1 | <?php |
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2 | /* |
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3 | * --:: JPEG MetaDatas ::------------------------------------------------------- |
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4 | * |
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5 | * Author : Grum |
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6 | * email : grum at piwigo.org |
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7 | * website : http://photos.grum.fr |
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8 | * |
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9 | * << May the Little SpaceFrog be with you ! >> |
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10 | * |
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11 | * ----------------------------------------------------------------------------- |
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12 | * |
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13 | * |
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14 | * ----------------------------------------------------------------------------- |
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15 | * a voir sil n'est pas plus judicieux de dériver cette classe de GenericReader |
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16 | * plutôt que SegmentReader |
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17 | * ----------------------------------------------------------------------------- |
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18 | */ |
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19 | |
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20 | require_once(JPEG_METADATA_DIR."Common/Data.class.php"); |
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21 | require_once(JPEG_METADATA_DIR."Common/XmlData.class.php"); |
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22 | require_once(JPEG_METADATA_DIR."Readers/SegmentReader.class.php"); |
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23 | require_once(JPEG_METADATA_DIR."TagDefinitions/XmpTags.class.php"); |
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24 | |
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25 | class XmpReader extends SegmentReader |
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26 | { |
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27 | private $xml = ""; |
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28 | private $xmlData = NULL; |
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29 | private $tags = Array(); |
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30 | |
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31 | private $tagDef = null; |
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32 | |
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33 | private $xmpTag2Exif = NULL; |
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34 | |
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35 | function __construct(Data $data) |
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36 | { |
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37 | parent::__construct($data); |
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38 | |
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39 | $this->xml=explode("\x00", $data->readASCII()); |
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40 | if(count($this->xml)>1) |
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41 | { |
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42 | $this->xml=$this->xml[1]; |
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43 | } |
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44 | else |
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45 | { |
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46 | $this->xml=""; |
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47 | } |
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48 | |
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49 | $this->xmpTag2Exif = new XmpTag2Exif("", 0, 0); |
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50 | |
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51 | $this->xmlData = new XmlData($this->xml); |
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52 | $this->tagDef = new XmpTags(); |
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53 | |
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54 | $this->loadTags(); |
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55 | |
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56 | $this->isValid = $this->xmlData->isValid(); |
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57 | $this->isLoaded = $this->xmlData->isLoaded(); |
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58 | |
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59 | } |
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60 | |
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61 | function __destruct() |
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62 | { |
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63 | unset($this->tags); |
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64 | unset($this->tagDef); |
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65 | unset($this->xmpTag2Exif); |
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66 | } |
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67 | |
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68 | public function getTags() |
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69 | { |
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70 | return($this->tags); |
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71 | } |
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72 | |
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73 | public function toString() |
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74 | { |
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75 | $returned=$this->xml; |
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76 | return($returned); |
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77 | } |
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78 | |
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79 | private function loadTags() |
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80 | { |
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81 | if($this->xmlData->hasNodes()) |
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82 | { |
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83 | $this->processNode($this->xmlData->getFirstNode()); |
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84 | } |
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85 | } |
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86 | |
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87 | private function processNode($node) |
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88 | { |
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89 | if(!is_null($node)) |
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90 | { |
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91 | $node->setName($this->processNodeName($node->getName())); |
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92 | |
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93 | foreach($node->getAttributes() as $key => $val) |
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94 | { |
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95 | $val['name']=$this->processNodeName($val['name']); |
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96 | $this->addTag($val['name'], $val['value']); |
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97 | } |
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98 | |
