obs-rs

An OBS-style scene compositor, screen recorder and streamer, written in Rust on top of media-pp. Captures your desktop, composites it on the GPU, and records it or sends it to an RTMP service — with an annotation layer you can draw on while it runs. Windows, Linux and macOS.

• Scenes of sources on a 1920×1080 canvas, with transitions, crop, and a Scene placed inside another to share an overlay.
• Sources: display and window capture, webcams, media files, RTSP streams, web pages, images, text, colour and a layer you draw on.
• Recording to MP4, Matroska or HLS with hardware encoding, streaming to any RTMP service, a replay buffer and screenshots.
• Audio: a mixer with a channel per device, per media file and per application, filters on picture and sound, and monitoring.
• Hotkeys that work while another application has focus, undo and redo, a projector, and a workspace that remembers itself. English and Korean.

The whole list is in docs/features.md, and how to use it in docs/usage.md.

Each release carries an archive per platform with FFmpeg inside; unpack it and run what is in it. What each platform needs besides is in docs/install.md.

cargo run --release

Rust and FFmpeg 8.0 development headers, and on Windows and macOS CMake and Ninja for the browser engine — the details, per platform, are in docs/building.md.

AGENTS.md is the working guide for changing it.

Licensed under either the Apache License, Version 2.0 or the MIT License, at your option.

A released binary bundles FFmpeg's shared libraries, which are LGPL-2.1 and are built without GPL components. What that means, and where their source is, is in THIRD-PARTY.md. Building from source links against whatever FFmpeg your machine has, and none of it applies.