export default SdpHelper;
declare class SdpHelper {
    constructor(logger: any);
    logger: any;
    /**
       * @param sdp string
       * @param allowedProfiles array[]|string|Regexp
       */
    filterH264Profiles(sdp: any, allowedProfiles: any): string;
    filterDirectCandidates(sdp: any, force?: boolean): any;
    isDirectCandidate(candidateLine: any): boolean;
}