import type { Readable } from 'svelte/store';
import type { AudioOffer, VideoOffer } from '../../plugins/videoroom/publish';
import type { DeviceOffer } from '../../plugins/videoroom/publish/factory';
export { default as Selector } from './index.svelte';
/**
 * The payload of the attach event; exposes the refresh function to the caller
 */
export declare type SelectorAttachEvent = {
    refresh: () => Promise<void>;
};
/**
 * The payload of a refresh event, listing the devices and those selected
 */
export declare type RefreshEvent = {
    devices: Devices;
    selected: SelectedDevices;
};
/**
 * Config option for which kinds of media to check and return
 */
declare type ListDeviceConfig = {
    audio?: boolean;
    video?: boolean;
};
/**
 * The return structure of the ListDevices function
 */
export declare type SelectedDevices = {
    audio?: Id;
    video?: Id;
};
/**
 * Index devices as lists according to their kind
 */
export declare type Devices = Record<'videoinput' | 'audioinput', MediaDeviceInfo[]>;
/**
 * For sanity's sake, explicitly declare this trivial type
 */
export declare type Id = string;
export declare type Offer = VideoOffer | AudioOffer;
export declare type OfferManager = {
    mute: () => void;
    unmute: () => void;
    setDeviceId: (deviceId: string) => void;
    offer: Readable<DeviceOffer | false>;
};
/**
 * Wrap up the logic for offer handling: `mute` will always set the offer to
 * false, otherwise it's a janus-compatible object structure with the deviceId
 */
export declare function setupOffer(initial: Offer | false): OfferManager;
/**
 * A promisified wrapper around Janus' listDevices() function
 */
export declare function listDevices(): Promise<Devices>;
/**
 * Helper function to extract the device IDs of the requested device types of the given media stream
 */
export declare function getDeviceIdsFromLocalStream(localStream: MediaStream, config?: ListDeviceConfig): SelectedDevices;