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) 2010-2015, ITU/ISO/IEC |
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7 | * All rights reserved. |
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8 | * |
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9 | * Redistribution and use in source and binary forms, with or without |
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10 | * modification, are permitted provided that the following conditions are met: |
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11 | * |
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12 | * * Redistributions of source code must retain the above copyright notice, |
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13 | * this list of conditions and the following disclaimer. |
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14 | * * Redistributions in binary form must reproduce the above copyright notice, |
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15 | * this list of conditions and the following disclaimer in the documentation |
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16 | * and/or other materials provided with the distribution. |
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17 | * * Neither the name of the ITU/ISO/IEC nor the names of its contributors may |
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18 | * be used to endorse or promote products derived from this software without |
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19 | * specific prior written permission. |
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20 | * |
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21 | * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" |
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22 | * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE |
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23 | * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE |
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24 | * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS |
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25 | * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR |
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26 | * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF |
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27 | * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS |
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28 | * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN |
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29 | * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) |
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30 | * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF |
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31 | * THE POSSIBILITY OF SUCH DAMAGE. |
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32 | */ |
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33 | |
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34 | /** |
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35 | \file SEIread.cpp |
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36 | \brief reading functionality for SEI messages |
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37 | */ |
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38 | |
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39 | #include "TLibCommon/CommonDef.h" |
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40 | #include "TLibCommon/TComBitStream.h" |
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41 | #include "TLibCommon/SEI.h" |
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42 | #include "TLibCommon/TComSlice.h" |
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43 | #include "SyntaxElementParser.h" |
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44 | #include "SEIread.h" |
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45 | |
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46 | //! \ingroup TLibDecoder |
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47 | //! \{ |
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48 | |
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49 | #if ENC_DEC_TRACE |
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50 | Void xTraceSEIHeader() |
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51 | { |
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52 | fprintf( g_hTrace, "=========== SEI message ===========\n"); |
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53 | } |
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54 | |
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55 | Void xTraceSEIMessageType(SEI::PayloadType payloadType) |
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56 | { |
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57 | switch (payloadType) |
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58 | { |
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59 | case SEI::DECODED_PICTURE_HASH: |
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60 | fprintf( g_hTrace, "=========== Decoded picture hash SEI message ===========\n"); |
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61 | break; |
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62 | case SEI::USER_DATA_UNREGISTERED: |
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63 | fprintf( g_hTrace, "=========== User Data Unregistered SEI message ===========\n"); |
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64 | break; |
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65 | case SEI::ACTIVE_PARAMETER_SETS: |
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66 | fprintf( g_hTrace, "=========== Active Parameter sets SEI message ===========\n"); |
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67 | break; |
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68 | case SEI::BUFFERING_PERIOD: |
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69 | fprintf( g_hTrace, "=========== Buffering period SEI message ===========\n"); |
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70 | break; |
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71 | case SEI::PICTURE_TIMING: |
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72 | fprintf( g_hTrace, "=========== Picture timing SEI message ===========\n"); |
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73 | break; |
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74 | case SEI::RECOVERY_POINT: |
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75 | fprintf( g_hTrace, "=========== Recovery point SEI message ===========\n"); |
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76 | break; |
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77 | case SEI::FRAME_PACKING: |
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78 | fprintf( g_hTrace, "=========== Frame Packing Arrangement SEI message ===========\n"); |
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79 | break; |
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80 | case SEI::DISPLAY_ORIENTATION: |
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81 | fprintf( g_hTrace, "=========== Display Orientation SEI message ===========\n"); |
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82 | break; |
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83 | case SEI::TEMPORAL_LEVEL0_INDEX: |
