export declare const DEFAULT_WEBCAM_SIMULCAST_ENCODINGS: {
    scaleResolutionDownBy: number;
    maxBitrate: number;
    maxFramerate: number;
}[];
export declare const DEFAULT_SCREEN_MEDIA_SIMULCAST_ENCODINGS: {
    maxBitrate: number;
    dtx: boolean;
}[];
export declare const DEFAULT_AUDIO_ENCODINGS: {
    maxBitrate: number;
    dtx: boolean;
}[];