preview of videos does not work

[Karl Mistelberger]

I can play videos with digikam, but preview displays a black screen only
and the following errors occur:

(digikam:28840): GLib-GObject-CRITICAL **: g_object_set: assertion
'G_IS_OBJECT (object)' failed

(digikam:28840): GStreamer-CRITICAL **: gst_element_set_state: assertion
'GST_IS_ELEMENT (element)' failed

---------------

digikam -version
Qt: 4.8.6
KDE: 4.14.9
digiKam: 4.14.0

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[Gilles Caulier-4]

GStreamer relevant. There is no video player in digiKam. all is delegate to Phonon, which use GStreamer in background.

Typically it miss GStreamer codec on you computer.

Gilles Caulier

2016-03-06 14:48 GMT+01:00 Karl Mistelberger <[hidden email]>:

I can play videos with digikam, but preview displays a black screen only and the following errors occur:

(digikam:28840): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed

(digikam:28840): GStreamer-CRITICAL **: gst_element_set_state: assertion 'GST_IS_ELEMENT (element)' failed

---------------

digikam -version
Qt: 4.8.6
KDE: 4.14.9
digiKam: 4.14.0

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[Karl Mistelberger]

Am 2016-03-06 15:06, schrieb Gilles Caulier:

> Typically it miss GStreamer codec on you computer.

GStreamer got lots of codecs:

karl@hofkirchen:~> rpm -qa|grep gstreamer
gstreamer-utils-1.6.3-65.3.i586
gstreamer-plugins-base-1.6.3-63.1.i586
gstreamer-plugins-bad-1.6.3-98.1.i586
gstreamer-1.6.3-65.3.i586
gstreamer-plugins-good-1.6.3-70.1.i586
PackageKit-gstreamer-plugin-1.0.3-13.1.i586
libgstreamer-1_0-0-1.6.3-65.3.i586
phonon-backend-gstreamer-4.8.0-2.4.2.i586
gstreamer-plugins-libav-1.6.3-3.1.i586
gstreamer-fluendo-mp3-21-5.3.1.i586
gstreamer-plugins-ugly-orig-addon-1.6.3-58.1.i586
gstreamer-plugins-qt-1.2.0-2.2.4.i586
gstreamer-plugins-ugly-1.6.3-58.1.i586

I thought gstreamer-plugins-good, gstreamer-plugins-bad or
gst-plugins-ugly would do the trick. So I am clueless what to search
for.

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[Karl Mistelberger]

Am 2016-03-06 15:06, schrieb Gilles Caulier:
> GStreamer relevant. There is no video player in digiKam. all is
> delegate to Phonon, which use GStreamer in background.
> Typically it miss GStreamer codec on you computer.

Had a closer look into the problem:
https://forums.opensuse.org/showthread.php/514128-Phonon-VLC-Backend-crashes-KDE-system-settings

Deleting gstreamer cache fixed the issue: rm -r ~/.cache/gstreamer-1.0/


Kind regards

Karl Mistelberger
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