb( nuhLayerId, false ) ); |
---|
| 2297 | for( Int i = 0; i < m_vps->getNumPredictedLayers( nuhLayerId ); i++ ) |
---|
| 2298 | { |
---|
| 2299 | listOfSubDpbsToEmpty.pushBack( m_dpb.getSubDpb( m_vps->getIdPredictedLayer( nuhLayerId, i), false ) ); |
---|
| 2300 | } |
---|
| 2301 | } |
---|
| 2302 | else |
---|
| 2303 | { |
---|
| 2304 | // Otherwise, crossLayerBufferEmptyFlag is set equal to 0. |
---|
| 2305 | |
---|
| 2306 | // The SPEC seems to have an issue here. Use current subDpb as in form F.13.3.2 |
---|
| 2307 | listOfSubDpbsToEmpty.pushBack( m_dpb.getSubDpb( nuhLayerId, false ) ); |
---|
| 2308 | } |
---|
| 2309 | |
---|
| 2310 | // If the current picture is an IRAP picture with NoRaslOutputFlag equal to 1 and any of |
---|
| 2311 | // the following conditions is true: |
---|
| 2312 | // - nuh_layer_id equal to SmallestLayerId, |
---|
| 2313 | // - nuh_layer_id of the current layer is greater than SmallestLayerId, and NumDirectRefLayers[ nuh_layer_id ] |
---|
| 2314 | // is equal to 0, |
---|
| 2315 | |
---|
| 2316 | if ( m_curPic->isIrap() && m_curPic->getNoRaslOutputFlag() && ( |
---|
| 2317 | ( nuhLayerId == m_smallestLayerId ) || |
---|
| 2318 | ( ( nuhLayerId > m_smallestLayerId ) && m_vps->getNumDirectRefLayers( nuhLayerId ) == 0 ) ) |
---|
| 2319 | ) |
---|
| 2320 | { |
---|
| 2321 | // 1. The variable NoOutputOfPriorPicsFlag is derived for the decoder under test as follows: |
---|
| 2322 | Bool noOutputOfPriorPicsFlag; |
---|
| 2323 | if( m_curPic->isCra() ) |
---|
| 2324 | { |
---|
| 2325 | noOutputOfPriorPicsFlag = true; |
---|
| 2326 | // - If the current picture is a CRA picture, NoOutputOfPriorPicsFlag is set equal to 1 |
---|
| 2327 | // (regardless of the value of no_output_of_prior_pics_flag). |
---|
| 2328 | } |
---|
| 2329 | else if ( false ) |
---|
| 2330 | { |
---|
| 2331 | // TBD |
---|
| 2332 | // - Otherwise, if the value of pic_width_in_luma_samples, pic_height_in_luma_samples, |
---|
| 2333 | // chroma_format_idc, bit_depth_luma_minus8, bit_depth_chroma_minus8, separate_colour_plane_flag, |
---|
| 2334 | // or sps_max_dec_pic_buffering_minus1[ HighestTid ] derived from the active SPS for the current |
---|
| 2335 | // layer is different from the value of pic_width_in_luma_samples, pic_height_in_luma_samples, |
---|
| 2336 | // chroma_format_idc, bit_depth_luma_minus8, bit_depth_chroma_minus8, separate_colour_plane_flag, |
---|
| 2337 | // or sps_max_dec_pic_buffering_minus1[ HighestTid ], respectively, derived from the SPS that |
---|
| 2338 | // was active for the current layer when decoding the preceding picture in the current layer, |
---|
| 2339 | // NoOutputOfPriorPicsFlag may (but should not) be set equal to 1 by the decoder under test, |
---|
| 2340 | // regardless of the value of no_output_of_prior_pics_flag. |
---|
| 2341 | // NOTE - Although setting NoOutputOfPriorPicsFlag equal to no_output_of_prior_pics_flag is preferred |
---|
| 2342 | // under these conditions, the decoder under test is allowed to set NoOutputOfPriorPicsFlag to 1 in this case. |
---|
| 2343 | // - Otherwise, NoOutputOfPriorPicsFlag is set equal to no_output_of_prior_pics_flag. |
---|
| 2344 | |
---|
| 2345 | // assert( 1 ); |
---|
| 2346 | } |
---|
| 2347 | else |
---|
| 2348 | { |
---|
| 2349 | // - Otherwise, NoOutputOfPriorPicsFlag is set equal to no_output_of_prior_pics_flag. |
---|
| 2350 | noOutputOfPriorPicsFlag = m_curPic->getSlice(0)->getNoOutputPriorPicsFlag(); |
---|
| 2351 | } |
---|
| 2352 | |
---|
| 2353 | // 2. The value of NoOutputOfPriorPicsFlag derived for the decoder under test is applied for the HRD as follows: |
---|
| 2354 | if ( !noOutputOfPriorPicsFlag ) |
---|
| 2355 | { |
---|
| 2356 | // - If NoOutputOfPriorPicsFlag is equal to 0, all non-empty picture storage buffers in all the sub-DPBs included |
---|
| 2357 | // in listOfSubDpbsToEmpty are output by repeatedly invoking the "bumping" process specified in clause |
---|
| 2358 | // F.13.5.2.4 until all these pictures are marked as "not needed for output". |
---|
| 2359 | |
---|
| 2360 | Bool repeat = true; |
---|
| 2361 | while (repeat ) |
---|
| 2362 | { |
---|
| 2363 | Bool allPicsMarkedNotNeedForOutput = true; |
---|
| 2364 | for (TComList<TComSubDpb*>::iterator itS = listOfSubDpbsToEmpty.begin(); itS != listOfSubDpbsToEmpty.end() && allPicsMarkedNotNeedForOutput; itS++ ) |
---|
| 2365 | { |
---|
| 2366 | allPicsMarkedNotNeedForOutput = allPicsMarkedNotNeedForOutput && ( (*itS)->areAllPicsMarkedNotNeedForOutput() ); |
---|
| 2367 | } |
---|
| 2368 | |
---|
| 2369 | if ( !allPicsMarkedNotNeedForOutput ) |
---|
| 2370 | { |
---|
| 2371 | xF13524Bumping( m_dpb.getAusHavingPicsMarkedForOutput() ); |
---|
| 2372 | } |
---|
| 2373 | else |
---|
| 2374 | { |
---|
| 2375 | repeat = false; |
---|
| 2376 | } |
---|
| 2377 | } |
---|
| 2378 | } |
---|
| 2379 | else |
---|
| 2380 | { |
---|
| 2381 | // - Otherwise (NoOutputOfPriorPicsFlag is equal to 1), all picture storage buffers containing a picture |
---|
| 2382 | // that is marked as "not needed for output" and "unused for reference" are emptied (without output), |
---|
| 2383 | // all pictures that are contained in a sub-DPB included in listOfSubDpbsToEmpty are emptied, and the sub-DPB |
---|
| 2384 | // fullness of each sub-DPB is decremented by the number of picture storage buffers emptied in that sub-DPB. |
---|
| 2385 | m_dpb.emptyNotNeedForOutputAndUnusedForRef(); |
---|
| 2386 | |
---|
| 2387 | for( TComList<TComSubDpb*>::iterator iS = listOfSubDpbsToEmpty.begin(); iS != listOfSubDpbsToEmpty.end(); iS++) |
---|
