srcObject

The srcObject property of the HTMLMediaElement interface represents the media stream that is currently assigned to the element. This media stream can be a local stream obtained from a user's camera and microphone, or a remote stream received from a network connection, such as during a video call.

When a MediaStream object is assigned to srcObject, the media element begins to play the audio and/or video contained within that stream. For instance, in a web application that utilizes the WebRTC API, a local MediaStream captured from a user's device can be assigned to a video element's srcObject to display a preview of what the user is sending. Similarly, a remote MediaStream received from another participant in a call can be assigned to a video element to display their video feed.

The srcObject property can also be set to null. Setting it to null effectively stops the playback of any currently assigned media stream and clears the source. This is useful for scenarios where the media element should no longer display any content, such as when a user ends a video call or navigates away from a page that was displaying live media.

Accessing srcObject returns the MediaStream object currently associated with the media element. If no stream is assigned, it returns null. This property plays a crucial role in handling real-time audio and video within web browsers, enabling a wide range of interactive multimedia applications.