Re: [Moq] Agenda topics for side meeting on Tuesday

[Spencer Dawkins at IETF <[e-mail]>]

Hi, Luke,

On Mon, Nov 8, 2021 at 4:17 PM Luke Curley <[e-mail]> wrote:

> Twitch is using WebTransport and QUIC streams for live video distribution
> (Warp). I gave a presentation at Demuxed about it recently (including
> plugging this ML) and would love to start the conversation here too. I've
> got a draft and I'm just working on getting approval to publish it now.
>

Excellent!


> I don't think there's a good way to map RTP to QUIC. It's tempting because
> there's a lot of standards behind RTP, but any approach involves disabling
> huge swaths of functionality on either front. QUIC and RTP have
> incompatible ideas on how to perform fragmentation, congestion control,
> flow control, reliability, feedback, etc. My project briefly used RTP over
> QUIC but we abandoned it when it became too cumbersome.
>

Understood.


> There are some compelling ways to map live media to QUIC and fully
> utilizing QUIC's functionality. For example, sending each frame as its own
> stream, which is how Facebook's RUSH works. I think we have enough
> non-video people on this list that we should discuss how video works and
> what we're trying to accomplish, instead of focusing on how we can port RTP.
>

I'm trying not to prejudge where "Media Over QUIC" is headed, but I suspect
there may be more than one "we" in these discussions, bound by more than
one set of constraints.

But let's see who is trying to do what, more clearly, and then see where
that takes us.

Best,

Spencer