Re: [MMUSIC] I-D Action: draft-ietf-mmusic-sdp-simulcast-14.txt

Bo Burman <bo.burman@ericsson.com> Tue, 05 March 2019 08:47 UTC

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From: Bo Burman <bo.burman@ericsson.com>
To: "mmusic@ietf.org" <mmusic@ietf.org>
Thread-Topic: I-D Action: draft-ietf-mmusic-sdp-simulcast-14.txt
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Subject: Re: [MMUSIC] I-D Action: draft-ietf-mmusic-sdp-simulcast-14.txt
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This version is an editorial update, correcting the order of SDP c= and t=
lines in the SDP examples that was previously not aligned with the order
mandated by RFC 4566.
/Bo
(as individual)

> -----Original Message-----
> From: I-D-Announce <i-d-announce-bounces@ietf.org> On Behalf Of
> internet-drafts@ietf.org
> Sent: den 5 mars 2019 09:44
> To: i-d-announce@ietf.org
> Cc: mmusic@ietf.org
> Subject: I-D Action: draft-ietf-mmusic-sdp-simulcast-14.txt
> 
> 
> A New Internet-Draft is available from the on-line Internet-Drafts
directories.
> This draft is a work item of the Multiparty Multimedia Session Control WG
of
> the IETF.
> 
>         Title           : Using Simulcast in SDP and RTP Sessions
>         Authors         : Bo Burman
>                           Magnus Westerlund
>                           Suhas Nandakumar
>                           Mo Zanaty
> 	Filename        : draft-ietf-mmusic-sdp-simulcast-14.txt
> 	Pages           : 41
> 	Date            : 2019-03-05
> 
> Abstract:
>    In some application scenarios it may be desirable to send multiple
>    differently encoded versions of the same media source in different
>    RTP streams.  This is called simulcast.  This document describes how
>    to accomplish simulcast in RTP and how to signal it in SDP.  The
>    described solution uses an RTP/RTCP identification method to identify
>    RTP streams belonging to the same media source, and makes an
>    extension to SDP to relate those RTP streams as being different
>    simulcast formats of that media source.  The SDP extension consists
>    of a new media level SDP attribute that expresses capability to send
>    and/or receive simulcast RTP streams.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-mmusic-sdp-simulcast/
> 
> There are also htmlized versions available at:
> https://tools.ietf.org/html/draft-ietf-mmusic-sdp-simulcast-14
> https://datatracker.ietf.org/doc/html/draft-ietf-mmusic-sdp-simulcast-14
> 
> A diff from the previous version is available at:
> https://www.ietf.org/rfcdiff?url2=draft-ietf-mmusic-sdp-simulcast-14
> 
> 
> Please note that it may take a couple of minutes from the time of
submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
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