https://bugs.winehq.org/show_bug.cgi?id=48230
--- Comment #8 from Zebediah Figura z.figura12@gmail.com --- I don't see any mention of winegstreamer in that log, which means that your Wine was probably built without it. If you don't have a winegstreamer.dll in your C:/windows/syswow64/ directory, that's definitely the case, and that needs to be fixed by your distribution's packagers.
I'm kind of surprised if it's the case, anyway, since GStreamer is and has always been a hard requirement for decoding plenty of other codecs.