RE: {agenda} TTWG Meeting 5/6/2014

Regrets as I am in Asia.

 

From: Nigel Megitt [mailto:nigel.megitt@bbc.co.uk] 
Sent: Wednesday, June 04, 2014 9:40 AM
To: Timed Text Working Group
Subject: {agenda} TTWG Meeting 5/6/2014

 

This meeting is scheduled for up to 60m. There's a lot to cover…

 

Our teleconference is scheduled with reference to Boston Time, the correct
time of this teleconference in your locale may change.

 

Please check
http://www.timeanddate.com/worldclock/fixedtime.html?iso=20140605T10
<http://www.timeanddate.com/worldclock/fixedtime.html?iso=20140605T10&p1=43>
&p1=43

  

Thursdays 10:00am-11:00am Boston local

 

Zakim Bridge +1.617.761.6200, conference 8865 ("TTML")

IRC: server: irc.w3.org, port: 6665, channel: #tt Web gateway to
:http://www.w3.org/2001/01/cgi-irc

 

Agenda+ Assign Roles

 

Chair: Nigel Megitt

 

Scribe: [to assign during meeting]

 

Regrets: 

 

Activity since last meeting: IMSC issues discussed

 

Agenda+ Prioritise discussion for this meeting

 

Check-point for order of topics – I'd suggest:

1. MIME codecs parameter if we're quorate on this topic

2. Profiles and features (change proposal 12 etc), with
extensions/restrictions etc as recently added, 

3. TPAC F2F,

4. SMPTE liaison,

5. Change proposal 2,

6. Pending Review issues,

7. Change proposal 7,

8. I can't believe we'll get this far!

 

And stop when time runs out – I'm happy to set and impose time limits on
these topics if members would like to take that approach.

 

Agenda+ MPEG liaison re MIME Codecs parameter

 

This is scheduled for a major discussion for this topic since all main
contributors will hopefully attend.

 


ISSUE-305 <https://www.w3.org/AudioVideo/TT/tracker/issues/305>
<https://www.w3.org/AudioVideo/TT/tracker/issues/305/edit> Image removed by
sender. (edit)
Profile short names

OPEN

Register of TTML profiles and short names
<https://www.w3.org/AudioVideo/TT/tracker/issues/305> 

2014-05-01

	1

Timed Text Working Group <https://www.w3.org/AudioVideo/TT/tracker/> 

 


ISSUE-280 <https://www.w3.org/AudioVideo/TT/tracker/issues/280>
<https://www.w3.org/AudioVideo/TT/tracker/issues/280/edit> Image removed by
sender. (edit)
nested-profiles

OPEN

Add ability to define a profile from multiple profiles.
<https://www.w3.org/AudioVideo/TT/tracker/issues/280> 

2013-09-06

TTML2

0

 


 <https://www.w3.org/AudioVideo/TT/tracker/actions/284> 
ACTION-284 <https://www.w3.org/AudioVideo/TT/tracker/actions/284/edit> Image
removed by sender. (edit)

pending review

Create the registry page
<https://www.w3.org/AudioVideo/TT/tracker/actions/284> 

Glenn Adams

2014-05-01

 


 <http://www.w3.org/AudioVideo/TT/tracker/actions/290> 
ACTION-290 <http://www.w3.org/AudioVideo/TT/tracker/actions/290/edit> Image
removed by sender. (edit)

open

Describe the history for how we got to the signalling needed for mpeg that
came from dece for issue-305.
<http://www.w3.org/AudioVideo/TT/tracker/actions/290> 

Mike Dolan

2014-05-29

 

Liaison in mail archive at [1] and text reproduced in ACTION-282. Response
at [2].

 

Agenda+ TPAC F2F

 

We've been told we can't have Monday and Friday but Monday and Thursday is
an option. Agree to take it? Survey results at [3].

 

Agenda+ SMPTE Liaison

 

Liaison at [4].

