export declare const FACING_MODE_USER = "user";
export declare const FACING_MODE_ENVIRONMENT = "environment";
export declare const VIDEO_INPUT = "videoinput";
export interface VideoInput {
    inputDeviceInfo: InputDeviceInfo;
    mediaTrackCapabilities: MediaTrackCapabilities;
}
export interface VideoInputMode {
    deviceId: string;
    label: string;
    facingMode: string;
    aspectRatio?: DoubleRange;
    width?: ULongRange;
    height?: ULongRange;
}