{agenda} TTWG Meeting 2018-06-07

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=20180607T10&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: Thierry, 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 14th June: TTWG meeting ? Hour(s)
Thursday 21st June: TTWG meeting ? Hour(s)
Thursday 28th June: 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 July: TTWG meeting ? Hour(s)
Thursday 12th July: TTWG meeting ? Hour(s)
Thursday 19th July: TTWG meeting ? Hour(s)
Thursday 26th July: TTWG meeting ? 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

No overdue actions

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


 17 Pull requests merged by 1 person
Merged #772 Add explicit exceptions to ignoring element semantics with condition …<https://github.com/w3c/ttml2/pull/772>
Merged #742 Exclude implied animation of region via tts:origin on div and p (#710).<https://github.com/w3c/ttml2/pull/742>
Merged #794 Clean up and refactor features (#688, #763, #789, #790, #791, #792, #…<https://github.com/w3c/ttml2/pull/794>
Merged #731 Refactor semantics of #region-inline-implicit (#727).<https://github.com/w3c/ttml2/pull/731>
Merged #755 Describe generically compliant processors that support only external …<https://github.com/w3c/ttml2/pull/755>
Merged #740 Clarify application of ruby alignment and positioning (#717).<https://github.com/w3c/ttml2/pull/740>
Merged #803 Collapse language for style application to paragraph text nodes; add …<https://github.com/w3c/ttml2/pull/803>
Merged #805 Add and update element derivations (#380).<https://github.com/w3c/ttml2/pull/805>
Merged #774 Make tts:ruby non-animatable (#773).<https://github.com/w3c/ttml2/pull/774>
Merged #707 Remove @style from animate and set (#703).<https://github.com/w3c/ttml2/pull/707>
Merged #759 Add #unicodeBidi-version-2 feature designator (#679).<https://github.com/w3c/ttml2/pull/759>
Merged #777 Clarify distinction between validation processing, validation process…<https://github.com/w3c/ttml2/pull/777>
Merged #771 Clarify use of multiple specifications of initial value for the same …<https://github.com/w3c/ttml2/pull/771>
Merged #768 Revert optionality of metric (#752).<https://github.com/w3c/ttml2/pull/768>
Merged #766 Clarify generic processor conformance (#673).<https://github.com/w3c/ttml2/pull/766>
Merged #795 Editorial improvement and typo fix for ruby constraints (#786, #787, …<https://github.com/w3c/ttml2/pull/795>
Merged #761 Add override support for validation abort processing (#672).<https://github.com/w3c/ttml2/pull/761>


 25 Issues closed by 1 person
Closed #583 Prune elements whose condition evaluates to false?<https://github.com/w3c/ttml2/issues/583>
Closed #710 Update #origin for TTML1 compatibility.<https://github.com/w3c/ttml2/issues/710>
Closed #790 Refactor #condition features.<https://github.com/w3c/ttml2/issues/790>
Closed #791 Add missing #display-version-2 feature.<https://github.com/w3c/ttml2/issues/791>
Closed #792 Remove #font*-p feature designators.<https://github.com/w3c/ttml2/issues/792>
Closed #793 Refactor #rubyAlign features.<https://github.com/w3c/ttml2/issues/793>
Closed #688 Exclude #rubyAlign-withBase from #rubyAlign.<https://github.com/w3c/ttml2/issues/688>
Closed #763 Rewrite version 1 features as references to [TTML1].<https://github.com/w3c/ttml2/issues/763>
Closed #789 Add missing constraints on content profile feature prohibitions.<https://github.com/w3c/ttml2/issues/789>
Closed #727 Definition of implicit inline region<https://github.com/w3c/ttml2/issues/727>
Closed #683 Profile related features should be optional<https://github.com/w3c/ttml2/issues/683>
Closed #717 Applicability of tts:rubyPosition and tts:rubyAlign.<https://github.com/w3c/ttml2/issues/717>
Closed #533 Duplication of text regarding property on anonymous spans.<https://github.com/w3c/ttml2/issues/533>
Closed #380 Update vocabulary derivation tables in Appendix N.<https://github.com/w3c/ttml2/issues/380>
Closed #773 Remove animation from tts:ruby.<https://github.com/w3c/ttml2/issues/773>
Closed #703 Remove @style from set and animate.<https://github.com/w3c/ttml2/issues/703>
Closed #679 Add missing feature designators.<https://github.com/w3c/ttml2/issues/679>
Closed #689 Move processor conformance out of #validation<https://github.com/w3c/ttml2/issues/689>
Closed #764 Property specified more than once on tt:initial<https://github.com/w3c/ttml2/issues/764>
Closed #752 Featurize offset times w/o metric.<https://github.com/w3c/ttml2/issues/752>
Closed #673 Generic processor conformance too strict.<https://github.com/w3c/ttml2/issues/673>
Closed #786 Fix typos and improve readability of ruby nesting constraints.<https://github.com/w3c/ttml2/issues/786>
Closed #787 Clarify no preceding sibling case on ruby text content.<https://github.com/w3c/ttml2/issues/787>
Closed #788 Clarify no preceding sibling case on ruby delimiter.<https://github.com/w3c/ttml2/issues/788>
Closed #672 Document processing context should be able to override ttp:validationAction="abort".<https://github.com/w3c/ttml2/issues/672>

