{agenda} TTWG Meeting 2017-01-26 from Nigel Megitt on 2017-01-24 (public-tt@w3.org from January 2017)

From: Nigel Megitt <nigel.megitt@bbc.co.uk>
Date: Tue, 24 Jan 2017 19:44:05 +0000
To: Timed Text Working Group <public-tt@w3.org>
Message-ID: <D4AD5EFA.355C1%nigel.megitt@bbc.co.uk>
This meeting is scheduled for up to 60m. Please be ready for a prompt start at 11:03am Boston time.

Once again, at the new time 1 hour later than the "old" time

Our teleconference is scheduled with reference to Boston Time, the correct time of this teleconference in your locale may change.

Check https://www.timeanddate.com/worldclock/fixedtime.html?iso=20170126T11&p1=43

Thursdays 11:03am-12:00pm (or from 10:00am for 2 hour meetings) Boston local

Joining details:

see https://lists.w3.org/Archives/Member/member-tt/2016Oct/0009.html
(members-only link – if you can't see this and wish to join please contact me)

Agenda+ Assign Roles

Chairs: Nigel Megitt

Scribe: usually Nigel – open to offers!

Regrets: none

Activity since last meeting:
See individual agenda items for recent activity on specific products

Cross-product TTWG board: http://www.w3.org/AudioVideo/TT/board/
We are still using tracker for actions unrelated to issues.
Please do not add or modify issues in tracker!

IMSC: https://github.com/w3c/imsc/pulse
TTML1: https://github.com/w3c/ttml1/pulse
TTML2: https://github.com/w3c/ttml2/pulse
TTML Profile Registry: https://github.com/w3c/tt-profile-registry/pulse
TTML-WebVTT mapping: https://github.com/w3c/ttml-webvtt-mapping/pulse
WebVTT: https://github.com/w3c/webvtt/pulse

Agenda+ Prioritise discussion for this meeting and look ahead

Check-point for order of topics – I'd suggest, subject to reordering:
1. IMSC (now incorporates Unicode ticket)
2. TTML issues, actions, PRs etc
3. Profiles registry
4. TTML and WebVTT mapping document
5. Progress on HTMLCue proposal
6. WebVTT comments
7. AOB – please notify of any other AOB now!


Reminder re future milestones and meetings:

January Meetings:

Thursday 26th January: TTWG phone meeting 1 hour

Further ahead:

Thursday 2nd February: TTWG phone meeting 1 hour
Thursday 9th February: TTWG phone meeting 1 hour
Thursday 16th February: TTWG phone meeting 1 hour
Thursday 23rd February: TTWG phone meeting 1 hour

IMSC 2 and TTML2 publication events: see the timeline of upcoming work at https://www.w3.org/wiki/TimedText/Publications#Timeline_of_TTML2_and_IMSC2_work


Agenda+ IMSC (now incorporates Unicode ticket)

IMSC 1.1 update

Unicode CLDR discussion
Unicode ticket is at http://unicode.org/cldr/trac/ticket/8915
Pierre's response to the recent update is at http://unicode.org/cldr/trac/ticket/8915#comment:9
Email response from Shervin at Unicode https://lists.w3.org/Archives/Public/public-tt/2016Dec/0018.html

Merged pull requests: none
Open pull requests:
Clarify relationship with current REC <https://github.com/w3c/imsc/pull/202>
Stub to support the current ED link found in the IMSC1 REC <https://github.com/w3c/imsc/pull/205>
Add support for fillLineGap and optional features<https://github.com/w3c/imsc/pull/200>
New or discussed issues:
IMSC1 RED does not point to the ED<https://github.com/w3c/imsc/issues/204>
Scope should specify relationship with current REC<https://github.com/w3c/imsc/issues/201>
Add support for fillLineGap and optional features<https://github.com/w3c/imsc/pull/200> <https://github.com/w3c/imsc/issues/204>
Closed issues:
Create a gh-pages branch for serving the Editor's Drafts<https://github.com/w3c/imsc/issues/187>
Error in Example 6<https://github.com/w3c/imsc/issues/203>

New link: Editor's draft is directly viewable at http://w3c.github.io/imsc/imsc1/spec/ttml-ww-profiles.html
IMSC Implementation Page: https://www.w3.org/wiki/TimedText/IMSC1_implementation_page.

