- From: Nigel Megitt <nigel.megitt@bbc.co.uk>
- Date: Thu, 17 Jan 2019 16:56:15 +0000
- To: Public TTWG List <public-tt@w3.org>
- Message-ID: <D866641F.3AF88%nigel.megitt@bbc.co.uk>
Thanks all for attending today’s TTWG meeting. Minutes can be found at https://www.w3.org/2019/01/17-tt-minutes.html
In text format:
[1]W3C
[1] http://www.w3.org/
Timed Text Working Group Teleconference
17 Jan 2019
[2]Agenda
[2] https://github.com/w3c/ttwg/issues/12
Attendees
Present
Cyril, Nigel, Glenn, Andreas, Gary, Matt, Pierre
Regrets
Chair
nigel
Scribe
Cyril
Contents
* [3]Topics
1. [4]This meeting
2. [5]TTML Profile Registry Actions, Pull Requests and
Issues
3. [6]TTWG Future requirements
4. [7]Joint f2f meeting with EBU Timed Text, Feb 1 2019
5. [8]TTML2
6. [9]WebVTT
7. [10]AOB
* [11]Summary of Action Items
* [12]Summary of Resolutions
__________________________________________________________
<scribe> scribe: Cyril
This meeting
<glenn> back
nigel: we can discuss TTML Profile registry if needed
<glenn> no
nigel: seems not
... we can discuss feature requirements
... I added a label to the repository
... then we can discuss the joint F2F
... it does not have an agenda yet
... there has been activity this week but nothing specific
marked on agenda for TTML2 or WebVTT?
... I have some AoB items
... group homepage and weekly agendas
glenn: I see that Matt from Ericsson has joined us
Matt: Matt Simpson, Red bee media, provider of captioning,
audio description and dubbed media
... involved in EBU nearly 8 years
TTML Profile Registry Actions, Pull Requests and Issues
nigel: nothing to discuss
TTWG Future requirements
nigel: I've added a label for "has a business test"
... last week we had a reminder that we want to have tests for
new features
... the equivalent for requirements is "has a business test"
<nigel>
[13]https://github.com/w3c/tt-reqs/issues/15#issuecomment-45511
6509
[13] https://github.com/w3c/tt-reqs/issues/15#issuecomment-455116509
nigel: I've added an example to issue #15
... the point is to make sure once we have the feature, is that
it passes the business test
glenn: the phrase "non-unicode image" is a strange construction
... a character or a symbol that has no unicode character, e.g.
gaijin characters can be found on Wikipedia
... when we introduced images in TTML2, this use case was
mentioned as a possible driving force
... so I'm supporting your statement with a tweak
pal: I added a comment because I think there is confusion
between what you had in mind and the issue on IMSC,
... I think there are 2 use cases, with different requirements,
even if they end up with the same solution
... I don't know what you want #15 to be
... re images in IMSC, I will ping the commenter because I need
to understand what they have in mind
nigel: point well made regarding merging the 2 points
... I'll take an action to separate the 2 requirements: text
profile vs image profile
pal: I would say one is transmitting complete programs and the
other one supplementing graphics
cyril: also, to me there is a difference between displaying an
image and displaying an image inline
pal: Digital Cinema supports images, but for inline graphics,
it works by embedding a font file
... it integrates well with the existing rendering
nigel: the task of converting SVG into a font file is not to be
underestimated (perhaps I don't know enough about it)
cyril: you can embed SVG in font files
[14]https://helpx.adobe.com/fonts/using/ot-svg-color-fonts.html
[14] https://helpx.adobe.com/fonts/using/ot-svg-color-fonts.html
glenn: inline images in IMSC is not supported because the
profiles are distinct
... but the idea of using SVG to store a glyph outline is
certainly feasible
... there was the SVG font format
... but not implemented and people moved away
... I prefer using the idea of embedding a font than images
... the embedded font can be extremely small
nigel: one of the reason I think it did not meet the
requirements
... is because you need to map your input image format into a
font
... it's not what I've been asked for as a requirement
glenn: if you put an image in, it does not scale well
... it's inadvisable to use raster images for that
pal: in addition to resolution scaling issues, if it's a
character, there is no special case
... the twitter character could be rotated, etc.
nigel: SVG is preferred because it scales well
cyril: this is very similar to emoji fonts
nigel: no because they have assigned unicode characters
glenn: nothing in TTML prevents the use of non-BMP character
codes
... we should have access to all characters
pal: including private areas
glenn: private use area
cyril: it would be good to clarify if the images are
multi-colored or single-colored
nigel: the private area would work but that's not standard
... we envisage fully colored images
ack
scribe: I just wanted to raise the presence of that label and
encourage people to write a testable business statement,
verifiable once it's been implemented
Joint f2f meeting with EBU Timed Text, Feb 1 2019
glenn: since we are working closely with EBU, I presume you
posed the questions about their requirements
nigel: yes, EBU has visibility that the window was open for new
requirements
... also because of the shared membership
... the agenda is looking light at the moment
... thanks Andreas for organizing the 2 diners
... I take the action to sketch up the agenda
TTML2
nigel: nothing to discuss
WebVTT
nigel: nothing to discuss
AOB
nigel: if people have topics to discuss at the F2F, they should
raise them
glenn: I would like to have a discussion on TTML2 2nd Ed vs
TTML 3
... we need to have guidelines or understanding on how it will
go
... I would like to bring the idea of modularization
... to make TTML3 lightweight version to introduce
modularization
nigel: regarding AOB, first one is the home page
... the source for the group home page is now served with
github pages, just for that home page
... we have direct control of it in the TTML repository
... I've done some cleaning this week
<nigel> [15]TTWG Home page
[15] https://www.w3.org/AudioVideo/TT/
nigel: the Emmy has been pulled off
... I've added the code of conduct and put a link to github,
meetings and the pulse of github
... everything for WebVTT tests
atai2: why do we still need the issue and action trer?
... is it for past issues?
... we should mark it as deprecated
nigel: good point, it should go, we don't need it, because we
can do everything with GitHub
... about our meetings and the agendas
... I switched to a light email on the basis that less is more
... but it may still be too much
... I'm open to feed
... I used to have upcoming future meetings, I've taken that
out
... each meeting is an issue so I've put a link to the project
board
cyril: I could live with a very simple email confirming that
the meeting happens with a link to GitHub
nigel: [group silence]
Summary of Action Items
Summary of Resolutions
[End of minutes]
__________________________________________________________
Minutes manually created (not a transcript), formatted by
David Booth's [16]scribe.perl version 1.154 ([17]CVS log)
$Date: 2019/01/17 16:49:28 $
[16] http://dev.w3.org/cvsweb/~checkout~/2002/scribe/scribedoc.htm
[17] http://dev.w3.org/cvsweb/2002/scribe/
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Received on Thursday, 17 January 2019 16:56:41 UTC