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) 2010-2011, 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 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 | #include "TEncFormattedStringParser.h" |
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36 | #include <sstream> |
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37 | #include <algorithm> |
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38 | |
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39 | const std::string TEncFormattedStringParser::sm_cSetOfTypes ("AIPBNipbn"); |
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40 | const std::string TEncFormattedStringParser::sm_cSetOfDigits ("0123456789"); |
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41 | const std::string TEncFormattedStringParser::sm_cSetOfPartStart ("AIPBNipbn*"); |
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42 | |
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43 | ErrVal TEncFormattedStringParser::extractFrameType( const std::string &rcString, |
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44 | SliceType& reSliceType, |
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45 | bool &rbStoreForRef, |
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46 | bool &rbIsIDR, |
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47 | std::string::size_type &ruiStartPos ) |
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48 | { |
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49 | ROT( rcString.length() <= ruiStartPos ); |
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50 | |
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51 | rbIsIDR = rcString[ruiStartPos] == 'A'; |
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52 | rbStoreForRef = isupper( rcString[ruiStartPos] ) != 0; |
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53 | |
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54 | const char cType = rcString[ruiStartPos++]; |
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55 | switch( toupper( cType ) ) |
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56 | { |
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57 | case 'A': |
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58 | case 'I': |
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59 | reSliceType = I_SLICE ; |
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60 | break; |
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61 | case 'P': |
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62 | reSliceType = P_SLICE ; |
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63 | break; |
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64 | case 'B': |
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65 | reSliceType = B_SLICE ; |
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66 | break; |
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67 | default: |
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68 | ROT( 1 ); |
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69 | } |
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70 | |
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71 | return Err::m_nOK; |
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72 | } |
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73 | |
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74 | |
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75 | |
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76 | |
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77 | ErrVal TEncFormattedStringParser::extractFrameIncrement( const std::string &rcString, |
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78 | UInt &ruiIncrement, |
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79 | std::string::size_type &ruiStartPos ) |
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80 | { |
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81 | RNOK( xExtractUInt( rcString, ruiIncrement, ruiStartPos ) ); |
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82 | return Err::m_nOK; |
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83 | } |
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84 | |
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85 | ErrVal TEncFormattedStringParser::extractFrameLayer( const std::string &rcString, |
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86 | UInt &ruiLayer, |
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87 | std::string::size_type &ruiStartPos ) |
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88 | { |
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89 | ruiLayer = 0; |
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90 | ROTRS( std::string::npos == ruiStartPos, Err::m_nOK ); |
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91 | ROTRS( rcString.length() <= ruiStartPos, Err::m_nOK ); |
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92 | ROTRS( rcString[ruiStartPos] != 'L', Err::m_nOK ); |
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93 | ruiStartPos++; |
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94 | RNOK( xExtractUInt( rcString, ruiLayer, ruiStartPos ) ); |
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95 | return Err::m_nOK; |
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96 | } |
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97 | |
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98 | ErrVal TEncFormattedStringParser::xExtractRelRefPocAndRefViewIdx( const std::string &rcString, |
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99 | std::vector<int> &raiAllowedRelativeRefPocs, |
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100 | std::vector<int> &raiAllowedReferenceViewIdx, |
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101 | std::string::size_type &ruiStartPos ) |
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102 | { |
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103 | if( rcString[ruiStartPos] == 'v' || rcString[ruiStartPos] == 'V' ) |
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104 | { |
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105 | ruiStartPos++; |
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106 | int iRefViewIdx = 0; |
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107 | RNOK( xExtractInt( rcString, iRefViewIdx, ruiStartPos ) ); |
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108 | assert( iRefViewIdx >= 0 ); |
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109 | ROF( raiAllowedReferenceViewIdx.end() == std::find( raiAllowedReferenceViewIdx.begin(), raiAllowedReferenceViewIdx.end(), iRefViewIdx ) ); |
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110 | raiAllowedReferenceViewIdx.push_back( iRefViewIdx ); |
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111 | raiAllowedRelativeRefPocs.push_back( 0 ); |
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112 | } |
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113 | else |
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114 | { |
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115 | int iRelRefPoc = 0; |
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116 | RNOK( xExtractInt( rcString, iRelRefPoc, ruiStartPos ) ); |
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117 | ROF( raiAllowedRelativeRefPocs.end() == std::find( raiAllowedRelativeRefPocs.begin(), raiAllowedRelativeRefPocs.end(), iRelRefPoc ) ); |
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118 | raiAllowedRelativeRefPocs.push_back( iRelRefPoc ); |
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119 | raiAllowedReferenceViewIdx.push_back( -1 ); |
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120 | } |
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121 | return Err::m_nOK; |
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122 | } |
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123 | |
