1 | /* The copyright in this software is being made available under the BSD |
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2 | * License, included below. This software may be subject to other third party |
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3 | * and contributor rights, including patent rights, and no such rights are |
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4 | * granted under this license. |
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5 | * |
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6 | * Copyright (c) 2010-2013, ITU/ISO/IEC |
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7 | * All rights reserved. |
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8 | * |
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9 | * Redistribution and use in source and binary forms, with or without |
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10 | * modification, are permitted provided that the following conditions are met: |
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11 | * |
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12 | * * Redistributions of source code must retain the above copyright notice, |
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13 | * this list of conditions and the following disclaimer. |
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14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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15 | * this list of conditions and the following disclaimer in the documentation |
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16 | * and/or other materials provided with the distribution. |
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17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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18 | * be used to endorse or promote products derived from this software without |
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19 | * specific prior written permission. |
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20 | * |
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21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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32 | */ |
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33 | |
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34 | /** \file 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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39 | #include <vector> |
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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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45 | #include "TLibDecoder/AnnexBread.h" |
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46 | #include "TLibDecoder/NALread.h" |
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47 | |
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48 | //! \ingroup TAppDecoder |
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49 | //! \{ |
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50 | |
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51 | // ==================================================================================================================== |
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52 | // Constructor / destructor / initialization / destroy |
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53 | // ==================================================================================================================== |
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54 | |
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55 | TAppDecTop::TAppDecTop() |
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56 | |
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57 | #if !H_MV |
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58 | : m_iPOCLastDisplay(-MAX_INT) |
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59 | #else |
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60 | : m_numDecoders( 0 ) |
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61 | #endif |
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62 | |
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63 | { |
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64 | ::memset (m_abDecFlag, 0, sizeof (m_abDecFlag)); |
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65 | #if H_MV |
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66 | for (Int i = 0; i < MAX_NUM_LAYER_IDS; i++) m_layerIdToDecIdx[i] = -1; |
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67 | #endif |
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68 | } |
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69 | |
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70 | Void TAppDecTop::create() |
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71 | { |
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72 | } |
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73 | |
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74 | Void TAppDecTop::destroy() |
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75 | { |
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76 | if (m_pchBitstreamFile) |
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77 | { |
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78 | free (m_pchBitstreamFile); |
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79 | m_pchBitstreamFile = NULL; |
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80 | } |
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81 | |
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82 | #if H_MV |
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83 | for (Int decIdx = 0; decIdx < m_numDecoders; decIdx++) |
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84 | { |
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85 | if (m_pchReconFiles[decIdx]) |
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86 | { |
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87 | free (m_pchReconFiles[decIdx]); |
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88 | m_pchReconFiles[decIdx] = NULL; |
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89 | } |
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90 | } |
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91 | #endif |
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92 | if (m_pchReconFile) |
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93 | { |
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94 | free (m_pchReconFile); |
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95 | m_pchReconFile = NULL; |
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96 | } |
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97 | } |
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98 | |
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99 | // ==================================================================================================================== |
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100 | // Public member functions |
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101 | // ==================================================================================================================== |
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102 | |
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103 | /** |
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104 | - create internal class |
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105 | - initialize internal class |
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106 | - until the end of the bitstream, call decoding function in TDecTop class |
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107 | - delete allocated buffers |
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108 | - destroy internal class |
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109 | . |
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110 | */ |
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111 | Void TAppDecTop::decode() |
