import { Debugger } from 'debug';
/**
 * Show debug logs with information received from
 * 'progress' & 'timeupdate' events including the current
 * up time, delay and end time of last buffer.
 * bufferedEnd: the last buffered time
 * currentTime: current playback time
 * delay: the last buffered time - current playback time
 */
export declare const useVideoDebug: (videoEl: HTMLVideoElement | null, debugLog: Debugger) => void;