On Fri, Aug 16, 2019 at 4:29 PM Jacopo Mondi <jacopo@xxxxxxxxxx> wrote: > > Hi Alexandre, > > On Fri, Aug 16, 2019 at 02:52:13PM +0900, Alexandre Courbot wrote: > > On Wed, Aug 14, 2019 at 6:40 PM Laurent Pinchart > > <laurent.pinchart@xxxxxxxxxxxxxxxx> wrote: > > > > > > On Wed, Aug 14, 2019 at 05:35:48PM +0900, Alexandre Courbot wrote: > > > > That could be nice. Of course something more informal is also fine. > > > > Anyone else planning to attend? I suspect Laurent and people living in > > > > France might be there? > > > > > > I will, and so should the whole libcamera team. > > > > It seems to be confirmed that Tomasz and I will be attending. Maybe we > > can come with a list of topics to discuss for all people present? > > > > 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? 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 offets 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. Best regards, Tomasz > > Thanks > j > > > If Collabora/Bootlin is there, I'd certainly want to discuss stateless > > codecs, in particular m2m codec helpers and finalize the specification > > in general. > > > > > > > > > > > On Mon, Aug 12, 2019 at 4:28 PM Hans Verkuil wrote: > > > > > On 8/12/19 6:00 AM, Alexandre Courbot wrote: > > > > > > On Thu, Aug 8, 2019 at 9:55 PM Mauro Carvalho Chehab wrote: > > > > > >> Em Thu, 1 Aug 2019 09:34:00 -0300 Mauro Carvalho Chehab escreveu: > > > > > >>> Em Sun, 30 Jun 2019 13:44:04 -0300 Mauro Carvalho Chehab escreveu: > > > > > >>> > > > > > >>>> Hi all, > > > > > >>>> > > > > > >>>> We are organizing a media mini-summit in Lisbon to happen in September, > > > > > >>>> at the same week as the Linux Plumber Conference and the Kernel Summit. > > > > > >>>> > > > > > >>>> We're still discussing the details about that. > > > > > >>> > > > > > >>> Gently reminder. > > > > > >>> > > > > > >>> Right now, we have just one extra theme proposal from Sean: > > > > > >>> > > > > > >>> - possible dvb improvements. > > > > > >>> > > > > > >>> If we don't have more proposals, we may end skipping the Media > > > > > >>> Summit this year. > > > > > >> > > > > > >> It sounds that we won't have material to have a media summit this year. > > > > > >> So, let's cancel the media summit this year. > > > > > > > > > > > > Loosely related, but are there people planning to go to ELCE on > > > > > > 10/28-30? Tomasz and I may attend if there is a chance to discuss > > > > > > libcamera/V4L2 codecs. > > > > > > > > > > I'll be there and if there is enough interest in setting up a meeting > > > > > to discuss this, then I can ask the LF to set a room aside for us for, > > > > > say, half a day or so. > > > > > > -- > > > Regards, > > > > > > Laurent Pinchart
