W3C

- DRAFT -

Timed Text Working Group Teleconference

08 May 2014

See also: IRC log

Attendees

Present
nigel, pal, jdsmith, plh
Regrets
mdolan, tmichel
Chair
nigel
Scribe
nigel

Contents


<trackbot> Date: 08 May 2014

<scribe> scribeNick: nigel

MPEG liaison re MIME Codecs parameter

nigel: We'll discuss this next week. There's been a lot of email discussion on this.

action-288?

<trackbot> action-288 -- Nigel Megitt to Create issue for codecs parameter -- due 2014-05-08 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/288

close action-288

<trackbot> Closed action-288.

Action items pending review

action-246?

<trackbot> action-246 -- Nigel Megitt to Take deliverables of draft charter to TAG for scrutiny -- due 2014-04-17 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/246

nigel: This is a placeholder action I gave myself when we were reviewing the draft charter. I've reviewed TAG's remit and compared with our deliverables and concluded there's no action.

close action-246

<trackbot> Closed action-246.

action-274?

<trackbot> action-274 -- Nigel Megitt to Discuss with david singer possibilities for f2f before going ahead and adding ttwg to tpac agenda. -- due 2014-03-27 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/274

nigel: I have requested TTWG meetings at TPAC. I have not had a response yet.

plh: We need to confirm the F2F in September by July at the latest.

close action-274

<trackbot> Closed action-274.

Issues discussed and raised over the past week

issue-307?

<trackbot> issue-307 -- Conformance language and processor profile rather than content profile. -- raised

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/307

pal: I've added a note to the issue. I agree re language use and consistency.
... IMSC is primarily a content profile.

nigel: I'm concerned with using the term profile for content profile when it's defined as 'processor profile' in TTML1. We know what 'content profile' means informally but it's defined in TTML1 as a processor profile.

pal: I can amend to be explicit about content profiles too.

nigel: We should also make sure that content profile language is aligned in TTML2 with what we want to use in IMSC

pal: One proposal is to use 'content profile'. In practice everybody will use 'profile' so that will make the wording more verbose.
... Can we wait for Glenn's advice before making edits?

nigel: yes, happy with that.

OPEN issue-307

s/

pal: another term that is used in SDP-US is "document profile", which is fairly close to what IMSC uses today.

nigel: that makes sense too.
... have opened the issue.

issue-308?

<trackbot> issue-308 -- It is unclear how a document is associated with a related video object -- raised

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/308

pal: Related video object should be replaced with Related Media Object everywhere.
... There's no constraint on related objects unless ttp:frameRate is specified
... If you want the document to be independent of video frame rate don't use times with frames.

nigel: This is an editorial issue on ยง4.4 3rd paragraph: I think what is meant is that if time expressions with frames are used then the frame rate in the related video object must be the same as that set.

pal: In fact if frames are to be used then ttp:frameRate must be set in IMSC so they are equivalent, but I can add a note to make this clearer.
... I've added a note to the issue.
... I plan to wait for more comments, e.g. until the 3rd week of May, and look at the comments received then before updating the document.

Change Proposals

https://www.w3.org/wiki/TTML/changeProposal002

jdsmith: We need Glenn before closing this.

nigel: It would be helpful to have advance notice of any CPs that we plan to work on.

jdsmith: I've reviewed internally and can discuss these on the agenda next week - the CPs I own.

nigel: Thank you, I'll add them to the agenda.

AOB

Summary of Action Items

[End of minutes]

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Found ScribeNick: nigel
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Default Present: nigel, pal, [Microsoft], Plh
Present: nigel pal jdsmith plh
Regrets: mdolan tmichel
Found Date: 08 May 2014
Guessing minutes URL: http://www.w3.org/2014/05/08-tt-minutes.html
People with action items: 

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