Re: [ANN] Topics for a media summit in Lyon in October

[Mauro Carvalho Chehab <mchehab+samsung@kernel.org>]

Em Fri, 16 Aug 2019 10:06:30 +0200
Hans Verkuil <hverkuil@xs4all.nl> escreveu:

> Rather then discussing topics for a meeting under the subject 'Lisbon'
> let's start a new thread referring to the right place :-)
> 
> I will try to organize a room, either during the ELCE or (if that doesn't
> work) perhaps on the Thursday afterwards. If that's going to be a problem
> for someone, please let me know.
> 
> I do need to know how many people I can expect. I have the following
> confirmed attendees (and please reply if you are not listed!):

I'm not planning to go to ELCE this year.

Regards,
Mauro

> 
> Alexandre Courbot <acourbot@chromium.org>
> Tomasz Figa <tfiga@chromium.org>
> Jacopo Mondi <jacopo@jmondi.org>
> Laurent Pinchart <laurent.pinchart@ideasonboard.com>
> Hans Verkuil <hverkuil@xs4all.nl>
> 
> I know there were more who mentioned on irc that they would attend,
> but it is easier to keep track if I have it in an email.
> 
> Topics posted under the previous thread:
> 
> Tomasz:
> 
> I would want to discuss various v4l2_buffer improvements, e.g.
> - DMA-buf import with plane offsets,
> - unifying the buffer structs for M and non-M formats,
> - ability to import different FDs with offsets for non-M formats if the
> layout matches driver expectations, etc.
> 
> Besides that, I would be interested in the general idea on handling
> complex cameras in the Linux kernel in spite of the remaining V4L2
> limitations, e.g.
> - combinatorial explosion of /dev/video nodes,
> - significant ioctl overhead,
> - huge amount of historical legacy making the driver and userspace
> implementations overly difficult and prone to repetitive mistakes,
> - the above also limiting the flexibility of the API - formats, frame
> rates, etc. set using distinct APIs, not covered by Request API, with
> non-failure "negotiation hell", etc.
> - lack of fences, etc.
> 
> Jacopo:
> 
> Apart from discussing libcamera and hope we could kickstart a review of
> its API, I would like to re-start discussing multiplexed stream support,
> but that would require Sakari to be there, something I'm not certain
> about. Sakari?
> 
> Alexandre:
> 
> If Collabora/Bootlin is there, I'd certainly want to discuss stateless
> codecs, in particular m2m codec helpers and finalize the specification
> in general.
> 
> Regards,
> 
> 	Hans



Thanks,
Mauro