export declare function isWebRTCSupported(): boolean;
export declare function getWebRTCVideoCodecs(onlyMedia?: boolean): {
    encoding: RTCRtpCodec[];
    decoding: RTCRtpCodec[];
};
export declare function getWebRTCAudioCodecs(onlyMedia?: boolean): {
    encoding: RTCRtpCodec[];
    decoding: RTCRtpCodec[];
};