14:56:49 RRSAgent has joined #tt 14:56:49 logging to http://www.w3.org/2013/01/10-tt-irc 14:56:51 RRSAgent, make logs public 14:56:51 Zakim has joined #tt 14:56:53 Zakim, this will be TTML 14:56:53 ok, trackbot; I see SYMM_TTWG()10:00AM scheduled to start in 4 minutes 14:56:54 Meeting: Timed Text Working Group Teleconference 14:56:54 Date: 10 January 2013 14:57:01 chair sean hayes 14:57:41 SYMM_TTWG()10:00AM has now started 14:57:48 +[Microsoft] 14:58:07 Andreas has joined #tt 14:58:10 zakim, Microsoft is mmartin3 14:58:10 +mmartin3; got it 14:59:14 +??P9 14:59:23 zakim, ??p9 is glenn 14:59:23 +glenn; got it 14:59:29 + +49.893.aaaa 14:59:41 + +1.425.658.aabb 14:59:46 mike has joined #tt 14:59:50 pal has joined #tt 15:00:03 zakim, aabb is me 15:00:03 +Sean; got it 15:00:17 zakim, who is on the phone? 15:00:17 On the phone I see mmartin3, glenn, +49.893.aaaa, Sean 15:00:24 + +1.858.847.aacc 15:00:48 +pal 15:01:25 Agenda: http://lists.w3.org/Archives/Public/public-tt/2013Jan/0009.html 15:01:50 zakim, aacc is me 15:01:50 +mike; got it 15:02:24 zakim, aaaa is Andreas 15:02:24 +Andreas; got it 15:02:35 zakim, who is on the phone? 15:02:35 On the phone I see mmartin3, glenn, Andreas, Sean, mike, pal 15:03:03 scribenick: mmartin3 15:04:00 +Thomas_Bause_Mason 15:04:12 zakim, list attendees 15:04:12 As of this point the attendees have been mmartin3, glenn, +49.893.aaaa, +1.425.658.aabb, Sean, +1.858.847.aacc, pal, mike, Andreas, Thomas_Bause_Mason 15:04:33 zzakim,aaaa is Andreas 15:04:40 akim, aaaa is Andreas 15:04:49 zakim, aaaa is Andreas 15:04:49 sorry, mmartin3, I do not recognize a party named 'aaaa' 15:04:55 tbause has joined #tt 15:05:05 + +1.408.771.aadd 15:05:14 mijordan has joined #tt 15:05:17 zakim, who is on the phone? 15:05:17 On the phone I see mmartin3, glenn, Andreas, Sean, mike, pal, Thomas_Bause_Mason, +1.408.771.aadd 15:05:24 zakim, list attendees 15:05:24 As of this point the attendees have been mmartin3, glenn, +49.893.aaaa, +1.425.658.aabb, Sean, +1.858.847.aacc, pal, mike, Andreas, Thomas_Bause_Mason, +1.408.771.aadd 15:05:31 TOPIC: SDP-US Issues 15:05:35 courtney has joined #tt 15:05:51 Issue-198? 15:05:51 ISSUE-198 -- Add TTML in Title of SDP-US for Ready Recognition -- raised 15:05:51 http://www.w3.org/AudioVideo/TT/tracker/issues/198 15:05:58 +Andrew_Kirkpatrick 15:06:17 mmartin3: For ease of recognition. 15:06:28 Zakim, Andrew_Kirkpatrick is mijordan 15:06:28 +mijordan; got it 15:06:41 mike: sounds reasonable. 15:06:44 Link: http://www.w3.org/TR/ttml10-sdp-us/ 15:07:24 glenn: Where do we put it? 15:07:33 mjordan: What about after SDP? 15:07:46 glenn: Monica's suggestion is preferred. 15:07:54 Resolved to add TTML to the name of SDP-US. 15:08:22 Action: Glenn Add "TTML" to name of SDP-US. Link: http://www.w3.org/TR/ttml10-sdp-us/ 15:08:22 Created ACTION-137 - Add "TTML" to name of SDP-US. Link: http://www.w3.org/TR/ttml10-sdp-us/ [on Glenn Adams - due 2013-01-17]. 15:08:23 monica's suggestion is to put TTML at beginning of title 15:08:48 sean: Redundant list of features in Appendix B. 15:09:16 glenn: Don't serve any real purpose. 15:09:22 ...Features defined in Section 9. 15:09:45 ...Duplicative and could become out of sync (current case). 15:09:56 mike: Informative summary could also be added. 15:10:34 Resolved: Remove two subsections in Appendix A. 15:10:37 c/A/B 15:10:37 remove two paragraphs after table in appendix B 15:11:02 Action: Glenn Delete 2 paragraphs after table in Appendix B of SDP-US. 15:11:02 Created ACTION-138 - Delete 2 paragraphs after table in Appendix B of SDP-US. [on Glenn Adams - due 2013-01-17]. 15:11:11 sean: Fix in editor's draft. 15:11:32 glenn: Has to check URLs. 15:11:38 mike: Public? 15:11:51 http://www.w3.org/TR/ttml10-sdp-us/ 15:13:01 pal: Add origin and extent to SDP-US? 15:13:05 ...Section 9. 15:14:01 ...Do we need display-region? 15:14:24 glenn: Support styling. 15:14:49 ...Do we need display for other elements in addition of region? 15:15:22 ...Don't think we need on other elements like span. 15:15:35 ...No change. 15:16:19 mmartin3: We have requirements in extent-region. 15:16:42 sean: Need to add extent and origin to Section 9. 