- From: Nigel Megitt <nigel.megitt@bbc.co.uk>
- Date: Thu, 31 Aug 2023 15:52:53 +0000
- To: TTWG <public-tt@w3.org>
- Message-ID: <7B855CAD-8029-479C-805E-D833B256CEB5@bbc.co.uk>
Thanks all for joining today’s TTWG Teleconference, despite me sending the agenda out late – apologies!
Minutes can be found in HTML format at https://www.w3.org/2023/08/31-tt-minutes.html
We meet next at TPAC on 2023-09-11.
Those minutes in text format:
[1]W3C
[1] https://www.w3.org/
Timed Text Working Group Teleconference
31 August 2023
[2]Previous meeting. [3]Agenda. [4]IRC log.
[2] https://www.w3.org/2023/08/03-tt-minutes.html
[3] https://github.com/w3c/ttwg/issues/261
[4] https://www.w3.org/2023/08/31-tt-irc
Attendees
Present
Andreas, Atsushi, Chris, Cyril, Gary, Matt, Nigel,
Pierre
Regrets
none
Chair
Nigel
Scribe
nigel
Contents
1. [5]This meeting
2. [6]TPAC Planning
1. [7]Joint meetings
3. [8]IMSC-HRM
4. [9]DAPT
5. [10]Meeting close
Meeting minutes
This meeting
Nigel: TPAC planning
… IMSC-HRM
… DAPT
… Is any other business, or points to make sure we cover?
no other business
TPAC Planning
Nigel: This is our last call before we meet at TPAC
… Would be good to have as many agenda topics as needed for
Chairs to wrangle.
Github: [11]w3c/ttwg#262
[11] https://github.com/w3c/ttwg/issues/262
Nigel: Specific requested topics:
… To discuss webvtt issue 511 about metadata cue formats
… and
… Eric Carlson and Marcos Caceres asked for time to talk about
a Text Track Cue proposal they are planning to work on.
… That one is about cues that insert HTML fragments. I think
Pierre had some involvement with that
… several years ago.
… It's in the Safari Developer Preview and has been for a
while.
… Looks like they want to take it to the next stage and discuss
actual spec changes, and TTWG
… is one of the affected groups I think.
… They asked for it to be later in the day so US folk can dial
in. Eric will be there in person.
Gary: I will not be.
Nigel: Are there any other specific agenda topic requests right
now?
… The other two agenda topics that I recalled DAPT and IMSC-HRM
implementations
… As last year for DAPT I would hope to make some progress if
Cyril is present.
Cyril: I will not be there in person but can wake up early to
join discussions.
… The Media WG meets from 1400-1900 (on whichever day of the
week) to accommodate people on the West Coast.
Gary: I just checked - they meet on Monday afternoon, and MEIG
meets on Monday morning.
Nigel: I don't think I've received feedback on DAPT or IMSC-HRM
yet
Pierre: I've had some interest from folks who want me to bug
them in September.
… One major platform ran imschrm on a big part of their
library.
… It turns out that a bunch of their IMSC documents were
actually invalid.
… We're in the process of making sure that all the failures
were not due to HRM failures.
Cyril: Syntactically?
Pierre: Yes, they were invalid syntactically - all the failures
were not HRM related.
Nigel: Were they the sort of syntax errors you might expect to
be valid reasonably?
Pierre: One of the issues was that 29.97 framerate content had
frame counts of 30 occasionally.
… We're working through that.
… I expect mid-late September to have additional results.
Nigel: Does that mean we have no IMSC or IMSC-HRM topics for
TPAC?
Pierre: I'm not aware of anything.
Andreas: One more possible topic. Currently some standards orgs
are working on liaisons that may
… reach TTWG and cause an agenda topic. We can decide when it
arrives.
Nigel: Thank you for the warning.
… In that case we have a small number of topics for the Chairs
to arrange into a schedule.
… Thanks all.
… Anything else on TPAC planning?
Joint meetings
Nigel: On the Monday 11:50-12:35 Spanish time, joint between
TTWG, MEIG and (I thought) Media WG.
… Chris has put together an agenda for the whole MEIG session,
still a little fluid in terms of the details on the slides.
[12]MEIG agenda slides
[12] https://docs.google.com/presentation/d/1sadWsW1NZkfjlUdZ5FkXa_taUCzp1jyBNtemqY2WXgE/edit?usp=sharing
Gary: We had previously brought up a discussion about the Text
Track API but
… I don't think anyone is ready to talk about that because I
think,
… especially because of my circumstances, it fell on the floor.
Nigel: Yes, that is a shame, however the Text Track Cue API
discussion might help that along potentially.
Gary: Yes, that definitely covers a portion of our big ideals.
Nigel: Let us know if there's anything else to discuss in that
joint meeting.
… The next joint call we have is on the Thursday afternoon,
with APA and MEIG, 14:30-16:30 Spanish time.
… Chris previously put together a short agenda of bullet points
which I think we've circulated here before.
… I don't have it to hand right now.
… I propose we re-circulate that offline.
Chris: for the APA WG joint meeting, I have added the suggested
topics to [13]w3c/media-and-entertainment#95 (comment)
[13] https://github.com/w3c/media-and-entertainment/issues/95#issuecomment-1580622323
Nigel: I think we normally put together an agenda page that's
more easily consumable in one place by attendees
… so I should give myself the action to do that.
[14]Prepare agenda page for TPAC
[14] https://github.com/w3c/ttwg/issues/265
IMSC-HRM
Nigel: Pierre, you mentioned this at the front of the meeting.
Anything more to say?
Pierre: No, based on encouraging commitments I expect results
at the end of September.
Nigel: Great, thank you.
Pierre: Unless we discover that everyone has invalid IMSC
libraries! That would be a bigger issue.
… It is an issue because it makes testing the HRM difficult.
Nigel: There's a wider point here about the technical quality
of tools.
… I often see issues that need ironing out.
Pierre: Maybe there's an opportunity to make further progress
on fixing invalid file production.
[Pierre drops off the call]
DAPT
Nigel: I haven't seen anything over the last few weeks. Cyril,
have you?
Cyril: No, I stopped on this after the HR forms. I need to pick
it up again.
… You had some suggestions about the explainer, Nigel, which I
need to action.
… Maybe I could do the internationalisation request pointing to
the draft explainer and then fix it?
Nigel: I don't think the changes I suggested were huge.
Cyril: In that case I can do them today or tomorrow and then
make the request.
… Also I sent messages to studio contacts to see if they have
any opinions and can contribute comments.
… I don't know if it will lead to anything.
… I reached out to Disney, Warner, Apple, CableLabs and I think
one more.
Nigel: Would you be able to add those to the Outreach log on
the wiki page?
Cyril: Yes, I will.
Nigel: I also got around to contacting MESA today - thank you
to both Matt and Pierre for providing details.
… I added that to the Outreach log also.
… We have a bunch of open pull requests that need some work
too, most are for you Cyril, at least one is for me.
… For the time being though I haven't received any responses to
our liaisons other than acknowledgement, as far as I am aware.
… We asked for responses by 10th September.
Cyril: You will not get a response from MPEG - I can tell you
the request was received and reviewed,
… and no action taken.
Nigel: That's fine, we've done what we needed.
… I think I am expecting a response from ITU though, need to
check.
… I know they received the message and I think they discussed
it.
… Anything else to discuss re DAPT right now?
Cyril: I can't think of anything at the moment.
Meeting close
Nigel: We've completed our agenda, thank you everyone.
… Next meeting will be in Seville, see you there, in person or
remotely.
… [adjourns meeting]
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Received on Thursday, 31 August 2023 15:53:06 UTC