{agenda} TTWG Meeting 2018-06-14

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=20180614T10&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 21st June: TTWG meeting 2 Hour(s)
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

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

Call for Consensus to request transition of TTML2 to CR2 issued: https://lists.w3.org/Archives/Public/public-tt/2018Jun/0083.html
 21 Pull requests merged by 3 people
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 semanti…<https://github.com/w3c/ttml2/pull/825>
Merged #828 Fix typo in rubyReserve.<https://github.com/w3c/ttml2/pull/828>
Merged #815 Further refinement of features (#814).<https://github.com/w3c/ttml2/pull/815>
Merged #824 Remove word 'measure' that does not refer to <measure> value syntax (…<https://github.com/w3c/ttml2/pull/824>
Merged #826 Change semantics of <length> component of tts:rubyReserve (#779).<https://github.com/w3c/ttml2/pull/826>
Merged #739 Add #length-root-container-relative feature (#718).<https://github.com/w3c/ttml2/pull/739>
Merged #705 Improve constraint/clarification semantics for animate element (#700).<https://github.com/w3c/ttml2/pull/705>
Merged #818 Remove digits keyword from tts:textCombine (#817).<https://github.com/w3c/ttml2/pull/818>
Merged #770 Add features for standard PNG images (#694).<https://github.com/w3c/ttml2/pull/770>
Merged #813 Revert deprecation of 'seq' time container in smpte discontinuous mod…<https://github.com/w3c/ttml2/pull/813>
Merged #812 Remove around and between in rubyReserve (#811).<https://github.com/w3c/ttml2/pull/812>
Merged #810 Clarify luminanceGain applicability.<https://github.com/w3c/ttml2/pull/810>
Merged #808 Add xml:base to core vocabulary (#804).<https://github.com/w3c/ttml2/pull/808>
Merged #807 Add tts:lineShear and tts:shear style attributes (#784).<https://github.com/w3c/ttml2/pull/807>
Merged #799 Clarify use of font* properties in resolving default line height (#785).<https://github.com/w3c/ttml2/pull/799>
Merged #798 Clarify 'outside' for annotation position (#782)<https://github.com/w3c/ttml2/pull/798>
Merged #652 Resolve confusion between default and implicit (#590).<https://github.com/w3c/ttml2/pull/652>
Merged #651 Update requirements for claim of document (content) compliance (#495).<https://github.com/w3c/ttml2/pull/651>
Merged #769 Exclude vertical length offset as 1st component in 2 component positi…<https://github.com/w3c/ttml2/pull/769>
Merged #665 Clarify that metadata has no presentation semantics (#656).<https://github.com/w3c/ttml2/pull/665>


