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Media summit in Lisbon at September

ANN Mauro Carvalho Chehab 9 participants 14 messages Jun 30, 2019 – Aug 27, 2019 Media (V4L/DVB)

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#0 lore raw

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.

In principle, it will be a free event for the ones registered to Linux Plumbers Conference, happening between Sept 9-11. They have a room available that we could use for the meeting on that period of time, but we need to adjust to avoid conflicts with other interesting micro-conferences that will happen in parallel (or eventually do it outside that period, but that would be harder to organize).

I'll let you know more details once we got it.

If you plan to attend, please let me know. It is open for all, but we'll have a limited number of seats. So, the earliest we get the number of interested people, the best.

-

At the last summit, we were supposed to do a Key Signing Party, but we end not doing it, due to lack of time. I suggest we add this again, but doing it earlier, in order to avoid getting out of time for doing it.

From my side, I'd like to discuss what criteria we should adopt for the code that comes via /drivers/staging/media, in particular:
how much time should we keep a code there that doesn't receive any patch addressing the drivers real issues (excluding codepatch, cleanups and kAPI changes)?

What other themes should be discussed?

Thanks,
Mauro

#1 lore raw

Hi Mauro,

Quoted 15 lines · Mauro Carvalho Chehab

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.

In principle, it will be a free event for the ones registered to Linux Plumbers Conference, happening between Sept 9-11. They have a room available that we could use for the meeting on that period of time, but we need to adjust to avoid conflicts with other interesting micro-conferences that will happen in parallel (or eventually do it outside that period, but that would be harder to organize).

Quoted 5 lines

I'll let you know more details once we got it.

If you plan to attend, please let me know. It is open for all, but we'll have a limited number of seats. So, the earliest we get the number of interested people, the best.

I'd like to attend.

Quoted 8 lines

-

At the last summit, we were supposed to do a Key Signing Party, but we end not doing it, due to lack of time. I suggest we add this again, but doing it earlier, in order to avoid getting out of time for doing it.

Quoted 7 lines

From my side, I'd like to discuss what criteria we should adopt for the code that comes via /drivers/staging/media, in particular:
how much time should we keep a code there that doesn't receive any patch addressing the drivers real issues (excluding codepatch, cleanups and kAPI changes)?

What other themes should be discussed?

Nothing from my side.

I wouldn't mind a brief chat with you about possible dvb improvements. I have started a few things already but it would be great to hear your ideas. Not sure this is interesting for the wider audience.

Thanks

Sean

#2 lore raw
In reply to Mauro Carvalho Chehab
Quoted 15 lines · Mauro Carvalho Chehab

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.

In principle, it will be a free event for the ones registered to Linux Plumbers Conference, happening between Sept 9-11. They have a room available that we could use for the meeting on that period of time, but we need to adjust to avoid conflicts with other interesting micro-conferences that will happen in parallel (or eventually do it outside that period, but that would be harder to organize).

Quoted 6 lines

I'll let you know more details once we got it.

If you plan to attend, please let me know. It is open for all, but we'll have a limited number of seats. So, the earliest we get the number of interested people, the best.

I'll be at LPC, and I'd like to attend the summit.

I don't have any specific topics in mind this time around.

Thanks,
Ezequiel

#3 lore raw
In reply to Mauro Carvalho Chehab

Em Sun, 30 Jun 2019 13:44:04 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 6 lines

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.

Regards,
Mauro

Quoted 28 lines

In principle, it will be a free event for the ones registered to Linux Plumbers Conference, happening between Sept 9-11. They have a room available that we could use for the meeting on that period of time, but we need to adjust to avoid conflicts with other interesting micro-conferences that will happen in parallel (or eventually do it outside that period, but that would be harder to organize).

I'll let you know more details once we got it.

If you plan to attend, please let me know. It is open for all, but we'll have a limited number of seats. So, the earliest we get the number of interested people, the best.

-

At the last summit, we were supposed to do a Key Signing Party, but we end not doing it, due to lack of time. I suggest we add this again, but doing it earlier, in order to avoid getting out of time for doing it.

From my side, I'd like to discuss what criteria we should adopt for the code that comes via /drivers/staging/media, in particular:
how much time should we keep a code there that doesn't receive any patch addressing the drivers real issues (excluding codepatch, cleanups and kAPI changes)?

