https://bugs.winehq.org/show_bug.cgi?id=50440
--- Comment #24 from Rémi Bernon rbernon@codeweavers.com --- Yes, you will need GStreamer, and build wine with GStreamer development libraries to be able to decode most compressed audio / video streams (except a few older codecs which we have embeded).
For WMA you will also need to have GStreamer libav plugins and FFmpeg installed.
Previously WMA decoding was done in FAudio, but FAudio doesn't do anything itself, and it was also using GStreamer and FFMpeg. Probably your system distribution already built it with GStreamer support.
So can we consider this as resolved?