1 | |
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2 | #include "TEncFormattedStringParser.h" |
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3 | #include <sstream> |
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4 | #include <algorithm> |
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5 | |
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6 | const std::string TEncFormattedStringParser::sm_cSetOfTypes ("AIPBNipbn"); |
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7 | const std::string TEncFormattedStringParser::sm_cSetOfDigits ("0123456789"); |
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8 | const std::string TEncFormattedStringParser::sm_cSetOfPartStart ("AIPBNipbn*"); |
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9 | |
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10 | ErrVal TEncFormattedStringParser::extractFrameType( const std::string &rcString, |
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11 | SliceType& reSliceType, |
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12 | bool &rbStoreForRef, |
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13 | bool &rbIsIDR, |
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14 | std::string::size_type &ruiStartPos ) |
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15 | { |
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16 | ROT( rcString.length() <= ruiStartPos ); |
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17 | |
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18 | rbIsIDR = rcString[ruiStartPos] == 'A'; |
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19 | rbStoreForRef = isupper( rcString[ruiStartPos] ) != 0; |
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20 | |
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21 | const char cType = rcString[ruiStartPos++]; |
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22 | switch( toupper( cType ) ) |
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23 | { |
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24 | case 'A': |
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25 | case 'I': |
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26 | reSliceType = I_SLICE ; |
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27 | break; |
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28 | case 'P': |
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29 | reSliceType = P_SLICE ; |
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30 | break; |
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31 | case 'B': |
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32 | reSliceType = B_SLICE ; |
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33 | break; |
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34 | default: |
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35 | ROT( 1 ); |
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36 | } |
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37 | |
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38 | return Err::m_nOK; |
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39 | } |
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40 | |
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41 | |
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42 | |
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43 | |
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44 | ErrVal TEncFormattedStringParser::extractFrameIncrement( const std::string &rcString, |
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45 | UInt &ruiIncrement, |
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46 | std::string::size_type &ruiStartPos ) |
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47 | { |
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48 | RNOK( xExtractUInt( rcString, ruiIncrement, ruiStartPos ) ); |
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49 | return Err::m_nOK; |
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50 | } |
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51 | |
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52 | ErrVal TEncFormattedStringParser::extractFrameLayer( const std::string &rcString, |
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53 | UInt &ruiLayer, |
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54 | std::string::size_type &ruiStartPos ) |
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55 | { |
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56 | ruiLayer = 0; |
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57 | ROTRS( std::string::npos == ruiStartPos, Err::m_nOK ); |
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58 | ROTRS( rcString.length() <= ruiStartPos, Err::m_nOK ); |
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59 | ROTRS( rcString[ruiStartPos] != 'L', Err::m_nOK ); |
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60 | ruiStartPos++; |
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61 | RNOK( xExtractUInt( rcString, ruiLayer, ruiStartPos ) ); |
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62 | return Err::m_nOK; |
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63 | } |
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64 | |
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65 | ErrVal TEncFormattedStringParser::xExtractRelRefPocAndRefViewIdx( const std::string &rcString, |
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66 | std::vector<int> &raiAllowedRelativeRefPocs, |
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67 | std::vector<int> &raiAllowedReferenceViewIdx, |
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68 | std::string::size_type &ruiStartPos ) |
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69 | { |
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70 | if( rcString[ruiStartPos] == 'v' || rcString[ruiStartPos] == 'V' ) |
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71 | { |
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72 | ruiStartPos++; |
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73 | int iRefViewIdx = 0; |
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74 | RNOK( xExtractInt( rcString, iRefViewIdx, ruiStartPos ) ); |
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75 | assert( iRefViewIdx >= 0 ); |
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76 | ROF( raiAllowedReferenceViewIdx.end() == std::find( raiAllowedReferenceViewIdx.begin(), raiAllowedReferenceViewIdx.end(), iRefViewIdx ) ); |
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77 | raiAllowedReferenceViewIdx.push_back( iRefViewIdx ); |
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78 | raiAllowedRelativeRefPocs.push_back( 0 ); |
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79 | } |
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80 | else |
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81 | { |
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82 | int iRelRefPoc = 0; |
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83 | RNOK( xExtractInt( rcString, iRelRefPoc, ruiStartPos ) ); |
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84 | ROF( raiAllowedRelativeRefPocs.end() == std::find( raiAllowedRelativeRefPocs.begin(), raiAllowedRelativeRefPocs.end(), iRelRefPoc ) ); |
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85 | raiAllowedRelativeRefPocs.push_back( iRelRefPoc ); |
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86 | raiAllowedReferenceViewIdx.push_back( -1 ); |
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87 | } |
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88 | return Err::m_nOK; |
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89 | } |
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90 | |
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91 | ErrVal TEncFormattedStringParser::extractAllowedRelativeRefPocs( const std::string &rcString, |
