export type SdpDirection = 'sendrecv' | 'sendonly' | 'recvonly' | 'inactive';
export type SdpSetupRole = 'actpass' | 'active' | 'passive' | 'holdconn';
export type SdpCodec = {
    payloadType: number;
    mimeType: string;
    clockRate?: number;
    channels?: number;
    sdpFmtpLine?: string;
    parameters: Record<string, string>;
    rtcpFeedback: string[];
};
export type SdpMediaSection = {
    kind: string;
    mid?: string;
    port: number;
    protocol: string;
    direction: SdpDirection;
    codecs: SdpCodec[];
    extensions: {
        id: number;
        uri: string;
    }[];
    ssrcs: number[];
    ssrcGroups: {
        semantics: string;
        ssrcs: number[];
    }[];
    rids: {
        id: string;
        direction: 'send' | 'recv';
    }[];
    simulcast?: string;
    rtcpMux: boolean;
    rtcpRsize: boolean;
    setup?: SdpSetupRole;
    bandwidthAsInKbps?: number;
    bandwidthTiasInBps?: number;
};
export type ParsedSdp = {
    sessionVersion?: number;
    iceLite: boolean;
    iceOptions: string[];
    bundleGroups: string[][];
    extmapAllowMixed: boolean;
    setup?: SdpSetupRole;
    mediaSections: SdpMediaSection[];
};
export declare function parseSdp(sdp: string): ParsedSdp;
export declare function redactSdp(sdp: string): string;
export declare const directionSends: (direction?: SdpDirection) => direction is "sendrecv" | "sendonly";
export declare const directionReceives: (direction?: SdpDirection) => direction is "sendrecv" | "recvonly";