https://bugs.freedesktop.org/show_bug.cgi?id=78297
--- Comment #7 from Christian König deathsimple@vodafone.de --- (In reply to comment #6)
[0x7f4358c28e98] avcodec decoder: Using VA API version 0.35 for hardware decoding. Bus Error (core dumped)
Oh! Well that's interesting. It's not an segmentation fault at all.
It means that the CPU can't properly access VRAM. Please provide full dmesg output.