https://bugs.winehq.org/show_bug.cgi?id=56712
--- Comment #8 from Rafał Mużyło galtgendo@o2.pl --- Actually, I'd say it's a 50/50 case - while gst-libav *might* be able to handle this, chances are it's handled by a bundled library (you can google about bink video).
In gstreamer 1.20, gst-libav is using external ffmpeg and that library can be built in too many ways wrt. picked codecs.