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84 | fprintf( g_hTrace, "=========== Temporal Level Zero Index SEI message ===========\n"); |
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85 | break; |
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86 | case SEI::REGION_REFRESH_INFO: |
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87 | fprintf( g_hTrace, "=========== Gradual Decoding Refresh Information SEI message ===========\n"); |
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88 | break; |
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89 | case SEI::DECODING_UNIT_INFO: |
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90 | fprintf( g_hTrace, "=========== Decoding Unit Information SEI message ===========\n"); |
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91 | break; |
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92 | case SEI::TONE_MAPPING_INFO: |
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93 | fprintf( g_hTrace, "===========Tone Mapping Info SEI message ===========\n"); |
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94 | break; |
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95 | case SEI::SOP_DESCRIPTION: |
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96 | fprintf( g_hTrace, "=========== SOP Description SEI message ===========\n"); |
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97 | break; |
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98 | case SEI::SCALABLE_NESTING: |
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99 | fprintf( g_hTrace, "=========== Scalable Nesting SEI message ===========\n"); |
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100 | break; |
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101 | #if H_MV |
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102 | case SEI::SUB_BITSTREAM_PROPERTY: |
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103 | fprintf( g_hTrace, "=========== Sub-bitstream property SEI message ===========\n"); |
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104 | break; |
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105 | #endif |
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106 | default: |
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107 | fprintf( g_hTrace, "=========== Unknown SEI message ===========\n"); |
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108 | break; |
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109 | } |
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110 | } |
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111 | #endif |
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112 | |
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113 | /** |
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114 | * unmarshal a single SEI message from bitstream bs |
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115 | */ |
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116 | void SEIReader::parseSEImessage(TComInputBitstream* bs, SEIMessages& seis, const NalUnitType nalUnitType, TComSPS *sps) |
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117 | { |
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118 | setBitstream(bs); |
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119 | |
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120 | assert(!m_pcBitstream->getNumBitsUntilByteAligned()); |
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121 | do |
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122 | { |
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123 | xReadSEImessage(seis, nalUnitType, sps); |
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124 | /* SEI messages are an integer number of bytes, something has failed |
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125 | * in the parsing if bitstream not byte-aligned */ |
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126 | assert(!m_pcBitstream->getNumBitsUntilByteAligned()); |
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127 | } while (m_pcBitstream->getNumBitsLeft() > 8); |
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128 | |
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129 | UInt rbspTrailingBits; |
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130 | READ_CODE(8, rbspTrailingBits, "rbsp_trailing_bits"); |
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131 | assert(rbspTrailingBits == 0x80); |
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132 | } |
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133 | |
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134 | Void SEIReader::xReadSEImessage(SEIMessages& seis, const NalUnitType nalUnitType, TComSPS *sps) |
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135 | { |
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136 | #if ENC_DEC_TRACE |
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137 | xTraceSEIHeader(); |
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138 | #endif |
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139 | Int payloadType = 0; |
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140 | UInt val = 0; |
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141 | |
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142 | do |
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143 | { |
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144 | READ_CODE (8, val, "payload_type"); |
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145 | payloadType += val; |
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146 | } while (val==0xFF); |
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147 | |
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148 | UInt payloadSize = 0; |
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149 | do |
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150 | { |
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151 | READ_CODE (8, val, "payload_size"); |
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152 | payloadSize += val; |
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153 | } while (val==0xFF); |
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154 | |
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155 | #if ENC_DEC_TRACE |
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156 | xTraceSEIMessageType((SEI::PayloadType)payloadType); |
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157 | #endif |
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158 | |
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159 | /* extract the payload for this single SEI message. |
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160 | * This allows greater safety in erroneous parsing of an SEI message |
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161 | * from affecting subsequent messages. |
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162 | * After parsing the payload, bs needs to be restored as the primary |
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163 | * bitstream. |
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164 | */ |
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165 | TComInputBitstream *bs = getBitstream(); |
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166 | setBitstream(bs->extractSubstream(payloadSize * 8)); |
