import { DownloadProvider } from '../DownloadProvider.js';
import { DownloadConfig } from '../schema/DownloadConfig.js';
import { DownloadResult } from '../schema/DownloadResult.js';
import { VideoMetadata } from '../schema/VideoMetadata.js';
export interface YtDlpProviderOptions {
    outputDir?: string;
    cookiesPath?: string;
    /** Browser to get cookies from (safari, chrome, firefox, etc.) */
    cookiesFromBrowser?: string;
    /** Proxy URL for yt-dlp requests */
    proxyUrl?: string;
}
/**
 * yt-dlp based download provider.
 * Supports 1000+ video platforms.
 *
 * ## Environment Variables
 * - `YTDLP_COOKIES_FROM_BROWSER`: Browser to get cookies from (safari, chrome, firefox)
 * - `YTDLP_COOKIES_PATH`: Path to cookies.txt file
 * - `YTDLP_PROXY`: Proxy URL for requests
 */
export declare class YtDlpProvider extends DownloadProvider {
    readonly name = "yt-dlp";
    private outputDir;
    private optionsCookiesPath?;
    private optionsCookiesFromBrowser?;
    private optionsProxyUrl?;
    constructor(options?: YtDlpProviderOptions);
    /**
     * Get cookies path - checks options first, then env var (dynamic).
     */
    private get cookiesPath();
    /**
     * Get cookies from browser - checks options first, then env var (dynamic).
     */
    private get cookiesFromBrowser();
    /**
     * Get proxy URL - checks options first, then env var (dynamic).
     */
    private get proxyUrl();
    /**
     * Build cookies flag for yt-dlp commands.
     */
    private getCookiesFlag;
    /**
     * Build proxy flag for yt-dlp commands.
     */
    private getProxyFlag;
    download(url: string, config: DownloadConfig): Promise<DownloadResult>;
    extractMetadata(url: string): Promise<VideoMetadata>;
    /**
     * Get extractor-specific arguments to bypass restrictions.
     * For YouTube, tries multiple player clients to avoid bot detection.
     * Order matters: tries android first, then ios, then web as fallback.
     */
    private getExtractorArgs;
    isSupported(url: string): Promise<boolean>;
    private mapMetadata;
    private mapChapters;
    private buildDownloadArgs;
    private findDownloadedFiles;
}