Bug 160740 - digikam: handbook says that libgphoto2 is required but does not say whether it should be compiled with exif support
Summary: digikam: handbook says that libgphoto2 is required but does not say whether i...
Status: RESOLVED FIXED
Alias: None
Product: digikam
Classification: Applications
Component: Documentation (show other bugs)
Version: unspecified
Platform: Gentoo Packages Linux
: NOR normal
Target Milestone: ---
Assignee: Digikam Developers
URL:
Keywords:
Depends on:
Blocks:
 
Reported: 2008-04-12 11:25 UTC by esigra
Modified: 2022-12-24 16:17 UTC (History)
1 user (show)

See Also:
Latest Commit:
Version Fixed In: 0.9.4
Sentry Crash Report:


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Description esigra 2008-04-12 11:25:37 UTC
Version:           0.9.2-final (using KDE 3.5.8)
Installed from:    Gentoo Packages
OS:                Linux

The digikam handbook says at [help:/digikam/requirements.html] that libgphoto2 is required but does not say whether it should be compiled with exif support. The expected behaviour is to say which compile options are needed. The options are "doc exif hal nls".

Does digikam need libgphoto2 with exif support or does digikam somehow support exif on its own (maybe through libkexif)?
Comment 1 Marcus Meissner 2008-04-12 11:52:22 UTC
EXIF support is required for thumbnail retrieval on some libgphoto2 camera drivers. It is not mandatory, but well, you might not see thumbnails or the thumbnail extraction mighht be very slow.

Your choice in the end.
Comment 2 esigra 2008-04-12 12:35:58 UTC
I have used libgphoto2 without exif for a while and could retrieve thumbnails fine. The camera driver that seems to be used is ptp2. Maybe libgphoto can automatically select the exif option if a driver that needs it is compiled. Will --with-libexif=auto do that (or will it just automatically find if/where libexif is installed)?

Is there some other feature (such as auto rotation) that needs exif support in libgphoto2 or can it simply be omitted if thumbnail retrieval works fine without it?
Comment 3 caulier.gilles 2008-04-12 22:06:26 UTC
esigra,

For me, it's not relevant of digiKam if libgphoto2 need libexif to work fine. Also, it's relevant of packaging team to compile libgphoto2 on the right way.

Gerhard, 

what do you think about add a comment in handbook ?

Arnd,

The comment from Marcus in #1 is important : i remember few report in B.K.O about users who can't see thumbs in cameragui iconview...

Gilles Caulier

Comment 4 esigra 2008-04-13 00:35:30 UTC
The question that the digikam handbook should answer is whether libgphoto2 needs to be built with exif to do whatever digikam uses libgphoto2 for. For example:

"libgphoto2 needs to be built with exif to retrieve thumbnails to Digikam using any of the drivers X, Y and Z. If none of those drivers are used, Digikam can use libgphoto2 built without exif without loss of functionality."
Comment 5 caulier.gilles 2008-05-27 15:06:52 UTC
SVN commit 813343 by cgilles:

add note to handbook about libexif/libgphoto2 support
BUGS: 160740


 M  +4 -1      index.docbook  


WebSVN link: http://websvn.kde.org/?view=rev&revision=813343
Comment 6 esigra 2008-05-31 12:22:05 UTC
I read that text. I think "properlly" should be "properly".
Comment 7 caulier.gilles 2008-05-31 12:34:31 UTC
SVN commit 814805 by cgilles:

digiKam handbook : fix typo
CCBUGS: 160740


 M  +1 -1      index.docbook  


WebSVN link: http://websvn.kde.org/?view=rev&revision=814805