Quoted 4 lines

What other themes should be discussed?

Thanks,
Mauro

Thanks,
Mauro

#4 lore raw
Quoted 8 lines · Mauro Carvalho Chehab

Em Sun, 30 Jun 2019 13:44:04 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 5 lines

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.

Quoted 7 lines
Quoted 1 line

We're still discussing the details about that.

Gently reminder.

Right now, we have just one extra theme proposal from Sean:

- possible dvb improvements.

TBH, this wasn't much of a proposal. I wanted to have a little chat about a way forward to remove dvb_attach with the hardware I have, and some minor ideas about code improvement. This certainly can be done over irc, and I do not think it would be very interesting to the wider group.

Quoted 2 lines

If we don't have more proposals, we may end skipping the Media Summit this year.

I enjoyed meeting everyone in Edinburgh and I'd like to go to Lisbon, but if we don't have anything to discus then that's that, I guess.

Sean

#5 lore raw
In reply to Mauro Carvalho Chehab

Em Thu, 1 Aug 2019 09:34:00 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 10 lines

Em Sun, 30 Jun 2019 13:44:04 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 6 lines

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.

Quoted 8 lines

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.

Regards,
Mauro

Quoted 35 lines

Regards,
Mauro

Quoted 30 lines

In principle, it will be a free event for the ones registered to Linux Plumbers Conference, happening between Sept 9-11. They have a room available that we could use for the meeting on that period of time, but we need to adjust to avoid conflicts with other interesting micro-conferences that will happen in parallel (or eventually do it outside that period, but that would be harder to organize).

I'll let you know more details once we got it.

If you plan to attend, please let me know. It is open for all, but we'll have a limited number of seats. So, the earliest we get the number of interested people, the best.

-

At the last summit, we were supposed to do a Key Signing Party, but we end not doing it, due to lack of time. I suggest we add this again, but doing it earlier, in order to avoid getting out of time for doing it.

From my side, I'd like to discuss what criteria we should adopt for the code that comes via /drivers/staging/media, in particular:
how much time should we keep a code there that doesn't receive any patch addressing the drivers real issues (excluding codepatch, cleanups and kAPI changes)?

What other themes should be discussed?

Quoted 7 lines
Quoted 2 lines

Thanks,
Mauro

Thanks,
Mauro

Thanks,
Mauro

#6 lore raw
Quoted 18 lines · Mauro Carvalho Chehab

Em Thu, 1 Aug 2019 09:34:00 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 14 lines

Em Sun, 30 Jun 2019 13:44:04 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 6 lines

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:

Quoted 7 lines
Quoted 4 lines

- 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.

#7 lore raw
Quoted 25 lines · Alexandre Courbot
Quoted 23 lines · Mauro Carvalho Chehab

Em Thu, 1 Aug 2019 09:34:00 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 18 lines

Em Sun, 30 Jun 2019 13:44:04 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 6 lines

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.

Quoted 6 lines
Quoted 2 lines

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,

Hans

#8 lore raw

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?

Quoted 41 lines · Hans Verkuil
Quoted 25 lines · Alexandre Courbot
Quoted 23 lines · Mauro Carvalho Chehab

Em Thu, 1 Aug 2019 09:34:00 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 18 lines

Em Sun, 30 Jun 2019 13:44:04 -0300
Mauro Carvalho Chehab <[email protected]> escreveu:

Quoted 6 lines

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.

Quoted 6 lines
Quoted 2 lines

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,

Hans

#9 lore raw
Quoted 3 lines · Alexandre Courbot

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.

Quoted 32 lines · Hans Verkuil
Quoted 31 lines · Alexandre Courbot
Quoted 20 lines · Mauro Carvalho Chehab
Quoted 19 lines

Em Thu, 1 Aug 2019 09:34:00 -0300 Mauro Carvalho Chehab escreveu:

Quoted 17 lines

Em Sun, 30 Jun 2019 13:44:04 -0300 Mauro Carvalho Chehab escreveu:

Quoted 6 lines

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.

Quoted 6 lines
Quoted 2 lines

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.

