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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: David Singer <singer@apple.com>
Date: Tue, 27 Jan 2009 16:10:21 +0100
Message-Id: <p06240848c5a4d42a6b42@[]>
To: Media Fragment <public-media-fragment@w3.org>

At 16:06  +0100 27/01/09, RaphaŽl Troncy wrote:
>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.

that is indeed my wonder.  "please give me the 
fragment of this image at this point" makes as 
little sense, indeed.
David Singer
Multimedia Standards, Apple Inc.
Received on Tuesday, 27 January 2009 15:12:56 UTC

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