import { WebRTCStats } from 'src/util/webrtc';
export interface BitrateLevel {
    level: ConnectionQualityLevel;
    reportId: string | null;
    report: RTCOutboundRTPStreamReport | RTCInboundRTPStreamReport | null;
}
export interface RTCOutboundRTPStreamReport {
    timestamp: number;
    bytesSent: number;
    id: string;
}
export interface RTCInboundRTPStreamReport {
    timestamp: number;
    bytesReceived: number;
    id: string;
}
export declare enum ConnectionQualityLevel {
    excellent_network = 5,
    good_network = 4,
    average_network = 3,
    below_average_network = 2,
    bad_network = 1,
    network_broken = 0
}
export declare function getVideoConnectionQualityLevel(bitrate: number): ConnectionQualityLevel;
export declare function getAudioConnectionQualityLevel(bitrate: number): ConnectionQualityLevel;
export declare function getSenderAudioMetrics(previousStats: Map<string, RTCOutboundRTPStreamReport>, currentStats: WebRTCStats): BitrateLevel;
export declare function getSenderVideoMetrics(previousStats: Map<string, RTCOutboundRTPStreamReport>, currentStats: WebRTCStats): BitrateLevel;
export declare function getReceiverAudioMetrics(previousStats: Map<string, RTCInboundRTPStreamReport>, currentStats: WebRTCStats): BitrateLevel;
export declare function getReceiverVideoMetrics(previousStats: Map<string, RTCInboundRTPStreamReport>, currentStats: WebRTCStats): BitrateLevel;