Signature · 3 lines
Regards,

Laurent Pinchart
#10 lore raw
Quoted 7 lines · Laurent Pinchart
Quoted 3 lines · Alexandre Courbot

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?

If Collabora/Bootlin is there, I'd certainly want to discuss stateless codecs, in particular m2m codec helpers and finalize the specification in general.

Quoted 38 lines
Quoted 26 lines · Hans Verkuil
Quoted 24 lines · Alexandre Courbot
Quoted 23 lines · Mauro Carvalho Chehab
Quoted 21 lines

Em Thu, 1 Aug 2019 09:34:00 -0300 Mauro Carvalho Chehab escreveu:

Quoted 9 lines

Em Sun, 30 Jun 2019 13:44:04 -0300 Mauro Carvalho Chehab escreveu:

Quoted 6 lines

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.

Quoted 8 lines

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.

Quoted 7 lines
Quoted 7 lines
Quoted 3 lines

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

#11 lore raw

Hi Alexandre,

Quoted 4 lines · Alexandre Courbot
Quoted 2 lines · Laurent Pinchart

On Wed, Aug 14, 2019 at 05:35:48PM +0900, Alexandre Courbot wrote:

Quoted 9 lines
Quoted 5 lines
Quoted 3 lines

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?

Thanks
j

Quoted 44 lines

If Collabora/Bootlin is there, I'd certainly want to discuss stateless codecs, in particular m2m codec helpers and finalize the specification in general.

Quoted 38 lines
Quoted 26 lines · Hans Verkuil
Quoted 24 lines · Alexandre Courbot
Quoted 23 lines · Mauro Carvalho Chehab
Quoted 21 lines

Em Thu, 1 Aug 2019 09:34:00 -0300 Mauro Carvalho Chehab escreveu:

Quoted 9 lines

Em Sun, 30 Jun 2019 13:44:04 -0300 Mauro Carvalho Chehab escreveu:

Quoted 6 lines

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.

Quoted 8 lines

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.

Quoted 7 lines
Quoted 7 lines
Quoted 3 lines

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

#12 lore raw
Quoted 14 lines · Jacopo Mondi

Hi Alexandre,

Quoted 10 lines · Alexandre Courbot
Quoted 7 lines · Laurent Pinchart
Quoted 3 lines · Alexandre Courbot

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.

Quoted 8 lines
Quoted 3 lines

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

Quoted 48 lines

Thanks
j

Quoted 44 lines

If Collabora/Bootlin is there, I'd certainly want to discuss stateless codecs, in particular m2m codec helpers and finalize the specification in general.

Quoted 38 lines
Quoted 26 lines · Hans Verkuil
Quoted 24 lines · Alexandre Courbot
Quoted 23 lines · Mauro Carvalho Chehab
Quoted 21 lines

Em Thu, 1 Aug 2019 09:34:00 -0300 Mauro Carvalho Chehab escreveu:

Quoted 9 lines

Em Sun, 30 Jun 2019 13:44:04 -0300 Mauro Carvalho Chehab escreveu:

Quoted 6 lines

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.

Quoted 8 lines

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.

Quoted 7 lines
Quoted 7 lines
Quoted 3 lines

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

#13 lore raw
In reply to Alexandre Courbot
Quoted 7 lines · Alexandre Courbot
Quoted 5 lines · Laurent Pinchart
Quoted 3 lines · Alexandre Courbot

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?

Quoted 8 lines
Quoted 1 line

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?

If Collabora/Bootlin is there, I'd certainly want to discuss stateless codecs, in particular m2m codec helpers and finalize the specification in general.

I can confirm that from Collabora that Boris, Ezequiel, Helen and I will be present.

Quoted 38 lines
Quoted 38 lines
Quoted 26 lines · Hans Verkuil
Quoted 24 lines · Alexandre Courbot
Quoted 23 lines · Mauro Carvalho Chehab
Quoted 21 lines

Em Thu, 1 Aug 2019 09:34:00 -0300 Mauro Carvalho Chehab escreveu:

Quoted 9 lines

Em Sun, 30 Jun 2019 13:44:04 -0300 Mauro Carvalho Chehab escreveu:

Quoted 6 lines

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.

Quoted 8 lines

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.

Quoted 7 lines
Quoted 7 lines
Quoted 3 lines

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