Re: [rtcweb] Proposed Video Selection Process
David Singer <singer@apple.com> Fri, 22 November 2013 01:23 UTC
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From: David Singer <singer@apple.com>
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Date: Thu, 21 Nov 2013 17:23:35 -0800
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To: Stefan Slivinski <sslivinski@lifesize.com>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Proposed Video Selection Process
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On Nov 21, 2013, at 17:15 , Stefan Slivinski <sslivinski@lifesize.com> wrote: > David your point is absolutely correct. H.261 would be completely unusable. The max resolution is 352x288 not to mention many other algorithm issues that make the quality even at low qp's unacceptable especially on a mobile device where the camera is anything but steady > > The fact that h.261 is getting so much attention is distressing Yes, that’s my gut. If we ask our engineers to implement it (I mean we in the sense of members of the WebRTC group) I am fairly sure that we will get a mix of “you want me to do WHAT?”, “are you insane?”, “what century are YOU from?”, and the like. Can someone remind me why classic H.263 (with possibly the minor tweaks for picture size limits etc.) is problematic? > > > ----- Original Message ----- > From: David Singer [mailto:singer@apple.com] > Sent: Thursday, November 21, 2013 06:57 PM > To: Martin Thomson <martin.thomson@gmail.com> > Cc: rtcweb@ietf.org <rtcweb@ietf.org> > Subject: Re: [rtcweb] Proposed Video Selection Process > > > On Nov 21, 2013, at 13:58 , Martin Thomson <martin.thomson@gmail.com> wrote: > >> On 21 November 2013 13:55, Basil Mohamed Gohar >> <basilgohar@librevideo.org> wrote: >>> It's no more crappy than having G.711 as a fallback audio codec for >>> legacy purposes, >> >> Actually, it is. G.711 is close to free to implement. And, despite >> it actually being crappy, there's still a lot of it around. > > well, it’s band-limited and hardly compressed, but within those limits it’s OK. Whereas I seem to recall having trouble getting decent quality out of H.261 no matter what I did with it (but it has been *years* since I used H.261 for anything, and it’s only because I am an old geezer that I used it at all). > > David Singer > Multimedia and Software Standards, Apple Inc. > > _______________________________________________ > rtcweb mailing list > rtcweb@ietf.org > https://www.ietf.org/mailman/listinfo/rtcweb David Singer Multimedia and Software Standards, Apple Inc.
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- [rtcweb] Proposed Video Selection Process Magnus Westerlund
- Re: [rtcweb] Proposed Video Selection Process Bjoern Hoehrmann
- Re: [rtcweb] Proposed Video Selection Process Peter Dunkley
- Re: [rtcweb] Proposed Video Selection Process Cullen Jennings
- Re: [rtcweb] Proposed Video Selection Process Cullen Jennings
- Re: [rtcweb] Proposed Video Selection Process Jeremy Laurenson (jlaurens)
- Re: [rtcweb] Proposed Video Selection Process Bjoern Hoehrmann
- Re: [rtcweb] Proposed Video Selection Process Peter Dunkley
- Re: [rtcweb] Proposed Video Selection Process Peter Saint-Andre
- Re: [rtcweb] Proposed Video Selection Process Peter Saint-Andre
- Re: [rtcweb] Proposed Video Selection Process Justin Uberti
- Re: [rtcweb] Proposed Video Selection Process Adam Roach
- [rtcweb] Voting method choice (Re: Proposed Video… Harald Alvestrand
- Re: [rtcweb] Proposed Video Selection Process Adam Roach
- Re: [rtcweb] Proposed Video Selection Process Philipp Hancke
- Re: [rtcweb] Voting method choice (Re: Proposed V… Eric Rescorla
- Re: [rtcweb] Proposed Video Selection Process Cullen Jennings
- Re: [rtcweb] Proposed Video Selection Process Peter Dunkley
- Re: [rtcweb] Proposed Video Selection Process David Singer
- Re: [rtcweb] Proposed Video Selection Process Justin Uberti
- Re: [rtcweb] Voting method choice (Re: Proposed V… Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Silvia Pfeiffer
- Re: [rtcweb] Proposed Video Selection Process Peter Dunkley
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Lorenzo Miniero
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process John Leslie
- Re: [rtcweb] Proposed Video Selection Process Leon Geyser
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Matt Fredrickson
- Re: [rtcweb] Proposed Video Selection Process Maik Merten
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Justin Uberti
- Re: [rtcweb] Proposed Video Selection Process Randell Jesup
- Re: [rtcweb] Proposed Video Selection Process Ron
- Re: [rtcweb] Proposed Video Selection Process Daniel-Constantin Mierla
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Maik Merten
- Re: [rtcweb] Proposed Video Selection Process Martin Thomson
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Maik Merten
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Eric Rescorla