| 2388 | { |
---|
| 2389 | m_dpb.emptySubDpbs( &listOfSubDpbsToEmpty ); |
---|
| 2390 | } |
---|
| 2391 | } |
---|
| 2392 | } |
---|
| 2393 | else |
---|
| 2394 | { |
---|
| 2395 | // - Otherwise, all picture storage buffers that contain a picture in the current layer and that are marked as |
---|
| 2396 | // "not needed for output" and "unused for reference" are emptied (without output). For each picture storage buffer that is emptied, |
---|
| 2397 | // the sub-DPB fullness is decremented by one. |
---|
| 2398 | |
---|
| 2399 | m_dpb.emptySubDpbNotNeedForOutputAndUnusedForRef( nuhLayerId ); |
---|
| 2400 | |
---|
| 2401 | // When one or more of the following conditions are true, the "bumping" process specified in clause F.13.5.2.4 |
---|
| 2402 | // is invoked repeatedly until none of the following conditions are true: |
---|
| 2403 | |
---|
| 2404 | Bool repeat = true; |
---|
| 2405 | while ( repeat ) |
---|
| 2406 | { |
---|
| 2407 | TComList<TComAu*> aus = m_dpb.getAusHavingPicsMarkedForOutput(); |
---|
| 2408 | |
---|
| 2409 | // The number of access units that contain at least one decoded picture in the DPB marked |
---|
| 2410 | // as "needed for output" is greater than MaxNumReorderPics. |
---|
| 2411 | Bool cond1 = ( aus.size() > m_maxNumReorderPics ); |
---|
| 2412 | |
---|
| 2413 | // MaxLatencyIncreasePlus1 is not equal to 0 and there is at least one access unit |
---|
| 2414 | // that contains at least one decoded picture in the DPB marked as "needed for output" |
---|
| 2415 | // for which the associated variable PicLatencyCount is greater than or equal to MaxLatencyValue. |
---|
| 2416 | Bool auWithGreaterLatencyCount = false; |
---|
| 2417 | for(TComList<TComAu*>::iterator itA= aus.begin(); ( itA!=aus.end()) && !auWithGreaterLatencyCount ; itA++) |
---|
| 2418 | { |
---|
| 2419 | if ( (*itA)->getPicLatencyCount() > m_maxLatencyValue ) |
---|
| 2420 | { |
---|
| 2421 | auWithGreaterLatencyCount = true; |
---|
| 2422 | } |
---|
| 2423 | } |
---|
| 2424 | |
---|
| 2425 | Bool cond2 = (m_maxLatencyIncreasePlus1 != 0 ) && auWithGreaterLatencyCount; |
---|
| 2426 | |
---|
| 2427 | // The number of pictures in the sub-DPB is greater than or equal to MaxDecPicBufferingMinus1 + 1. |
---|
| 2428 | Bool cond3 = ( m_dpb.getSubDpb( nuhLayerId, false )->size() >= m_maxDecPicBufferingMinus1[ nuhLayerId ] + 1 ); |
---|
| 2429 | |
---|
| 2430 | if ( cond1 || cond2 || cond3 ) |
---|
| 2431 | { |
---|
| 2432 | xF13524Bumping( aus ); |
---|
| 2433 | } |
---|
| 2434 | else |
---|
| 2435 | { |
---|
| 2436 | repeat = false; |
---|
| 2437 | } |
---|
| 2438 | } |
---|
| 2439 | } |
---|
| 2440 | } |
---|
| 2441 | } |
---|
| 2442 | |
---|
| 2443 | Void TAppDecTop::xF13523PicDecMarkAddBumpAndStor( Bool curPicIsLastInAu ) |
---|
| 2444 | { |
---|
| 2445 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2446 | // F.13.5.2.3 Picture decoding, marking, additional bumping and storage |
---|
| 2447 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2448 | |
---|
| 2449 | const TComVPS* vps = m_curPic->getSlice(0)->getVPS(); |
---|
| 2450 | |
---|
| 2451 | // The current picture is considered as decoded after the last decoding unit of |
---|
| 2452 | // the picture is decoded. The current decoded picture is stored in an empty picture |
---|
| 2453 | // storage buffer in the sub-DPB. |
---|
| 2454 | |
---|
| 2455 | m_dpb.addNewPic( m_curPic ); |
---|
| 2456 | |
---|
| 2457 | if ( curPicIsLastInAu ) |
---|
| 2458 | { |
---|
| 2459 | // When the current picture is the last picture in an access unit, the following applies |
---|
| 2460 | // for each decoded picture with nuh_layer_id greater than or |
---|
| 2461 | // equal to ( vps_base_layer_internal_flag ? 0 : 1 ) of the access unit: |
---|
| 2462 | |
---|
| 2463 | for( TComList<TComPic*>::iterator itP = m_curAu.begin(); itP != m_curAu.end(); itP++ ) |
---|
| 2464 | { |
---|
| 2465 | TComPic* pic = (*itP); |
---|
| 2466 | if( pic->getLayerId() >= ( vps->getVpsBaseLayerInternalFlag() ? 0 : 1 ) ) |
---|
| 2467 | { |
---|
| 2468 | if ( pic->getPicOutputFlag() ) |
---|
| 2469 | { |
---|
| 2470 | //If the decoded picture has PicOutputFlag equal to 1, it is marked as "needed for output". |
---|
| 2471 | pic->setOutputMark( true ); |
---|
| 2472 | } |
---|
| 2473 | else |
---|
| 2474 | { |
---|
| 2475 | // Otherwise it is marked as "not needed for output". |
---|
| 2476 | pic->setOutputMark( false ); |
---|
| 2477 | } |
---|
| 2478 | // NOTE - Prior to investigating the conditions above, PicOutputFlag |
---|
| 2479 | // of each picture of the access unit is updated as specified in clause F.8.1.2. |
---|
| 2480 | } |
---|
| 2481 | } |
---|
| 2482 | } |
---|
| 2483 | |
---|
| 2484 | // The current decoded picture is marked as "used for short-term reference". |
---|
| 2485 | m_curPic->markAsUsedForShortTermReference(); |
---|
| 2486 | |
---|
| 2487 | |
---|
| 2488 | Bool repeat = true; |
---|
| 2489 | while ( repeat ) |
---|
| 2490 | { |
---|
| 2491 | TComList<TComAu*> aus = m_dpb.getAusHavingPicsMarkedForOutput(); |
---|
| 2492 | |
---|
| 2493 | // When one or more of the following conditions are true, |
---|
| 2494 | // the "bumping" process specified in clause F.13.5.2.4 is invoked |
---|
| 2495 | // repeatedly until none of the following conditions are true: |
---|
| 2496 | |
---|
| 2497 | // - The number of access units that contain at least one decoded picture in the DPB marked |
---|
| 2498 | // as "needed for output" is greater than MaxNumReorderPics. |
---|
| 2499 | Bool cond1 = ( aus.size() > m_maxNumReorderPics ); |
