- From: Raphaël Troncy <Raphael.Troncy@cwi.nl>
- Date: Tue, 27 Jan 2009 16:06:48 +0100
- 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. Raphaël -- Raphaël 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 UTC