export default class SdpParser { private readonly _sdp; private readonly _audioCodec; private readonly _videoCodec; private readonly _isAudioTrackEnabled; private readonly _isVideoTrackEnabled; constructor(sdp: string); get audioCodec(): string; get videoCodec(): string; get isAudioTrackEnabled(): boolean; get isVideoTrackEnabled(): boolean; private isTrackByTypeEnabled; private applyCodec; }