{agenda} TTWG Meeting 2018-06-21

This meeting is scheduled for up to 120 minutes.
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=20180621T10&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: Andreas

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. TTML1 Actions, Pull Requests and Issues
2. TTML2 Actions, Pull Requests and Issues
3. IMSC Actions, Pull Requests and Issues
4. IMSC vNext requirements Actions, Pull Requests and Issues
5. CSS Actions Review
6. WebVTT (David Singer to Chair if present)
8. AOB – please notify of any other AOB now!


Reminder re future milestones and meetings:

June meetings:

Thursday 28th June: TTWG 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 July: TTWG meeting 2 Hour(s)
Thursday 12th July: TTWG meeting 2 Hour(s)
Thursday 19th July: TTWG meeting 2 Hour(s)
Thursday 26th July: TTWG meeting 2 Hour(s)

Next planned face to face: TPAC 2018 Lyon<https://www.w3.org/2018/10/TPAC/Overview.html>, 22-26 October.

Agenda+ TTML1 Actions, Pull Requests and Issues

Actions

None in Tracker

Next steps to complete the TTML1 3rd Ed implementation report?

https://www.w3.org/wiki/TTML1-3ED_implementation_report


Recent Activity

TTML1 3rd Edition CR was published on 24th April at https://www.w3.org/TR/2018/CR-ttml1-20180424/ (and pointed to by https://www.w3.org/TR/ttml1/ also).

No pull requests opened or issues closed.

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 #353 Move edition number to subtitle (#352)<https://github.com/w3c/ttml1/pull/353>

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

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
Most recent TTML1 3rd Edition CR: https://www.w3.org/TR/2018/CR-ttml1-20180424/
TTML1 Tests repo: https://github.com/w3c/ttml1-tests

Agenda+ TTML2 Actions, Pull Requests and Issues

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     2018-06-15      TTML2<https://www.w3.org/AudioVideo/TT/tracker/products/4>

What needs to be done to complete the TTML2 implementation report?

https://www.w3.org/wiki/TTML/TTML2ImplementationReport

Request to create a ttml2-tests repository.

Recent Activity

Call for Consensus to request transition of TTML2 to CR2 issued: https://lists.w3.org/Archives/Public/public-tt/2018Jun/0083.html

Some edits are being made in response to feedback on the draft – we are working towards merging them before publication, so please try to stay across the changes as they're made.

 3 Pull requests merged by 1 person
Merged #833 Improve constraints on 'tts:rubyPosition' usage (#832).<https://github.com/w3c/ttml2/pull/833>
Merged #829 Switch to CR entities, update dates in status.<https://github.com/w3c/ttml2/pull/829>
Merged #825 Add informative text clarifying line height and line stacking semantic…<https://github.com/w3c/ttml2/pull/825>

 3 Issues closed by 2 people
Closed #832 Applicability of tts:rubyPosition when tts:ruby="text".<https://github.com/w3c/ttml2/issues/832>
Closed #277 Incorporate CSS advances into TTML vertical text handling<https://github.com/w3c/ttml2/issues/277>
Closed #806 Use of maximum descendant font size in normal line height computation.<https://github.com/w3c/ttml2/issues/806>


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

 3 Pull requests proposed by 2 people
Proposed #831 Tweak dates, fix figure numbering, begin update to changes document.<https://github.com/w3c/ttml2/pull/831>
Proposed #836 Update requirements appendix M<https://github.com/w3c/ttml2/pull/836>
Proposed #842 Add feature extensions to standard profiles; minor fixes to #bidi*, #…<https://github.com/w3c/ttml2/pull/842>

  *

No pull requests open for longer.


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

 8 Issues created by 3 people
Opened #841 Rework #textEmphasis* features.<https://github.com/w3c/ttml2/issues/841>
Opened #840 Need #xlink feature.<https://github.com/w3c/ttml2/issues/840>
Opened #839 Note #visibility implied features.<https://github.com/w3c/ttml2/issues/839>
Opened #838 Typo at #textEmphasis-no-quoted-string.<https://github.com/w3c/ttml2/issues/838>
Opened #837 The #extent feature implies #extent-auto.<https://github.com/w3c/ttml2/issues/837>
Opened #835 Review and update appendix M requirements <https://github.com/w3c/ttml2/issues/835>
Opened #834 Profiles cannot permit xml:base on ttp:features while prohibiting xml:base elsewhere.<https://github.com/w3c/ttml2/issues/834>
Opened #830 Add clarifying note to definition of [height] term.<https://github.com/w3c/ttml2/issues/830>

There are currently 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

No outstanding or overdue actions.

Recent Activity

 1 Pull request merged by 1 person
Merged #388 Miscellaneous editorial fixes<https://github.com/w3c/imsc/pull/388>

 7 Issues closed by 1 person
Closed #359 Add a hint to the Supported Features table to show if additional constraints apply<https://github.com/w3c/imsc/issues/359>
Closed #363 Color-code Section 6 to ease reading<https://github.com/w3c/imsc/issues/363>
Closed #374 Feature #background disposition<https://github.com/w3c/imsc/issues/374>
Closed #375 Minor editorial issues<https://github.com/w3c/imsc/issues/375>
Closed #376 Add "permitted-deprecated" warning box for ittp:progressivelyDecodable<https://github.com/w3c/imsc/issues/376>
Closed #380 Mention #extent-version-2 tts:extent value restriction in §6<https://github.com/w3c/imsc/issues/380>
Closed #384 Constrain tts:textCombine<https://github.com/w3c/imsc/issues/384>


Pull Requests To Review (if discussion requested)

No pull requests opened.

