{agenda} TTWG Meeting 2018-03-22

This meeting is scheduled for up to 120 minutes.
Please be ready for a prompt start at 10:03am Boston time.

NOTE DST has begun in some places, but not all, so please check the meeting time.
For example, the meeting begins an hour earlier than usual in Europe.

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=20180322T10&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: Pierre

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. TTWG Charter
2. TTML1 3rd Ed CR, Actions, Third Edition Pull Requests and Issues
3. TTML2 Actions, Pull Requests and Issues
4. IMSC Actions, Pull Requests and Issues
5. IMSC vNext requirements Actions, Pull Requests and Issues
6. CSS Actions Review
7. WebVTT (David Singer to Chair if present)
8. HDR in PNG (placeholder)
9. AOB – please notify of any other AOB now!


Reminder re future milestones and meetings:

March meetings:

Thursday 29th March: TTWG meeting ? 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 April: TTWG meeting ? Hour(s)
Thursday 12th April: TTWG meeting ? Hour(s) NM unavailable
Thursday 19th April: TTWG meeting ? Hour(s)
Thursday 26th April: TTWG meeting ? Hour(s)

Agenda+ TTWG Charter

As requested by Thierry, what is the current status, what are the consequences of non-action, and what do we need to do next…


Agenda+ TTML1 Actions, Pull Requests and Issues

Actions – none in Tracker

Recent Activity

Thierry submitted the request to transition TTML1 3rd Edition to CR.

No pull requests merged or issues closed in the last week


Pull Requests To Review (if discussion requested)

No new pull requests opened


New (and old) Issues and Pull Requests to Discuss

One older pull request open:

Proposed #343 TTML1 3ED CR<https://github.com/w3c/ttml1/pull/343>


(Plus unresolved issues with ongoing conversations, to be confirmed.)

No new issues opened.

No issues or pull requests marked for the agenda


Links

TTML1 issues and pull requests labelled for the agenda: https://github.com/w3c/ttml1/labels/agenda
TTML1 issues blocked: https://github.com/w3c/ttml1/labels/blocked
Current open issues: https://github.com/w3c/ttml1/issues


Agenda+ TTML2 Actions, Pull Requests and Issues

Actions

None overdue in Tracker

Recent Activity

TTML2 CR was published earlier today: https://www.w3.org/TR/2018/CR-ttml2-20180313/

 1 Release published by 1 person
Published ttml2-CR-20180313-CR1 CR1<https://github.com/w3c/ttml2/releases/tag/ttml2-CR-20180313-CR1>

 4 Pull requests merged by 1 person
Merged #655 Refactor and refine non-terminal syntax for profile designators (#365, #366).<https://github.com/w3c/ttml2/pull/655>
Merged #650 Specify font loading semantics (#368).<https://github.com/w3c/ttml2/pull/650>
Merged #698 Revert entities configuration to edcopy for preparation of CR2.<https://github.com/w3c/ttml2/pull/698>
Merged #696 Add CR1 upload package.<https://github.com/w3c/ttml2/pull/696>


 3 Issues closed by 1 person
Closed #366 Account for profile fragment identifiers.<https://github.com/w3c/ttml2/issues/366>
Closed #365 Reference by designator to internally defined profile.<https://github.com/w3c/ttml2/issues/365>
Closed #368 Specify font loading semantics.<https://github.com/w3c/ttml2/issues/368>

  *   Pull Requests open for review (to discuss if requested):

 1 Pull request proposed by 1 person
Proposed #696 Add CR1 upload package.<https://github.com/w3c/ttml2/pull/696>


3 pull requests open for longer:


Proposed #651 Update requirements for claim of document (content) compliance (#495).<https://github.com/w3c/ttml2/pull/651>
Proposed #652 Resolve confusion between default and implicit (#590).<https://github.com/w3c/ttml2/pull/652>
Proposed #665 Clarify that metadata has no presentation semantics (#656).<https://github.com/w3c/ttml2/pull/665>



New (and old) Issues and Pull Requests to discuss:

(Plus unresolved issues with ongoing conversations, to be confirmed.)
TTML2 issues and pull requests labelled for the agenda: https://github.com/w3c/ttml2/labels/agenda

1 Issue created by 1 person
Opened #697 Negative feature designators aren't future proof.<https://github.com/w3c/ttml2/issues/697>


No Issues or Pull requests currently marked as Agenda.


Links

Most recent CR published at https://www.w3.org/TR/2018/CR-ttml2-20180313/
Current ED available at https://w3c.github.io/ttml2/

Current open issues:  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+ IMSC Actions, Pull Requests and Issues

Actions

None

Recent Activity

 2 Pull requests merged by 1 person
Merged #336 Modify image profile example to use TTML <image><https://github.com/w3c/imsc/pull/336>
Merged #334 Fixed typo in color example<https://github.com/w3c/imsc/pull/334>

 2 Issues closed by 1 person
Closed #313 Add an #image example to Appendix E<https://github.com/w3c/imsc/issues/313>
Closed #333 typo in color syntax example<https://github.com/w3c/imsc/issues/333>


Pull Requests To Review (if discussion requested)

No new pull requests proposed.