---|
| 2500 | |
---|
| 2501 | // - MaxLatencyIncreasePlus1 is not equal to 0 and there is at least one access unit |
---|
| 2502 | // that contains at least one decoded picture in the DPB marked as "needed for output" |
---|
| 2503 | // for which the associated variable PicLatencyCount is greater than or equal to MaxLatencyValue. |
---|
| 2504 | Bool auWithGreaterLatencyCount = false; |
---|
| 2505 | for(TComList<TComAu*>::iterator itA= aus.begin(); ( itA!=aus.end()) && !auWithGreaterLatencyCount ; itA++) |
---|
| 2506 | { |
---|
| 2507 | if ( (*itA)->getPicLatencyCount() > m_maxLatencyValue ) |
---|
| 2508 | { |
---|
| 2509 | auWithGreaterLatencyCount = true; |
---|
| 2510 | } |
---|
| 2511 | } |
---|
| 2512 | |
---|
| 2513 | Bool cond2 = (m_maxLatencyIncreasePlus1 != 0 ) && auWithGreaterLatencyCount; |
---|
| 2514 | |
---|
| 2515 | if ( cond1 || cond2 ) |
---|
| 2516 | { |
---|
| 2517 | xF13524Bumping( aus ); |
---|
| 2518 | } |
---|
| 2519 | else |
---|
| 2520 | { |
---|
| 2521 | repeat = false; |
---|
| 2522 | } |
---|
| 2523 | } |
---|
| 2524 | } |
---|
| 2525 | |
---|
| 2526 | Void TAppDecTop::xF13524Bumping( TComList<TComAu*> aus ) |
---|
| 2527 | { |
---|
| 2528 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2529 | // F.13.5.2.4 "Bumping" process |
---|
| 2530 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2531 | |
---|
| 2532 | // The picture or pictures that are first for output are selected as the ones having the |
---|
| 2533 | // smallest value of PicOrderCntVal of all pictures in the DPB marked as "needed for output". |
---|
| 2534 | |
---|
| 2535 | assert( !aus.empty() ); |
---|
| 2536 | |
---|
| 2537 | // Create copy, since original AU from DBP is modified when removing pic. |
---|
| 2538 | TComAu auWithSmallestPoc = *((*aus.begin())); // List is sorted, hence the AU with smallest POC is the first. |
---|
| 2539 | |
---|
| 2540 | for(TComAu::iterator itP= auWithSmallestPoc.begin(); ( itP!=auWithSmallestPoc.end() ); itP++) |
---|
| 2541 | { |
---|
| 2542 | TComPic* pic = (*itP); |
---|
| 2543 | |
---|
| 2544 | if (pic->getOutputMark() ) |
---|
| 2545 | { |
---|
| 2546 | // Each of these pictures is, in ascending nuh_layer_id order, cropped, |
---|
| 2547 | // using the conformance cropping window specified in the active SPS for the picture, |
---|
| 2548 | // the cropped picture is output, and the picture is marked as "not needed for output". |
---|
| 2549 | |
---|
| 2550 | // pictures are sorted in the AU in ascending nuh_layer_id order. |
---|
| 2551 | |
---|
| 2552 | |
---|
| 2553 | xCropAndOutput( pic ); |
---|
| 2554 | pic->setOutputMark( false ); |
---|
| 2555 | |
---|
| 2556 | // Each picture storage buffer that contains a picture marked as "unused for reference" |
---|
| 2557 | // and that was one of the pictures cropped and output is emptied and the fullness of |
---|
| 2558 | // the associated sub-DPB is decremented by one. |
---|
| 2559 | |
---|
| 2560 | if (pic->getMarkedUnUsedForReference() ) |
---|
| 2561 | { |
---|
| 2562 | m_dpb.removePic( pic ); |
---|
| 2563 | } |
---|
| 2564 | } |
---|
| 2565 | } |
---|
| 2566 | } |
---|
| 2567 | |
---|
| 2568 | Void TAppDecTop::xF816decProcEndDecOfCodPicLIdGrtZero() |
---|
| 2569 | { |
---|
| 2570 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2571 | // F.8.1.6 Decoding process for ending the decoding of a coded picture with nuh_layer_id greater than 0 |
---|
| 2572 | //////////////////////////////////////////////////////////////////////////////// |
---|
| 2573 | |
---|
| 2574 | const TComSlice* slice = m_curPic->getSlice( 0 ); |
---|
| 2575 | const Int nuhLayerId = m_curPic->getLayerId(); |
---|
| 2576 | |
---|
| 2577 | assert( nuhLayerId != 0 ); |
---|
| 2578 | |
---|
| 2579 | //The marking of decoded pictures is modified as specified in the following: |
---|
| 2580 | for (Int i = 0; i < m_curPic->getDecodedRps()->m_numActiveRefLayerPics0;i++ ) |
---|
| 2581 | { |
---|
| 2582 | m_curPic->getDecodedRps()->m_refPicSetInterLayer0[i]->markAsUsedForShortTermReference(); |
---|
| 2583 | } |
---|
| 2584 | |
---|
| 2585 | for (Int i = 0; i < m_curPic->getDecodedRps()->m_numActiveRefLayerPics1;i++ ) |
---|
| 2586 | { |
---|
| 2587 | m_curPic->getDecodedRps()->m_refPicSetInterLayer1[i]->markAsUsedForShortTermReference(); |
---|
| 2588 | } |
---|
| 2589 | |
---|
| 2590 | // PicOutputFlag is set as follows: |
---|
| 2591 | if ( !m_layerInitilizedFlag[ nuhLayerId ] ) |
---|
| 2592 | { |
---|
| 2593 | // - If LayerInitializedFlag[ nuh_layer_id ] is equal to 0, PicOutputFlag is set equal to 0. |
---|
| 2594 | m_curPic->setPicOutputFlag( false ); |
---|
| 2595 | } |
---|
| 2596 | else if (m_curPic->isRasl( ) && m_noRaslOutputFlagAssocIrap[ nuhLayerId] ) |
---|
| 2597 | { |
---|
| 2598 | // - Otherwise, if the current picture is a RASL picture and NoRaslOutputFlag of the associated IRAP picture is equal to 1, |
---|
| 2599 | // PicOutputFlag is set equal to 0. |
---|
| 2600 | |
---|
| 2601 | m_curPic->setPicOutputFlag( false ); |
---|
| 2602 | } |
---|
| 2603 | else |
---|
| 2604 | { |
---|
| 2605 | // - Otherwise, PicOutputFlag is set equal to pic_output_flag. |
---|
| 2606 | m_curPic->setPicOutputFlag( slice->getPicOutputFlag() ); |
---|
| 2607 | } |
---|
| 2608 | |
---|
| 2609 | // The decoded picture is marked as "used for short-term reference". |
---|
| 2610 | m_curPic->markAsUsedForShortTermReference(); |
---|
| 2611 | |
---|
| 2612 | if ( !m_firstPicInLayerDecodedFlag[ nuhLayerId ] ) |
---|
| 2613 | { |
---|
| 2614 | // When FirstPicInLayerDecodedFlag[ nuh_layer_id ] is equal to 0, FirstPicInLayerDecodedFlag[ nuh_layer_id ] is set equal to 1. |
