RE: Version 2: Tentative agenda for Helsinki mini-summit
> -Original Message- > From: Hans Verkuil [mailto:hverk...@xs4all.nl] > Sent: Monday, June 07, 2010 3:20 PM > To: Guennadi Liakhovetski > Cc: Hiremath, Vaibhav; linux-media@vger.kernel.org > Subject: RE: Version 2: Tentative agenda for Helsinki mini-summit > > > > On Mon, 7 Jun 2010, Hiremath, Vaibhav wrote: > > > >> > 14) V4L2 video output vs. framebuffer. Guennadi Liakhovetski. > >> > > >> [Hiremath, Vaibhav] Guennadi, > >> > >> Do you have anything in your mind on this? Are you preparing any slides > >> for this? Do you want me to have something from OMAP side which we can > >> use as a use-case? > > > > Yes, I will prepare some introduction, maybe a couple of slides. My > > impression is, that we shall be making all topics as short as possible, > > so, I'll try to make it concise, but I don't know exactly yet how much > > time we'd get. > > Concise would be good: the first day will be packed, so I prefer to have > short presentations, and a Q&A session afterwards in case there are things > that need clarification. But I think that on Tuesday we can talk a lot > more about this. I think this is a very relevant issue for embedded > systems. > > >> I can make couple of slides on this. > > > > In principle - yes, sure, I'd love you to present your use-case, but as I > > said - no idea whether we'll have time for this. So, definitely, would be > > great if you could comment on the topic, if we get time, slides would be > > great too, so, if it's not too complicated for you - please prepare them, > > but unfortunately I do not know yet whether we'll get a chance to go > > through them. In fact, I'm not quite sure how topics without an explicitly > > mentioned presentation should work - there would be some introduction in > > any case, right, Hans? Just not as long as a "proper presentation?" And > > the mentioned 10 minutes are only for the presentation, the discussion > > comes on top of that? So, I think, we should have time for your slides, > > Vaibhav, Hans can correct me if I'm wrong;) > > For simple topics a presentation is overkill and you can just say what the > status and/or plan is. For more complex issues a presentation helps to > understand the problems quicker. And yes, the discussion comes on top of > the presentation. > > The reason I want to keep the presentations short on Monday is that we > have some 15 topics or so to go through in, say, 7 hours. And of those 7 > hours one to two hours are reserved for anything to do with memory > handling. That does not leave a lot of time for the other 14 topics. > > Now, remember that on Tuesday and to a lesser extent on Wednesday we will > have more time to discuss some of these topics in more depth. And this > topic is one that deserves to be discussed more extensively. It would be > interesting to hear the views of several of the companies that have to > work with the framebuffer API: what are their experiences, ideas on how to > improve it, building a fb driver on top of a v4l driver, etc. > [Hiremath, Vaibhav] I completely aligned with this, I will prepare the slides and if we have time and need for this we can talk about it. Also I will have to prepare couple of slide presenting current status of OMAP drivers (for me it is Display Driver), should be re-used here. Thanks, Vaibhav > Regards, > > Hans > > -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
RE: Version 2: Tentative agenda for Helsinki mini-summit
> On Mon, 7 Jun 2010, Hiremath, Vaibhav wrote: > >> > 14) V4L2 video output vs. framebuffer. Guennadi Liakhovetski. >> > >> [Hiremath, Vaibhav] Guennadi, >> >> Do you have anything in your mind on this? Are you preparing any slides >> for this? Do you want me to have something from OMAP side which we can >> use as a use-case? > > Yes, I will prepare some introduction, maybe a couple of slides. My > impression is, that we shall be making all topics as short as possible, > so, I'll try to make it concise, but I don't know exactly yet how much > time we'd get. Concise would be good: the first day will be packed, so I prefer to have short presentations, and a Q&A session afterwards in case there are things that need clarification. But I think that on Tuesday we can talk a lot more about this. I think this is a very relevant issue for embedded systems. >> I can make couple of slides on this. > > In principle - yes, sure, I'd love you to present your use-case, but as I > said - no idea whether we'll have time for