import { NativeEventEmitter } from 'react-native';
import { ConstrainDouble, RealtimeKitMediaStreamConstraints, RealtimeKitMediaTrackConstraints, MediaDeviceInfo } from './LocalMediaInterfaces';
export interface LocalAudioOptions {
    disableAP?: boolean;
    disableAEC?: boolean;
    disableNS?: boolean;
    disableAGC?: boolean;
    disableHPF?: boolean;
}
export declare const VIDEO_CONSTRAINTS: {
    qvga: {
        width: {
            ideal: number;
        };
        height: {
            ideal: number;
        };
    };
    vga: {
        width: {
            ideal: number;
        };
        height: {
            ideal: number;
        };
    };
    hd: {
        width: {
            ideal: number;
        };
        height: {
            ideal: number;
        };
    };
    hd_cropped: {
        width: {
            ideal: number;
        };
        height: {
            ideal: number;
        };
    };
};
export declare const deviceChangeListener: NativeEventEmitter;
/**
 * To initialize an instance of this class, use the
 * `.init()` static method.
 */
export default class LocalMediaUtils {
    #private;
    private constructor();
    static init(): Promise<LocalMediaUtils>;
    destruct(): Promise<void>;
    static isDeviceListAvailable(): boolean;
    private static enumerateVideoDevices;
    private static enumerateAudioDevices;
    static getVideoConstraints(options?: {
        videoDeviceId?: string;
        videoTrackConstraints?: boolean | RealtimeKitMediaTrackConstraints;
        facingMode?: string;
        frameRate?: ConstrainDouble;
    }): RealtimeKitMediaStreamConstraints;
    private static getUserMediaWithTimeout;
    static getAudioTrack(): Promise<import("@cloudflare/react-native-webrtc").MediaStreamTrack>;
    static getVideoTrack(constraints: RealtimeKitMediaStreamConstraints): Promise<import("@cloudflare/react-native-webrtc").MediaStreamTrack>;
    static getScreenShareTracks(): Promise<{
        video: import("@cloudflare/react-native-webrtc").MediaStreamTrack;
        audio: import("@cloudflare/react-native-webrtc").MediaStreamTrack;
    }>;
    static getAudioAndVideoTrack(constraints: RealtimeKitMediaStreamConstraints): Promise<{
        audioTrack: import("@cloudflare/react-native-webrtc").MediaStreamTrack;
        videoTrack: import("@cloudflare/react-native-webrtc").MediaStreamTrack;
    }>;
    onDeviceChange(callback: (changedDevices: {
        added: MediaDeviceInfo[];
        removed: MediaDeviceInfo[];
        selectedDevice?: string;
    }, forceDeviceChange?: boolean) => void): void;
    repopulateAvailableDevices(): Promise<void>;
    chooseAudioRoute(route: String): Promise<any>;
    get availableDevices(): MediaDeviceInfo[];
    getAvailableDevicesByKind(kind: string): MediaDeviceInfo[];
    getDeviceById(deviceId: string, kind: 'audioinput' | 'audiooutput' | 'videoinput'): MediaDeviceInfo;
    /**
     * Returns all audio input devices (microphone devices).
     */
    getAudioDevices(): Promise<MediaDeviceInfo[]>;
    /**
     * Returns all video input devices.
     */
    getVideoDevices(): Promise<MediaDeviceInfo[]>;
    /**
     * Returns all audio output devices (speaker devices).
     */
    getSpeakerDevices(): Promise<{
        deviceId: string;
        label: string;
        kind: string;
        groupId: string;
        facing: string;
        toJSON(): any;
    }[]>;
}