Re: [linux-sunxi] Cedrus driver

From: Giulio Benetti
Date: Thu Nov 16 2017 - 07:31:09 EST


Il 16/11/2017 12:02, Maxime Ripard ha scritto:

I'm not sure why there's so many recipients (Russell, Rob or Mark have
a limited interest in this I assume), and why you're also missing some
key ones (like the v4l2 list).

added in cc linux-media mailing list that appears to be the right one for v4l2 and removed Russell, Rob and Mark

On Thu, Nov 16, 2017 at 11:37:30AM +0100, Giulio Benetti wrote:
Il 16/11/2017 11:31, Andreas Baierl ha scritto:
Am 16.11.2017 um 11:13 schrieb Giulio Benetti:

I'm wondering why cedrus has never been
merged with linux-sunxi sunxi-next.

Because it is not ready to be merged. It depends on the v4l2 request
API, which was not merged and which is re-worked atm.
Also, sunxi-cedrus itself is not in a finished state and is not as
feature-complete to be merged. Anyway it might be something for
staging... Has there been a [RFC] on the mailing list at all?

Where can I find a list of TODOs to get it ready to be merged?

Assuming that the request API is in, we'd need to:
- Finish the MPEG4 support
- Work on more useful codecs (H264 comes to my mind)
- Implement the DRM planes support for the custom frame format
- Implement the DRM planes support for scaling
- Test it on more SoCs

Or something along those lines.

Lot of work to do

I see it seems to be dead, no commit in 1 year.

Yes, because the author did this during an internship, which ended ...
Afaik nobody picked up his work yet.

That's not entirely true. Some work has been done by Thomas (in CC),
especially on the display engine side, but last time we talked his
work was not really upstreamable.

We will also resume that effort starting next march.

Is it possible a preview on a separate Reporitory to start working on now?
Expecially to start porting everything done by FlorentRevest to mainline,
admitted you've not already done.

since we need video acceleration on A20 and A33.


By the way, when you answer to google group, is it right that all CC I
inserted are not inserted too?
Because this causes mess with mailing lists (seems to me).

Yes, that's one of the many brain-damaged thing happening on that

Who can I ask to modify it?
Most of all, is it possible?


Giulio Benetti
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Advanced Research

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