import type { ISceneLoaderProgressEvent } from "@babylonjs/core/Loading/sceneLoader";
import type { IFileRequest } from "@babylonjs/core/Misc/fileRequest";
import type { WebRequest } from "@babylonjs/core/Misc/webRequest";
import type { Scene } from "@babylonjs/core/scene";
import { MmdAnimation } from "../Animation/mmdAnimation";
/**
 * BvmdLoader is a loader that loads MMD animation data in BVMD format
 *
 * BVMD format is a optimized binary format for MMD animation data
 */
export declare class BvmdLoader {
    private readonly _scene;
    private _loggingEnabled;
    /** @internal */
    log: (message: string) => void;
    /** @internal */
    warn: (message: string) => void;
    /** @internal */
    error: (message: string) => void;
    /**
     * Create a new BvmdLoader
     * @param scene Scene for loading file
     */
    constructor(scene: Scene);
    private readonly _v300Int;
    private readonly _v310Int;
    /**
     * Load MMD animation data from BVMD array buffer
     * @param name Animation name
     * @param buffer BVMD array buffer
     * @returns Animation data
     * @throws {LoadFileError} when validation fails
     */
    loadFromBuffer(name: string, buffer: ArrayBufferLike): MmdAnimation;
    private _parseBoneTracks;
    private _parseMovableBoneTracks;
    private _parseMorphTracks;
    private _parsePropertyTrack;
    private _parseCameraTrack;
    /**
     * Load MMD animation data from BVMD file or URL
     * @param name Animation name
     * @param fileOrUrl BVMD file or URL
     * @param onLoad Callback function that is called when load is complete
     * @param onProgress Callback function that is called while loading
     * @param onError Callback function that is called when loading is failed
     * @returns File request
     */
    load(name: string, fileOrUrl: File | string, onLoad: (animation: MmdAnimation) => void, onProgress?: (event: ISceneLoaderProgressEvent) => void, onError?: ((request?: WebRequest | undefined, exception?: Error | undefined) => void) | undefined): IFileRequest;
    /**
     * Load MMD animation data from BVMD file or URL asynchronously
     * @param name Animation name
     * @param fileOrUrl BVMD file or URL
     * @param onProgress Callback function that is called while loading
     * @returns Animation data
     */
    loadAsync(name: string, fileOrUrl: File | string, onProgress?: (event: ISceneLoaderProgressEvent) => void): Promise<MmdAnimation>;
    /**
     * Enable or disable debug logging (default: false)
     */
    get loggingEnabled(): boolean;
    set loggingEnabled(value: boolean);
    private _logEnabled;
    private _logDisabled;
    private _warnEnabled;
    private _warnDisabled;
    private _errorEnabled;
    private _errorDisabled;
}