[englishm]

That sounds like it was an interesting project! Jean-Baptiste Kempf also presented something at Demuxed last week using FEC and QUIC datagrams to get similarly low latency delivery over WebTransport into a browser. There's also a draft[1] for adding FEC to QUIC itself so it's quite possible Media over QUIC (MoQ) could benefit from this approach as well.

I'm not sure why you say "it is not." We have a working MoQ demo running already on https://quic.video that includes a Rust-based relay server and a TypeScript player. The BBB demo video is being ingested using a Rust-based CLI tool I wrote called moq-pub which takes fragmented MP4 input from ffmpeg and sends it to a MoQ relay.

You can also "go live" from your own browser if you'd like to test the latency and quality that way, too.

[1]: https://www.ietf.org/archive/id/draft-michel-quic-fec-01.htm...

[tamimio]

Thanks, it was a big project and streaming 4k in realtime from a flying drone was one of the challenging parts! I have some write up about it although nothing too technical but some videos there demonstrating some differences(1)

> I'm not sure why you say "it is not."

Pardon my ignorance it looked like it isn’t replacing WebRTC entirely yet, but glad I was wrong, I never tried anything QUIC for media related, would love to try the MoQ tool you did, and like the fact it’s rust based too as the one I did was written in rust. I will give it a test for sure, it’s been two years and I wasn’t following any updates so hopefully there’s an improvement compared what it was back then.

> takes fragmented MP4 input from ffmpeg and sends it to a MoQ relay.

Just a quick question, is ffmpeg a “requirement” per se for that CLI tool? As I remember I had to ditch ffmpeg in favor of gstreamer since the former one was eating up a lot of resources compared to Gstreamer, and it was crucial issue since the server was basically an SBC on a flying drone.

(1) https://tamim.io/professional_projects/nerds-heavy-lift-dron...

[englishm]

The current moq-pub implementation only requires valid fMP4 (a la CMAF) to be provided over stdin. I haven't tested, but I imagine you can do the same with gstreamer.

Separately, I've been working on a wrapper library for moq-rs that I've been calling 'libmoq'. The intent there is to provide a C FFI that non-Rust code can link against. The first integration target for libmoq is ffmpeg. (I have a few bugs to work out before I clean up and shout about that code, but it does mostly work already.)

I gave a presentation about some of this work last week at Demuxed, but the VoDs probably won't be available on YouTube until Decemberish.

Also, I understand the gstreamer project has better support for Rust so I'll be looking at that soon, too.

[oplav]

I believe gstreamer has support for fMP4: https://gstreamer.freedesktop.org/documentation/fmp4/index.h...

I stumbled upon a MoQ video by kixelated a couple months ago and have been meaning to give the above a try, but haven't gotten around to it yet so not sure if it will do the trick.

[tamimio]

Appreciated! Where do I find these presentations, if you don’t me asking?

[englishm]

https://2023.demuxed.com/ has the day-long uncut videos available behind a $20 "VoD-only" post-event "ticket" paywall.

Eventually https://www.youtube.com/@Demuxed will have the edited VoDs for Demuxed 2023 available for free. Usually those go up around December-ish.

I also posted my slides on LinkedIn: https://www.linkedin.com/feed/update/urn:li:activity:7124766...