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Re: ISSUE-340 (profile designator clarification): Make clear that the use of the ttp:profile attribute is not required. [TTML IMSC 1.0]

From: Pierre-Anthony Lemieux <pal@sandflow.com>
Date: Wed, 10 Sep 2014 14:57:31 -0700
Message-ID: <CAF_7JxBv4yXx-w71_4XtNRqErzGUJLaidEKfjxaZKoVEzG7R_Q@mail.gmail.com>
To: Timed Text Working Group <public-tt@w3.org>
Addressed at https://dvcs.w3.org/hg/ttml/rev/dff9fc930069

See Sections 6.1 and 7.1.

Best,

-- Pierre


On Wed, Aug 27, 2014 at 1:31 PM, Timed Text Working Group Issue
Tracker <sysbot+tracker@w3.org> wrote:
> ISSUE-340 (profile designator clarification): Make clear that the use of the ttp:profile attribute is not required. [TTML IMSC 1.0]
>
> http://www.w3.org/AudioVideo/TT/tracker/issues/340
>
> Raised by: Frans de Jong
> On product: TTML IMSC 1.0
>
> ----------------------------
> Request
> ----------------------------
> Section: 5.1 (Text Profile Constraints -> Profile Designator)
>
> Further details should be added to this section to clarify that the association of a documents with a the IMSC profile designator does not require the presence of the designator in the XML document. Possibly some examples how to associate the designator to a document could be given (e.g. through the use of an metadata element not in TTML namespace). It should be made clear that the use of the ttp:profile attribute is not required.
>
> ---------------------------------------
> Background
> -------------------------------------
>
> IMSC says: A subtitle document conforming to the Text Profile SHALL be
> associated with the following profile designator:
> (https://dvcs.w3.org/hg/ttml/raw-file/tip/ttml-ww-profiles/ttml-ww-profiles.html#text-profile-designator)
>
> EBU-TT-D does not allow to use the TTML profile element or the profile attribute. The reason why EBU-TT did not include the profile mechanism was that some of the strategies defined by profile mechanisms did not correlate with the EBU-TT requirements, e.g. according to the profile mechanism a processor is required to reject a document if a required feature of an "associated" profile is not supported (regardless if this feature is used in the document or not).
>
>
>
>
Received on Wednesday, 10 September 2014 21:58:21 UTC

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