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167 | |
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168 | SEI *sei = NULL; |
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169 | |
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170 | if(nalUnitType == NAL_UNIT_PREFIX_SEI) |
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171 | { |
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172 | switch (payloadType) |
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173 | { |
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174 | case SEI::USER_DATA_UNREGISTERED: |
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175 | sei = new SEIuserDataUnregistered; |
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176 | xParseSEIuserDataUnregistered((SEIuserDataUnregistered&) *sei, payloadSize); |
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177 | break; |
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178 | case SEI::ACTIVE_PARAMETER_SETS: |
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179 | sei = new SEIActiveParameterSets; |
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180 | xParseSEIActiveParameterSets((SEIActiveParameterSets&) *sei, payloadSize); |
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181 | break; |
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182 | case SEI::DECODING_UNIT_INFO: |
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183 | if (!sps) |
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184 | { |
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185 | printf ("Warning: Found Decoding unit SEI message, but no active SPS is available. Ignoring."); |
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186 | } |
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187 | else |
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188 | { |
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189 | sei = new SEIDecodingUnitInfo; |
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190 | xParseSEIDecodingUnitInfo((SEIDecodingUnitInfo&) *sei, payloadSize, sps); |
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191 | } |
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192 | break; |
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193 | case SEI::BUFFERING_PERIOD: |
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194 | if (!sps) |
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195 | { |
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196 | printf ("Warning: Found Buffering period SEI message, but no active SPS is available. Ignoring."); |
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197 | } |
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198 | else |
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199 | { |
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200 | sei = new SEIBufferingPeriod; |
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201 | xParseSEIBufferingPeriod((SEIBufferingPeriod&) *sei, payloadSize, sps); |
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202 | } |
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203 | break; |
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204 | case SEI::PICTURE_TIMING: |
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205 | if (!sps) |
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206 | { |
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207 | printf ("Warning: Found Picture timing SEI message, but no active SPS is available. Ignoring."); |
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208 | } |
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209 | else |
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210 | { |
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211 | sei = new SEIPictureTiming; |
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212 | xParseSEIPictureTiming((SEIPictureTiming&)*sei, payloadSize, sps); |
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213 | } |
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214 | break; |
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215 | case SEI::RECOVERY_POINT: |
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216 | sei = new SEIRecoveryPoint; |
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217 | xParseSEIRecoveryPoint((SEIRecoveryPoint&) *sei, payloadSize); |
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218 | break; |
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219 | case SEI::FRAME_PACKING: |
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220 | sei = new SEIFramePacking; |
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221 | xParseSEIFramePacking((SEIFramePacking&) *sei, payloadSize); |
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222 | break; |
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223 | case SEI::DISPLAY_ORIENTATION: |
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224 | sei = new SEIDisplayOrientation; |
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225 | xParseSEIDisplayOrientation((SEIDisplayOrientation&) *sei, payloadSize); |
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226 | break; |
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227 | case SEI::TEMPORAL_LEVEL0_INDEX: |
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228 | sei = new SEITemporalLevel0Index; |
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229 | xParseSEITemporalLevel0Index((SEITemporalLevel0Index&) *sei, payloadSize); |
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230 | break; |
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231 | case SEI::REGION_REFRESH_INFO: |
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232 | sei = new SEIGradualDecodingRefreshInfo; |
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233 | xParseSEIGradualDecodingRefreshInfo((SEIGradualDecodingRefreshInfo&) *sei, payloadSize); |
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234 | break; |
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235 | case SEI::TONE_MAPPING_INFO: |
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236 | sei = new SEIToneMappingInfo; |
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237 | xParseSEIToneMappingInfo((SEIToneMappingInfo&) *sei, payloadSize); |
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238 | break; |
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239 | case SEI::SOP_DESCRIPTION: |
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240 | sei = new SEISOPDescription; |
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241 | xParseSEISOPDescription((SEISOPDescription&) *sei, payloadSize); |
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242 | break; |
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243 | case SEI::SCALABLE_NESTING: |
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244 | sei = new SEIScalableNesting; |
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245 | xParseSEIScalableNesting((SEIScalableNesting&) *sei, nalUnitType, payloadSize, sps); |
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246 | break; |
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247 | #if H_MV |
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248 | case SEI::SUB_BITSTREAM_PROPERTY: |
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249 | sei = new SEISubBitstreamProperty; |
