Re: [rtcweb] Proposed Video Selection Process
Stefan Slivinski <sslivinski@lifesize.com> Thu, 21 November 2013 20:06 UTC
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From: Stefan Slivinski <sslivinski@lifesize.com>
To: "'rtcweb@ietf.org'" <rtcweb@ietf.org>
Date: Thu, 21 Nov 2013 14:02:37 -0600
Thread-Topic: [rtcweb] Proposed Video Selection Process
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Subject: Re: [rtcweb] Proposed Video Selection Process
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I in no way intended to suggest a specific implementation of a video codec. My question was around whether we are voting on requiring decoders (my assumption) or both encoders and decoders ----- Original Message ----- From: Basil Mohamed Gohar [mailto:basilgohar@librevideo.org] Sent: Thursday, November 21, 2013 01:56 PM To: rtcweb@ietf.org <rtcweb@ietf.org> Subject: Re: [rtcweb] Proposed Video Selection Process On 11/21/2013 02:31 PM, Stefan Slivinski wrote: > I'm a new comer, so just a brief intro: I have a background developing real time video codecs for embedded devices so I'm in a position to comment at a technical level within this group > > For clarity purposes the proposed alternatives in Magnus' email on nov 18th; are we strictly speaking about decoders? Historically mandatory requirements are they relate to video compatibility define just the decoders. Obviously if there is only a single mandatory video decoder this implies a mandatory encoder, however in the case where there are 2 mandatory decoders only a single encoder is technically required. > > Clarifying this is fairly important because in the case of both h264 and vp8 (and in the future vp9 and h265) the decoder complexity is fairly low and hardware acceleration is not critical but in the case of the encoders where the complexity can be 3x or worse, hardware acceleration becomes increasingly important > > Stefan What is being specified as MTI is a format, and not a specific implementation. So, MTI will not take the form of "OpenH264" or "libvpx", but rather, "H.264 Constrainted Baseline Profile" or "VP8". The same was done for the MTI audio codec, which is Opus, not *libopus*, which is one specific implementation of the codec. There was a suggestion that the WG also offer a reference implementation of the MTI codec choice, but that seems like it won't happen, nor is it really the purpose of the WG to do so. We are picking from already-existing and implemented formats in the first place. -- Libre Video http://librevideo.org _______________________________________________ rtcweb mailing list rtcweb@ietf.org https://www.ietf.org/mailman/listinfo/rtcweb
- 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)