https://bugs.winehq.org/show_bug.cgi?id=40179
--- Comment #8 from Andrew Eikum aeikum@codeweavers.com --- (In reply to Rosanne DiMesio from comment #7)
With the patches I can insert a video and press play, but nothing plays; the window remains black. It also breaks playback in Powerpoint 2007.
Does running "wine regsvr32 winegstreamer.dll" help?