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Re: ACTION-341: Check with the mpeg folk if a wg note would be acceptable.

From: Nigel Megitt <nigel.megitt@bbc.co.uk>
Date: Fri, 24 Oct 2014 11:18:42 +0000
To: Michael Dolan <mdolan@newtbt.com>, "'Timed Text Working Group'" <public-tt@w3.org>
Message-ID: <D06FF31C.15258%nigel.megitt@bbc.co.uk>
Mike,

It looks to me like any in-place update to the IANA registration would
result in an invalidation of Annex C of TTML1SE "Media Type Registration"
which is why I included option 3 to publish an erratum to TTML1SE.

Your suggestion is certainly appealing from a 'minimal change' perspective.

Nigel


On 24/10/2014 11:27, "Michael Dolan" <mdolan@newtbt.com> wrote:

>Nigel-
>
>I defer to you on what there is or is not consensus on, but the proposal
>I made is a bit different than the first bullet.  Allow me to elaborate.
>I propose that we update the registration with IANA at [1] to:
>
>a. add the new "processorProfiles" parameter;
>b. remove the specifics from the citation back to TTML1 Appendix C; and
>c. *not* publish a copy of it anywhere else (TTML2, WG Note, BBC business
>cards, ....).
>
>The IANA registration can stand alone and be the authoritative media type
>definition.
>
>[1] http://www.iana.org/assignments/media-types/application/ttml+xml

>
>	Mike
>
>-----Original Message-----
>From: Nigel Megitt [mailto:nigel.megitt@bbc.co.uk]
>Sent: Friday, October 24, 2014 2:33 AM
>To: Michael Dolan; 'Timed Text Working Group'
>Subject: Re: ACTION-341: Check with the mpeg folk if a wg note would be
>acceptable.
>
>When I wrote "the mpeg folk" that was short-hand for "the mpeg folk in
>this working group", not all of MPEG. The other thread you mention was
>the result of my doing this action.
>
>Summary of conclusions from that thread:
>
>* We should re-register the media type with IANA, based on some syntax
>that we publish somewhere.
>* We do not have consensus to record the syntax and new media
>registration in the TTML2 spec.
>* We do not have consensus to record the syntax and new media
>registration in a new WG Note.
>
>Without consensus on where to specify the parameter syntax definition and
>the media registration we can not proceed.
>
>I believe the four logical possibilities for where to record the syntax
>and new registration are (before discounting any if they're not
>acceptable):
>
>1. In TTML2
>2. As a new WG Note.
>3. As an erratum to TTML1.
>4. As a new Recommendation (which would need to be added to the Charter
>as a group deliverable).
>
>To establish if we have a consensus for any of these options now please
>could you respond with a numerical vote for each option, from the scale
>-1 to +1 where:
>
>  -1 = formal objection
>   0 = no objection
>  +1 = strong preference
>
>Fractional values can be used to indicate preference levels but only -1
>will be considered an objection, i.e. -0.9 is a strong preference
>against, but something that you could live with.
>
>Nigel
>
>
>On 24/10/2014 10:19, "Michael Dolan" <mdolan@newtbt.com> wrote:
>
>>+1
>>
>>In addition, based on the other thread, there does not seem to be
>>consensus to do this via a WG Note anyway. Let's resolve that before we
>>start asking input from external bodies.
>>
>>	Mike
>>
>>-----Original Message-----
>>From: David Singer [mailto:singer@apple.com]
>>Sent: Friday, October 24, 2014 1:41 AM
>>To: Timed Text Working Group
>>Subject: Re: ACTION-341: Check with the mpeg folk if a wg note would be
>>acceptable.
>>
>>Um, where the TTWG defines it MIME sub-parameters is entirely up to the
>>TTWG.  At MPEG, we're merely going to say "the mime type of the
>>included resource, possibly with sub-parameters as defiend for it, goes
>>here"
>>
>>
>>On Oct 23, 2014, at 16:55 , Timed Text Working Group Issue Tracker
>><sysbot+tracker@w3.org> wrote:
>>
>>> ACTION-341: Check with the mpeg folk if a wg note would be acceptable.
>>> 
>>> http://www.w3.org/AudioVideo/TT/tracker/actions/341

>>> 
>>> Assigned to: Nigel Megitt
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>> 
>>
>>David Singer
>>Manager, Software Standards, Apple Inc.
>>
>>
>>
>
>
>

Received on Friday, 24 October 2014 11:19:16 UTC

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