Re: [AVTCORE] Notes on RTP CC Feedback from the Hackathon
Jonathan Lennox <jonathan@vidyo.com> Tue, 26 March 2019 09:29 UTC
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From: Jonathan Lennox <jonathan@vidyo.com>
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Date: Tue, 26 Mar 2019 10:29:10 +0100
Cc: IETF AVTCore WG <avt@ietf.org>, "rmcat@ietf.org" <rmcat@ietf.org>
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To: Ingemar Johansson S <ingemar.s.johansson@ericsson.com>
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Subject: Re: [AVTCORE] Notes on RTP CC Feedback from the Hackathon
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> On Mar 26, 2019, at 10:15 AM, Ingemar Johansson S <ingemar.s.johansson@ericsson.com> wrote: > > >> >> The question here is about maintaining *local* data (internal to the sender’s >> data structures) remembering the a total order of the packets sent across all >> SSRCs, for congestion control algorithms that want to treat data sent as a single >> aggregate, rather than treating SSRCs independently. > [IJ] Ok, I guess that should be doable if you keep a list of transmitted packets and the time when they have been transmitted, already available in the SCReAM code but it would take some sorting to get the transmission order, not sure though what one can use this piece of information for ? If SCReAM doesn’t need this, that’s fine; it doesn’t need to maintain it. Other algorithms may need it, however. In particular, GCC wants packet sequence numbers (or at least the GCC API in libwebrtc does), which is where we ran into the issue.
- [AVTCORE] Notes on RTP CC Feedback from the Hacka… Jonathan Lennox
- Re: [AVTCORE] Notes on RTP CC Feedback from the H… Ingemar Johansson S
- Re: [AVTCORE] Notes on RTP CC Feedback from the H… Jonathan Lennox
- Re: [AVTCORE] Notes on RTP CC Feedback from the H… Ingemar Johansson S
- Re: [AVTCORE] Notes on RTP CC Feedback from the H… Jonathan Lennox
- Re: [AVTCORE] Notes on RTP CC Feedback from the H… Ingemar Johansson S