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[ttml2] Profile related features should be optional

From: Nigel Megitt via GitHub <sysbot+gh@w3.org>
Date: Tue, 27 Feb 2018 09:15:48 +0000
To: public-tt@w3.org
Message-ID: <issues.opened-300548434-1519722948-sysbot+gh@w3.org>
nigelmegitt has just created a new issue for https://github.com/w3c/ttml2:

== Profile related features should be optional ==
In the transformation and processor profiles, the following feature designators should be marked as optional rather than required:

* `#contentProfiles`
* `#inferProcessorProfile`
* `#permitFeatureNarrowing`
* `#permitFeatureWidening`
* `#profile-version-2`

Rationale: It is reasonable for processors to support TTML2 in processing contexts where profile processing is not required and to omit support for those features.

Please view or discuss this issue at https://github.com/w3c/ttml2/issues/683 using your GitHub account
Received on Tuesday, 27 February 2018 09:19:18 UTC

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