Known profiles of TTML

Dear all,

During the informal get-together of a few members of the text tracks 
community group during the W3C TPAC last week, a number of us were 
discussing the existence of a number of TTML profiles.

Two I know of are:
* The profile specified by the YouView consortium
http://www.youview.com/industry/wp-content/themes/youview/_site_media/resources/YouView_Core_Technical_Specification_1.0.pdf
(see section 4.4.1, page 119)

* EBU has a group working on Subtitles in XML: “This Group is 
investigating an XML -based format for use in subtitling production and 
exchange, based on W3C's TTML/DFXP specification.” -- 
http://tech.ebu.ch/groups/pdfxp


Could everyone help fill the gaps by pointing to the other profiles or 
profiling efforts you know of?

Also, as mentioned during our get-together, I went through the exercise 
of mapping which of the TTML features the BBC currently uses in its 
iPlayer subtitles. See attachment. HTH.

Thanks,
Olivier
-- 
Olivier Thereaux - BBC R&D Central Labs