One pull request open for more than a week:

Proposed #379 General update<https://github.com/w3c/imsc/pull/379>


New (and old) Issues to Discuss

 6 Issues created by 2 people
Opened #394 Negative lengths should be permitted on tts:shear, tts:lineShear and tts:textShadow<https://github.com/w3c/imsc/issues/394>
Opened #393 Ensure that links from features table to additional constraints are consistent<https://github.com/w3c/imsc/issues/393>
Opened #392 Move additional #position contraints to chapter 8<https://github.com/w3c/imsc/issues/392>
Opened #391 Check the text color constrast<https://github.com/w3c/imsc/issues/391>
Opened #390 Refactor features per TTML2 CR2<https://github.com/w3c/imsc/issues/390>
Opened #389 Fix aspect ratio of itts:fillLineGap figures<https://github.com/w3c/imsc/issues/389>

No issues or pull requests 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 Rec published at https://www.w3.org/TR/2018/REC-ttml-imsc1.0.1-20180424/
IMSC 1 Rec available at https://www.w3.org/TR/2016/REC-ttml-imsc1-20160421/ - we have resolved to supersede this in favour of 1.0.1
IMSC 1.1 CR published at https://www.w3.org/TR/2018/CR-ttml-imsc1.1-20180503/
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
 1 Issue closed by 1 person
Closed #22 tts:textCombine="digits" need not be supported<https://github.com/w3c/imsc-vnext-reqs/issues/22>

Pull requests for review (to discuss if requested)

 3 Pull requests proposed by 1 person
Proposed #26 Remove tts:fontShear and consider support for tts:shear and/or tts:lineShear<https://github.com/w3c/imsc-vnext-reqs/pull/26>
Proposed #29 Exclude support for blurred tts:textShadow<https://github.com/w3c/imsc-vnext-reqs/pull/29>
Proposed #31 Add support for 'before' and 'after' to #rubyPosition and relax #rubyReserve and #textEmphasis-minimal<https://github.com/w3c/imsc-vnext-reqs/pull/31>


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

No issues or pull requests currently marked for the agenda.

 3 Issues created by 1 person
Opened #32 Remove restrictions on #textEmphasis<https://github.com/w3c/imsc-vnext-reqs/issues/32>
Opened #30 Consider adding support for tts:rubyAlign="spaceAround"<https://github.com/w3c/imsc-vnext-reqs/issues/30>
Opened #27 Exclude support for blur radius in tts:textShadow<https://github.com/w3c/imsc-vnext-reqs/issues/27>

No issues marked for the agenda at this time.

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

There is 1 upcoming action.

ID      State   Title   Person  Due Date        Associated with
ACTION-512<https://www.w3.org/AudioVideo/TT/tracker/actions/512>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/512/edit>     open    Raise an issue with css wg requesting support for lineshear<https://www.w3.org/AudioVideo/TT/tracker/actions/512>       Pierre-Anthony Lemieux  2018-06-21      TTML IMSC 1.1<https://www.w3.org/AudioVideo/TT/tracker/products/13>

For reference, we have the following CSS issues open:

[css-sizing][css-align][css-text] Aligning an aligned block of text within its container <https://github.com/w3c/csswg-drafts/issues/1975> TTML<https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3Aopen+ttml+label%3ATTML>css-align-4<https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3Aopen+ttml+label%3Acss-align-4> css-sizing-4<https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3Aopen+ttml+label%3Acss-sizing-4> css-text-4<https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3Aopen+ttml+label%3Acss-text-4>
[css-inline] Allow background of an inline area to extend to before-and after-edges of the line area <https://github.com/w3c/csswg-drafts/issues/1974> TTML<https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3Aopen+ttml+label%3ATTML> css-inline-3<https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3Aopen+ttml+label%3Acss-inline-3>
[css-inline][css-text-4] Allow padding to be applied at line start and end <https://github.com/w3c/csswg-drafts/issues/1973> TTML<https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3Aopen+ttml+label%3ATTML> css-inline-3<https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3Aopen+ttml+label%3Acss-inline-3>css-text-4<https://github.com/w3c/csswg-drafts/issues?q=is%3Aissue+is%3Aopen+ttml+label%3Acss-text-4>

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

Actions

None in tracker

Links

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

Activity

No pull requests merged this week.


5 pull requests open for longer than a week:

Proposed #439 Fix some links from the linkchecker and the broken process document link<https://github.com/w3c/webvtt/pull/439>
Proposed #430 Fontsize changes<https://github.com/w3c/webvtt/pull/430>
Proposed #434 Add a definition of "video viewport" and how it relates in HTML5 to object size resolution.<https://github.com/w3c/webvtt/pull/434>
Proposed #438 Update CLA and License agreement<https://github.com/w3c/webvtt/pull/438>
Proposed #419Timeranges <https://github.com/w3c/webvtt/pull/419>

No issues created or closed this week.


Agenda+ AOB

References

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




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