[Bug 58425] video/x-h264 alignment=au caps causes artifacts and crashes with "almost-aligned" streams

[WineHQ Bugzilla]

http://bugs.winehq.org/show_bug.cgi?id=58425

--- Comment #6 from Brendan McGrath  ---
One of the reasons I felt this was safe for Proton but not for upstream was
because I know 'h264parse' is always available with Proton. For upstream wine
however, it will require the user to install `gst-plugins-bad`.

Without 'h264parse' available, removing the 'au' alignment could make things
worse (I'll need to double check). But even so, there is probably a way to
check if 'h264parse' is missing and then fallback to 'au' alignment in that
scenario.

I'll look in to it.