import type { FileItem, Video } from '@chayns-components/core';
export type GalleryMediaFile = FileItem['file'];
export type MediaContentSize = {
    height: number;
    width: number;
};
export declare const isVideoFile: (file: GalleryMediaFile) => file is Video;
export declare const getMediaSourceUrl: (file: GalleryMediaFile) => string;
export declare const getMediaPreviewUrl: (file: GalleryMediaFile, previewUrl?: string) => string | undefined;
/**
 * Checks whether the given URL belongs to the chayns image service.
 */
export declare const isImageServiceUrl: (url: string) => boolean;
/**
 * Detects whether the given image-service URL already contains resize parameters.
 */
export declare const hasImageServiceTransformParameters: (url: string) => boolean;
/**
 * Expands a chayns image-service URL to a display-appropriate size when no transform is present.
 */
export declare const getResponsiveImageServiceUrl: (url: string, size?: MediaContentSize, devicePixelRatio?: number) => string;