export declare class QNRTCError extends Error {
    code: number;
    error: string;
    constructor(code: number, message: string);
}
export declare const UNEXPECTED_ERROR: (msg: string) => QNRTCError;
export declare const AUTH_ENTER_ROOM_ERROR: (msg: string) => QNRTCError;
export declare const SIGNAL_ENTER_ROOM_ERROR: (msg: string) => QNRTCError;
export declare const PUBLISH_ERROR: (code: number, msg: string) => QNRTCError;
export declare const CREATE_MERGE_JOB_ERROR: (code: number, msg: string) => QNRTCError;
export declare const PUBLISH_ICE_ERROR: () => QNRTCError;
export declare const SUB_ICE_ERROR: () => QNRTCError;
export declare const SUB_ERROR_NO_STREAM: (userId: string) => QNRTCError;
export declare const SUB_P2P_ERROR: (msg: string) => QNRTCError;
export declare const PUB_P2P_ERROR: (msg: string) => QNRTCError;
export declare const UNSUPPORT_FMT: (msg: string) => QNRTCError;
export declare const JOIN_ROOM_ERROR: (code: number, msg: string) => QNRTCError;
export declare const SUB_ERROR: (code: number, msg: string) => QNRTCError;
export declare const UNPUBLISH_ERROR: (code: number, msg: string) => QNRTCError;
export declare const UNSUB_ERROR: (code: number, msg: string) => QNRTCError;
export declare const CONTROL_ERROR: (code: number, msg: string) => QNRTCError;
export declare const NOT_SUPPORT_ERROR: (msg: string) => QNRTCError;
export declare const SERVER_ERROR: (code: number, msg: string) => QNRTCError;
export declare const SERVER_UNAVAILABLE: () => QNRTCError;
export declare const PLUGIN_NOT_AVALIABLE: (msg: string) => QNRTCError;
export declare const DEVICE_NOT_ALLOWED: (msg: string) => QNRTCError;
export declare const SUB_ERROR_NO_USER: (userId: string) => QNRTCError;
export declare const NO_MERGE_JOB: (id: string) => QNRTCError;
export declare const SCREEN_PERMISSION_DENIED: () => QNRTCError;
export declare const SUB_PUB_ABORT: () => QNRTCError;
export declare const AUDIO_DECODE_ERROR: (e: Error) => QNRTCError;
export declare const PLAY_NOT_ALLOWED: (msg: string) => QNRTCError;
export declare const AUTO_SWITCH_ERROR: (msg: string) => QNRTCError;
export declare const WS_ABORT: () => QNRTCError;
/**
 * Error produced when calling a method in an invalid state.
 */
export declare class InvalidStateError extends Error {
    constructor(message: string);
}