[Bug 769293] vaapi/gl : Uploading to GL texture optimization

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=769293

--- Comment #9 from Hyunjun Ko <zzoon at igalia.com> ---
(In reply to Víctor Manuel Jáquez Leal from comment #8)
> Hyunjun,
> 
> And important thing to notice is to tests your patches not only with
> glimagesink, but with clutter{auto}videosink (clutter-gst) which is the
> video sink used by totem and totem is an important user of gstreamer-vaapi.

Verified with clutterautovideosink.
Actually, it's working fine even without this patch, since cluttersink is using
only one texture. 


> I don't know. I don't thinks so. Perhaps in GstVaapiDisplay{GLX/EGL}
Agree, but we can create base method in GstVaapiDisplay like create_texture.

> > 3. If reconfigure happens, texture instances should be removed? If so, where?
> 
> Yes. Perhaps if the buffer to push has a different size of the current
> texture provider configuration, we should reset all the cached textures.
Agree. I'm going to find out where it does properly.

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