export declare function buildSenderReportWithSdes(ssrc: number, packetCount: number, octetCount: number, rtpTimestamp: number, cname?: Uint8Array<ArrayBufferLike>): Uint8Array;
/** RFC 4585 Picture Loss Indication. Requests an immediate H.264 key frame. */
export declare function buildPictureLossIndication(senderSsrc: number, mediaSsrc: number, whatsappVideoProfile?: boolean): Uint8Array;
/** RFC 5104 Full Intra Request. Some WhatsApp devices react to FIR but not PLI. */
export declare function buildFullIntraRequest(senderSsrc: number, mediaSsrc: number, sequenceNumber: number): Uint8Array;