[Bug 786054] mapping vaapi buffer slow

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=786054

--- Comment #9 from Víctor Manuel Jáquez Leal <vjaquez at igalia.com> ---
(In reply to Thomas Scheuermann from comment #8)
> Hi,
> 
> in the vaapi driver ticket
> https://github.com/01org/intel-vaapi-driver/issues/274 is mentioned that
> vaGetImage is used in this case which seems to be slow.
> 
> How can here vaDeriveImage be used which should be faster?
> 
> Regards,
> Thomas

exporting the environment variable GST_VAAPI_ENABLE_DIRECT_RENDERING=1

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