XMP Sidecar files

[asp (Alan Pater)]

@asp

Is there a published XMP schema that Adobe is using for these LR functions? Or would we need to derive them from actual sidecar files?

I found mention of the crs and crss schemas that Adobe appears to be using for this. I could add those to exiv2.

XMP namespaces are:

    xmlns:crss="http://ns.adobe.com/camera-raw-saved-settings/1.0/"
    xmlns:crs="http://ns.adobe.com/camera-raw-settings/1.0/"

But I have not found a published schema for all the properties yet. The individual properties could be derived from XMP files left lying around on the Internet, but better would be the official schema or at least sample XMP files that are licensed for Free Software use.