XMP support available?

Hi,
i'v seen a few posts about supporting XMP tags in uploaded pics, but these are from years ago.

Is there anything available to have gallery2 use XMP tags that are i.e. put there by Microsoft Live Photo gallery?

are there any plans to support this in the future?
Is it on some wishlist maybe?

Here's my ExitDescriptionOptions.inc (renamed to .txt) file that I modified to add support for pulling out the Title from Windows Live Photo Gallery. It's a hack, I admit it, but it does the job for me and makes it much easier to add captions to my pictures.

Scott

Final update... In my photos the xmp tag is sometimes <xmp:xmpmeta> and other times <x:xmpmeta>. I added a quick "hack" to fix this but more experienced programmers can probably clean up my code quite a bit

This is svillinskis hack modified a bit so it also puls out keywords from the photos

Insert the following code after this

Windows Live Photo Gallery now includes a 'people tagging' feature. I wanted to import this metadata into my Gallery in addition to the general tags. I have modified the above code to do this...

else if (!empty($exifData[$itemId]['UserComment']['value'])) {
$itemDescription = $exifData[$itemId]['UserComment']['value'];
}

// Here is the breakdown of the XMP tags for Windows Live Photo Gallery
//
// WLPG - Original Version
// Comments - /xmp:xmpmeta/rdf:RDF/rdf:Description/exit:UserComment/rdf:Alt/rdf:li
// Caption- /xmp:xmpmeta/rdf:RDF/rdf:Description/dc:title/rdf:Alt/rdf:li
// Subject - /xmp:xmpmeta/rdf:RDF/rdf:Description/dc:description/rdf:Alt/rdf:li
// Tag - /xmp:xmpmeta/rdf:RDF/rdf:Description/dc:subject/rdf:Bag/rdf:li
// Tag (XMP) - /xmp:xmpmeta/rdf:RDF/rdf:Description/MicrosoftPhoto:LastKeywordXMP/rdf:Bag/rdf:li
//
// WLPG - M3
// Comments - /x:xmpmeta/rdf:RDF/rdf:Description/exif:UserComment/rdf:Alt/rdf:li
// Caption - /x:xmpmeta/rdf:RDF/rdf:Description/dc:title/rdf:Alt/rdf:li
// Subject - /x:xmpmeta/rdf:RDF/rdf:Description/dc:description/rdf:Alt/rdf:li
// Tag - /x:xmpmeta/rdf:RDF/rdf:Description/dc:subject/rdf:Bag/rdf:li
// Tag (XMP) - /x:xmpmeta/rdf:RDF/rdf:Description/MicrosoftPhoto:LastKeywordXMP/rdf:Bag/rdf:li
// Set constants for reading out XML tags - same for Retail and M3
$XMPCaption = "//dc:title/rdf:Alt/rdf:li";
$XMPTag = "//MicrosoftPhoto:LastKeywordXMP/rdf:Bag/rdf:li";
//JR Extended tag query to include PersonDisplayName from Windows Live Photo Gallery person tagging
$XMPTag2 = "//MPRI:Regions/rdf:Bag/rdf:li/rdf:Description/MPReg:PersonDisplayName";
$XMPComments = "//exif:UserComment/rdf:Alt/rdf:li";
$XMPSubject = "//dc:description/rdf:Alt/rdf:li";
$XMPRetailStart = "<xmp:xmpmeta ";
$XMPRetailEnd = "</xmp:xmpmeta>";
$XMPM3Start = "<x:xmpmeta ";
$XMPM3End = "</x:xmpmeta>";

// Enable Logging
//$xmplogging = True;
$xmplogging = False;
$xmplogging_file = "/home/moorscap/var/g2data/exifupload.log";

// Find the item based on the itemId
if ($xmplogging) { error_log("Start of Item add: " . date('l jS \of F Y h:i:s A') . "\n", 3, $xmplogging_file);}
list ($ret, $item) = GalleryCoreApi::loadEntitiesById($itemId);

