From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from perceval.ideasonboard.com ([213.167.242.64]:47006 "EHLO perceval.ideasonboard.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726646AbeJIDcI (ORCPT ); Mon, 8 Oct 2018 23:32:08 -0400 Subject: Re: [RFC] Informal meeting during ELCE to discuss userspace support for stateless codecs To: Hans Verkuil , Nicolas Dufresne , Maxime Ripard , Ezequiel Garcia , Mauro Carvalho Chehab Cc: Linux Media Mailing List References: From: Kieran Bingham Message-ID: Date: Mon, 8 Oct 2018 21:18:34 +0100 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-GB Content-Transfer-Encoding: 7bit Sender: linux-media-owner@vger.kernel.org List-ID: Hi Hans On 08/10/18 12:53, Hans Verkuil wrote: > Hi all, > > I would like to meet up somewhere during the ELCE to discuss userspace support > for stateless (and perhaps stateful as well?) codecs. > > It is also planned as a topic during the summit, but I would prefer to prepare > for that in advance, esp. since I myself do not have any experience writing > userspace SW for such devices. > > Nicolas, it would be really great if you can participate in this meeting > since you probably have the most experience with this by far. > > Looking through the ELCE program I found two timeslots that are likely to work > for most of us (because the topics in the program appear to be boring for us > media types!): > > Tuesday from 10:50-15:50 > > or: > > Monday from 15:45 onward > > My guess is that we need 2-3 hours or so. Hard to predict. > > The basic question that I would like to have answered is what the userspace > component should look like? libv4l-like plugin or a library that userspace can > link with? Do we want more general support for stateful codecs as well that deals > with resolution changes and the more complex parts of the codec API? > > I've mailed this directly to those that I expect are most interested in this, > but if someone want to join in let me know. Depending on time and availability I might like to join in on this. Consider me non-essential however and if I'm not around don't wait for me. I have a desire to work on the codecs for Renesas (although it seems unlikely to be possible due to licensing issues) > I want to keep the group small though, so you need to bring relevant experience > to the table. I can offer outdated experience managing the codec firmwares, and decode/encode stacks for the ST SDK2 player implementation. However that was 4 or 5 years ago - so I now deny all knowledge of knowing anything from back then :-) -- Regards Kieran