W3C home > Mailing lists > Public > public-tt@w3.org > September 2017

{agenda} TTWG Meeting 2017-09-14

From: Nigel Megitt <nigel.megitt@bbc.co.uk>
Date: Wed, 13 Sep 2017 13:28:14 +0000
To: Timed Text Working Group <public-tt@w3.org>
Message-ID: <D5DECE21.48BEC%nigel.megitt@bbc.co.uk>
This meeting is scheduled for up to 120m. Please be ready for a prompt start at 10:03am Boston 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=20170914T10&p1=43

Thursdays 10:03am-12:00pm 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. TPAC advanced planning
2. TTML2 Horizontal Review
4. TTML issue assignment and progress tracking
5. TTML1 & TTML2 issues, actions, PRs, editorial actions etc
6. WebVTT feedback (David Singer to Chair if present)
7. HDR in PNG (placeholder)
8. Progress on HTMLCue proposal (placeholder)
9. AOB  please notify of any other AOB now!

Reminder re future milestones and meetings:

September meetings:

Thursday 21st September: TTWG phone meeting 2 Hour(s)
Thursday 28th September: TTWG phone meeting 2 Hour(s)

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

Further ahead:

Thursday 5th October: TTWG phone meeting ? Hour(s)
Thursday 12th October: TTWG phone meeting ? Hour(s)
Thursday 19th October: TTWG phone meeting ? Hour(s)
Thursday 26th October: TTWG phone meeting ? Hour(s)

Agenda+ TPAC 2017 Advanced planning

Please be ready to discuss TPAC agenda items

TTWG TPAC2017 wiki page: https://www.w3.org/wiki/TimedText/tpac2017

As Chair I have completed the WBS survey, requesting:

Attendance for ~10 people.
No preference for date, meet on any two days.
Flexible about days.
Joint meeting with CSS WG and with Web and TV IG.
Avoid overlap with Web and TV IG.
Permit observers.
Not member confidential.
Estimate ~6 attending technical plenary.
Estimate ~3 attending AC sessions Tuesday and Thursday.


We will jointly meet the Web & TV IG on the Monday, and have invited CSS WG to attend our meeting on the Friday, times to be confirmed.

Agenda+ TTML2 Horizontal Review

The CSS WG has been invited to meet us at TPAC on the Friday.

ID      State   Title   Person  Due Date        Associated with
ACTION-506<https://www.w3.org/AudioVideo/TT/tracker/actions/506>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/506/edit>     open    Draft a wiki page explaining our review and disposition steps and labels<https://www.w3.org/AudioVideo/TT/tracker/actions/506>  Thierry Michel  2017-09-14

ID      State   Title   Person  Due Date        Associated with
ACTION-504<https://www.w3.org/AudioVideo/TT/tracker/actions/504>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/504/edit>     open    Send csswg an invitation reminder by 2017-09-07<https://www.w3.org/AudioVideo/TT/tracker/actions/504>   Nigel Megitt    2017-09-07

Collate list of the issues we want to open with CSS WG

This is at https://www.w3.org/wiki/TTML/CSSRequirements

We also need to explain what the use case is for the features, rather than just each styling feature itself.

TAG, CSSWG and Privacy feedback needs processing into TTML2 issues.

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>

Internationalisation review by r12a has generated several issues on TTML2 and comments on existing issues (see below), this week mainly about alignment with relatively recent CSS developments.

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?

Agenda+ IMSC (now incorporates Unicode ticket)

IMSC Tests released as v1.0.0 at https://github.com/w3c/imsc-tests/releases/tag/v1.0.0 .

IMSC 1.0.1
IMSC 1.0.1 CR published at https://www.w3.org/TR/2017/CR-ttml-imsc1.0.1-20170713/
IMSC 1.0.1 Implementation report at https://www.w3.org/wiki/TimedText/IMSC1_0_1_Implementation_Report
IMSC 1 Rec available at https://www.w3.org/TR/2016/REC-ttml-imsc1-20160421/
Patent policy call for exclusions sent 2017-02-03, archived at https://lists.w3.org/Archives/Public/public-tt/2017Feb/0006.html

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.
IMSC Tests repository: https://github.com/w3c/imsc-tests

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 IMSC pull requests: None
Open IMSC pull requests: None
New or discussed IMSC issues: None
Closed IMSC issues: None
Merged IMSC Tests pull requests: None
Open IMSC Tests pull requests: None
New or discussed IMSC Tests issues:
Add HRM threshold test(s)<https://github.com/w3c/imsc-tests/issues/37>
Closed IMSC Tests issues: None

Agenda+ TTML issue assignment and progress tracking (20 minutes maximum)

We have now published the WD for WR however there are still many issues open, and we intend also to apply multiple fixes as already agreed for TTML1.