 

Agenda+ Action items pending review

 


ID

State

Title

Person

Due Date

Associated with


ACTION-232 <https://www.w3.org/AudioVideo/TT/tracker/actions/232>
<https://www.w3.org/AudioVideo/TT/tracker/actions/232/edit> Image removed by
sender. (edit)

pending review

Consider also defining @validation on ttp:profile, in addition to (override)
tt:tt <https://www.w3.org/AudioVideo/TT/tracker/actions/232> 

Glenn Adams

2014-04-01

	

ACTION-254 <https://www.w3.org/AudioVideo/TT/tracker/actions/254>
<https://www.w3.org/AudioVideo/TT/tracker/actions/254/edit> Image removed by
sender. (edit)

pending review

Add errata note for ttml1 pointing at constraint in smil prohibiting dur of
zero, add normative text to ttml2
<https://www.w3.org/AudioVideo/TT/tracker/actions/254> 

Glenn Adams

2014-04-01

zero duration <https://www.w3.org/AudioVideo/TT/tracker/issues/299> 


ACTION-291 <https://www.w3.org/AudioVideo/TT/tracker/actions/291>
<https://www.w3.org/AudioVideo/TT/tracker/actions/291/edit> Image removed by
sender. (edit)

pending review

Find the related issue that describes the need to restrict or extend
individual profile features
<https://www.w3.org/AudioVideo/TT/tracker/actions/291> 

Nigel Megitt

2014-05-29

	

 

 

Agenda+ Action items overdue and due next week

 


ID

State

Title

Person

Due Date

Associated with


ACTION-207 <https://www.w3.org/AudioVideo/TT/tracker/actions/207>
<https://www.w3.org/AudioVideo/TT/tracker/actions/207/edit> Image removed by
sender. (edit)

open

Add round-down clarification to
<https://www.w3.org/AudioVideo/TT/tracker/actions/207> "closest" language,
see issue-259

Glenn Adams

2014-04-01

	

ACTION-234 <https://www.w3.org/AudioVideo/TT/tracker/actions/234>
<https://www.w3.org/AudioVideo/TT/tracker/actions/234/edit> Image removed by
sender. (edit)

open

Explore box-decoration-break in response to issue-286
<https://www.w3.org/AudioVideo/TT/tracker/actions/234> 

Glenn Adams

2014-04-01

	

ACTION-236 <https://www.w3.org/AudioVideo/TT/tracker/actions/236>
<https://www.w3.org/AudioVideo/TT/tracker/actions/236/edit> Image removed by
sender. (edit)

open

Review consistent use of
<https://www.w3.org/AudioVideo/TT/tracker/actions/236> "root temporal
extent" in both ttml 2 and ttml 1 se

Glenn Adams

2014-04-01

	

ACTION-258 <https://www.w3.org/AudioVideo/TT/tracker/actions/258>
<https://www.w3.org/AudioVideo/TT/tracker/actions/258/edit> Image removed by
sender. (edit)

open

Work with pal to resolve edits needed for issue-259 comments
<https://www.w3.org/AudioVideo/TT/tracker/actions/258> 

Glenn Adams

2014-04-01

	

ACTION-285 <https://www.w3.org/AudioVideo/TT/tracker/actions/285>
<https://www.w3.org/AudioVideo/TT/tracker/actions/285/edit> Image removed by
sender. (edit)

open

Implement proposed errata in issue-304
<https://www.w3.org/AudioVideo/TT/tracker/actions/285> 

Glenn Adams

2014-05-01

Non-Standard Unqualified Attributes
<https://www.w3.org/AudioVideo/TT/tracker/issues/304> 


ACTION-286 <https://www.w3.org/AudioVideo/TT/tracker/actions/286>
<https://www.w3.org/AudioVideo/TT/tracker/actions/286/edit> Image removed by
sender. (edit)

open

Send an email to public-tt describing the ttv hosting site at w3c
<https://www.w3.org/AudioVideo/TT/tracker/actions/286> 

Glenn Adams

2014-05-01

	

ACTION-287 <https://www.w3.org/AudioVideo/TT/tracker/actions/287>
<https://www.w3.org/AudioVideo/TT/tracker/actions/287/edit> Image removed by
sender. (edit)

open

Elaborate on wording in §4 on namespace extension in ttml2 and as an errata
to ttml1 <https://www.w3.org/AudioVideo/TT/tracker/actions/287> 

Glenn Adams

2014-05-08

	

ACTION-290 <https://www.w3.org/AudioVideo/TT/tracker/actions/290>
<https://www.w3.org/AudioVideo/TT/tracker/actions/290/edit> Image removed by
sender. (edit)

open

Describe the history for how we got to the signalling needed for mpeg that
came from dece for issue-305.
<https://www.w3.org/AudioVideo/TT/tracker/actions/290> 

Mike Dolan

2014-05-29

	