---|
| 2615 | m_firstPicInLayerDecodedFlag[ nuhLayerId ] = true; |
---|
| 2616 | } |
---|
| 2617 | } |
---|
| 2618 | |
---|
| 2619 | TDecTop* TAppDecTop::xGetDecoder( InputNALUnit& nalu ) |
---|
| 2620 | { |
---|
| 2621 | return m_tDecTop[ xGetDecoderIdx( nalu.m_nuhLayerId )]; |
---|
| 2622 | } |
---|
| 2623 | |
---|
| 2624 | |
---|
[608] | 2625 | Int TAppDecTop::xGetDecoderIdx( Int layerId, Bool createFlag /*= false */ ) |
---|
| 2626 | { |
---|
[1321] | 2627 | Int decIdx = -1; |
---|
[738] | 2628 | |
---|
[1321] | 2629 | if ( layerId > MAX_NUM_LAYER_IDS-1 ) |
---|
[738] | 2630 | { |
---|
[1321] | 2631 | return decIdx; |
---|
[738] | 2632 | } |
---|
| 2633 | |
---|
[1321] | 2634 | if ( m_layerIdToDecIdx[ layerId ] != -1 ) |
---|
| 2635 | { |
---|
| 2636 | decIdx = m_layerIdToDecIdx[ layerId ]; |
---|
[210] | 2637 | } |
---|
| 2638 | else |
---|
[1321] | 2639 | { |
---|
| 2640 | assert ( createFlag ); |
---|
| 2641 | assert( m_numDecoders < MAX_NUM_LAYERS ); |
---|
[210] | 2642 | |
---|
[1321] | 2643 | decIdx = m_numDecoders; |
---|
[608] | 2644 | |
---|
| 2645 | // Init decoder |
---|
| 2646 | m_tDecTop[ decIdx ] = new TDecTop; |
---|
| 2647 | m_tDecTop[ decIdx ]->create(); |
---|
| 2648 | m_tDecTop[ decIdx ]->init( ); |
---|
| 2649 | m_tDecTop[ decIdx ]->setLayerId( layerId ); |
---|
| 2650 | m_tDecTop[ decIdx ]->setDecodedPictureHashSEIEnabled(m_decodedPictureHashSEIEnabled); |
---|
[1321] | 2651 | m_tDecTop[ decIdx ]->setDpb( &m_dpb ); |
---|
| 2652 | m_tDecTop[ decIdx ]->setTargetOlsIdx( m_targetOptLayerSetIdx ); |
---|
| 2653 | m_tDecTop[ decIdx ]->setFirstPicInLayerDecodedFlag( m_firstPicInLayerDecodedFlag ); |
---|
| 2654 | m_tDecTop[ decIdx ]->setPocDecrementedInDPBFlag ( m_pocDecrementedInDpbFlag ); |
---|
| 2655 | m_tDecTop[ decIdx ]->setLastPresentPocResetIdc ( m_lastPresentPocResetIdc ); |
---|
| 2656 | |
---|
| 2657 | |
---|
[1313] | 2658 | #if O0043_BEST_EFFORT_DECODING |
---|
| 2659 | m_cTDecTop[ decIdx ]->setForceDecodeBitDepth(m_forceDecodeBitDepth); |
---|
[1179] | 2660 | #endif |
---|
[1313] | 2661 | if (!m_outputDecodedSEIMessagesFilename.empty()) |
---|
| 2662 | { |
---|
| 2663 | std::ostream &os=m_seiMessageFileStream.is_open() ? m_seiMessageFileStream : std::cout; |
---|
| 2664 | m_tDecTop[ decIdx ]->setDecodedSEIMessageOutputStream(&os); |
---|
| 2665 | } |
---|
| 2666 | #if NH_3D |
---|
[608] | 2667 | m_tDecTop[ decIdx ]->setCamParsCollector( &m_cCamParsCollector ); |
---|
[210] | 2668 | #endif |
---|
[2] | 2669 | |
---|
[1321] | 2670 | // append pic list of new decoder to PicLists |
---|
[2] | 2671 | |
---|
[1321] | 2672 | // create recon file related stuff |
---|
[608] | 2673 | Char* pchTempFilename = NULL; |
---|
| 2674 | if ( m_pchReconFile ) |
---|
[1321] | 2675 | { |
---|
| 2676 | Char buffer[4]; |
---|
[608] | 2677 | sprintf(buffer,"_%i", layerId ); |
---|
[1321] | 2678 | assert ( m_pchReconFile ); |
---|
[608] | 2679 | xAppendToFileNameEnd( m_pchReconFile , buffer, pchTempFilename ); |
---|
| 2680 | assert( m_pchReconFiles.size() == m_numDecoders ); |
---|
[2] | 2681 | } |
---|
[210] | 2682 | |
---|
[1321] | 2683 | m_pchReconFiles.push_back( pchTempFilename ); |
---|
[296] | 2684 | |
---|
[608] | 2685 | m_tVideoIOYuvReconFile[ decIdx ] = new TVideoIOYuv; |
---|
| 2686 | m_reconOpen [ decIdx ] = false; |
---|
[443] | 2687 | |
---|
[1321] | 2688 | // set others |
---|
| 2689 | m_layerIdToDecIdx [ layerId ] = decIdx; |
---|
[296] | 2690 | |
---|
[1321] | 2691 | m_numDecoders++; |
---|
[608] | 2692 | }; |
---|
| 2693 | return decIdx; |
---|
[964] | 2694 | |
---|
[296] | 2695 | } |
---|
[964] | 2696 | |
---|
[1321] | 2697 | Int TAppDecTop::xPreDecodePoc( InputNALUnit& nalu ) |
---|
[964] | 2698 | { |
---|
[1321] | 2699 | // - According to F.7.4.2.4.4, the POC of the current picture is required to detect whether it is the first in a new AU |
---|
| 2700 | // - F.8.1.3 needs to know if the current picture is the first of an AU |
---|
| 2701 | // actually before its POC has been decoded. |
---|
[964] | 2702 | |
---|
[1321] | 2703 | // Thus, in the software implementation the processes can not be invoked in the same order as in the Spec. |
---|
| 2704 | // For this, this function decodes the POC before invoking F.8.1.3. However, this is done without |
---|
| 2705 | // altering member variables |
---|
| 2706 | |
---|
| 2707 | // Do some stuff from F.8.1.3 required for POC derivation, which is not depending on AU detection. |
---|
| 2708 | TDecTop* dec = xGetDecoder( nalu ); |
---|
| 2709 | TComSlice* slicePilot = dec->getSlicePilot(); |
---|
| 2710 | Int nuhLayerId = nalu.m_nuhLayerId; |
---|
| 2711 | Int smallestLayerId = dec->getSmallestLayerId(); |
---|
| 2712 | |
---|
| 2713 | Int handleCraAsBlaFlag; |
---|
| 2714 | if ( nalu.isIrap() ) |
---|
[964] | 2715 | { |
---|
[1321] | 2716 | if ( !m_handleCraAsBlaFlagSetByExtMeans ) |
---|
| 2717 | { |
---|
| 2718 | handleCraAsBlaFlag = false; |
---|
| 2719 | } |
---|
| 2720 | } |
---|
[964] | 2721 | |
---|
[1321] | 2722 | Bool firstPicInLayerDecodedFlag = m_firstPicInLayerDecodedFlag[ nalu.m_nuhLayerId ]; |
---|
| 2723 | |
---|
| 2724 | if ( nalu.isIrap() && nuhLayerId == smallestLayerId ) |
---|
| 2725 | { |
---|
| 2726 | Int noClrasOutputFlag; |
---|
| 2727 | if( m_firstSliceInBitstream ) |
---|
| 2728 | { |
---|
| 2729 | noClrasOutputFlag = true; |
---|
| 2730 | } |
---|
| 2731 | else if( m_eosInLayer[ 0 ] || m_eosInLayer[ nuhLayerId ] ) |
---|
| 2732 | { |
---|
| 2733 | noClrasOutputFlag = true; |
---|
| 2734 | } |
