Re: [rtcweb] ~"I'd love it if patents evaporated...If not now, when"
"Martin J. Dürst" <duerst@it.aoyama.ac.jp> Thu, 14 November 2013 06:25 UTC
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Date: Thu, 14 Nov 2013 15:25:19 +0900
From: "\"Martin J. Dürst\"" <duerst@it.aoyama.ac.jp>
Organization: Aoyama Gakuin University
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To: cowwoc <cowwoc@bbs.darktech.org>
References: <5282A340.7010405@gondwanaland.com> <20131113165526.GA13468@verdi> <5283DADA.2080806@alvestrand.no> <5283E530.8000409@bbs.darktech.org> <CAOJ7v-1F813jpQfjUrHxRQ4JAwU9--X25FY6P-B8=8ui9_zo4g@mail.gmail.com> <52845E0C.6090703@bbs.darktech.org>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] ~"I'd love it if patents evaporated...If not now, when"
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On 2013/11/14 14:22, cowwoc wrote: > On 13/11/2013 8:43 PM, Justin Uberti wrote: >> Regarding H.261: Consider the following clip, encoded at 256 kbps >> using H.261. >> http://www-mobile.ecs.soton.ac.uk/peter/h261/missa.norm.h261.mpg Thanks for the pointer to the sample. >> Do you think this quality (QCIF, grayscale, PSNR of 38) is acceptable >> for your users? > > That is hardly a scientific comparison. True, but that's not what I asked about. > And again, it is misleading to imply that I am advocating the mass-use > of H.261. I am only advocating the use of this codec in the 5-10% of > cases where the clients fail to agree on a common upgrade path (to VP8 > or H.264). In those cases, I'd happily accept H.261 instead of dropping > the call. You can still transcode, if you so wish. Having had a look at the sample, I'd say "it depends". If the video were used to discuss e.g. some details of a new physical product, higher resolution and color may be rather important, and H261 insufficient. If it's just to get a quick impression of the person at the other end of the call, I guess it would be okay, but in that use case, there's a high chance I'd overlay it with some other document even if the video quality was much better. If it's one of many videos of participants in a conference call, grayscale may be disappointing but better than nothing, the size may be just about right, and the (relatively speaking) high bandwidth may not be noticed. Regards, Martin.
- [rtcweb] ~"I'd love it if patents evaporated...If… Mike Linksvayer
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Basil Mohamed Gohar
- Re: [rtcweb] ~"I'd love it if patents evaporated.… David Singer
- [rtcweb] where that h264 plugin can be used Tim Panton
- Re: [rtcweb] ~"I'd love it if patents evaporated.… John Leslie
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Harald Alvestrand
- Re: [rtcweb] where that h264 plugin can be used Martin Thomson
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Adam Roach
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Ron
- Re: [rtcweb] ~"I'd love it if patents evaporated.… cowwoc
- Re: [rtcweb] ~"I'd love it if patents evaporated.… cowwoc
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Kaiduan Xie
- Re: [rtcweb] ~"I'd love it if patents evaporated.… cowwoc
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Michael Thornburgh
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Cullen Jennings (fluffy)
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Silvia Pfeiffer
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Ron
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Martin J. Dürst
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Justin Uberti
- Re: [rtcweb] ~"I'd love it if patents evaporated.… cowwoc
- Re: [rtcweb] ~"I'd love it if patents evaporated.… cowwoc
- Re: [rtcweb] ~"I'd love it if patents evaporated.… cowwoc
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Philipp Hancke
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Matthew Kaufman (SKYPE)
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Matthew Kaufman (SKYPE)
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Justin Uberti
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Martin J. Dürst
- Re: [rtcweb] ~"I'd love it if patents evaporated.… cowwoc
- Re: [rtcweb] ~"I'd love it if patents evaporated.… cowwoc
- Re: [rtcweb] ~"I'd love it if patents evaporated.… cowwoc
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Philipp Hancke
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Tim Panton
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Silvia Pfeiffer
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Jonathan Rosenberg
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Gili
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Maik Merten
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Göran Eriksson AP
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Leon Geyser
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Gili
- Re: [rtcweb] ~"I'd love it if patents evaporated.… John Leslie
- Re: [rtcweb] ~"I'd love it if patents evaporated.… John Leslie
- Re: [rtcweb] where that h264 plugin can be used Randell Jesup
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Mo Zanaty (mzanaty)
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Ron
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Mo Zanaty (mzanaty)
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Marco Stura
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Ron
- Re: [rtcweb] ~"I'd love it if patents evaporated.… Kaiduan Xie