https://bugs.winehq.org/show_bug.cgi?id=48230
--- Comment #9 from belgix_oz@hotmail.com --- (In reply to Zebediah Figura from comment #8)
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.
You can close this ticket if GStreamer is now an hard requirement for wine. Gentoo offers choice of 3 audio backends for wine; ALSA, GStreamer or pulseaudio. My choice of using ALSA is based on fact that wine-staging is 1) the *only* 32-bit app on my linux box and 2) requires for ALSA backend, only 51 packages to recompile 32-bit. Recompiling pulseaudio 32-bit (which should not work too!) would add another 10 packages (but not too bad considering pulseaudio is my audio server). GStreamer, which I have installed 64-bit because "I have to", would require another 20 packages to re-compile 32-bit on top of the 60.
For no benefit at all, I would just keep using wine-staging 4.16 which fully fill my needs for now rather than recompiling 30'ish more 32-bit packages (just to be able to listen MPEG-I files which 4.16 does well).