export declare function shouldSetLoadingOnSeeking(input: {
    isDraggingProgress: boolean;
    video?: HTMLVideoElement;
}): boolean;
export declare function shouldSetLoadingOnWaiting(input: {
    isSeeking: boolean;
    video?: HTMLVideoElement;
}): boolean;
export declare function syncPlayButtonState(playButton: HTMLElement, isPlaying: boolean): void;
export declare function syncCenterPlayVisibility(centerPlayButton: HTMLElement, visible: boolean): void;