---|
| 2735 | else if ( nalu.isBla() || (nalu.isCra() && handleCraAsBlaFlag )) |
---|
| 2736 | { |
---|
| 2737 | noClrasOutputFlag = true; |
---|
| 2738 | } |
---|
| 2739 | else if ( nalu.isIdr() && slicePilot->getCrossLayerBlaFlag() ) |
---|
| 2740 | { |
---|
| 2741 | noClrasOutputFlag = true; |
---|
| 2742 | } |
---|
| 2743 | else if ( m_noClrasOutputFlagSetByExtMeans ) |
---|
| 2744 | { |
---|
| 2745 | noClrasOutputFlag = m_noClrasOutputFlag; |
---|
| 2746 | } |
---|
| 2747 | else |
---|
| 2748 | { |
---|
| 2749 | noClrasOutputFlag = false; |
---|
| 2750 | } |
---|
[964] | 2751 | |
---|
[1321] | 2752 | if( noClrasOutputFlag ) |
---|
[964] | 2753 | { |
---|
[1321] | 2754 | firstPicInLayerDecodedFlag = false; |
---|
| 2755 | } |
---|
| 2756 | } |
---|
| 2757 | |
---|
| 2758 | // Derive POC |
---|
| 2759 | return dec->preDecodePoc(firstPicInLayerDecodedFlag, m_newPicIsFstPicOfAllLayOfPocResetPer, m_newPicIsPocResettingPic ); |
---|
| 2760 | } |
---|
| 2761 | |
---|
| 2762 | Bool TAppDecTop::xDetectNewAu( InputNALUnit& nalu ) |
---|
| 2763 | { |
---|
| 2764 | TDecTop* dec = xGetDecoder( nalu ); |
---|
| 2765 | TComSlice* slicePilot = dec->getSlicePilot(); |
---|
| 2766 | const TComVPS* vps = slicePilot->getVPS(); |
---|
| 2767 | |
---|
| 2768 | Bool firstVclNaluOfAu; |
---|
| 2769 | |
---|
| 2770 | if (m_curPic == NULL ) |
---|
| 2771 | { |
---|
| 2772 | // No picture decoded yet, so we have a new AU. |
---|
| 2773 | firstVclNaluOfAu = true; |
---|
| 2774 | } |
---|
| 2775 | else |
---|
| 2776 | { |
---|
| 2777 | if ( !vps->getVpsExtensionFlag() ) |
---|
| 2778 | { |
---|
| 2779 | // Decoding according to clause 8, hence one pic per AU. |
---|
| 2780 | firstVclNaluOfAu = slicePilot->getFirstSliceSegementInPicFlag(); |
---|
| 2781 | } |
---|
| 2782 | else |
---|
| 2783 | { |
---|
| 2784 | if ( dec->getTargetOlsIdx() == 0 ) |
---|
[964] | 2785 | { |
---|
[1321] | 2786 | // Only the base layer is decoded, hence one pic per AU. |
---|
| 2787 | firstVclNaluOfAu = slicePilot->getFirstSliceSegementInPicFlag(); |
---|
[964] | 2788 | } |
---|
| 2789 | else |
---|
[1321] | 2790 | { |
---|
| 2791 | // F.7.4.2.4.4 Order of NAL units and coded pictures and association to access units |
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| 2792 | // An access unit consists of one or more coded pictures, each with a distinct value of |
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| 2793 | // nuh_layer_id, and zero or more non-VCL NAL units. |
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| 2794 | |
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| 2795 | // A VCL NAL unit is the first VCL NAL unit of an access unit, when all of the following conditions are true: |
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| 2796 | // - first_slice_segment_in_pic_flag is equal to 1. |
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| 2797 | // - At least one of the following conditions is true: |
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| 2798 | // - The previous picture in decoding order belongs to a different POC resetting period |
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| 2799 | // than the picture containing the VCL NAL unit. |
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| 2800 | Bool prevPicDiffPocResetPeriod = m_newPicIsFstPicOfAllLayOfPocResetPer; |
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| 2801 | |
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| 2802 | // - PicOrderCntVal derived for the VCL NAL unit differs from the PicOrderCntVal of the |
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| 2803 | // previous picture in decoding order. |
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| 2804 | Bool prevPicDiffPoc = ( xPreDecodePoc( nalu ) != m_curPic->getPOC() ); |
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| 2805 | |
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| 2806 | if( slicePilot->getFirstSliceSegementInPicFlag() && ( prevPicDiffPocResetPeriod || prevPicDiffPoc ) ) |
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| 2807 | { |
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| 2808 | firstVclNaluOfAu = true; |
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| 2809 | } |
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| 2810 | else |
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| 2811 | { |
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| 2812 | firstVclNaluOfAu = false; |
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| 2813 | } |
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[964] | 2814 | } |
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| 2815 | } |
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[1321] | 2816 | } |
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| 2817 | return firstVclNaluOfAu; |
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| 2818 | } |
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| 2819 | |
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| 2820 | Void TAppDecTop::xDetectNewPocResettingPeriod( InputNALUnit& nalu ) |
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| 2821 | { |
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| 2822 | TDecTop* dec = xGetDecoder( nalu ); |
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| 2823 | dec->inferPocResetPeriodId(); |
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| 2824 | |
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| 2825 | |
