Description

This project demonstrates how to use the nodejs module wrtc to covert a WebRTC live capture from a browser to an RTSP stream.

This work is based on node-webrtc/node-webrtc-examples (record-audio-video-stream).

Setup

npm install
npm run build

This project does not require any external system-wide dependencies.

Demo

Run the rtsp server

node ./build/rtsp/rtsp.js

Run the webrtc server

node ./build/server/server.js

Frontend

Navigate to http://127.0.0.1:8080 Then click startRecord. An id will be allocated.

Playback

Get a rtsp player and use this URL:

rtsp://127.0.0.1:6554/${id}

For ffplay, the command should be:

ffplay rtsp://127.0.0.1:6554/${id}

Troubleshooting

Framerate incorrect

This is a weird bug and I don't know how to solve it ultimately.

frameRate = 29.97              => everything ok
frameRate = 29.97002983093261  => everything ok
frameRate = 29.970029830932614 => everything ok
frameRate = 29.970029830932617 => real fps received at server = ~60

The workaround however is simple: fix frameRate to 29.97 or whatever else working value on both browser and server.