import { SendHandler, RecvHandler } from "./Handler";
import { RtpCapabilities } from "../../types";
import { TaskQueue } from "../../TaskQueue";
import EnhancedEventEmitter from "../../EnhancedEventEmitter";
import Consumer from "./Consumer";
import { SignalingWS } from "../ws";
import { Track } from "../stream/track";
import { PCTrack } from "../stream/pctrack";
export declare class ConnectionTransport extends EnhancedEventEmitter {
    extendedRtpCapabilities: RtpCapabilities;
    sendHandler: SendHandler;
    recvHandler: RecvHandler;
    sendCommandQueue: TaskQueue;
    recvCommandQueue: TaskQueue;
    simulcast: boolean;
    /**
     * sub-pc 创建单独走一个 queue
     */
    recvInitCommandQueue: TaskQueue;
    sendTrackQueue: MediaStreamTrack[];
    consumerQueue: Consumer[];
    private signaling;
    private _publishTracks;
    private initSubPcPromise;
    private initSubPcPromiseResolve?;
    readonly publishTracks: PCTrack[];
    constructor(rtpcap: RtpCapabilities, signaling: SignalingWS, simulcast?: boolean);
    resolveInitSubPcPromise(): void;
    private handleSendHandler;
    sendTracks(tracks: PCTrack[]): Promise<any>;
    removeTracks(tracks: PCTrack[]): Promise<any>;
    restartSendICE(pcid: string): Promise<any>;
    private handleSendCommandTask;
    /**
     * 将 Track 添加到 transport 的 PCTrack 列表中
     * 将这一步抽成同步方法是为了保证多个 publish 操作同时触发时
     * 上层能够正确监测到非法订阅操作并及时抛出错误
     */
    addTrackToPublishTracks(tracks: Track[]): PCTrack[];
    /**
     * 当发布任务遇到无法重试的失败时清理添加的 Tracks
     */
    removeTrackFromPublishTracks(tracks: Track[]): void;
    private _execAddProducerTracks;
    private _execRemoveTracks;
    private _execRestartSendICE;
    reconnectProducer(): void;
    private handleRecvHandler;
    appendConsumer(consumer: Consumer): void;
    addConsumers(): Promise<MediaStreamTrack[]>;
    initRecvHandler(trackIds: string[]): Promise<any>;
    removeConsumers(consumers: Consumer[]): Promise<void>;
    restartRecvICE(pcid: string): Promise<any>;
    private _removeConsumers;
    private _initRecvHandler;
    private _addConsumers;
    private _execRestartRecvICE;
    private handleRecvCommandTask;
    private handleRecvInitCommandTask;
    resetSendCommandQueue(): void;
    resetRecvCommandQueue(): void;
    resetRecvHandler(): void;
    release(): void;
}