https://bugs.freedesktop.org/show_bug.cgi?id=111236
--- Comment #10 from Michel Dänzer michel@daenzer.net --- (In reply to Julien Isorce from comment #9)
gst-launch-1.0 filesrc location=test.mp4 ! qtdemux ! h264parse ! vaapih264dec ! vaapipostproc ! videoconvert ! ximagesink
(with and without vaapipostproc)
With vaapipostproc, it crashes without the attached patch, but works with it.