Subject: RE: [AVT] I-D ACTION:draft-singer-rtp-hdrext-00.txt

From: "Link, Brian" <[email-masked]>
Date: Tue, 14 Jun 2005 20:44:14 -0700

Hi Colin,

I support this effort. I think applications where metadata needs to be
associated with media content, but not carried inside the coded format,
will keep appearing. I am familiar with one that makes use of SMPTE
metadata like Dave covers in the second I-D and am working to learn how
best to generalize that use of metadata to address as many applications
as possible.

Regards,
Brian

---
Brian Link
Dolby Laboratories, 100 Potrero Ave., San Francisco, CA 94103
phone: 415-558-0324  fax: 415-863-1373
email: [email-masked]   alt email: [email-masked]

> -----Original Message-----
> From: [email-masked] [mailto:[email-masked]] On 
> Behalf Of Colin Perkins
> Sent: Tuesday, June 07, 2005 3:46 AM
> To: IETF AVT WG
> Cc: Dave Singer
> Subject: Re: [AVT] I-D ACTION:draft-singer-rtp-hdrext-00.txt
> 
> Folks,
> 
> I'd like to solicit feedback on this draft (and on draft-singer-smpte-
> rtp-01.txt) with a view to possibly accepting them as AVT 
> work items in the future. While the details need to be worked 
> out, is the view of the group that this general approach is 
> reasonable?
> 
> Colin
> 
> 
> 
> On 1 Jun 2005, at 21:16, Dave Singer wrote:
> > For the consideration of the AVT WG;  a new draft, all comments 
> > welcome.
> >
> > * * * *
> >
> > A New Internet-Draft is available from the on-line Internet-Drafts 
> > directories.
> >
> >
> >     Title        : A general mechanism for RTP Header Extensions
> >     Author(s)    : D. Singer
> >     Filename    : draft-singer-rtp-hdrext-00.txt
> >     Pages        : 7
> >     Date        : 2005-6-1
> >
> > This document provides a general mechanism to use the header-
> >    extension feature of RTP (the Real Time Protocol).  It 
> provides the
> >    option to use a small number of small extensions in each RTP 
> > packet,
> >    where the universe of possible extensions is large and 
> > unregistered.
> >    The actual extensions in use in a session are signaled 
> in the setup
> >    information for that session.
> >
> > A URL for this Internet-Draft is:
> > http://www.ietf.org/internet-drafts/draft-singer-rtp-hdrext-00.txt
> >
> >
> > Internet-Drafts are also available by anonymous FTP. Login with the 
> > username "anonymous" and a password of your e-mail address. After 
> > logging in, type "cd internet-drafts" and then
> >     "get draft-singer-rtp-hdrext-00.txt".
> >
> > A list of Internet-Drafts directories can be found in 
> > http://www.ietf.org/shadow.html or 
> > ftp://ftp.ietf.org/ietf/1shadow-sites.txt
> >
> >
> > Internet-Drafts can also be obtained by e-mail.
> >
> > Send a message to:
> >     [email-masked].
> > In the body type:
> >     "FILE /internet-drafts/draft-singer-rtp-hdrext-00.txt".
> >
> > NOTE:    The mail server at ietf.org can return the document in
> >     MIME-encoded form by using the "mpack" utility.  To use this
> >     feature, insert the command "ENCODING mime" before the "FILE"
> >     command.  To decode the response(s), you will need "munpack" or
> >     a MIME-compliant mail reader.  Different MIME-compliant mail 
> > readers
> >     exhibit different behavior, especially when dealing with
> >     "multipart" MIME messages (i.e. documents which have been split
> >     up into multiple messages), so check your local documentation on
> >     how to manipulate these messages.
> >
> >
> > Below is the data which will enable a MIME compliant mail reader 
> > implementation to automatically retrieve the ASCII version of the 
> > Internet-Draft.
> >
> >
> > [The following attachment must be fetched by mail. 
> Command-click the 
> > URL below and send the resulting message to get the attachment.] 
> > <mailto:[email-masked]?body=ENCODING%20mime%0D%0AFILE%20/
> > internet-drafts/draft-singer-rtp-hdrext-00.txt>
> > [The following attachment must be fetched by ftp.  
> Command-click the 
> > URL below to ask your ftp client to fetch it.] 
> > <ftp://ftp.ietf.org/internet-drafts/draft-singer-rtp-hdrext-00.txt>
> >
> > --
> > David Singer
> > Apple Computer/QuickTime
> >
> > _______________________________________________
> > Audio/Video Transport Working Group
> > [email-masked]
> > https://www1.ietf.org/mailman/listinfo/avt
> >
> 
> 
> _______________________________________________
> Audio/Video Transport Working Group
> [email-masked]
> https://www1.ietf.org/mailman/listinfo/avt
> 

-----------------------------------------
This message (including any attachments) may contain confidential
information intended for a specific individual and purpose.  If you are
not the intended recipient, delete this message.  If you are not the
intended recipient, disclosing, copying, distributing, or taking any
action based on this message is strictly prohibited.

_______________________________________________
Audio/Video Transport Working Group
[email-masked]
https://www1.ietf.org/mailman/listinfo/avt