Re: [Slim] Proposed 5.4 text

Gunnar Hellström <gunnar.hellstrom@omnitor.se> Tue, 21 November 2017 22:50 UTC

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To: Randall Gellens <rg+ietf@randy.pensive.org>, Brian Rosen <br@brianrosen.net>, Bernard Aboba <bernard.aboba@gmail.com>, Paul Kyzivat <pkyzivat@alum.mit.edu>
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Subject: Re: [Slim] Proposed 5.4 text
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Den 2017-11-21 kl. 23:08, skrev Randall Gellens:
> Based on the text and comments from Gunnar, brian, Paul, and Bernard, 
> here is what I propose to replace section 5.4 with:
>
> 5.4.  Usage Notes
>
>    A sign language tag with a video stream is interpreted as an
>    indication for sign language in the video stream.  A non-sign
>    language tag with text media is interpreted as an indication for
>    written language.  A non-sign language tag with audio media is
>    interpreted as an indication for spoken language.
>
>    In the IANA registry of language subtags per BCP 47 [RFC5646], a
>    language subtag with a Type field "extlang" combined with a Prefix
>    field value "sgn" indicates a sign language tag.  The absense of
>    such "sgn" prefix indicates a non-sign language tag.  This document
>    does not define any other use for language tags in video media
>    (such as how to indicate visible captions).
>
>    This document does not define the use of sign language tags in text
>    or audio media.
>
>    This document does not define the use of language tags in media
>    other than interactive streams of audio, video, and text (such as
>    "message" or "application").
<GH> Good, I hope that "non-sign language" can be an accepted term.
I provide a slightly modified 5.4 proposal, with a bit more consistent 
language in the first paragraph, and the mentioning of further work or 
application agreement reinserted. I think that is better than just 
saying that it is not defined. I also added the spoken language in video 
is a view of a speaker according to recent discussion in another mail.
I really hope to find that we are converging now.

------------------------------new text 
-------------------------------------------
5.4 Media, Language and Modality indications

    A sign language tag with video media is interpreted as an
    indication for sign language in the video stream.  A non-sign
    language tag with text media is interpreted as an indication for
    written language.  A non-sign language tag with audio media is
    interpreted as an indication for spoken language. A non-sign
   language tag with video media is interpreted as a view of a
   speaking person. This document does not define any other
   use for language tags in video media (such as how to indicate
   visible captions in the video stream).

    In the IANA registry of language subtags per BCP 47 [RFC5646], a
    language subtag with a Type field "extlang" combined with a Prefix
    field value "sgn" indicates a sign language tag.  The absense of
    such "sgn" prefix indicates a non-sign language tag.

    This document does not define the use of sign language tags in text
    or audio media. This document does not define the use of language 
tags in media
    other than interactive streams of audio, video, and text (such as
    "message" or "application"). Such use may be supported by further work
    or application specific agreements.

---------------------------------------------------------------------------------------------
Gunnar

-- 
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Gunnar Hellström
Omnitor
gunnar.hellstrom@omnitor.se
+46 708 204 288