type MediaCallbacks = {
    onPlay: () => void;
    onPause: () => void;
    onStop: (inRespectToNewlyActivatedVideo: boolean) => void;
    onToggle?: () => void;
    onSeek?: (time: number) => void;
    onVolumeChange?: (volume: number) => void;
    onMute?: () => void;
    onUnmute?: () => void;
};
declare class PlaybackManagerInstance {
    private _mountedPlayableComponents;
    private _playingComponentId;
    registerMountedPlayer: (componentId: string, callbacks: MediaCallbacks) => void;
    unregisterPlayer: (componentId: string) => void;
    setPlayingComponent: (componentId: string | null) => void;
    play: (componentId: string | null) => void;
    pause: (componentId?: string) => void;
    stop: (componentId: string) => void;
    toggle: (componentId: string) => void;
    /** Dispatch a seek to a specific registered player by id. No-op when the id isn't mounted. */
    seek: (id: string, time: number) => void;
    setVolume: (componentId: string, volume: number) => void;
    mute: (componentId: string) => void;
    unmute: (componentId: string) => void;
}
export declare const PlaybackManager: PlaybackManagerInstance;
export {};