[Bug 789835] New: Video playback on some applications brings system to a halt

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=789835

            Bug ID: 789835
           Summary: Video playback on some applications brings system to a
                    halt
    Classification: Platform
           Product: GStreamer
           Version: 1.12.3
                OS: Linux
            Status: NEW
          Severity: critical
          Priority: Normal
         Component: gstreamer (core)
          Assignee: gstreamer-bugs at lists.freedesktop.org
          Reporter: hamidrjafari at gmail.com
        QA Contact: gstreamer-bugs at lists.freedesktop.org
     GNOME version: ---

Previously filed a bug @ https://bugs.kde.org/show_bug.cgi?id=386284

After update to Kubuntu 17.10 video playback is buggy. On most video files
Gwenview brings the whole system to a halt, just leaves some seconds to
interact and kill the application to rescue the system or a warm reboot is
necessary.

This happens elsewhere as well e.g. previewing video in Dolphin. In contrast
VLC plays the videos smoothly and the system functions as usual. I guess some
updated backends are at fault.

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