 31 Issues closed by 2 people
Closed #806 Use of maximum descendant font size in normal line height computation.<https://github.com/w3c/ttml2/issues/806>
Closed #827 Typo in rubyReserve text.<https://github.com/w3c/ttml2/issues/827>
Closed #246 Complex ruby is usually both mono and group ruby<https://github.com/w3c/ttml2/issues/246>
Closed #251 Handling non-kana text for rubyAlign with spaceAround or spaceBetween<https://github.com/w3c/ttml2/issues/251>
Closed #400 Feedback on HDR compositing<https://github.com/w3c/ttml2/issues/400>
Closed #403 Security and privacy re external resources<https://github.com/w3c/ttml2/issues/403>
Closed #453 SMPTE response as TTML2 review.<https://github.com/w3c/ttml2/issues/453>
Closed #697 Negative feature designators aren't future proof.<https://github.com/w3c/ttml2/issues/697>
Closed #819 Fix typos.<https://github.com/w3c/ttml2/issues/819>
Closed #821 Missing hook from conformance to profile abort processing.<https://github.com/w3c/ttml2/issues/821>
Closed #822 Inconsistent application of profile combination methods.<https://github.com/w3c/ttml2/issues/822>
Closed #814 Further fine tuning of features.<https://github.com/w3c/ttml2/issues/814>
Closed #823 Avoid use of 'measure' that does not refer to <measure> value syntax.<https://github.com/w3c/ttml2/issues/823>
Closed #779 Semantics of tts:rubyReserve length component.<https://github.com/w3c/ttml2/issues/779>
Closed #695 Use of HDR images.<https://github.com/w3c/ttml2/issues/695>
Closed #718 Add TTML feature(s) for rw/rh <length> units<https://github.com/w3c/ttml2/issues/718>
Closed #700 Animate specification text improvements.<https://github.com/w3c/ttml2/issues/700>
Closed #817 Remove digits value from tts:textCombine values.<https://github.com/w3c/ttml2/issues/817>
Closed #694 Use of PNG image format.<https://github.com/w3c/ttml2/issues/694>
Closed #377 Time containment semantics for smpte time base.<https://github.com/w3c/ttml2/issues/377>
Closed #811 Eliminate references to around and between in tts:rubyReserve.<https://github.com/w3c/ttml2/issues/811>
Closed #796 Clarify that tts:luminanceGain shall not apply unless absolute HDR scheme used.<https://github.com/w3c/ttml2/issues/796>
Closed #804 Add missing xml:base attribute.<https://github.com/w3c/ttml2/issues/804>
Closed #784 Add support for block level shear.<https://github.com/w3c/ttml2/issues/784>
Closed #785 Clarify meaning of font* properties being applied to a paragraph.<https://github.com/w3c/ttml2/issues/785>
Closed #782 Clarify "outside" semantics in <annotation-position><https://github.com/w3c/ttml2/issues/782>
Closed #590 Does "implicit" begin value mean the "default" value of the begin attribute?<https://github.com/w3c/ttml2/issues/590>
Closed #495 Claims section does not take into account ttp:contentProfiles and ttp:processorProfiles.<https://github.com/w3c/ttml2/issues/495>
Closed #711 Disallow <length> {left,right} position syntax.<https://github.com/w3c/ttml2/issues/711>
Closed #809 Disallow `offset-position-v` as a one component position<https://github.com/w3c/ttml2/issues/809>
Closed #656 Metadata has no presentation semantics.<https://github.com/w3c/ttml2/issues/656>

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

 1 Pull request proposed by 1 person
Proposed #831 Tweak dates, fix figure numbering, begin update to changes document.<https://github.com/w3c/ttml2/pull/831>

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

 2 Issues created by 2 people
Opened #830 Add clarifying note to definition of [height] term.<https://github.com/w3c/ttml2/issues/830>
Opened #820 Implied region animation ambiguity.<https://github.com/w3c/ttml2/issues/820>

Issues and Pull requests currently marked as Agenda:

Tweak dates, fix figure numbering, begin update to changes document. <https://github.com/w3c/ttml2/pull/831>
<https://github.com/w3c/ttml2/pull/831#partial-pull-merging>
 agenda<https://github.com/w3c/ttml2/issues?q=is%3Aopen+label%3Aagenda> editorial<https://github.com/w3c/ttml2/issues?q=is%3Aopen+label%3Aeditorial>

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 actions in tracker

Recent Activity

No pull requests merged.
 1 Issue closed by 1 person
Closed #383 Offset <time-expression> w/o metric allowed?<https://github.com/w3c/imsc/issues/383>


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

 2 Issues created by 2 people
Opened #387 Missing #region-implied-animation<https://github.com/w3c/imsc/issues/387>
Opened #386 Clarify that tt:initial applies to styles defined in the EBU and IMSC namespaces<https://github.com/w3c/imsc/issues/386>

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

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.

 2 Issues created by 1 person
Opened #25 Update tts:rubyReserve values <https://github.com/w3c/imsc-vnext-reqs/issues/25>
Opened #24 tts:fontShear should be tts:shear<https://github.com/w3c/imsc-vnext-reqs/issues/24>

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

 1 Pull request merged by 1 person
Merged #444 Update web-platform-tests URLs<https://github.com/w3c/webvtt/pull/444>


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