export declare const MINIMUM_FACE_AREA_PERCENTAGE = 36;
export declare const MAXIMUM_FACE_AREA_PERCENTAGE = 85;
export declare const MOBILE_REAR_MINIMUM_FACE_AREA_PERCENTAGE = 13;
export declare const MOBILE_REAR_MAXIMUM_FACE_AREA_PERCENTAGE = 70;
export interface FaceAreaThresholds {
    minimum: number;
    maximum: number;
}
export declare const DEFAULT_FACE_AREA_THRESHOLDS: FaceAreaThresholds;
export declare const MOBILE_REAR_FACE_AREA_THRESHOLDS: FaceAreaThresholds;
export declare function isFaceAreaOptimal(faceAreaPercentage: number, thresholds?: FaceAreaThresholds): boolean;
export declare function calculateCoverDimensions(videoWidth: number, videoHeight: number, containerWidth: number, containerHeight: number): {
    renderedWidth: number;
    renderedHeight: number;
    offsetX: number;
    offsetY: number;
};