15:17:17 Andreas: Do we more for layering? 15:18:08 c/layering/layout 15:18:19 s/layering/layout 15:18:52 sean: Extent and origin consumed by layout. 15:19:01 ...No change needed in Section 9. 15:19:05 ....Note? 15:19:51 plh has joined #tt 15:19:55 +Plh 15:20:07 glenn: Problem is we need to trace all others. 15:20:46 ...Glenn will review to decide if we place a note in SDP-US not in Section 9. 15:21:42 sean: Each feature description gives attributes and elements. Add another table or subsection in Section 9 that articulates those elements and attributes. 15:21:51 glenn: Duplicates material that could become wrong. 15:22:32 sean: Automate? 15:22:43 glenn: Only prose in sections. 15:22:53 Resolved: No change. 15:23:26 glenn: SDP-US editorial issue in Example 2 has wrong font size. 15:23:47 Action: Glenn Correct font size in Example 2 in SDP-US. 15:23:47 Created ACTION-139 - Correct font size in Example 2 in SDP-US. [on Glenn Adams - due 2013-01-17]. 15:23:57 TOPIC: TTML 1.0 Second Edition 15:24:10 Issue-173? 15:24:10 ISSUE-173 -- presentation semantics of control characters and other unmapped characters -- open 15:24:10 http://www.w3.org/AudioVideo/TT/tracker/issues/173 15:24:53 glenn: No progress on SE issues. Work on now. 15:25:20 ...Not sure we discussed in detail. 15:25:37 ...Character without a mapped gliff. 15:25:52 ....Handle directly or indirectly in XSL-FO semantics. Need to check this. 15:26:21 ...Display gliff at all? Which is specified? 15:26:45 mike: Need to decide on ones that alter the flow - carriage return, tab, etc. 15:26:57 ...Are they part of the behavior of the region? 15:27:06 ...Ignor or substitute? 15:28:10 glenn: Handled by default semantics of XSL-FO. Describe behavior whitespace handling, new lines, etc. Default semantics of XSL-FO apply because TTML 1.0 doesn't dictate them. 15:28:27 ...We could put information in TTML 1.0 SE. 15:28:42 ....Umbrella issue that needs to be separate. 15:28:52 sean: Be clear of what semantics actually are. 15:29:38 ...Need to know what is in TTML 1.0. 15:29:49 glenn: What are in the specification? 15:30:00 mike: Tab, Carriage Return, New Line. 15:30:17 glenn: Line separator and paragraph separator. 15:30:59 sean: Glenn and Mike will quantify where we are at. 15:32:06 mike: Section 7..1.7 is an example where we need to clarify. https://dvcs.w3.org/hg/ttml/raw-file/tip/ttml10/spec/ttaf1-dfxp.html#content-vocabulary-br 15:32:46 glenn: Reference UAX-14. May need to update and look at XSL-FO references in Second Edition. 15:33:03 mike: One or more issues? 15:33:20 glenn: Need another issue specifically related to whitespace handling and line breaking. 15:33:23 Issue-175? 15:33:23 ISSUE-175 -- media type and file extension not registered -- open 15:33:23 http://www.w3.org/AudioVideo/TT/tracker/issues/175 15:33:54 mike: Produced proposed redlines. 15:34:31 ...Material to Sean and Glenn, and to TTWG is sufficient. Original TTML 1.0 said that encoding should be binary. Should be UTF-8 and UTF-16. 15:34:49 glenn: Registration information says binary. 15:35:26 mike: XML specific encoding is what we are targeting. 15:36:26 Mike's post: http://lists.w3.org/Archives/Public/public-tt/2012Nov/0036.html 15:36:39 glenn: TTML 1.0 Second Edition doesn't talk about binary. 15:36:50 ...Not in TTML 1.0 either. 15:37:29 mike: Differences between what was given to IANA, discussion and in TTML 1.0. 15:37:34 ...Talk about encoding. 15:38:06 glenn: We don't have constraints for encoding. Recommended for wire encoding. 15:38:33 mike: Optional parameters - application/xml supports a large number of encodings including binary. 15:39:52 glenn: TTML 1.0 doesn't mandate a concrete encoding. Defines at the infoset with scalar values irrespective of their encoding. 15:40:09 ...Appendix G. 15:40:42 ...May differ with what was defined in MIME registration type. 15:41:11 ...Shouldn't constrain. 15:41:35 mike: Presentation engines that use UTF-8 and -16 gives some preference. 15:42:17 ...UTF-8 document with namespace with binary. 15:42:29 glenn: Where is the reference for your concern? 15:42:49 sean: We do have a constraint in SDP-US. 15:44:26 ...Don't understand the issue. 