Re: [PATCH v2 0/6] MR3528: winegstreamer: Implement windows api frontend for file media sink.

[Rémi Bernon (＠rbernon)]

Rémi Bernon (@rbernon) commented about dlls/winegstreamer/media_sink.c:
> {
>      FIXME("iface %p, handler %p stub!\n", iface, handler);
>  return E_NOTIMPL;

You could probably implement `GetMediaTypeHandler` too, afaics it does the same as QueryInterface.