GstVideoOverlay, Gtk3 and Wayland

[Emmanuel Pacaud]

Hi,

Le sam. 20 août 2016 à 0:51, Olivier Crête 
<olivier.crete at collabora.com> a écrit :
> On Fri, 2016-08-12 at 15:02 +0000, Jan Alexander Steffens wrote:
>> On Fri, Aug 12, 2016 at 4:24 PM Emmanuel Pacaud 
>> <emmanuel.pacaud at lapp.in2p3.fr> wrote:
>>> When this application runs in a X11 session, everything works fine,
>>> like on the attached screenshot. But in a wayland session, the 
>>> video is
>>> displayed in a separate window, instead of being embedded in the 
>>> main
>>> application window.
>>> 
>>> My code is based on what is in the GstOverlayElement documentation, 
>>> in
>>> the GstVideOverlay and Gtk+ paragraph, which obviously doesn't 
>>> handle
>>> the wayland case. How are we supposed to proceed in this case ?
> 
> The other portable way is to use gtkglsink which has a property that 
> gives you a widget. Or you can use gtksink if you want 
> non-accelerated rendering (which will be a lot more CPU intensive). 
> This should work on both X and Wayland clients.

Thanks Olivier. I have ported my viewer to use gtk(gl)sink and it works 
perfectly now. I had a position issue when the gtksink widget was added 
to a GtkStack with interpolate-size property set to TRUE. Setting it to 
FALSE solved my issue. More details here:

https://bugzilla.gnome.org/show_bug.cgi?id=771427

Cheers,

	Emmanuel.