W3C home > Mailing lists > Public > public-tt@w3.org > February 2013

RE: TTML Schema Verification

From: Michael Dolan <mdolan@newtbt.com>
Date: Wed, 13 Feb 2013 17:14:43 -0800
To: <public-tt@w3.org>
Message-ID: <00aa01ce0a50$ad2b7190$078254b0$@newtbt.com>
I see. Yes, the full schema will help with that.  Although it is permissible
to add private metadata (although not like that), so I don't know how you
police that since you can still create equivalent, conforming TTML.


I mentioned the subsets since there are tighter schemas available.  The W3C
schemas can generate a number of false positives - using xs:string datatypes
rather than enum and regex.




From: David Ronca [mailto:dronca@netflix.com] 
Sent: Wednesday, February 13, 2013 5:03 PM
To: public-tt@w3.org
Subject: RE: TTML Schema Verification


> Any chance they are really trying to conform with a subset profile such as



We are seeing obvious schema issues like this: tts:textAlign="after".  Also
seeing the positioning model below that does not appear to be a schema
error, but is not defined in the spec: 


<p begin="00:00:01.40" end="00:00:04.13" region="speaker"
tts:textAlign="right"><metadata ccrow="12" cccol="8"/>[crowd cheering]</p>

Received on Thursday, 14 February 2013 01:15:20 UTC

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