export interface OutboundVideoStats {
    /** The outbound-rtp stat's id, for matching other stats about the same stream. */
    id: string;
    ssrc: number | null;
    /** The sent track, read off the media-source stat. Null when the report does not say. */
    trackId: string | null;
    label: "camera" | "screen";
    codec: string | null;
    frameWidth: number | null;
    frameHeight: number | null;
    framesPerSecond: number | null;
    bitrateKbps: number | null;
    packetsSent: number | null;
    qualityLimitationReason: string | null;
    scalabilityMode: string | null;
    encoderImplementation: string | null;
    totalEncodeTimeMs: number | null;
    framesEncoded: number | null;
    keyFramesEncoded: number | null;
    pliCount: number | null;
    nackCount: number | null;
}
export interface InboundVideoStats {
    trackId: string;
    codec: string | null;
    frameWidth: number | null;
    frameHeight: number | null;
    framesPerSecond: number | null;
    bitrateKbps: number | null;
    jitterMs: number | null;
    packetsReceived: number | null;
    packetsLost: number | null;
    framesDecoded: number | null;
    framesDropped: number | null;
    decoderImplementation: string | null;
    pliCount: number | null;
    firCount: number | null;
    nackCount: number | null;
}
export interface ConnectionStats {
    rttMs: number | null;
    availableOutKbps: number | null;
    candidateType: string | null;
    transportProtocol: string | null;
}
export interface VideoStatsBreakdown {
    outbound: OutboundVideoStats[];
    inbound: InboundVideoStats[];
    connection: ConnectionStats;
}
export declare function useVideoStats(enabled: boolean): VideoStatsBreakdown;