[Bug 759860] glfilters: Attach composition overlay when not supported

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=759860

Matthew Waters (ystreet00) <ystreet00 at gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |ystreet00 at gmail.com

--- Comment #4 from Matthew Waters (ystreet00) <ystreet00 at gmail.com> ---
(In reply to Florent Thiery from comment #0)
> The expected result is to see the timeoverlay on every cube face instead of
> the top left sink corner:
> 
> gst-launch-1.0 videotestsrc ! glupload ! timeoverlay ! glcolorconvert !
> glfiltercube ! glimagesink

This won't link at all...

> The expected result can be obained by moving timeoverly before glupload (but
> in that case, 
> gst-launch-1.0 videotestsrc ! timeoverlay ! glupload ! glcolorconvert !
> glfiltercube ! glimagesink

Correct

> Also, since actual timeoverlay rendering is left to the sink, why is the
> following failing to link (resulting in requiring a glcolorconvert element) ?
> gst-launch-1.0 videotestsrc ! glupload ! timeoverlay ! glfiltercube !
> glimagesink
> WARNING: erroneous pipeline: could not link timeoverlay0 to glfiltercube0
> 
> These issues are shared by textoverlay and timeoverlay.

The overlay rendering is not always left to the sink though.

> I created bug #759867

And what's the difference with this bug?

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