13:56:41 RRSAgent has joined #tt 13:56:41 logging to http://www.w3.org/2013/07/25-tt-irc 13:56:43 RRSAgent, make logs public 13:56:43 Zakim has joined #tt 13:56:45 Zakim, this will be TTML 13:56:45 ok, trackbot; I see SYMM_TTWG()10:00AM scheduled to start in 4 minutes 13:56:46 Meeting: Timed Text Working Group Teleconference 13:56:46 Date: 25 July 2013 13:59:17 tmichel has joined #tt 13:59:45 plh has joined #tt 14:00:08 trackbot, start telcon 14:00:10 RRSAgent, make logs public 14:00:12 Zakim, this will be TTML 14:00:12 ok, trackbot; I see SYMM_TTWG()10:00AM scheduled to start now 14:00:13 Meeting: Timed Text Working Group Teleconference 14:00:13 Date: 25 July 2013 14:00:23 SYMM_TTWG()10:00AM has now started 14:00:25 +Plh 14:00:30 +hhalpin 14:00:39 pal has joined #tt 14:00:45 zakim, dial Thierry-Cip 14:00:45 ok, tmichel; the call is being made 14:00:46 +Thierry 14:01:01 + +44.154.558.aaaa 14:01:06 zakim, hhalpin is really pal 14:01:06 +pal; got it 14:01:13 njm has joined #tt 14:01:16 zakim, aaaa is Sean 14:01:16 +Sean; got it 14:01:39 mijordan has joined #tt 14:01:43 zakim, mute me 14:01:43 sorry, tmichel, I do not know which phone connection belongs to you 14:01:46 +??P12 14:02:25 +??P13 14:02:29 I have just dialled in 14:02:34 zakim, ??p13 is me 14:02:34 +glenn; got it 14:02:48 +[Adobe] 14:02:50 zakim, ??p12 is me 14:02:50 +njm; got it 14:03:23 zakim, adobe is me 14:03:23 +mijordan; got it 14:03:55 zakim, mute thierry 14:03:55 Thierry should now be muted 14:04:54 Sean_ has joined #tt 14:05:06 zakim, who is here? 14:05:06 On the phone I see Plh, pal, Thierry (muted), Sean, njm, glenn, mijordan 14:05:08 On IRC I see Sean_, mijordan, njm, pal, plh, tmichel, Zakim, RRSAgent, Sean, glenn, trackbot 14:05:32 scribe: plh 14:06:24 Topic: Holiday next week 14:06:44 Next week meeting is postponed 14:06:58 Topic: Open actions 14:07:07 action-88? 14:07:07 ACTION-88 -- Philippe Le Hégaret to make sure the TTML media type is properly registered for Issue-175. -- due 2013-07-31 -- OPEN 14:07:07 http://www.w3.org/AudioVideo/TT/tracker/actions/88 14:07:44 --> https://tools.iana.org/public-view/viewticket/695904 tracker for medfia type 14:08:00 action-177? 14:08:00 ACTION-177 -- Glenn Adams to update local copy of xml.xsd to use newer copy based on above link. -- due 2013-07-25 -- OPEN 14:08:00 http://www.w3.org/AudioVideo/TT/tracker/actions/177 14:08:06 +Thomas_Bause_Mason 14:08:16 tbause has joined #tt 14:08:19 Glenn: I have the info but didn't get to it yet 14:08:25 ation-178? 14:08:28 action-178? 14:08:28 ACTION-178 -- Sean Hayes to open new issue(s) describing problems with concrete encoding. -- due 2013-07-25 -- OPEN 14:08:28 http://www.w3.org/AudioVideo/TT/tracker/actions/178 14:08:42 action-178: that's issue 264 14:08:42 Notes added to ACTION-178 Open new issue(s) describing problems with concrete encoding.. 14:08:46 close action-178 14:08:46 Closed ACTION-178 Open new issue(s) describing problems with concrete encoding.. 14:09:22 action-179? 14:09:22 ACTION-179 -- Sean Hayes to follow up with plh on ACTION-88 -- due 2013-07-25 -- OPEN 14:09:22 http://www.w3.org/AudioVideo/TT/tracker/actions/179 14:09:35 close action-179 14:09:35 Closed ACTION-179 Follow up with plh on ACTION-88. 14:09:42 action-180? 14:09:43 ACTION-180 -- Glenn Adams to ensure that 10REC errata page is cleared after 10SE is published as REC. -- due 2013-07-25 -- OPEN 14:09:43 http://www.w3.org/AudioVideo/TT/tracker/actions/180 14:09:51 Sean: waiting on that one 14:09:56 action-182? 14:09:56 ACTION-182 -- Thierry Michel to create ttml2 and ttml1 short names, to change tracker product labels as needed -- due 2013-07-25 -- OPEN 14:09:56 http://www.w3.org/AudioVideo/TT/tracker/actions/182 14:10:18 zakim, unmute thierry 14:10:18 Thierry should no longer be muted 14:10:23 zakim, unmute thierry 14:10:23 Thierry was not muted, tmichel 14:10:37 Thierry: didn't reserve it yet 14:11:16 Sean: main issue is to separate the two versions 14:11:27 zakim, mute thierry 14:11:27 Thierry should now be muted 14:11:37 action-183? 