[Bug 753591] vaapi: encoders: implement "direct-uploading"

[GStreamer (GNOME Bugzilla)]

https://bugzilla.gnome.org/show_bug.cgi?id=753591

--- Comment #7 from Josep Torra Valles <n770galaxy at gmail.com> ---
(In reply to sreerenj from comment #5)
> (In reply to Víctor Manuel Jáquez Leal from comment #4)
> > I have pushed a branch, in my repository, with direct upload working:
> > 
> > https://github.com/ceyusa/gstreamer-vaapi/commits/753591
> 
> Please ask Josep Torra whether your branch giving better perfromance with
> his 4k encode test cases . If what we understood from the analysis done
> during gstconf is correct, then it supposed to give significant perfomance
> improvement while encoding non tiled surface.

We are not yet there, the change that this had been introduced causes dmabuf
and non dmabuf case go into the intel_encoder_end_picture ->
intel_encoder_check_yuv_surface ->  i965_image_processing path.

It's a relative improvement, but seems like the surface isn't created as a
tiled surface.

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