15:00:22 <RRSAgent> RRSAgent has joined #tt
15:00:22 <RRSAgent> logging to http://www.w3.org/2016/12/08-tt-irc
15:00:24 <trackbot> RRSAgent, make logs public
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15:00:26 <trackbot> Zakim, this will be TTML
15:00:26 <Zakim> ok, trackbot
15:00:27 <trackbot> Meeting: Timed Text Working Group Teleconference
15:00:27 <trackbot> Date: 08 December 2016
15:05:17 <nigel> Present: Glenn, Pierre, Nigel, Mike
15:05:21 <nigel> Regrets: Andreas
15:05:24 <nigel> Chair: Nigel
15:05:27 <nigel> scribe: nigel
15:06:19 <nigel> Topic: This Meeting
15:07:38 <nigel> nigel: For the agenda today we have the F2F meeting agenda, IMSC, TTML.
15:07:45 <nigel> ... AOB or points to prioritise today?
15:07:52 <nigel> group: no AOB
15:07:59 <nigel> Topic: F2F Planning
15:08:13 <nigel> -> http://www.w3.org/wiki/TimedText/F2F-jan-2017
15:09:05 <tmichel> tmichel has joined #tt
15:10:20 <nigel> nigel: From my discussions with David I don't expect any WebVTT topics. Any other
15:10:25 <nigel> ... goals for the meeting?
15:10:30 <nigel> group: [silence]
15:11:46 <nigel> nigel: Ok so in detail on the agenda, what will we have. TTML2 spatial and temporal
15:11:49 <nigel> ... refactoring?
15:12:01 <nigel> glenn: Yes, I've been focusing on spatial first, then I'll move onto temporal, and that
15:12:15 <nigel> ... will be available for review before the F2F. To give a hint, there's a new annex on
15:12:24 <tmichel> present+
15:12:28 <nigel> ... root container placement semantics.
15:12:32 <nigel> Present+ Thierry
15:12:58 <nigel> glenn: This will deal with various different aspect ratios, and some information being
15:13:20 <nigel> ... implied, where 0, 1, 2 or 3 things are specified, and dealing with over-specification
15:13:23 <nigel> ... in the case of 3.
15:14:01 <nigel> ... Then the tts:extent style at least on the tt element that defines the SAR, has two new
15:14:16 <nigel> ... values, contain and cover and in addition we upgraded from <length> to <measure>
15:14:27 <nigel> ... specifications that have new semantics.
15:15:17 <nigel> ... I also ended up adding a new section called style procedures in the section after
15:15:29 <nigel> ... style semantics so that I could reference those as common procedures from different
15:15:33 <nigel> ... places in the document.
15:17:35 <nigel> nigel: Thanks, for the temporal part I'd request a separate definition for ISD interval so
15:17:45 <nigel> ... that the concepts of style resolution and temporal resolution can be separated.
15:17:49 <nigel> ... I'll file an issue.
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15:19:02 <nigel> nigel: Editing the agenda now, is there anything for IMSC?
15:19:14 <nigel> pal: Nothing to add to the wiki agenda page right now. The goal will be to have a
15:19:32 <nigel> ... really good plan for what should go in IMSC 1.1, and how we can meet our milestone
15:19:35 <nigel> ... timelines.
15:20:01 <nigel> nigel: OK, any other things for the F2F agenda?
15:20:06 <nigel> group: nothing for now!
15:20:21 <nigel> nigel: OK I've updated the wiki page.
15:20:35 <nigel> Topic: IMSC
15:20:39 <nigel> action-489?
15:20:39 <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
15:20:39 <trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/489
15:20:56 <nigel> nigel: Thanks for updating the Unicode ticket Pierre!
15:21:02 <nigel> close action-489
15:21:02 <trackbot> Closed action-489.
15:21:35 <nigel> nigel: There's been no response so far to that comment.
15:21:55 <nigel> pierre: Thierry, you did great work getting a response on this ticket - while the iron is hot
15:22:09 <nigel> ... is there anything you can do to work your magic again so that we can advance that?
15:23:08 <nigel> ... Whatever you did last time worked great! I'm available to help resolve this now.
15:23:18 <nigel> Thierry: OK I'll try to repeat the trick using the same channel!
15:23:21 <nigel> Pierre: Thank you!
15:25:11 <nigel> Topic: TTML
15:25:22 <nigel> action-480?
15:25:22 <trackbot> action-480 -- Thierry Michel to Request schedule time for horizontal review of ttml2 -- due 2016-09-26 -- PENDINGREVIEW
15:25:22 <trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/480
15:31:11 <nigel> Pierre: Looking at the review feedback from David Baron and considering the features in
15:31:27 <nigel> ... TTML2 not supported by CSS, if they are widely needed for our applications then we
15:31:35 <nigel> ... should raise issues to get them supported.
15:31:37 <nigel> nigel: +1
15:32:31 <nigel> nigel: You've reminded me I have an action to raise an issue on CSS that I asked for
15:32:35 <nigel> ... feedback on.
15:33:01 <nigel> Pierre: We should communicate that TTML is part of the web platform and not a separate thing!
