[digikam] [Bug 196672] Add new option to setup global preference about default album dating

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=196672

--- Comment #6 from caulier.gilles at gmail.com ---
This is the complexity of this kind of task : introduce changes which do not
have side effect with all workflow already used by DK users.

Typically the album date must be estimated, depending of the album contents.
Automatized date computation can fail in some cases. For ex :

- image has no date => we use file time stamp instead image metadata.
- album has video => currently Exiv2 video metadata do not work has expected.
We will return always the FS time stamp in this case.
- album has XMP sidecar => date can be extracted from this container and if
option is turned on from DK config pannel.
- ... and i forget certainly some other cases here...

So to compute the date album average can be complicated and can give a false
value. Batch processing this kind of task can introduce wrong date in album
properties from database.

To resume : it's not simple task. This is why this entry exist since a very
long time in bugzilla.

Gilles Caulier

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