Plus 10 pull requests open for longer:

Proposed #346 IMSC1.0.1-REC<https://github.com/w3c/imsc/pull/346> imsc1.0.1<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Aimsc1.0.1>
Proposed #350 Update feature list per TTML2<https://github.com/w3c/imsc/pull/350>
Proposed #352 Update feature lists per requirements and deprecation strategy<https://github.com/w3c/imsc/pull/352> imsc1.1<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Aimsc1.1>
Proposed #354 Clarify the use of recommended character sets<https://github.com/w3c/imsc/pull/354> imsc1.1<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Aimsc1.1>
Proposed #355 Remove recommendation against TAB characters per TTML2 semantics<https://github.com/w3c/imsc/pull/355> imsc1.1<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Aimsc1.1>
Proposed #357 Editorial tweaks<https://github.com/w3c/imsc/pull/357> imsc1.1<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Aimsc1.1>
Proposed #358 Refactor profile signalling provisions<https://github.com/w3c/imsc/pull/358> imsc1.1<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Aimsc1.1>
Proposed #339 Point reader to Media Accessibility User Requirements<https://github.com/w3c/imsc/pull/339> horizontal-review<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Ahorizontal-review> imsc1.1<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Aimsc1.1>
Proposed #335 Clarify relationship with SMPTE-TT<https://github.com/w3c/imsc/pull/335> imsc1.1<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Aimsc1.1>
Proposed #326 Add explanatory text on profiles and processors<https://github.com/w3c/imsc/pull/326> imsc1.1<https://github.com/w3c/imsc/issues?q=is%3Apr+is%3Aopen+label%3Aimsc1.1>

New (and old) Issues to Discuss

 1 Issue created by 1 person
Opened #359 Add a hint to the Supported Features table to show if additional constraints apply<https://github.com/w3c/imsc/issues/359>

No issues currently labelled as agenda:

Links

IMSC issues and pull requests labelled for the agenda: https://github.com/w3c/imsc/labels/agenda :
IMSC issues blocked: https://github.com/w3c/imsc/labels/blocked

IMSC 1.0.1
Editor's draft is directly viewable at http://w3c.github.io/imsc/imsc1/spec/ttml-ww-profiles.html
IMSC 1.0.1 PR published at https://www.w3.org/TR/2018/PR-ttml-imsc1.0.1-20180227/
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

IMSC Implementation Page: https://www.w3.org/wiki/TimedText/IMSC1_implementation_page.
IMSC Tests repository: https://github.com/w3c/imsc-tests

IMSC 1.1 FPWD: https://www.w3.org/TR/2017/WD-ttml-imsc1.1-20171017/

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


Agenda+ IMSC vNext Requirements


Links

IMSCvNext Requirements editor's draft: https://w3c.github.io/imsc-vnext-reqs/
IMSCvNext Requirements repository: https://github.com/w3c/imsc-vnext-reqs

Recent Activity

No pull requests proposed, no issues raised.


Pull requests for review (to discuss if requested)

3 Pull requests open for longer than a week:

Proposed #19 Replace #ruby-non-nested with #ruby<https://github.com/w3c/imsc-vnext-reqs/pull/19>
Proposed #16 Constrain text emphasis position to 'outside'<https://github.com/w3c/imsc-vnext-reqs/pull/16>
Proposed #12 List features that are excluded from deprecation requirements<https://github.com/w3c/imsc-vnext-reqs/pull/12>


PROPOSAL: Publish IMSC v1.1 Requirements as a WG Note

No issues or pull requests currently marked for the agenda.

Links

IMSC Requirements issues labelled for the agenda: https://github.com/w3c/imsc-vnext-reqs/labels/agenda :
IMSC Requirements issues blocked: https://github.com/w3c/imsc-vnext-reqs/labels/blocked


Agenda+ CSS actions review

Are CSS issues filed for all style attributes for which we believe CSS work is needed?

See also https://lists.w3.org/Archives/Public/public-tt/2017Nov/0109.html

CSS WG review

Minutes from TTWG and CSS WG joint meeting at TPAC: https://www.w3.org/2017/11/09-tt-minutes.html#item35
Minutes from CSS WG Paris F2F that Nigel attended remotely on Friday 4th August: https://lists.w3.org/Archives/Public/www-style/2017Sep/0000.html
This is at https://www.w3.org/wiki/TTML/CSSRequirements

TAG design review issue: https://github.com/w3ctag/design-reviews/issues/138

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?


Agenda+ WebVTT

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>



Links

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

Activity

No activity this week

2 Pull requests open

Agenda+ HDR in PNG [placeholder agenda item]

Links

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/

Activity

None

Agenda+ AOB

References

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