import type { AdaptInboundAudioStatsPayload, AdaptInboundVideoStatsPayload, AdaptOutboundAudioStatsPayload, AdaptOutboundVideoStatsPayload, AudioStreamStats, VideoStreamStats } from './types';
export declare class WIDStatsAdapter {
    adaptInboundAudioStats(payload: AdaptInboundAudioStatsPayload): AudioStreamStats;
    adaptInboundVideoStats(payload: AdaptInboundVideoStatsPayload): VideoStreamStats;
    adaptOutboundAudioStats(payload: AdaptOutboundAudioStatsPayload): AudioStreamStats;
    adaptOutboundVideoStats(payload: AdaptOutboundVideoStatsPayload): VideoStreamStats;
    private calculateDeltaPacketLoss;
    private calculateDeltaAverageQP;
    private calculateJitterBufferDelay;
}