Unfortunately, from time to time when making a one-on-one video call using react-native-webrtc one of the two video streams freezes or becomes black. Is there a way to detect when that happens programmatically? Thx in advance!
It looks like each video track has a listener that fires as soon as the stream freezes.
In react native it's the onmute listener:
stream.getVideoTracks().forEach(videoTrack => {
videoTrack.onmute = () => {
console.log("Frozen video stream detected!");
};
});
Note that in React Native detecting frozen streams with this method only seems to work for remote tracks!
To detect if a stream is currently frozen I use the muted property on the video track:
console.log(videoTrack.muted); // true when frozen
Another way I've found but haven't explored further is the getStats() method on the RTCPeerConnection. It returns a promise with a huge amount of data that can be used to detect frozen video streams and a lot more I suppose.