import type { AV1CodecConfig, AvifInfo, ImageSpatialExtent, ISOBMFFBox, ItemInfo, ItemLocation, PixelInformation } from '../types';
/**
 * Parse ISOBMFF (ISO Base Media File Format) boxes
 */
export declare function parseISOBMFF(buffer: Uint8Array, depth?: number): ISOBMFFBox[];
/**
 * Find a box by type
 */
export declare function findBox(boxes: ISOBMFFBox[], type: string): ISOBMFFBox | undefined;
/**
 * Find all boxes of a type
 */
export declare function findAllBoxes(boxes: ISOBMFFBox[], type: string): ISOBMFFBox[];
/**
 * Validate AVIF file type
 */
export declare function validateFtyp(buffer: Uint8Array): boolean;
/**
 * Parse item location box (iloc)
 */
export declare function parseIloc(data: Uint8Array): ItemLocation[];
/**
 * Parse item info box (iinf)
 */
export declare function parseIinf(data: Uint8Array): ItemInfo[];
/**
 * Parse image spatial extent (ispe)
 */
export declare function parseIspe(data: Uint8Array): ImageSpatialExtent;
/**
 * Parse pixel information (pixi)
 */
export declare function parsePixi(data: Uint8Array): PixelInformation;
/**
 * Parse AV1 codec configuration (av1C)
 */
export declare function parseAv1C(data: Uint8Array): AV1CodecConfig;
/**
 * Get AVIF info from parsed boxes
 */
export declare function getAvifInfo(boxes: ISOBMFFBox[]): AvifInfo;
/**
 * Get image item data
 */
export declare function getImageData(buffer: Uint8Array, boxes: ISOBMFFBox[], itemId: number): Uint8Array | null;
/**
 * Create ftyp box for AVIF
 */
export declare function createFtyp(): Uint8Array;