Support more metadata namespaces (e.g. pmi, MiCamera, pur, apple-fi, illustrator, OPMedia… XMP prefix) available since GExiv2 0.12.2 requirement
Environment/Versions
- GIMP version: master
- Operating System: all
Description of the bug
Followup of #5863 (closed) for the support of various metadata namespace which currently output warning messages in stderr.
These are user-provided data, so we don't generate debug now anymore (cf. #5863 (closed)), but eventually we still want to support these.
Reproduction
Reproduction steps:
Result: this displays in stderr:
gimp_metadata_deserialize_text: No namespace info available for XMP prefix
pmi' gimp_metadata_deserialize_text: No namespace info available for XMP prefix
pur'
And I suppose these metadata are dropped (are they?).
Expected result: whatever these metadata means, we should ideally either support them properly or explicitly ignore them (e.g. if we decide they don't make sense when being imported/export into/from GIMP).