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| 2826 | Int pocResetIdc = dec->getSlicePilot()->getPocResetIdc(); |
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| 2827 | Int newPocResetPeriodId = dec->getSlicePilot()->getPocResetPeriodId(); |
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| 2828 | |
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| 2829 | Int curPocResetPeriodId = ( m_curPic != NULL) ? m_curPic->getPocResetPeriodId() : MIN_INT; |
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| 2830 | |
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| 2831 | // Check if new picture starts a new poc resetting period. |
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| 2832 | if( ( pocResetIdc == 1 || pocResetIdc == 2 ) && ( curPocResetPeriodId != newPocResetPeriodId ) ) |
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| 2833 | { |
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| 2834 | for (Int i = 0; i < MAX_NUM_LAYER_IDS; i++ ) |
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[964] | 2835 | { |
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[1321] | 2836 | m_firstPicInPocResettingPeriodReceived[ i ] = false; |
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[964] | 2837 | } |
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[1321] | 2838 | m_newPicIsFstPicOfAllLayOfPocResetPer = true; |
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| 2839 | } |
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| 2840 | else |
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| 2841 | { |
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| 2842 | m_newPicIsFstPicOfAllLayOfPocResetPer = false; |
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| 2843 | } |
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[964] | 2844 | |
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[1321] | 2845 | // Check if current picture is a poc resetting picture (thus the first picture of this layer within the POC resetting period. |
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| 2846 | if ( !m_firstPicInPocResettingPeriodReceived[ nalu.m_nuhLayerId ] ) |
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| 2847 | { |
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| 2848 | m_newPicIsPocResettingPic = true; |
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| 2849 | m_firstPicInPocResettingPeriodReceived[ nalu.m_nuhLayerId ] = true; |
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| 2850 | } |
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| 2851 | else |
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| 2852 | { |
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| 2853 | m_newPicIsPocResettingPic = false; |
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| 2854 | } |
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| 2855 | |
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| 2856 | } |
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| 2857 | |
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| 2858 | Bool TAppDecTop::xAllRefLayersInitilized( Int curLayerId ) |
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| 2859 | { |
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| 2860 | Bool allRefLayersInitilizedFlag = true; |
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| 2861 | for (Int i = 0; i < m_vps->getNumDirectRefLayers( curLayerId ); i++ ) |
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| 2862 | { |
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| 2863 | Int refLayerId = m_vps->getIdDirectRefLayer( curLayerId, i ); |
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| 2864 | allRefLayersInitilizedFlag = allRefLayersInitilizedFlag && m_layerInitilizedFlag[ refLayerId ]; |
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| 2865 | } |
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| 2866 | |
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| 2867 | return allRefLayersInitilizedFlag; |
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| 2868 | } |
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| 2869 | |
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| 2870 | Void TAppDecTop::xInitFileIO() |
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| 2871 | { |
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| 2872 | m_bitstreamFile.open(m_pchBitstreamFile, ifstream::in | ifstream::binary); |
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| 2873 | |
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| 2874 | if ( !m_bitstreamFile) |
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| 2875 | { |
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| 2876 | fprintf(stderr, "\nUnable to open bitstream file `%s' for reading\n", m_pchBitstreamFile); |
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| 2877 | exit(EXIT_FAILURE); |
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| 2878 | } |
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| 2879 | |
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| 2880 | if (!m_outputDecodedSEIMessagesFilename.empty() && m_outputDecodedSEIMessagesFilename!="-") |
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| 2881 | { |
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| 2882 | m_seiMessageFileStream.open(m_outputDecodedSEIMessagesFilename.c_str(), std::ios::out); |
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| 2883 | if (!m_seiMessageFileStream.is_open() || !m_seiMessageFileStream.good()) |
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[964] | 2884 | { |
