/**
 * Configuration options for video download.
 */
export interface DownloadConfig {
    /** Output directory for downloaded files */
    outputDir?: string;
    /** Preferred format (best, mp4, webm, etc.) */
    format?: string;
    /** Maximum quality (480, 720, 1080, 2160, or 'best') */
    quality?: string | number;
    /** Download only audio */
    audioOnly?: boolean;
    /** Include subtitles if available */
    includeSubtitles?: boolean;
    /** Preferred subtitle language */
    subtitleLang?: string;
    /** Timeout in seconds */
    timeout?: number;
    /** Rate limit (bytes per second) */
    rateLimit?: number;
    /** Custom yt-dlp arguments */
    extraArgs?: string[];
}
export declare const DEFAULT_DOWNLOAD_CONFIG: DownloadConfig;