[Digikam-users] Tags not written to XMP sidecar?

[Anders Kamf]

Hi,

Thanks for your reply Tobias! I'm afraid it doesn't solve the problem or
answers the questions though.

I indeed write meta data to JPG files, including tags, have done so since
2009 and it works very well. Sidecar files are created by digikam for files
it cannot write meta data into, e.g. video files, the settings was
described in my initial post. It is from those Filename.mp4.xmp or
Filename.mov.xmp I have tried with both exiv2 and exiftool to extract the
tags.

I'm moving files from my laptop to my server once I have done tagging etc
(laptop is used because I travel a lot). I usually use rsync, i.e. the move
is done outside digikam. The photo collection on my servers is accessed
with "another" digikam from a desktop PC (Windows) and from a stand alone
Ubuntu (both with setting "Read from sidecar files)". Both have their own
digikam database, hence all the meta data needs to travel with the files.

The main question, I'd guess, is whether to expect that the meta data of
the xmp file corresponds to the one of the jpg file in terms of tags,
rating etc.?

Regards
Anders


2016-05-22 15:31 GMT+02:00 Tobias Margiani <margianit at gmail.com>:

> Hi,
>
> I'm not sure if I understand your problem correctly. Are XMP files created
> but
> without (the right) content or are there no XMP files at all (you could
> check
> that with a file manager)?
> I don't use XMP files normally so there might be people who know all this
> better but from a few quick tests it looks like exiftool only reads xmp
> files
> if you pass them as argument directly and not if you try to read tags from
> an
> image file (e.g. if you have image.jpg and image.xmp you have to use
> "exiftool
> image.xmp" to read the tags). In my checks there is a "Tags List" entry
> showing the digikam tags.
> To comment on you problem when moving the files. If you only moved image
> files
> the metadata might indeed be lost but if you have moved the whole folder
> the
> xmp files could still be there! So check with a file manager. That the tags
> aren't read by digikam may result from your configuration. Are you sure
> that
> you've configured digikam to read metadata from sidecar files.
> Another source of this problem may be that you haven't configured digikam
> to
> write Tags into file at all. You can check in the metadata tab what
> information
> is written to the files.
>
> I hope some of this could help.
> Regards
> Tobias
>
> Am Samstag, 21. Mai 2016, 10:12:13 CEST schrieb Anders Kamf:
> > Hi!
> >
> > I have the setting "Write to sidecar files": "Write to XMP sidecar file
> for
> > read-only image only", which creates xmp sidecar files for the movie
> files
> > that are in my collection.
> > Now, I thought that this would mean that the tags applied to those movies
> > was written to the XMP sidecar file. But that seems not to be the case! I
> > now realise that at least neither exiv2 nor exiftool finds those tags.
> > Also, when I access the file from "another" digikam on another computer,
> no
> > metadata seems to be found.
> >
> > If this is true, it means that all metadata for those files have been
> lost
> > when I have moved the files outside Digikam (to another server), which
> > truly is a sad awakening.
> >
> > Is this the intended behaviour, or is it a bug? Or am I doing something
> > wrong (a user-fault...)?
> >
> > I'm using digikam 4.14.10 on Ubuntu 15.10.
> >
> > Best regards
> > Anders
>
>
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