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[1321] | 2885 | fprintf(stderr, "\nUnable to open file `%s' for writing decoded SEI messages\n", m_outputDecodedSEIMessagesFilename.c_str()); |
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| 2886 | exit(EXIT_FAILURE); |
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[964] | 2887 | } |
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| 2888 | } |
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[1321] | 2889 | |
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| 2890 | #if NH_3D |
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| 2891 | if( m_pchScaleOffsetFile ) |
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| 2892 | { |
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| 2893 | m_pScaleOffsetFile = ::fopen( m_pchScaleOffsetFile, "wt" ); |
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| 2894 | if (!m_pScaleOffsetFile) |
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| 2895 | { |
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| 2896 | fprintf(stderr, "\nUnable to open file `%s' for writing decoded Camera Parameters messages\n", m_pchScaleOffsetFile); |
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| 2897 | exit(EXIT_FAILURE); |
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| 2898 | } |
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| 2899 | } |
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| 2900 | #endif |
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| 2901 | } |
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| 2902 | |
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| 2903 | Void TAppDecTop::xOpenReconFile( TComPic* curPic ) |
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| 2904 | { |
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| 2905 | Int decIdx = xGetDecoderIdx( curPic->getLayerId() ); |
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| 2906 | |
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| 2907 | if ( m_pchReconFile && !m_reconOpen[decIdx] ) |
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| 2908 | { |
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| 2909 | const BitDepths &bitDepths= curPic->getPicSym()->getSPS().getBitDepths(); // use bit depths of first reconstructed picture. |
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| 2910 | for (UInt channelType = 0; channelType < MAX_NUM_CHANNEL_TYPE; channelType++) |
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| 2911 | { |
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| 2912 | if (m_outputBitDepth[channelType] == 0) |
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[964] | 2913 | { |
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[1321] | 2914 | m_outputBitDepth[channelType] = bitDepths.recon[channelType]; |
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[964] | 2915 | } |
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| 2916 | } |
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[1321] | 2917 | |
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| 2918 | m_tVideoIOYuvReconFile[decIdx]->open( m_pchReconFiles[decIdx], true, m_outputBitDepth, m_outputBitDepth, bitDepths.recon ); // write mode |
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| 2919 | m_reconOpen[decIdx] = true; |
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[964] | 2920 | } |
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| 2921 | } |
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[976] | 2922 | |
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[1321] | 2923 | Void TAppDecTop::xFlushOutput() |
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[976] | 2924 | { |
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[1321] | 2925 | Bool repeat = true; |
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| 2926 | while ( repeat ) |
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[976] | 2927 | { |
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[1321] | 2928 | if( m_decProcCvsg == ANNEX_F ) |
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[976] | 2929 | { |
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[1321] | 2930 | TComList<TComAu*> aus = m_dpb.getAusHavingPicsMarkedForOutput(); |
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| 2931 | if ( !aus.empty() ) |
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[976] | 2932 | { |
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[1321] | 2933 | xF13524Bumping( aus ); |
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| 2934 | } |
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| 2935 | else |
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| 2936 | { |
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| 2937 | repeat = false; |
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[976] | 2938 | } |
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[1321] | 2939 | } |
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| 2940 | else if( m_decProcCvsg == CLAUSE_8 ) |
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| 2941 | { |
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| 2942 | TComList<TComPic*> picsMarkedForOutput = m_dpb.getSubDpb( 0, false )->getPicsMarkedNeedForOutput(); |
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| 2943 | if (!picsMarkedForOutput.empty()) |
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| 2944 | { |
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| 2945 | xC524Bumping(); |