14:11:37 ACTION-183 -- Sean Hayes to work with plh on TPAC schedule. -- due 2013-07-25 -- OPEN 14:11:37 http://www.w3.org/AudioVideo/TT/tracker/actions/183 14:11:42 zakim, mute thierry 14:11:42 Thierry was already muted, tmichel 14:11:59 Sean: we're clashing with Web and TV IG 14:12:34 plh: can we move to Thursday/Friday? 14:12:39 Sean: clash with HTML WG 14:12:52 pal: do we need more than one day? 14:15:23 plh: Sean: could we do Monday and Friday? 14:15:31 Sean: could we do Monday and Friday? 14:15:50 Sean: if we get everything done on Monday, we won't need the Friday 14:16:04 I may have a digital publishing meeting on friday 14:16:05 ... won't clash with WebTV IG and HTML WG business 14:17:16 zakim, unmute thierry 14:17:16 Thierry should no longer be muted 14:17:17 OK 14:17:22 zakim, mute thierry 14:17:22 Thierry should now be muted 14:17:32 ACTION: Thierry to check with Angel if Monday/Friday is ok 14:17:32 Created ACTION-184 - Check with Angel if Monday/Friday is ok [on Thierry Michel - due 2013-08-01]. 14:17:44 close action-183 14:17:44 Closed ACTION-183 Work with plh on TPAC schedule.. 14:18:03 Topic: issue 259 14:18:09 issue-259? 14:18:09 ISSUE-259 -- Define "closest" -- raised 14:18:09 http://www.w3.org/AudioVideo/TT/tracker/issues/259 14:18:25 The term "closest" is used a number of times. Does closest mean 12.5 = 12 or 12.5 = 13? Suggest defining closest more precisely. 14:19:16 pal: hopefully, that's purely editorial. going over the document and making sure we're clear on what closest means 14:19:55 ACTION: Glenn to go through the spec for issue 259 14:19:55 Created ACTION-185 - Go through the spec for issue 259 [on Glenn Adams - due 2013-08-01]. 14:20:05 issue-260? 14:20:05 ISSUE-260 -- When agent is not @type 'character', then should prohibit actor child. -- raised 14:20:05 http://www.w3.org/AudioVideo/TT/tracker/issues/260 14:21:03 Glenn: if the type isn't character we shouldn't have an actor child 14:21:16 ... found the issue when implementing the validator tool 14:21:32 ... agent can be person, organization, other 14:22:35 @@: in a dramatic reconstruction, you may have an actor playing a real person 14:22:47 ... so I would allow actor for person and character 14:22:57 Glenn: sounds like there is a use case for this then 14:23:14 ... if we're going to allow for person and other, do we want a restriction at all? 14:23:31 ... maybe we can tweak the prose... 14:23:45 ACTION: Glenn to work with Nigel to come up with a resolution for issue 260 14:23:45 Created ACTION-186 - Work with Nigel to come up with a resolution for issue 260 [on Glenn Adams - due 2013-08-01]. 14:23:49 s/@@/Nigel/ 14:23:56 Topic: issue 261 14:24:01 issue-261? 14:24:01 ISSUE-261 -- signaling docoument profile conformance is separate from decoder presentation requirements -- raised 14:24:01 http://www.w3.org/AudioVideo/TT/tracker/issues/261 14:24:39 Sean: let's skip this for the moment 14:25:08 Nigel: from the EBU meeting, we did consider profiling 14:25:20 ... we'd like to provide some input in our experience about creating EBU-TT 14:25:38 Sean: I'd like to dedicate a special meeting on profiles, maybe in 2 weeks 14:25:48 ... misunderstandings about use cases 14:25:53 ... would that work for EBU? 14:26:00 Nigel: I doubt we'll be ready by then 14:26:07 Sean: we can wait then 14:26:31 ... it's not urgent but need to be addressed at some point 14:26:45 Nigel: if you want something formal, that would take more time 14:26:58 ... I'll check with the EBU group 14:27:06 ... for documentation of the profile issues 14:27:23 ... we'll make sure that folks can attend 14:27:25 q+ 14:27:44 ack pal 14:27:54 Pal: sounds like a great idea but later date better 14:28:08 ... there is long discussion between Mike Dolan and Glenn on the reflector 14:28:13 ... did you look at it? 14:28:45 [...] 