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92 | std::vector<int> &raiAllowedRelativeRefPocs, |
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93 | std::vector<int> &raiAllowedReferenceViewIdx, |
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94 | std::string::size_type &ruiStartPos ) |
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95 | { |
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96 | ROF( raiAllowedRelativeRefPocs.empty() ); |
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97 | ROTRS( std::string::npos == ruiStartPos, Err::m_nOK ); |
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98 | ROTRS( rcString.length() <= ruiStartPos, Err::m_nOK ); |
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99 | RNOK( xEatChar( rcString, '(', ruiStartPos ) ); |
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100 | |
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101 | do |
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102 | { |
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103 | RNOK( xExtractRelRefPocAndRefViewIdx( rcString, raiAllowedRelativeRefPocs, raiAllowedReferenceViewIdx, ruiStartPos ) ); |
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104 | } |
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105 | while( xEatChar( rcString, ',', ruiStartPos ) == Err::m_nOK ); |
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106 | RNOK( xEatChar( rcString, ')', ruiStartPos ) ); |
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107 | |
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108 | return Err::m_nOK; |
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109 | } |
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110 | |
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111 | ErrVal TEncFormattedStringParser::extractAllowedRelativeRefPocs( const std::string &rcString, |
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112 | std::vector<int> &raiAllowedRelativeRefPocsL0, |
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113 | std::vector<int> &raiAllowedRelativeRefPocsL1, |
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114 | std::vector<int> &raiAllowedReferenceViewIdxL0, |
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115 | std::vector<int> &raiAllowedReferenceViewIdxL1, |
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116 | std::string::size_type &ruiStartPos ) |
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117 | { |
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118 | ROF( raiAllowedRelativeRefPocsL0.empty() ); |
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119 | ROF( raiAllowedRelativeRefPocsL1.empty() ); |
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120 | |
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121 | ROTRS( std::string::npos == ruiStartPos, Err::m_nOK ); |
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122 | ROTRS( rcString.length() <= ruiStartPos, Err::m_nOK ); |
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123 | |
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124 | RNOK( xEatChar( rcString, '(', ruiStartPos ) ); |
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125 | do |
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126 | { |
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127 | RNOK( xExtractRelRefPocAndRefViewIdx( rcString, raiAllowedRelativeRefPocsL0, raiAllowedReferenceViewIdxL0, ruiStartPos ) ); |
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128 | } |
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129 | while( xEatChar( rcString, ',', ruiStartPos ) == Err::m_nOK ); |
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130 | RNOK( xEatChar( rcString, ';', ruiStartPos ) ); |
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131 | do |
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132 | { |
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133 | RNOK( xExtractRelRefPocAndRefViewIdx( rcString, raiAllowedRelativeRefPocsL1, raiAllowedReferenceViewIdxL1, ruiStartPos ) ); |
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134 | } |
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135 | while( xEatChar( rcString, ',', ruiStartPos ) == Err::m_nOK ); |
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136 | RNOK( xEatChar( rcString, ')', ruiStartPos ) ); |
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137 | return Err::m_nOK; |
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138 | } |
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139 | |
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140 | |
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141 | |
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142 | |
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143 | |
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144 | |
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145 | ErrVal TEncFormattedStringParser::xEatChar( const std::string &rcString, |
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146 | char cChar, |
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147 | std::string::size_type &ruiStartPos ) |
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148 | { |
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149 | ROTS( std::string::npos == ruiStartPos ); |
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150 | ROTS( rcString.length() <= ruiStartPos ); |
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151 | ROFS( rcString[ruiStartPos] == cChar ); |
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152 | ruiStartPos++; |
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153 | return Err::m_nOK; |
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154 | } |
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155 | |
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156 | ErrVal TEncFormattedStringParser::xExtractUInt( const std::string &rcString, |
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157 | UInt &ruiVal, |
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158 | std::string::size_type &ruiStartPos ) |
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159 | { |
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160 | ROT( std::string::npos == ruiStartPos ); |
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161 | ROT( rcString.length() <= ruiStartPos ); |
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162 | const std::string::size_type uiPos = rcString.find_first_not_of( sm_cSetOfDigits, ruiStartPos + ( rcString[ruiStartPos] == '+' ? 1 : 0 ) ); |
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163 | ROT( ruiStartPos == uiPos ); |
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164 | std::stringstream( rcString.substr( ruiStartPos, std::string::npos == uiPos ? std::string::npos : uiPos - ruiStartPos ) ) >> ruiVal; |
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165 | ruiStartPos = uiPos; |
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166 | return Err::m_nOK; |
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167 | } |
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168 | |
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169 | ErrVal TEncFormattedStringParser::xExtractInt( const std::string &rcString, |
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170 | int &riVal, |
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171 | std::string::size_type &ruiStartPos ) |
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172 | { |
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173 | ROT( std::string::npos == ruiStartPos ); |
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174 | ROT( rcString.length() <= ruiStartPos ); |
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175 | const std::string::size_type uiPos = rcString.find_first_not_of( sm_cSetOfDigits, ruiStartPos + ( rcString[ruiStartPos] == '+' || rcString[ruiStartPos] == '-' ? 1 : 0 ) ); |
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176 | ROT( ruiStartPos == uiPos ); |
