[imsc] Pull Request: Apply tts:origin constraints to tts:position

palemieux has just submitted a new pull request for https://github.com/w3c/imsc:

== Apply tts:origin constraints to tts:position ==
Tweak prose tts:origin prose

Close #366

See https://github.com/w3c/imsc/pull/397

Received on Thursday, 21 June 2018 20:08:44 UTC