Optional
$destroyReadonly
activeReadonly
readyReadonly
sourceOptional
options: boolean | AddEventListenerOptionsOptional
options: boolean | AddEventListenerOptionsDispatches a synthetic event event to target and returns true if either event's cancelable attribute value is false or its preventDefault() method was not invoked, and false otherwise.
Optional
error: EndOfStreamErrorOptional
options: boolean | EventListenerOptionsOptional
options: boolean | EventListenerOptions
This Media Source Extensions API interface represents a source of media data for an HTMLMediaElement object. A MediaSource object can be attached to a HTMLMediaElement to be played in the user agent.
MDN Reference