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124 | ErrVal TEncFormattedStringParser::extractAllowedRelativeRefPocs( const std::string &rcString, |
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125 | std::vector<int> &raiAllowedRelativeRefPocs, |
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126 | std::vector<int> &raiAllowedReferenceViewIdx, |
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127 | std::string::size_type &ruiStartPos ) |
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128 | { |
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129 | ROF( raiAllowedRelativeRefPocs.empty() ); |
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130 | ROTRS( std::string::npos == ruiStartPos, Err::m_nOK ); |
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131 | ROTRS( rcString.length() <= ruiStartPos, Err::m_nOK ); |
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132 | RNOK( xEatChar( rcString, '(', ruiStartPos ) ); |
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133 | |
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134 | do |
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135 | { |
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136 | RNOK( xExtractRelRefPocAndRefViewIdx( rcString, raiAllowedRelativeRefPocs, raiAllowedReferenceViewIdx, ruiStartPos ) ); |
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137 | } |
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138 | while( xEatChar( rcString, ',', ruiStartPos ) == Err::m_nOK ); |
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139 | RNOK( xEatChar( rcString, ')', ruiStartPos ) ); |
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140 | |
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141 | return Err::m_nOK; |
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142 | } |
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143 | |
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144 | ErrVal TEncFormattedStringParser::extractAllowedRelativeRefPocs( const std::string &rcString, |
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145 | std::vector<int> &raiAllowedRelativeRefPocsL0, |
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146 | std::vector<int> &raiAllowedRelativeRefPocsL1, |
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147 | std::vector<int> &raiAllowedReferenceViewIdxL0, |
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148 | std::vector<int> &raiAllowedReferenceViewIdxL1, |
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149 | std::string::size_type &ruiStartPos ) |
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150 | { |
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151 | ROF( raiAllowedRelativeRefPocsL0.empty() ); |
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152 | ROF( raiAllowedRelativeRefPocsL1.empty() ); |
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153 | |
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154 | ROTRS( std::string::npos == ruiStartPos, Err::m_nOK ); |
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155 | ROTRS( rcString.length() <= ruiStartPos, Err::m_nOK ); |
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156 | |
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157 | RNOK( xEatChar( rcString, '(', ruiStartPos ) ); |
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158 | do |
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159 | { |
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160 | RNOK( xExtractRelRefPocAndRefViewIdx( rcString, raiAllowedRelativeRefPocsL0, raiAllowedReferenceViewIdxL0, ruiStartPos ) ); |
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161 | } |
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162 | while( xEatChar( rcString, ',', ruiStartPos ) == Err::m_nOK ); |
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163 | RNOK( xEatChar( rcString, ';', ruiStartPos ) ); |
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164 | do |
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165 | { |
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166 | RNOK( xExtractRelRefPocAndRefViewIdx( rcString, raiAllowedRelativeRefPocsL1, raiAllowedReferenceViewIdxL1, ruiStartPos ) ); |
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167 | } |
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168 | while( xEatChar( rcString, ',', ruiStartPos ) == Err::m_nOK ); |
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169 | RNOK( xEatChar( rcString, ')', ruiStartPos ) ); |
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170 | return Err::m_nOK; |
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171 | } |
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172 | |
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173 | |
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174 | |
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175 | |
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176 | |
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177 | |
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178 | ErrVal TEncFormattedStringParser::xEatChar( const std::string &rcString, |
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179 | char cChar, |
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180 | std::string::size_type &ruiStartPos ) |
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181 | { |
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182 | ROTS( std::string::npos == ruiStartPos ); |
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183 | ROTS( rcString.length() <= ruiStartPos ); |
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184 | ROFS( rcString[ruiStartPos] == cChar ); |
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185 | ruiStartPos++; |
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186 | return Err::m_nOK; |
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187 | } |
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188 | |
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189 | ErrVal TEncFormattedStringParser::xExtractUInt( const std::string &rcString, |
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190 | UInt &ruiVal, |
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191 | std::string::size_type &ruiStartPos ) |
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192 | { |
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193 | ROT( std::string::npos == ruiStartPos ); |
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194 | ROT( rcString.length() <= ruiStartPos ); |
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195 | const std::string::size_type uiPos = rcString.find_first_not_of( sm_cSetOfDigits, ruiStartPos + ( rcString[ruiStartPos] == '+' ? 1 : 0 ) ); |
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196 | ROT( ruiStartPos == uiPos ); |
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197 | std::stringstream( rcString.substr( ruiStartPos, std::string::npos == uiPos ? std::string::npos : uiPos - ruiStartPos ) ) >> ruiVal; |
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198 | ruiStartPos = uiPos; |
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199 | return Err::m_nOK; |
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200 | } |
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201 | |
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202 | ErrVal TEncFormattedStringParser::xExtractInt( const std::string &rcString, |
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203 | int &riVal, |
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204 | std::string::size_type &ruiStartPos ) |
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205 | { |
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206 | ROT( std::string::npos == ruiStartPos ); |
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207 | ROT( rcString.length() <= ruiStartPos ); |
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208 | const std::string::size_type uiPos = rcString.find_first_not_of( sm_cSetOfDigits, ruiStartPos + ( rcString[ruiStartPos] == '+' || rcString[ruiStartPos] == '-' ? 1 : 0 ) ); |
