import type { ILiveRTMP } from '../interface/index';
import UpSpeed from './UpSpeed';
/**
 * responsibility
 * - 建立http连接、发包
 * - 上行速度统计，动态调整编码
 *
 * todo: 断网重连
 */
export default class Wtp {
    _core: ILiveRTMP;
    _queue: Array<Uint8Array>;
    _url: string;
    _connectClosed: boolean;
    _upSpeed: UpSpeed;
    _transport: any;
    _writer: WritableStreamDefaultWriter | null;
    _inWriting: boolean;
    _inAdjustEncode: boolean;
    _increaseTimer: number;
    _firstFramePushed: boolean;
    constructor(core: ILiveRTMP);
    get sendSpeed(): number;
    getStats(): any;
    _bindEvents(): void;
    _checkDecreaseBitrate(): void;
    _checkIncreaseBitrate(): void;
    _checkDeleteCache(key: boolean): void;
    start(url: string): Promise<void>;
    _connect(): Promise<void>;
    _write(): Promise<void>;
    getFile(): Uint8Array;
    destroy(): void;
}