import type * as types from './types/data';
/**
 * 前端视频编码
 * 用法：
 *
 * // 初始化实例
 * const me = new MovieEncoding({
 *   workerPath: '...worker.js', // 所用到的worker
 *   fps: 30, // 帧率
 *   movieData: ... // 视频的json数据
 *   resolution: '720p', // 分辨率
 *   times?: [], // 编码区间
 *   onReady: () => {}, // 准备ok
 *   onProgress: val => {}, // 编码进度 val: { type:'encoderAudio' | 'encoderVideo' | 'sourceLoad', progress: 0~1  }
 *   onFinish: () => {}, // 编码完成
 *   onError?: err => {}, // 错误
 * });
 *
 * // 开始执行，onReady之后执行
 * await me.run();
 *
 * // 销毁&终止
 * me.destroy();
 *
 * // 下载资源，需要在onFinish中执行
 * me.download();
 */
export interface ProgressParams {
    type: 'encoderAudio' | 'encoderVideo' | 'sourceLoad';
    progress: number;
}
export interface MovieEncodingParams {
    id?: string;
    workerPath?: string;
    fps: number;
    exportName?: string;
    EModuleEffectSourcePath?: string;
    resourceHost?: string;
    format?: 'mp3' | 'mp4';
    renderEnv?: 'web' | 'server';
    watermark?: types.IWatermark;
    showFrameIndex?: boolean;
    onShowSaveFilePicker?: () => void;
    disabledShowSaveFilePicker?: boolean;
    movieData: types.MovieData;
    plugins?: types.PluginConfig[];
    resolution: types.Resolution;
    onReady: () => void;
    initSuccess: () => void;
    getMaterialFileUrl?: (url: string) => Promise<string>;
    onProgress: (p: ProgressParams) => void;
    onEachSourceProgress?: (n: {
        src: string;
        p: number;
        total: number;
    }) => void;
    onFinish: (url: string) => void;
    onError?: (err: any) => void;
    times?: [number, number];
}
export interface FFmpegArgs {
    files: {
        name: string;
        data: Uint8Array;
    }[];
    arguments: string[];
}
export interface CacheFrame {
    data: Uint8Array;
    sample: {
        duration: number | null;
        timestamp: number;
        type: string;
    };
    meta: any;
}
export declare const loadFFmpeg: (baseURL?: string) => Promise<void>;
export declare class MovieEncoding {
    private _params;
    private _currentTime;
    private _root;
    private _movie;
    private _totalTime;
    private _endTime;
    private _startTime;
    private _muxer;
    private _bitrate;
    private _scale;
    private _encoder;
    private _drawFrameCount;
    private _stopDraw;
    private _remixAudioURL;
    private _hasEncoderAudio;
    private _streamTarget;
    private _frameOverlayStartedAt;
    constructor(params: MovieEncodingParams);
    private _onFinish;
    get remixAudioURL(): string;
    ffmpegRun(res: FFmpegArgs, type: 'video/mp4' | 'audio/mp3', onProgress?: (info: {
        ratio: number;
        time: number;
    }) => void): Promise<string>;
    fetchFile(url: String): Promise<Uint8Array>;
    fetchFileBuffer(url: String): Promise<ArrayBuffer>;
    downURL(url: string, name: string): void;
    getAllMedia(): any[];
    /**
     * 获取用户使用的所有资源文件
     * @returns
     */
    getUsedMedia(): any[];
    /**
     * 云端合成音频
     */
    encoderAudioFFmpegCMD(): "" | Promise<{
        files: {
            name: string;
            data: any;
        }[];
        arguments: string[];
        fileType: "audio/mp3";
    }>;
    encoderAudio(): Promise<string | null>;
    private encoderAudio2Video;
    private _fileStream;
    private _fileHandle;
    /**
     * 创建编码器
     */
    private _createMuxer;
    private getFormat;
    private _init;
    /**
     * 上报进度完成
     */
    private _emitProgressDone;
    /**
     * 将 file/buffer 转为 URL 并回调 onFinish
     */
    private _emitResult;
    private _runEnd;
    /** _runEnd 兜底：封装阶段的任何异常都必须走到 onError，
     *  否则会以 unhandled rejection 静默吞掉，前端永远停在「正在封装」（2026-10-17） */
    private _safeRunEnd;
    file2Buffer(): any;
    cache_color: string;
    private _getExportFrameCount;
    private _updateFrameOverlay;
    checkBlockColor: () => Promise<string>;
    /**
     * 执行动画
     */
    run(): Promise<void>;
    encoderPoster(): Promise<void>;
    /**
     * 销毁&终止
     */
    destroy(): void;
    /**
     * 开始下载资源
     */
    download(): void;
}