import { OnCongestionCallback } from '../codec/Types';
import { SharingStatReport } from './SharingStatReport';
export default class ScreenCongestionControl {
    private readonly _onCongestion;
    private readonly _ccEnabled;
    private readonly _fastSharing;
    private readonly _trendDelayThreshold;
    private readonly _highDelayThreshold;
    private readonly _targetFps;
    private _minBitrate;
    private _maxBitrate;
    private _targetBitrate;
    private _lastDown;
    private _lastUp;
    private _lastProbing;
    private _lastCheckDelay;
    private _upPenalty;
    private _probing;
    private _delayAvgShort;
    private _delayAvgLong;
    private _minDelay;
    private _maxDelay;
    private _largeDelayDuration;
    private _lastFpsCalcMs;
    private _frames;
    private _fps;
    constructor(onCongestion: OnCongestionCallback, minBitrate: number, maxBitrate: number, ccEnabled: boolean, fastSharing: boolean, delayThreshold: number, targetFps: number);
    checkDelay(frameNum: number, delay: number, bitrateK: number): void;
    private _setBitrate;
    private _calcDelay;
    reconfigure(minBitrate: number, maxBitrate: number): void;
    getStat(): SharingStatReport | null;
    private _calcFps;
}