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Real-Time Streaming Systems (WebRTC + Live Data) · Lesson

Adding and Removing Media Tracks

Learn to manage audio and video tracks within an `RTCPeerConnection`, enabling dynamic stream manipulation during a call.

Dynamic Media in WebRTC Calls

Imagine you're in a video call and want to mute your microphone or switch your camera. How does WebRTC handle these changes without dropping the call?

This lesson explores how to dynamically add and remove audio/video tracks from an active WebRTC peer connection. This is crucial for creating interactive and flexible real-time applications.

What is a MediaStreamTrack?

Before managing tracks, let's clarify what they are. A MediaStreamTrack represents a single audio or video component within a MediaStream.

  • Kind: Tracks have a kind property, either 'audio' or 'video'.
  • Enabled: The enabled property (boolean) lets you temporarily pause/unpause a track without removing it.

All lessons in this course

  1. Accessing User Media Devices
  2. Adding and Removing Media Tracks
  3. Displaying Remote Audio/Video
  4. Controlling Media Quality and Constraints
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