On 06/06/2023 11:57, Umang Jain wrote: > > Hi Hans, > > I am Umang and has been a contributor to libcamera. > > I would like to attend the media-summit remotely. I am not sure if I have to register anywhere or just ask you to add me to the remote attendees list. > > Umang Jain <umang.jain@xxxxxxxxxxxxxxxx> (Ideas On Board) That's all I need! I'll post instructions for the Webex meeting a few days before the summit starts. Regards, Hans > > Thanks! > > On 6/2/23 6:10 PM, Hans Verkuil wrote: >> Hi all, >> >> This is version 3 of the agenda for the media summit. As always, it >> is subject to change and all times are guesstimates! >> >> The media summit will be held at the Holiday Inn which is close to the >> conference centre where the Embedded Open Source Summit is held: >> >> Holiday Inn Prague Congress Centre - Meeting room "E" >> Na Pankráci 1684/ 15, 140 00 Praha 4-Nusle >> https://www.ihg.com/holidayinn/hotels/us/en/prague/prgnp/hoteldetail >> >> Refreshments (tea/coffee/soda) are available during the day. >> >> The meeting room is sponsored by Collabora and Cisco Systems Norway. >> And lunch is sponsored by Ideas On Board. >> >> Many thanks to the sponsors! >> >> In-Person Attendees: >> >> Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> (Intel) >> Kieran Bingham <kieran.bingham@xxxxxxxxxxxxxxxx> (Ideas On Board) >> Deborah Brouwer <deborahbrouwer3563@xxxxxxxxx> >> Mauro Carvalho Chehab <mchehab@xxxxxxxxxx> (Intel) >> Ricardo Ribalda <ribalda@xxxxxxxxxxxx> (Google) >> Marco Felsch <m.felsch@xxxxxxxxxxxxxx> (Pengutronix) >> Sebastian Fricke <sebastian.fricke@xxxxxxxxxxxxx> (Collabora) >> Martin Hecht <martin.hecht@xxxxxxxx> (Avnet) >> Jai Luthra <j-luthra@xxxxxx> (TI) >> Tommaso Merciai <tomm.merciai@xxxxxxxxx> (Avnet) >> Jacopo Mondi <jacopo.mondi@xxxxxxxxxxxxxxxx> (Ideas On Board) >> Andrzej Pietrasiewicz <andrzej.p@xxxxxxxxxxxxx> (Collabora) >> Laurent Pinchart <laurent.pinchart@xxxxxxxxxxxxxxxx> (Ideas On Board) >> Michael Roeder <michael.roeder@xxxxxxxx> (Avnet) >> Niklas Söderlund <niklas.soderlund@xxxxxxxxxxxx> (Ragnatech) >> Dave Stevenson <dave.stevenson@xxxxxxxxxxxxxxx> (Raspberry Pi) >> Martin Tůma <tumic@xxxxxxxxxx> (GPXSee) >> Stanimir Varbanov <stanimir.varbanov@xxxxxxxxxx> (Linaro, tentative, after 16:30 only) >> Hans Verkuil <hverkuil-cisco@xxxxxxxxx> (Cisco Systems Norway) >> Alain Volmat <alain.volmat@xxxxxxxxxxx> (ST Electronics) >> >> Remote Attendees: >> >> Nicolas Dufresne <nicolas@xxxxxxxxxxxx> (Collabora, tentative, afternoon only) >> Hsia-Jun Li <Randy.Li@xxxxxxxxxxxxx> (Synaptics) >> >> I will email details on how to join remotely a few days before the media summit >> starts. >> >> If you are listed as attendee (in person or remote) and you can't attend >> after all, please let me know. >> >> If you are listed as presenting a topic during the meeting, then please >> check if the details are correct. It would be really appreciated if you >> can post any slides you have before the meeting (just reply to this message >> with the presentation attached). >> >> Agenda: >> >> 8:45-9:15: get settled :-) >> >> 9:15-9:25: Hans: Quick introduction >> >> 9:25-10:15: Daniel Almeida: Rust V4L2 support >> >> Discuss the potential blockers as well as the roadmap and priorities for >> bindings. Present what is currently supported and what isn't in the Rust >> code for V4L2. Identify potential candidates for new drivers that can be >> written in Rust. Discuss about maintainership issues related to Rust in V4L2. >> >> 10:15-10:30: Break >> >> 10:30-11:15 Hans & Hsia-Jun Li: "Add extended fmt and buffer" patch series >> >> https://patchwork.linuxtv.org/project/linux-media/cover/20230206043308.28365-1-ayaka@xxxxxxxxxxx/ >> >> We've been postponing the work on this, but I think we need to decide how to >> proceed since pixel formats and single vs multi planar is getting to be a nightmare. >> >> More details from Hsia-Jun Li: >> >> 1. v4l2 header would only maintain the codec format and pixel format in bus. >> 2. the pixel formats would be maintained by the DirectRender, those M >> variant would not be supported in the new extend pixel format API. >> 3. The number of plane for a pixel format would also responds for its data >> layout. Ex. NV12 = 2 planes(luma, chroma), I420 = 3 planes(Y, U, V). >> 4. Userspace that supports new extend API could access those driver didn't >> adapt the new API, kernel would have a backward compatible layer. While >> the opposite backward compatible is not offered (old API userspace can't >> access the driver support the new API). >> >> [optional part] >> 5. An alloc flag would be introduced for allocating those M variant buf. >> https://lore.kernel.org/lkml/20230322105226.122467-1-randy.li@xxxxxxxxxxxxx/ >> 6. Stateless codec format would be a modifier to the stateful codec format. >> We could support different packing mode here. >> >> 11:15-11:30: Break >> >> 11:30-12:15: Andrzej Pietrasiewicz: Stateless Encoders: VP8 >> >> - Introduction to stateless encoders and previous work in this area >> >> https://github.com/bootlin/linux/tree/hantro/h264-encoding-v5.11 >> >> https://lore.kernel.org/linux-arm-kernel/20230309125651.23911-1-andrzej.p@xxxxxxxxxxxxx/T/ >> >> - High level decisions >> - Rate control >> - VP8 uAPI >> - Challenges >> >> 12:15-13:30: Lunch >> >> 13:30-14:00: Ricardo Ribalda Delgado: KCAM update >> >> I would like to share the progress on KCAM from our end. >> >> I am also trying to collect all the requirements that we are getting >> from vendors regarding V4L2. >> >> 14:00-14:45: Sakari: generic line-based metadata formats: >> >> https://lore.kernel.org/linux-media/20230505215257.60704-1-sakari.ailus@xxxxxxxxxxxxxxx/T/#t >> >> 14:45-??:??: Mauro & sub-maintainers: Subsystem development process >> >> How to improve it? How do we get more maintainers? It's not working very >> well at the moment. >> >> Mauro will present how the media CI works today. >> Hans will present how the daily build scripts work. >> >> Can this be harmonized? >> >> Final short topic: Hans: Should we keep the media summit together with the ELCE conference? >> Or organize it separately, and ask a company like Cisco, Intel or Collabora >> to organize a room. What would work best? Anything to improve on this? >> >> We have the room until 18:30, but (fingers crossed) I hope to finish before that. >> >> The "Add extended fmt and buffer" and the "Subsystem development process" are >> *very* hard to predict. I want to limit the initial discussion of the that first >> topic to 45-60 minutes, and continue (if needed) in the afternoon after the discussion >> about the subsystem development process. We will have see how it goes. >> >> Please reply with corrections, questions, etc. to this email. I'll update the agenda >> over time. >> >> Regards, >> >> Hans >
