import type { HandlerForcedRtpExtensions } from '../../handlers/HandlerInterface';
import type { RtpCapabilities } from '../../RtpParameters';
/**
 * This function adds RTCP NACK support for OPUS codec in given capabilities.
 */
export declare function addNackSupportForOpus(rtpCapabilities: RtpCapabilities): void;
export declare function getMsidStreamIdAndTrackId(msid?: string): {
    msidStreamId?: string;
    msidTrackId?: string;
};
/**
 * Apply given desired RTP extension to the given RTCRtpTransceiver.
 *
 * @see https://w3c.github.io/webrtc-extensions/#rtp-header-extension-control
 */
export declare function applyForcedRtpExtensions(transceiver: RTCRtpTransceiver, forcedRtpExtensions: HandlerForcedRtpExtensions): boolean;
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