Re: [rtcweb] Video codec selection - way forward
Gili <cowwoc@bbs.darktech.org> Tue, 19 November 2013 20:25 UTC
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Date: Tue, 19 Nov 2013 12:24:33 -0800
From: Gili <cowwoc@bbs.darktech.org>
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Subject: Re: [rtcweb] Video codec selection - way forward
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+1 On 19/11/2013 1:09 AM, Maik Merten wrote: > I'm sure the prospect of implementing H.261 is not a desirable one but > I wonder if > > - implementing the codec of "the other codec camp" is more desirable > - the end-users will appreciate spuriously failing video calls > > > Basically this boils down on what the question is. "Who enjoys > implementing H.261?" clearly will be answered as "nobody". However, > "who can live with the inconvenience of implementing H.261 for the > sake of interoperability and accessibility" may be answered differently. > > It would, of course, be preferable if H.261 can be substituted with a > higher performing alternative, although I guess the set of codecs with > a universally accepted status as "no worries regarding IPR or > licensing" is limited. > > > Maik > > > Am 19.11.2013 01:07, schrieb David Singer: >> It's an interesting idea, but the quality of H.261, the availability >> of decent implementations, and its (functional) restrictions may mean >> that people are very loath to spend (waste) engineering time on it. >> Is this a MUST that would, in fact, get respected? >> >> >> On Nov 17, 2013, at 11:54 , Maik Merten <maikmerten@googlemail.com> >> wrote: >> >>> Hello, >>> >>> just wondering if something like >>> >>> "9. All entities SHOULD support both H.264 and VP8. All entities >>> MUST at least implement one of those. Entities that do not support >>> both H.264 and VP8 MUST implement H.261." >>> >>> has already popped up. My reasoning is that implementations >>> supporting both high performance codecs will always negotiate to use >>> on of those - H.261 should never be relevant there. >>> >>> It appears that all implementors are willing to implement either >>> H.264 or VP8 (but not necessarily both). This obviously means that >>> negotiation failure regarding a high-performance codec is a >>> possiblity. In this case H.261 is actually useful so that basic >>> video calls can still be established (for instance, I guess deaf >>> people may always appreciate a video connection, as long as sign >>> language can be transmitted). >>> >>> >>> Maik >>> >>> >>> Am 14.11.2013 12:37, schrieb Jeremy Fuller: >>>> Hi, >>>> Gaining IETF consensus on making it mandatory to support only H.264 or >>>> only VP8 has clearly failed. I would welcome anyone to share their >>>> thoughts on why they believe this situation will change anytime in the >>>> next few years. Therefore, can I suggest that we remove items 1 and 2 >>>> from the list. Hopefully this will speed up the process by focusing >>>> efforts towards gaining agreement on one of the remaining options. >>>> The following alternatives has been proposed: >>>> >>>> 1. All entities MUST support H.264 >>>> 2. All entities MUST support VP8 >>>> 3. All entities MUST support both H.264 and VP8 >>>> 4. Browsers MUST support both H.264 and VP8, other entities MUST >>>> support at least one of H.264 and VP8 >>>> 5. All entities MUST support at least one of H.264 and VP8 >>>> 6. All entities MUST support H.261 >>>> 7. There is no MTI video codec >>>> 8. All entities MUST support H.261 and all entities MUST support at >>>> least one of H.264 and VP8 >>>> >>>> Regards, >>>> Jeremy Fuller >>>> >>>> >>>> _______________________________________________ >>>> rtcweb mailing list >>>> rtcweb@ietf.org >>>> https://www.ietf.org/mailman/listinfo/rtcweb >>>> >>> >>> _______________________________________________ >>> rtcweb mailing list >>> rtcweb@ietf.org >>> https://www.ietf.org/mailman/listinfo/rtcweb >> >> David Singer >> Multimedia and Software Standards, Apple Inc. >> > > _______________________________________________ > rtcweb mailing list > rtcweb@ietf.org > https://www.ietf.org/mailman/listinfo/rtcweb
- [rtcweb] Video codec selection - way forward Gonzalo Camarillo
- Re: [rtcweb] Video codec selection - way forward cowwoc
- Re: [rtcweb] Video codec selection - way forward Stephan Wenger
- Re: [rtcweb] Video codec selection - way forward Jonathan Rosenberg
- Re: [rtcweb] Video codec selection - way forward Bernard Aboba
- Re: [rtcweb] Video codec selection - way forward cb.list6
- Re: [rtcweb] Video codec selection - way forward Robin Raymond
- Re: [rtcweb] Video codec selection - way forward cowwoc
- Re: [rtcweb] Video codec selection - way forward cowwoc
- Re: [rtcweb] Video codec selection - way forward Gustavo Garcia
