(Perl) Get a Structure Property Value from XMP

Demonstrates how to open a JPG or TIF image file, access the XMP metadata, and fetch the value of a structure property, such as the Iptc4xmpCore:CiTelWork (found within the Iptc4xmpCore:CreatorContactInfo structure).

Chilkat Perl Downloads Perl Module for Windows, MacOS, Linux, Alpine Linux, Solaris

use chilkat();

# This requires the Chilkat API to have been previously unlocked.
# See Global Unlock Sample for sample code.

$xmp = chilkat::CkXmp->new();

# Load a JPG or TIF image file.
# Sample JPG's with XMP metadata may be found at:
# http://www.chilkatsoft.com/testData/xmp/sample1.jpg
# http://www.chilkatsoft.com/testData/xmp/sample2.jpg
# http://www.chilkatsoft.com/testData/xmp/sample3.jpg
$success = $xmp->LoadAppFile("sample1.jpg");
if ($success != 1) {
    print $xmp->lastErrorText() . "\r\n";
    exit;
}

print "Num embedded XMP docs: " . $xmp->get_NumEmbedded() . "\r\n";

# Assuming there is at least one, get the 1st.
# (There is typically never more than one, but theoretically it's possible.)
# xml is a Xml
$xml = $xmp->GetEmbedded(0);
if ($xmp->get_LastMethodSuccess() == 1) {

    $propVal = $xmp->getStructValue($xml,"Iptc4xmpCore:CreatorContactInfo","Iptc4xmpCore:CiTelWork");
    if ($xmp->get_LastMethodSuccess() != 1) {
        print "Not found." . "\r\n";
    }
    else {
        print $propVal . "\r\n";
    }

}
else {
    print $xmp->lastErrorText() . "\r\n";
}