Re: [rtcweb] Video codec selection - way forward
cowwoc <cowwoc@bbs.darktech.org> Mon, 18 November 2013 16:48 UTC
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Subject: Re: [rtcweb] Video codec selection - way forward
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Looks good! I'd like to get a clarification which affects multiple options, but #10 most of all. Does the WG commit to providing reference implementations that supports VP8, H.264, H.261 with a commercially-friendly license? I am talking strictly about the software license, not the codec IPR. Meaning, libx264 requires a GPL license and ffmpeg requires either a LGPL or GPL license. I would argue that libx264 is a non-starter for commercial use on any platform (due to GPL) and ffmpeg is not usable under iOS (since LGPL + static linking is equivalent to GPL). It is my understanding that the current WebRTC reference implementation is published under the BSD license. I am asking for the final reference implementation (supporting these codecs) to be published under the same license. I'm not saying that anyone has to ship a reference implementation supporting all 3 codecs, but rather that the WG should publish a reference implementation demonstrating how it can be done and proving interoperability actually works as expected. Thanks, Gili On 18/11/2013 7:45 AM, Magnus Westerlund wrote: > WG, > > The current list of proposed alternative are the following one: > > 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. 5+6, i.e. All entities MUST support H.261 and all entities MUST > support at least one of H.264 and VP8 > 9. All entities MUST support Theora. > 10. 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. > > The deadline to propose additional alternatives are: 27th of November 2013 > > Cheers > > Magnus > > On 2013-11-13 21:23, Gonzalo Camarillo wrote: >> Folks, >> >> I hope everybody had a safe trip back home after Vancouver. >> >> As you all know, we need to make progress regarding the selection of the >> MTI video codec. The following are some of the alternatives we have on >> the table: >> >> 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 >> 5. All entities MUST support either H.264 or VP8 >> 6. All entities MUST support H.261 >> 7. There is no MTI video codec >> >> If you want the group to consider additional alternatives to the ones >> above, please let the group know within the following *two weeks*. At >> that point, the chairs will be listing all the received alternatives and >> proposing a process to select one among them. >> >> Please, send your proposals in an email to the list. You do not need to >> write a draft; just send the text you would like to see in the final >> document regarding video codecs. >> >> Thanks, >> >> Gonzalo >> Responsible AD for this WG >> >> _______________________________________________ >> 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