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250 | xParseSEISubBitstreamProperty((SEISubBitstreamProperty&) *sei); |
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251 | break; |
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252 | #endif |
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253 | default: |
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254 | for (UInt i = 0; i < payloadSize; i++) |
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255 | { |
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256 | UInt seiByte; |
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257 | READ_CODE (8, seiByte, "unknown prefix SEI payload byte"); |
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258 | } |
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259 | printf ("Unknown prefix SEI message (payloadType = %d) was found!\n", payloadType); |
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260 | } |
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261 | } |
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262 | else |
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263 | { |
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264 | switch (payloadType) |
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265 | { |
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266 | case SEI::USER_DATA_UNREGISTERED: |
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267 | sei = new SEIuserDataUnregistered; |
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268 | xParseSEIuserDataUnregistered((SEIuserDataUnregistered&) *sei, payloadSize); |
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269 | break; |
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270 | case SEI::DECODED_PICTURE_HASH: |
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271 | sei = new SEIDecodedPictureHash; |
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272 | xParseSEIDecodedPictureHash((SEIDecodedPictureHash&) *sei, payloadSize); |
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273 | break; |
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274 | default: |
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275 | for (UInt i = 0; i < payloadSize; i++) |
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276 | { |
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277 | UInt seiByte; |
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278 | READ_CODE (8, seiByte, "unknown suffix SEI payload byte"); |
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279 | } |
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280 | printf ("Unknown suffix SEI message (payloadType = %d) was found!\n", payloadType); |
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281 | } |
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282 | } |
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283 | if (sei != NULL) |
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284 | { |
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285 | seis.push_back(sei); |
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286 | } |
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287 | |
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288 | /* By definition the underlying bitstream terminates in a byte-aligned manner. |
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289 | * 1. Extract all bar the last MIN(bitsremaining,nine) bits as reserved_payload_extension_data |
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290 | * 2. Examine the final 8 bits to determine the payload_bit_equal_to_one marker |
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291 | * 3. Extract the remainingreserved_payload_extension_data bits. |
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292 | * |
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293 | * If there are fewer than 9 bits available, extract them. |
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294 | */ |
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295 | Int payloadBitsRemaining = getBitstream()->getNumBitsLeft(); |
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296 | if (payloadBitsRemaining) /* more_data_in_payload() */ |
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297 | { |
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298 | for (; payloadBitsRemaining > 9; payloadBitsRemaining--) |
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299 | { |
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300 | UInt reservedPayloadExtensionData; |
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301 | READ_CODE (1, reservedPayloadExtensionData, "reserved_payload_extension_data"); |
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302 | } |
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303 | |
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304 | /* 2 */ |
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305 | Int finalBits = getBitstream()->peekBits(payloadBitsRemaining); |
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306 | Int finalPayloadBits = 0; |
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307 | for (Int mask = 0xff; finalBits & (mask >> finalPayloadBits); finalPayloadBits++) |
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308 | { |
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309 | continue; |
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310 | } |
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311 | |
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312 | /* 3 */ |
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313 | for (; payloadBitsRemaining > 9 - finalPayloadBits; payloadBitsRemaining--) |
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314 | { |
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315 | UInt reservedPayloadExtensionData; |
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316 | READ_FLAG (reservedPayloadExtensionData, "reserved_payload_extension_data"); |
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317 | } |
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318 | |
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319 | UInt dummy; |
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320 | READ_FLAG (dummy, "payload_bit_equal_to_one"); payloadBitsRemaining--; |
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321 | while (payloadBitsRemaining) |
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322 | { |
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323 | READ_FLAG (dummy, "payload_bit_equal_to_zero"); payloadBitsRemaining--; |
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324 | } |
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325 | } |
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326 | |
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327 | /* restore primary bitstream for sei_message */ |
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328 | getBitstream()->deleteFifo(); |
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329 | delete getBitstream(); |
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330 | setBitstream(bs); |
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331 | } |
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332 | |
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333 | /** |
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334 | * parse bitstream bs and unpack a user_data_unregistered SEI message |
