RE: Reigistry for tv:URI's
"Keesmaat, N.W. \(Iko\)" <iko.keesmaat@tno.nl> Thu, 05 October 2006 07:37 UTC
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Subject: RE: Reigistry for tv:URI's
Date: Thu, 05 Oct 2006 09:36:06 +0200
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Thread-Topic: Reigistry for tv:URI's
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From: "Keesmaat, N.W. (Iko)" <iko.keesmaat@tno.nl>
To: Keith Moore <moore@cs.utk.edu>
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Cc: discuss@apps.ietf.org, "Zigmond, Dan" <djz@google.com>
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Keith, I do not understand what you driving at here. In RFC2838 the tv:URI was explicitly defined as an identifier of television broadcasts. Are we having a misunderstanding about what a TV broadcast is? What we are needing is a way to identify what people would call *the* TV broadcast, i.e. if you have a device that can display NBC as received over the air and NBC as received over the cable and they are displaying the same television content at the same time, then that is what we would like to refer to. Whether or not you need NTSC decoding software/hardware to view the one and PAL decoding software/hardware to view the other is not important. That is lower level information that may be locally configured. Does this make sense to you? Iko. =============================== Iko Keesmaat TNO Information and Communication Technology E-mail: iko.keesmaat@tno.nl -----Original Message----- From: Keith Moore [mailto:moore@cs.utk.edu] Sent: donderdag 5 oktober 2006 0:00 To: Keesmaat, N.W. (Iko) Cc: discuss@apps.ietf.org Subject: Re: Reigistry for tv:URI's > In our view the tv:URI should identify a TV broadcast. I am not sure that this is a good thing. What is important about distinguishing tv: from other URIs? Is it that the signal is encoded using NTSC or PAL? Or will MPEG do? Is it that the signal is transmitted using radio frequency electromagnetic radiation through the air? Or is it okay if the signal is transmitted over cable? What about satellite? Does it matter how it's modulated? IMO, one of the goals of the tv: URI should be to permit convergence so that different sources of video programming can be viewed by the same computer program (or set-top box, whatever) while at the same time presenting the viewer with a reasonably clean user interface for selecting between different sources, and probably allowing those program sources to be linked to from other sources - say from a web page or email reader. That doesn't inherently mean that tv: URI should be usable by any kind of video programming source, but it probably does mean that there should be _some_ level of naming which can be used by any kind of video programming source. From my point-of-view, whether tv: is the higher-level name that maps to one or more lower-level services, or whether tv: is a specific lower-level service and there's a higher-level name (say a URN) to describe the video programming source, is almost arbitrary - as long as the relationship between the two levels of naming is clear. Though it seems that there is already some investment in the tv: URL prefix along the former lines. Keith This e-mail and its contents are subject to the DISCLAIMER at http://www.tno.nl/disclaimer/email.html
- RE: Reigistry for tv:URI's Keesmaat, N.W. (Iko)
- RE: Reigistry for tv:URI's Deventer, M.O. (Oskar) van
- Re: Reigistry for tv:URI's Lisa Dusseault
- Reigistry for tv:URI's Deventer, M.O. (Oskar) van
- Re: Reigistry for tv:URI's Eliot Lear
- Re: Reigistry for tv:URI's Mark Baker
- RE: Reigistry for tv:URI's Deventer, M.O. (Oskar) van
- Re: Reigistry for tv:URI's John C Klensin
- RE: Reigistry for tv:URI's John C Klensin
- RE: Reigistry for tv:URI's Keesmaat, N.W. (Iko)
- Re: Reigistry for tv:URI's Keith Moore
- RE: Reigistry for tv:URI's Keesmaat, N.W. (Iko)
- Re: Reigistry for tv:URI's Keith Moore
- RE: Reigistry for tv:URI's Keesmaat, N.W. (Iko)
- Re: Reigistry for tv:URI's Clive D.W. Feather
- Re: Reigistry for tv:URI's Keith Moore
- RE: Reigistry for tv:URI's Keesmaat, N.W. (Iko)
- ETSI TISPAN interest in tv:URI Deventer, M.O. (Oskar) van
- RE: ETSI TISPAN interest in tv:URI Deventer, M.O. (Oskar) van