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112 | { |
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113 | Int poc; |
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114 | #if H_MV |
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115 | poc = -1; |
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116 | #endif |
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117 | |
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118 | TComList<TComPic*>* pcListPic = NULL; |
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119 | |
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120 | ifstream bitstreamFile(m_pchBitstreamFile, ifstream::in | ifstream::binary); |
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121 | if (!bitstreamFile) |
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122 | { |
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123 | fprintf(stderr, "\nfailed to open bitstream file `%s' for reading\n", m_pchBitstreamFile); |
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124 | exit(EXIT_FAILURE); |
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125 | } |
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126 | |
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127 | InputByteStream bytestream(bitstreamFile); |
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128 | |
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129 | // create & initialize internal classes |
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130 | xCreateDecLib(); |
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131 | xInitDecLib (); |
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132 | #if !H_MV |
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133 | m_iPOCLastDisplay += m_iSkipFrame; // set the last displayed POC correctly for skip forward. |
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134 | |
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135 | // main decoder loop |
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136 | Bool recon_opened = false; // reconstruction file not yet opened. (must be performed after SPS is seen) |
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137 | #else |
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138 | Int pocCurrPic = -MAX_INT; |
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139 | Int pocLastPic = -MAX_INT; |
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140 | |
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141 | Int layerIdLastPic = 0; |
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142 | Int layerIdCurrPic = 0; |
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143 | |
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144 | Int decIdxLastPic = 0; |
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145 | Int decIdxCurrPic = 0; |
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146 | |
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147 | Bool firstSlice = true; |
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148 | #endif |
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149 | |
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150 | |
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151 | while (!!bitstreamFile) |
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152 | { |
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153 | /* location serves to work around a design fault in the decoder, whereby |
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154 | * the process of reading a new slice that is the first slice of a new frame |
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155 | * requires the TDecTop::decode() method to be called again with the same |
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156 | * nal unit. */ |
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157 | streampos location = bitstreamFile.tellg(); |
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158 | AnnexBStats stats = AnnexBStats(); |
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159 | #if !H_MV |
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160 | Bool bPreviousPictureDecoded = false; |
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161 | #endif |
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162 | vector<uint8_t> nalUnit; |
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163 | InputNALUnit nalu; |
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164 | byteStreamNALUnit(bytestream, nalUnit, stats); |
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165 | |
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166 | // call actual decoding function |
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167 | Bool bNewPicture = false; |
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168 | #if H_MV |
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169 | Bool newSliceDiffPoc = false; |
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170 | Bool newSliceDiffLayer = false; |
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171 | Bool allLayersDecoded = false; |
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172 | #endif |
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173 | if (nalUnit.empty()) |
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174 | { |
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175 | /* this can happen if the following occur: |
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176 | * - empty input file |
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177 | * - two back-to-back start_code_prefixes |
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178 | * - start_code_prefix immediately followed by EOF |
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179 | */ |
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180 | fprintf(stderr, "Warning: Attempt to decode an empty NAL unit\n"); |
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181 | } |
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182 | else |
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183 | { |
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184 | read(nalu, nalUnit); |
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185 | #if H_MV |
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186 | Int decIdx = xGetDecoderIdx( nalu.m_layerId , true ); |
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187 | |
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188 | if( (m_iMaxTemporalLayer >= 0 && nalu.m_temporalId > m_iMaxTemporalLayer) || !isNaluWithinTargetDecLayerIdSet(&nalu) ) |
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189 | { |
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190 | bNewPicture = false; |
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191 | } |
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192 | else |
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193 | { |
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194 | newSliceDiffLayer = nalu.isSlice() && ( nalu.m_layerId != layerIdCurrPic ) && !firstSlice; |
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195 | newSliceDiffPoc = m_tDecTop[decIdx]->decode(nalu, m_iSkipFrame, m_pocLastDisplay[decIdx], newSliceDiffLayer ); |
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196 | // decode function only returns true when all of the following conditions are true |
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197 | // - poc in particular layer changes |
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198 | // - nalu does not belong to first slice in layer |
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199 | // - nalu.isSlice() == true |
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200 | |
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201 | bNewPicture = newSliceDiffLayer || newSliceDiffPoc; |
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202 | |
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203 | if ( nalu.isSlice() && firstSlice ) |
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204 | { |
