W3C

- DRAFT -

Timed Text Working Group Teleconference

05 Dec 2013

See also: IRC log

Attendees

Present
nigel, Plh, Glenn, Mike, tmichel, pal, mijordan, Jerry_Smith_(Microsoft)
Regrets
Andreas_Tai, Frans_de_Jong
Chair
nigel
Scribe
plh

Contents


<trackbot> Date: 05 December 2013

<tmichel> Hi, I will attend the meeting, but I must leave at 16h25 for about 20 minutes to get my son at school. We then rejoin.

<scribe> scribe: plh

IANA Registration

action-223?

<trackbot> action-223 -- Philippe Le Hégaret to Find iana tracking number for resubmit of mime type registration -- due 2013-10-24 -- CLOSED

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/223

Nigel: Mike, you contacted IANA and didn't a response?

Mike: that's correct
... about 2 weeks ago
... so I pinged again

plh: I'll ping our official IETF contact in a week if we don't get answers

close action-223

<trackbot> Closed action-223.

action-88?

<trackbot> action-88 -- Mike Dolan to Make sure the TTML media type is properly registered for Issue-175. -- due 2013-10-31 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/88

Charter

action-241?

<trackbot> action-241 -- Philippe Le Hégaret to Edit charter by next tuesday -- due 2013-11-22 -- CLOSED

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/241

close action-241

<trackbot> Closed action-241.

plh: s/WebVTT/WebVTT 1.0/ in the deliverables
... fixed typo

Nigel: discussion within EBU about dependency wording

action-242?

<trackbot> action-242 -- Nigel Megitt to Action mark_vickers to ask ig to provide input in external groups list in new charter -- due 2013-11-22 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/242

Nigel: some responded that ATSC needs to be listed
... will follow up with plh

<scribe> ACTION: plh to add ATSC to the TTML charter [recorded in http://www.w3.org/2013/12/05-tt-minutes.html#action01]

<trackbot> Created ACTION-248 - Add atsc to the ttml charter [on Philippe Le Hégaret - due 2013-12-12].

Nigel: some debate on how to proceed on the charter
... David Singer is working on it
... the issue which is holding us up is the document license one
... maybe we can pull back, we would be able to proceed
... we're getting there
... for example, IMSC is blocked at the moment

Pierre: at the f2f meeting, we had a thorough review of the charter and everybody seemed happy
... struggling to udnerstand why there is further delay

Nigel: yes, but document license is an issue
... hoping we can revert

<nigel> http://www.w3.org/2013/10/timed-text-charter.html

Pierre: which version are we looking at?

plh: problem is that the charter doesn't allow the use of the CC-BY license

Pierre: my understanding was that it can take a lot of time to resolve this
... how long are we going to wait?

Nigel: we need confirmation that not using an open license is acceptable
... from David

Mike: what's the purpose of listing the external groups?

plh: getting reviews from them

Mike: concerned with DVB and ATSC. no individual/human there who cares
... so we have those groups but no one care to review those documents

Nigel: DVB has a subtitle group
... which will be brought back to life
... with ATSC, I can see your concern

Mike: problem with ATSC is internal
... my first choice would be to remove DVB and ATSC, since our list is not prohibitive
... if those orgs don't care, I'd prefer not to list them
... how about we leave them off for now?

Nigel: do we need to receive a reply?

plh: we don't need to, but we should contact them

Nigel: adding ATSC came out of the WebTV IG

Mike: this came out of a new member from WebTV IG, but no real group within ATSC

Thierry: we can't force folks to review our documents

Mike: ok, that's fine

--> http://www.w3.org/2001/11/StdLiaison Liaison page

Pierre: when do we expect the AC review to happen?

Nigel: I'll continue to talk to David and get a resolution on this, within the next calendar week
... but I'm dependent on the response from David

Actions pending review

action-245?

