http://bugs.winehq.org/show_bug.cgi?id=58647
--- Comment #5 from Rafał Mużyło galtgendo@o2.pl --- ...oh, wait...
I've found the bug I referred to. There module:DelayLoadFailureHook reported an explicit failure - there nothing like this in this log...
There's also this:
PE 73360000-73397000 Deferred mfplat PE 733b0000-733e6000 Deferred avfilter-lav-7 PE 73400000-73494000 Deferred swscale-lav-5 PE 734b0000-735b2000 --none-- lavvideo.ax
How much custom stuff related to video did you put in your prefix (either explicitly or via winetricks) ?