export declare enum TrackConnectStatus {
    Idle = 0,
    Connecting = 1,
    Connect = 2
}
export interface MediaTrack {
    track: MediaStreamTrack;
    sender?: RTCRtpSender;
    receiver?: RTCRtpReceiver;
    info: MediaTrackInfo;
}
export interface MediaTrackInfo {
    trackId?: string;
    localId?: string;
    muted?: boolean;
    master?: boolean;
    kind: string;
    userId: string;
    tag?: string;
}
/**
 * 用于返回给用户的 Track 数据, 如果是订阅的流会带有 userId 和 tag 信息
*/
export interface TrackBaseInfo {
    trackId?: string;
    muted?: boolean;
    kind: string;
    userId?: string;
    tag?: string;
    kbps?: number;
    mid?: string;
    versionid: number;
    profiles: Profile[];
}
export declare enum TrackSourceType {
    NORMAL = 0,
    EXTERNAL = 1,
    MIXING = 2
}
export declare type Profile = 'high' | 'medium' | 'low';
export declare type TrackProfiles = {
    [key: string]: Profile;
};