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335 | * of payloasSize bytes into sei. |
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336 | */ |
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337 | Void SEIReader::xParseSEIuserDataUnregistered(SEIuserDataUnregistered &sei, UInt payloadSize) |
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338 | { |
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339 | assert(payloadSize >= 16); |
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340 | UInt val; |
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341 | |
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342 | for (UInt i = 0; i < 16; i++) |
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343 | { |
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344 | READ_CODE (8, val, "uuid_iso_iec_11578"); |
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345 | sei.uuid_iso_iec_11578[i] = val; |
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346 | } |
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347 | |
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348 | sei.userDataLength = payloadSize - 16; |
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349 | if (!sei.userDataLength) |
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350 | { |
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351 | sei.userData = 0; |
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352 | return; |
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353 | } |
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354 | |
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355 | sei.userData = new UChar[sei.userDataLength]; |
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356 | for (UInt i = 0; i < sei.userDataLength; i++) |
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357 | { |
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358 | READ_CODE (8, val, "user_data" ); |
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359 | sei.userData[i] = val; |
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360 | } |
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361 | } |
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362 | |
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363 | /** |
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364 | * parse bitstream bs and unpack a decoded picture hash SEI message |
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365 | * of payloadSize bytes into sei. |
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366 | */ |
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367 | Void SEIReader::xParseSEIDecodedPictureHash(SEIDecodedPictureHash& sei, UInt /*payloadSize*/) |
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368 | { |
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369 | UInt val; |
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370 | READ_CODE (8, val, "hash_type"); |
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371 | sei.method = static_cast<SEIDecodedPictureHash::Method>(val); |
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372 | for(Int yuvIdx = 0; yuvIdx < 3; yuvIdx++) |
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373 | { |
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374 | if(SEIDecodedPictureHash::MD5 == sei.method) |
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375 | { |
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376 | for (UInt i = 0; i < 16; i++) |
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377 | { |
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378 | READ_CODE(8, val, "picture_md5"); |
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379 | sei.digest[yuvIdx][i] = val; |
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380 | } |
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381 | } |
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382 | else if(SEIDecodedPictureHash::CRC == sei.method) |
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383 | { |
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384 | READ_CODE(16, val, "picture_crc"); |
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385 | sei.digest[yuvIdx][0] = val >> 8 & 0xFF; |
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386 | sei.digest[yuvIdx][1] = val & 0xFF; |
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387 | } |
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388 | else if(SEIDecodedPictureHash::CHECKSUM == sei.method) |
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389 | { |
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390 | READ_CODE(32, val, "picture_checksum"); |
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391 | sei.digest[yuvIdx][0] = (val>>24) & 0xff; |
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392 | sei.digest[yuvIdx][1] = (val>>16) & 0xff; |
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393 | sei.digest[yuvIdx][2] = (val>>8) & 0xff; |
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394 | sei.digest[yuvIdx][3] = val & 0xff; |
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395 | } |
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396 | } |
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397 | } |
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398 | Void SEIReader::xParseSEIActiveParameterSets(SEIActiveParameterSets& sei, UInt /*payloadSize*/) |
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399 | { |
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400 | UInt val; |
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401 | READ_CODE(4, val, "active_video_parameter_set_id"); sei.activeVPSId = val; |
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402 | READ_FLAG( val, "self_contained_cvs_flag"); sei.m_selfContainedCvsFlag = val ? true : false; |
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403 | READ_FLAG( val, "no_parameter_set_update_flag"); sei.m_noParameterSetUpdateFlag = val ? true : false; |
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404 | READ_UVLC( val, "num_sps_ids_minus1"); sei.numSpsIdsMinus1 = val; |
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405 | |
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406 | sei.activeSeqParameterSetId.resize(sei.numSpsIdsMinus1 + 1); |
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407 | for (Int i=0; i < (sei.numSpsIdsMinus1 + 1); i++) |
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408 | { |
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409 | READ_UVLC(val, "active_seq_parameter_set_id"); sei.activeSeqParameterSetId[i] = val; |
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410 | } |
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411 | |
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412 | xParseByteAlign(); |
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413 | } |
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414 | |
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415 | Void SEIReader::xParseSEIDecodingUnitInfo(SEIDecodingUnitInfo& sei, UInt /*payloadSize*/, TComSPS *sps) |
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416 | { |
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417 | UInt val; |
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418 | READ_UVLC(val, "decoding_unit_idx"); |
