{agenda} TTWG Meeting 2017-11-30

This meeting is scheduled for up to 120m. 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=20171130T10&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, Thierry

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. TTML Pull Request policy
2. Next Face to Face meeting
3. IMSC 1.1, TTML2, features, namespaces etc
4. TTML2 processor behaviour vs TTML1
5. TTML2 Wide & Horizontal Review
6. IMSC including vNext requirements Note publication proposal
7. TTML issue assignment and progress tracking
8. TTML1 & TTML2 issues, actions, PRs, editorial actions etc
9. WebVTT feedback (David Singer to Chair if present)
10. HDR in PNG (placeholder)
11. Progress on HTMLCue proposal (placeholder)
12. AOB – please notify of any other AOB now!


Reminder re future milestones and meetings:

December meetings:

Thursday 7th December: TTWG meeting ? Hour(s)
Thursday 14th December: TTWG meeting ? Hour(s)
Thursday 21st December: No meeting?
Thursday 28th December: No meeting?

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 4th January: TTWG meeting ? Hour(s)

Agenda+ TTML repository Pull Requests

Philippe to join for this agenda item.

  *   Automated builds and PR checks: https://github.com/w3c/ttml1/pull/262

  *   Commits to protected master branch via approved pull request merges only

Agenda+ Next Face to Face meeting

Results of WBS survey: https://www.w3.org/2002/09/wbs/34314/early2018ttwgf2fplanning/results


Agenda+ IMSC 1.1, TTML2, features, namespaces etc

Continuing extensive discussion on the email reflector concerning Netflix's objection to the proposals agreed at TPAC, to look for solutions that are acceptable to all, by understanding members' concerns better.

Netflix objection: https://lists.w3.org/Archives/Public/public-tt/2017Nov/0107.html


Note also Cyril's work to analyse the actual practical differences – is this complete? If it is, can we address the specifics to understand the alignment/mis-alignment? Are there any resulting actions?

<https://docs..google.com/document/d/1Ri7RBBsbIK9SRxA1KsHRejXbYBuL4CRRrbmEZRbwZpg/edit?usp=sharing>https://docs.google.com/document/d/1Ri7RBBsbIK9SRxA1KsHRejXbYBuL4CRRrbmEZRbwZpg/edit?usp=sharing


Agenda+ TTML2 processor behaviour vs TTML1

ID      State   Title   Person  Due Date        Associated with
ACTION-510<https://www.w3.org/AudioVideo/TT/tracker/actions/510>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/510/edit>     open    study TTT codebase and report on use of ttp:version to select processor behavior<https://www.w3.org/AudioVideo/TT/tracker/actions/510>  Glenn Adams     2017-11-23      TTML2<https://www.w3.org/AudioVideo/TT/tracker/products/4>



Agenda+ TTML2 Wide and Horizontal Review

ID      State   Title   Person  Due Date        Associated with
ACTION-508<https://www.w3.org/AudioVideo/TT/tracker/actions/508>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/508/edit>     open    Check if there are editorial/substantive labels for ttml2 issues and add if not.<https://www.w3.org/AudioVideo/TT/tracker/actions/508>  Thierry Michel  2017-10-12      TTML2<https://www.w3.org/AudioVideo/TT/tracker/products/4>

Can the above action be closed?

Are there still open Internationalisation review issues?

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+ IMSC (now incorporates Unicode ticket)

ID      State   Title   Person  Due Date        Associated with
ACTION-509<https://www.w3.org/AudioVideo/TT/tracker/actions/509>[(edit)]<https://www.w3.org/AudioVideo/TT/tracker/actions/509/edit>     open    Propose liaison text for the imsc 1.1 fpwd<https://www.w3.org/AudioVideo/TT/tracker/actions/509>        Pierre-Anthony Lemieux  2017-10-12      TTML IMSC 2.0<https://www.w3.org/AudioVideo/TT/tracker/products/10>

IMSC Tests released as v1.0.0 at https://github.com/w3c/imsc-tests/releases/tag/v1.0.0 .

IMSC 1.0.1
IMSC 1.0.1 CR published at https://www.w3.org/TR/2017/CR-ttml-imsc1.0.1-20170713/

IMSC 1.0.1 Implementation report at https://www.w3.org/wiki/TimedText/IMSC1_0_1_Implementation_Report

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.

IMSC Tests repository: https://github.com/w3c/imsc-tests


vNext Requirements

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

IMSCvNext Requirements repository: https://github.com/w3c/imsc-vnext-reqs


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


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

Glenn provided some feedback, to discuss.

