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Writing XMP Bag and contained information - MS Photo schema

To: pyexiv2-developers@xxxxxxxxxxxxxxxxxxx
From: Benjamin Henne <henne@xxxxxxxxxxxxxxxxxxxxx>
Date: Thu, 05 Jan 2012 22:48:02 +0100
User-agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.6; rv:8.0) Gecko/20111105 Thunderbird/8.0

Hi pyexiv2-developers,

I currently struggle with pyexiv2 and some complex XMP structures. It iscurrently possible to write such XMP using pyexiv2? I work on extendingexiv2 with two new namespaces which contain the needed XMP entries. Iadded the first to exiv2, it works using their CLI, but I cannot writeit using pyexiv2. Can you please help me answering the question if itmay be on pyexiv2's side or if the other (exiv2) side may not be complete.


I want to write a xmp struture like the following to file.
How can I do this using pyexiv2?

  <MP:RegionInfo rdf:parseType="Resource">
    <MPRI:Regions>
     <rdf:Bag>
      <rdf:li
       MPReg:Rectangle="0.661608, 0.244310, 0.130501, 0.261002"
       MPReg:PersonDisplayName="Baby Tux"/>
      <rdf:li
       MPReg:Rectangle="0.205615, 0.226100, 0.130501, 0.261002"
       MPReg:PersonDisplayName="Baby Gnu"/>
     </rdf:Bag>
    </MPRI:Regions>
   </MP:RegionInfo>

More on the extension of exiv2, the working CLI example and the notworking pyexiv2 code can be found athttp://dev.exiv2.org/boards/3/topics/1039#message-1043


Regards,
Benjamin