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Re: {minutes} TTWG Meeting 2/10/2014

From: Glenn Adams <glenn@skynav.com>
Date: Thu, 2 Oct 2014 15:46:04 -0600
Message-ID: <CACQ=j+cm6bd=UZK3_N2QS6RqSPAgxXsZyxiz1uwBXVe49k4rpw@mail.gmail.com>
To: Nigel Megitt <nigel.megitt@bbc.co.uk>
Cc: Timed Text Working Group <public-tt@w3.org>
On Thu, Oct 2, 2014 at 9:36 AM, Nigel Megitt <nigel.megitt@bbc.co.uk> wrote:

>  Thanks for all for attending today's meeting. Minutes in HTML format can
> be found at http://www.w3.org/2014/10/02-tt-minutes.html
>
>  Minutes in text format:
>
>     [1]W3C
>
>       [1] http://www.w3.org/
>
>                                - DRAFT -
>
>                 Timed Text Working Group Teleconference
>
> 02 Oct 2014
>
>    See also: [2]IRC log
>
>       [2] http://www.w3.org/2014/10/02-tt-irc
>
> Attendees
>
>    Present
>           glenn, courtney, tmichel, pal, nigel, jdsmith
>
>    Regrets
>           frans_de_jong
>
>    Chair
>           nigel
>
>    Scribe
>           nigel
>
> Contents
>
>      * [3]Topics
>          1. [4]This Agenda
>          2. [5]Santa Clara F2F TPAC
>          3. [6]IMSC 1 WD External liaisons
>          4. [7]Action items pending review
>          5. [8]Actions overdue
>          6. [9]Action items due next week
>          7. [10]TTML2 FPWD
>          8. [11]Issues Pending Review
>      * [12]Summary of Action Items
>      __________________________________________________________
>
>    <trackbot> Date: 02 October 2014
>
>    <scribe> scribeNick: nigel
>
> This Agenda
>
>    nigel: notes that Further Ahead section needs to extend into
>    November.
>
> Santa Clara F2F TPAC
>
>    [13]http://www.w3.org/wiki/TimedText/tpac2014
>
>      [13] http://www.w3.org/wiki/TimedText/tpac2014
>
>    nigel: I've updated the wiki page. Please fill in the Attendee
>    section.
>    ... For agenda items, please go through me.
>
>    glenn: I expect to have more on TTML2 as I wrap up some more
>    things.
>
>    nigel: Lists members and observers registered for TPAC. I plan
>    to allow all observer requests.
>
> IMSC 1 WD External liaisons
>
>    nigel: I've sent liaisons internally to all the relevant W3C
>    groups on our charter.
>    ... I've drafted an external liaison and discussed some edits
>    with Pierre. The main question is who should we write to.
>    ... There's a very long list of potential recipients, taking
>    into account the charter and the liaisons. There are 38
>    liaisons including 27 for WAI.
>
>    pal: It would be a useful reference point to consider the wide
>    review requirement in the 2005 process for LC -> CR.
>    ... I'm concerned that we could send this to too many groups.
>
>    glenn: I agree that we should only send to those groups that we
>    can expect a timely response from.
>
>    tmichel: I agree too - the Director will be satisfied if we
>    only talk to the groups on the charter.
>
>    [14]http://www.w3.org/2001/11/StdLiaison.html
>
>      [14] http://www.w3.org/2001/11/StdLiaison.html
>
>    nigel: I would propose to send to the charter groups and the
>    liaisons noted as interested in Timed Text and Web and TV.
>
>    pal: I'm concerned about generating too many conversations.
>
>    glenn: DLNA may just come back to me, if at all. HbbTV may be
>    interested in it though.
>    ... Remember that we need to demonstrate primarily that there's
>    been wide review and secondly some technical feedback.
>
>    nigel: I've decided to send to the charter list and the
>    liaisons listed for Timed Text and Web and TV.
>    ... Summarises content of note.
>
>    <inserted> pal: the notes above did not capture my input
>    correctly re: sending an email blast to multiple groups without
>    a clear knowledge of whether the group is interested (and/or
>    who the right contact is): (a) it generates work for both TTWG
>    and the target group with only limited chances of feedback, (b)
>    many of these groups have members that are already members of
