- From: Pierre-Antoine <pierre-antoine.champin@liris.cnrs.fr>
- Date: Mon, 12 Oct 2009 10:00:53 +0200
- To: Felix Sasaki <felix.sasaki@fh-potsdam.de>
- CC: "public-media-annotation@w3.org" <public-media-annotation@w3.org>
Hi Felix, all, Just to be clear: my remark about the Language property was not to advocate RFC4646 over other standards -- thanks to Felix for this comprehensive update, btw. It was merely about *requiring* the use of a given standard rather than just *encouraging* it. As for the choice of which standard, BCP 47 seems fine, indeed. pa Le 09/10/2009 19:10, Felix Sasaki a écrit : >> - I suggest that Language is *required* to comply with RFC4646, or >> this will hinder interoperability. > > The successor of RFC 4646 has been approved recently, see > http://tools.ietf.org/html/rfc5646 . The best thing is to refer to BCP > 47, that is the "latest link" version of "language tags" and "matching > of language tags". See http://www.rfc-editor.org/rfc/bcp/bcp47.txt > > Requiring compliance with BCP 47 is fine, since language tags created > under this RFCs "sequence" (1766, 3066, 4646, RFC 5646) are > backward-compatible. E.g. an RFC 5646 language tag is an 1766 language > tag - but not the other way round. > > Best, > > Felix > > - is it ok that the unit for Duration is fixed to 'second'? Can all > used units be converted exactly to seconds? is a granularity of > seconds always sufficient for duration? > - is it ok for the bitrate to be a number? What about Variable Bit > Rate? Or would we raise NoValue in that case? (might be an option... > after all we dont seek exhaustiveness) > - it is not clearly explained what the 'context' of a rating is. > > Typos and minor remarks: > - in the abstract *and* section 1: "provide developers an > convenient" -> "provide developers with a convenient" > - in the abstract "Media Ontology Core Properties" should link to > the ontology document > - in the secton about License, the interface of the return value is > not give, > - in the section about Compression, the given interface is FrameSize > > I have other remarks, somehow deeper, but that shouldn't prevent us > from publishing the first draft, I think. > > pa > >
Received on Monday, 12 October 2009 08:01:27 UTC