[digiKam-users] Change in metadata engine

Marc Palaus marcpalaus at hotmail.com
Tue Nov 30 19:25:48 GMT 2021

Hi Gilles,

Both, in the metadata viewer, it is as if there was no metadata 
regarding keywords (only the face regions seem to be there), so the only 
references to keywords are in IPTC and EXIF. And in the tags hierarchy, 
the keywords appear as a play list, having lost its hierarchy (makes 
sense, since only XMP metadata stores hierarchy). Maybe the metadata was 
wrong all along, and only now digikam has read it correctly, but I 
suspect the way XMP metadata is interpreted changed between digikam 7.3 
and 7.4.

Also, I don't know if it's related or not, but pictures taken with 
iphones seem to be problematic since digikam 7.4, with metadata not 
being written correctly into the file. I suspect it's only those 
containing faces, but I can't say for sure. Even if you correct it 
manually in digikam, metadata is not saved correctly to XMP, and tags 
also appear as a flat list without hierarchy. I believe it correspond to 
this bug report: https://bugs.kde.org/show_bug.cgi?id=436286

I store all my metadata changes in the pictures themselves (which is 
synced with the metadata), and I use a sqlite database stored in the 
local hard drive. I am using digikam Build date: 30/11/21 10:27 (target: 
Debug) Rev.: 3d2d9c9df3d9b8940502e89b83d39ce74a335754 
that I installed via flatpak.

El 29/11/21 a les 23:55, Gilles Caulier ha escrit:
> Hi,
> Where did you see these changes exactly ? In the XMP metadata viewer 
> or the tags hierarchy from the right side bar ?
> The metadata engine is Exiv2 shared library, and yes, it has been 
> released to last 0.27.5. This can have an effect on metadata viewer 
> contents.
> Else, the tags hierarchy come from the database ? Wish dtatabse type 
> and version did you use exactly ?
> Best regards
> Gilles Caulier
> Le lun. 29 nov. 2021 à 23:42, Marc Palaus <marcpalaus at hotmail.com 
> <mailto:marcpalaus at hotmail.com>> a écrit :
>     Hi,
>     I noticed that today when I launched digikam (just updated via
>     flatpak),
>     a few pictures lost their hierarchy in the tags, and their tags
>     appeared
>     as being the same level. It happened to pictures that were not
>     modified
>     for 4 or 5 years. Has there been any change in the metadata engine,
>     possibly interpreting XML metadata differently than it used to
>     until now?
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