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

[GStreamer (GNOME Bugzilla)]

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

--- Comment #21 from Florent Thiéry <florent.thiery at ubicast.eu> ---
Getting back at the precise issue this ticket is about, GPU memory-wise, for
1080p:
- rpicamsrc takes 43 MB
- omxh264dec takes 28 MB
- omxh264enc takes 23 MB
- glimagesink takes 59 MB for I420, 46 MB for RGBA, 61 MB for YUY2

Which means that for philippe's pipeline, we have 130 MB of required GPU
memory, hence over 128 MB. It's possible to avoid it by raising the amount of
gpu_mem to e.g. 256.

Before closing this issue, isn't it possible to detect that the problem is in
fact a memory error "gst_gl_buffer_pool_alloc Could not create GL Memory" and
not "gst_gl_context_set_error: GL framebuffer status incomplete", which is less
explanatory ?

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