IRC log of tt on 2017-07-20
Timestamps are in UTC.
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- logging to http://www.w3.org/2017/07/20-tt-irc
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- RRSAgent, make logs public
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- Zakim, this will be TTML
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- ok, trackbot
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- Meeting: Timed Text Working Group Teleconference
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- Date: 20 July 2017
- 14:00:27 [nigel]
- scribe: nigel
- 14:00:38 [nigel]
- Present: Nigel, Pierre, Andreas
- 14:00:40 [nigel]
- Regrets: Glenn
- 14:00:44 [nigel]
- Chair: Nigel
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- Audio sounds great
- 14:02:04 [pal]
- I am in the middle of another meeting so cannot really participate
- 14:02:22 [nigel]
- s/I am in the middle of another meeting so cannot really participate/
- 14:02:30 [nigel]
- s/Audio sounds great/
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- 14:03:39 [nigel]
- Topic: This meeting
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- Nigel: Today, we will look at the PQ in PNG Note, and the CSS features in TTML wiki page,
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- .. which I need to be able to share with TAG tomorrow prior to meeting them next week,
- 14:05:48 [nigel]
- Nigel: I don't think there's much to discuss for IMSC or TTML or WebVTT this week. AOB?
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- Andreas: No other business from me.
- 14:06:35 [nigel]
- Topic: HDR in PNG
- 14:06:49 [nigel]
- Nigel: We said we'd propose to publish this week. Any feedback received?
- 14:07:01 [nigel]
- Pierre: I've not received any further feedback.
- 14:07:09 [nigel]
- Nigel: I don't have anything to add on this.
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- Andreas: Not from me either.
- 14:07:31 [nigel]
- PROPOSAL: Publish the png-hdr-pq document as a WG Note
- 14:08:05 [nigel]
- Nigel: I'm not sure about the practicalities of publishing this.
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- Pierre: Can we use echidna?
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- Nigel: I don't know@
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- s/@/!
- 14:08:23 [nigel]
- Pierre: I'm happy to follow up with Thierry.
- 14:08:52 [nigel]
- .. The Echidna tool says it can publish Notes with a group decision and a token.
- 14:09:02 [nigel]
- .. I should be able to request the token if it doesn't have one already and just do it.
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- Nigel: Great.
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- RESOLUTION: Publish the png-hdr-pq document as a WG Note.
- 14:10:32 [nigel]
- rrsagent, make minutes
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- I have made the request to generate http://www.w3.org/2017/07/20-tt-minutes.html nigel
- 14:11:26 [nigel]
- Nigel: I raised this as an issue on the repo:
- 14:11:33 [nigel]
- -> https://github.com/w3c/png-hdr-pq/issues/5 Publish as a Note #5
- 14:11:58 [nigel]
- Topic: CSS styling equivalents of TTML2 and IMSC features
- 14:12:05 [nigel]
- action-497?
- 14:12:05 [trackbot]
- action-497 -- Nigel Megitt to Invite csswg to joint meeting at tpac 2017, with list of topics. -- due 2017-06-15 -- OPEN
- 14:12:05 [trackbot]
- http://www.w3.org/AudioVideo/TT/tracker/actions/497
- 14:12:20 [nigel]
- Nigel: I've been in discussion with Alan Stearns about this - there has been a bit of early
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- .. discussion of CSS WG feedback for TTML2 in the CSSWG reflector.
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- .. I've also updated the CSS Requirements wiki page.
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- -> https://www.w3.org/wiki/TTML/CSSRequirements TTML and IMSC styling features that are hard to reproduce in CSS
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- Present+ Thierry
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- Nigel: I think this is okay now but I don't know if anyone has any comments on it or suggestions
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- .. for anything to change?
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- Andreas: I haven't had the chance to review it.
- 14:18:05 [nigel]
- Nigel: I plan to share it by end of play tomorrow so any feedback really needs to come soon please.
- 14:18:37 [nigel]
- Pierre: David Baron went to some length previously.
- 14:19:00 [nigel]
- -> https://lists.w3.org/Archives/Public/www-style/2016Nov/0106.html David Baron email feedback 2016-11-23
- 14:19:32 [nigel]
- -> https://lists.w3.org/Archives/Public/www-style/2017Jul/0007.html Florian's email discussion thread to www-style 2017-07-14
- 14:20:03 [nigel]
- Pierre: It would be good to involve them in the discussion at least.
- 14:20:14 [nigel]
- Nigel: Yes, I assume David will be there at TAG next week but I'm not certain.
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- .. It's a good point I should make sure his analysis is represented in the wiki page.
- 14:22:14 [nigel]
- .. I also noticed that there are some attributes like rubyOverhang and rubyOverhang class
- 14:22:30 [nigel]
- .. that are missing from Dae's list on imsc#218 so I pinged him there to ask but he hasn't
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- .. yet replied.
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- Pierre: Do you have textOutline on there too?
- 14:22:46 [nigel]
- Nigel: No, can that not be done with text-shadow?
- 14:23:04 [nigel]
- Pierre: No, it cannot be done in CSS except with one proprietary (Apple) extension.
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- Nigel: OK I'll add that.
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- .. Oh, rubyOffset seems missing too.
- 14:24:03 [nigel]
- Pierre: I think everything else you've already covered or it has good support already.
- 14:24:41 [nigel]
- Nigel: Oh I've just spotted inlineAreaBreak too, which is needed for linePadding - that's
- 14:24:58 [nigel]
- .. something that needs an extension relative to CSS, but I think that's already being
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- .. discussed in CSSWG if I remember rightly.
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- .. If there's anything else you see, especially in terms of accuracy of language, please let
- 14:25:58 [nigel]
- .. me know and/or edit the document to fix it.
- 14:26:31 [nigel]
- Pierre: I think the key step is to get agreement to include subtitles and captions in the core
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- .. functionality of CSS, then the details can follow from there, with give and take as needed.
- 14:28:55 [nigel]
- Nigel: It's interesting to compare tts:displayAlign with CSS, and how it can be implemented.
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- 14:29:32 [nigel]
- Pierre: It turns out that you need to use flex to meet the vertical positioning and I believe
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- .. horizontal positioning too.
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- .. Flex is the only way to preserve aspect ratio as well.
- 14:30:41 [nigel]
- .. To make TTML work reliably in my experience you must use flex.
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- .. You may be able to do it with tables but that has other implications, like its not
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- .. recommended - everyone says don't do it!
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- Nigel: Okay I have some actions to tweak the document for now, as well as incorporating
- 14:32:02 [nigel]
- .. any review comments over the next 24 hours.
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- Topic: IMSC
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- Pierre: I fixed the tests so line breaks are consistent and created two pull requests to
- 14:32:58 [nigel]
- .. do that and also to fix some broken renders.
- 14:33:35 [nigel]
- Topic: TTML2
- 14:33:48 [nigel]
- Thierry: I had some responses for the wide review, but mainly "I'm submitting your liaison
- 14:34:00 [nigel]
- .. to the appropriate people". I should forward them to the member list to track them.
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- Nigel: Yes please.
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- Thierry: No substantial comments so far.
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- Nigel: OK given that half of us have to disappear off for other things and we've covered
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- .. as much of our agenda as we usefully can today, let's adjourn until next week. [adjourns meeting]
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- rrsagent, make minutes
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- I have made the request to generate http://www.w3.org/2017/07/20-tt-minutes.html nigel
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- scribeOptions: -final -noEmbedDiagnostics
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- rrsagent, make minutes
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- I have made the request to generate http://www.w3.org/2017/07/20-tt-minutes.html nigel
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