/**
 * AVIF encoding and decoding functions
 * Simplified API matching Golang implementation
 */
import { AVIFEncodeOptions, AVIFDecodeOptions, DecodedImage } from './types';
/**
 * Encode an image file (JPEG, PNG, etc.) to AVIF format
 *
 * @param imageFileData - Buffer containing image file data (JPEG, PNG, etc.)
 * @param options - AVIF encoding options
 * @returns AVIF encoded data as Buffer
 * @throws NextImageError if encoding fails
 *
 * Example:
 * ```typescript
 * import { encodeAVIF } from '@ideamans/libnextimage';
 * import * as fs from 'fs';
 *
 * const jpegData = fs.readFileSync('input.jpg');
 * const avifData = encodeAVIF(jpegData, { quality: 60 });
 * fs.writeFileSync('output.avif', avifData);
 * ```
 */
export declare function encodeAVIF(imageFileData: Buffer, options?: AVIFEncodeOptions): Buffer;
/**
 * Decode AVIF data to pixel data
 *
 * @param avifData - Buffer containing AVIF encoded data
 * @param options - AVIF decoding options
 * @returns Decoded image with pixel data
 * @throws NextImageError if decoding fails
 *
 * Example:
 * ```typescript
 * import { decodeAVIF } from '@ideamans/libnextimage';
 * import * as fs from 'fs';
 *
 * const avifData = fs.readFileSync('input.avif');
 * const decoded = decodeAVIF(avifData);
 * console.log(`Decoded ${decoded.width}x${decoded.height} image`);
 * // decoded.data contains raw pixel data (RGBA by default)
 * ```
 */
export declare function decodeAVIF(avifData: Buffer, options?: AVIFDecodeOptions): DecodedImage;
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