Re: [PATCH v2 0/4] MR1707: winegstreamer: Implement IMediaObject_GetOutputType for WMV decoder.

[Zebediah Figura (＠zfigura)]

Zebediah Figura (@zfigura) commented about dlls/winegstreamer/unixlib.h:
>              WG_VIDEO_FORMAT_YUY2,
>              WG_VIDEO_FORMAT_YV12,
>              WG_VIDEO_FORMAT_YVYU,
> -
>            WG_VIDEO_FORMAT_IYUV, /* Identical to I420. */

We should map IYUV to WG_VIDEO_FORMAT_I420 rather than adding a new backend format.