- Re: [rtcweb] Proposed Video Selection Process Enrico Marocco
- Re: [rtcweb] Proposed Video Selection Process Emil Ivov
- Re: [rtcweb] Proposed Video Selection Process Leon Geyser
- Re: [rtcweb] Proposed Video Selection Process Ron
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Martin Thomson
- Re: [rtcweb] Proposed Video Selection Process Bjoern Hoehrmann
- Re: [rtcweb] Proposed Video Selection Process Eric Rescorla
- Re: [rtcweb] Proposed Video Selection Process Markus.Isomaki
- Re: [rtcweb] Proposed Video Selection Process Eric Rescorla
- Re: [rtcweb] Proposed Video Selection Process Leon Geyser
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Cullen Jennings
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Martin Thomson
- Re: [rtcweb] Proposed Video Selection Process Eric Rescorla
- Re: [rtcweb] Proposed Video Selection Process Eric Rescorla
- Re: [rtcweb] Proposed Video Selection Process Martin Thomson
- Re: [rtcweb] Proposed Video Selection Process Matt Fredrickson
- Re: [rtcweb] Proposed Video Selection Process Martin Thomson
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Martin Thomson
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Cullen Jennings
- Re: [rtcweb] Proposed Video Selection Process Justin Uberti
- Re: [rtcweb] Proposed Video Selection Process Cullen Jennings
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Jack Moffitt
- Re: [rtcweb] Proposed Video Selection Process Ron
- Re: [rtcweb] Proposed Video Selection Process Bjoern Hoehrmann
- Re: [rtcweb] Proposed Video Selection Process Martin Thomson
- Re: [rtcweb] Proposed Video Selection Process Lorenzo Miniero
- Re: [rtcweb] Proposed Video Selection Process Matt Fredrickson
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Cullen Jennings
- Re: [rtcweb] Proposed Video Selection Process David Singer
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process David Singer
- Re: [rtcweb] Proposed Video Selection Process David Singer
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Justin Uberti
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Mo Zanaty (mzanaty)
- Re: [rtcweb] Proposed Video Selection Process Maik Merten
- Re: [rtcweb] Proposed Video Selection Process Martin J. Dürst
- Re: [rtcweb] Proposed Video Selection Process Martin J. Dürst
- Re: [rtcweb] Proposed Video Selection Process Steve Donovan
- Re: [rtcweb] Proposed Video Selection Process John Leslie
- Re: [rtcweb] Proposed Video Selection Process Bjoern Hoehrmann
- Re: [rtcweb] Proposed Video Selection Process Emil Ivov
- Re: [rtcweb] Proposed Video Selection Process Basil Mohamed Gohar
- Re: [rtcweb] Proposed Video Selection Process Steve Donovan
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Emil Ivov
- Re: [rtcweb] Proposed Video Selection Process Silvia Pfeiffer
- Re: [rtcweb] Proposed Video Selection Process Ashish V. Thapliyal
- Re: [rtcweb] Proposed Video Selection Process tim panton
- Re: [rtcweb] Proposed Video Selection Process bryandonnovan
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Justin Uberti
- Re: [rtcweb] Proposed Video Selection Process Roman Shpount
- Re: [rtcweb] Proposed Video Selection Process Martin Thomson
- Re: [rtcweb] Proposed Video Selection Process Martin Thomson
- Re: [rtcweb] Proposed Video Selection Process Maik Merten
- Re: [rtcweb] Proposed Video Selection Process Matt Fredrickson
- Re: [rtcweb] Proposed Video Selection Process Paul Giralt
- Re: [rtcweb] Proposed Video Selection Process David Singer
- Re: [rtcweb] Voting method choice (Re: Proposed V… Harald Alvestrand
- Re: [rtcweb] Proposed Video Selection Process Maik Merten
- Re: [rtcweb] Proposed Video Selection Process DRAGE, Keith (Keith)
- Re: [rtcweb] Proposed Video Selection Process DRAGE, Keith (Keith)
- Re: [rtcweb] Proposed Video Selection Process Adam Roach
- [rtcweb] IETF will fail to implement Video codec … Parthasarathi R
- Re: [rtcweb] Proposed Video Selection Process Stefan Slivinski
- Re: [rtcweb] Proposed Video Selection Process Bernard Aboba
- Re: [rtcweb] Proposed Video Selection Process cowwoc
- Re: [rtcweb] Proposed Video Selection Process Maik Merten
- Re: [rtcweb] Proposed Video Selection Process Martin J. Dürst
- Re: [rtcweb] Proposed Video Selection Process Emil Ivov
- Re: [rtcweb] Proposed Video Selection Process Marc Abrams
- Re: [rtcweb] Voting method choice (Re: Proposed V… Parthasarathi R
- Re: [rtcweb] IETF will fail to implement Video co… Parthasarathi R
- Re: [rtcweb] Voting method choice (Re: Proposed V… Harald Alvestrand
- Re: [rtcweb] Proposed Video Selection Process Magnus Westerlund
- Re: [rtcweb] Voting method choice (Re: Proposed V… Parthasarathi R
- Re: [rtcweb] Voting method choice (Re: Proposed V… Parthasarathi R
- Re: [rtcweb] Proposed Video Selection Process Cullen Jennings (fluffy)
- Re: [rtcweb] Proposed Video Selection Process Stephan Wenger
- Re: [rtcweb] Proposed Video Selection Process Cullen Jennings (fluffy)