<trackbot> action-245 -- Philippe Le Hégaret to Tell mike contact details for proceeding with iana registration -- due 2013-11-28 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/245

close action-245

<trackbot> Closed action-245.

action-247?

<trackbot> action-247 -- Nigel Megitt to Send text version of tpac minutes to public list - tracker will then combine the issues and actions and associate them automatically. -- due 2013-11-28 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/247

close action-247

<trackbot> Closed action-247.

Actions Overdue

Glenn: I just returned from oversea so no progress today but should ahve by next week

action-220?

<trackbot> action-220 -- Pierre-Anthony Lemieux to Investigate actual css behavior further regarding whether line height of individual lines are affected by font size on line as opposed to maximum over paragraph -- due 2013-10-24 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/220

Glenn: I suggest to reassign it to me

<tmichel> I must leave now for about 20 minutes to get my son at school. Will then rejoin.

Pierre: this was assigned to me. I did some work on it
... all browsers use the largest font on the line to compute the line height.

Nigel: Glenn, please review this and we'll close this next week

Glenn: I'll comment on the action
... since I have some new input

action-224?

<trackbot> action-224 -- Pierre-Anthony Lemieux to Query mike on priority for issue-72 -- due 2013-10-31 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/224

issue-72?

<trackbot> issue-72 -- Smooth scrolling by means of reference area offset -- closed

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/72

<glenn> ACTION: glenn to follow up on action-220, possibly opening new issue [recorded in http://www.w3.org/2013/12/05-tt-minutes.html#action02]

<trackbot> Created ACTION-249 - Follow up on action-220, possibly opening new issue [on Glenn Adams - due 2013-12-12].

Nigel: what should be the priority of issue-72?

Mike: we resolved this in second edition

close action-224

<trackbot> Closed action-224.

action-230?

<trackbot> action-230 -- Philippe Le Hégaret to Get a review from pf sooner rather than later -- due 2013-11-30 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/230

http://lists.w3.org/Archives/Public/public-tt/2013Oct/0067.html

Glenn: this seems premature for TTML 2

close action-230

<trackbot> Closed action-230.

<glenn> action-237?

<trackbot> action-237 -- Pierre-Anthony Lemieux to Review with cff folk -- due 2013-11-18 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/237

Nigel: we created in relation to i18n and rendering rules, languages, etc.
... related xml:lang

issue-296?

<trackbot> issue-296 -- Remove xml:lang placement restrictions from IMSC -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/296

<glenn> action-237: related to issue-296

<trackbot> Notes added to action-237 Review with cff folk.

Pierre: my action is done

close action-237

<trackbot> Closed action-237.

action-238?

<trackbot> action-238 -- Pierre-Anthony Lemieux to Follow up on issue-295 -- due 2013-11-18 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/238

Pierre: this is underway
... plan is to remove Annex B
... and move Annex A into a Note and express it as a superset of CLDR

(sp?)

action-242?

<trackbot> action-242 -- Nigel Megitt to Action mark_vickers to ask ig to provide input in external groups list in new charter -- due 2013-11-22 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/242

close action-242

<trackbot> Closed action-242.

action-243?

<trackbot> action-243 -- Pierre-Anthony Lemieux to Edit dsinger's proposed wording which captures the intent. -- due 2013-11-22 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/243

Pierre: that's related to issue 295
... didn't find issue with the proposed wording

action-244?

<trackbot> action-244 -- Pierre-Anthony Lemieux to Proceed with work to investigate deltas. if time doesn't allow the fallback is to remove annex a. -- due 2013-11-22 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/244

action-246?

<trackbot> action-246 -- Nigel Megitt to Take deliverables of draft charter to tag for scrutiny -- due 2013-11-28 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/246

Nigel: was waiting for a stable draft

Due Next Week

Jerry: I'm working on my action...

<nigel> action-164?