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419 | sei.m_decodingUnitIdx = val; |
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420 | |
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421 | TComVUI *vui = sps->getVuiParameters(); |
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422 | if(vui->getHrdParameters()->getSubPicCpbParamsInPicTimingSEIFlag()) |
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423 | { |
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424 | READ_CODE( ( vui->getHrdParameters()->getDuCpbRemovalDelayLengthMinus1() + 1 ), val, "du_spt_cpb_removal_delay"); |
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425 | sei.m_duSptCpbRemovalDelay = val; |
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426 | } |
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427 | else |
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428 | { |
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429 | sei.m_duSptCpbRemovalDelay = 0; |
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430 | } |
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431 | READ_FLAG( val, "dpb_output_du_delay_present_flag"); sei.m_dpbOutputDuDelayPresentFlag = val ? true : false; |
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432 | if(sei.m_dpbOutputDuDelayPresentFlag) |
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433 | { |
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434 | READ_CODE(vui->getHrdParameters()->getDpbOutputDelayDuLengthMinus1() + 1, val, "pic_spt_dpb_output_du_delay"); |
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435 | sei.m_picSptDpbOutputDuDelay = val; |
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436 | } |
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437 | xParseByteAlign(); |
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438 | } |
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439 | |
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440 | Void SEIReader::xParseSEIBufferingPeriod(SEIBufferingPeriod& sei, UInt /*payloadSize*/, TComSPS *sps) |
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441 | { |
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442 | Int i, nalOrVcl; |
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443 | UInt code; |
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444 | |
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445 | TComVUI *pVUI = sps->getVuiParameters(); |
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446 | TComHRD *pHRD = pVUI->getHrdParameters(); |
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447 | |
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448 | READ_UVLC( code, "bp_seq_parameter_set_id" ); sei.m_bpSeqParameterSetId = code; |
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449 | if( !pHRD->getSubPicCpbParamsPresentFlag() ) |
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450 | { |
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451 | READ_FLAG( code, "irap_cpb_params_present_flag" ); sei.m_rapCpbParamsPresentFlag = code; |
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452 | } |
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453 | if( sei.m_rapCpbParamsPresentFlag ) |
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454 | { |
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455 | READ_CODE( pHRD->getCpbRemovalDelayLengthMinus1() + 1, code, "cpb_delay_offset" ); sei.m_cpbDelayOffset = code; |
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456 | READ_CODE( pHRD->getDpbOutputDelayLengthMinus1() + 1, code, "dpb_delay_offset" ); sei.m_dpbDelayOffset = code; |
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457 | } |
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458 | //read splicing flag and cpb_removal_delay_delta |
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459 | READ_FLAG( code, "concatenation_flag"); |
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460 | sei.m_concatenationFlag = code; |
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461 | READ_CODE( ( pHRD->getCpbRemovalDelayLengthMinus1() + 1 ), code, "au_cpb_removal_delay_delta_minus1" ); |
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462 | sei.m_auCpbRemovalDelayDelta = code + 1; |
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463 | for( nalOrVcl = 0; nalOrVcl < 2; nalOrVcl ++ ) |
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464 | { |
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465 | if( ( ( nalOrVcl == 0 ) && ( pHRD->getNalHrdParametersPresentFlag() ) ) || |
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466 | ( ( nalOrVcl == 1 ) && ( pHRD->getVclHrdParametersPresentFlag() ) ) ) |
---|
467 | { |
---|
468 | for( i = 0; i < ( pHRD->getCpbCntMinus1( 0 ) + 1 ); i ++ ) |
---|
469 | { |
---|
470 | READ_CODE( ( pHRD->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , code, "initial_cpb_removal_delay" ); |
---|
471 | sei.m_initialCpbRemovalDelay[i][nalOrVcl] = code; |
---|
472 | READ_CODE( ( pHRD->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , code, "initial_cpb_removal_delay_offset" ); |
---|
473 | sei.m_initialCpbRemovalDelayOffset[i][nalOrVcl] = code; |
---|
474 | if( pHRD->getSubPicCpbParamsPresentFlag() || sei.m_rapCpbParamsPresentFlag ) |
---|
475 | { |
---|
476 | READ_CODE( ( pHRD->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , code, "initial_alt_cpb_removal_delay" ); |
---|
477 | sei.m_initialAltCpbRemovalDelay[i][nalOrVcl] = code; |
---|
478 | READ_CODE( ( pHRD->getInitialCpbRemovalDelayLengthMinus1() + 1 ) , code, "initial_alt_cpb_removal_delay_offset" ); |
---|
479 | sei.m_initialAltCpbRemovalDelayOffset[i][nalOrVcl] = code; |
---|
480 | } |
---|
481 | } |
---|
482 | } |
---|
483 | } |
---|
484 | xParseByteAlign(); |
---|
485 | } |
---|
486 | Void SEIReader::xParseSEIPictureTiming(SEIPictureTiming& sei, UInt /*payloadSize*/, TComSPS *sps) |
---|
487 | { |
---|
488 | Int i; |
---|
489 | UInt code; |
---|
490 | |
---|
491 | TComVUI *vui = sps->getVuiParameters(); |
---|
492 | TComHRD *hrd = vui->getHrdParameters(); |
---|
493 | |
---|
494 | if( vui->getFrameFieldInfoPresentFlag() ) |
---|
495 | { |
---|
496 | READ_CODE( 4, code, "pic_struct" ); sei.m_picStruct = code; |
---|
497 | READ_CODE( 2, code, "source_scan_type" ); sei.m_sourceScanType = code; |
---|
498 | READ_FLAG( code, "duplicate_flag" ); sei.m_duplicateFlag = ( code == 1 ? true : false ); |
---|
499 | } |
---|
500 | |
---|
501 | if( hrd->getCpbDpbDelaysPresentFlag()) |
---|
502 | { |
---|
503 | READ_CODE( ( hrd->getCpbRemovalDelayLengthMinus1() + 1 ), code, "au_cpb_removal_delay_minus1" ); |
---|
504 | sei.m_auCpbRemovalDelay = code + 1; |
---|
505 | READ_CODE( ( hrd->getDpbOutputDelayLengthMinus1() + 1 ), code, "pic_dpb_output_delay" ); |
---|
506 | sei.m_picDpbOutputDelay = code; |
---|
507 | |
---|
508 | if(hrd->getSubPicCpbParamsPresentFlag()) |
---|
509 | { |
---|
510 | READ_CODE(hrd->getDpbOutputDelayDuLengthMinus1()+1, code, "pic_dpb_output_du_delay" ); |
---|
511 | sei.m_picDpbOutputDuDelay = code; |
---|
512 | } |
---|
513 | if( hrd->getSubPicCpbParamsPresentFlag() && hrd->getSubPicCpbParamsInPicTimingSEIFlag() ) |
---|
514 | { |
---|
515 | READ_UVLC( code, "num_decoding_units_minus1"); |
---|
516 | sei.m_numDecodingUnitsMinus1 = code; |
---|
517 | READ_FLAG( code, "du_common_cpb_removal_delay_flag" ); |
---|