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209 | ROT( ruiStartPos == uiPos ); |
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210 | std::stringstream( rcString.substr( ruiStartPos, std::string::npos == uiPos ? std::string::npos : uiPos - ruiStartPos ) ) >> riVal; |
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211 | ruiStartPos = uiPos; |
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212 | return Err::m_nOK; |
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213 | } |
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214 | |
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215 | |
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216 | ErrVal |
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217 | TEncFormattedStringParser::separatString ( const std::string& rcString, |
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218 | std::string& rcFDString, |
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219 | std::string& rcMmcoString, |
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220 | std::string& rcRplrStringL0, |
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221 | std::string& rcRplrStringL1) |
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222 | { |
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223 | size_t uiMPos = rcString.find_first_of( "M" ); |
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224 | size_t uiR1Pos = rcString.find_first_of( "R" ); |
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225 | size_t uiR2Pos = rcString.find_last_of ( "R" ); |
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226 | |
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227 | size_t uiSize = rcString.size(); |
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228 | |
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229 | if( std::string::npos == uiMPos ) |
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230 | { |
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231 | rcMmcoString = ""; |
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232 | if( std::string::npos == uiR1Pos ) |
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233 | { |
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234 | rcFDString = rcString; |
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235 | rcRplrStringL0 = ""; |
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236 | rcRplrStringL1 = ""; |
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237 | } |
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238 | else |
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239 | { |
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240 | rcFDString = rcString.substr( 0, uiR1Pos ); |
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241 | if( uiR1Pos == uiR2Pos ) |
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242 | { |
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243 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiSize - uiR1Pos ); |
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244 | rcRplrStringL1 = ""; |
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245 | } |
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246 | else |
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247 | { |
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248 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiR2Pos - uiR1Pos ); |
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249 | rcRplrStringL1 = rcString.substr( uiR2Pos, uiSize - uiR2Pos ); |
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250 | } |
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251 | } |
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252 | } |
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253 | else |
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254 | { |
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255 | if( std::string::npos == uiR1Pos ) |
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256 | { |
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257 | rcFDString = rcString.substr( 0, uiMPos ); |
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258 | rcMmcoString = rcString.substr( uiMPos, uiSize - uiMPos ); |
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259 | rcRplrStringL0 = ""; |
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260 | rcRplrStringL1 = ""; |
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261 | } |
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262 | else |
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263 | { |
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264 | if( uiMPos < uiR1Pos ) |
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265 | { |
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266 | rcFDString = rcString.substr( 0, uiMPos ); |
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267 | rcMmcoString = rcString.substr( uiMPos, uiR1Pos - uiMPos ); |
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268 | if( uiR1Pos == uiR2Pos ) |
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269 | { |
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270 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiSize - uiR1Pos ); |
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271 | rcRplrStringL1 = ""; |
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272 | } |
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273 | else |
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274 | { |
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275 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiR2Pos - uiR1Pos ); |
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276 | rcRplrStringL1 = rcString.substr( uiR2Pos, uiSize - uiR2Pos ); |
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277 | } |
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278 | } |
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279 | else |
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280 | { |
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281 | rcFDString = rcString.substr( 0, uiR1Pos ); |
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282 | |
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283 | if( uiR1Pos == uiR2Pos ) |
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284 | { |
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285 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiMPos - uiR1Pos ); |
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286 | rcRplrStringL1 = ""; |
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287 | rcMmcoString = rcString.substr( uiMPos, uiSize - uiMPos ); |
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288 | } |
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289 | else |
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290 | { |
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291 | if( uiMPos < uiR2Pos ) |
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292 | { |
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293 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiMPos - uiR1Pos ); |
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294 | rcMmcoString = rcString.substr( uiMPos, uiR2Pos - uiMPos ); |
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295 | rcRplrStringL1 = rcString.substr( uiR2Pos, uiSize - uiR2Pos ); |
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296 | |
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297 | } |
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298 | else |
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299 | { |
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300 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiR2Pos - uiR1Pos ); |
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301 | rcRplrStringL1 = rcString.substr( uiR2Pos, uiMPos - uiR2Pos ); |