// Retrieve the path for the item
list ($ret, $path) = $item->fetchPath();
if ($xmplogging) {error_log(" Item path: " . $path . "\n", 3, $xmplogging_file);}

ob_start();
readfile($path);
$source = ob_get_contents();
ob_end_clean();

// Check to see if ":xmpmeta" exists, if so, then check to see which version it is
// Finding the beginning of the XMP stream for M3 version
$xmpdata_start = strpos($source, $XMPM3Start);
$xmpdata_end = strpos($source,$XMPM3End);
if ($xmpdata_start == false) {
// if ($xmplogging) { error_log("Checking to see if this is a Retail version file...\n", 3, $xmplogging_file);}
$xmpdata_start = strpos($source, $XMPRetailStart);
$xmpdata_end = strpos($source,$XMPRetailEnd);
}

if ($xmpdata_start < $xmpdata_end) {
if ($xmplogging) {error_log(" XMP Data exists\n", 3, $xmplogging_file);}
$xmplength= $xmpdata_end-$xmpdata_start;
$xmpdata = substr($source,$xmpdata_start,$xmplength+14);
$sxe = new SimpleXMLElement($xmpdata);

//Fetch all namespaces
$namespaces = $sxe->getNamespaces(true);

//Register them with their prefixes
foreach ($namespaces as $prefix => $ns) {
$sxe->registerXPathNamespace($prefix, $ns);
}

// Pull out the title (caption)
if ($xmplogging) {error_log(" Searching for XMP Title\n", 3, $xmplogging_file);}
$result = $sxe->xpath($XMPCaption);
if ($xmplogging) {error_log(" Title count: " . sizeof($result) . "\n", 3, $xmplogging_file);}
if (sizeof($result) > 0) {
$currentItems[$i]->setTitle($result[0]);
$mustSave = true;
if ($xmplogging) {error_log(" Updated title: " . $result[0] . "\n", 3, $xmplogging_file);}
}

// Pull out the Keywords (tags)
if ($xmplogging) {error_log(" Searching for XMP Keywords\n", 3, $xmplogging_file);}
$keywords = "";
$result = $sxe->xpath($XMPTag);
if ($xmplogging) {error_log(" Keyword count: " . sizeof($result) . "\n", 3, $xmplogging_file);}
if (sizeof($result) > 0) {
// Need to iterate through the $result to add all keywords to the keyword list
foreach ($result as $keyword) {
$keywords .= $keyword . ";";
}
}
$result = $sxe->xpath($XMPTag2);
if ($xmplogging) {error_log(" Keyword count2: " . sizeof($result) . "\n", 3, $xmplogging_file);}
if (sizeof($result) > 0) {
// Need to iterate through the $result to add all keywords to the keyword list
foreach ($result as $keyword) {
$keywords .= $keyword . ";";
}
}
if ($keywords != "") {
$currentItems[$i]->setKeywords($keywords);
$mustSave = true;
if ($xmplogging) {error_log(" Updated keywords: " . $keywords . "\n" , 3, $xmplogging_file);}
}

// Pulling out the Subject to put in the Summary
if ($xmplogging) {error_log(" Searching for XMP Subject\n", 3, $xmplogging_file);}
$result = $sxe->xpath($XMPSubject);
if ($xmplogging) {error_log(" Summary count: " . sizeof($result) . "\n", 3, $xmplogging_file);}
if (sizeof($result) > 0) {
$currentItems[$i]->setSummary($result[0]);
$mustSave = true;
if ($xmplogging) {error_log(" Updated summary: " . $result[0] . "\n", 3, $xmplogging_file);}
}
}
if ($xmplogging) { error_log("End of Item add: " . date('l jS \of F Y h:i:s A') . "\n\n", 3, $xmplogging_file);}
// End of Windows Live Photo Gallery additions

Well after editing the file above I see that it does work with the WLPG upload. However is there any way to get the names to display when you hover over the person, like on Facebook?

Also, it dumps everything into keywords. WLPG has people tags and description tags. Is there a way to create a custom field in g2 for people tags and another field for description tags. Kind of like FB which as a field under the picture "In this photo: ....."

Thanks!