https://bugs.winehq.org/show_bug.cgi?id=48292
--- Comment #1 from Zebediah Figura z.figura12@gmail.com --- That's pretty much intentional, yes. The old WAVE, AVI, and MPEG-1 parsers were reimplemented on top of GStreamer's waveparse, avidemux, and mpegaudioparse plugins respectively. This allows us all the benefits of using external libraries, and to get rid of a good couple thousand lines of unmaintained, unoptimized, and not particularly well-functioning code.