>    W3C and TTWG and (c) it looks like it is not required from a
>    process perspective
>
> Action items pending review
>
>    action-236?
>
>    <trackbot> action-236 -- Glenn Adams to Review consistent use
>    of "root temporal extent" in both ttml 2 and ttml 1 se -- due
>    2014-08-31 -- PENDINGREVIEW
>
>    <trackbot>
>    [15]http://www.w3.org/AudioVideo/TT/tracker/actions/236
>
>      [15] http://www.w3.org/AudioVideo/TT/tracker/actions/236
>
>    nigel: The link doesn't work for me.
>
>    glenn: This is a known issue with the Mercurial server, and
>    occurs sporadically.
>    ... I introduced the mediaOffset, however we have some ongoing
>    discussion on that.
>
>    close action-236
>
>    <trackbot> Closed action-236.
>
>    glenn: The biggest question for me on this whole topic is: what
>    is the meaning of BEGIN(document) - is it 0s always or
>    something else? Nigel's asked that too.
>    ... I'm still considering this.
>    ... In other words is BEGIN(document)-ORIGIN(document)=0 in all
>    cases or is it possibly non-zero in some cases.
>
>    action-286?
>
>    <trackbot> action-286 -- Glenn Adams to Send an email to
>    public-tt describing the ttv hosting site at w3c -- due
>    2014-08-31 -- PENDINGREVIEW
>
>    <trackbot>
>    [16]http://www.w3.org/AudioVideo/TT/tracker/actions/286
>
>      [16] http://www.w3.org/AudioVideo/TT/tracker/actions/286
>
>    close action-286
>
>    <trackbot> Closed action-286.
>
>    glenn: To get the w3c version back up I need to interact with
>    some staff - I'm not sure when I can do that. Use the backup
>    site in the meantime.
>
>    action-287?
>
>    <trackbot> action-287 -- Glenn Adams to Elaborate on wording in
>    ยง4 on namespace extension in ttml2 and as an errata to ttml1 --
>    due 2014-08-31 -- PENDINGREVIEW
>
>    <trackbot>
>    [17]http://www.w3.org/AudioVideo/TT/tracker/actions/287
>
>      [17] http://www.w3.org/AudioVideo/TT/tracker/actions/287
>
>    glenn: I couldn't identify an issue that needed a specific
>    change here.
>    ... I reviewed the notes from when this was created.
>
>    close action-287
>
>    <trackbot> Closed action-287.
>
>    action-320?
>
>    <trackbot> action-320 -- Glenn Adams to Review
>    [18]https://www.w3.org/wiki/ttml/codecsregistry w.r.t. recent
>    ttml2 changes in profile definition mechanisms -- due
>    2014-08-21 -- PENDINGREVIEW
>
>      [18] https://www.w3.org/wiki/ttml/codecsregistry
>
>    <trackbot>
>    [19]http://www.w3.org/AudioVideo/TT/tracker/actions/320
>
>      [19] http://www.w3.org/AudioVideo/TT/tracker/actions/320
>
>    glenn: I made a minor editorial note to the codecs registry
>    page. I'd note that we haven't concluded on this topic.
>    ... This should be an agenda topic at the F2F, because we
>    should have the right people present, hopefully.
>
>    <pal> +1
>
>    <scribe> ACTION: nigel Add codecs registry to F2F agenda at
>    TPAC [recorded in
>    [20]http://www.w3.org/2014/10/02-tt-minutes.html#action01]
>
>    <trackbot> Created ACTION-336 - Add codecs registry to f2f
>    agenda at tpac [on Nigel Megitt - due 2014-10-09].
>
>    close action-320
>
>    <trackbot> Closed action-320.
>
> Actions overdue
>
>    nigel: These are both mine and I haven't done them.
>
> Action items due next week
>
>    Action-332?
>
>    <trackbot> Action-332 -- Glenn Adams to Add schema support for
>    ISD vocabulary -- due 2014-10-01 -- OPEN
>
>    <trackbot>
>    [21]http://www.w3.org/AudioVideo/TT/tracker/actions/332
>
>      [21] http://www.w3.org/AudioVideo/TT/tracker/actions/332
>
>    glenn: I have coded the newly defined ISD spec into the TTV and
>    created a TTX transformer tool that allows ISDs to be created
>    from a TTML file.
>    ... In this way I'm verifying the viability of the newly
>    defined vocabulary.
>
>    action-333?
>
>    <trackbot> action-333 -- Pierre-Anthony Lemieux to Create a one
>    pager to cover the plan for the director's meeting for taking
