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Re: ISSUE-2: What is the mime type of a media fragment? What is its relation with its parent resource?

From: RaphaŽl Troncy <Raphael.Troncy@cwi.nl>
Date: Tue, 27 Jan 2009 16:06:48 +0100
Message-ID: <497F2308.3080604@cwi.nl>
To: David Singer <singer@apple.com>
CC: Michael Hausenblas <michael.hausenblas@deri.org>, Media Fragment <public-media-fragment@w3.org>

Dear Dave,

> But this gets semantically tricky if there is sound;  what is the 
> correct representation of a point in time of a sound track?  It's not 
> right to drop it from the fragment (oof, we'd need media-type rules for 
> what types get dropped and what don't).
> 
> This is steering me towards wondering if a piece of X, in time, 
> necessarily has some extension in time, i.e. a time-point is not a 
> fragment (can you see a zero-width character if you meet one in the 
> street?).

Hum, does it mean we should put some restrictions in defining media 
fragments and in particular forbid to request spatio-temporal points? 
That is, for the temporal dimension, only non-empty interval can be 
requested, and for the the spatial dimension, only non-empty bounding 
box can be requested? Can you think of other restrictions?
Best regards.

   RaphaŽl

-- 
RaphaŽl Troncy
CWI (Centre for Mathematics and Computer Science),
Science Park 123, 1098 XG Amsterdam, The Netherlands
e-mail: raphael.troncy@cwi.nl & raphael.troncy@gmail.com
Tel: +31 (0)20 - 592 4093
Fax: +31 (0)20 - 592 4312
Web: http://www.cwi.nl/~troncy/
Received on Tuesday, 27 January 2009 15:07:36 GMT

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