- From: Nigel Megitt <nigel.megitt@bbc.co.uk>
- Date: Thu, 13 Mar 2014 14:42:40 +0000
- To: Timed Text Working Group <public-tt@w3.org>
- Message-ID: <CF477437.1ABD5%nigel.megitt@bbc.co.uk>
Minutes available at: http://www.w3.org/2014/03/13-tt-minutes.html
[1]W3C
[1] http://www.w3.org/
- DRAFT -
Timed Text Working Group Teleconference
13 Mar 2014
See also: [2]IRC log
[2] http://www.w3.org/2014/03/13-tt-irc
Attendees
Present
pal, glenn, nigel, tmichel, plh, jdsmith
Regrets
none
Chair
nigel
Scribe
nigel
Contents
* [3]Topics
1. [4]Charter
2. [5]Action Items
3. [6]Change Proposals
4. [7]AOB
* [8]Summary of Action Items
__________________________________________________________
<trackbot> Date: 13 March 2014
<scribe> scribeNick: nigel
Charter
Action Items
action-268?
<trackbot> action-268 -- Nigel Megitt to Estimate timelines for
ttml 2 deliberables with glenn -- due 2014-02-27 -- OPEN
<trackbot>
[9]http://www.w3.org/AudioVideo/TT/tracker/actions/268
[9] http://www.w3.org/AudioVideo/TT/tracker/actions/268
<plh> TTML2 August 2014 LC, Oct 2014 CR, Jan 2015 PR, Feb 2015
Rec.
nigel: we discussed this on the call last week - see above. Any
comments?
plh: PR to Rec could take longer: a minimum of 4 weeks for PR
review and then 2 further weeks. No change needed in proposed
timeline. Early Jan PR -> late Feb Rec
nigel: any objections to adopting this proposal?
group: no objections
plh: CR->PR is a bit short because implementations are needed.
glenn: I anticipate at least one implementation, namely the TTV
verifier to test all the features of TTML2 to be completed
quite early in the process. I'll be updating it to verify the
spec.
... then there's the issue of other implementations supporting
it. TTML2 is a delta on TTML1 so it doesn't entail as many new
features as we had with TTML1 so I suspect it will
... be less time consuming.
plh: we used Flash, Silverlight and JS implementations for
TTML1. I don't know if we can rely on Flash or Silverlight this
time around.
jdsmith: Silverlight is not under active development. We're
transitioning to HTML5 so it's not likely that we'll enhance
TTML in Silverlight.
plh: Will there be any TTML implementation in IE?
jdsmith: we're not ready to make any announcements about this.
nigel: what about the JS implementation?
plh: I would expect that implementation to be easily
upgradeable to TTML2
tmichel: to clarify, what kind of implementation are we
expecting? Within browsers?
plh: I don't know. For instance Glenn was mentioning a
validator - is that a valid implementation? These things are
debatable.
glenn: formally because TTML defines both a presentation and
transformation profile any kind of transformation process is a
valid implementation so it should count.
plh: I'm biased as author of the JS implementation.
glenn: I'm also working with folks in Opera for implementation
of TTML in Chromium so I expect that to move forward and be
able to implement the TTML2 features, particularly through the
HTML/CSS mapping process.
<plh> [10]https://github.com/plehegar/ttml-js
[10] https://github.com/plehegar/ttml-js
plh: by the way I put the JS implementation on github for those
who are new - I did that 4-5 years ago. It's not maintained.
action-268: Proposed new timeline for TTML2 is August 2014 LC,
Oct 2014 CR, Jan 2015 PR, Feb 2015 Rec.
<trackbot> Notes added to action-268 Estimate timelines for
ttml 2 deliberables with glenn.
plh: after March 20 I will copy the charter and edit the
timeline. I will also make Silvia's requested edit.
close action-268
<trackbot> Closed action-268.
action-265?
<trackbot> action-265 -- Glenn Adams to Take algorithm from
ttml2 ed 8.2.13 tts:lineheight to css wg for review and
potential adoption. -- due 2014-03-13 -- PENDINGREVIEW
<trackbot>
[11]http://www.w3.org/AudioVideo/TT/tracker/actions/265
[11] http://www.w3.org/AudioVideo/TT/tracker/actions/265
glenn: we're not finalised on our thinking in this process and
I'm still researching this so want to close this
action-265: is related to issue-284
<trackbot> Notes added to action-265 Take algorithm from ttml2
ed 8.2.13 tts:lineheight to css wg for review and potential
adoption..
close action-265
<trackbot> Closed action-265.
action-272?
<trackbot> action-272 -- Glenn Adams to Add notes to cp15 for
those items that have already been implemented, where notes
point at relevant change set -- due 2014-03-13 -- PENDINGREVIEW
<trackbot>
[12]http://www.w3.org/AudioVideo/TT/tracker/actions/272
[12] http://www.w3.org/AudioVideo/TT/tracker/actions/272
close action-272
<trackbot> Closed action-272.
action-273
<trackbot> action-273 -- Nigel Megitt to Add dst note to next
agenda -- due 2014-03-13 -- OPEN
<trackbot>
[13]http://www.w3.org/AudioVideo/TT/tracker/actions/273
[13] http://www.w3.org/AudioVideo/TT/tracker/actions/273
close action-273
<trackbot> Closed action-273.
Change Proposals
AOB
jdsmith: Change Proposals - lots are OPEN. What's the timeline?
nigel: Good question - since we've just changed LC from April
to August that now gives us until July to complete the change
proposal issues
Summary of Action Items
[End of minutes]
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Received on Thursday, 13 March 2014 14:43:11 UTC