https://bugs.kde.org/show_bug.cgi?id=388936
caulier.gil...@gmail.com changed:
What |Removed |Added
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CC| |caulier.gil...@gmail.com
--- Comment #1 from caulier.gil...@gmail.com ---
Can you give me a very good reason to provide a way to change the database
image format in thumbnail database ?
- PGF is used because it use wavelets compression to optimize space, quality,
speed.
- the other format support provided in digiKam core for thumbs database is
present for testing only. It's a legacy of test done many years ago when we
choose the right one.
- there is currently no mechanism to detect the thumb format stored in DB.
including this king of control will slow down the thumb extraction, and we
won't to complex this task.
For me PGF is prefect and there is no reason to changes it. The only possible
way to change the format id to use a new compression which provide a better
optimisation than PGF. Perhaps HEIF, WepP, or JPEGXR, but none provide an easy
to use through a small library under Linux as PGF. There are also patents
problem in background...
Gilles Caulier
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