- Re: [rtcweb] Video codec selection - way forward Leon Geyser
- Re: [rtcweb] Video codec selection - way forward Gonzalo Camarillo
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward Leon Geyser
- Re: [rtcweb] Video codec selection - way forward Gonzalo Camarillo
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward Jeremy Fuller
- Re: [rtcweb] Video codec selection - way forward Jonathan Rosenberg
- Re: [rtcweb] Video codec selection - way forward Gili
- Re: [rtcweb] Video codec selection - way forward David Singer
- Re: [rtcweb] Video codec selection - way forward Bjoern Hoehrmann
- Re: [rtcweb] Video codec selection - way forward Leon Geyser
- Re: [rtcweb] Video codec selection - way forward Harald Alvestrand
- Re: [rtcweb] Video codec selection - way forward cowwoc
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward cowwoc
- Re: [rtcweb] Video codec selection - way forward Eric Rescorla
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward cowwoc
- Re: [rtcweb] Video codec selection - way forward cowwoc
- Re: [rtcweb] Video codec selection - way forward Eric Rescorla
- Re: [rtcweb] Video codec selection - way forward Basil Mohamed Gohar
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- Re: [rtcweb] Video codec selection - way forward Thomas Reisinger
- Re: [rtcweb] Video codec selection - way forward Basil Mohamed Gohar
- Re: [rtcweb] Video codec selection - way forward cowwoc
- Re: [rtcweb] Video codec selection - way forward Thomas Reisinger
- Re: [rtcweb] Video codec selection - way forward Ross Finlayson
- Re: [rtcweb] Video codec selection - way forward Leon Geyser
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- Re: [rtcweb] Video codec selection - way forward Thomas Reisinger
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- [rtcweb] H.263 licensing situation Stephan Wenger
- Re: [rtcweb] Video codec selection - way forward cowwoc
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- [rtcweb] Reference implementation of software cod… cowwoc
- Re: [rtcweb] Reference implementation of software… cowwoc
- Re: [rtcweb] Reference implementation of software… Maik Merten
- Re: [rtcweb] Video codec selection - way forward DRAGE, Keith (Keith)
- Re: [rtcweb] Video codec selection - way forward DRAGE, Keith (Keith)
- Re: [rtcweb] Video codec selection - way forward David Singer
- Re: [rtcweb] Video codec selection - way forward Bernard Aboba
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- Re: [rtcweb] Video codec selection - way forward Gili
- Re: [rtcweb] Video codec selection - way forward Bernard Aboba
- Re: [rtcweb] Video codec selection - way forward Gili
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- Re: [rtcweb] Video codec selection - way forward Bernard Aboba
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- Re: [rtcweb] Video codec selection - way forward David Singer
- Re: [rtcweb] Video codec selection - way forward Magnus Westerlund
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- Re: [rtcweb] Video codec selection - way forward Adam Roach
- Re: [rtcweb] Video codec selection - way forward David Singer
- Re: [rtcweb] Video codec selection - way forward Cullen Jennings
- Re: [rtcweb] Video codec selection - way forward David Singer
- Re: [rtcweb] Video codec selection - way forward Cullen Jennings
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- Re: [rtcweb] Video codec selection - way forward Maik Merten
- Re: [rtcweb] Video codec selection - way forward Leon Geyser
- Re: [rtcweb] Video codec selection - way forward Eric Rescorla
- Re: [rtcweb] Video codec selection - way forward Martin Thomson
- Re: [rtcweb] Video codec selection - way forward Steve Kann
- Re: [rtcweb] Video codec selection - way forward Eric Rescorla
- Re: [rtcweb] Video codec selection - way forward Monty Montgomery
- Re: [rtcweb] Video codec selection - way forward Matt Fredrickson
- Re: [rtcweb] Video codec selection - way forward Eric Rescorla
- Re: [rtcweb] Video codec selection - way forward Martin Thomson
- Re: [rtcweb] Video codec selection - way forward Enrico Marocco
- Re: [rtcweb] Video codec selection - way forward Cullen Jennings
- Re: [rtcweb] Video codec selection - way forward Matthew Kaufman
- [rtcweb] cisco binary on ec2 Cullen Jennings
- Re: [rtcweb] cisco binary on ec2 Matt Fredrickson
- Re: [rtcweb] cisco binary on ec2 Lorenzo Miniero
- Re: [rtcweb] Video codec selection - way forward cb.list6
- [rtcweb] H.264 CBP (was: Video codec selection - … cowwoc
- Re: [rtcweb] H.264 CBP (was: Video codec selectio… Eric Rescorla
- Re: [rtcweb] H.264 CBP (was: Video codec selectio… Stefan Slivinski
- Re: [rtcweb] cisco binary on ec2 Cullen Jennings
- Re: [rtcweb] cisco binary on ec2 cowwoc
- Re: [rtcweb] cisco binary on ec2 Roman Shpount