twilio-video/lib/webrtc/rtcrtpsender.js

Twilio Video JavaScript Library

'use strict';

/**
 * RTCRtpSender shim.
 * @param {MediaStreamTrack} track
 * @property {MediaStreamTrack} track
 */
class RTCRtpSenderShim {
  constructor(track) {
    Object.defineProperties(this, {
      track: {
        enumerable: true,
        value: track,
        writable: true
      }
    });
  }
}

// NOTE(mmalavalli): Because of the way we will be using this shim, there
// are a couple of use cases that will not be covered:
//
// /* Case 1 */
// const sender = pc.addTrack(track);
// assert.equal(sender.track, track);
// pc.removeTrack(sender);
// assert.equal(sender.track, null); /* Error */
//
// /* Case 2 */
// const sender = pc.addTrack(track);
// const senders1 = new Set(pc.getSenders());
// assert(senders1.has(sender));
// pc.removeTrack(track);
// const senders2 = new Set(pc.getSenders());
// assert(senders2.has(sender)); /* Error */
//
// For now, since we only use senders for passing them to RTCPeerConnection#removeTrack(),
// we will omit handling these use cases for now, and revisit them when we start
// using the RTCRtpSender APIs.

module.exports = RTCRtpSenderShim;