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177 | std::stringstream( rcString.substr( ruiStartPos, std::string::npos == uiPos ? std::string::npos : uiPos - ruiStartPos ) ) >> riVal; |
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178 | ruiStartPos = uiPos; |
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179 | return Err::m_nOK; |
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180 | } |
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181 | |
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182 | |
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183 | ErrVal |
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184 | TEncFormattedStringParser::separatString ( const std::string& rcString, |
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185 | std::string& rcFDString, |
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186 | std::string& rcMmcoString, |
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187 | std::string& rcRplrStringL0, |
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188 | std::string& rcRplrStringL1) |
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189 | { |
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190 | size_t uiMPos = rcString.find_first_of( "M" ); |
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191 | size_t uiR1Pos = rcString.find_first_of( "R" ); |
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192 | size_t uiR2Pos = rcString.find_last_of ( "R" ); |
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193 | |
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194 | size_t uiSize = rcString.size(); |
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195 | |
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196 | if( std::string::npos == uiMPos ) |
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197 | { |
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198 | rcMmcoString = ""; |
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199 | if( std::string::npos == uiR1Pos ) |
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200 | { |
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201 | rcFDString = rcString; |
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202 | rcRplrStringL0 = ""; |
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203 | rcRplrStringL1 = ""; |
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204 | } |
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205 | else |
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206 | { |
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207 | rcFDString = rcString.substr( 0, uiR1Pos ); |
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208 | if( uiR1Pos == uiR2Pos ) |
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209 | { |
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210 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiSize - uiR1Pos ); |
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211 | rcRplrStringL1 = ""; |
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212 | } |
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213 | else |
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214 | { |
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215 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiR2Pos - uiR1Pos ); |
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216 | rcRplrStringL1 = rcString.substr( uiR2Pos, uiSize - uiR2Pos ); |
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217 | } |
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218 | } |
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219 | } |
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220 | else |
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221 | { |
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222 | if( std::string::npos == uiR1Pos ) |
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223 | { |
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224 | rcFDString = rcString.substr( 0, uiMPos ); |
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225 | rcMmcoString = rcString.substr( uiMPos, uiSize - uiMPos ); |
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226 | rcRplrStringL0 = ""; |
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227 | rcRplrStringL1 = ""; |
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228 | } |
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229 | else |
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230 | { |
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231 | if( uiMPos < uiR1Pos ) |
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232 | { |
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233 | rcFDString = rcString.substr( 0, uiMPos ); |
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234 | rcMmcoString = rcString.substr( uiMPos, uiR1Pos - uiMPos ); |
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235 | if( uiR1Pos == uiR2Pos ) |
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236 | { |
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237 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiSize - uiR1Pos ); |
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238 | rcRplrStringL1 = ""; |
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239 | } |
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240 | else |
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241 | { |
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242 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiR2Pos - uiR1Pos ); |
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243 | rcRplrStringL1 = rcString.substr( uiR2Pos, uiSize - uiR2Pos ); |
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244 | } |
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245 | } |
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246 | else |
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247 | { |
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248 | rcFDString = rcString.substr( 0, uiR1Pos ); |
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249 | |
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250 | if( uiR1Pos == uiR2Pos ) |
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251 | { |
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252 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiMPos - uiR1Pos ); |
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253 | rcRplrStringL1 = ""; |
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254 | rcMmcoString = rcString.substr( uiMPos, uiSize - uiMPos ); |
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255 | } |
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256 | else |
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257 | { |
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258 | if( uiMPos < uiR2Pos ) |
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259 | { |
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260 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiMPos - uiR1Pos ); |
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261 | rcMmcoString = rcString.substr( uiMPos, uiR2Pos - uiMPos ); |
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262 | rcRplrStringL1 = rcString.substr( uiR2Pos, uiSize - uiR2Pos ); |
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263 | |
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264 | } |
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265 | else |
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266 | { |
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267 | rcRplrStringL0 = rcString.substr( uiR1Pos, uiR2Pos - uiR1Pos ); |
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268 | rcRplrStringL1 = rcString.substr( uiR2Pos, uiMPos - uiR2Pos ); |
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269 | rcMmcoString = rcString.substr( uiMPos, uiSize - uiMPos ); |
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270 | } |
