[Bug 723674] Make external sink(s) compatible with gst-gl

[GStreamer (bugzilla.gnome.org)]

https://bugzilla.gnome.org/show_bug.cgi?id=723674
  GStreamer | gst-plugins-gl | git

--- Comment #2 from Julien Isorce <julien.isorce at gmail.com> 2014-02-07 09:44:09 UTC ---
(In reply to comment #1)
> What is the problem with that? GL buffers should have the GL texture upload
> meta on them, which then allow e.g. cluttersink to get things into a texture.

The GL contexts have to shared to do that. Otherwise the texture that comes
from gst-gl would not be usable within the clutter gl context.

> 
> Same goes for custom application video sinks, or applications could also
> directly use the gst-plugins-gl API to handle the memory.

Yup. And at least for sharing it would need to create a GstGLContext to wrap
the clutter gl context.  (gst_gl_context_new (clutter_gl_context) , see
attached file)

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