 


ACTION-292 <https://www.w3.org/AudioVideo/TT/tracker/actions/292>
<https://www.w3.org/AudioVideo/TT/tracker/actions/292/edit> Image removed by
sender. (edit)

open

Add wording to describe semantics of forceddisplay in imsc 1 for issue-312
<https://www.w3.org/AudioVideo/TT/tracker/actions/292> 

Pierre-Anthony Lemieux

2014-06-05

forcedDisplay should be in ttm
<https://www.w3.org/AudioVideo/TT/tracker/issues/312> 


ACTION-293 <https://www.w3.org/AudioVideo/TT/tracker/actions/293>
<https://www.w3.org/AudioVideo/TT/tracker/actions/293/edit> Image removed by
sender. (edit)

open

Research appropriate namespace for forceddisplay feature in imsc 1 for
issue-312 <https://www.w3.org/AudioVideo/TT/tracker/actions/293> 

Pierre-Anthony Lemieux

2014-06-05

forcedDisplay should be in ttm
<https://www.w3.org/AudioVideo/TT/tracker/issues/312> 


ACTION-294 <https://www.w3.org/AudioVideo/TT/tracker/actions/294>
<https://www.w3.org/AudioVideo/TT/tracker/actions/294/edit> Image removed by
sender. (edit)

open

Create a sign-up wbs survey for geneva.
<https://www.w3.org/AudioVideo/TT/tracker/actions/294> 

Nigel Megitt

2014-06-05

	

ACTION-295 <https://www.w3.org/AudioVideo/TT/tracker/actions/295>
<https://www.w3.org/AudioVideo/TT/tracker/actions/295/edit> Image removed by
sender. (edit)

open

Socialise the geneva f2f meeting amongst the webvtt community
<https://www.w3.org/AudioVideo/TT/tracker/actions/295> 

David Singer

2014-06-05

	

 

 

Agenda+ Issues discussed and raised over the past week

 


ID

State

Title

Raised on

Product

Open Actions


ISSUE-312 <https://www.w3.org/AudioVideo/TT/tracker/issues/312>
<https://www.w3.org/AudioVideo/TT/tracker/issues/312/edit> Image removed by
sender. (edit)
forcedDisplay should be in ttm

OPEN

forcedDisplay attribute is metadata so should be in ttm not tts namespace
<https://www.w3.org/AudioVideo/TT/tracker/issues/312> 

2014-05-21

TTML IMSC 1.0

2


ISSUE-318 <https://www.w3.org/AudioVideo/TT/tracker/issues/318>
<https://www.w3.org/AudioVideo/TT/tracker/issues/318/edit> Image removed by
sender. (edit)
HRM glyph copy assumes no sub-pixel positioning

PENDING REVIEW

Hypothetical Render Model glyph copy assumes no sub-pixel positioning
<https://www.w3.org/AudioVideo/TT/tracker/issues/318> 

2014-05-22

TTML IMSC 1.0

0


ISSUE-320 <https://www.w3.org/AudioVideo/TT/tracker/issues/320>
<https://www.w3.org/AudioVideo/TT/tracker/issues/320/edit> Image removed by
sender. (edit)
Is normative SMPTE 2052 reference okay?

PENDING REVIEW

Is normative SMPTE 2052 reference okay?
<https://www.w3.org/AudioVideo/TT/tracker/issues/320> 

2014-05-23

TTML IMSC 1.0

0

 


ID

State

Title

Raised on

Product

Open Actions


ISSUE-306 <https://www.w3.org/AudioVideo/TT/tracker/issues/306>
<https://www.w3.org/AudioVideo/TT/tracker/issues/306/edit> Image removed by
sender. (edit)
Fractional time expressions in N.2 media timeBase

RAISED

Appendix N.2 omits fractional time expressions
<https://www.w3.org/AudioVideo/TT/tracker/issues/306> 

2014-05-02

TTML 1.0

0


ISSUE-313 <https://www.w3.org/AudioVideo/TT/tracker/issues/313>
<https://www.w3.org/AudioVideo/TT/tracker/issues/313/edit> Image removed by
sender. (edit)
Presented Region is informative only

RAISED

Presented Region section is informative only
<https://www.w3.org/AudioVideo/TT/tracker/issues/313> 