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271 | } |
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272 | } |
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273 | } |
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274 | } |
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275 | |
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276 | if( rcRplrStringL0.size() == 1 ) |
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277 | { |
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278 | rcRplrStringL0 = ""; |
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279 | } |
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280 | |
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281 | if( rcRplrStringL1.size() == 1 ) |
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282 | { |
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283 | rcRplrStringL1 = ""; |
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284 | } |
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285 | |
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286 | return Err::m_nOK; |
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287 | } |
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288 | |
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289 | bool |
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290 | TEncFormattedStringParser::isFrameSequencePart( const std::string& rcString ) |
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291 | { |
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292 | return ( rcString.find( '*', 1 ) == std::string::npos ); |
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293 | } |
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294 | |
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295 | |
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296 | ErrVal |
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297 | TEncFormattedStringParser::extractRepetitions( const std::string& rcString, |
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298 | std::string& rcNoRepString, |
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299 | UInt& ruiNumberOfRepetitions ) |
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300 | { |
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301 | ROT( rcString.empty() ); |
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302 | if( rcString[0] != '*' ) |
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303 | { |
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304 | ruiNumberOfRepetitions = 1; |
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305 | rcNoRepString = rcString; |
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306 | } |
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307 | else |
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308 | { |
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309 | size_t uiLastPos = rcString.length () - 1; |
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310 | size_t uiOpenPos = rcString.find ( '{' ); |
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311 | size_t uiClosePos = rcString.rfind ( '}' ); |
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312 | |
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313 | ROTS( uiOpenPos == std::string::npos ); |
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314 | ROFS( uiClosePos == uiLastPos ); |
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315 | |
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316 | rcNoRepString = rcString.substr( uiOpenPos+1, uiClosePos-uiOpenPos-1 ); //GT: abc if rcString = *n100{abc} |
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317 | std::string cNStr = rcString.substr( 1, uiOpenPos - 1 ); //GT n100 if rcString = *n100{abc} |
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318 | ROT( cNStr.empty() ); |
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319 | |
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320 | if( uiOpenPos==2 && cNStr[0]=='n' ) |
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321 | { |
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322 | // ruiNumberOfRepetitions = TypeLimits<UInt>::m_iMax; // reserved value representing "infinity" |
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323 | ruiNumberOfRepetitions = MAX_UINT; // reserved value representing "infinity" |
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324 | } |
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325 | else |
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326 | { |
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327 | ROFS( cNStr.find_first_not_of( sm_cSetOfDigits ) == std::string::npos ); |
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328 | ruiNumberOfRepetitions = atoi( cNStr.c_str() ); |
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329 | } |
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330 | } |
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331 | |
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332 | return Err::m_nOK; |
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333 | } |
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334 | |
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335 | ErrVal |
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336 | TEncFormattedStringParser::getNumberOfFrames( const std::string& rcString, |
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337 | UInt& ruiNumberOfFrames ) |
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338 | { |
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339 | size_t uiPos = rcString.find_first_of( sm_cSetOfTypes ); |
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340 | size_t uiUnderScorePos = 0 ; |
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341 | ruiNumberOfFrames = 0; |
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342 | |
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343 | |
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344 | while( uiPos != std::string::npos ) |
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345 | { |
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346 | ruiNumberOfFrames++; |
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347 | uiUnderScorePos = rcString.find_first_of( std::string("_"), uiPos+1 ) ; |
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348 | ROT( uiUnderScorePos == std::string::npos ) ; |
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349 | uiPos = rcString.find_first_of( sm_cSetOfTypes, uiUnderScorePos+1 ); |
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350 | } |
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351 | |
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352 | return Err::m_nOK; |
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353 | } |
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354 | |
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355 | ErrVal |
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356 | TEncFormattedStringParser::extractNextFrameDescription( const std::string& rcString, |
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357 | std::string& rcFDString, |
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358 | size_t& ruiStartPos ) |
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359 | { |
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360 | ROTS( ruiStartPos >= rcString.length()-1 ); |
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361 | size_t uiUnderScorePos = rcString.find_first_of( std::string("_"), ruiStartPos+1 ) ; |
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362 | ROT( uiUnderScorePos == std::string::npos ) ; |
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363 | size_t uiEndPos = rcString.find_first_of( sm_cSetOfTypes, uiUnderScorePos+1 ); |
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364 | |
