[Bug 732281] new element: inteldmabufupload

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=732281

--- Comment #7 from Nicolas Dufresne (stormer) <nicolas.dufresne at collabora.co.uk> ---
(In reply to Julien Isorce from comment #6)
> Created attachment 311931 [details] [review]
> fix with tee
> 
> I do not really remember how to reproduce the problem but I think it was by
> adding a tee just before interdmabufupload :)
> I think the problem was that ->transform_ip was called instead of
> ->transform.
> I'll probably double check at some point but I wanted to keep the patch
> around.

It's nice, but it does not represent so well the reality. Dump Buffer are
vmalloc buffer, in real life, DMABUF are very often backed by CMA or Scatter
Gather allocator. The is vivi driver which do a better job here, as it supports
all of this along with many RGB and YUV variants. That being said, it's a
interesting toy for testing the basic.

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