2014-05-21

TTML IMSC 1.0

0


ISSUE-314 <https://www.w3.org/AudioVideo/TT/tracker/issues/314>
<https://www.w3.org/AudioVideo/TT/tracker/issues/314/edit> Image removed by
sender. (edit)
Temporally active is not defined for regions

RAISED

Temporally active is not defined for regions
<https://www.w3.org/AudioVideo/TT/tracker/issues/314> 

2014-05-21

TTML 1.0

0


ISSUE-315 <https://www.w3.org/AudioVideo/TT/tracker/issues/315>
<https://www.w3.org/AudioVideo/TT/tracker/issues/315/edit> Image removed by
sender. (edit)
Maximum number of regions should be a processor constraint

RAISED

Maximum number of regions should be a processor constraint
<https://www.w3.org/AudioVideo/TT/tracker/issues/315> 

2014-05-21

TTML IMSC 1.0

0


ISSUE-317 <https://www.w3.org/AudioVideo/TT/tracker/issues/317>
<https://www.w3.org/AudioVideo/TT/tracker/issues/317/edit> Image removed by
sender. (edit)
IMSC should not require frame alignment

RAISED

IMSC should not require frame alignment
<https://www.w3.org/AudioVideo/TT/tracker/issues/317> 

2014-05-22

TTML IMSC 1.0

0


ISSUE-319 <https://www.w3.org/AudioVideo/TT/tracker/issues/319>
<https://www.w3.org/AudioVideo/TT/tracker/issues/319/edit> Image removed by
sender. (edit)
HRM should be a processor compliance test

RAISED

HRM should be a processor compliance test and allow different levels of
complexity for different use cases
<https://www.w3.org/AudioVideo/TT/tracker/issues/319> 

2014-05-23

TTML IMSC 1.0

0


ISSUE-321 <https://www.w3.org/AudioVideo/TT/tracker/issues/321>
<https://www.w3.org/AudioVideo/TT/tracker/issues/321/edit> Image removed by
sender. (edit)

RAISED

typo - s/ttp:feature/ttp:extension/ in 5th paragraph of 6.1.5
<https://www.w3.org/AudioVideo/TT/tracker/issues/321> 

2014-05-24

TTML 1.0 (Editorial)

0

 

 

Agenda+ Issues Pending Review

 


ID

State

Title

Raised on

Product

Open Actions


ISSUE-206 <https://www.w3.org/AudioVideo/TT/tracker/issues/206>
<https://www.w3.org/AudioVideo/TT/tracker/issues/206/edit> Image removed by
sender. (edit)
profile combination

PENDING REVIEW

Add ttp:profileCombination parameter
<https://www.w3.org/AudioVideo/TT/tracker/issues/206> 

2013-05-12

TTML2

0


ISSUE-261 <https://www.w3.org/AudioVideo/TT/tracker/issues/261>
<https://www.w3.org/AudioVideo/TT/tracker/issues/261/edit> Image removed by
sender. (edit)

PENDING REVIEW

signaling document profile conformance is separate from decoder presentation
requirements <https://www.w3.org/AudioVideo/TT/tracker/issues/261> 

2013-07-11

TTML2

0


ISSUE-263 <https://www.w3.org/AudioVideo/TT/tracker/issues/263>
<https://www.w3.org/AudioVideo/TT/tracker/issues/263/edit> Image removed by
sender. (edit)

PENDING REVIEW

profile feature set may not match intended feature constraints
<https://www.w3.org/AudioVideo/TT/tracker/issues/263> 

2013-07-17

TTML Simple Delivery Profile for Closed Captions (US)

0


ISSUE-266 <https://www.w3.org/AudioVideo/TT/tracker/issues/266>
<https://www.w3.org/AudioVideo/TT/tracker/issues/266/edit> Image removed by
sender. (edit)

PENDING REVIEW

add ability for instance documents to declare what profile(s) it conforms to
<https://www.w3.org/AudioVideo/TT/tracker/issues/266> 

2013-08-08

TTML2

0


ISSUE-280 <https://www.w3.org/AudioVideo/TT/tracker/issues/280>
<https://www.w3.org/AudioVideo/TT/tracker/issues/280/edit> Image removed by
sender. (edit)
nested-profiles

PENDING REVIEW

Add ability to define a profile from multiple profiles.
<https://www.w3.org/AudioVideo/TT/tracker/issues/280> 