15:44:45 mike: We have an issue on encoding. 15:45:29 glenn: Content conformance has some requirements to application/xml 15:45:52 Issue-197 15:45:52 ISSUE-197 -- charset/encoding unconstrained -- open 15:45:52 http://www.w3.org/AudioVideo/TT/tracker/issues/197 15:46:21 ...glenn: Derive encoding from there. 15:47:13 sean: Table discussion until the issue is understood. 15:47:36 ...Mike put a paragraph summarizing your concerns. Sean will review. 15:49:40 mike: My concern is a document constrained to UTF-8 encoding with a namespace that uses binary. There could be processing issues. There may be other constraints in XML. 15:50:20 glenn: There is no explicit references other than a TTML document at runtime. There could be implicit references. 15:50:31 here is some more information, including the proposed redline of Annex C: http://lists.w3.org/Archives/Public/public-tt/2013Jan/0005.html 15:50:48 sean: Could use XML include. 15:51:47 ...May not need a concrete MIME type. We need to comprehensively look at how you create the XML using the Infoset. 15:52:18 glenn: We probably shouldn't say anything even though we may want to. 15:53:03 ...Annex G could be generalized to namespace and profile documents. 15:53:45 mike: Need to fix Annex C or remove entirely. If we keep it, we need to update with comments from IANA and others (see http://lists.w3.org/Archives/Public/public-tt/2013Jan/0005.html). 15:53:54 ...Talk more about encoding. 15:54:40 TOPIC: Actions 15:54:53 Action-133? 15:54:53 ACTION-133 -- Mike Dolan to create updated template and summary of media type record for Glenn. -- due 2012-12-13 -- CLOSED 15:54:53 http://www.w3.org/AudioVideo/TT/tracker/actions/133 15:54:55 Closed 15:55:05 Action-136? 15:55:05 ACTION-136 -- Glenn Adams to integrate changes from Action-133 into the TTML 1.0 Second Edition -- due 2013-01-14 -- OPEN 15:55:05 http://www.w3.org/AudioVideo/TT/tracker/actions/136 15:55:37 glenn: Still have issue if we need other changes. Do we delete Appendix C? 15:55:44 sean: Table action given discussion. 15:55:47 Issue-199? 15:55:47 ISSUE-199 -- timeExpression to video frame calculation is unclear in some cases -- raised 15:55:47 http://www.w3.org/AudioVideo/TT/tracker/issues/199 15:56:20 mike: Contacted by implementers - timeExpression with frames. How do we calculate the video frame? 15:56:37 ...Cases where different time representations using clock with frames that result in the same video frame. 15:56:46 ...M->1 mapping OK. 15:57:20 ....Glenn proposed a different algortihm to go to 1-1 with some side effects. What is the best approach and give guidance in TTML 1.0 SE. 15:57:52 ...Issue exist for non-integer frame rates with timeExpression with clock with frames. 15:58:14 glenn: Implementer may have come to different conclusions. What was our original intent? 15:58:37 ...Thread wasn't on public reflector. 15:59:03 sean: Glenn and Sean prepare a discussion document for Jan 17 or 24. 15:59:46 mike: Work with issue and what is on reflector. 16:00:05 -glenn 16:00:12 plh: Will be gone Jan 17. 16:00:18 -Thomas_Bause_Mason 16:00:20 -Plh 16:00:21 trackbot, end meeting 16:00:21 Zakim, list attendees 16:00:21 As of this point the attendees have been mmartin3, glenn, +49.893.aaaa, +1.425.658.aabb, Sean, +1.858.847.aacc, pal, mike, Andreas, Thomas_Bause_Mason, +1.408.771.aadd, mijordan, 16:00:24 ... Plh 16:00:24 -Andreas 16:00:24 -mijordan 16:00:24 -mike 16:00:24 -Sean 16:00:25 -pal 16:00:29 RRSAgent, please draft minutes 16:00:29 I have made the request to generate http://www.w3.org/2013/01/10-tt-minutes.html trackbot 16:00:30 RRSAgent, bye 16:00:30 I see 3 open action items saved in http://www.w3.org/2013/01/10-tt-actions.rdf : 16:00:30 ACTION: Glenn Add "TTML" to name of SDP-US. Link: http://www.w3.org/TR/ttml10-sdp-us/ [1] 16:00:30 recorded in http://www.w3.org/2013/01/10-tt-irc#T15-08-22 16:00:30 ACTION: Glenn Delete 2 paragraphs after table in Appendix B of SDP-US. [2] 16:00:30 recorded in http://www.w3.org/2013/01/10-tt-irc#T15-11-02 16:00:30 ACTION: Glenn Correct font size in Example 2 in SDP-US. [3] 16:00:30 recorded in http://www.w3.org/2013/01/10-tt-irc#T15-23-47