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99 | if(!is_null($node->getValue())) |
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100 | { |
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101 | $this->addTag($node->getName(), $node->getValue()); |
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102 | } |
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103 | |
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104 | if($node->hasChilds()) |
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105 | { |
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106 | $this->processChildNode($node); |
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107 | } |
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108 | |
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109 | $this->processNode($node->getNextNode()); |
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110 | } |
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111 | } |
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112 | |
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113 | private function processNodeName($nodeName) |
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114 | { |
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115 | /* |
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116 | * 'xap' schema have to be interpreted as a 'xmp' schema |
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117 | * rename all 'xap' nodes in 'xmp' nodes |
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118 | */ |
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119 | $name=preg_replace(Array("/^(xap:)/", "/^(xapMM:)/"), Array("xmp:", "xmpMM:"), $nodeName); |
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120 | |
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121 | return($name); |
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122 | } |
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123 | |
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124 | private function processChildNode($node) |
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125 | { |
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126 | switch($node->getName()) |
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127 | { |
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128 | /* |
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129 | * child must be 'rdf:Seq', 'rdf:Bag' or 'rdf:Alt' |
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130 | */ |
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131 | case "dc:contributor" : // bag |
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132 | case "dc:creator" : // seq |
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133 | case "dc:date" : // seq |
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134 | case "dc:description" : // alt |
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135 | case "dc:language" : // bag |
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136 | case "dc:publisher" : // bag |
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137 | case "dc:relation" : // bag |
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138 | case "dc:rights" : // alt |
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139 | case "dc:subject" : // bag |
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140 | case "dc:title" : // alt |
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141 | case "dc:Type" : // bag |
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142 | case "xmp:Advisory" : // bag |
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143 | case "xmp:Identifier" : // bag |
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144 | case "xmp:Thumbnails" : // alt |
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145 | case "xmpRights:Owner" : // bag |
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146 | case "xmpRights:UsageTerms" : // alt |
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147 | case "xmpMM:History" : // seq |
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148 | case "xmpMM:Versions" : // seq |
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149 | case "xmpBJ:JobRef" : // bag |
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150 | case "xmpTPg:Fonts" : // bag |
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151 | case "xmpTPg:Colorants" : // seq |
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152 | case "xmpTPg:PlateNames" : // seq |
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153 | case "photoshop:SupplementalCategories" : // bag |
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154 | case "crs:ToneCurve" : // seq |
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155 | case "tiff:BitsPerSample" : // seq |
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156 | case "tiff:YCbCrSubSampling" : // seq |
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157 | case "tiff:TransferFunction" : // seq |
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158 | case "tiff:WhitePoint" : // seq |
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159 | case "tiff:PrimaryChromaticities" : // seq |
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160 | case "tiff:YCbCrCoefficients" : // seq |
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161 | case "tiff:ReferenceBlackWhite" : // seq |
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162 | case "tiff:ImageDescription" : // alt |
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163 | case "tiff:Copyright" : // alt |
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164 | case "exif:ComponentsConfiguration" : // seq |
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165 | case "exif:UserComment" : // alt |
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166 | case "exif:ISOSpeedRatings" : // seq |
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167 | case "exif:SubjectArea" : // seq |
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168 | case "exif:SubjectLocation" : // seq |
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169 | case "Iptc4xmpCore:Scene": //bag |
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170 | case "Iptc4xmpCore:SubjectCode": //bag |
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171 | $child=$node->getFirstChild(); |
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172 | switch($child->getName()) |
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173 | { |
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174 | case "rdf:Seq": |
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175 | $type="seq"; |
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176 | break; |
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177 | case "rdf:Bag": |
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178 | $type="bag"; |
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179 | break; |
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180 | case "rdf:Alt": |
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181 | $type="alt"; |
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182 | break; |
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183 | default: |
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184 | $type="n/a"; |
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185 | break; |
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186 | } |
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187 | if($type=="seq" or $type=="bag" or $type="alt") |
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188 | { |
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189 | $value=Array('type' => $type, 'values' => Array()); |
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190 | $childNode=$child->getFirstChild(); |
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191 | while(!is_null($childNode)) |
