mediasoup

What it does

Client libraries

The project provides mediasoup-client, a JavaScript library, and libmediasoupclient, a C++ library, for browser and device applications.checked 5 Oct 2026

Codec constraint

mediasoup does not transcode, so peers in a room need to share a common subset of audio and video codecs.checked 5 Oct 2026

Deployment

The project describes itself as a low-level media-layer component intended for integration into applications, including group video chat, real-time broadcasting, and RTP streaming.checked 5 Oct 2026

Features

The site lists simulcast, SVC, and transport bandwidth estimation (BWE) among its features.checked 5 Oct 2026

Integrations

The site says mediasoup can be used with multimedia tools such as FFmpeg and GStreamer.checked 5 Oct 2026

License

The project is distributed under the ISC License, which permits use, copying, modification, and distribution with or without fee subject to the stated notice condition.checked 5 Oct 2026

Maintainers

The about page describes mediasoup as made by a small team and names Iñaki Baz Castillo and José Luis Millán as authors.checked 5 Oct 2026

Media handling

It receives audio and video streams from endpoints and relays them to other endpoints, which can select the streams and spatial or temporal layers they receive.checked 5 Oct 2026

Performance design

The SFU design does not transcode or mix media and is described as requiring fewer resources, with higher throughput and lower latency than a mixer.checked 5 Oct 2026

Product

mediasoup is a Selective Forwarding Unit (SFU) for building multi-party video conferencing and real-time streaming applications.checked 5 Oct 2026

Protocols

It supports WebRTC and plain RTP input and output, and leaves signaling protocol choices to the application developer.checked 5 Oct 2026

Purpose

mediasoup is a Selective Forwarding Unit for building multi-party video conferencing and real-time streaming applications.checked 5 Oct 2026

Security and warranty

The ISC license page states that the software is provided as-is and disclaims warranties and liability for damages.checked 5 Oct 2026

Server options

mediasoup can be used as a Node.js module or Rust crate and integrated into a larger application.checked 5 Oct 2026

Signaling

mediasoup does not provide a network signaling protocol; application developers build their own signaling mechanism.checked 5 Oct 2026

SIP limit

mediasoup does not implement SIP or audio mixing; connecting SIP or PSTN systems requires a client or gateway that handles those functions.checked 5 Oct 2026

SIP limitation

mediasoup does not implement SIP or audio mixing, and connecting SIP or PSTN systems requires a client or gateway to handle that separately.checked 5 Oct 2026

Support

The open-source project is supported on a best-effort basis; it directs questions to its Discourse group and bugs or feature requests to issue trackers.checked 5 Oct 2026

Transcoding limit

mediasoup does not transcode, so peers in a room need a common subset of audio and video codecs.checked 5 Oct 2026

Use cases

Listed use cases include group video chat, real-time one-to-many or few-to-many broadcasting, and RTP streaming.checked 5 Oct 2026