518 | sei.m_duCommonCpbRemovalDelayFlag = code; |
---|
519 | if( sei.m_duCommonCpbRemovalDelayFlag ) |
---|
520 | { |
---|
521 | READ_CODE( ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), code, "du_common_cpb_removal_delay_minus1" ); |
---|
522 | sei.m_duCommonCpbRemovalDelayMinus1 = code; |
---|
523 | } |
---|
524 | if( sei.m_numNalusInDuMinus1 != NULL ) |
---|
525 | { |
---|
526 | delete sei.m_numNalusInDuMinus1; |
---|
527 | } |
---|
528 | sei.m_numNalusInDuMinus1 = new UInt[ ( sei.m_numDecodingUnitsMinus1 + 1 ) ]; |
---|
529 | if( sei.m_duCpbRemovalDelayMinus1 != NULL ) |
---|
530 | { |
---|
531 | delete sei.m_duCpbRemovalDelayMinus1; |
---|
532 | } |
---|
533 | sei.m_duCpbRemovalDelayMinus1 = new UInt[ ( sei.m_numDecodingUnitsMinus1 + 1 ) ]; |
---|
534 | |
---|
535 | for( i = 0; i <= sei.m_numDecodingUnitsMinus1; i ++ ) |
---|
536 | { |
---|
537 | READ_UVLC( code, "num_nalus_in_du_minus1"); |
---|
538 | sei.m_numNalusInDuMinus1[ i ] = code; |
---|
539 | if( ( !sei.m_duCommonCpbRemovalDelayFlag ) && ( i < sei.m_numDecodingUnitsMinus1 ) ) |
---|
540 | { |
---|
541 | READ_CODE( ( hrd->getDuCpbRemovalDelayLengthMinus1() + 1 ), code, "du_cpb_removal_delay_minus1" ); |
---|
542 | sei.m_duCpbRemovalDelayMinus1[ i ] = code; |
---|
543 | } |
---|
544 | } |
---|
545 | } |
---|
546 | } |
---|
547 | xParseByteAlign(); |
---|
548 | } |
---|
549 | Void SEIReader::xParseSEIRecoveryPoint(SEIRecoveryPoint& sei, UInt /*payloadSize*/) |
---|
550 | { |
---|
551 | Int iCode; |
---|
552 | UInt uiCode; |
---|
553 | READ_SVLC( iCode, "recovery_poc_cnt" ); sei.m_recoveryPocCnt = iCode; |
---|
554 | READ_FLAG( uiCode, "exact_matching_flag" ); sei.m_exactMatchingFlag = uiCode; |
---|
555 | READ_FLAG( uiCode, "broken_link_flag" ); sei.m_brokenLinkFlag = uiCode; |
---|
556 | xParseByteAlign(); |
---|
557 | } |
---|
558 | Void SEIReader::xParseSEIFramePacking(SEIFramePacking& sei, UInt /*payloadSize*/) |
---|
559 | { |
---|
560 | UInt val; |
---|
561 | READ_UVLC( val, "frame_packing_arrangement_id" ); sei.m_arrangementId = val; |
---|
562 | READ_FLAG( val, "frame_packing_arrangement_cancel_flag" ); sei.m_arrangementCancelFlag = val; |
---|
563 | |
---|
564 | if ( !sei.m_arrangementCancelFlag ) |
---|
565 | { |
---|
566 | READ_CODE( 7, val, "frame_packing_arrangement_type" ); sei.m_arrangementType = val; |
---|
567 | assert((sei.m_arrangementType > 2) && (sei.m_arrangementType < 6) ); |
---|
568 | READ_FLAG( val, "quincunx_sampling_flag" ); sei.m_quincunxSamplingFlag = val; |
---|
569 | |
---|
570 | READ_CODE( 6, val, "content_interpretation_type" ); sei.m_contentInterpretationType = val; |
---|
571 | READ_FLAG( val, "spatial_flipping_flag" ); sei.m_spatialFlippingFlag = val; |
---|
572 | READ_FLAG( val, "frame0_flipped_flag" ); sei.m_frame0FlippedFlag = val; |
---|
573 | READ_FLAG( val, "field_views_flag" ); sei.m_fieldViewsFlag = val; |
---|
574 | READ_FLAG( val, "current_frame_is_frame0_flag" ); sei.m_currentFrameIsFrame0Flag = val; |
---|
575 | READ_FLAG( val, "frame0_self_contained_flag" ); sei.m_frame0SelfContainedFlag = val; |
---|
576 | READ_FLAG( val, "frame1_self_contained_flag" ); sei.m_frame1SelfContainedFlag = val; |
---|
577 | |
---|
578 | if ( sei.m_quincunxSamplingFlag == 0 && sei.m_arrangementType != 5) |
---|
579 | { |
---|
580 | READ_CODE( 4, val, "frame0_grid_position_x" ); sei.m_frame0GridPositionX = val; |
---|
581 | READ_CODE( 4, val, "frame0_grid_position_y" ); sei.m_frame0GridPositionY = val; |
---|
582 | READ_CODE( 4, val, "frame1_grid_position_x" ); sei.m_frame1GridPositionX = val; |
---|
583 | READ_CODE( 4, val, "frame1_grid_position_y" ); sei.m_frame1GridPositionY = val; |
---|
584 | } |
---|
585 | |
---|
586 | READ_CODE( 8, val, "frame_packing_arrangement_reserved_byte" ); sei.m_arrangementReservedByte = val; |
---|
587 | READ_FLAG( val, "frame_packing_arrangement_persistence_flag" ); sei.m_arrangementPersistenceFlag = val ? true : false; |
---|
588 | } |
---|
589 | READ_FLAG( val, "upsampled_aspect_ratio" ); sei.m_upsampledAspectRatio = val; |
---|
590 | |
---|
591 | xParseByteAlign(); |
---|
592 | } |
---|
593 | |
---|
594 | Void SEIReader::xParseSEIDisplayOrientation(SEIDisplayOrientation& sei, UInt /*payloadSize*/) |
---|
595 | { |
---|
596 | UInt val; |
---|
597 | READ_FLAG( val, "display_orientation_cancel_flag" ); sei.cancelFlag = val; |
---|
598 | if( !sei.cancelFlag ) |
---|
599 | { |
---|
600 | READ_FLAG( val, "hor_flip" ); sei.horFlip = val; |
---|
601 | READ_FLAG( val, "ver_flip" ); sei.verFlip = val; |
---|
602 | READ_CODE( 16, val, "anticlockwise_rotation" ); sei.anticlockwiseRotation = val; |
---|
603 | READ_FLAG( val, "display_orientation_persistence_flag" ); sei.persistenceFlag = val; |
---|
604 | } |
---|
605 | xParseByteAlign(); |
---|
606 | } |
---|
607 | |
---|
608 | Void SEIReader::xParseSEITemporalLevel0Index(SEITemporalLevel0Index& sei, UInt /*payloadSize*/) |
---|
609 | { |
---|
610 | UInt val; |
---|
611 | READ_CODE ( 8, val, "tl0_idx" ); sei.tl0Idx = val; |
---|
612 | READ_CODE ( 8, val, "rap_idx" ); sei.rapIdx = val; |
---|
613 | xParseByteAlign(); |
---|
614 | } |
---|
615 | |
---|
616 | Void SEIReader::xParseSEIGradualDecodingRefreshInfo(SEIGradualDecodingRefreshInfo& sei, UInt /*payloadSize*/) |
---|
617 | { |
---|
618 | UInt val; |
---|
619 | READ_FLAG( val, "gdr_foreground_flag" ); sei.m_gdrForegroundFlag = val ? 1 : 0; |
---|
620 | xParseByteAlign(); |
---|
621 | } |
---|
622 | |
---|
623 | Void SEIReader::xParseSEIToneMappingInfo(SEIToneMappingInfo& sei, UInt /*payloadSize*/) |
---|
624 | { |
---|
625 | Int i; |
---|
626 | UInt val; |
---|
627 | READ_UVLC( val, "tone_map_id" ); sei.m_toneMapId = val; |
---|
628 | READ_FLAG( val, "tone_map_cancel_flag" ); sei.m_toneMapCancelFlag = val; |
---|
629 | |
---|
630 | if ( !sei.m_toneMapCancelFlag ) |
---|
631 | { |
---|
632 | READ_FLAG( val, "tone_map_persistence_flag" ); sei.m_toneMapPersistenceFlag = val; |
---|
633 | READ_CODE( 8, val, "coded_data_bit_depth" ); sei.m_codedDataBitDepth = val; |
---|
634 | READ_CODE( 8, val, "target_bit_depth" ); sei.m_targetBitDepth = val; |
---|
635 | READ_UVLC( val, "model_id" ); sei.m_modelId = val; |
---|
636 | switch(sei.m_modelId) |
---|
637 | { |
---|
638 | case 0: |
---|
639 | { |
---|
640 | READ_CODE( 32, val, "min_value" ); sei.m_minValue = val; |
---|
641 | READ_CODE( 32, val, "max_value" ); sei.m_maxValue = val; |
---|
642 | break; |
---|
643 | } |
---|
644 | case 1: |
---|
645 | { |
---|
646 | READ_CODE( 32, val, "sigmoid_midpoint" ); sei.m_sigmoidMidpoint = val; |
---|
647 | READ_CODE( 32, val, "sigmoid_width" ); sei.m_sigmoidWidth = val; |
---|
648 | break; |
---|
649 | } |
---|
650 | case 2: |
---|
651 | { |
---|
652 | UInt num = 1u << sei.m_targetBitDepth; |
---|
653 | sei.m_startOfCodedInterval.resize(num+1); |
---|
654 | for(i = 0; i < num; i++) |
---|
655 | { |
---|
656 | READ_CODE( ((( sei.m_codedDataBitDepth + 7 ) >> 3 ) << 3), val, "start_of_coded_interval" ); |
---|
657 | sei.m_startOfCodedInterval[i] = val; |
---|
658 | } |
---|
659 | sei.m_startOfCodedInterval[num] = 1u << sei.m_codedDataBitDepth; |
---|
660 | break; |
---|
661 | } |
---|
662 | case 3: |
---|
663 | { |
---|
664 | READ_CODE( 16, val, "num_pivots" ); sei.m_numPivots = val; |
---|
665 | sei.m_codedPivotValue.resize(sei.m_numPivots); |
---|
666 | sei.m_targetPivotValue.resize(sei.m_numPivots); |
---|
667 | for(i = 0; i < sei.m_numPivots; i++ ) |
---|
668 | { |
---|
