Raja Subramanian 641858832a Address edge case stream allocation (#544)
* Handle an edge in layer lock.

A very edge case
- Available layer: [0, 1, 2], but bitrate is not yet available.
We set it to layer 2 awaiting measurement.
- Measurement for layers 0 and 1 come through.
- Still no key frame for layer 2.
- Finalize layers runs and sees that bitrate is available for 0 and 1.
It finalizes layer 1.
- Layer 1 key frame comes (because we asked key frame of layer 2,
publisher sends key frame for all layers). Locks to layer 1.
- No more events happen to switch to layer 2.

Changes
-------
- Move bit rate measurement to StreamTrackerManager. Allows re-use
in relay.
- Make bit rate availability (from zero -> non-zero) an event
and let it flow through the stream allocation flow so that we
always have an event when bit rate measurement becomes available.
This gets rid of finalization which I was unhappy with it anyway as
it was polling every second.
- Removing REMB stuff from buffer. We do not use it.
It is incorrect anyway. REMB should be ay peer connection level.

* Fix test

* fix test

* Simplify allocate

* Simplify/clean up
2022-03-21 14:53:31 +05:30
2022-02-28 14:48:19 -08:00
2022-02-24 14:57:14 -08:00
2022-02-27 16:55:48 -08:00
2021-08-30 11:35:03 -07:00
2022-01-17 23:54:04 -08:00
2022-03-21 14:34:13 +05:30
2022-03-21 14:34:13 +05:30
2021-06-03 23:22:19 -07:00

LiveKit - Open source, high performance WebRTC infrastructure

LiveKit is an open source project that provides scalable, multi-user conferencing over WebRTC. It's designed to give you everything you need to build real time video/audio/data capabilities in your applications.

LiveKit is written in Go, using the awesome Pion WebRTC implementation.

Features

  • Scalable, distributed WebRTC SFU (Selective Forwarding Unit)
  • Modern, full-featured client SDKs for JS, React, iOS, Android, Flutter, and Mac
  • Built for production - JWT authentication and server APIs
  • Robust networking & connectivity. UDP/TCP/TURN
  • Easy to deploy - single binary, docker & kubernetes
  • Advanced features - speaker detection, simulcast, selective subscription, moderation APIs, and webhooks.

Documentation & Guides

Docs & Guides at: https://docs.livekit.io

Try it live

Head to our playground and give it a spin. Build a Zoom-like conferencing app in under 100 lines of code!

SDKs & Tools

Client SDKs:

Server SDKs:

Tools:

Quickstart

Generate config file and keys

docker run --rm -v$PWD:/output livekit/generate --local

The above command generates a livekit.yaml you can use to start LiveKit. It'll contain an API key/secret pair you can use with your LiveKit install.

Starting with docker

docker run --rm -p 7880:7880 \
    -p 7881:7881 \
    -p 7882:7882/udp \
    -v $PWD/livekit.yaml:/livekit.yaml \
    livekit/livekit-server \
    --config /livekit.yaml \
    --node-ip <machine-ip>

When running with docker, --node-ip needs to be set to your machine's IP address. If the service will be exposed to the public Internet, this should the machine's public IP.

Test with example app

Head over to the example app and enter the generated token to connect to your LiveKit server. This app is built with our React SDK.

Once connected, your video and audio are now published to your new LiveKit instance!

Generating access tokens (JWT)

To add more users to a room, you'll have to create a token for each participant. Learn more about access tokens.

livekit-server provides a convenient sub-command to create a development token. This token has an expiration of a month, which is useful for development and testing, but not appropriate for production use.

docker run --rm -e LIVEKIT_KEYS="<api-key>: <api-secret>" \
    livekit/livekit-server create-join-token \
    --room "<room-name>" \
    --identity "<participant-identity>"

Deploying to server

Deployment Docs: https://docs.livekit.io/guides/deploy

Single node server

Use our deploy config generator to set up a single node deployment with automatic TLS termination and built-in TURN.

It includes a cloud-init/setup script that's supported by most cloud environments.

docker run --rm -it -v$PWD:/output livekit/generate

Kubernetes

We publish a helm chart that helps you to set up a cluster with high availability. For detailed instructions, see Kubernetes guide

Testing your deployment

Use the connection tester to ensure your installation is set-up properly for user traffic.

Building from source

Pre-requisites:

  • Go 1.15+ is installed
  • GOPATH/bin is in your PATH

Then run

git clone https://github.com/livekit/livekit-server
cd livekit-server
./bootstrap.sh
mage

Contributing

We welcome your contributions to make LiveKit better! Please join us on Slack to discuss your ideas and/or submit PRs.

License

LiveKit server is licensed under Apache License v2.0.

S
Description
Languages
Go 99.8%
Shell 0.1%