Updates the local camera stream with the camera identified by the
deviceId argument. The
deviceId argument should match the
deviceId value returned by
This method has no effect if the
deviceId argument passed matches that of the camera already in use.
enumerateDevices() classifies the cameras'
facing value as being
setCamera() can be used to alternate between the mobile device's front or rear-facing cameras.
setCamera() returns a Promise that resolves with data about the camera device.
This method can only be invoked after the video is already unmuted.