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302 | rcMmcoString = rcString.substr( uiMPos, uiSize - uiMPos ); |
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303 | } |
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304 | } |
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305 | } |
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306 | } |
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307 | } |
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308 | |
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309 | if( rcRplrStringL0.size() == 1 ) |
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310 | { |
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311 | rcRplrStringL0 = ""; |
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312 | } |
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313 | |
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314 | if( rcRplrStringL1.size() == 1 ) |
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315 | { |
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316 | rcRplrStringL1 = ""; |
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317 | } |
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318 | |
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319 | return Err::m_nOK; |
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320 | } |
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321 | |
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322 | bool |
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323 | TEncFormattedStringParser::isFrameSequencePart( const std::string& rcString ) |
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324 | { |
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325 | return ( rcString.find( '*', 1 ) == std::string::npos ); |
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326 | } |
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327 | |
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328 | |
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329 | ErrVal |
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330 | TEncFormattedStringParser::extractRepetitions( const std::string& rcString, |
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331 | std::string& rcNoRepString, |
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332 | UInt& ruiNumberOfRepetitions ) |
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333 | { |
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334 | ROT( rcString.empty() ); |
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335 | if( rcString[0] != '*' ) |
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336 | { |
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337 | ruiNumberOfRepetitions = 1; |
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338 | rcNoRepString = rcString; |
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339 | } |
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340 | else |
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341 | { |
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342 | size_t uiLastPos = rcString.length () - 1; |
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343 | size_t uiOpenPos = rcString.find ( '{' ); |
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344 | size_t uiClosePos = rcString.rfind ( '}' ); |
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345 | |
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346 | ROTS( uiOpenPos == std::string::npos ); |
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347 | ROFS( uiClosePos == uiLastPos ); |
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348 | |
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349 | rcNoRepString = rcString.substr( uiOpenPos+1, uiClosePos-uiOpenPos-1 ); //GT: abc if rcString = *n100{abc} |
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350 | std::string cNStr = rcString.substr( 1, uiOpenPos - 1 ); //GT n100 if rcString = *n100{abc} |
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351 | ROT( cNStr.empty() ); |
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352 | |
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353 | if( uiOpenPos==2 && cNStr[0]=='n' ) |
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354 | { |
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355 | // ruiNumberOfRepetitions = TypeLimits<UInt>::m_iMax; // reserved value representing "infinity" |
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356 | ruiNumberOfRepetitions = MAX_UINT; // reserved value representing "infinity" |
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357 | } |
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358 | else |
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359 | { |
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360 | ROFS( cNStr.find_first_not_of( sm_cSetOfDigits ) == std::string::npos ); |
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361 | ruiNumberOfRepetitions = atoi( cNStr.c_str() ); |
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362 | } |
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363 | } |
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364 | |
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365 | return Err::m_nOK; |
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366 | } |
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367 | |
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368 | ErrVal |
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369 | TEncFormattedStringParser::getNumberOfFrames( const std::string& rcString, |
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370 | UInt& ruiNumberOfFrames ) |
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371 | { |
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372 | size_t uiPos = rcString.find_first_of( sm_cSetOfTypes ); |
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373 | size_t uiUnderScorePos = 0 ; |
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374 | ruiNumberOfFrames = 0; |
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375 | |
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376 | |
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377 | while( uiPos != std::string::npos ) |
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378 | { |
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379 | ruiNumberOfFrames++; |
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380 | uiUnderScorePos = rcString.find_first_of( std::string("_"), uiPos+1 ) ; |
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381 | ROT( uiUnderScorePos == std::string::npos ) ; |
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382 | uiPos = rcString.find_first_of( sm_cSetOfTypes, uiUnderScorePos+1 ); |
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383 | } |
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384 | |
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385 | return Err::m_nOK; |
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386 | } |
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387 | |
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388 | ErrVal |
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389 | TEncFormattedStringParser::extractNextFrameDescription( const std::string& rcString, |
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390 | std::string& rcFDString, |
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391 | size_t& ruiStartPos ) |
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392 | { |
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393 | ROTS( ruiStartPos >= rcString.length()-1 ); |
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394 | size_t uiUnderScorePos = rcString.find_first_of( std::string("_"), ruiStartPos+1 ) ; |
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395 | ROT( uiUnderScorePos == std::string::npos ) ; |
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396 | size_t uiEndPos = rcString.find_first_of( sm_cSetOfTypes, uiUnderScorePos+1 ); |
