RE: ARIB-TT

Hi,

There are nine extensions for arib-tt name space. It is derived from legacy Japanese subtitle system.

arib-tt:font-face : Extended for Gaiji (External character) feature using svg/woff font file

arib-tt:keyframes : Changing various style according to keyframe element

arib-tt:audio : play receiver's embedded sound or cli sound file in subtitle stream

arib-tt:animation : Define animation timing and style for arib-tt:keyframes

arib-tt:border : syntax sugar for border setting. (style, width, color)

arib-tt:letter-spacing : letter spacing specified by pixel value

arib-tt:marquee : marquee function

arib-tt:ruby : text ruby (much simplified W3C ruby spec…)

arib-tt:text-shadow : text shadow setting offset X/Y and blur radius and color


Hope this helps,

-- Yoshiharu

From: Michael Dolan [mailto:mdolan@newtbt.com]
Sent: Saturday, November 15, 2014 8:33 AM
To: 'TTWG'
Subject: RE: ARIB-TT

I asked a Japanese TV colleague last week.  I was told that it’s currently authorized for UHDTV OTA and is planned for OTT. I’m trying to learn more and see if they want to get their extensions added to TTML/IMSC…

                Mike

From: Glenn Adams [mailto:glenn@skynav.com]
Sent: Friday, November 14, 2014 3:28 PM
To: TTWG
Subject: ARIB-TT

I've recently been apprised of the work by ARIB on extensions to TTML via ARIB-TT, pages number 57 and following in [1].

We should try to learn more about who is doing this work and interface with them regarding a number of extensions they have defined (in an ARIB defined namespace).

[1] http://www.arib.or.jp/english/html/overview/doc/2-STD-B62v1_0-1p2.pdf