Re: [rtcweb] Codec Draft
Stephan Wenger <stewe@stewe.org> Thu, 03 November 2011 20:28 UTC
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Date: Thu, 03 Nov 2011 13:28:28 -0700
From: Stephan Wenger <stewe@stewe.org>
To: "Bran, Cary" <Cary.Bran@plantronics.com>, "rtcweb@ietf.org" <rtcweb@ietf.org>
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Subject: Re: [rtcweb] Codec Draft
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Hi Cary, WG, Cary, how did you come to your conclusion that the WG has achieved consensus on a subject like this: If the MPEG-LA issues an intent to offer H.264 baseline profile on a royalty free basis for use in browsers before March 15, 2012, then the REQUIRED video codecs will be H.264 baseline. If this does not happen by that the date, then the REQUIRED video codec will be VP8 [I-D.webm]. Or this WebRTC clients are REQUIRED to implement the following audio codecs. [] o Opus [draft-ietf-codec-opus] I may have missed it in the flood of emails on this reflector, but I do not recall having seen any discussion whatsoever towards a decision between the two video codecs mentioned, let alone a decision made on commercial constraints and an attached timeline. Please note that I could most likely agree to the video codec issues as drafted, with the exception of the timeline, which is IMO overly and unnecessarily ambitious. Similarly, I do not recall a sufficiently in-depth discussion about audio codecs (though there has been a bit more discussion on the reflector in this regard). I find it strange that we consider making an declared-as-royalty-bearing audio codec mandatory, without even having the slightest idea of the licensing terms beyond the RAND terms offered. Strangely, we are not providing the right holder with a timeline similar as the one used for H.264. Perhaps we should work with the Qualcomm guys to see whether they would be willing to provide an RF license with a field of use restriction to webrtc. As the very minimum, I would request the opus codec being profiled such that most obvious matches between patent claims offered under royalty bearing RAND terms and opus encoder and decoder as to be used in webrtc be eliminated. To summarize, without having those (and perhaps a few more) points discussed in public on the reflector, I believe that it is too early to adopt your draft as a WG draft. Stephan From: "Bran, Cary" <Cary.Bran@plantronics.com> Date: Mon, 31 Oct 2011 22:25:48 +0000 To: "rtcweb-chairs@tools.ietf.org" <rtcweb-chairs@tools.ietf.org> Cc: "rtcweb@ietf.org" <rtcweb@ietf.org> Subject: [rtcweb] Codec Draft Hello WebRTC chairs, I have updated and submitted a 02 version of the WebRTC Codec draft: http://tools.ietf.org/id/draft-cbran-rtcweb-codec-01.txt I believe that this draft is representative of areas where the working group has achieved consensus and at this time I would like to ask that the 01 draft be adopted as a working group document. I look forward to your feedback. Regards, Cary Bran Senior Director Advanced Software Technology and Architecture Office: +1 831-458-7737 Cell: +1 206-661-2398 Plantronics Simply Smarter Communications 345 Encinal St., Santa Cruz, CA 95060 CONFIDENTIALITY NOTICE: This e-mail transmission, and any documents, files or previous e-mail messages attached to it, may contain information that is confidential and/or legally privileged. If you are not the intended recipient, or a person responsible for delivering it to the intended recipient, please DO NOT disclose the contents to another person, store or copy the information in any medium, or use any of the information contained in or attached to this transmission for any purpose. If you have received this transmission in error, please immediately notify the sender by reply email or at privacy@plantronics.com, and destroy the original transmission and its attachments without reading or saving in any manner. For further information about Plantronics - the Company, its products, brands, partners, please visit our website www.plantronics.com. _______________________________________________ rtcweb mailing list rtcweb@ietf.org https://www.ietf.org/mailman/listinfo/rtcweb
- [rtcweb] Codec Draft Bran, Cary
- Re: [rtcweb] Codec Draft Stephan Wenger
- Re: [rtcweb] Codec Draft Bran, Cary
- Re: [rtcweb] Codec Draft Bran, Cary
- Re: [rtcweb] Codec Draft Magnus Westerlund
- Re: [rtcweb] Codec Draft Xavier Marjou
- Re: [rtcweb] Codec Draft Xavier Marjou
- Re: [rtcweb] Codec Draft Iñaki Baz Castillo
- Re: [rtcweb] Codec Draft Bran, Cary
- Re: [rtcweb] Codec Draft Christer Holmberg
- Re: [rtcweb] Codec Draft Harald Alvestrand
- Re: [rtcweb] Codec Draft Iñaki Baz Castillo
- Re: [rtcweb] Codec Draft Xavier Marjou
- Re: [rtcweb] Codec Draft Randell Jesup
- Re: [rtcweb] Codec Draft Iñaki Baz Castillo
- Re: [rtcweb] Codec Draft Roman Shpount
- Re: [rtcweb] Codec Draft Cullen Jennings
- Re: [rtcweb] Codec Draft Ralph Giles
- Re: [rtcweb] Codec Draft Ralph Giles
- Re: [rtcweb] Codec Draft Cullen Jennings
- Re: [rtcweb] Codec Draft Bernard Aboba
- Re: [rtcweb] Codec Draft Jean-Marc Valin
- Re: [rtcweb] Codec Draft Miguel Casas-Sanchez
- Re: [rtcweb] Codec Draft Ralph Giles
- Re: [rtcweb] Codec Draft Stefan Håkansson
- Re: [rtcweb] Codec Draft Rob Glidden
- Re: [rtcweb] Codec Draft Bran, Cary
- Re: [rtcweb] Codec Draft Harald Alvestrand
- Re: [rtcweb] Codec Draft Bran, Cary
- Re: [rtcweb] Codec Draft Lorenzo Miniero
- Re: [rtcweb] Codec Draft Rob Glidden
- Re: [rtcweb] Codec Draft Rob Glidden
- Re: [rtcweb] Codec Draft Rob Glidden
- Re: [rtcweb] Codec Draft Rob Glidden
- Re: [rtcweb] Codec Draft Timothy B. Terriberry
- Re: [rtcweb] Codec Draft Ted Hardie
- Re: [rtcweb] Codec Draft Stephan Wenger
- Re: [rtcweb] Codec Draft Timothy B. Terriberry
- Re: [rtcweb] Codec Draft Stephan Wenger
- Re: [rtcweb] Codec Draft Rob Glidden
- Re: [rtcweb] Codec Draft Cullen Jennings
- Re: [rtcweb] Codec Draft Rob Glidden
- Re: [rtcweb] Codec Draft Rob Glidden
- Re: [rtcweb] Codec Draft Marshall Eubanks
- Re: [rtcweb] Codec Draft Cullen Jennings