14:29:00 Pal: would be good to take into account the discussion there in the EBU 14:29:46 Paul: issue 263 is also related 14:30:08 ... it deals with how to specify mechanically a profile that applies constraints on features 14:30:34 Sean: we need to understand what we built, if it fits the use cases, and move from there 14:30:56 ... there are other issues around profile that weren't close properly either 14:31:09 Pal: look at the original intent from Glenn on profile 14:31:22 ... fundamental background to understand how it's designed today 14:31:39 Sean: ok, let me know when folks are ready for this discussion 14:31:57 Glenn: the list of features in 1.0 was something that I produced during the CR phase of 1.0 14:32:10 ... in order to refer technical feature that we wish to create tests for 14:32:24 ... it wasn't something the group did 14:32:32 ... based on my best reading 14:32:47 ... but we didn't go through it in details 14:33:00 ... now we have actual practice feedback 14:33:16 Sean: they were useful, but we have more experience now indeed 14:33:37 ... we may divide some of the features, inheritance, etc. 14:33:43 ... so it's open for ttml 2 14:34:49 Topic: issue 262 14:34:51 issue-262? 14:34:51 ISSUE-262 -- tts:extent semantics if value not supported -- raised 14:34:51 http://www.w3.org/AudioVideo/TT/tracker/issues/262 14:35:24 Sean: Glenn, any more thought? 14:35:50 Glenn: initial thinking was to mandate support for auto 14:36:16 ... so if you support extent at all, you need to interpret auto as well 14:36:34 Nigel: this kind of issue should be part of the discussion on profile 14:36:43 ... the media support or not needs to be considered there 14:36:47 Glenn: agreed 14:37:26 ... we have to draw some line somewhere because we can't specify everything but we need better guidelines on how to interpret those sentences 14:37:32 Sean: so, part of profile discussion? 14:37:42 Glenn: related to supported or not. 14:37:53 ... if the agent doesn't support a value, what does it do? 14:39:09 Sean: can we resolve this one by removing "supported" in the phrase? 14:39:20 Glenn: not sure yet 14:39:31 ... can we do it after we're done with profiles? 14:39:33 Sean: sure 14:39:42 Topic: issue 264 14:39:45 issue-264? 14:39:45 ISSUE-264 -- What XML entities are valid in TTML canonical syntax -- raised 14:39:45 http://www.w3.org/AudioVideo/TT/tracker/issues/264 14:40:15 Sean: [summarize the issue] 14:40:31 ... I've seen content through as copy/paste from html 14:40:43 ... but ttml processors don't deal with those 14:40:56 ... so we need to clarify what is or isn't supported 14:41:17 Glenn: appendix N refers to XML 1.0 (or 1.1) 14:41:24 ... it defines what you get 14:41:32 ...   isn't one of those 14:41:45 ... we could add a note for readers that don't understand these things 14:41:48 +1 14:41:56 ... we could define more, but don't like it 14:42:05 Sean: I'm fine with a note 14:42:22 ... will help pointing content people to 14:42:31 ... as it stands it's a bit open 14:42:42 +1 14:42:57 ACTION: Glenn to add a note to appendix N on valid XML entities 14:42:57 Created ACTION-187 - Add a note to appendix N on valid XML entities [on Glenn Adams - due 2013-08-01]. 14:43:08 Glenn: applies to TTML 1.0 and TTML 2 14:43:34 Topic: issue 150 14:43:37 issue-150? 14:43:37 ISSUE-150 -- TTML XSD vallidation and extension problem -- closed 14:43:37 http://www.w3.org/AudioVideo/TT/tracker/issues/150 14:43:44 Sean: is there anything to discuss there? 14:43:55 Nigel: this is something that has come up as a real world issue 14:44:17 ... woulde help to have a more granular version in XSD of what's permitted 14:44:29 Sean: new issue or open the old one? 14:44:49 Glenn: let's open a new. also related to skip, lax, and strict processing in XSD 14:45:01 q+ 14:45:15 ... XSD 1.1 helps a bit 14:45:32 ... we added ##other to resolve issue-150 14:45:54 ... it allows foreign @ to fall through the schema 14:46:42 ... also related issue on the purpose of the schema isn't aligned with our definition of validity in the document 14:47:25 ... our schema is to be used with concrete document instead of abstract valide infoset 14:47:55 ACTION: Glenn to create an issue to address the use of other namespace vocabulary in the schema 14:47:55 Created ACTION-188 - Create an issue to address the use of other namespace vocabulary in the schema [on Glenn Adams - due 2013-08-01]. 