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[ttml2] No restriction on time expression for smpte discontinuous mode

From: Nigel Megitt via GitHub <sysbot+gh@w3.org>
Date: Fri, 20 May 2016 09:10:12 +0000
To: public-tt@w3.org
Message-ID: <issues.opened-155918875-1463735411-sysbot+gh@w3.org>
nigelmegitt has just created a new issue for 
https://github.com/w3c/ttml2:

== No restriction on time expression for smpte discontinuous mode ==
When `ttp:timeBase="smpte"` and `ttp:markerMode="discontinuous"` it is
 clear that calculations shall not be done on time expressions and 
they cannot be converted to real times, however there's no restriction
 that the time expressions shall use clock time with frames (i.e. the 
form "hh:mm:ss:ff"), and there's no explanation for how any 
alternative time expression should be related back into a smpte 
timecode.

https://w3c.github.io/ttml2/spec/ttml2.html#timing-time-value-expressions


Please view or discuss this issue at 
https://github.com/w3c/ttml2/issues/161 using your GitHub account
Received on Friday, 20 May 2016 09:10:14 UTC

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