| setupParams | The various settings that should be applied to the web camera. |
| audioState | Indicates how audio should be recorded. |
| onVideoModeStartedCallback | This callback will be invoked once video mode has been activated. |
Asynchronously starts video mode.
Activates the web camera with the various settings specified in CameraParameters. Only one VideoCapture instance can start the video mode at any given time. After starting the video mode, you make record videos via VideoCapture.StartRecordingAsync. While in video mode, more power will be consumed so make sure that you call VideoCapture.StopVideoModeAsync when you are recording.