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

 4 Pull requests proposed by 3 people
Proposed #810 Clarify luminanceGain applicability.<https://github.com/w3c/ttml2/pull/810>
Proposed #812 Remove around and between in rubyReserve (#811).<https://github.com/w3c/ttml2/pull/812>
Proposed #813 Revert deprecation of 'seq' time container in smpte discontinuous mod…<https://github.com/w3c/ttml2/pull/813>
Proposed #815 Further refinement of features (#814).<https://github.com/w3c/ttml2/pull/815>

Plus 11 pull requests open for longer:

Proposed #739 Add #length-root-container-relative feature (#718).<https://github.com/w3c/ttml2/pull/739>
Proposed #769 Exclude vertical length offset as 1st component in 2 component positi…<https://github.com/w3c/ttml2/pull/769>
Proposed #770 Add features for standard and high dynamic range PNG images (#694, #6…<https://github.com/w3c/ttml2/pull/770>
Proposed #798 Clarify 'outside' for annotation position when only one line area is …<https://github.com/w3c/ttml2/pull/798>
Proposed #799 Clarify use of font* properties in resolving default line height (#785).<https://github.com/w3c/ttml2/pull/799>
Proposed #807 Add tts:lineShear and tts:shear style attributes (#784).<https://github.com/w3c/ttml2/pull/807>
Proposed #808 Add xml:base to core vocabulary (#804).<https://github.com/w3c/ttml2/pull/808>
Proposed #705 Improve constraint/clarification semantics for animate element (#700).<https://github.com/w3c/ttml2/pull/705>
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

 3 Issues created by 3 people
Opened #814 Further fine tuning of features.<https://github.com/w3c/ttml2/issues/814>
Opened #811 Eliminate references to around and between in tts:rubyReserve.<https://github.com/w3c/ttml2/issues/811>
Opened #809 Disallow `offset-position-v` as a one component position<https://github.com/w3c/ttml2/issues/809>


Issues and Pull requests currently marked as Agenda:

tts:rubyReserve length component semantics <https://github.com/w3c/ttml2/issues/779> agenda<https://github.com/w3c/ttml2/issues?q=is%3Aopen+label%3Aagenda> works for me<https://github.com/w3c/ttml2/issues?q=is%3Aopen+label%3A%22works+for+me%22>
Update requirements for claim of document (content) compliance (#495). <https://github.com/w3c/ttml2/pull/651>
<https://github.com/w3c/ttml2/pull/651#partial-pull-merging>
 agenda<https://github.com/w3c/ttml2/issues?q=is%3Aopen+label%3Aagenda>pending re-review<https://github.com/w3c/ttml2/issues?q=is%3Aopen+label%3A%22pending+re-review%22> substantive<https://github.com/w3c/ttml2/issues?q=is%3Aopen+label%3Asubstantive>

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

As per https://www.w3.org/2018/03/22-tt-minutes.html#resolution01 request transition of IMSC 1.1 to CR.


Recent Activity

No pull requests merged or issues closed.


Pull Requests To Review (if discussion requested)

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

No issues created this week.

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 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
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 merged or issues closed.

Pull requests for review (to discuss if requested)

No pull requests proposed or open.


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

No issues or pull requests currently marked for the agenda.

No issues created this week.

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

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.

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 this week.


Agenda+ AOB

References

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