this. So, definitely, would be > great if you could comment on the topic, if we get time, slides would be > great too, so, if it's not too complicated for you - please prepare them, > but unfortunately I do not know yet whether we'll get a chance to go > through them. In fact, I'm not quite sure how topics without an explicitly > mentioned presentation should work - there would be some introduction in > any case, right, Hans? Just not as long as a "proper presentation?" And > the mentioned 10 minutes are only for the presentation, the discussion > comes on top of that? So, I think, we should have time for your slides, > Vaibhav, Hans can correct me if I'm wrong;) For simple topics a presentation is overkill and you can just say what the status and/or plan is. For more complex issues a presentation helps to understand the problems quicker. And yes, the discussion comes on top of the presentation. The reason I want to keep the presentations short on Monday is that we have some 15 topics or so to go through in, say, 7 hours. And of those 7 hours one to two hours are reserved for anything to do with memory handling. That does not leave a lot of time for the other 14 topics. Now, remember that on Tuesday and to a lesser extent on Wednesday we will have more time to discuss some of these topics in more depth. And this topic is one that deserves to be discussed more extensively. It would be interesting to hear the views of several of the companies that have to work with the framebuffer API: what are their experiences, ideas on how to improve it, building a fb driver on top of a v4l driver, etc. Regards, Hans -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
RE: Version 2: Tentative agenda for Helsinki mini-summit
On Mon, 7 Jun 2010, Hiremath, Vaibhav wrote: > > 14) V4L2 video output vs. framebuffer. Guennadi Liakhovetski. > > > [Hiremath, Vaibhav] Guennadi, > > Do you have anything in your mind on this? Are you preparing any slides > for this? Do you want me to have something from OMAP side which we can > use as a use-case? Yes, I will prepare some introduction, maybe a couple of slides. My impression is, that we shall be making all topics as short as possible, so, I'll try to make it concise, but I don't know exactly yet how much time we'd get. > I can make couple of slides on this. In principle - yes, sure, I'd love you to present your use-case, but as I said - no idea whether we'll have time for this. So, definitely, would be great if you could comment on the topic, if we get time, slides would be great too, so, if it's not too complicated for you - please prepare them, but unfortunately I do not know yet whether we'll get a chance to go through them. In fact, I'm not quite sure how topics without an explicitly mentioned presentation should work - there would be some introduction in any case, right, Hans? Just not as long as a "proper presentation?" And the mentioned 10 minutes are only for the presentation, the discussion comes on top of that? So, I think, we should have time for your slides, Vaibhav, Hans can correct me if I'm wrong;) Thanks Guennadi --- Guennadi Liakhovetski, Ph.D. Freelance Open-Source Software Developer http://www.open-technology.de/ -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
RE: Version 2: Tentative agenda for Helsinki mini-summit
> -Original Message- > From: linux-media-ow...@vger.kernel.org [mailto:linux-media- > ow...@vger.kernel.org] On Behalf Of Hans Verkuil > Sent: Sunday, May 30, 2010 1:46 PM > To: linux-media@vger.kernel.org > Subject: Version 2: Tentative agenda for Helsinki mini-summit > > Hi all, > > This is the second version of a tentative agenda for the Helsinki mini- > summit > on June 14-16. > > Please reply to this thread if you have comments or want to add topics. > > If you want to attend the summit then contact Sakari Ailus > (sakari.ai...