[ttml2] Pull Request: Issue 0195 add ad xsds

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

== Issue 0195 add ad xsds ==
Address #349 review comments and add XSD and Relax schema support for the audio attributes.

See https://github.com/w3c/ttml2/pull/393

Received on Wednesday, 14 June 2017 16:07:45 UTC