Agenda+ TTML1 & TTML2 issues, actions, PRs, editorial actions etc

Horizontal Review:

CSS Review of TTML2, threads: FW: TTML2 horizontal review with CSS<https://lists.w3.org/Archives/Public/public-tt/2016Dec/0013.html> and Fwd: Subtitle/caption styling + TTML + CSS<https://lists.w3.org/Archives/Public/public-tt/2016Dec/0019.html>

CSS 2.2 request for reviews from TTWG et al: Pre-announcement of CR for CSS 2.2 & request for reviews<https://lists.w3.org/Archives/Public/public-tt/2016Dec/0017.html> When can we schedule a review and gather feedback?

Actions:
ID      State   Title   Person  Due Date        Associated with
ACTION-443<https://www.w3.org/AudioVideo/TT/tracker/actions/443>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/443/edit>     open    Prepare a document showing mapping arib ruby extension features to ttml2 for use as a liaison document to arib.<https://www.w3.org/AudioVideo/TT/tracker/actions/443>   Glenn Adams     2016-08-26      TTML2<https://www.w3.org/AudioVideo/TT/tracker/products/4>
ACTION-462<https://www.w3.org/AudioVideo/TT/tracker/actions/462>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/462/edit>     open    Create issue on ttml2 to add "mapping from other versions and profiles of ttml"<https://www.w3.org/AudioVideo/TT/tracker/actions/462>   Glenn Adams     2016-04-28      TTML2<https://www.w3.org/AudioVideo/TT/tracker/products/4>

Most recent WD published at https://www.w3.org/TR/2017/WD-ttml2-20170106/

Merged Pull Requests: None
Open Pull Requests:
Add tts:textShadow example and modify semantics<https://github.com/w3c/ttml2/pull/218>
Apply additional style properties to tt:image, allow @style on tt:image (#232).<https://github.com/w3c/ttml2/pull/234>
New TTML1 Issues: Extract spaces at tts:textDecoration in Animation013<https://github.com/w3c/ttml1/issues/229>
New TTML2 Issues: Rename safeCropArea to activeArea<https://github.com/w3c/ttml2/issues/235>
Closed TTML1 Issues: none
Closed TTML2 Issues: none
Discussed TTML1 Issues: none
Discussed TTML2 Issues: Apply missing style properties to tt:image.<https://github.com/w3c/ttml2/issues/232>

Focus topic for this week
2nd time lucky?
Please prepare your thoughts for discussion of what background-on-span-affecting semantics should be supported in TTML2, covering at least the issues:
Should background of a span be height of text in line or computed lineHeight? #101<https://github.com/w3c/ttml2/issues/101>
Ways to make span background height be lineHeight #150<https://github.com/w3c/ttml2/issues/150>
Clarify semantics of content bpd for inline and line areas #163<https://github.com/w3c/ttml2/issues/163>
Add support for adjacent background area merging #189<https://github.com/w3c/ttml2/issues/189>
This is in the context also of how we resolve the recently discussed IMSC 1.1 issue: Control background between adjacent lines <https://github.com/w3c/imsc/issues/195>

If we have time I would also like us to begin thinking about:
Add security and privacy section. #224<https://github.com/w3c/ttml2/issues/224>


Current open issues: https://github.com/w3c/ttml1/issues and https://github.com/w3c/ttml2/issues
See spreadsheet of editorial actions at https://github.com/w3c/ttml2/blob/master/spec/ednotes.xlsx
Edit/build instructions now in README in ttml2/spec/ at https://github.com/w3c/ttml2/blob/master/spec/README.md

Agenda+ Profiles registry.

