import type { Language, MediaInfo, YtDlpOptionals } from "./types.js";
export type YtDlpConfig = {
    workdir: string;
    cookies?: string;
};
export declare class YtDlp {
    readonly config: YtDlpConfig;
    readonly filename: string;
    readonly binaryPath: string;
    constructor(config: YtDlpConfig);
    /**
     * Downloads the latest release of yt-dlp from GitHub
     */
    downloadLatestReleaseIfNotExists(): Promise<void>;
    /**
     * Returns multiple {@link MediaInfo} objects if contains multiple videos
     */
    retrieveMediaInfoList(url: string): Promise<MediaInfo[]>;
    exec(optionals: YtDlpOptionals & {
        url: string;
    }): Promise<{
        stdout: string;
        stderr: string;
    }>;
    downloadAudio(params: {
        url: string;
    } & YtDlpOptionals): Promise<string[]>;
    download(params: {
        url: string;
    } & YtDlpOptionals): Promise<string[]>;
    retrieveMediaInfoFromSource(source: MediaSource): Promise<MediaInfo[]>;
    /**
     * Downloads the subtitle file of a video
     */
    downloadSubtitle(params: {
        info: MediaInfo;
        lang?: Language;
    }): Promise<string>;
    /**
     * Downloads the subtitle file of a video without using yt-dlp
     */
    downloadSubtitleWithoutYtDlp(params: {
        info: MediaInfo;
        lang?: Language;
    }): Promise<string | undefined>;
    /**
     * Extracts the text from a `json3`, `vtt` or `srt` subtitle file
     */
    extractTextFromSubtitles(subtitlePath: string): string;
    /**
     * Downloads and extracts the text from a subtitle file
     * - If `source` is a video URL, retrieves the {@link MediaInfo} from the video URL
     */
    downloadSubtitleText(params: {
        info: MediaInfo;
        lang?: Language;
    }): Promise<string | undefined>;
}