import BaseSignaling from '../../abstract/BaseSignaling';
import EventEmitter from '../EventEmitter';
import { MediaSource } from '../MediaSource';
import { TransportState } from './Transport';
export default abstract class BaseTransport extends EventEmitter {
    protected readonly _signaling: BaseSignaling;
    protected readonly _mediaSource: MediaSource;
    protected _state: TransportState;
    protected _pc: RTCPeerConnection | null;
    protected constructor(signaling: BaseSignaling, mediaSource: MediaSource);
    getState(): TransportState;
    abstract close(error?: Error): void;
}