[Bug 747297] gl: live rpicamsrc/omxh264dec/glimagesink pipeline fails

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=747297

--- Comment #12 from Florent Thiery <florent.thiery at ubicast.eu> ---
(In reply to Matthew Waters (ystreet00) from comment #11)
> "gles context that is bigger than the display size" - what does this mean?

I meant a pi plugged into a 1280x800 hdmi monitor; when booting, the GPU
initializes to 1280x800 (because of the edid); the pipeline Philippe described
automatically negociates to the source default resolution, which is 1920x1080,
and glimagesink apparently fails to create the context in these conditions. 

@philippe, what is the resolution of the monitor in your case ?

I'm still to find a way to simulate this, and i'm not entirely certain it is
the problem because setting the pi hdmi_mode to low resolution (640x480) does
not reproduce the issue.

It could also be a GPU memory limitation (since omx and rpicamsrc are both
using the gpu).

I'll try to find more about the issue conditions

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