/// <reference types="node" />
/**
 * Stop all video recordings
 * @param {import('./internal').TaskConfig} config
 * @param {VideoRecorder[]} recorders
 */
export function stopAllRecordings(config: import('./internal').TaskConfig, recorders: VideoRecorder[]): Promise<void>;
export class VideoRecorder {
    /**
     * @param {string} ffmpegPath
     * @param {import('puppeteer').Page} page
     */
    constructor(ffmpegPath: string, page: import('puppeteer').Page);
    ffmpegPath: string;
    _process: import("child_process").ChildProcessWithoutNullStreams | null;
    _page: import("puppeteer").Page;
    /** @type {{ buffer: Buffer, timestamp: number } | null} */
    _lastFrame: {
        buffer: Buffer;
        timestamp: number;
    } | null;
    _fps: number;
    /** @type {Buffer[]} */
    _frameQueue: Buffer[];
    _hrtime: number;
    _writePromise: Promise<void>;
    _closePromise: Promise<void>;
    _stopped: boolean;
    outputFile: string | null;
    /**
     * @param {{ width: number, height: number, outputFile: string }} options
     */
    start(options: {
        width: number;
        height: number;
        outputFile: string;
    }): Promise<void>;
    _session: import("puppeteer").CDPSession | undefined;
    /**
     * @param {{ sessionId: number, data: string,  metadata: { offsetTop: number, pageScaleFactor: number, deviceWidth: number, deviceHeight: number, scrollOffsetX: number, scrollOffsetY: number, timestamp: number }}} frame
     */
    _onFrame(frame: {
        sessionId: number;
        data: string;
        metadata: {
            offsetTop: number;
            pageScaleFactor: number;
            deviceWidth: number;
            deviceHeight: number;
            scrollOffsetX: number;
            scrollOffsetY: number;
            timestamp: number;
        };
    }): Promise<void>;
    /**
     * Write files to buffer and fill time gaps by repeating the
     * last frame. This is necessary to satisfy the fps count.
     * @param {Buffer} buffer
     * @param {number} timestamp
     */
    _writeFrame(buffer: Buffer, timestamp: number): void;
    /**
     * Send queued frames over to ffmpeg
     */
    _sendFrames(): Promise<void>;
    stop(): Promise<void>;
}