import { MetadataInfo } from '../metadata/metadata';
import { Cmd } from '../msg/cmd/cmd';
import { ImageFrame } from '../msg/image_frame/image_frame';
import { PcmFrame } from '../msg/pcm_frame/pcm_frame';
import { RTE } from '../rte/rte';
export declare abstract class Extension {
    constructor(name: string);
    static onInit: undefined | ((manifest: MetadataInfo, property: MetadataInfo) => void);
    static createInstance(name: string): Extension;
    static destroyInstance(_extension: Extension): void;
    private _onInit;
    private defaultOnInit;
    onInit(_rte: RTE, _manifest: MetadataInfo, properties: MetadataInfo): Promise<void>;
    private _onStart;
    onStart(_rte: RTE): Promise<void>;
    private _onStop;
    private defaultOnDeinit;
    onStop(_rte: RTE): Promise<void>;
    private _onCmd;
    onCmd(_rte: RTE, _cmd: Cmd): Promise<void>;
    private _onData;
    onData(_rte: RTE, _data: ArrayBuffer): Promise<void>;
    private _onImageFrame;
    onImageFrame(_rte: RTE, _frame: ImageFrame): Promise<void>;
    private _onPcmFrame;
    onPcmFrame(_rte: RTE, _frame: PcmFrame): Promise<void>;
    private dumpDirtyProp;
    name: string;
    addonFolder: string | undefined;
    private inittedByDefault;
}