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205 | layerIdCurrPic = nalu.m_layerId; |
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206 | pocCurrPic = m_tDecTop[decIdx]->getCurrPoc(); |
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207 | decIdxCurrPic = decIdx; |
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208 | firstSlice = false; |
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209 | } |
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210 | |
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211 | if ( bNewPicture || !bitstreamFile ) |
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212 | { |
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213 | layerIdLastPic = layerIdCurrPic; |
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214 | layerIdCurrPic = nalu.m_layerId; |
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215 | |
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216 | pocLastPic = pocCurrPic; |
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217 | pocCurrPic = m_tDecTop[decIdx]->getCurrPoc(); |
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218 | |
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219 | decIdxLastPic = decIdxCurrPic; |
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220 | decIdxCurrPic = decIdx; |
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221 | |
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222 | allLayersDecoded = ( pocCurrPic != pocLastPic ); |
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223 | } |
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224 | |
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225 | |
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226 | #else |
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227 | if( (m_iMaxTemporalLayer >= 0 && nalu.m_temporalId > m_iMaxTemporalLayer) || !isNaluWithinTargetDecLayerIdSet(&nalu) ) |
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228 | { |
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229 | if(bPreviousPictureDecoded) |
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230 | { |
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231 | bNewPicture = true; |
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232 | bPreviousPictureDecoded = false; |
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233 | } |
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234 | else |
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235 | { |
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236 | bNewPicture = false; |
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237 | } |
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238 | } |
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239 | else |
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240 | { |
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241 | bNewPicture = m_cTDecTop.decode(nalu, m_iSkipFrame, m_iPOCLastDisplay); |
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242 | #endif |
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243 | if (bNewPicture) |
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244 | { |
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245 | bitstreamFile.clear(); |
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246 | /* location points to the current nalunit payload[1] due to the |
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247 | * need for the annexB parser to read three extra bytes. |
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248 | * [1] except for the first NAL unit in the file |
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249 | * (but bNewPicture doesn't happen then) */ |
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250 | bitstreamFile.seekg(location-streamoff(3)); |
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251 | bytestream.reset(); |
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252 | } |
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253 | #if !H_MV |
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254 | bPreviousPictureDecoded = true; |
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255 | #endif |
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256 | } |
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257 | } |
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258 | if (bNewPicture || !bitstreamFile) |
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259 | { |
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260 | #if H_MV |
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261 | assert( decIdxLastPic != -1 ); |
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262 | m_tDecTop[decIdxLastPic]->endPicDecoding(poc, pcListPic, m_targetDecLayerIdSet ); |
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263 | #else |
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264 | m_cTDecTop.executeLoopFilters(poc, pcListPic); |
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265 | #endif |
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266 | } |
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267 | #if H_3D |
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268 | if ( allLayersDecoded || !bitstreamFile ) |
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269 | { |
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270 | for( Int dI = 0; dI < m_numDecoders; dI++ ) |
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271 | { |
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272 | TComPic* picLastCoded = m_ivPicLists.getPic( m_tDecTop[dI]->getLayerId(), pocLastPic ); |
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273 | assert( picLastCoded != NULL ); |
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274 | picLastCoded->compressMotion(); |
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275 | } |
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276 | } |
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277 | #endif |
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278 | if( pcListPic ) |
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279 | { |
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280 | #if H_MV |
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281 | if ( m_pchReconFiles[decIdxLastPic] && !m_reconOpen[decIdxLastPic] ) |
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282 | #else |
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283 | if ( m_pchReconFile && !recon_opened ) |
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284 | #endif |
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285 | { |
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286 | if (!m_outputBitDepthY) { m_outputBitDepthY = g_bitDepthY; } |
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287 | if (!m_outputBitDepthC) { m_outputBitDepthC = g_bitDepthC; } |
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288 | #if H_MV |
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289 | m_tVideoIOYuvReconFile[decIdxLastPic]->open( m_pchReconFiles[decIdxLastPic], true, m_outputBitDepthY, m_outputBitDepthC, g_bitDepthY, g_bitDepthC ); // write mode |
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290 | m_reconOpen[decIdxLastPic] = true; |
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291 | } |
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292 | if ( bNewPicture && newSliceDiffPoc && |
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293 | #else |
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294 | m_cTVideoIOYuvReconFile.open( m_pchReconFile, true, m_outputBitDepthY, m_outputBitDepthC, g_bitDepthY, g_bitDepthC ); // write mode |
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295 | recon_opened = true; |
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296 | } |
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297 | if ( bNewPicture && |
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298 | #endif |
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299 | ( nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_IDR |
