Dear Maintainer,

I've upgraded the image management digikam, a kde application, which
relies on QT.

Digikam developers have switched from PNG to WEBP during the upgrade (I
think it was from 8.6.0 to 8.7.0). Since then some functions using WEBP
don't work. (The easiest way to reproduce is to check if digikam still
displays the "splash-screen" on startup.

In the bug I filed on digikam (https://bugs.kde.org/show_bug.cgi?id=509633)
the developers claim that they use QT libs for loading WEBP. QT does
support WEBP, only if support is added at compile time.

Would it be possible to do this?

I am not entirely shure that kimageformat6-plugins is the correct package
to file the bug against. There is simply too much kde and qt for me to
understand it.

Le mercredi 24 septembre 2025, 11:46:57 heure normale d’Europe centrale Marcus Hardt a écrit :

Hi,

Further Image Formats:
  JasPer ................................. no
  MNG .................................... yes
  TIFF ................................... yes
    Using system libtiff ................. yes
  WEBP ................................... yes
    Using system libwebp ................. yes

So I’m not sure what’s missing.

[1] https://buildd.debian.org/status/fetch.php?pkg=qt6-imageformats&arch=amd64&ver=6.9.2-3&stamp=1761474622&raw=0

I’ll comment on the upstream bug.


Happy hacking,
--
Aurélien

Le mercredi 24 septembre 2025, 11:46:57 heure normale d’Europe centrale Marcus Hardt a écrit :

Hi,

Further Image Formats:
  JasPer ................................. no
  MNG .................................... yes
  TIFF ................................... yes
    Using system libtiff ................. yes
  WEBP ................................... yes
    Using system libwebp ................. yes

So I’m not sure what’s missing.

[1] https://buildd.debian.org/status/fetch.php?pkg=qt6-imageformats&arch=amd64&ver=6.9.2-3&stamp=1761474622&raw=0

I’ll comment on the upstream bug.


Happy hacking,
--
Aurélien