[Bug 797355] overlaycomposition: Example crashes

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=797355

Sebastian Dröge (slomo) <slomo at coaxion.net> changed:

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                 CC|                            |slomo at coaxion.net

--- Comment #1 from Sebastian Dröge (slomo) <slomo at coaxion.net> ---
> Which means a second glbufferpool is created, without the video meta option. 

Why does this bufferpool not have the video meta option? That seems wrong :)

> Is it really necessary to make a new allocation query there? I commented it out and the example started to work :)

It's necessary unfortunately for correct negotiation in all cases. This is
basically the same code as in textoverlay. Can you reproduce the same crash
with textoverlay in the same pipeline?

> I think the video meta pointer should also be checked before being used.

What do you mean?

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