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300 | || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_IDR_N_LP |
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301 | || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_BLA_N_LP |
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302 | || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_BLANT |
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303 | || nalu.m_nalUnitType == NAL_UNIT_CODED_SLICE_BLA ) ) |
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304 | { |
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305 | #if H_MV |
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306 | xFlushOutput( pcListPic, decIdxLastPic ); |
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307 | #else |
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308 | xFlushOutput( pcListPic ); |
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309 | #endif |
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310 | } |
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311 | // write reconstruction to file |
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312 | if(bNewPicture) |
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313 | { |
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314 | #if H_MV |
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315 | xWriteOutput( pcListPic, decIdxLastPic, nalu.m_temporalId ); |
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316 | } |
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317 | } |
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318 | } |
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319 | |
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320 | for(UInt decIdx = 0; decIdx < m_numDecoders; decIdx++) |
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321 | { |
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322 | xFlushOutput( m_tDecTop[decIdx]->getListPic(), decIdx ); |
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323 | } |
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324 | #else |
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325 | xWriteOutput( pcListPic, nalu.m_temporalId ); |
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326 | } |
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327 | } |
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328 | } |
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329 | |
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330 | xFlushOutput( pcListPic ); |
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331 | // delete buffers |
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332 | m_cTDecTop.deletePicBuffer(); |
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333 | #endif |
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334 | |
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335 | // destroy internal classes |
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336 | xDestroyDecLib(); |
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337 | } |
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338 | |
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339 | // ==================================================================================================================== |
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340 | // Protected member functions |
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341 | // ==================================================================================================================== |
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342 | |
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343 | Void TAppDecTop::xCreateDecLib() |
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344 | { |
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345 | #if H_MV |
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346 | // initialize global variables |
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347 | initROM(); |
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348 | #else |
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349 | // create decoder class |
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350 | m_cTDecTop.create(); |
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351 | #endif |
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352 | } |
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353 | |
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354 | Void TAppDecTop::xDestroyDecLib() |
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355 | { |
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356 | #if H_MV |
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357 | // destroy ROM |
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358 | destroyROM(); |
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359 | |
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360 | for(Int decIdx = 0; decIdx < m_numDecoders ; decIdx++) |
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361 | { |
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362 | if( m_tVideoIOYuvReconFile[decIdx] ) |
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363 | { |
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364 | m_tVideoIOYuvReconFile[decIdx]->close(); |
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365 | delete m_tVideoIOYuvReconFile[decIdx]; |
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366 | m_tVideoIOYuvReconFile[decIdx] = NULL ; |
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367 | } |
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368 | |
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369 | if( m_tDecTop[decIdx] ) |
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370 | { |
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371 | m_tDecTop[decIdx]->deletePicBuffer(); |
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372 | m_tDecTop[decIdx]->destroy() ; |
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373 | } |
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374 | delete m_tDecTop[decIdx] ; |
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375 | m_tDecTop[decIdx] = NULL ; |
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376 | } |
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377 | #else |
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378 | if ( m_pchReconFile ) |
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379 | { |
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380 | m_cTVideoIOYuvReconFile. close(); |
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381 | } |
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382 | |
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383 | // destroy decoder class |
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384 | m_cTDecTop.destroy(); |
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385 | #endif |
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386 | } |
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387 | |
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388 | Void TAppDecTop::xInitDecLib() |
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389 | { |
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390 | #if !H_MV |
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391 | // initialize decoder class |
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392 | m_cTDecTop.init(); |
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393 | m_cTDecTop.setDecodedPictureHashSEIEnabled(m_decodedPictureHashSEIEnabled); |
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394 | #endif |
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395 | } |
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396 | |
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397 | /** \param pcListPic list of pictures to be written to file |
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398 | \todo DYN_REF_FREE should be revised |
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399 | */ |
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400 | #if H_MV |