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397 | |
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398 | rcFDString = rcString.substr( ruiStartPos, uiEndPos - ruiStartPos ); |
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399 | ruiStartPos = uiEndPos; |
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400 | |
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401 | return Err::m_nOK; |
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402 | } |
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403 | |
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404 | ErrVal |
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405 | TEncFormattedStringParser::getNumberOfParts( const std::string& rcString, |
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406 | UInt& ruiNumberOfParts ) |
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407 | { |
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408 | size_t uiPos = rcString.find_first_of( sm_cSetOfPartStart ); |
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409 | ruiNumberOfParts = 0; |
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410 | |
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411 | while( uiPos != std::string::npos ) |
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412 | { |
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413 | ruiNumberOfParts++; |
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414 | |
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415 | if( rcString[uiPos] == '*' ) //GT: Exclude sub-parts |
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416 | { |
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417 | size_t uiEndPos = rcString.find( '{', uiPos+1 ); |
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418 | UInt uiOpenBrackets = 1; |
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419 | ROTS( uiEndPos == std::string::npos ); |
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420 | |
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421 | while( uiOpenBrackets ) |
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422 | { |
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423 | uiEndPos = rcString.find_first_of( "{}", uiEndPos+1 ); |
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424 | ROTS( uiEndPos == std::string::npos ); |
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425 | |
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426 | if( rcString[uiEndPos] == '{' ) uiOpenBrackets++; |
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427 | else uiOpenBrackets--; |
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428 | } |
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429 | |
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430 | uiPos = rcString.find_first_of( sm_cSetOfPartStart, uiEndPos + 1 ); |
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431 | } |
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432 | else |
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433 | { |
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434 | uiPos = rcString.find( '*', uiPos+1 ); |
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435 | } |
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436 | } |
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437 | |
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438 | return Err::m_nOK; |
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439 | } |
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440 | |
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441 | ErrVal |
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442 | TEncFormattedStringParser::extractPart( const std::string& rcString, |
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443 | std::string& rcPartString, |
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444 | size_t& ruiStartPos ) |
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445 | { |
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446 | ROTS( ruiStartPos >= rcString.length()-1 ); |
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447 | |
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448 | size_t uiNextStartPos; |
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449 | |
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450 | if( rcString[ruiStartPos] == '*' ) |
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451 | { |
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452 | size_t uiEndPos = rcString.find( '{', ruiStartPos+1 ); |
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453 | UInt uiOpenBrackets = 1; |
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454 | ROTS( uiEndPos == std::string::npos ); |
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455 | |
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456 | while( uiOpenBrackets ) |
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457 | { |
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458 | uiEndPos = rcString.find_first_of( "{}", uiEndPos+1 ); |
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459 | ROTS( uiEndPos == std::string::npos ); |
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460 | |
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461 | if( rcString[uiEndPos] == '{' ) uiOpenBrackets++; |
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462 | else uiOpenBrackets--; |
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463 | } |
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464 | |
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465 | uiNextStartPos = rcString.find_first_of( sm_cSetOfPartStart, uiEndPos + 1 ); |
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466 | } |
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467 | else |
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468 | { |
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469 | uiNextStartPos = rcString.find( '*', ruiStartPos+1 ); |
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470 | } |
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471 | |
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472 | rcPartString = rcString.substr( ruiStartPos, uiNextStartPos - ruiStartPos ); |
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473 | ruiStartPos = uiNextStartPos; |
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474 | |
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475 | return Err::m_nOK; |
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476 | } |
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477 | |
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478 | ErrVal TEncFormattedStringParser::extractHighestLayerOfGOPString( const std::string &rcString, UInt &ruiLayer ) |
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479 | { |
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480 | std::string::size_type uiPos = 0; |
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481 | ruiLayer = 0; |
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482 | |
---|
483 | while( ( uiPos = rcString.find_first_of( 'L', uiPos ) ) != std::string::npos ) |
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484 | { |
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485 | uiPos++; |
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486 | |
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487 | UInt ui = 0; |
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488 | RNOK( xExtractUInt( rcString, ui, uiPos ) ); |
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489 | if( ui > ruiLayer ) |
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490 | ruiLayer = ui; |
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491 | } |
---|
492 | return Err::m_nOK; |
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493 | } |
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494 | |
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495 | |
---|