[Digikam-devel] [digikam] [Bug 318530] add a mode that only writes changed meta data to sidecar files

[Christoph Anton Mitterer]

https://bugs.kde.org/show_bug.cgi?id=318530

--- Comment #4 from Christoph Anton Mitterer <calestyo at scientia.net> ---
Admittedly, I'm not that expert of XMP (or MWG)... just have had some glances
over them when they came out.... so I may be wrong.

AFAIK, the sidecar files are "specified" in Part 3, but little ist given about
them, especially no information about whether or how any merging is done when
metadata is found in multiple places - or at least I couldn't find anything:

While it says "Write the external file as a complete, well-formed XML document,
including the leading XML declaration."... this doesn't necessarily mean that
any Exif or what ever needed to be complete, does it? I wouldn't read it like
that.

Perhaps one should talk about this to them?!


You're right that there would be probably no way to denote the removal of a
field.

It's probable though, that my proposed usage is not standardised...
nevertheless... wouldn't it be the better way? If you agree, one could possibly
try to contact the standard editors on that issue.

Chris.

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