{minutes} TTWG Meeting 2016-12-08

Thanks all for attending today's TTWG meeting. Minutes can be found in HTML format at http://www.w3.org/2016/12/08-tt-minutes.html

In text format:


   [1]W3C

      [1] http://www.w3.org/

                Timed Text Working Group Teleconference

08 Dec 2016

   See also: [2]IRC log

      [2] http://www.w3.org/2016/12/08-tt-irc

Attendees

   Present
          Glenn, Mike, Nigel, Pierre, Thierry

   Regrets
          Andreas

   Chair
          Nigel

   Scribe
          nigel

Contents

     * [3]Topics
         1. [4]This Meeting
         2. [5]F2F Planning
         3. [6]IMSC
         4. [7]TTML
     * [8]Summary of Action Items
     * [9]Summary of Resolutions
     __________________________________________________________

   <scribe> scribe: nigel

This Meeting

   nigel: For the agenda today we have the F2F meeting agenda,
   IMSC, TTML.
   ... AOB or points to prioritise today?

   group: no AOB

F2F Planning

   -> [10]http://www.w3.org/wiki/TimedText/F2F-jan-2017

     [10] http://www.w3.org/wiki/TimedText/F2F-jan-2017

   nigel: From my discussions with David I don't expect any WebVTT
   topics. Any other
   ... goals for the meeting, beyond what's currently on the wiki?

   group: [silence]

   nigel: Ok so in detail on the agenda, what will we have? TTML2
   spatial and temporal
   ... refactoring?

   glenn: Yes, I've been focusing on spatial first, then I'll move
   onto temporal, and that
   ... will be available for review before the F2F. To give a
   hint, there's a new annex on
   ... root container placement semantics.
   ... This will deal with various different aspect ratios, and
   some information being
   ... implied, where 0, 1, 2 or 3 things are specified, and
   dealing with over-specification
   ... in the case of 3.
   ... Then the tts:extent style at least on the tt element that
   defines the SAR, has two new
   ... values, contain and cover and in addition we upgraded from
   <length> to <measure>
   ... specifications that have new semantics.
   ... I also ended up adding a new section called style
   procedures in the section after
   ... style semantics so that I could reference those as common
   procedures from different
   ... places in the document.

   nigel: Thanks, for the temporal part I'd request a separate
   definition for ISD interval so
   ... that the concepts of style resolution and temporal
   resolution can be separated.
   ... I'll file an issue.
   ... Editing the agenda now, is there anything for IMSC?

   pal: Nothing to add to the wiki agenda page right now. The goal
   will be to have a
   ... really good plan for what should go in IMSC 1.1, and how we
   can meet our milestone
   ... timelines.

   nigel: OK, any other things for the F2F agenda?

   group: nothing for now!

   nigel: OK I've updated the wiki page.

IMSC

   action-489?

   <trackbot> action-489 -- Pierre-Anthony Lemieux to Update the
   unicode ticket 8915 with a link to the deltas between what we
   recommend and what is already in main and aux sets. -- due
   2016-12-08 -- PENDINGREVIEW

   <trackbot>
   [11]http://www.w3.org/AudioVideo/TT/tracker/actions/489

     [11] http://www.w3.org/AudioVideo/TT/tracker/actions/489

   nigel: Thanks for updating the Unicode ticket Pierre!

   close action-489

   <trackbot> Closed action-489.

   nigel: There's been no response so far to that comment.

   pierre: Thierry, you did great work getting a response on this
   ticket - while the iron is hot
   ... is there anything you can do to work your magic again so
   that we can advance that?
   ... Whatever you did last time worked great! I'm available to
   help resolve this now.

   Thierry: OK I'll try to repeat the trick using the same
   channel!

   Pierre: Thank you!

TTML

   action-480?

   <trackbot> action-480 -- Thierry Michel to Request schedule
   time for horizontal review of ttml2 -- due 2016-09-26 --
   PENDINGREVIEW

   <trackbot>
   [12]http://www.w3.org/AudioVideo/TT/tracker/actions/480

     [12] http://www.w3.org/AudioVideo/TT/tracker/actions/480

   Pierre: Looking at the review feedback from David Baron and
   considering the features in
   ... TTML2 not supported by CSS, if they are widely needed for
   our applications then we
   ... should raise issues to get them supported.

   nigel: +1
   ... You've reminded me I have an action to raise an issue on
   CSS that I asked for
   ... feedback on.

   Pierre: We should communicate that TTML is part of the web
   platform and not a separate thing!

   nigel: +1

   Pierre: I'm glad that David was candid and provided substantial
   feedback.

   <scribe> ACTION: nigel Post David Baron's feedback to the TTWG
   reflector [recorded in
   [13]http://www.w3.org/2016/12/08-tt-minutes.html#action01]

     [13] http://www.w3.org/2016/12/08-tt-minutes.html#action01]

   <trackbot> Created ACTION-490 - Post david baron's feedback to
   the ttwg reflector [on Nigel Megitt - due 2016-12-15].

