[Bug 30557] winegstreamer broken with >=glib-2.32.0

https://bugs.winehq.org/show_bug.cgi?id=30557

--- Comment #106 from Rosanne DiMesio  ---
(In reply to Andrew Eikum from comment #104)
> Created attachment 52884 [details]
> winegstreamer: Use gstreamer threadpool API to create new Wine threads
>
> Improved version, which now uses the kernel32 threadpool API.

The patch fixes Oblivion, which formerly would hang on start unless I disabled
winegstreamer.

It also enables me to insert the two videos mentioned in bug 17448#c14 into
Powerpoint 2007, though they do not play. Without your patch, they can't even
be inserted.