How to update configuration when stream is running? about rtcmulticonnection HOT 2 CLOSED

It isn't yet possible to switch between resolutions without renegotiating peers. However Firefox team shown interest to bring this feature soon.

Chrome requires a separate MediaStream instance to be captured with NEW configurations, and then both peers need to be "renegotiated" to make sure new RTP ports are applied.

RTCMultiConnection is having following methods that auto-performs renegotiation:

1. addStream
2. removeStream
3. switchStream
4. renegotiate
5. drop
6. hold
7. etc.

var videoConstraints = {
    mandatory: {
        maxWidth: 1920,
        maxHeight: 1080
    },
    optional: []
};

connection.mediaConstraints = {
    video: videoConstraints,
    audio: true
};

// It'll capture a NEW stream with modified resolutions
// it'll also quickly renegotiate peers among all connected users
connection.addStream({
    video: true,
    audio: true
});

You can even remove/stop existing stream:

connection.streams.selectFirst({ local: true }).stop();

// or
connection.removeStream({ local: true });

// or
connection.streams.stop('local');

// or
connection.removeStream('stream-id');
connection.addStream({ audio: true, video: true });

attachExternalStream is useful only when doing initial handshake.

connection.refresh isn't meant to renegotiate peers. It merely sets defaults for local-peer-only. E.g. it can stop all streams, remove all connected peers, close all sockets etc.

from rtcmulticonnection.

@muaz-khan Thank you for your answer!

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