<div dir="ltr">GStreamer relevant. There is no video player in digiKam. all is delegate to Phonon, which use GStreamer in background.<div><br></div><div>Typically it miss GStreamer codec on you computer.</div><div><br></div><div>Gilles Caulier</div></div><div class="gmail_extra"><br><div class="gmail_quote">2016-03-06 14:48 GMT+01:00 Karl Mistelberger <span dir="ltr"><<a href="mailto:karl.mistelberger@nefkom.net" target="_blank">karl.mistelberger@nefkom.net</a>></span>:<br><blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">I can play videos with digikam, but preview displays a black screen only and the following errors occur:<br>
<br>
(digikam:28840): GLib-GObject-CRITICAL **: g_object_set: assertion 'G_IS_OBJECT (object)' failed<br>
<br>
(digikam:28840): GStreamer-CRITICAL **: gst_element_set_state: assertion 'GST_IS_ELEMENT (element)' failed<br>
<br>
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<br>
digikam -version<br>
Qt: 4.8.6<br>
KDE: 4.14.9<br>
digiKam: 4.14.0<br>
<br>
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</blockquote></div><br></div>