The setCameraActive() method of the MediaSession interface is used to indicate to the user agent whether the user's camera is considered to be active.
Call this method on the navigator object's mediaSession object.
Note that the status of the camera is not tracked in the MediaSession itself, but must be tracked separately.
setCameraActive(active)activeA boolean indicating whether the camera is considered active or not.
None (undefined).
Below is an example of updating the camera active state of the current MediaSession, as well as listening to requests to change the camera status with setActionHandler().
let cameraActive = false;
navigator.mediaSession.setCameraActive(cameraActive);
navigator.mediaSession.setActionHandler("togglecamera", () => {
cameraActive = !cameraActive;
navigator.mediaSession.setCameraActive(cameraActive);
});