type HistoryRecord = {
    seq: number;
    ts: number;
    size: number;
    sent: number;
    start: boolean;
    end: boolean;
    ts2: number;
    recv: number;
};
/**
 * Class calculates server bitrate and delay, based on server cc feedback
 * Ring buffer to keep sent packets info (HistoryRecord)
 * Packet info is updated when cc feedback is received from server
 */
export default class PacketHistory {
    private readonly _maxSize;
    private _size;
    private readonly _buffer;
    private _head;
    private _tail;
    constructor(maxSize: number);
    add(seq: number, ts: number, size: number, start: boolean, end: boolean): number;
    update(seq: number, ts2: number): HistoryRecord | null;
    get(seq: number): HistoryRecord | null;
    getServerBitrateK(windowMs: number): number;
    getCurrentDelay(): number;
    getMaxBandwidth(): number;
    clear(): void;
}
export {};