# Open Live

> Open Live is a cloud-native live broadcast production platform. It delivers a complete browser-based production suite, vision mixing, audio mixing, multiviewer, camera ingest, and GPU rendering, deployable in minutes and on a predictable monthly plan with metered token usage inside it.

## What it is

Open Live is an open-source live broadcast production system that runs in the browser and deploys on Kubernetes. Production teams sign in, create an environment, and start producing live shows without managing infrastructure. It is built on open standards so signals and tooling interoperate with the wider broadcast ecosystem.

## Key features

- **Vision Mixer**: Browser-based video switching with transitions, keying, and live program/preview workflow.
- **Audio Console**: Multi-channel audio mixing with EBU R128 loudness normalisation for broadcast-compliant levels.
- **Multiviewer**: Sub-500ms multi-source monitoring over WebRTC for low-latency confidence viewing.
- **Camera Ingest**: Contribution feeds over EFP and SRT for reliable field and studio camera input.
- **GPU Rendering**: Hardware-accelerated compositing and rendering for graphics and effects.

## Open standards

Open Live is built on open protocols and interfaces:

- **WebRTC** for sub-500ms low-latency monitoring and viewing.
- **SRT** for secure, reliable contribution and transport.
- **EFP** for camera and contribution ingest.
- **Stream Deck** for tactile hardware control of the production surface.

## Pricing model

- **Self-hosted**: Free and open source. Run it yourself on your own infrastructure.
- **Managed cloud**: Fully managed on Open Source Cloud (OSC). No infrastructure to manage; a predictable monthly plan with metered token usage inside it.

## Links

- Product: https://openlive.apps.osaas.io
- Source code: https://github.com/Eyevinn/open-live
- Open Source Cloud (OSC): https://www.osaas.io

## Technical Specifications
- Real-time 4K video mixing on commodity GPU via NVENC hardware encoding
- Zero-copy GPU pipeline: decode, composite, encode in one pass
- Up to 32 audio input channels
- Sub-500ms browser multiview latency over WHEP on local network
- Supported inputs: MPEG-TS/SRT, NDI, AES67/Ravenna, Blackmagic DeckLink SDI, EFP/SRT
- Protocol support: WHIP ingress, WHEP egress
- Built on Strom (Rust + GStreamer)
- Open source: MIT license (open-live), Apache-2.0 (strom)