<trackbot> Date: 05 June 2014

<scribe> scribeNick: nigel

TPAC F2F

nigel: Philippe told us this week that we can't meet on Monday and Friday as requested but could do Monday and Thursday

tmichel: It's due to lack of meeting room space.

RESOLUTION: We will meet at TPAC on the Monday and Thursday

Actions pending review

action-232?

<trackbot> action-232 -- Glenn Adams to Consider also defining @validation on ttp:profile, in addition to (override) tt:tt -- due 2014-04-01 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/232

glenn: I added a validation and validationAction attribute.

nigel: We had discussion about the default value being warn instead of abort

glenn: I still prefer it to be abort.

nigel: I have in mind the case that the user wishes to present a document of unknown provenance but the default validationAction causes an abort

close action-232

<trackbot> Closed action-232.

<glenn> action glenn to define default for @validationAction to be warn if @validation is optional; otherwise, default is abort

<trackbot> Created ACTION-296 - Define default for @validationACTION to be warn if @validation is optional; otherwise, default is abort [on Glenn Adams - due 2014-06-12].

action-254?

<trackbot> action-254 -- Glenn Adams to Add errata note for ttml1 pointing at constraint in smil prohibiting dur of zero, add normative text to ttml2 -- due 2014-04-01 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/254

glenn: There's still an action to avoid using 'wilful violation' wording

close action-254?

<trackbot> Closed action-254.

<glenn> ACTION glenn to soften language about 'willful violation' regarding treatment of duration zero

<trackbot> Created ACTION-297 - Soften language about 'willful violation' regarding treatment of duration zero [on Glenn Adams - due 2014-06-12].

action-284?

<trackbot> action-284 -- Glenn Adams to Create the registry page -- due 2014-05-01 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/284

close action-284?

<trackbot> Closed action-284.

action-291?

<trackbot> action-291 -- Nigel Megitt to Find the related issue that describes the need to restrict or extend individual profile features -- due 2014-05-29 -- PENDINGREVIEW

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/actions/291

close action-291

<trackbot> Closed action-291.

Change Proposal 12, Profiles and Features

https://www.w3.org/wiki/TTML/changeProposal012

<glenn> https://dvcs.w3.org/hg/ttml/raw-file/default/ttml2/design/TPAC2013-TTMLProfiles.pdf

glenn: describes changes made for issues in change proposal 12 by reference to page 8 of the pdf presentation

dsinger: I think combination content profiles inferred within a document is a mistake and we should only have the OR expression not the AND, i.e. those wishing to use an alternate profile should define it separately.

glenn: There are multiple uses of this, either externally in defining a profile and within a specific document for 'on the fly' processing.

dsinger: It's the second of those, the 'on the fly' that I think is a mistake.

glenn: We should think about that some more and think about if we want to make it asymmetrical, with respect to content profile combinations as opposed to processor profile combinations.

nigel: I believe the combination of profiles is described in issue-206.

glenn: I think david's raising a new issue

<Dsinger_> Issue-206

<trackbot> Issue-206 -- Add ttp:profileCombination parameter -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/206

glenn: It's that the complexity of supporting on the fly combination of content profiles is too complex and not needed.
... I've added two editors notes, the second it in 5.2.4.2 that describes the content profile combination semantics
... If a receiving processor is able to do validation and it's required then it would use the content profiles otherwise there's no other use for content profiles. If we define validation processing well even in the context of content profiles then that leaves the judgement of complexity to the reader.
... I would like to propose that we discuss profiles further at the upcoming F2F in September, and that I write some explanatory documentation, both in the spec and for the meeting.

close issue-206

<trackbot> Closed issue-206.

issue-261?

<trackbot> issue-261 -- signaling document profile conformance is separate from decoder presentation requirements -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/261

close issue-261

<trackbot> Closed issue-261.

issue-266?

<trackbot> issue-266 -- add ability for instance documents to declare what profile(s) it conforms to -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/266

close issue-266

<trackbot> Closed issue-266.

issue-280?

<trackbot> issue-280 -- Add ability to define a profile from multiple profiles. -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/280

close issue-280

<trackbot> Closed issue-280.

issue-263?

<trackbot> issue-263 -- profile feature set may not match intended feature constraints -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/263

glenn: ttp:feature can now be specified with either an extends or a restricts (or both, currently) attribute.

<glenn> action glenn to either proscribe or define semantics on specifying both @extends and @restricts on a ttp:{feature,ext3ension}

<trackbot> Created ACTION-298 - Either proscribe or define semantics on specifying both @extends and @restricts on a ttp:{feature,ext3ension} [on Glenn Adams - due 2014-06-12].

<glenn> dsinger: mea culpa

nigel: an example for this may be extending or restricting permitted values e.g. for the tts:color attribute.

glenn: ttp:permitFeatureNarrowing and ttp:permitFeatureWidening are attributes that describe whether or not processors that implement narrower/wider versions to claim support.
... It's not predictable what the author wants so I added the attributes to cover those cases specifically.

nigel: Can we leave that open until there are some examples e.g. SDP-US color space.

issue-299?

<trackbot> issue-299 -- dur must be greater than zero -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/299

close issue-299

<trackbot> Closed issue-299.

Pending Review Issues

issue-318?

<trackbot> issue-318 -- Hypothetical Render Model glyph copy assumes no sub-pixel positioning -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/318

close issue-318

<trackbot> Closed issue-318.

issue-320?

<trackbot> issue-320 -- Is normative SMPTE 2052 reference okay? -- pending review

<trackbot> http://www.w3.org/AudioVideo/TT/tracker/issues/320

close issue-320

<trackbot> Closed issue-320.

AOB

nigel: I will send regrets for 26th June and 3rd July

This is scribe.perl Revision: 1.138  of Date: 2013-04-25 13:59:11  
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Guessing input format: RRSAgent_Text_Format (score 1.00)

Succeeded: s/action/ACTION/
Succeeded: s/action/ACTION/
Succeeded: s/rrsagent. generate minutes//
Succeeded: s/Resolution/RESOLUTION/
Found ScribeNick: nigel
Inferring Scribes: nigel
Default Present: +44.192.341.aaaa, nigel, +1.720.897.aabb, glenn, +41.22.717.aacc, Frans-EBU, jdsmith, pal, tmichel, Plh, dsinger
Present: Frans-EBU Plh dsinger glenn jdsmith nigel pal plh tmichel
Regrets: mdolan
Found Date: 05 Jun 2014
Guessing minutes URL: http://www.w3.org/2014/06/05-tt-minutes.html
People with action items: