[ttml2] Pull Request: Correct semantics for DAR/PAR when SAR is specified (#539).

skynavga has just submitted a new pull request for https://github.com/w3c/ttml2:

== Correct semantics for DAR/PAR when SAR is specified (#539). ==
Closes #539.

See https://github.com/w3c/ttml2/pull/545

Received on Wednesday, 10 January 2018 01:15:06 UTC