   Thierry: I think I did action-480 - I will check and let you
   know.

   nigel: Ok I won't close it for now then.

   action-481?

   <trackbot> action-481 -- Glenn Adams to Provide nigel with a
   list of new features in ttml2 to begin reviewing -- due
   2016-09-26 -- PENDINGREVIEW

   <trackbot>
   [14]http://www.w3.org/AudioVideo/TT/tracker/actions/481

     [14] http://www.w3.org/AudioVideo/TT/tracker/actions/481

   nigel: This is done - I posted the description to TAG at
   [15]https://github.com/w3ctag/spec-reviews/issues/138#issuecomm
   ent-261735004

     [15] https://github.com/w3ctag/spec-reviews/issues/138#issuecomment-261735004

   action-481: [Meeting 2016-12-08] Nigel notes that he did this
   and the description was posted at
   [16]https://github.com/w3ctag/spec-reviews/issues/138#issuecomm
   ent-261735004

     [16] https://github.com/w3ctag/spec-reviews/issues/138#issuecomment-261735004

   <trackbot> Notes added to action-481 Provide nigel with a list
   of new features in ttml2 to begin reviewing.

   close action-481

   <trackbot> Closed action-481.

   action-486?

   <trackbot> action-486 -- Thierry Michel to Shortly after
   publishing the next ttml wd send the security questionnaire for
   horizontal review -- due 2016-11-10 -- PENDINGREVIEW

   <trackbot>
   [17]http://www.w3.org/AudioVideo/TT/tracker/actions/486

     [17] http://www.w3.org/AudioVideo/TT/tracker/actions/486

   Thierry: That I did!

   close action-486

   <trackbot> Closed action-486.

   nigel: Reminds group that we now have an issue to add a
   Security and Privacy section to TTML2.

   action-443?

   <trackbot> action-443 -- Glenn Adams to Prepare a document
   showing mapping arib ruby extension features to ttml2 for use
   as a liaison document to arib. -- due 2016-08-26 -- OPEN

   <trackbot>
   [18]http://www.w3.org/AudioVideo/TT/tracker/actions/443

     [18] http://www.w3.org/AudioVideo/TT/tracker/actions/443

   nigel: It would be good to do this prior to publishing the WD
   for wide review, so we can include it in the communications to
   ARIB.

   action-462?

   <trackbot> action-462 -- Glenn Adams to Create issue on ttml2
   to add "mapping from other versions and profiles of ttml" --
   due 2016-04-28 -- OPEN

   <trackbot>
   [19]http://www.w3.org/AudioVideo/TT/tracker/actions/462

     [19] http://www.w3.org/AudioVideo/TT/tracker/actions/462

   nigel: This looks like an easy action, just to add an issue on
   github...

   glenn: Actually it's not straightforward.
   ... If I recall, the ask was to indicate how IMSC1 features not
   in TTML1 are mapped into TTML2.
   ... I could see potential for mapping of ARIB features also, so
   it could be related to the previous action too.

   nigel: On issues, [20]https://github.com/w3c/ttml2/issues/225
   ... I was looking for a tidy definition of the temporal aspects
   only of an ISD. I found after
   ... I raised the issue that Appendix I has nicer text than what
   I referenced, so there seem
   ... to be two ways of saying similar things in the spec now,
   one better than the other.
   ... I will add that to the issue.
   ... By the way, thank you Glenn for helping resolve the
   question from Sylvain at Orange.
   ... It made me wonder if we should be rolling out a new version
   of TTML1 including the
   ... existing errata. I guess there's a process for doing that
   from time to time.

     [20] https://github.com/w3c/ttml2/issues/225

   Pierre: There's a subtle issue: showBackground="always" being
   the default can lead to
   ... the background showing all the time.

   glenn: I expect setting this to "whenActive" in an initial
   element will be a commonly used
   ... feature of TTML2.

   nigel: Can we issue a new version of TTML1 including the
   errata?

   thierry: We can create a new Proposed Edited Recommendation,
   and do a new review.
   ... We should collect as many errata for a certain time as we
   can and when we have a
   ... good number we can republish a PER.

   nigel: I think we may already have a critical number of those!

   thierry: If we think they are important enough then we should
   go for it.

   nigel: We're out of time for today, and also out of agenda.
   Thanks everyone, see you again same time next week! [adjourns
   meeting]

Summary of Action Items

   [NEW] ACTION: nigel Post David Baron's feedback to the TTWG
   reflector [recorded in
   [21]http://www.w3.org/2016/12/08-tt-minutes.html#action01]

     [21] http://www.w3.org/2016/12/08-tt-minutes.html#action01

Summary of Resolutions

   [End of minutes]
     __________________________________________________________


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Received on Thursday, 8 December 2016 16:09:09 UTC