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| 2946 | } |
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| 2947 | else |
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| 2948 | { |
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| 2949 | repeat = false; |
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| 2950 | } |
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[976] | 2951 | } |
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| 2952 | } |
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[1321] | 2953 | } |
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| 2954 | |
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| 2955 | Void TAppDecTop::xCropAndOutput( TComPic* curPic ) |
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| 2956 | { |
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| 2957 | |
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| 2958 | if ( m_printPicOutput ) |
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[976] | 2959 | { |
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[1321] | 2960 | std::cout << " Output picture: "; |
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| 2961 | curPic->print( 2 ); |
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| 2962 | std::cout << std::endl; |
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[976] | 2963 | } |
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[1321] | 2964 | |
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| 2965 | assert( !curPic->getHasGeneratedRefPics() ); |
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| 2966 | assert( !curPic->getIsGenerated() ); |
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| 2967 | |
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| 2968 | Int decIdx = xGetDecoderIdx( curPic->getLayerId() ); |
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| 2969 | |
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| 2970 | if (!m_reconOpen[ decIdx ]) |
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| 2971 | { |
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| 2972 | xOpenReconFile( curPic ); |
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| 2973 | } |
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| 2974 | |
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| 2975 | if ( m_pchReconFiles[ decIdx ] ) |
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| 2976 | { |
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| 2977 | const Window &conf = curPic->getConformanceWindow(); |
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| 2978 | const Window defDisp = m_respectDefDispWindow ? curPic->getDefDisplayWindow() : Window(); |
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| 2979 | |
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| 2980 | assert( conf .getScaledFlag() ); |
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| 2981 | assert( defDisp.getScaledFlag() ); |
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| 2982 | |
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| 2983 | m_tVideoIOYuvReconFile[decIdx]->write( curPic->getPicYuvRec(), |
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| 2984 | m_outputColourSpaceConvert, |
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| 2985 | conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(), |
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| 2986 | conf.getWindowRightOffset() + defDisp.getWindowRightOffset(), |
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| 2987 | conf.getWindowTopOffset() + defDisp.getWindowTopOffset(), |
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| 2988 | conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset(), |
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| 2989 | #if NH_3D |
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| 2990 | m_depth420OutputFlag && curPic->getIsDepth() ? CHROMA_420 : NUM_CHROMA_FORMAT |
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| 2991 | #else |
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| 2992 | NUM_CHROMA_FORMAT |
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| 2993 | #endif |
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| 2994 | , m_bClipOutputVideoToRec709Range); |
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| 2995 | } |
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[976] | 2996 | } |
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| 2997 | |
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[1321] | 2998 | UInt TAppDecTop::getNumberOfChecksumErrorsDetected() const |
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| 2999 | { |
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| 3000 | UInt numOfChecksumErrors = 0; |
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| 3001 | for (Int i = 0; i < m_numDecoders; i++ ) |
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| 3002 | { |
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| 3003 | numOfChecksumErrors += getNumberOfChecksumErrorsDetected( i ); |
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| 3004 | } |
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| 3005 | return numOfChecksumErrors; |
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| 3006 | } |
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| 3007 | |
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[296] | 3008 | #endif |
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[56] | 3009 | //! \} |
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