[PATCH v8 0/2] MR2471: winegstreamer: In video_processor, activate a videoflip converter.

[eric pouech (＠epo)]

The app I'm considering opens a video_processor on its own, with
a NV12 format on input and a ARGB32 format on output.

Tested on Windows: the samples are flipped vertically. While Wine
keeps them untouched.

So added a videoflip in the video processor to be activated when needed.
Current activation is based on RGB vs non RGB input/output formats.

Set as draft as if somehow related to MR!2159.
Comments welcomed.

Signed-off-by: Eric Pouech <epouech(a)codeweavers.com>

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  v8: winegstreamer: In video_processor, activate a videoflip converter.
      mf/tests: Add tests about (negative) stride handling.
 
https://gitlab.winehq.org/wine/wine/-/merge_requests/2471