Examples

Total XMP blob size smaller than 64 KB

  <rdf:Description rdf:about=""
                   xmlns:GDepth="http://ns.google.com/photos/1.0/depthmap/"
                   GDepth:Mime="image/jpeg"
                   GDepth:Format="RangeInverse"
                   GDepth:Near="29.3"
                   GDepth:Far="878.7"
                   GDepth:Mime="image/png"
                   GDepth:Data="iVBORw0KGgoAAAANSUhEUgAAAtAAAAPACAYAAAA..." />

Total XMP blob size larger than 64 KB

  <rdf:Description rdf:about=""
                   xmlns:GDepth="http://ns.google.com/photos/1.0/depthmap/"
                   xmlns:xmpNote="http://ns.adobe.com/xmp/note/"
                   GDepth:Mime="image/jpeg"
                   GDepth:Format="RangeInverse"
                   GDepth:Near="29.3"
                   GDepth:Far="878.7"
                   GDepth:Mime="image/png"
                   GDepth:MeasureType="OpticalAxis"
                   GDepth:ConfidenceMime="image/png"
                   GDepth:Manufacturer="Primesense"
                   GDepth:Model="Carmine"
                   GDepth:Software="Tango 1.0"
                   GDepth:Units="mm"
                   xmpNote:HasExtendedXMP="36BE52D449F3E6B9760D7602FF75168D"/>

  and a possibly very large extended xmp section:

  <rdf:Description rdf:about=""
                   xmlns:GDepth="http://ns.google.com/photos/1.0/depthmap/"
                   GDepth:Data="iVBORw0KGgoAAAANSUhEUgAAAtAAAAPACAYAAAA..."
                   GDepth:Confidence="iVBORw0KGgoAAATNSUhEUgBAAtAAAACCA..." />