Updated (2017-01-17) Working Group Note published at https://www.w3.org/TR/ttml-profile-registry/

Merged pull request: none
Open pull requests: none
Closed issues: broken link to fix<https://github.com/w3c/tt-profile-registry/issues/35>
New issue: none

https://github.com/w3c/tt-profile-registry
http://w3c.github.io/tt-profile-registry/

https://www.w3.org/wiki/TTML/ProfileRegistry

Agenda+ TTML and WebVTT Mapping Document

Editor's Draft is at http://w3c.github.io/ttml-webvtt-mapping/

Agenda+ HTMLCue proposal progress update.

ID      State   Title   Person  Due Date        Associated with
ACTION-441<https://www.w3.org/AudioVideo/TT/tracker/actions/441>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/441/edit>     open    Kick off the analysis work on the vttcue carrying html idea.<https://www.w3.org/AudioVideo/TT/tracker/actions/441>      Andreas Tai     2015-11-05


See https://lists.w3.org/Archives/Public/public-tt/2016Apr/0012.html for further information on this, this week.

Also HTML import and HTMLCue?<https://lists.w3.org/Archives/Public/public-tt/2016Sep/0003.html> email from 2016-09-06.

[placeholder agenda item]

Agenda+ WebVTT review feedback

ID      State   Title   Person  Due Date        Associated with
ACTION-396<https://www.w3.org/AudioVideo/TT/tracker/actions/396>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/396/edit>     open    Produce evidence of request for wide review for webvtt, for the archive<https://www.w3.org/AudioVideo/TT/tracker/actions/396>   David Singer    2015-04-17      WebVTT 1.0<https://www.w3.org/AudioVideo/TT/tracker/products/8>
ACTION-473<https://www.w3.org/AudioVideo/TT/tracker/actions/473>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/473/edit>     open    Contact co-chairs and essential parties on how to move forward on vtt; need an action plan<https://www.w3.org/AudioVideo/TT/tracker/actions/473>        Thierry Michel  2016-06-30      WebVTT 1.0<https://www.w3.org/AudioVideo/TT/tracker/products/8>

Discussion on WebVTT review feedback and next steps.

WebVTT Wide review wiki page: https://www.w3.org/wiki/WebVTT_Wide_Review

Open Pull requests: Add requirements for region identifier to exist.<https://github.com/w3c/webvtt/pull/201>.<https://github.com/w3c/webvtt/pull/201>
Merged Pull requests: Add a section that explains the CSS extensions to authors.<https://github.com/w3c/webvtt/pull/317>
New issues:
Add Security and Privacy Considerations section<https://github.com/w3c/webvtt/issues/323>
Use bikeshed markup for terms correctly (using for="" etc)<https://github.com/w3c/webvtt/issues/322>
Closed issues:
CR bug: rearrange section 6<https://github.com/w3c/webvtt/issues/313>
After overlap resolution, new cue positions should be represented in the DOM<https://github.com/w3c/webvtt/issues/285>
Parsing question about "line terminators"<https://github.com/w3c/webvtt/issues/303>
Add default styling to "well-known" classes<https://github.com/w3c/webvtt/issues/270>
Have tags for specifying color and background color<https://github.com/w3c/webvtt/issues/272>
Recently discussed issues:
New Feature: start addressing live captioning<https://github.com/w3c/webvtt/issues/318>
Question about the cue's line when cue has region<https://github.com/w3c/webvtt/issues/296>
Live captioning - JS API review<https://github.com/w3c/webvtt/issues/319>
Native controls cue overlap avoidance works badly for vertical<https://github.com/w3c/webvtt/issues/276>
Minimal resolution of overlapping cues is difficult<https://github.com/w3c/webvtt/issues/284>
CR bug: region identifiers<https://github.com/w3c/webvtt/issues/314>
CR bug: support scrolling for vertically rendered text<https://github.com/w3c/webvtt/issues/316>
Live captioning - incremental cues review <https://github.com/w3c/webvtt/issues/320>

Agenda+ AOB

References

Wiki http://www.w3.org/wiki/TimedText
Received on Tuesday, 24 January 2017 19:44:37 UTC