Overlay Video on Wayland

[Scott Talbert]

On Tue, 8 May 2018, Nicolas Dufresne wrote:

>       >> Second, the window seems to be drawn in the wrong location. 
>       The
>       >> window
>       >> with the blue background and bouncing ball is shifted down
>       and to
>       >> the
>       >> right about 100 pixels of where it should be.  This doesn't
>       seem to
>       >> be a
>       >> problem with the coordinates passed to
>       >> gst_video_overlay_set_render_rectangle().  If I mess with
>       those
>       >> coordinates, I can see that the black window changes
>       position, but
>       >> the
>       >> blue window does not.
>
>       Do you have any further thoughts on this?  Do you see the same
>       issue with
>       the blue window being shifted?
> 
> 
> Sorry I never found the time. Though, a quick test would be to test on
> Weston and compare.

Interesting results.

On Fedora, when I run the demo under Weston, Weston crashes.

On Debian Unstable (in a VM), when I run the demo under Weston, it runs 
and the bouncing ball window is NOT offset.  So it seems that offset issue 
may be specific to gnome-shell.

Scott