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192 | { |
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193 | if($childNode->getName() == "rdf:li") |
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194 | { |
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195 | if($type=="alt") |
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196 | { |
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197 | $attributes=$childNode->getAttributes(); |
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198 | if(count($attributes)>0) |
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199 | { |
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200 | $attributes=$attributes[0]; |
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201 | } |
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202 | else |
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203 | { |
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204 | $attributes="n/a"; |
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205 | } |
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206 | $value['values'][]=Array('type' => $attributes, 'value' => $childNode->getValue()); |
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207 | } |
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208 | else |
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209 | { |
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210 | $value['values'][]=$childNode->getValue(); |
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211 | } |
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212 | } |
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213 | $childNode=$childNode->getNextNode(); |
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214 | } |
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215 | $this->addTag($node->getName(), $value); |
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216 | } |
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217 | break; |
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218 | default: |
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219 | $this->processNode($node->getFirstChild()); |
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220 | break; |
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221 | } |
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222 | } |
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223 | |
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224 | private function addTag($name, $value) |
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225 | { |
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226 | $tag=new Tag($name, $value, $name); |
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227 | |
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228 | if($this->tagDef->tagIdExists($name)) |
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229 | { |
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230 | $tagProperties=$this->tagDef->getTagById($name); |
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231 | |
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232 | $tag->setIsKnown(true); |
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233 | $tag->setIsImplemented($tagProperties['implemented']); |
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234 | |
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235 | |
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236 | if(array_key_exists('name', $tagProperties)) |
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237 | { |
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238 | $tag->setName($tagProperties['name']); |
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239 | } |
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240 | |
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241 | /* |
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242 | * if there is values defined for the tag, analyze it |
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243 | */ |
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244 | if(array_key_exists('tagValues', $tagProperties)) |
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245 | { |
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246 | if(array_key_exists($value, $tagProperties['tagValues'])) |
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247 | { |
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248 | $tag->setLabel($tagProperties['tagValues'][$value]); |
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249 | } |
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250 | else |
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251 | { |
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252 | $tag->setLabel("[unknow value '".$value."']"); |
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253 | } |
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254 | } |
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255 | else |
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256 | { |
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257 | /* |
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258 | * there is no values defined for the tag, analyzing it with dedicated |
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259 | * function |
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260 | */ |
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261 | if(array_key_exists('exifTag', $tagProperties)) |
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262 | { |
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263 | $tag->setLabel($this->xmp2Exif($name, $tagProperties['exifTag'], $value)); |
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264 | } |
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265 | else |
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266 | { |
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267 | $tag->setLabel($this->processSpecialTag($name, $value)); |
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268 | } |
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269 | |
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270 | } |
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271 | } |
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272 | |
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273 | $this->tags[]=$tag; |
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274 | } |
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275 | |
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276 | private function processSpecialTag($name, $value) |
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277 | { |
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278 | /* |
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279 | * Note : exif & tiff values are not processed in this function |
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280 | */ |
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281 | switch($name) |
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282 | { |
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283 | case "x:xmptk": |
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284 | case "dc:coverage": |
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285 | case "dc:format": |
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286 | case "dc:identifier": |
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287 | case "dc:relation": |
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288 | case "dc:source": |
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289 | case "dc:title": |
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290 | case "xmp:BaseURL": |
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291 | case "xmp:CreatorTool": |
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292 | case "xmp:Label": |