>    imsc1 to cr. -- due 2014-10-02 -- OPEN
>
>    <trackbot>
>    [22]http://www.w3.org/AudioVideo/TT/tracker/actions/333
>
>      [22] http://www.w3.org/AudioVideo/TT/tracker/actions/333
>
>    nigel: Let's postpone this one due to the change in plan for
>    IMSC.
>
> TTML2 FPWD
>
>    nigel: We planned to do this last week; that didn't happen.
>
>    glenn: I'd like to retarget this to around the time of TPAC, to
>    get some substantial pieces in, primarily the ISD creation
>    rules and the HTML mapping.
>
>    nigel: Okay I'll rejig the timeline and discuss with you. I'm
>    tempted to go just after TPAC so the group can feedback if
>    necessary.
>
>    glenn: Sounds good. I'm making good progress on a variety of
>    issues and it's better to get more in than less, if we can.
>    ... Also, once we have the FPWD published it's simple to
>    publish new ones - we don't have to go long between them.
>    ... I'm expecting to close the P1 CPs by FPWD.
>
> Issues Pending Review
>
>    issue-228?
>
>    <trackbot> issue-228 -- Ruby text support -- pending review
>
>    <trackbot>
>    [23]http://www.w3.org/AudioVideo/TT/tracker/issues/228
>
>      [23] http://www.w3.org/AudioVideo/TT/tracker/issues/228
>
>    glenn: I mapped 3 style properties that map to the CSS ruby
>    display styles for the base and different container types and
>    delimiter.
>    ... And there are position and align attributes. This gives us
>    a good baseline to work with and supports the basic Ruby text
>    needs.
>    ... There's one open technical issue that was posted by pal for
>    SMPTE compatibility, which is the need to specify the offset of
>    the container boxes from the base box.
>    ... I didn't do that because HTML and CSS don't support that at
>    the moment. We could define properties but they wouldn't have a
>    mapping.
>
>    nigel: I also noted that it uses a syntax different to the HTML
>    syntax, and requires nested spans. I don't have an issue with
>    that though.
>
>    pal: So now would be a good time to review?
>
>    glenn: yes.
>    ... There are different flavours of syntax in XHTML and HTML5
>    and the CSS formulation shows that no markup is needed, just
>    some style properties.
>    ... I took the more CSS approach to make the Ruby more
>    orthogonal via styling than adding new markup with the extra
>    overhead for that.
>
>    pal: The SMPTE submission from ST4287 is in use today with
>    content being made today with that Ruby markup so we should
>    have a good rationale for
>    ... ignoring the recommendations there.
>
>    glenn: The proposal didn't say to adopt the syntax from SMPTE.
>
>    pal: Re the need to offset, that caught my attention. We should
>    be careful about not supporting features from things that are
>    actually in use today.
>
>    glenn: If what is proposed is functionally inadequate then I
>    suggest that issues are raised with the specifics.
>
> I have went ahead and added a tts:rubyOffset property even though it
doesn't appear that it has a mapping in CSS (yet). See [1].

[1] https://dvcs.w3.org/hg/ttml/rev/c62837d89619


>
>    nigel: I suggest pal reviews and we leave this as Pending
>    Review in the meantime.
>    ... Adjourns meeting. We have 1 hour scheduled for next week.
>    Thanks everyone.
>
> Summary of Action Items
>
>    [NEW] ACTION: nigel Add codecs registry to F2F agenda at TPAC
>    [recorded in
>    [24]http://www.w3.org/2014/10/02-tt-minutes.html#action01]
>
>    [End of minutes]
>      __________________________________________________________
>
>
>     Minutes formatted by David Booth's [25]scribe.perl version
>     1.138 ([26]CVS log)
>     $Date: 2014-10-02 15:34:23 $
>      __________________________________________________________
>
>      [25] http://dev.w3.org/cvsweb/~checkout~/2002/scribe/scribedoc.htm
>      [26] http://dev.w3.org/cvsweb/2002/scribe/
>
>
Received on Thursday, 2 October 2014 21:46:52 UTC

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