release method
void
release()
Implementation
void release() {
_cancel();
player = null;
stereoPanner = null;
playerLoadedDataSubscription?.cancel();
playerLoadedDataSubscription = null;
playerTimeUpdateSubscription?.cancel();
playerTimeUpdateSubscription = null;
playerEndedSubscription?.cancel();
playerEndedSubscription = null;
playerSeekedSubscription?.cancel();
playerSeekedSubscription = null;
playerPlaySubscription?.cancel();
playerPlaySubscription = null;
}