@maxwell.research.nokia.com). We are very full already (over 20 > attendees), so I'm not sure if there is still room left. > > The overall layout of the summit is to use the first day to go through all > topics and either come to a conclusion quickly for the 'simple' topics, or > discuss enough so that everyone understands the problem for the more complex > issues. > > The second day will be used for in-depth discussions on those complex topics > and on the third day we will go through all topics again and translate the > discussions into something concrete like a time-line, action items, etc. > > We have a lot to discuss, so we almost certainly have to split the second > day > into two tracks, each discussing different topics. If we do split up, then > one > track will touch on the videobuf-related topics and the other on the > remaining > topics. > > The first day will also feature a few short presentations on various topics. > Presentations shouldn't be longer than, say, 10 minutes tops. Please keep > them > as short and to the point as possible. These presentations are meant to get > everyone up to speed quickly. Most of us have an extensive background in > video > hardware and the v4l subsystem, so you don't need to spend time explaining > things. > > After each topic I've put the names of the main developers active in that > area. > If you see your name, then make sure you know the status of that topic so > you > can explain it to everyone else. If I think it warrants a presentation, then > I > will mention that. Of course, if you disagree, or want/don't want to do a > presentation then just say so. It's a tentative agenda only. > > The topics below are in no particular order except for the first one. I am > very pleased that Qualcomm has joined this project so I think it would be > nice to start the meeting off with a presentation on their HW architecture. > > 1) Presentation on the Qualcomm video hw architecture. Most of us have no >experience with Qualcomm hardware, so I've asked Jeff Zhong to give a > short >overview of their video hardware. > > 2) Removal of V4L1: status of driver conversion in the kernel, status of >moving v4l1->v4l2 conversion into libv4l1. What needs to be done, when >will it be done and who will do it. Driver conversion: Hans Verkuil, >libv4l1 conversion: Hans de Goede. > > 3) videobuf/videobuf2: what are the shortcomings, what are the requirements > for >a 'proper' videobuf implementation, can the existing videobuf be fixed or > do >we need a videobuf2. If the latter, what would be needed to convert > existing >drivers over to a videobuf2. Related topics (custom/pluggable allocators, >out-of-order buffer dequeuing and per-buffer wait queues) will also be > part >of this topic. >Laurent Pinchart and Pawel Osciak with presentations. > > 4) Multi-planar support. Pawel Osciak. > > 5) Media Controller Roadmap. Laurent Pinchart has a presentation. > > 6) TO DO list regarding V4L2 core framework including the new control > framework. >Hans Verkuil. Will be a presentation. > > 7) Status of the Texas Instruments drivers: omapX (Laurent Pinchart/Hiremath > Vaibhav) >and DM (Sergio Aguirre). Probably should be a short presentation. > > 8) soc-camera status. Particularly with regards to the remaining soc-camera >dependencies in sensor drivers. Guennadi Liakhovetski. > > 9) Driver compliance. We need a framework for V4L2 driver compliance. Hans >Verkuil. > > 10) Discuss list of 'reference' programs to test against. Mauro Carvalho > Chehab. > > 11) Adopting old V4L1 programs and converting to V4L2. Hans de Goede? > > 12) Status of intel drivers. Xiaolin Zhang. > > 13) Remote Controllers. Presentation by Mauro Carvalho Chehab. > > 14) V4L2 video output vs. framebuffer. Guennadi Liakhovetski. > [Hiremath, Vaibhav] Guennadi, Do you have anything in your mind on this? Are you preparing any slides for this? Do you want me to have something from OMAP side which we can use as a use-case? I can make couple of slides on this. Thanks, Vaibhav > 15) A processing plugin API for libv4l. Hans de Goede. > See: http://www.mail-archive.com/linux- > me...@vger.kernel.org/msg18993.html > > It is my understanding that we will also have X11 and gstreamer experts on > hand. > Topics relating to that are welcome. > > During the memory handling brainstorming session earlier t
Re: Version 2: Tentative agenda for Helsinki mini-summit
On Sun, 2010-06-06 at 15:15 +0200, Hans Verkuil wrote: > We are also completely full. The substantial interest in this summit shows > how active the v4l community is, in particular in the area of embedded > systems. It does look interesting. Sorry I'll have to miss it. Regards, Andy -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
Re: Version 2: Tentative agenda for Helsinki mini-summit
