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

{agenda} TTWG Meeting 2017-03-02

From: Nigel Megitt <nigel.megitt@bbc.co.uk>
Date: Thu, 2 Mar 2017 02:28:52 +0000
To: "public-tt@w3.org" <public-tt@w3.org>
Message-ID: <D4DCC35C.39800%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

The Chair will have a hard stop at around 11:50am 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=20170302T11&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. Meetings times
2. IMSC (now incorporates Unicode ticket)
3. TTML issues, actions, PRs etc
4. Progress on HTMLCue proposal (placeholder)
5. WebVTT comments (placeholder)
6. AOB – please notify of any other AOB now!


Reminder re future milestones and meetings:

March Meetings:

Thursday 9th March: TTWG phone meeting 1 hour
Thursday 16th March: TTWG phone meeting 1 hour
Thursday 23rd March: TTWG phone meeting 1 hour
Thursday 30th March: TTWG phone meeting 1 hour

Further ahead:

Thursday

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+ Meetings times

Proposal to begin meetings going forward at 10am Boston time and extend the duration to 2 hours until we have reached TTML2 WR.

Agenda+ IMSC (now incorporates Unicode ticket)

Main agenda point is to try to conclude on the foreign namespace usage is underspecified<https://github.com/w3c/imsc/issues/213> issue.

IMSC 1.0.1 FPWD published at https://www.w3.org/TR/ttml-imsc1.0.1/

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.


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: none
New or discussed issues: foreign namespace usage is underspecified<https://github.com/w3c/imsc/issues/213>
Closed issues: none


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>

Internationalisation review by Addison Phillips has generated several new issues on TTML2 (see below)

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:
Improve language regarding pruning during ISD construction (#210, #212).<https://github.com/w3c/ttml2/pull/272>
Open TTML1 Pull Requests:
Clarify application of padding (#221)<https://github.com/w3c/ttml1/pull/233>
Open TTML2 Pull Requests: none
New TTML1 Issues: none
New TTML2 Issues:
Styling using tts:direction: there should be an `auto` value<https://github.com/w3c/ttml2/issues/268>
tts:writingMode example is not helpful<https://github.com/w3c/ttml2/issues/269>
Can <named-item> altText have xml:lang?<https://github.com/w3c/ttml2/issues/270>
Metadata examples do not include xml:lang (editorial) <https://github.com/w3c/ttml2/issues/271>
Closed TTML1 Issues: none
Closed TTML2 Issues:
Add identifier support for related ordered sequences of documents<https://github.com/w3c/ttml2/issues/122>
Add support for marquee style semantics<https://github.com/w3c/ttml2/issues/119>
Model for binding presentation values to externally defined parameters<https://github.com/w3c/ttml2/issues/149>
Process [construct intermediate document] prunes "set" elements<https://github.com/w3c/ttml2/issues/210>
Discussed TTML1 Issues: none
Discussed TTML2 Issues:
Use of 'em' units in tts:fontSize on region element is not well defined. <https://github.com/w3c/ttml2/issues/216>
How would someone display ruby inline?<https://github.com/w3c/ttml2/issues/255>
Default ruby position may be on the wrong side for tblr (eg. Mongolian)<https://github.com/w3c/ttml2/issues/254>
Support for bopomofo ruby needed<https://github.com/w3c/ttml2/issues/253>
Mismatch between CSS and TTML2 text align styling on <span><https://github.com/w3c/ttml2/issues/238>
Ambiguous definition of "empty" in Synchronic Document Construction<https://github.com/w3c/ttml2/issues/212>
Add support for Audio Description requirements<https://github.com/w3c/ttml2/issues/195>

Focus topic(s) for this week

Use of 'em' units in tts:fontSize on region element is not well defined.<https://github.com/w3c/ttml2/issues/216> since this has been closed and reopened and we need to get to consensus so that we can close it and move on.

Issue-239 3D and images<https://github.com/w3c/ttml2/issues/239>
Can we resolve this on the call?

Inclusion of foreign namespace elements – is it only permitted on metadata elements, or anywhere? Do we need additional conformance language? See also IMSC issue foreign namespace usage is underspecified<https://github.com/w3c/imsc/issues/213>

TTML1 Clarification of padding pull request Clarify application of padding (#221)<https://github.com/w3c/ttml1/pull/233>


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+ 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>
Editorial: Use IDL typedef for line and position members<https://github.com/w3c/webvtt/pull/335>
Merged Pull requests:
Throw IndexSizeError if VTTRegion lines is set to -1<https://github.com/w3c/webvtt/pull/334>
New issues:
Parsing: should drop line:100,invalid setting<https://github.com/w3c/webvtt/issues/336>
Closed issues:
VTTRegion API Overview regionAnchorY not defined<https://github.com/w3c/webvtt/issues/330>
Setting VTTRegion.lines to a negative value should throw<https://github.com/w3c/webvtt/issues/333>
Recently discussed issues: none

Agenda+ AOB

References

Wiki http://www.w3.org/wiki/TimedText





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Received on Thursday, 2 March 2017 02:29:45 UTC

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