Hi Hans, Em Tue, 22 Oct 2013 09:47:02 +0000 Hans Verkuil <hverkuil@xxxxxxxxx> escreveu: > Here is the final schedule. I moved a few topics around at the request of > Laurent and to make it a better fit for the break times. > > Please note that the LED topic has moved to a slightly later timeslot. > > > > We plan to start at 9:00 and we have the Glamis room until 18:00. > > The schedule is as follows: > > 9:00 Welcome/Introduction > > 9:10 Mauro Carvalho Chehab > > - Better integration between DVB and V4L2, including starting using the media > controller API on DVB side too. Michael requested to have this presentation on a latter time, in order for him to also participate on it. Also, as this is media controller related, I think it makes sense to have Laurent participating on those discussions. > > 30 min > > 9:40 Kieran Kunhya > > - (3G/HD-)SDI multiplexed raw format > > This is a professional interface used in broadcasting and CCTV. > The most serious issue is that many vendors provide Linux drivers with > V4L2 and ALSA - which is not acceptable for maintaining lipsync, let > alone maintaining the exact relationship between audio samples and > video that SDI provides. > > Some other issues are mentioned here: https://wiki.videolan.org/SDI_API/ > The wiki page has a very loose proposal for an API, though perhaps the > per-line idea is ambitious at this stage. Field or frame capture is > more realistic. > > 10:00 Break > > 10:30 Ricardo Ribalda Delgado, Sylwester Nawrocki > > - Support for multiple rectangle cropping > See thread: http://www.spinics.net/lists/linux-media/msg67824.html > > 10:50 Sylwester Nawrocki > > - LED flash support > > 11:10 Hans Verkuil > > - Colorspace: limited/full range > Draft presentation for all these topics: http://hverkuil.home.xs4all.nl/presentations/summit2013.odp > > 11:20 Hans Verkuil > > - VIDIOC_TRY_FMT shouldn't return -EINVAL when an unsupported pixelformat is provided, > but in practice video capture board tend to do that, while webcam drivers tend to map > it silently to a valid pixelformat. Some applications rely on the -EINVAL error code. > > We need to decide how to adjust the spec. I propose to just say that some drivers > will map it silently and others will return -EINVAL and that you don't know what a > driver will do. Also specify that an unsupported pixelformat is the only reason why > TRY_FMT might return -EINVAL. > > Alternatively we might want to specify explicitly that EINVAL should be returned for > video capture devices (i.e. devices supporting S_STD or S_DV_TIMINGS) and 0 for all > others. > > 11:40 Hans Verkuil > > - Decide on how v4l2 support libraries should be organized. There is code for > handling raw-to-sliced VBI decoding, ALSA looping, finding associated > video/alsa nodes and for TV frequency tables. We should decide how that should > be organized into libraries and how they should be documented. The first two > aren't libraries at the moment, but I think they should be. The last two are > libraries but they aren't installed. Some work is also being done on an improved > version of the 'associating nodes' library that uses the MC if available. > > 12:00 Lunch > > 13:00 Hans Verkuil > > - Define the interaction between selection API, ENUM_FRAMESIZES and S_FMT. See > this thread for all the nasty details: > > http://www.spinics.net/lists/linux-media/msg65137.html > > Also see my draft presentation (link above) for more info and proposals. I have a speech at LinuxCon Europe between 12:05 and 12:55. I should be on lunch after that. So, I'll likely miss this one. > 14:00 Laurent Pinchart > > - Status update regarding the media controller API usage on ALSA (Mauro likes to > know) and sharing i2c transmitters between V4L2 and DRM (Hans V. likes to know). > > 14:10 Sakari Ailus > > - Multi-format frames and metadata. Support would be needed on video nodes > and V4L2 subdev nodes. I'll prepare the RFC for the former; the latter has > an RFC here: http://www.spinics.net/lists/linux-media/msg67295.html > > 15:00 Break > > 15:30 Hugues Fruchet > > - How to handle codecs where part of the processing is done in HW and part in SW? > > 17:30 End > > > Note: these times are tentative. Some topics will take less time, some will take > more time. > > Regards, > > Hans > > _______________________________________________ > media-workshop mailing list > media-workshop@xxxxxxxxxxx > http://www.linuxtv.org/cgi-bin/mailman/listinfo/media-workshop Regards, -- Cheers, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