15:33:03 <nigel> nigel: +1
15:33:21 <nigel> Pierre: I'm glad that David was candid and provided substantial feedback.
15:34:07 <nigel> Action: nigel Post David Baron's feedback to the TTWG reflector
15:34:07 <trackbot> Created ACTION-490 - Post david baron's feedback to the ttwg reflector [on Nigel Megitt - due 2016-12-15].
15:35:17 <nigel> Thierry: I think I did action-480 - I will check and let you know.
15:35:22 <nigel> nigel: Ok I won't close it for now then.
15:35:33 <nigel> action-481?
15:35:33 <trackbot> action-481 -- Glenn Adams to Provide nigel with a list of new features in ttml2 to begin reviewing -- due 2016-09-26 -- PENDINGREVIEW
15:35:33 <trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/481
15:36:19 <nigel> nigel: This is done - I posted the description to TAG at https://github.com/w3ctag/spec-reviews/issues/138#issuecomment-261735004
15:36:42 <nigel> action-481: [Meeting 2016-12-08] Nigel notes that he did this and the description was posted at https://github.com/w3ctag/spec-reviews/issues/138#issuecomment-261735004
15:36:43 <trackbot> Notes added to action-481 Provide nigel with a list of new features in ttml2 to begin reviewing.
15:36:46 <nigel> close action-481
15:36:46 <trackbot> Closed action-481.
15:37:02 <nigel> action-486?
15:37:02 <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
15:37:02 <trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/486
15:37:21 <nigel> Thierry: That I did!
15:37:25 <nigel> close action-486
15:37:25 <trackbot> Closed action-486.
15:38:13 <nigel> nigel: Reminds group that we now have an issue to add a Security and Privacy section to TTML2.
15:39:10 <nigel> action-443?
15:39:10 <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
15:39:10 <trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/443
15:39:26 <pal> pal has joined #tt
15:39:51 <nigel> 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.
15:39:58 <nigel> action-462?
15:39:58 <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
15:39:58 <trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/462
15:40:12 <nigel> nigel: This looks like an easy action, just to add an issue on github...
15:40:19 <nigel> glenn: Actually it's not straightforward.
15:41:17 <nigel> .. If I recall, the ask was to indicate how IMSC1 features not in TTML1 are mapped into TTML2.
15:41:33 <nigel> .. I could see potential for mapping of ARIB features also, so it could be related to the previous issue also.
15:41:39 <nigel> s/issue/action
15:42:41 <nigel> nigel: On issues, https://github.com/w3c/ttml2/issues/225
15:43:40 <nigel> .. I was looking for a tidy definition of the temporal aspects only of an ISD. I found after
15:43:57 <nigel> ... I raised the issue that Appendix I has nicer text than what I referenced, so there seem
15:44:10 <nigel> ... to be two ways of saying similar things in the spec now, one better than the other.
15:44:14 <nigel> ... I will add that to the issue.
15:47:19 <nigel> nigel: By the way, thank you Glenn for helping resolve the question from Sylvain at Orange.
15:47:29 <nigel> ... It made me wonder if we should be rolling out a new version of TTML1 including the
15:47:41 <nigel> ... existing errata. I guess there's a process for doing that from time to time.
15:48:47 <nigel> Pierre: There's a subtle issue: showBackground="always" being the default can lead to
15:48:52 <nigel> ... the background showing all the time.
15:49:09 <nigel> glenn: I expect setting this to "whenActive" in an initial element will be a commonly used
15:49:13 <nigel> ... feature of TTML2.
15:50:12 <nigel> nigel: Can we issue a new version of TTML1 including the errata?
15:51:32 <nigel> thierry: We can create a new Proposed Edited Recommendation, and do a new review.
15:51:54 <nigel> ... We should collect as many errata for a certain time as we can and when we have a
15:52:05 <nigel> ... good number we can republish a PER.
15:52:22 <nigel> nigel: I think we may already have a critical number of those!
15:52:32 <nigel> thierry: If we think they are important enough then we should go for it.
16:02:17 <nigel> nigel: We're out of time for today, and also out of agenda. Thanks everyone, see you again same time next week! [adjourns meeting]
16:02:20 <nigel> rrsagent, make minutes
16:02:20 <RRSAgent> I have made the request to generate http://www.w3.org/2016/12/08-tt-minutes.html nigel
16:03:20 <nigel> Present- tmichel
16:03:46 <nigel> s/goals for the meeting/goals for the meeting, beyond what's currently on the wiki
16:04:01 <nigel> s/what will we have./what will we have?
16:05:20 <nigel> s/previous action also/previous action too
16:05:56 <nigel> rrsagent, make minutes
16:05:56 <RRSAgent> I have made the request to generate http://www.w3.org/2016/12/08-tt-minutes.html nigel
16:07:22 <nigel> ScribeOptions: -final -noEmbedDiagnostics
16:07:24 <nigel> rrsagent, make minutes
16:07:24 <RRSAgent> I have made the request to generate http://www.w3.org/2016/12/08-tt-minutes.html nigel