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293 | case "xmp:Nickname": |
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294 | case "xmp:Rating:": |
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295 | case "xmpRights:Certificate": |
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296 | case "xmpRights:Marked": |
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297 | case "xmpRights:UsageTerms": |
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298 | case "xmpRights:WebStatement": |
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299 | case "xmpMM:DocumentID": |
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300 | case "xmpMM:InstanceID": |
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301 | case "xmpMM:Manager": |
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302 | case "xmpMM:ManageTo": |
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303 | case "xmpMM:ManageUI": |
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304 | case "xmpMM:ManagerVariant": |
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305 | case "xmpMM:RenditionParams": |
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306 | case "xmpMM:VersionID": |
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307 | case "xmpMM:LastURL": |
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308 | case "photoshop:AuthorsPosition": |
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309 | case "photoshop:CaptionWriter": |
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310 | case "photoshop:Category": |
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311 | case "photoshop:City": |
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312 | case "photoshop:Country": |
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313 | case "photoshop:Credit": |
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314 | case "photoshop:Headline": |
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315 | case "photoshop:Instructions": |
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316 | case "photoshop:Source": |
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317 | case "photoshop:State": |
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318 | case "photoshop:TransmissionReference": |
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319 | case "crs:AutoBrightness": |
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320 | case "crs:AutoContrast": |
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321 | case "crs:AutoExposure": |
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322 | case "crs:AutoShadows": |
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323 | case "crs:BlueHue": |
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324 | case "crs:BlueSaturation": |
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325 | case "crs:Brightness": |
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326 | case "crs:CameraProfile": |
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327 | case "crs:ChromaticAberrationB": |
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328 | case "crs:ChromaticAberrationR": |
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329 | case "crs:ColorNoiseReduction": |
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330 | case "crs:Contrast": |
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331 | case "crs:CropTop": |
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332 | case "crs:CropLeft": |
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333 | case "crs:CropBottom": |
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334 | case "crs:CropRight": |
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335 | case "crs:CropAngle": |
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336 | case "crs:CropWidth": |
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337 | case "crs:CropHeight": |
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338 | case "crs:Exposure": |
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339 | case "crs:GreenHue": |
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340 | case "crs:GreenSaturation": |
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341 | case "crs:HasCrop": |
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342 | case "crs:HasSettings": |
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343 | case "crs:LuminanceSmoothing": |
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344 | case "crs:RawFileName": |
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345 | case "crs:RedHue": |
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346 | case "crs:RedSaturation": |
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347 | case "crs:Saturation": |
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348 | case "crs:Shadows": |
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349 | case "crs:ShadowTint": |
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350 | case "crs:Sharpness": |
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351 | case "crs:Temperature": |
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352 | case "crs:Tint": |
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353 | case "crs:Version": |
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354 | case "crs:VignetteAmount": |
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355 | case "crs:VignetteMidpoint": |
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356 | case "Iptc4xmpCore:CountryCode": |
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357 | case "Iptc4xmpCore:Location": |
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358 | case "Iptc4xmpCore:CiEmailWork": |
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359 | case "Iptc4xmpCore:CiUrlWork": |
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360 | case "Iptc4xmpCore:CiTelWork": |
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361 | case "Iptc4xmpCore:CiAdrExtadr": |
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362 | case "Iptc4xmpCore:CiAdrPcode": |
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363 | case "Iptc4xmpCore:CiAdrCity": |
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364 | case "Iptc4xmpCore:CiAdrCtry": |
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365 | $returned=$value; |
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366 | break; |
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367 | case "Iptc4xmpCore:IntellectualGenre": |
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368 | $returned=explode(":", $value); |
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369 | break; |
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370 | case "xmp:CreateDate": |
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371 | case "xmp:ModifyDate": |
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372 | case "xmp:MetadataDate": |
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373 | case "tiff:DateTime": |
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374 | case "photoshop:DateCreated": |
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375 | case "Iptc4xmpCore:DateCreated": |
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376 | $returned=ConvertData::toDateTime($value); |
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377 | break; |
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378 | case "dc:contributor" : // bag |
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379 | case "dc:creator" : // seq |
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380 | case "dc:date" : // seq |
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381 | case "dc:description" : // alt |
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382 | case "dc:language" : // bag |
