https://bugs.freedesktop.org/show_bug.cgi?id=94471
--- Comment #6 from Andy Furniss adf.lists@gmail.com --- Mesa commit
commit 51227b41c6b026f5b0a3925093b91800cdfcc923 Author: Indrajit Das indrajit-kumar.das@amd.com Date: Fri May 27 18:27:15 2016 +0530
radeon/uvd: fix overflow error while calculating bit stream buffer size
gets rid of the errors and so mpv/mplayer will attempt to use uvd, but no video is displayed, just a black screen.