16:00:57 RRSAgent has joined #tt 16:01:01 logging to https://www.w3.org/2026/01/15-tt-irc 16:01:01 RRSAgent, make logs Public 16:01:02 Meeting: Timed Text Working Group Teleconference 16:01:06 scribe: nigel 16:01:08 Chair: Nigel 16:01:11 Regrets: Gary 16:01:19 Agenda: https://github.com/w3c/ttwg/issues/325 16:01:50 Present+ Atsushi, Chris_Needham, Nigel 16:02:19 Previous meeting: https://www.w3.org/2025/12/18-tt-minutes.html 16:03:02 Topic: This meeting 16:03:06 cpn has joined #tt 16:03:10 Present+ Cyril 16:03:13 scribe+ cpn 16:04:11 regrets: Gary 16:04:25 Topic: Agenda review 16:04:56 Nigel: One PR on DAPT on DAPT/IMSC compatibility 16:05:16 ... For IMSC 1.3, there are open PRs, nothing flagged for the agenda 16:05:28 ... Any other topics? 16:05:52 ... I have an AOB regarding Pierre 16:06:01 (nothing) 16:06:26 Topic: DAPT 16:06:35 Subtopic: CRS publication 16:06:43 Nigel: This was published on 18 December 16:07:25 ... Aside from Informative changes that require a new CRS, this might be the last one 16:08:52 ... For the implementation report, we haven't worked out what to do about the current implementation 16:09:16 cpn has joined #tt 16:09:16 github-bot has joined #tt 16:09:16 jcraig has joined #tt 16:09:16 gkatsev_cloud has joined #tt 16:09:16 rhiaro has joined #tt 16:09:25 ... I haven't open sourced the BBC implementation yet 16:09:31 ... When can we organise that? 16:09:38 Cyril: Week after next should be fine 16:10:02 ... Week of Jan 26th 16:10:21 Nigel: Let's aim for that, and that'll push me to do the open sourcing 16:11:04 Nigel: We need to work out how to describe this in the implementation report 16:11:16 ... Generating content isn't passing tests 16:11:28 s/isn't/isn't the same thing as/ 16:11:51 Cyril: We need two passing implementations, they don't both need to be validation tools 16:12:50 ... If the authoring tool creates content that represents the same features [...] 16:13:17 ... We may have an issue with invalid features, as the authoring tool won't generate invalid content 16:13:29 Nigel: We need two implementations of each feature 16:14:14 ... The test is a validation test. If we show the implementation generates content that passes valid and invalid tests, we're good 16:14:40 ... If content fails validation, I'd say it's not a valid implementation of the feature 16:15:11 Cyril: So have a table showing, for each feature, how many implementations are passing, then in the cell how many implementations are validating and how many are creating 16:15:51 Nigel: Something like that, yes. We currently have a "tests passed" column, we could have a feature implementation column 16:16:38 Nigel: [checks the CR exit criteria] 16:17:01 Nigel: What we document in the table is the number of independent implementations of the feature 16:17:12 ... We can say what type of implementation that is, to make it clear 16:17:29 ... So we'll need to refactor that table in the implementation report 16:17:43 Cyril; The one feature our tool doesn't implement is the audio tag 16:18:15 Nigel: There is one feature for that, xml:lang audio non-matching 16:18:41 ... For that we need to create content and check the language is different from the parent 16:18:55 ... We also have to deal with all the at-risk features 16:19:58 Subtopic: DAPT/IMSC compatibility 16:20:21 Nigel: We have one PR open, #333. Pierre made some comments, that I still need to finish responding to 16:20:48 ... Add DAPT signalling to the IMSC signalling section. I need to move the IMSC signalling section in the DAPT spec somewhere else 16:21:21 ... I need to do an editorial pass to fix this. We have references to 3 different versions of IMSC, which isn't intentional 16:21:35 ... All informative changes. It'll need review 16:22:21 Topic: IMSC 1.3 16:22:53 Nigel: CRS publication also happened on 18 December 16:23:06 ... There are a few PRs open, but none marked for the agenda today 16:23:21 ... Some PRs have been merged since our last call. That triggered a new CR Draft 16:23:31 ... The most recent publication is 20th December 16:23:53 ... I don't think there's any reason we need another CR Snapshot as we're not expecting to make more substantive changes 16:29:57 ... Anything to discuss on IMSC 1.3? 16:29:58 (nothing) 16:30:00 Topic: AOB 16:31:03 Nigel: As mentioned at the end of our last call, MovieLabs is no longer a W3C member, and we're working to see if we can find a way to accept Pierre's offer to continue shepherding IMSC 1.3 to Recommendation 16:36:33 Nigel: Anything else? 16:36:35 (nothing) 16:36:46 Nigel: Next call in 2 weeks time 16:36:52 [adjourned] 16:36:56 rrsagent, draft minutes 16:36:58 I have made the request to generate https://www.w3.org/2026/01/15-tt-minutes.html cpn 16:37:09 i/Nigel/Topic: Meeting close 16:37:54 i/[ad/Agenda for 2026-01-29 call -> https://github.com/w3c/ttwg/issues/326 16:38:03 rrsagent, generate minutes 16:38:05 I have made the request to generate https://www.w3.org/2026/01/15-tt-minutes.html nigel 16:38:30 s/Topic: This meeting// 16:38:47 Regrets+ Andreas 16:42:29 s/If we show the implementation generates content that/If we show the implementation generates content that is good according to a validator that 16:43:00 s/Cyril;/Cyril: 16:43:31 s/xml:lang audio non-matching/#xmlLang-audio-nonMatching 16:43:52 s/check the language is different from the parent/check the language is not different from the parent 16:44:37 rrsagent, generate minutes 16:44:39 I have made the request to generate https://www.w3.org/2026/01/15-tt-minutes.html nigel 16:45:17 scribeOptions: -final -noEmbedDiagnostics 16:45:20 zakim, end meeting 16:45:20 As of this point the attendees have been Atsushi, Chris_Needham, Nigel, Cyril 16:45:22 RRSAgent, please draft minutes v2 16:45:23 I have made the request to generate https://www.w3.org/2026/01/15-tt-minutes.html Zakim 16:45:29 I am happy to have been of service, nigel; please remember to excuse RRSAgent. Goodbye 16:45:30 Zakim has left #tt 16:45:39 rrsagent, excuse us 16:45:39 I see no action items