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383 | case "dc:publisher" : // bag |
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384 | case "dc:relation" : // bag |
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385 | case "dc:rights" : // alt |
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386 | case "dc:subject" : // bag |
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387 | case "dc:title" : // alt |
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388 | case "dc:Type" : // bag |
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389 | case "xmp:Advisory" : // bag |
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390 | case "xmp:Identifier" : // bag |
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391 | case "xmp:Thumbnails" : // alt |
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392 | case "xmpRights:Owner" : // bag |
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393 | case "xmpRights:UsageTerms" : // alt |
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394 | case "xmpMM:History" : // seq |
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395 | case "xmpMM:Versions" : // seq |
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396 | case "xmpBJ:JobRef" : // bag |
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397 | case "xmpTPg:Fonts" : // bag |
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398 | case "xmpTPg:Colorants" : // seq |
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399 | case "xmpTPg:PlateNames" : // seq |
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400 | case "photoshop:SupplementalCategories" : // bag |
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401 | case "crs:ToneCurve" : // seq |
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402 | case "tiff:BitsPerSample" : // seq |
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403 | case "tiff:YCbCrSubSampling" : // seq |
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404 | case "tiff:TransferFunction" : // seq |
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405 | case "tiff:WhitePoint" : // seq |
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406 | case "tiff:PrimaryChromaticities" : // seq |
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407 | case "tiff:YCbCrCoefficients" : // seq |
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408 | case "tiff:ReferenceBlackWhite" : // seq |
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409 | case "tiff:ImageDescription" : // alt |
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410 | case "tiff:Copyright" : // alt |
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411 | case "exif:ComponentsConfiguration" : // seq |
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412 | case "exif:UserComment" : // alt |
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413 | case "exif:ISOSpeedRatings" : // seq |
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414 | case "exif:SubjectArea" : // seq |
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415 | case "exif:SubjectLocation" : // seq |
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416 | $returned=$value; |
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417 | break; |
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418 | case "Iptc4xmpCore:Scene": //bag |
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419 | $tag=$this->tagDef->getTagById('Iptc4xmpCore:Scene'); |
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420 | $returned=$value; |
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421 | foreach($returned['values'] as $key=>$val) |
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422 | { |
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423 | if(array_key_exists($val, $tag['tagValues.special'])) |
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424 | $returned['values'][$key]=$tag['tagValues.special'][$val]; |
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425 | } |
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426 | break; |
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427 | case "Iptc4xmpCore:SubjectCode": //bag |
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428 | $returned=$value; |
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429 | foreach($returned['values'] as $key=>$val) |
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430 | { |
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431 | $tmp=explode(":", $val); |
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432 | |
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433 | $returned['values'][$key]=Array(); |
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434 | |
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435 | if(count($tmp)>=1) |
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436 | $returned['values'][$key]['IPR']=$tmp[0]; |
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437 | |
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438 | if(count($tmp)>=2) |
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439 | $returned['values'][$key]['subjectCode']=$tmp[1]; |
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440 | |
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441 | if(count($tmp)>=3) |
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442 | $returned['values'][$key]['subjectName']=$tmp[2]; |
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443 | |
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444 | if(count($tmp)>=4) |
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445 | $returned['values'][$key]['subjectMatterName']=$tmp[3]; |
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446 | |
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447 | if(count($tmp)>=5) |
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448 | $returned['values'][$key]['subjectDetailName']=$tmp[4]; |
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449 | } |
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450 | break; |
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451 | default: |
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452 | $returned="Not yet implemented; $name"; |
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453 | break; |
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454 | } |
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455 | return($returned); |
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456 | } |
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457 | |
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458 | private function xmp2Exif($tagName, $exifTag, $xmpValue) |
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459 | { |
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460 | switch($tagName) |
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461 | { |
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462 | /* integers */ |
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463 | case "tiff:ImageWidth": |
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464 | case "tiff:ImageLength": |
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465 | case "tiff:PhotometricInterpretation": |
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466 | case "tiff:Orientation": |
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467 | case "tiff:SamplesPerPixel": |
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468 | case "tiff:PlanarConfiguration": |
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469 | case "tiff:YCbCrSubSampling": |
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470 | case "tiff:YCbCrPositioning": |
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471 | case "tiff:ResolutionUnit": |
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472 | case "exif:ColorSpace": |
