Meeting minutes
this meeting
nigel: we have a placeholder for the IR of TTML2 2nd Ed IR
… we have our fun issue of tts:direction
… next call is dedicated to that particular issue
… then TPAC planning is getting close
… then we have an agenda item for TTML Profile Registry
… but we haven't got the PR to process
Mike: the PR you did nigel was more important
… I see the issue that I have useful but not critical, I will get to it
nigel: we could decide to publish without waiting
Mike: I'll support that
nigel: I made a proposal a few weeks back about the header matter that we use and the use of /history
… it got thumbs ups but I want to turn it into a call for consensus
nigel: in AOB, we have a DST switch soon
… I made a proposal
… anything else
… ?
… no, let's move on
TTML2 2nd Ed
nigel: Glenn updated the IR earlier in the week
… sharing that his implementation passes all the validation tests
… he's moving on to the presentation tests next
… that's 1 implementation
… I don't know what's the likelihood of having a 2nd implementation
… it's getting to the point where we need to look into it
… I encourage everybody to look into that
… we'll review in 2 meetings
… there is a placeholder for tts:direction and tts:writingMode
pal: I read the entire thread
… and it comes down to the statement from Glenn
… that it cannot be mapped to CSS
… I'm preparing an example and if I'm proven wrong we can move on
cyril: I have a conflict next week
pal: I don't think it's going to work
nigel: not ideal ...
pal: we could push it back
nigel: I wondered if it was a topic to raise in the joint call with CSS
… they've thought about it carefully and we need to understand it
cyril: Glenn's presence is more important than mine
atai: AFAIK, pierre's goal was to reach a conclusion next week
… if you agree that we can have a tentative conclusion
… we should get an agreement with those in the call next week
nigel: we'll discuss with whoever is available next week
… and then discuss it with CSS
pal: I think without cyril present we won't be able to reach a conclusion
cyril: I'm sure you can reach a decision without me
pal: the results of the discussion will likely be implemented in imsc.js
… and I wouldn't want your colleagues to say they disagree with it
nigel: it is a complicated area that needs careful thought
… we need to unpack and understand why we are doing things differently from CSS
Virtual TPAC 2020 Planning
nigel: we need to solidify the set of topics we want to discuss in our joint meetings
… the APA discussion, they've invited us to that, so they will lead the discussion, we don't need to drive the agenda
… the CSS discussion, we have issue 140
… we've got the viewport unit issue in WebVTT
… and I will add TTML2 1211
… if anybody has any others, please add them in the next few days to issue 140
… and finally, we are tracking the joint meeting with MEIG and Media WG
… with issue 139
… the agenda for that is not yet there?
… there are 6 chairs
… we will need to select 1 chair driving the meeting
… and we need the chairs to come up with an agenda
nigel: I discussed with Chris and it's my job to distribute the information to this group
… I don't have an opinion about which chair should do it
… there are many joint meetings going on and not much for us
… happy if any chair steps in
… we scheduled that for 2h
… we expect several topics: data cue, text track cue end time, text track cue HTML api ...
… when there is api changes, we need to decide which group should do
… and given that we don't do much APIs, I think it'd be better done in the Media WG
… the other topic is exposing cues through MSE
… that's all from memory, let me confirm
… anything else?
… we don't have a group meeting scheduled at TPAC
cyril: we meet every week, TPAC or not TPAC
nigel: I have created issues for meetings on the 15th and 22nd
… for regular calls
<atsushi> summary on joint at https://github.com/w3c/ttwg/issues/141
nigel: but it does not mean we need to have them if they clash with other TPAC meetings
… if anybody has any clash, that's fine, let me know
… I'm proposing that the week of the TPAC breakout session, our meeting will clash and it's the week of the DST transition
… I'm proposing that we don't hold our meeting
cyril: fine with me
TTML Profiles Registry
nigel: the situation is: we have no open PR, we have 1 issue about the wrong edition of TTML1 being cited, there is a respec warning on the editor's draft
… because the version of respec has been deprecated
… and there is the other issue from Mike, about the MIME codecs parameters from ISOBMFF
… my proposal is to fix the edition and respec version
… and then publish the result of that as a new WG note
Mike: good to me
nigel: I will do the tweaks first and do the CfC over the reflector
Mike: they are clearly editorial, we could start the clock today
nigel: indeed
… just looked at the issue again, do we need to make that change (issue #77 in TTWG)
… the text in the profile registry under media type registration says : this updated registration supercedes the one in TTML1 1st ed after updated by TTML1 2nd ed
… the text is actually factually accurate
… however there is a reference from the profile parameter to the ttp:profile attribute
… and that should be updated to point to the 3rd edition
<nigel> > This updated definition supersedes the initial registration information specified in [TTML1-1e], Appendix C, as updated by [TTML1-2e], Appendix C.
Mike: the sentences that say "this text ought to be other there ..." is not relevant anymore
… it doesn't matter any more
… maybe then that is less editorial
nigel: we did not make normative change so far, so no need to republish with IANA
… if we do change this, there would be extra work
… I'm inclined to say that this is not so important
… we could publish without making this change
Mike: yes
… the changes we made are important
… we need to publish soon
nigel: agree
PROPOSAL: we publish the current ED of TTML Profiles Registry as a WG Note subject to editorial changes (e.g. update ReSpec)
nigel: any questions? comments? objections? approvals?
Mike: I support it
cyril: +1
<atsushi> +1
<atai> +1
Resolution: we publish the current ED of TTML Profiles Registry as a WG Note subject to editorial changes (e.g. update ReSpec)
nigel: we have a decision policy, 2 week period, if no objection, that resolution is a WG decision and we'll hand over to Atsushi
Adopt /history in place of Previous Version for all future publications #145
github: https://github.com/w3c/ttwg/issues/145
nigel: we have 2 thumbs up and it is my proposal
… it's about changing the header matter
… instead of having 'previous' link, we'll have a static link
… you'll be able to see the different editions, CR, PRs ...
… I'd like to propose that we do across every document we publish under /TR
… that is my proposal
… opened on Aug 20
… I would like to do a CfC now
… if there is no objection in 2 weeks, we'll have a decision
<atsushi> https://www.w3.org/TR/css-text-4/
atsushi: in some cases, for ex CSS, it lists multiple previous versions in the header part
… but usually we juste have only 1 previous version in our publications in TR space
… it's replacing this with /history link
SUMMARY: this proposal becomes a decision if no objection received by Oct 15th
AOB - DST switch
nigel: the plan is not to have a meeting on the 29th of october
… then on the 1st of nov, the DST switch happens in the US
… neither Europe nor USA will be in DST
… the person affected most is Atsushi
… because you don't have DST
atsushi: Europe change happens Oct 25th
… US on Nov 1st
… there is no meeting on 29th
cyril: the question is what is the time after everybody has switched
atsushi: I prefer alignment with DST
<atai> +1
nigel: the proposal is that for our meetings after Nov 1st, we keep the same local time in US and Europe
<atai> +1
nigel: this would make it 1h later in Japan
nigel: no objections
… the UTC time of the meeting will change, to be 1h later
Mike: it's much clearer to say we are locked to Boston time
nigel: I completely disagree on how to phrase it
Mike: as you wish
nigel: the effect on us all is that it's going to be the same exact time for all of us except Atsushi
nigel: meeting adjourned