14:48:02 Topic: issue 257? 14:49:06 Topic: Action items 14:49:40 ack pal 14:50:31 close action-61 14:50:31 Closed ACTION-61 Request shortname ttml11 prior to FPWD on TTML1.1. 14:51:23 q+ 14:51:32 ack njm 14:51:50 Nigel: issue-179 was discussed in the EBU meeting as well 14:52:05 ... at the moment, there is one coordinate system in TTML 14:52:33 ... the graphic plane may have a different resolution than the captions 14:52:55 ... that's difference is causing some issues about what to do 14:53:21 ... same issue in the temporal domain as well 14:54:21 Sean: for the HTML5 to CSS mapping, the graphic plane resolution is independent. there is a logical pixel effectively 14:54:49 ... I scale down to the video rectangle after that 14:55:00 ... that gets over the whole issue 14:55:25 back 14:55:33 ... but because TTML has some abstract words around pixel. we could define a default pixel grid 14:55:44 ... with possibility of overwriting that 14:56:04 suggest we use the SVG user coordinate space model 14:56:04 ... and then transform it to the graphic plane 14:56:33 Nigel: scaling horizontal/vertical differences 14:56:53 Sean: different methods to scale 14:57:16 ... that transformation process is outside the spec. it's for the spec that defines the video media grid 14:57:30 ... but ttml was keep the logical pixel grid 14:57:36 s/was/would/ 14:57:52 Nigel: I think I agree re logical coordinate system 14:58:18 Sean: so action-94 is to write that down 15:00:18 close action-129 15:00:18 Closed ACTION-129 Draft response to bring back to the group to respond to IANA on MIME type submission.. 15:00:21 -mijordan 15:00:30 action-141? 15:00:30 ACTION-141 -- Sean Hayes to call for Action to identify discrepancies in TTML 1.0 on different profiles. -- due 2013-02-14 -- OPEN 15:00:30 http://www.w3.org/AudioVideo/TT/tracker/actions/141 15:00:43 -Thomas_Bause_Mason 15:01:11 action-143? 15:01:11 ACTION-143 -- Philippe Le Hégaret to provide location to Glenn for unwrapped schemas. -- due 2013-02-14 -- OPEN 15:01:11 http://www.w3.org/AudioVideo/TT/tracker/actions/143 15:01:56 plh: we still want to have an unwrapped schema? 15:02:06 sean: it could create a server issue 15:02:21 close action-143 15:02:21 Closed ACTION-143 Provide location to Glenn for unwrapped schemas.. 15:03:44 action-164? 15:03:44 ACTION-164 -- Sean Hayes to investigate interop issues using CSS familyName constructs -- due 2013-06-06 -- OPEN 15:03:44 http://www.w3.org/AudioVideo/TT/tracker/actions/164 15:04:34 issue-33? 15:04:34 ISSUE-33 -- ts:fontFamily and quotedString -- closed 15:04:34 http://www.w3.org/AudioVideo/TT/tracker/issues/33 15:04:42 issue-223? 15:04:42 ISSUE-223 -- Need to make consistent with CSS syntax rules. -- closed 15:04:42 http://www.w3.org/AudioVideo/TT/tracker/issues/223 15:05:41 Glenn: this was about the \u handling 15:06:03 ... you'd need to transform into numeric character reference instead 15:06:47 Sean: we don't define what happen with the family string... 15:07:06 Glenn: it's in a string, it's treated differently 15:07:29 Sean: I can't imagine someone using non-generic font types 15:07:39 Glenn: we define it... 15:08:24 action-164: this is about the embedded unicode mapping 15:08:24 Notes added to ACTION-164 Investigate interop issues using CSS familyName constructs. 15:09:10 Pal: there is an app out there that uses non-generic font family 15:09:22 ... so let's not break backward compatibility... 