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 IMSC pull requests:
Deprecate #progressivelyDecodable<https://github.com/w3c/imsc/pull/281>
Deprecates #writingMode-horizontal-rl in Image Profile<https://github.com/w3c/imsc/pull/270>
Updated profile signaling and resolution to match TTML2 semantics<https://github.com/w3c/imsc/pull/267>
Clarify fillLineGap semantics when applied to successive p elements<https://github.com/w3c/imsc/pull/269>
Clarify relationship to TTML2 and deprecation model<https://github.com/w3c/imsc/pull/266>
Open IMSC pull requests:
Clarify that tts:fillLineGap does not hide characters<https://github.com/w3c/imsc/pull/283>
New or discussed IMSC issues:
Improve itts:forcedDisplay description<https://github.com/w3c/imsc/issues/284>
What fillLineGap does/ affects<https://github.com/w3c/imsc/issues/254>
Deprecation of smpte:backgroundImage in favor of tt:image<https://github.com/w3c/imsc/issues/259>
Closed IMSC issues:
IMSC should reflect revised TTML 2 profile mechanism<https://github.com/w3c/imsc/issues/3>
Optionality of ttp:profile is overly lax in the case of image profile use.<https://github.com/w3c/imsc/issues/124>
Unable to normatively determine non-conformance when testing content constraints.<https://github.com/w3c/imsc/issues/125>
Is #writingMode-horizontal too general in image profile?<https://github.com/w3c/imsc/issues/147>
Should ittp:progressivelyDecodable be deprecated?<https://github.com/w3c/imsc/issues/272>

Merged IMSC Tests pull requests: None
Open IMSC Tests pull requests: None
New or discussed IMSC Tests issues:
Add HRM threshold test(s)<https://github.com/w3c/imsc-tests/issues/37>
Closed IMSC Tests issues:
EBU-TT-D tests<https://github.com/w3c/imsc-tests/issues/38>

Merged IMSCvNext Requirements pull requests:
Require profile singling<https://github.com/w3c/imsc-vnext-reqs/pull/10>
Update per Netflix whitepaper<https://github.com/w3c/imsc-vnext-reqs/pull/9>
Open IMSCvNext Requirements pull requests:
List features that are excluded from deprecation requirements<https://github.com/w3c/imsc-vnext-reqs/pull/12>
New or discussed IMSCvNext Requirements issues:
List features that are excluded from Requirement 1.3<https://github.com/w3c/imsc-vnext-reqs/issues/11>
is tts:textShadow required?<https://github.com/w3c/imsc-vnext-reqs/issues/13>
Specify deprecation model<https://github.com/w3c/imsc-vnext-reqs/issues/14>
Closed IMSCvNext Requirements issues:
Replave IMSCvNEXT with IMSC1.1<https://github.com/w3c/imsc-vnext-reqs/issues/7>
Is #ruby necessary, or #ruby-non-nested sufficient?<https://github.com/w3c/imsc-vnext-reqs/issues/2>
I would like to see a requirement to identify an IMSCvNext document as such<https://github.com/w3c/imsc-vnext-reqs/issues/5>
tts:fontVariant is needed to select half vs full variants in Japanese text<https://github.com/w3c/imsc-vnext-reqs/issues/6>
Update per Netflix input document<https://github.com/w3c/imsc-vnext-reqs/issues/8>
Is #textEmphasis necessary, or is #textEmphasis-minimal sufficient?<https://github.com/w3c/imsc-vnext-reqs/issues/3>

Agenda+ TTML issue assignment and progress tracking (20 minutes maximum)

We have now published the WD for WR however there are still many issues open, and we intend also to apply multiple fixes as already agreed for TTML1.

At the moment of writing this agenda, there are:

TTML1 issues:

  *   5 open issues with no milestone, none marked as discussed and agreed
  *   37 open issues in "3rd Ed" milestone, 15 marked as discussed and agreed
  *   11 open issues in "3rd Ed Test Suite" milestone, none marked as discussed and agreed

TTML2 issues:

  *   2 open issues on the Editor's CR Work List milestone, none of which has a PR and both of which are horizontal review comments marked WR-pending;
  *   101 open issues with no milestone, none of which has a PR open label.

