[Bug 775698] vaapisink: wayland: mutter cannot import surface into a texture

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=775698

Nicolas Dufresne (stormer) <nicolas at ndufresne.ca> changed:

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                 CC|                            |nicolas at ndufresne.ca

--- Comment #8 from Nicolas Dufresne (stormer) <nicolas at ndufresne.ca> ---
(In reply to Víctor Manuel Jáquez Leal from comment #7)
> The problem is that mutter, in wayland, only imports EGL textures with color
> formats RGB and RGBA, but vaapisink asks to import a EGL texture with
> EGL_TEXTURE_Y_UV_WL.
> 
> As far as I understand, mutter cannot import these textures because COGL
> cannot handle them either.

That is not entirely correct. Weston synthesize this format using a shader. In
the end, you have two textures, Y as an R8, and UV as a GR88 and a shader is
used. The same action is done by cluttersink, which is using clutter/COGL, so
there is no reason why you can't implement that directly inside
gnome-shell/mutter. Plus, the code already exist.

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