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365 | rcFDString = rcString.substr( ruiStartPos, uiEndPos - ruiStartPos ); |
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366 | ruiStartPos = uiEndPos; |
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367 | |
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368 | return Err::m_nOK; |
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369 | } |
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370 | |
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371 | ErrVal |
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372 | TEncFormattedStringParser::getNumberOfParts( const std::string& rcString, |
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373 | UInt& ruiNumberOfParts ) |
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374 | { |
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375 | size_t uiPos = rcString.find_first_of( sm_cSetOfPartStart ); |
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376 | ruiNumberOfParts = 0; |
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377 | |
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378 | while( uiPos != std::string::npos ) |
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379 | { |
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380 | ruiNumberOfParts++; |
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381 | |
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382 | if( rcString[uiPos] == '*' ) //GT: Exclude sub-parts |
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383 | { |
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384 | size_t uiEndPos = rcString.find( '{', uiPos+1 ); |
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385 | UInt uiOpenBrackets = 1; |
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386 | ROTS( uiEndPos == std::string::npos ); |
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387 | |
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388 | while( uiOpenBrackets ) |
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389 | { |
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390 | uiEndPos = rcString.find_first_of( "{}", uiEndPos+1 ); |
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391 | ROTS( uiEndPos == std::string::npos ); |
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392 | |
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393 | if( rcString[uiEndPos] == '{' ) uiOpenBrackets++; |
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394 | else uiOpenBrackets--; |
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395 | } |
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396 | |
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397 | uiPos = rcString.find_first_of( sm_cSetOfPartStart, uiEndPos + 1 ); |
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398 | } |
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399 | else |
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400 | { |
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401 | uiPos = rcString.find( '*', uiPos+1 ); |
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402 | } |
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403 | } |
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404 | |
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405 | return Err::m_nOK; |
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406 | } |
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407 | |
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408 | ErrVal |
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409 | TEncFormattedStringParser::extractPart( const std::string& rcString, |
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410 | std::string& rcPartString, |
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411 | size_t& ruiStartPos ) |
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412 | { |
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413 | ROTS( ruiStartPos >= rcString.length()-1 ); |
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414 | |
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415 | size_t uiNextStartPos; |
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416 | |
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417 | if( rcString[ruiStartPos] == '*' ) |
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418 | { |
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419 | size_t uiEndPos = rcString.find( '{', ruiStartPos+1 ); |
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420 | UInt uiOpenBrackets = 1; |
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421 | ROTS( uiEndPos == std::string::npos ); |
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422 | |
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423 | while( uiOpenBrackets ) |
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424 | { |
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425 | uiEndPos = rcString.find_first_of( "{}", uiEndPos+1 ); |
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426 | ROTS( uiEndPos == std::string::npos ); |
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427 | |
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428 | if( rcString[uiEndPos] == '{' ) uiOpenBrackets++; |
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429 | else uiOpenBrackets--; |
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430 | } |
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431 | |
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432 | uiNextStartPos = rcString.find_first_of( sm_cSetOfPartStart, uiEndPos + 1 ); |
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433 | } |
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434 | else |
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435 | { |
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436 | uiNextStartPos = rcString.find( '*', ruiStartPos+1 ); |
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437 | } |
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438 | |
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439 | rcPartString = rcString.substr( ruiStartPos, uiNextStartPos - ruiStartPos ); |
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440 | ruiStartPos = uiNextStartPos; |
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441 | |
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442 | return Err::m_nOK; |
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443 | } |
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444 | |
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445 | ErrVal TEncFormattedStringParser::extractHighestLayerOfGOPString( const std::string &rcString, UInt &ruiLayer ) |
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446 | { |
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447 | std::string::size_type uiPos = 0; |
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448 | ruiLayer = 0; |
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449 | |
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450 | while( ( uiPos = rcString.find_first_of( 'L', uiPos ) ) != std::string::npos ) |
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451 | { |
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452 | uiPos++; |
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453 | |
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454 | UInt ui = 0; |
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455 | RNOK( xExtractUInt( rcString, ui, uiPos ) ); |
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456 | if( ui > ruiLayer ) |
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457 | ruiLayer = ui; |
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458 | } |
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459 | return Err::m_nOK; |
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460 | } |
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461 | |
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462 | |
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