export interface DeviceListItem {
    deviceId: string;
    label: string;
    isSelected: boolean;
}
/**
 * Utility hook that helps render a list of devices or implement a device selector.
 * Compared to someting like `useCameraState().devices`, it has some handy features:
 * 1. Adds the "Default" device to the list if applicable (either the user did not
 * select a device, or a previously selected device is no longer available).
 * 2. Maps the device list to a format more suitable for rendering.
 */
export declare function useDeviceList(devices: MediaDeviceInfo[], selectedDeviceId: string | undefined): {
    deviceList: DeviceListItem[];
    selectedDeviceInfo: DeviceListItem;
    selectedIndex: number;
};