[digiKam-users] Slow raw processing

[Maik Qualmann]

If I remember correctly, we deactivated threads in libraw because Nikon NEF
files were incorrectly decoded. We can of course test whether the problem
has now been fixed in libraw.

Maik

Am Fr., 6. Nov. 2020 um 13:57 Uhr schrieb Gilles Caulier <
caulier.gilles at gmail.com>:

> yes OpenMp is supported :Parallelized demosaicing: Yes
>
> Try 7.2.0 beta2 appImage :
>
> https://files.kde.org/digikam/
>
> Best
>
> Gilles Caulier
>
> Le ven. 6 nov. 2020 à 12:14, Hans-Peter Huth <hans-ph at web.de> a écrit :
> >
> > On Fri, 6 Nov 2020 10:15:22 +0100
> > Gilles Caulier <caulier.gilles at gmail.com>
> > wrote:
> >
> > > Hi,
> > >
> > > Raw processing is delegate in digiKam to libraw (
> https://www.libraw.org)
> > >
> > > Libraw does not use video cards acceleration for compatibility and
> > > stability purposes, but uses openmp to parallelize demosaicing
> > > computation.
> > >
> > > openmp support is optional in libraw. If your digiKam is not compiled
> > > with openmp dependency, demosaicing will be processed on one core.
> > >
> > > Check in Help/Components Info dialog in digiKam if openmp support is
> > > enabled.
> > >
> >
> > digikam says:
> >
> > digikam version 7.1.0
> > CPU cores: 4
> > Eigen: 3.3.8
> > Exiv2: 0.27.3
> > Exiv2 supports XMP metadata: Yes
> > HEIF encoding support: Yes
> > ImageMagick codecs: 7.0.10
> > KF5: 5.75.0
> > LensFun: 0.3.95-0
> > LibCImg: 130
> > LibJPEG: 80
> > LibJasper: 2.0.19
> > LibLCMS: 2100
> > LibLqr support: Yes
> > LibPGF: 7.19.03
> > LibPNG: 1.6.37
> > LibRaw: 0.20.0
> > LibTIFF: 4.1.0
> > Marble: 0.27.20
> > Parallelized demosaicing: Yes
> > Qt: 5.15.1
> > Qt WebEngine support: Yes
> > Rajce support: Yes
> > VKontakte support: No
> > AkonadiContact support: Yes
> > Baloo support: Yes
> > Calendar support: Yes
> > DBus support: Yes
> > Database backend: QSQLITE
> > HTML Gallery support: Yes
> > LibAVCodec: 58.91.100
> > LibAVFormat: 58.45.100
> > LibAVUtil: 56.51.100
> > LibGphoto2: 2.5.26
> > LibOpenCV: 4.5.0
> > LibQtAV: 1.13.0
> > Media player support: Yes
> > Panorama support: Yes
> >
> > No OpenMP in the component info? But 'Parallelized demosaicing' and
> OpenCL
> > support are there. Is this something i should report to the packager?
> >
> > I can't crosscheck with the digikam-7.1.0-x86-64.appimage (and one
> > older appimmage) because it does not start ("unknown: Could not
> initialize
> > GLX")
> >
> > HP
> >
> > --
> > --------- 8< -------------
> > Why taunt me? Why upbraid me? I am merely a genius, not a god.
> > (Nero Wolfe)
> > Meine Bilder: http://jalbum.net/a/1456383
> > Berge: http://jalbum.net/de/browse/user/album/1823943
> >
> >
>
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