- From: Nigel Megitt <nigel.megitt@bbc.co.uk>
- Date: Thu, 17 Jul 2014 15:14:25 +0000
- To: Timed Text Working Group <public-tt@w3.org>
- Message-ID: <CFEDA687.2030F%nigel.megitt@bbc.co.uk>
Thanks to all for attending today's meeting. The minutes are available at http://www.w3.org/2014/07/17-tt-minutes.html
Text format minutes:
[1]W3C
[1] http://www.w3.org/
- DRAFT -
Timed Text Working Group Teleconference
17 Jul 2014
See also: [2]IRC log
[2] http://www.w3.org/2014/07/17-tt-irc
Attendees
Present
glenn, Thierry, nigel, atai, Courtney, pal
Regrets
plh
Chair
nigel
Scribe
nigel
Contents
* [3]Topics
1. [4]Prioritise discussion for this meeting
2. [5]Geneva f2f
3. [6]Action Items
4. [7]Issues
* [8]Summary of Action Items
__________________________________________________________
<trackbot> Date: 17 July 2014
<scribe> scribeNick: nigel
Prioritise discussion for this meeting
thierry: Can we put a deadline for the F2F?
nigel: I've opened the questionnaire until 15th August.
thierry: Can we encourage everyone to attend and/or complete
the registration form?
[9]https://www.w3.org/2002/09/wbs/34314/TTWG_Geneva_F2F_Plannin
g/
[9] https://www.w3.org/2002/09/wbs/34314/TTWG_Geneva_F2F_Planning/
Geneva f2f
Courtney: re the agenda, spending a long time on the code/tests
for the transforms is really important so I'm glad it's on the
agenda.
... I'm largely happy with the agenda as it stands.
[10]https://www.w3.org/wiki/TimedText/geneva2014
[10] https://www.w3.org/wiki/TimedText/geneva2014
atai: We want to propose a mapping from a restricted TTML
subset to WebVTT
glenn: One point of advice for that mapping: The best approach
is to map TTML document to an ISD sequence, and then map the
individual ISDs to VTT cues.
... my plan is to include in TTML2 a formal definition of an
interchangeable form of a sequence of ISD documents. I'll
probably define a format: either a single XML document where
each child is an ISD document
... and maybe a second format that is a ZIPped sequence of ISDs
with a specific naming format to sequence them in the ZIP file.
nigel: That's an interesting point because there's an
alternative which is to create a cue per piece of text with a
distinct lifetime, by semantic analysis of the document. I can
see merits to both.
glenn: I may have some working code by the F2F to drive some
discussion.
Action Items
action-296?
<trackbot> action-296 -- Glenn Adams to Define default for
@validationaction to be warn if @validation is optional;
otherwise, default is abort -- due 2014-06-12 -- PENDINGREVIEW
<trackbot>
[11]http://www.w3.org/AudioVideo/TT/tracker/actions/296
[11] http://www.w3.org/AudioVideo/TT/tracker/actions/296
close action-296
<trackbot> Closed action-296.
action-302
<trackbot> action-302 -- Nigel Megitt to Re-review issue-313 --
due 2014-06-26 -- PENDINGREVIEW
<trackbot>
[12]http://www.w3.org/AudioVideo/TT/tracker/actions/302
[12] http://www.w3.org/AudioVideo/TT/tracker/actions/302
issue-313?
<trackbot> issue-313 -- Presented Region section is informative
only -- open
<trackbot>
[13]http://www.w3.org/AudioVideo/TT/tracker/issues/313
[13] http://www.w3.org/AudioVideo/TT/tracker/issues/313
close action-302
<trackbot> Closed action-302.
issue-313: An acceptable proposal would be to change the
wording in §4.6.1 specifically to define the term "Presented
region".
<trackbot> Notes added to issue-313 Presented Region section is
informative only.
action-303?
<trackbot> action-303 -- Nigel Megitt to Add priority column to
change proposal index -- due 2014-06-26 -- PENDINGREVIEW
<trackbot>
[14]http://www.w3.org/AudioVideo/TT/tracker/actions/303
[14] http://www.w3.org/AudioVideo/TT/tracker/actions/303
[15]https://www.w3.org/wiki/TTML/ChangeProposalIndex
[15] https://www.w3.org/wiki/TTML/ChangeProposalIndex
nigel: I've added the priority column - please could the owners
of each change proposal now review each and edit the index page
to assign the appropriate priority value.
... We can use this to choose which issues and changes to
tackle soonest.
close action-303
<trackbot> Closed action-303.
<scribe> ACTION: glenn Assign priorities to change proposals
owned by glenn [recorded in
[16]http://www.w3.org/2014/07/17-tt-minutes.html#action01]
<trackbot> Created ACTION-304 - Assign priorities to change
proposals owned by glenn [on Glenn Adams - due 2014-07-24].
<scribe> ACTION: pal Assign priorities to change proposals
owned by pal [recorded in
[17]http://www.w3.org/2014/07/17-tt-minutes.html#action02]
<trackbot> Created ACTION-305 - Assign priorities to change
proposals owned by pal [on Pierre-Anthony Lemieux - due
2014-07-24].
<scribe> ACTION: jdsmith Assign priorities to change proposals
owned by jdsmith [recorded in
[18]http://www.w3.org/2014/07/17-tt-minutes.html#action03]
<trackbot> Created ACTION-306 - Assign priorities to change
proposals owned by jdsmith [on Jerry Smith - due 2014-07-24].
