import { Page } from 'puppeteer';
/**
 * PuppeteerScreenRecorder class is responsible for managing the video
 *
 * ```typescript
 * const screenRecorderOptions = {
 *  followNewTab: true,
 *  fps: 25,
 * }
 * const savePath = "./test/demo.webm";
 * const screenRecorder = new PuppeteerScreenRecorder(page, screenRecorderOptions);
 * await screenRecorder.start(savePath);
 *  // some puppeteer action or test
 * await screenRecorder.stop()
 * ```
 */
export declare class PuppeteerScreenRecorder {
    private page;
    private readonly options;
    private cdpScreencastRecorder;
    private ffmpegStreamWriter;
    private isScreencastEnded;
    constructor(page: Page, options?: {});
    get isReadyToAdvanceFrame(): boolean;
    set isReadyToAdvanceFrame(newValue: boolean);
    /**
     * @ignore
     */
    private setupListeners;
    /**
     * @ignore
     */
    private ensureDirectoryExists;
    /**
     * @public
     * @method getRecordDuration
     * @description return the total duration of the video recorded,
     *  1. if this method is called before calling the stop method, it would be return the time till it has recorded.
     *  2. if this method is called after stop method, it would give the total time for recording
     * @returns total duration of video
     */
    getRecordDuration(): string;
    /**
     *
     * @public
     * @method start
     * @param savePath accepts a path string to store the video
     * @description Start the video capturing session
     * @returns PuppeteerScreenRecorder
     * @example
     * ```
     *  const savePath = './test/demo.webm'; //.webm is required
     *  await recorder.start(savePath);
     * ```
     */
    start(savePath: string): Promise<PuppeteerScreenRecorder>;
    /**
     * @public
     * @method stop
     * @description stop the video capturing session
     * @returns indicate whether stop is completed correctly or not, true if without any error, else false.
     */
    stop(): Promise<boolean>;
}