https://bugs.winehq.org/show_bug.cgi?id=31836
--- Comment #28 from Andrew Eikum aeikum@codeweavers.com --- (In reply to Andrew Eikum from comment #27)
Created attachment 53379 [details] Update winegstreamer to 1.0, including better workaround for gst<1.7 bug
Thanks, Rosanne. The problem was caused by a bug that is fixed in gstreamer 1.7. I had a workaround for it in the patch, but it only fixed some situations. I've updated the workaround to be more robust, and this seems to fix the problem in PowerPoint for me. Can you try again?
Oh, note that pausing/restarting videos in powerpoint seems in poor shape. See Bug 30687. But I was at least able to get the video preview to work, and it worked in a slideshow if I didn't try to restart it after pausing.