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401 | Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, Int decIdx, Int tId ) |
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402 | #else |
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403 | Void TAppDecTop::xWriteOutput( TComList<TComPic*>* pcListPic, UInt tId ) |
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404 | #endif |
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405 | { |
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406 | TComList<TComPic*>::iterator iterPic = pcListPic->begin(); |
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407 | Int not_displayed = 0; |
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408 | |
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409 | while (iterPic != pcListPic->end()) |
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410 | { |
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411 | TComPic* pcPic = *(iterPic); |
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412 | #if H_MV |
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413 | if(pcPic->getOutputMark() && pcPic->getPOC() > m_pocLastDisplay[decIdx]) |
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414 | #else |
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415 | if(pcPic->getOutputMark() && pcPic->getPOC() > m_iPOCLastDisplay) |
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416 | #endif |
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417 | { |
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418 | not_displayed++; |
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419 | } |
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420 | iterPic++; |
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421 | } |
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422 | iterPic = pcListPic->begin(); |
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423 | |
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424 | while (iterPic != pcListPic->end()) |
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425 | { |
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426 | TComPic* pcPic = *(iterPic); |
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427 | |
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428 | #if H_MV |
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429 | if ( pcPic->getOutputMark() && (not_displayed > pcPic->getNumReorderPics(tId) && pcPic->getPOC() > m_pocLastDisplay[decIdx])) |
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430 | #else |
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431 | if ( pcPic->getOutputMark() && (not_displayed > pcPic->getNumReorderPics(tId) && pcPic->getPOC() > m_iPOCLastDisplay)) |
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432 | #endif |
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433 | { |
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434 | // write to file |
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435 | not_displayed--; |
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436 | #if H_MV |
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437 | if ( m_pchReconFiles[decIdx] ) |
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438 | #else |
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439 | if ( m_pchReconFile ) |
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440 | #endif |
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441 | { |
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442 | const Window &conf = pcPic->getConformanceWindow(); |
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443 | const Window &defDisp = m_respectDefDispWindow ? pcPic->getDefDisplayWindow() : Window(); |
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444 | #if H_MV |
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445 | m_tVideoIOYuvReconFile[decIdx]->write( pcPic->getPicYuvRec(), |
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446 | #else |
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447 | m_cTVideoIOYuvReconFile.write( pcPic->getPicYuvRec(), |
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448 | #endif |
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449 | conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(), |
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450 | conf.getWindowRightOffset() + defDisp.getWindowRightOffset(), |
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451 | conf.getWindowTopOffset() + defDisp.getWindowTopOffset(), |
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452 | conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset() ); |
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453 | } |
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454 | |
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455 | // update POC of display order |
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456 | #if H_MV |
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457 | m_pocLastDisplay[decIdx] = pcPic->getPOC(); |
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458 | #else |
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459 | m_iPOCLastDisplay = pcPic->getPOC(); |
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460 | #endif |
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461 | |
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462 | // erase non-referenced picture in the reference picture list after display |
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463 | if ( !pcPic->getSlice(0)->isReferenced() && pcPic->getReconMark() == true ) |
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464 | { |
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465 | #if !DYN_REF_FREE |
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466 | pcPic->setReconMark(false); |
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467 | |
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468 | // mark it should be extended later |
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469 | pcPic->getPicYuvRec()->setBorderExtension( false ); |
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470 | |
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471 | #else |
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472 | pcPic->destroy(); |
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473 | pcListPic->erase( iterPic ); |
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474 | iterPic = pcListPic->begin(); // to the beginning, non-efficient way, have to be revised! |
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475 | continue; |
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476 | #endif |
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477 | } |
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478 | pcPic->setOutputMark(false); |
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479 | } |
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480 | |
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481 | iterPic++; |
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482 | } |
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483 | } |
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484 | |
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485 | /** \param pcListPic list of pictures to be written to file |
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486 | \todo DYN_REF_FREE should be revised |
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487 | */ |
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488 | #if H_MV |
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489 | Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic, Int decIdx ) |
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490 | #else |
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491 | Void TAppDecTop::xFlushOutput( TComList<TComPic*>* pcListPic ) |
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492 | #endif |
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493 | { |
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494 | if(!pcListPic) |
