import { TypedEventEmitter } from '../utils/typed-event-emitter';
/**
 * This class handles video playlist management
 * - An video element, canvas and audio context which processes audio from video element is created
 *   in the constructor
 * It handles playback in the following steps
 *  - set's the url on the video element created in the constructor
 *  - oncanplaythrough event of the video element
 *    - resume the audio context if it is suspended
 *    - set width/height on canvas
 *    - captureStream on canvas element if not already captured
 *    - play the video element
 *    - on video element is played, it is drawn to canvas
 *    - Get audio track from the audio context manager
 *    - add audioTrack to canvas stream
 *    - The audio and video tracks are passed to playlist manager to publish
 */
export declare class PlaylistVideoManager extends TypedEventEmitter<{
    ended: null;
    progress: Event;
}> {
    private readonly TAG;
    private videoElement;
    private canvasContext;
    private canvas;
    private timer;
    private tracks;
    private audioContextManager;
    private DEFAUL_FPS;
    private seeked;
    play(url: string): Promise<MediaStreamTrack[]>;
    getTracks(): string[];
    getElement(): HTMLVideoElement;
    stop(): void;
    private clearCanvasAndTracks;
    private drawImage;
    private getVideoElement;
    private createCanvas;
}