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Re: proposed updated response to MPEG on codecs

From: Cyril Concolato <cyril.concolato@telecom-paristech.fr>
Date: Thu, 16 Oct 2014 17:58:14 +0200
Message-ID: <543FEB16.3080500@telecom-paristech.fr>
To: public-tt@w3.org
Hi Mike,

Le 16/10/2014 17:29, Michael Dolan a écrit :
> Per my action item from today, please see the attached.
> Over to Dave and Nigel for review to see if I captured where we ended 
> up in today’s call; then over to Dave to upload to MPEG (or I can if 
> needed).
> Time is very short and should be posted Sunday morning CEDT.
Sorry I could not attend today's call. The liaison is good. I just think 
it should be clear that:

- the first part (stpp.mediaType) is a proposal to MPEG but the final 
decision is left to MPEG.

- the second part ( application/ttml+xml;procProfile=dialect1…dialectn) 
is the responsability of the TTWG.

So, I'd suggest the following changes (or similar):

s/We offer to refine the proposal that the codecs parameter be of the 
form:/We recommend MPEG to define the codecs parameter for subtitle and 
timed text tracks of the form:/
s/Where “/medaType/” is a fully qualified media type string, including 
parameters/Where “/mediaType/” is a fully qualified media type string, 
including parameters, as defined by the IANA registry for the data 
carried in the track/

s/, of the form:/To assist ISOBMFF players in identifying the flavor of 
TTML documents from the above proposed codecs value, the W3C TTWG will 
define: a) a new parameter to the TTML MIME to specify and combine short 
identifiers for profiles, b) a registry for the association between the 
short identifier and the associated specification of the TTML profile.

> Regards,
> Mike
> Michael A DOLAN
> TBT, Inc. PO Box 190
> Del Mar, CA 92014
> (m) +1-858-882-7497
> mdolan@newtbt.com <mailto:mdolan@newtbt.com>

Cyril Concolato
Multimedia Group / Telecom ParisTech
Received on Thursday, 16 October 2014 15:58:41 UTC

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