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495 | { |
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496 | return; |
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497 | } |
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498 | TComList<TComPic*>::iterator iterPic = pcListPic->begin(); |
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499 | |
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500 | iterPic = pcListPic->begin(); |
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501 | |
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502 | while (iterPic != pcListPic->end()) |
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503 | { |
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504 | TComPic* pcPic = *(iterPic); |
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505 | |
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506 | if ( pcPic->getOutputMark() ) |
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507 | { |
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508 | // write to file |
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509 | #if H_MV |
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510 | if ( m_pchReconFiles[decIdx] ) |
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511 | #else |
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512 | if ( m_pchReconFile ) |
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513 | #endif |
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514 | { |
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515 | const Window &conf = pcPic->getConformanceWindow(); |
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516 | const Window &defDisp = m_respectDefDispWindow ? pcPic->getDefDisplayWindow() : Window(); |
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517 | #if H_MV |
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518 | m_tVideoIOYuvReconFile[decIdx]->write( pcPic->getPicYuvRec(), |
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519 | #else |
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520 | m_cTVideoIOYuvReconFile.write( pcPic->getPicYuvRec(), |
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521 | #endif |
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522 | conf.getWindowLeftOffset() + defDisp.getWindowLeftOffset(), |
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523 | conf.getWindowRightOffset() + defDisp.getWindowRightOffset(), |
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524 | conf.getWindowTopOffset() + defDisp.getWindowTopOffset(), |
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525 | conf.getWindowBottomOffset() + defDisp.getWindowBottomOffset() ); |
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526 | } |
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527 | |
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528 | // update POC of display order |
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529 | #if H_MV |
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530 | m_pocLastDisplay[decIdx] = pcPic->getPOC(); |
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531 | #else |
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532 | m_iPOCLastDisplay = pcPic->getPOC(); |
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533 | #endif |
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534 | |
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535 | // erase non-referenced picture in the reference picture list after display |
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536 | if ( !pcPic->getSlice(0)->isReferenced() && pcPic->getReconMark() == true ) |
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537 | { |
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538 | #if !DYN_REF_FREE |
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539 | pcPic->setReconMark(false); |
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540 | |
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541 | // mark it should be extended later |
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542 | pcPic->getPicYuvRec()->setBorderExtension( false ); |
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543 | |
---|
544 | #else |
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545 | pcPic->destroy(); |
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546 | pcListPic->erase( iterPic ); |
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547 | iterPic = pcListPic->begin(); // to the beginning, non-efficient way, have to be revised! |
---|
548 | continue; |
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549 | #endif |
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550 | } |
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551 | pcPic->setOutputMark(false); |
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552 | } |
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553 | #if !H_MV |
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554 | #if !DYN_REF_FREE |
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555 | if(pcPic) |
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556 | { |
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557 | pcPic->destroy(); |
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558 | delete pcPic; |
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559 | pcPic = NULL; |
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560 | } |
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561 | #endif |
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562 | #endif |
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563 | iterPic++; |
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564 | } |
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565 | #if H_MV |
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566 | m_pocLastDisplay[decIdx] = -MAX_INT; |
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567 | #else |
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568 | pcListPic->clear(); |
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569 | m_iPOCLastDisplay = -MAX_INT; |
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570 | #endif |
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571 | } |
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572 | |
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573 | /** \param nalu Input nalu to check whether its LayerId is within targetDecLayerIdSet |
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574 | */ |
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575 | Bool TAppDecTop::isNaluWithinTargetDecLayerIdSet( InputNALUnit* nalu ) |
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576 | { |
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577 | if ( m_targetDecLayerIdSet.size() == 0 ) // By default, the set is empty, meaning all LayerIds are allowed |
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578 | { |
---|
579 | return true; |
---|
580 | } |
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581 | for (std::vector<Int>::iterator it = m_targetDecLayerIdSet.begin(); it != m_targetDecLayerIdSet.end(); it++) |
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582 | { |
---|
583 | #if H_MV |
---|
584 | if ( nalu->m_layerId == (*it) ) |
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585 | #else |
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586 | if ( nalu->m_reservedZero6Bits == (*it) ) |
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587 | #endif |
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588 | { |
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589 | return true; |
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590 | } |
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591 | } |
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592 | return false; |
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593 | } |
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594 | |
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595 | //! \} |
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