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[imsc] tts:origin/tts:position constraint applies to Text profile only

From: Stefan Pöschel via GitHub <sysbot+gh@w3.org>
Date: Fri, 06 Jul 2018 07:19:33 +0000
To: public-tt@w3.org
Message-ID: <issues.opened-338831901-1530861572-sysbot+gh@w3.org>
spoeschel has just created a new issue for https://github.com/w3c/imsc:

== tts:origin/tts:position constraint applies to Text profile only ==
In IMSC 1.1 it is not allowed that both `tts:origin` and `tts:position` occur in the same TTML document. For `tts:position` this is covered by § 8.4.8, being a Text profile constraint. For `tts:origin` this is handled by § 7.12.9, being a common constraint however.

I think the constraint affecting `tts:origin` can instead be moved to § 8.4.7 (becoming a Text profile constraint), as `tts:position` is prohibited in Image profile anyway. Hence the constraint actually applies to Text profile only.

Please view or discuss this issue at https://github.com/w3c/imsc/issues/418 using your GitHub account
Received on Friday, 6 July 2018 07:19:35 UTC

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