Hi all, The only change to the agenda has been that after the Qualcomm presentation there will also be a short presentation from ST-Ericsson on their hardware. We are also completely full. The substantial interest in this summit shows how active the v4l community is, in particular in the area of embedded systems. If I've missed a topic or you want to add one, please contact me! The Saturday before the summit I'll post the final agenda and with all the topics in order. Note that I am also moving to a new apartment this month, so I'm not as often online as I normally am. Regards, Hans On Sunday 30 May 2010 10:15:59 Hans Verkuil wrote: > Hi all, > > This is the second version of a tentative agenda for the Helsinki mini-summit > on June 14-16. > > Please reply to this thread if you have comments or want to add topics. > > If you want to attend the summit then contact Sakari Ailus > (sakari.ai...@maxwell.research.nokia.com). We are very full already (over 20 > attendees), so I'm not sure if there is still room left. > > The overall layout of the summit is to use the first day to go through all > topics and either come to a conclusion quickly for the 'simple' topics, or > discuss enough so that everyone understands the problem for the more complex > issues. > > The second day will be used for in-depth discussions on those complex topics > and on the third day we will go through all topics again and translate the > discussions into something concrete like a time-line, action items, etc. > > We have a lot to discuss, so we almost certainly have to split the second day > into two tracks, each discussing different topics. If we do split up, then one > track will touch on the videobuf-related topics and the other on the remaining > topics. > > The first day will also feature a few short presentations on various topics. > Presentations shouldn't be longer than, say, 10 minutes tops. Please keep them > as short and to the point as possible. These presentations are meant to get > everyone up to speed quickly. Most of us have an extensive background in video > hardware and the v4l subsystem, so you don't need to spend time explaining > things. > > After each topic I've put the names of the main developers active in that > area. > If you see your name, then make sure you know the status of that topic so you > can explain it to everyone else. If I think it warrants a presentation, then I > will mention that. Of course, if you disagree, or want/don't want to do a > presentation then just say so. It's a tentative agenda only. > > The topics below are in no particular order except for the first one. I am > very pleased that Qualcomm has joined this project so I think it would be > nice to start the meeting off with a presentation on their HW architecture. > > 1) Presentation on the Qualcomm video hw architecture. Most of us have no >experience with Qualcomm hardware, so I've asked Jeff Zhong to give a short >overview of their video hardware. > > 2) Removal of V4L1: status of driver conversion in the kernel, status of >moving v4l1->v4l2 conversion into libv4l1. What needs to be done, when >will it be done and who will do it. Driver conversion: Hans Verkuil, >libv4l1 conversion: Hans de Goede. > > 3) videobuf/videobuf2: what are the shortcomings, what are the requirements > for >a 'proper' videobuf implementation, can the existing videobuf be fixed or > do >we need a videobuf2. If the latter, what would be needed to convert > existing >drivers over to a videobuf2. Related topics (custom/pluggable allocators, >out-of-order buffer dequeuing and per-buffer wait queues) will also be part >of this topic. >Laurent Pinchart and Pawel Osciak with presentations. > > 4) Multi-planar support. Pawel Osciak. > > 5) Media Controller Roadmap. Laurent Pinchart has a presentation. > > 6) TO DO list regarding V4L2 core framework including the new control > framework. >Hans Verkuil. Will be a presentation. > > 7) Status of the Texas Instruments drivers: omapX (Laurent Pinchart/Hiremath > Vaibhav) >and DM (Sergio Aguirre). Probably should be a short presentation. > > 8) soc-camera status. Particularly with regards to the remaining soc-camera >dependencies in sensor drivers. Guennadi Liakhovetski. > > 9) Driver compliance. We need a framework for V4L2 driver compliance. Hans >Verkuil. > > 10) Discuss list of 'reference' programs to test against. Mauro Carvalho > Chehab. > > 11) Adopting old V4L1 programs and converting to V4L2. Hans de Goede? > > 12) Status of intel drivers. Xiaolin Zhang. > > 13) Remote Controllers. Presentation by Mauro Carvalho Chehab. > > 14) V4L2 video output vs. framebuffer. Guennadi Liakhovetski. > > 15) A processing plugin API for libv4l. Hans de Goede. > See: http://www.mail-archive.com/linux-media@vger.kernel.org/msg18993.html > > It is my understanding that we will also have X11 and gstreamer experts on >
