[Bug 792034] dmabuf import with icamerasrc plugin does not working with gst-vaapi-1.12.2

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=792034

--- Comment #11 from Víctor Manuel Jáquez Leal <vjaquez at igalia.com> ---
Sorry for the delay.

I have a different proposal. I haven't tried it, but it is an idea:

Instead of using that hack, the gstreamer-vaapi elements will add, in the
propose_allocation() method's query, two allocators: the normal one for VAAPI
surfaces and another dmabuf-based.

Thus, when the icamerasrc processes the offered buffer pool, and dmabuf-import
is enabled, will look for the dmabuf-base allocator in the query, and will set
that allocator in the buffer pool configuration.

what do you think?

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