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<body style="overflow-wrap:break-word; word-break: break-word;"><div class="mail_android_message" style="line-height: 1; padding: 0.5em">Have to do a correction (as you tell the primary interest will be in streaming).<br/><br/>the RFC 3261 (SIP) would be rather used for peer-to-peer multimedia calls.<br/><br/>when it is about uni-directional streaming from a server to a client, then the RFC 7826 RTSP (real time streaming protocol) seems to be the right choice.<br/><br/>kr<br/><br/>-- <br/>Diese Nachricht wurde von meinem Android Mobiltelefon mit GMX Mail gesendet.</div><div class="mail_android_quote" style="line-height: 1; padding: 0.3em"><html><body>Am 30.11.20, 18:44 schrieb Don Brutzman <brutzman@nps.edu>:</body></html><blockquote class="gmail_quote" style="margin: 0.8ex 0pt 0pt 0.8ex; border-left: 1px solid rgb(204, 204, 204); padding-left: 1ex;">
Thanks for the review and follow-through.
<br>
<br> On 11/29/2020 12:29 PM, Christoph Valentin wrote:
<br> >
<br> > retransmitted due to connectivity issues.....
<br> >
<br> > --
<br> > Diese Nachricht wurde von meinem Android Mobiltelefon mit GMX Mail gesendet.
<br> > Am 29.11.20, 00:10 schrieb Christoph Valentin <christoph.valentin@gmx.at>:
<br> >
<br> > Hello,
<br> > A few notes from my perspective:
<br> > - RFC 1889 RTP has been obsoleted by RFC 3550 et. al. (STD 64)
<br>
<br> Aha, excellent catch.
<br>
<br> I had assumed prior RFCs would be annotated to indicate when they had been superceded. That is not the case (at this url at least).
<br>
<br> Better way to check is
<br>
<br> * RFC Editor
<br> <a href="https://www.rfc-editor.org">https://www.rfc-editor.org</a>
<br>
<br> which indicates as you write above and leads to
<br>
<br> * <a href="https://www.rfc-editor.org/info/rfc3550">https://www.rfc-editor.org/info/rfc3550</a>
<br>
<br> Am thinking these are better URL addresses to use than the classic ietf.org/rfc addresses since they are authoritative and since the RFC Editor controls them. Certainly more convenient for reader since latest status and multiple forms are provided for each RFC.
<br>
<br> I am now going through many checks of all the RFCs, applying your change and a number of related ones. This will appear later today. Replying now FYI.
<br>
<br> Thanks very much Christoph for excellent feedback.
<br>
<br> > If you asked me, I would add following informational resources
<br> > - RFC 3551 et. al. (AVP) A/V Profile - how to transmit audio/video over RTP?
<br> > - I would suggest to write a new RFC xxxx Collaborative 3D Profile (C3P) - how to transmit shared state over RTP? if not yet exist
<br> > - Stream Control Transmission Protocol RFC 4960 (SCTP could be used for secure transport of RTP user data)
<br> > - RFC 3261 et.al. (about 100 RFCs) - Session Initiation Protocol - SIP - for dynamic allocation of RTP streams
<br>
<br> Well this certainly remains a worthy agenda for applied research.
<br>
<br> As far as the X3D specification goes, we only add references when they help explain requirements or guidelines in the specification.
<br>
<br> As far as audio/video streaming goes, I think we will learn more (about audio at least) as we implement the W3C Audio API and corresponding Streams W3C Draft Recommendations.
<br>
<br>
<br> > All the best
<br> > Christoph
<br> > *Gesendet:* Samstag, 28. November 2020 um 20:32 Uhr
<br> > *Von:* "Don Brutzman" <brutzman@nps.edu>
<br> > *An:* "X3D Graphics public mailing list" <x3d-public@web3d.org>
<br> > *Betreff:* [x3d-public] X3D4 endgame review: normative references and informative bibliography
<br> > We've updated a number of reference and bibliographic entries.
<br> >
<br> > Request review and comment. A number of these references remain valid but are somewhat dated, and we have added several new technologies... so if additional or different entries seem appropriate, then please suggest them.
<br> >
<br> > [1] X3D4 Architecture, Normative references
<br> > <a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD3/Part01/references.html">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD3/Part01/references.html</a> <<a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD3/Part01/references.html">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD3/Part01/references.html</a>>
<br> >
<br> > [2] X3D4 Architecture, (Informative) bibliography
<br> > <a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD3/Part01/bibliography.html">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD3/Part01/bibliography.html</a> <<a href="https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD3/Part01/bibliography.html">https://www.web3d.org/specifications/X3Dv4Draft/ISO-IEC19775-1v4-WD3/Part01/bibliography.html</a>>
<br> >
<br> > Have fun with X3D4! 8)
<br> >
<br> > all the best, Don
<br> > --
<br> > Don Brutzman Naval Postgraduate School, Code USW/Br brutzman@nps.edu
<br> > Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149
<br> > X3D graphics, virtual worlds, navy robotics <a href="http://faculty.nps.edu/brutzman">http://faculty.nps.edu/brutzman</a> <<a href="http://faculty.nps.edu/brutzman">http://faculty.nps.edu/brutzman</a>>
<br> >
<br> > _______________________________________________
<br> > x3d-public mailing list
<br> > x3d-public@web3d.org
<br> > <a href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a> <<a href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a>>
<br> >
<br> >
<br> > _______________________________________________
<br> > x3d-public mailing list
<br> > x3d-public@web3d.org
<br> > <a href="http://web3d.org/mailman/listinfo/x3d-public_web3d.org">http://web3d.org/mailman/listinfo/x3d-public_web3d.org</a>
<br> >
<br>
<br> all the best, Don
<br> --
<br> Don Brutzman Naval Postgraduate School, Code USW/Br brutzman@nps.edu
<br> Watkins 270, MOVES Institute, Monterey CA 93943-5000 USA +1.831.656.2149
<br> X3D graphics, virtual worlds, navy robotics <a href="http://faculty.nps.edu/brutzman">http://faculty.nps.edu/brutzman</a>
<br>
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