/**
* Open an image file for XMP data extraction.
*
* @param $file
* File path.
*
* @return
* Array with XMP file and metadata.
*/
function openXMP($file)
{
// Setup.
SXMPFiles::Initialize();
$xmpfiles = new SXMPFiles();
$xmpmeta = new SXMPMeta();
// Open.
$xmpfiles->OpenFile($file);
// Get XMP metadata into the object.
if ($xmpfiles->GetXMP($xmpmeta)) {
// Sort metadata.
$xmpmeta->Sort();
return array('files' => $xmpfiles, 'meta' => $xmpmeta);
}
// No XMP data available.
return FALSE;
}
/**
* Read XMP data from an image file.
*
* @param $file
* File path.
*
* @param $arTagNames
* Available metadata fields.
*
* @return
* XMP image metadata.
*
* @todo
* Support for different array keys.
*/
public function readXMPTags($file, $enable_sections = TRUE)
{
SXMPFiles::Initialize();
// Get all available XMP tags and XMP data provided by current file
$xmpTags = $this->getXMPFields();
$xmp = $this->openXMP($file);
$info = array();
if ($xmp != FALSE) {
// Iterate over XMP fields defined by CCK.
foreach ($xmpTags as $tagName => $tag) {
// Get XMP field.
$config = $tag;
$field = $this->readXMPItem($xmp, $config);
$info[$tagName] = $field;
}
$this->closeXMP($xmp);
}
SXMPFiles::Terminate();
if ($enable_sections) {
return array('xmp' => $info);
} else {
return $info;
}
}