2013-09-06

TTML2

0


ISSUE-299 <https://www.w3.org/AudioVideo/TT/tracker/issues/299>
<https://www.w3.org/AudioVideo/TT/tracker/issues/299/edit> Image removed by
sender. (edit)
zero duration

PENDING REVIEW

dur must be greater than zero
<https://www.w3.org/AudioVideo/TT/tracker/issues/299> 

2013-12-26

TTML 1.0

0


ISSUE-305 <https://www.w3.org/AudioVideo/TT/tracker/issues/305>
<https://www.w3.org/AudioVideo/TT/tracker/issues/305/edit> Image removed by
sender. (edit)
Profile short names

PENDING REVIEW

Register of TTML profiles and short names
<https://www.w3.org/AudioVideo/TT/tracker/issues/305> 

2014-05-01

	0


ISSUE-308 <https://www.w3.org/AudioVideo/TT/tracker/issues/308>
<https://www.w3.org/AudioVideo/TT/tracker/issues/308/edit> Image removed by
sender. (edit)
Related video object reference missing

PENDING REVIEW

It is unclear how a document is associated with a related video object
<https://www.w3.org/AudioVideo/TT/tracker/issues/308> 

2014-05-02

TTML IMSC 1.0

0


ISSUE-316 <https://www.w3.org/AudioVideo/TT/tracker/issues/316>
<https://www.w3.org/AudioVideo/TT/tracker/issues/316/edit> Image removed by
sender. (edit)
Wording of 5.2

PENDING REVIEW

Wording of 5.2 doesn't make sense
<https://www.w3.org/AudioVideo/TT/tracker/issues/316> 

2014-05-21

TTML IMSC 1.0

0


ISSUE-318 <https://www.w3.org/AudioVideo/TT/tracker/issues/318>
<https://www.w3.org/AudioVideo/TT/tracker/issues/318/edit> Image removed by
sender. (edit)
HRM glyph copy assumes no sub-pixel positioning

PENDING REVIEW

Hypothetical Render Model glyph copy assumes no sub-pixel positioning
<https://www.w3.org/AudioVideo/TT/tracker/issues/318> 

2014-05-22

TTML IMSC 1.0

0


ISSUE-320 <https://www.w3.org/AudioVideo/TT/tracker/issues/320>
<https://www.w3.org/AudioVideo/TT/tracker/issues/320/edit> Image removed by
sender. (edit)
Is normative SMPTE 2052 reference okay?

PENDING REVIEW

Is normative SMPTE 2052 reference okay?
<https://www.w3.org/AudioVideo/TT/tracker/issues/320> 

2014-05-23

TTML IMSC 1.0

0

 

Agenda+ Change Proposals – progress and review

 

Change Proposal 12 [7] has not been updated but Glenn has made changes that
address many of the issues in there [7].

Can we agree to set the default @validationAction to "warn" and make it a
recommendation to the validator rather than mandatory?

 

Change Proposal 2 [6] has been implemented and has been pending review for
over 1 month

Can we mark as CLOSED – IMPLEMENTED?

 

Change Proposal Index is at [5].

Which Change Proposals would owners like to progress next? There are 20 open
CPs.

 

Timeline updated in 13th Mar meeting: 

January-March: Clean up and complete CPs

April-July: Draft, iterate and edit solutions to CP issues

August: Last Call

 

Agenda+ AOB

 

 

References

 

[1] MPEG Liaison re Codecs parameter
http://lists.w3.org/Archives/Public/public-tt/2014Apr/0005.html 

[2] W3C response to MPEG Liaison re Codecs parameter
http://lists.w3.org/Archives/Public/public-tt/2014Apr/0025.html 

[3] TPAC survey results
https://www.w3.org/2002/09/wbs/34314/TPAC2014Planning/results

[4] SMPTE Liaison
http://lists.w3.org/Archives/Public/public-tt/2014Jun/0000.html 

[5] Change Proposals at http://www.w3.org/wiki/TTML/ChangeProposalIndex 

[6] Change Proposal 2 https://www.w3.org/wiki/TTML/changeProposal002

[7] Change Proposal 12 https://www.w3.org/wiki/TTML/changeProposal012

[8] Glenn's email re major update to profile related material
http://lists.w3.org/Archives/Public/public-tt/2014May/0111.html

Tracker http://www.w3.org/AudioVideo/TT/trackerTTML 

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

 

 

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Received on Wednesday, 4 June 2014 22:21:20 UTC