At the moment of writing this agenda, there are:

TTML1 issues:

  *   3 open issues with no milestone, none marked as discussed and agreed
  *   37 open issues in "3rd Ed" milestone, 15 marked as discussed and agreed
  *   11 open issues in "3rd Ed Test Suite" milestone, none marked as discussed and agreed

TTML2 issues:

  *   2 open issues on the Editor's CR Work List milestone, none of which has a PR and one of which is marked as "works for me";
  *   58 open issues with no milestone, none of which has a PR open label.
  *   the "Group's WR action required list" and Editor's WR Work List milestones have been deleted.

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

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>
ACTION-503<https://www.w3.org/AudioVideo/TT/tracker/actions/503>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/503/edit>     open    Send a reminder to groups for ttml2 review by 8th september<https://www.w3.org/AudioVideo/TT/tracker/actions/503>       Thierry Michel  2017-08-17      TTML2<https://www.w3.org/AudioVideo/TT/tracker/products/4>

Most recent WD published at https://www.w3.org/TR/2017/WD-ttml2-20170630/

Merged TTML1 Pull Requests: None
Merged TTML2 Pull Requests: None
Open TTML1 Pull Requests: None
Open TTML2 Pull Requests: None
New TTML1 Issues: None
New TTML2 Issues:
base backgroundColor semantic on CSS background-color<https://github.com/w3c/ttml2/issues/410>
base backgroundImage on CSS background-image semantic<https://github.com/w3c/ttml2/issues/411>
base backgroundRepeat on CSS semantic<https://github.com/w3c/ttml2/issues/412>
base color on CSS color property<https://github.com/w3c/ttml2/issues/413>
base direction on CSS direction property<https://github.com/w3c/ttml2/issues/414>
base displayAlign on CSS justify-content property<https://github.com/w3c/ttml2/issues/415>
base fontFamily on CSS font-family<https://github.com/w3c/ttml2/issues/416>
base fontSize on CSS font-size property<https://github.com/w3c/ttml2/issues/417>
base fontStyle on CSS font-style property<https://github.com/w3c/ttml2/issues/418>
base fontWeight on CSS font-weight property<https://github.com/w3c/ttml2/issues/419>
base lineHeight on CSS line-height property<https://github.com/w3c/ttml2/issues/420>
base overflow on CSS overflow property<https://github.com/w3c/ttml2/issues/421>
base padding on CSS padding property<https://github.com/w3c/ttml2/issues/422>
base textAlign on CSS text-align property<https://github.com/w3c/ttml2/issues/423>
Closed TTML1 Issues: None
Closed TTML2 Issues: None
Discussed TTML1 Issues: None
Discussed TTML2 Issues:
Define tts:fontSelectionStrategy.<https://github.com/w3c/ttml2/issues/371>
Add equivalent CSS properties to style attributes<https://github.com/w3c/ttml2/issues/406>

Focus topic(s) for this week


How we handle CSS equivalent semantics in the TTML2 spec - #406 and sub-issues.

Iterate through open issues with no PR  decide action to take on each, e.g. defer to CR, defer to TTML.next, close etc.

If there are any issues that we decide need to be resolved before WR a proposal for the fix is needed ASAP (basically, it's too late already unless it can easily be agreed by the group).

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+ WebVTT review feedback

Note that Simon Pieters will be stepping down from editing WebVTT by the end of this week  see https://lists.w3.org/Archives/Public/www-archive/2017Sep/0001.html
I'm sure we all wish Simon all the best and thank him for the work he has done here.

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-502<https://www.w3.org/AudioVideo/TT/tracker/actions/502>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/502/edit>     open    Explain to david that we need a more consistent disposition of comments for webvtt.<https://www.w3.org/AudioVideo/TT/tracker/actions/502>       Thierry Michel  2017-08-10      WebVTT 1.0<https://www.w3.org/AudioVideo/TT/tracker/products/8>

Discussion on WebVTT review feedback and next steps.

What are the WG's views on the dispositions generated by the CG?

Resolve to publish a new WD? (not strictly necessary)

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

Open Pull requests:
Fix #270: Add classes to specify text color<https://github.com/w3c/webvtt/pull/279>
Merged Pull requests: None
New issues: None
Closed issues: None
Recently discussed issues: None

Agenda+ HDR in PNG [placeholder agenda item]

We published this Note at https://www.w3.org/TR/png-hdr-pq/ (republished 25th July incorporating fix for typo)

Repo for PQ HDR in PNG: https://github.com/w3c/png-hdr-pq
Draft WG Note: https://w3c.github.io/png-hdr-pq/

Merged pull requests: None
Open pull requests: None
New or discussed issues: None
Closed issues: None

Agenda+ HTMLCue proposal progress update. [placeholder agenda item]

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.

See also the notes from the TAG meeting (see agenda item above) at which the inability to instantiate TextTrackCue objects in most browsers was mentioned.

Agenda+ AOB


Wiki http://www.w3.org/wiki/TimedText
Received on Wednesday, 13 September 2017 13:28:42 UTC

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