669 | READ_CODE( ((( sei.m_codedDataBitDepth + 7 ) >> 3 ) << 3), val, "coded_pivot_value" ); |
---|
670 | sei.m_codedPivotValue[i] = val; |
---|
671 | READ_CODE( ((( sei.m_targetBitDepth + 7 ) >> 3 ) << 3), val, "target_pivot_value" ); |
---|
672 | sei.m_targetPivotValue[i] = val; |
---|
673 | } |
---|
674 | break; |
---|
675 | } |
---|
676 | case 4: |
---|
677 | { |
---|
678 | READ_CODE( 8, val, "camera_iso_speed_idc" ); sei.m_cameraIsoSpeedIdc = val; |
---|
679 | if( sei.m_cameraIsoSpeedIdc == 255) //Extended_ISO |
---|
680 | { |
---|
681 | READ_CODE( 32, val, "camera_iso_speed_value" ); sei.m_cameraIsoSpeedValue = val; |
---|
682 | } |
---|
683 | READ_CODE( 8, val, "exposure_index_idc" ); sei.m_exposureIndexIdc = val; |
---|
684 | if( sei.m_exposureIndexIdc == 255) //Extended_ISO |
---|
685 | { |
---|
686 | READ_CODE( 32, val, "exposure_index_value" ); sei.m_exposureIndexValue = val; |
---|
687 | } |
---|
688 | READ_FLAG( val, "exposure_compensation_value_sign_flag" ); sei.m_exposureCompensationValueSignFlag = val; |
---|
689 | READ_CODE( 16, val, "exposure_compensation_value_numerator" ); sei.m_exposureCompensationValueNumerator = val; |
---|
690 | READ_CODE( 16, val, "exposure_compensation_value_denom_idc" ); sei.m_exposureCompensationValueDenomIdc = val; |
---|
691 | READ_CODE( 32, val, "ref_screen_luminance_white" ); sei.m_refScreenLuminanceWhite = val; |
---|
692 | READ_CODE( 32, val, "extended_range_white_level" ); sei.m_extendedRangeWhiteLevel = val; |
---|
693 | READ_CODE( 16, val, "nominal_black_level_luma_code_value" ); sei.m_nominalBlackLevelLumaCodeValue = val; |
---|
694 | READ_CODE( 16, val, "nominal_white_level_luma_code_value" ); sei.m_nominalWhiteLevelLumaCodeValue= val; |
---|
695 | READ_CODE( 16, val, "extended_white_level_luma_code_value" ); sei.m_extendedWhiteLevelLumaCodeValue = val; |
---|
696 | break; |
---|
697 | } |
---|
698 | default: |
---|
699 | { |
---|
700 | assert(!"Undefined SEIToneMapModelId"); |
---|
701 | break; |
---|
702 | } |
---|
703 | }//switch model id |
---|
704 | }// if(!sei.m_toneMapCancelFlag) |
---|
705 | |
---|
706 | xParseByteAlign(); |
---|
707 | } |
---|
708 | |
---|
709 | Void SEIReader::xParseSEISOPDescription(SEISOPDescription &sei, UInt payloadSize) |
---|
710 | { |
---|
711 | Int iCode; |
---|
712 | UInt uiCode; |
---|
713 | |
---|
714 | READ_UVLC( uiCode, "sop_seq_parameter_set_id" ); sei.m_sopSeqParameterSetId = uiCode; |
---|
715 | READ_UVLC( uiCode, "num_pics_in_sop_minus1" ); sei.m_numPicsInSopMinus1 = uiCode; |
---|
716 | for (UInt i = 0; i <= sei.m_numPicsInSopMinus1; i++) |
---|
717 | { |
---|
718 | READ_CODE( 6, uiCode, "sop_desc_vcl_nalu_type" ); sei.m_sopDescVclNaluType[i] = uiCode; |
---|
719 | READ_CODE( 3, sei.m_sopDescTemporalId[i], "sop_desc_temporal_id" ); sei.m_sopDescTemporalId[i] = uiCode; |
---|
720 | if (sei.m_sopDescVclNaluType[i] != NAL_UNIT_CODED_SLICE_IDR_W_RADL && sei.m_sopDescVclNaluType[i] != NAL_UNIT_CODED_SLICE_IDR_N_LP) |
---|
721 | { |
---|
722 | READ_UVLC( sei.m_sopDescStRpsIdx[i], "sop_desc_st_rps_idx" ); sei.m_sopDescStRpsIdx[i] = uiCode; |
---|
723 | } |
---|
724 | if (i > 0) |
---|
725 | { |
---|
726 | READ_SVLC( iCode, "sop_desc_poc_delta" ); sei.m_sopDescPocDelta[i] = iCode; |
---|
727 | } |
---|
728 | } |
---|
729 | |
---|
730 | xParseByteAlign(); |
---|
731 | } |
---|
732 | |
---|
733 | Void SEIReader::xParseSEIScalableNesting(SEIScalableNesting& sei, const NalUnitType nalUnitType, UInt payloadSize, TComSPS *sps) |
---|
734 | { |
---|
735 | UInt uiCode; |
---|
736 | SEIMessages seis; |
---|
737 | |
---|
738 | READ_FLAG( uiCode, "bitstream_subset_flag" ); sei.m_bitStreamSubsetFlag = uiCode; |
---|
739 | READ_FLAG( uiCode, "nesting_op_flag" ); sei.m_nestingOpFlag = uiCode; |
---|
740 | if (sei.m_nestingOpFlag) |
---|
741 | { |
---|
742 | READ_FLAG( uiCode, "default_op_flag" ); sei.m_defaultOpFlag = uiCode; |
---|
743 | READ_UVLC( uiCode, "nesting_num_ops_minus1" ); sei.m_nestingNumOpsMinus1 = uiCode; |
---|
744 | for (UInt i = sei.m_defaultOpFlag; i <= sei.m_nestingNumOpsMinus1; i++) |
---|
745 | { |
---|
746 | READ_CODE( 3, uiCode, "nesting_max_temporal_id_plus1" ); sei.m_nestingMaxTemporalIdPlus1[i] = uiCode; |
---|
747 | READ_UVLC( uiCode, "nesting_op_idx" ); sei.m_nestingOpIdx[i] = uiCode; |
---|
748 | } |
---|
749 | } |
---|
750 | else |
---|
751 | { |
---|
752 | READ_FLAG( uiCode, "all_layers_flag" ); sei.m_allLayersFlag = uiCode; |
---|
753 | if (!sei.m_allLayersFlag) |
---|
754 | { |
---|
755 | READ_CODE( 3, uiCode, "nesting_no_op_max_temporal_id_plus1" ); sei.m_nestingNoOpMaxTemporalIdPlus1 = uiCode; |
---|
756 | READ_UVLC( uiCode, "nesting_num_layers_minus1" ); sei.m_nestingNumLayersMinus1 = uiCode; |
---|
757 | for (UInt i = 0; i <= sei.m_nestingNumLayersMinus1; i++) |
---|
758 | { |
---|
759 | READ_CODE( 6, uiCode, "nesting_layer_id" ); sei.m_nestingLayerId[i] = uiCode; |
---|
760 | } |
---|
761 | } |
---|
762 | } |
---|
763 | |
---|
764 | // byte alignment |
---|
765 | while ( m_pcBitstream->getNumBitsRead() % 8 != 0 ) |
---|
766 | { |
---|
767 | UInt code; |
---|
768 | READ_FLAG( code, "nesting_zero_bit" ); |
---|
769 | } |
---|
770 | |
---|
771 | sei.m_callerOwnsSEIs = false; |
---|
772 | |
---|
773 | // read nested SEI messages |
---|
774 | do { |
---|
775 | xReadSEImessage(sei.m_nestedSEIs, nalUnitType, sps); |
---|
776 | } while (m_pcBitstream->getNumBitsLeft() > 8); |
---|
777 | |
---|
778 | } |
---|
779 | #if H_MV |
---|
780 | Void SEIReader::xParseSEISubBitstreamProperty(SEISubBitstreamProperty &sei) |
---|
781 | { |
---|
782 | UInt uiCode; |
---|
783 | READ_CODE( 4, uiCode, "active_vps_id" ); sei.m_activeVpsId = uiCode; |
---|
784 | READ_UVLC( uiCode, "num_additional_sub_streams_minus1" ); sei.m_numAdditionalSubStreams = uiCode + 1; |
---|
785 | |
---|
786 | xResizeSubBitstreamPropertySeiArrays(sei); |
---|
787 | for( Int i = 0; i < sei.m_numAdditionalSubStreams; i++ ) |
---|
788 | { |
---|
789 | READ_CODE( 2, uiCode, "sub_bitstream_mode[i]" ); sei.m_subBitstreamMode[i] = uiCode; |
---|
790 | READ_UVLC( uiCode, "output_layer_set_idx_to_vps[i]" ); sei.m_outputLayerSetIdxToVps[i] = uiCode; |
---|
791 | READ_CODE( 3, uiCode, "highest_sub_layer_id[i]" ); sei.m_highestSublayerId[i] = uiCode; |
---|
792 | READ_CODE( 16, uiCode, "avg_bit_rate[i]" ); sei.m_avgBitRate[i] = uiCode; |
---|
793 | READ_CODE( 16, uiCode, "max_bit_rate[i]" ); sei.m_maxBitRate[i] = uiCode; |
---|
794 | } |
---|
795 | xParseByteAlign(); |
---|
796 | } |
---|
797 | Void SEIReader::xResizeSubBitstreamPropertySeiArrays(SEISubBitstreamProperty &sei) |
---|
798 | { |
---|
799 | sei.m_subBitstreamMode.resize( sei.m_numAdditionalSubStreams ); |
---|
800 | sei.m_outputLayerSetIdxToVps.resize( sei.m_numAdditionalSubStreams ); |
---|
801 | sei.m_highestSublayerId.resize( sei.m_numAdditionalSubStreams ); |
---|
802 | sei.m_avgBitRate.resize( sei.m_numAdditionalSubStreams ); |
---|
803 | sei.m_maxBitRate.resize( sei.m_numAdditionalSubStreams ); |
---|
804 | } |
---|
805 | #endif |
---|
806 | |
---|
807 | Void SEIReader::xParseByteAlign() |
---|
808 | { |
---|
809 | UInt code; |
---|
810 | if( m_pcBitstream->getNumBitsRead() % 8 != 0 ) |
---|
811 | { |
---|
812 | READ_FLAG( code, "bit_equal_to_one" ); assert( code == 1 ); |
---|
813 | } |
---|
814 | while( m_pcBitstream->getNumBitsRead() % 8 != 0 ) |
---|
815 | { |
---|
816 | READ_FLAG( code, "bit_equal_to_zero" ); assert( code == 0 ); |
---|
817 | } |
---|
818 | } |
---|
819 | //! \} |
---|