<trackbot> action-164 -- Jerry Smith to Investigate interop issues using CSS familyName constructs -- due 2013-12-05 -- OPEN

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/164

Glenn: I can send you some email about the issue
... since we don't use CSS syntax, we use XML
... there is an escaping mechanism in CSS that we didn't use
... unicode escaping mechanism
... the question is: if you have a TTML document, and serialize it in CSS, you'll need to be careful

Jerry: this seems that it was a cautious choice, there is a note in the spec

Glenn: I made the choice, but would like feedback from implementers

Jerry: I'll close the loop with Sean

<tmichel> I amp now back.

Mike: do we have an issue here?

Glenn: a potential one

issues discussed

issue-286?

<trackbot> issue-286 -- Extend the background area behind rendered text to improve readability -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/286

Nigel: slightly extending the background does improve readability, raised within EBU

<nigel> http://lists.w3.org/Archives/Public/public-tt/2013Dec/att-0000/mim-xmlsubs0149r01.ebutts-padding-diagram.pdf

Nigel: we were concerned on this behavior on arbitrary spans. we relaxed the requirement to be on each line
... the pdf illustrates our intent
... proposal is to add an attribute

Glenn: didn't have a chance to look at it yet
... we can use padding on span
... not about repetition of padding at line breaks

Nigel: CSS box declaration break is at risk
... lack of browser implementation
... and we wuld need it

<nigel> http://www.w3.org/TR/css3-background/#box-decoration-break

Glenn: there is some support for them

in opera and chrome

Nigel: we'll come back to this one

issue-288?

<trackbot> issue-288 -- Rules for splitting and accumulating documents -- open

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/288

Mike: is this related to the temporal extend of the document?

Nigel: yes

http://lists.w3.org/Archives/Public/public-tt/2013Nov/att-0026/mim-xmlsubs0133r05.EBU-TT_Segmentation.pdf

Mike: this is adding complication and don't prefer it
... would prefer to have hints and metadata
... this piece of content is going to continue in an other document, please watch decoder

<nigel> Mike: not in favour of constraining the temporal containment, would prefer a hint mechanism

<glenn> i need to drop as well

<nigel> Mike: happy to provide a proposal

<nigel> nigel: one issue is the scope of uniqueness of xml:id

<nigel> mike: yes we could typecast the id and add extra uniqueness rules as a hint

<nigel> ... This may be useful in the archive context too

<nigel> ... It's not a good idea to try to compute deterministically 'sameness' by comparing text, position, styling etc.

<nigel> action mike to make proposal re segmentation hints to reflector

<trackbot> Created ACTION-250 - Make proposal re segmentation hints to reflector [on Mike Dolan - due 2013-12-12].

<mike> clarification - not in favour of *relaxing* the temporal constraints

<nigel> Mike: regrets for next week

Summary of Action Items

[NEW] ACTION: glenn to follow up on action-220, possibly opening new issue [recorded in http://www.w3.org/2013/12/05-tt-minutes.html#action02]
[NEW] ACTION: plh to add ATSC to the TTML charter [recorded in http://www.w3.org/2013/12/05-tt-minutes.html#action01]
 
[End of minutes]

Minutes formatted by David Booth's scribe.perl version 1.138 (CVS log)
$Date: 2013/12/05 16:32:20 $

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This is scribe.perl Revision: 1.138  of Date: 2013-04-25 13:59:11  
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Guessing input format: RRSAgent_Text_Format (score 1.00)

Succeeded: s/plkh/plh/
Succeeded: s/TLDR/CLDR/
Found Scribe: plh
Inferring ScribeNick: plh
Default Present: nigel, Plh, Glenn, Mike, tmichel, pal, mijordan, [Microsoft]
Present: nigel Plh Glenn Mike tmichel pal mijordan Jerry_Smith_(Microsoft)
Regrets: Andreas_Tai Frans_de_Jong
Found Date: 05 Dec 2013
Guessing minutes URL: http://www.w3.org/2013/12/05-tt-minutes.html
People with action items: glenn plh

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