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

[GStreamer (GNOME Bugzilla)]

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

--- Comment #2 from Hamid <hamidrjafari at gmail.com> ---
This is the output from playing the attached video sample. I had to ^C to send
signal since the system was in a state of trans: no key press worked, no click
captured, even the pointer froze intermittently for longer moments. If computer
got some time, it was killing and restarting plasmashell in a loop in that
window.

$ gst-launch-1.0 playbin uri=file:/media/hamid/Video/Loyverse/How\ to\ add\ an\
employee\ in\ Loyverse\ POS\ \[720p\].mp4 
Setting pipeline to PAUSED ...
Pipeline is PREROLLING ...
Got context from element 'vaapisink0': gst.vaapi.Display=context,
gst.vaapi.Display=(GstVaapiDisplay)"\(GstVaapiDisplayGLX\)\ vaapidisplayglx1";
Redistribute latency...
Got context from element 'playsink': gst.vaapi.Display=context,
gst.vaapi.Display=(GstVaapiDisplay)"\(GstVaapiDisplayGLX\)\ vaapidisplayglx1";
Redistribute latency...
Pipeline is PREROLLED ...
Setting pipeline to PLAYING ...
New clock: GstPulseSinkClock
WARNING: from element
/GstPlayBin:playbin0/GstPlaySink:playsink/GstBin:vbin/GstVaapiSink:vaapisink0:
A lot of buffers are being dropped.
Additional debug info:
gstbasesink.c(2901): gst_base_sink_is_too_late ():
/GstPlayBin:playbin0/GstPlaySink:playsink/GstBin:vbin/GstVaapiSink:vaapisink0:
There may be a timestamping problem, or this computer is too slow.
Got EOS from element "playbin0".
Execution ended after 0:01:58.510736978
Setting pipeline to PAUSED ...
Setting pipeline to READY ...
Setting pipeline to NULL ...
Freeing pipeline ...

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