/**
 * Copyright (c) 2026 Microblink Ltd. All rights reserved.
 */
/**
 * The fit mode.
 */
export type FitMode = "contain" | "cover";
/**
 * Determines the fit mode for the video element based on the container and video dimensions.
 *
 * `cover` is only used when the cropped fraction is less than 10%.
 *
 * When using object-fit: cover, the video is scaled by
 *   `s = max(Cw / Vw, Ch / Vh)`
 * so that one dimension exactly fills the container while the other overflows.
 * The overflowing dimension is then centered and cropped.
 *
 * For the dimension that overflows:
 * - If width is the dominant factor `(Cw/Vw > Ch/Vh)`, then
 *    - `visible dimension = s * Vh`     (actual scaled video height)
 *    - `visible fraction = containerHeight / (s * Vh)`
 *    - `croppedFraction = 1 - (containerHeight / (s * Vh))`
 *
 * - Otherwise, if height is dominant, then
 *    - `visible dimension = s * Vw`     (actual scaled video width)
 *    - `visible fraction = containerWidth / (s * Vw)`
 *    - `croppedFraction = 1 - (containerWidth / (s * Vw))`
 *
 * The croppedFraction represents the relative amount (fraction) of the video that is cropped
 * along the overflowing dimension. We choose "cover" only when the croppedFraction is below 10%.
 *
 * @param Cw - The container width.
 * @param Ch - The container height.
 * @param Vw - The video width.
 * @param Vh - The video height.
 * @returns The fit mode.
 */
export declare const determineFitMode: (Cw: number, Ch: number, Vw: number, Vh: number) => FitMode;
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