15:09:43 ... it reference the SMPTE @@ profile 15:10:10 ... there is a mapping defined for the font family name to an external font file 15:10:23 ... I'll be happy to share more details 15:10:59 ACTION: Pierre to report on the use of font family names to reference external font file resources 15:10:59 Created ACTION-189 - Report on the use of font family names to reference external font file resources [on Pierre-Anthony Lemieux - due 2013-08-01]. 15:11:12 action-165? 15:11:12 ACTION-165 -- Pierre-Anthony Lemieux to investigate use cases for ISSUE-232 -- due 2013-06-13 -- OPEN 15:11:12 http://www.w3.org/AudioVideo/TT/tracker/actions/165 15:11:52 Pal: there is a spec that allows out there. I'll follow up 15:12:26 Glenn: wonder if you meant bidi in a vertical context 15:13:35 action-166? 15:13:35 ACTION-166 -- Mike Dolan to open issue for 1.1 regarding encodings -- due 2013-06-27 -- OPEN 15:13:35 http://www.w3.org/AudioVideo/TT/tracker/actions/166 15:15:05 close action-173 15:15:05 Closed ACTION-173 Fold issue-258 into change proposal 15 and close 258. 15:15:35 close action-176 15:15:35 Closed ACTION-176 Work with W3T to lengthen scheduled meeting to 2h. 15:16:05 Topic: AOB 15:16:24 Nigel: reporting from EBU: we're going to create a liaison communication back to the group 15:16:29 ... topics 15:16:40 ... presentation style multi-row line 15:16:49 ... might be covered by shrink-to-fit 15:16:58 ... line row padding 15:17:07 ... metadata 15:17:13 ... carriage of binary data 15:17:32 ... profiling 15:17:33 ... ability to express date 15:17:40 ... ie add date to the time expression 15:17:59 ... crossing midnight present some issues 15:18:40 Sean: we have the ability to do clock expression, but specific dates present challenges due to leap seconds 15:18:55 Glenn: it's related to the current local time midnight 15:19:08 ... if you want to related to a different date, you have to do something 15:19:22 ... you could have + offset but only allow 23 hours 15:19:53 Sean: I think the idea is to have some metadata to specify the start 15:20:05 ... then we could use utc offset time 15:20:47 Nigel: one outcome, but something else as well. you could end up with a 0 crossing issue 15:21:11 ... no way to indicate that 0 crossing happened 15:21:43 ... it can happen if you got a reference time scale that goes up but the system might need to reboot... 15:21:54 Sean: ok, we'll need more details then 15:21:58 NigeL: understood 15:22:04 s/NigeL/Nigel/ 15:22:40 ... one more from EBU: to confirm the meaning of a doc with no time expression in it 15:22:50 ... we think it's externally defined 15:22:52 ... which is fine 15:23:15 Glenn: the root container temporal extent is define by the presentation processing context 15:23:29 ... and body is defined as a parallel construct by default 15:23:50 ... so any text in the document would leave for as long as the external extent exists 15:24:00 ... you could follow throught the spec 15:24:11 ... but maybe not be all in one paragraph 15:24:36 Pal: Member submission from Movielabs 15:24:57 ... https://www.w3.org/Submission/2013/02/ 15:25:01 ... happy to answer questions 15:25:13 ... make sense in the context of the revision of the TTWG charter 15:25:37 Sean: also input from WebTV IG on the charter 15:25:59 Pal: goal is not to make life even more complicated by reducing the number of profiles 15:26:09 ... hope it will be taken up by the group 15:26:18 Topic: Next meeting 15:26:22 Sean: in two weeks 15:26:25 [adjourned] 15:26:27 -njm 15:26:28 -pal 15:26:28 -Plh 15:26:31 rrsagent, generate minutes 15:26:31 I have made the request to generate http://www.w3.org/2013/07/25-tt-minutes.html plh 15:26:32 -glenn 15:26:48 -Sean 15:26:49 SYMM_TTWG()10:00AM has ended 15:26:49 Attendees were Plh, Thierry, +44.154.558.aaaa, pal, Sean, glenn, njm, mijordan, Thomas_Bause_Mason 15:26:52 Chair: Sean 15:27:03 rrsagent, generate minutes 15:27:03 I have made the request to generate http://www.w3.org/2013/07/25-tt-minutes.html plh 17:03:02 Zakim has left #tt