Agenda+ TTML1 & TTML2 issues, actions, PRs, editorial actions etc

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-ttml2-20170630/


Merged TTML1 Pull Requests: None
Merged TTML2 Pull Requests:
Add document processing context override semantics for effective con…<https://github.com/w3c/ttml2/pull/468>
Open TTML1 Pull Requests:
Clarified cell metrics semantics for tts:textOutline<https://github.com/w3c/ttml1/pull/268>
Clarified tts:textDecoration inheritance<https://github.com/w3c/ttml1/pull/267>
Clarify semantics in absence of begin attribute<https://github.com/w3c/ttml1/pull/264>
Replaced ttp:frameRateMultipler with ttp:frameRateMultiplier<https://github.com/w3c/ttml1/pull/263>
Travis CI integration<https://github.com/w3c/ttml1/pull/262>
Clarify that the computed value of tts:lineHeight='normal' is 'normal'<https://github.com/w3c/ttml1/pull/260>
Clarify zIndex stacking context<https://github.com/w3c/ttml1/pull/259>
Clarified TAB character presentation semantics<https://github.com/w3c/ttml1/pull/258>
Tweak examples of Section O<https://github.com/w3c/ttml1/pull/257>
Clarify #backgroundColor re: block, inline and region semantics<https://github.com/w3c/ttml1/pull/256>
Open TTML2 Pull Requests:
Issue 0406 style semantics <https://github.com/w3c/ttml2/pull/470>
Fix gamma to 2.0<https://github.com/w3c/ttml2/pull/497>
Added note specifying the mapping of tt:image to smpte:backgroundImage<https://github.com/w3c/ttml2/pull/492>
Coalesce references to URI syntax into a new <uri> value expression (…<https://github.com/w3c/ttml2/pull/488>
Add clipBegin and clipEnd parameter attributes<https://github.com/w3c/ttml2/pull/486>
New TTML1 Issues:
Update stylesheet<https://github.com/w3c/ttml1/issues/265>
State that no epoch or epochOffset is defined<https://github.com/w3c/ttml1/issues/266>
New TTML2 Issues:
Invalid example for rubyOverhang<https://github.com/w3c/ttml2/issues/493>
Defer ruby overflow and ruby overhang to TTML3<https://github.com/w3c/ttml2/issues/494>
Claims section does not take into account ttp:contentProfiles and ttp:processorProfiles<https://github.com/w3c/ttml2/issues/495>
Change to Appendix Q.2<https://github.com/w3c/ttml2/issues/496>
Does showBackground="always" apply outside a region's begin and end times?<https://github.com/w3c/ttml2/issues/498>
Closed TTML1 Issues: None
Closed TTML2 Issues:
Computed active time of <p> with multiple <span> children in relation to showBackground="whenActive"<https://github.com/w3c/ttml2/issues/499>
Discussed TTML1 Issues:
Ambiguity regarding tab (U+0009) processing in significant whitespace.<https://github.com/w3c/ttml1/issues/235>
tts:overflow does not apply to the region area<https://github.com/w3c/ttml1/issues/239>
Clarify semantics of content bpd for inline and line areas.<https://github.com/w3c/ttml1/issues/212>
Clarify the semantics of tts:fontSize="2em".<https://github.com/w3c/ttml1/issues/214>
Clarify that tts:visibility hidden on ancestor doesn't prevent visible on descendant.<https://github.com/w3c/ttml1/issues/207>
tts:zIndex does not specify the root container zIndex value when "auto" is not specified<https://github.com/w3c/ttml1/issues/241>
Discussed TTML2 Issues:
Clarify/summarize use of foreign namespace elements and attributes.<https://github.com/w3c/ttml2/issues/387>
Ruby align 'withBase' semantics<https://github.com/w3c/ttml2/issues/248>
ARIB review of TTML2<https://github.com/w3c/ttml2/issues/452>
ISO JTC1/SC 29 review of TTML2<https://github.com/w3c/ttml2/issues/451>
DASH-IF review of TTML2<https://github.com/w3c/ttml2/issues/450>
CTA review of TTML2<https://github.com/w3c/ttml2/issues/449>
ITU-T Group 16 IPTV r review of TTML2<https://github.com/w3c/ttml2/issues/448>
3GPP review of TTML2<https://github.com/w3c/ttml2/issues/447>
Condition attribute missing in Core catalog.<https://github.com/w3c/ttml2/issues/440>
Duplicated text for attributes in TT Style Namespace.<https://github.com/w3c/ttml2/issues/438>
Change summary not up to date.<https://github.com/w3c/ttml2/issues/437>
Feedback on HDR compositing<https://github.com/w3c/ttml2/issues/400>
Mismatch between CSS and TTML2 text align styling on <span><https://github.com/w3c/ttml2/issues/238>
Delimiters in contentProfiles and processorProfiles possibly ambiguous<https://github.com/w3c/ttml2/issues/474>
Create CSS mapping for tts:fontShear based on CSS skew<https://github.com/w3c/ttml2/issues/471>
Privacy review umbrella issue<https://github.com/w3c/ttml2/issues/405>
NR is less than NB and NB is equal to 1<https://github.com/w3c/ttml2/issues/249>
Meaning of 'glyph area descendant'<https://github.com/w3c/ttml2/issues/236>
Definition of tts:fillLineGap does not match itts:fillLineGap as specified in IMSC 1.0.1.<https://github.com/w3c/ttml2/issues/429>
Add support for font variation settings<https://github.com/w3c/ttml2/issues/399>
Review references.<https://github.com/w3c/ttml2/issues/457>
Support for roll-up and paint-on captions.<https://github.com/w3c/ttml2/issues/443>
SMPTE response as TTML2 review<https://github.com/w3c/ttml2/issues/453>
Is ttp:version="2" required if ttp:contentProfiles is present? <https://github.com/w3c/ttml2/issues/435>