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473 | case "exif:PixelXDimension": |
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474 | case "exif:PixelYDimension": |
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475 | case "exif:MeteringMode": |
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476 | case "exif:LightSource": |
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477 | case "exif:FlashEnergy": |
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478 | case "exif:FocalPlaneResolutionUnit": |
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479 | case "exif:SensingMethod": |
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480 | case "exif:FileSource": |
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481 | case "exif:SceneType": |
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482 | case "exif:CustomRendered": |
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483 | case "exif:ExposureMode": |
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484 | case "exif:WhiteBalance": |
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485 | case "exif:FocalLengthIn35mmFilm": |
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486 | case "exif:SceneCaptureType": |
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487 | case "exif:GainControl": |
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488 | case "exif:Contrast": |
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489 | case "exif:Saturation": |
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490 | case "exif:Sharpness": |
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491 | case "exif:SubjectDistanceRange": |
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492 | case "exif:GPSAltitudeRef": |
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493 | case "exif:GPSDifferential": |
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494 | $returned=(int)$xmpValue; |
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495 | $type=ByteType::ULONG; |
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496 | break; |
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497 | /* specials */ |
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498 | case "tiff:BitsPerSample": |
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499 | case "tiff:Compression": |
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500 | case "tiff:TransferFunction": |
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501 | case "tiff:WhitePoint": |
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502 | case "tiff:PrimaryChromaticities": |
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503 | case "tiff:YCbCrCoefficients": |
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504 | case "tiff:ReferenceBlackWhite": |
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505 | case "exif:ComponentsConfiguration": |
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506 | case "exif:ExposureProgram": |
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507 | case "exif:ISOSpeedRatings": |
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508 | case "exif:OECF": |
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509 | case "exif:Flash": |
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510 | case "exif:SubjectArea": |
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511 | case "exif:SpatialFrequencyResponse": |
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512 | case "exif:SubjectLocation": |
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513 | case "exif:CFAPattern": |
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514 | case "exif:DeviceSettingDescription": |
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515 | case "exif:GPSLatitude": |
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516 | case "exif:GPSLongitude": |
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517 | case "exif:GPSDestLatitude": |
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518 | case "exif:GPSDestLongitude": |
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519 | $returned=$xmpValue; |
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520 | $type=ByteType::UNDEFINED; |
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521 | break; |
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522 | /* rational */ |
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523 | case "tiff:XResolution": |
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524 | case "tiff:YResolution": |
---|
525 | case "exif:CompressedBitsPerPixel": |
---|
526 | case "exif:ExposureTime": |
---|
527 | case "exif:FNumber": |
---|
528 | case "exif:ShutterSpeedValue": |
---|
529 | case "exif:ApertureValue": |
---|
530 | case "exif:BrightnessValue": |
---|
531 | case "exif:ExposureBiasValue": |
---|
532 | case "exif:MaxApertureValue": |
---|
533 | case "exif:SubjectDistance": |
---|
534 | case "exif:FocalLength": |
---|
535 | case "exif:FocalPlaneXResolution": |
---|
536 | case "exif:FocalPlaneYResolution": |
---|
537 | case "exif:ExposureIndex": |
---|
538 | case "exif:DigitalZoomRatio": |
---|
539 | case "exif:GPSAltitude": |
---|
540 | case "exif:GPSDOP": |
---|
541 | case "exif:GPSSpeed": |
---|
542 | case "exif:GPSTrack": |
---|
543 | case "exif:GPSImgDirection": |
---|
544 | case "exif:GPSDestBearing": |
---|
545 | case "exif:GPSDestDistance": |
---|
546 | $computed=explode("/", $xmpValue); |
---|
547 | $returned=Array((int)$computed[0], (int)$computed[1]); |
---|
548 | $type=ByteType::URATIONAL; |
---|
549 | break; |
---|
550 | /* dates & texts */ |
---|
551 | case "tiff:DateTime": |
---|
552 | case "tiff:ImageDescription": |
---|
553 | case "tiff:Make": |
---|
554 | case "tiff:Model": |
---|
555 | case "tiff:Software": |
---|
556 | case "tiff:Artist": |
---|
557 | case "tiff:Copyright": |
---|
558 | case "exif:ExifVersion": |
---|
559 | case "exif:FlashpixVersion": |
---|
560 | case "exif:UserComment": |
---|
561 | case "exif:RelatedSoundFile": |
---|
562 | case "exif:DateTimeOriginal": |
---|
563 | case "exif:DateTimeDigitized": |
---|
564 | case "exif:SpectralSensitivity": |
---|
565 | case "exif:ImageUniqueID": |
---|
566 | case "exif:GPSVersionID": |
---|
567 | case "exif:GPSTimeStamp": |
---|
568 | case "exif:GPSSatellites": |
---|
569 | case "exif:GPSStatus": |
---|
570 | case "exif:GPSMeasureMode": |
---|
571 | case "exif:GPSSpeedRef": |
---|
572 | case "exif:GPSTrackRef": |
---|
573 | case "exif:GPSImgDirectionRef": |
---|
574 | case "exif:GPSMapDatum": |
---|
575 | case "exif:GPSDestBearingRef": |
---|
576 | case "exif:GPSDestDistanceRef": |
---|
577 | case "exif:GPSProcessingMethod": |
---|
578 | case "exif:GPSAreaInformation": |
---|
579 | $returned=$xmpValue; |
---|
580 | $type=ByteType::ASCII; |
---|
581 | break; |
---|
582 | default: |
---|
583 | $returned="Unknown tag: $tagName => $xmpValue"; |
---|
584 | break; |
---|
585 | } |
---|
586 | if(is_array($returned)) |
---|
587 | { |
---|
588 | if(array_key_exists('type', $returned)) |
---|
589 | { |
---|
590 | if($returned['type']=='alt') |
---|
591 | { |
---|
592 | } |
---|
593 | else |
---|
594 | { |
---|
595 | foreach($returned['values'] as $key => $val) |
---|
596 | { |
---|
597 | $returned['values'][$key]['value']=$this->xmpTag2Exif->convert($exifTag, $val['value'], $type); |
---|
598 | } |
---|
599 | } |
---|
600 | } |
---|
601 | else |
---|
602 | { |
---|
603 | return($this->xmpTag2Exif->convert($exifTag, $returned, $type)); |
---|
604 | } |
---|
605 | } |
---|
606 | return($returned); |
---|
607 | } |
---|
608 | |
---|
609 | } |
---|
610 | |
---|
611 | |
---|
612 | class XmpTag2Exif extends IfdReader |
---|
613 | { |
---|
614 | public function convert($exifTag, $value, $type) |
---|
615 | { |
---|
616 | return($this->processSpecialTag($exifTag, $value, $type)); |
---|
617 | } |
---|
618 | } |
---|
619 | |
---|
620 | ?> |
---|
621 | |
---|