Offer to Implement VAAPI/VDPAU support in mesa/etnaviv for the CODA VPU

[Luís Mendes]

Hi Lucas,

Ok, great, that's good news! I'll try it, but I still think that a
VDPAU/VAAPI driver would be nice to increase compatibility with standard
video player applications like VLC for instance.

I could give a try at developing a VDPAU or VAAPI driver... at some point I
may need to ask some details about mesa or inner driver workings, but that
would be it.

What is your opinion about having such a feature?

Regards,
Luís

On Wed, Nov 8, 2017 at 2:33 PM, Lucas Stach <l.stach at pengutronix.de> wrote:

> Am Mittwoch, den 08.11.2017, 14:24 +0000 schrieb Luís Mendes:
> > Yesterday I tried Fabio's tutorial for enabling the VPU with
> > gstreamer in console mode (https://imxdev.gitlab.io/tutorial/Decoding
> > _video_with_a_mainline_kernel_on_i.MX6/). It was beautiful to see the
> > i.MX6 playing a H.264 video smoothly in high definition.
> > Then I tried to achieve the same under X, but it wasn't possible
> > because drm is in use by X.
> >
> > That gave me the idea that implementing a functional VDPAU/VAAPI may
> > not be so far away and that I may be able to implement such
> > functionality in my spare time even if at a not so fast pace.
> >
> > What do you etnaviv guys say? Does it looks feasible?
>
> Just swap the kmssink at the end of the pipeline with a xvimagesink and
> be done with it. The only complication is that the armada driver
> exposes 2 XV adapters, one going to a KMS plane (not really functional
> on i.MX6) and one using the GPU accel path. You need to choose the
> right one by either configuring the right default in the xorg.conf or
> using the device parameter for the xvimagesink.
>
> Regards,
> Lucas
>
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