junkai0531 / moq-rs

Rust library for Media over QUIC

Media over QUIC (MoQ) is a live media delivery protocol utilizing QUIC streams. See quic.video for more information.

This repository contains a few crates:

• moq-relay: A relay server, accepting content from publishers and fanning it out to subscribers.
• moq-pub: A publish client, accepting media from stdin (ex. via ffmpeg) and sending it to a remote server.
• moq-transport: An async implementation of the underlying MoQ protocol.
• moq-api: A HTTP API server that stores the origin for each broadcast, backed by redis.
• moq-clock: A dumb clock client/server just to prove MoQ is more than media.

There's currently no way to view media with this repo; you'll need to use moq-js for that.

Development

Launch a basic cluster, including provisioning certs and deploying root certificates:

make run

Then, visit https://quic.video/publish/?server=localhost:4443.

Alternatively, use the dev helper scripts.

Usage

moq-relay

moq-relay is a server that forwards subscriptions from publishers to subscribers, caching and deduplicating along the way. It's designed to be run in a datacenter, relaying media across multiple hops to deduplicate and improve QoS. The relays register themselves via the moq-api endpoints, which is used to discover other relays and share broadcasts.

Notable arguments:

• --listen <ADDR> Listen on this address, default: [::]:4443
• --tls-cert <CERT> Use the certificate file at this path
• --tls-key <KEY> Use the private key at this path
• --dev Listen via HTTPS as well, serving the /fingerprint of the self-signed certificate. (dev only)

This listens for WebTransport connections on UDP https://localhost:4443 by default. You need a client to connect to that address, to both publish and consume media.

moq-pub

This is a client that publishes a fMP4 stream from stdin over MoQ. This can be combined with ffmpeg (and other tools) to produce a live stream.

Notable arguments:

• <URL> connect to the given address, which must start with https:// for WebTransport.

NOTE: We're very particular about the fMP4 ingested. See this script for the required ffmpeg flags.

moq-transport

A media-agnostic library used by moq-relay and moq-pub to serve the underlying subscriptions. It has caching/deduplication built-in, so your application is oblivious to the number of connections under the hood.

See the published crate and documentation.

moq-api

This is a API server that exposes a REST API. It's used by relays to inserts themselves as origins when publishing, and to find the origin when subscribing. It's basically just a thin wrapper around redis that is only needed to run multiple relays in a (simple) cluster.

License

Licensed under either:

• Apache License, Version 2.0, (LICENSE-APACHE or http://www.apache.org/licenses/LICENSE-2.0)
• MIT license (LICENSE-MIT or http://opensource.org/licenses/MIT)