Focus topic(s) for this week

Issues

Iterate through open issues with no PR – decide action to take on each, e.g. defer to CR, defer to TTML.next, close etc.

If there are any issues that we decide need to be resolved before WR a proposal for the fix is needed ASAP (basically, it's too late already unless it can easily be agreed by the group).


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+ 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-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>



Discussion on WebVTT review feedback and next steps.

What are the WG's views on the dispositions generated by the CG?

Resolve to publish a new WD? (not strictly necessary)

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


Open Pull requests:
Add a "User agents that do not support CSS" conformance class.<https://github.com/w3c/webvtt/pull/389>
Add default color and background color names for applicable classes.<https://github.com/w3c/webvtt/pull/395>
Add some explanatory text about the different types of VTT files.<https://github.com/w3c/webvtt/pull/394>
Region clarification issue376<https://github.com/w3c/webvtt/pull/400>
Break up section 6 a bit more to make it more readable.<https://github.com/w3c/webvtt/pull/398>
Add a paragraph about the reasons why limiting styles.<https://github.com/w3c/webvtt/pull/410>
Add some introductory paragraphs to the Data model section.<https://github.com/w3c/webvtt/pull/409>
Merged Pull requests:
Add code of conduct as proposed by plc<https://github.com/w3c/webvtt/pull/407>
Clarify the "WebVTT cue settings list" definition.<https://github.com/w3c/webvtt/pull/388>
Fix up algorithm markup and improve a bikeshed style.<https://github.com/w3c/webvtt/pull/396>
Clarify line cue setting specification.<https://github.com/w3c/webvtt/pull/399>
Turn long alt text into longdesc.<https://github.com/w3c/webvtt/pull/408>
Update line height for lines in regions.<https://github.com/w3c/webvtt/pull/411>
New issues:
Feature Request: Hyperlink Support<https://github.com/w3c/webvtt/issues/412>
position, text_alignment issue<https://github.com/w3c/webvtt/issues/413>
The VTTRegion.lines attribute is a long type but cannot accept negative values<https://github.com/w3c/webvtt/issues/414>
Closed issues:
Change alt text for region diagram<https://github.com/w3c/webvtt/issues/386>
Wide Review Comment 2017: formatting issues<https://github.com/w3c/webvtt/issues/385>
Recently discussed issues:
Break up section 6 a bit more to make it more readable.<https://github.com/w3c/webvtt/pull/398>
Wide Review Comment 2017: No style property list for ::cue-region<https://github.com/w3c/webvtt/issues/374>
Wide Review Comment 2017: future styling options mechanism<https://github.com/w3c/webvtt/issues/373>
Wide Review Comment 2017: Algorithmic specification<https://github.com/w3c/webvtt/issues/384>
Wide Review Comment 2017: line cue setting direction<https://github.com/w3c/webvtt/issues/382>
Wide Review Comment 2017: positioning model<https://github.com/w3c/webvtt/issues/383>
Wide Review Comment 2017: default font size and line heights<https://github.com/w3c/webvtt/issues/371>
Wide Review Comment 2017: default background colour<https://github.com/w3c/webvtt/issues/372>
Wide Review Comment 2017: Timestamp syntax<https://github.com/w3c/webvtt/issues/370>
Region clarification issue376<https://github.com/w3c/webvtt/pull/400>
Add default color and background color names for applicable classes.<https://github.com/w3c/webvtt/pull/395>

Agenda+ HDR in PNG [placeholder agenda item]

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/


Merged pull requests: None
Open pull requests: None
New or discussed issues: None
Closed issues: None

Agenda+ HTMLCue proposal progress update.

Following break-out sessions etc should we close this agenda item and action?

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.

See also the notes from the TAG meeting (see agenda item above) at which the inability to instantiate TextTrackCue objects in most browsers was mentioned.



Agenda+ AOB

References

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






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