<scribe> ACTION: mdolan Assign priorities to change proposals
owned by mdolan [recorded in
[19]http://www.w3.org/2014/07/17-tt-minutes.html#action04]
<trackbot> Created ACTION-307 - Assign priorities to change
proposals owned by mdolan [on Mike Dolan - due 2014-07-24].
action-207?
<trackbot> action-207 -- Glenn Adams to Add round-down
clarification to "closest" language, see issue-259 -- due
2014-04-01 -- PENDINGREVIEW
<trackbot>
[20]http://www.w3.org/AudioVideo/TT/tracker/actions/207
[20] http://www.w3.org/AudioVideo/TT/tracker/actions/207
glenn: I've implemented this clarification.
... I've clarified the distinction between scalar and vector
component comparisons for border and padding. There was also a
comment about rounding up vs down.
... For extent and lineHeight we round up so I added a comment
on extent that explains the rationale for this.
nigel: Looks good to me.
pal: I'll take a look.
action-258?
<trackbot> action-258 -- Glenn Adams to Work with pal to
resolve edits needed for issue-259 comments -- due 2014-04-01
-- PENDINGREVIEW
<trackbot>
[21]http://www.w3.org/AudioVideo/TT/tracker/actions/258
[21] http://www.w3.org/AudioVideo/TT/tracker/actions/258
glenn: this is related to action-207.
Issues
issue-263?
<trackbot> issue-263 -- profile feature set may not match
intended feature constraints -- pending review
<trackbot>
[22]http://www.w3.org/AudioVideo/TT/tracker/issues/263
[22] http://www.w3.org/AudioVideo/TT/tracker/issues/263
glenn: I think we're looking for Mike's review of this.
issue-316?
<trackbot> issue-316 -- Wording of 5.2 doesn't make sense --
pending review
<trackbot>
[23]http://www.w3.org/AudioVideo/TT/tracker/issues/316
[23] http://www.w3.org/AudioVideo/TT/tracker/issues/316
close issue-316
<trackbot> Closed issue-316.
issue-309?
<trackbot> issue-309 -- Image profile needs to permit text
equivalent -- open
<trackbot>
[24]http://www.w3.org/AudioVideo/TT/tracker/issues/309
[24] http://www.w3.org/AudioVideo/TT/tracker/issues/309
nigel: We met the accessibility folk on Monday. The feeling is
that as long as there's availability of a text equivalent and a
method to find it then the WCAG requirement is met.
pal: Reviewing the changes I've made:
[25]https://dvcs.w3.org/hg/ttml/raw-file/tip/ttml-ww-profiles/t
tml-ww-profiles.html
[25] https://dvcs.w3.org/hg/ttml/raw-file/tip/ttml-ww-profiles/ttml-ww-profiles.html
scribe: in §3.1 the text is clarified to say that distributors
should provide a text form of image data that the system can
find automatically.
... in §4.5.4 there's an altText attribute to allow a text
string to be added.
nigel: The normative text doesn't mention accessibility -
shouldn't it?
pal: The harm for IMSC to say MAY have accessibility is we
don't want accessibility /only/ to be in the alt text because
it's better to have a complete alternate text profile document.
... Of course there's no prohibition on usage of altText but
it's not at all a recommendation.
glenn: defining the contents as #PCDATA is appropriate for an
element that can contain text.
atai: This section says "{any attribute not in the IMSC 1.0
Metadata namespace}" which would allow any attribute in TTML 1
namespace, which doesn't seem right.
glenn: That's correct - the table near the top of TTML defines
all the tt namespaces that should not be permitted here.
pal: I'll change it to "any attribute not in the default
namespace or in the TT namespace or in the IMSC 1.0 namespace"
... John Birch provided some text re WCAG so I've moved that to
Annex C.
nigel: The term "application" has been used in various places
normatively so I think it needs to be defined.
pal: Or I could remove it.
nigel: Either way - but application is used in several places
now.
... I wonder if we should say "In order to meet the guidelines
of [WCAG20] the following considerations apply:"
pal: I like that.
... I'll create an issue prior to committing those changes.
... I've added in Annex D.5 the #altText extension designator
is defined.
nigel: I think the #altText extension needs to be added to
§6.4.
pal: I'll add that.
glenn: I just added a new issue for IMSC - issue-326.
issue-317?
<trackbot> issue-317 -- IMSC should not require frame alignment
-- open
<trackbot>
[26]http://www.w3.org/AudioVideo/TT/tracker/issues/317
[26] http://www.w3.org/AudioVideo/TT/tracker/issues/317
pal: I've added a note that hopefully captures the use case.
... in §4.4
nigel: We're close on this one but I need to come back with
some proposals for edits.
... adjourns meeting
Summary of Action Items
[NEW] ACTION: glenn Assign priorities to change proposals owned
by glenn [recorded in
[27]http://www.w3.org/2014/07/17-tt-minutes.html#action01]
[NEW] ACTION: jdsmith Assign priorities to change proposals
owned by jdsmith [recorded in
[28]http://www.w3.org/2014/07/17-tt-minutes.html#action03]
[NEW] ACTION: mdolan Assign priorities to change proposals
owned by mdolan [recorded in
[29]http://www.w3.org/2014/07/17-tt-minutes.html#action04]
[NEW] ACTION: pal Assign priorities to change proposals owned
by pal [recorded in
[30]http://www.w3.org/2014/07/17-tt-minutes.html#action02]
[End of minutes]
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Received on Thursday, 17 July 2014 15:15:09 UTC