/** @format */
import { MemoryImage } from '../image/image.js';
import { Decoder, DecoderDecodeOptions } from './decoder.js';
import { ImageFormat } from './image-format.js';
import { PsdImage } from './psd/psd-image.js';
/**
 * Decode a Photoshop PSD image.
 */
export declare class PsdDecoder implements Decoder {
    /**
     * Information about the PSD image.
     */
    private _info;
    /**
     * Get the PSD image information.
     * @returns {PsdImage | undefined} The PSD image information.
     */
    get info(): PsdImage | undefined;
    /**
     * Get the image format.
     * @returns {ImageFormat} The image format.
     */
    get format(): ImageFormat;
    /**
     * Get the number of frames available to be decoded.
     * @returns {number} The number of frames.
     */
    get numFrames(): number;
    /**
     * Decode a raw PSD image without rendering it to a flat image.
     * @param {Uint8Array} bytes - The raw PSD image data.
     * @returns {PsdImage | undefined} The decoded PSD image.
     */
    decodePsd(bytes: Uint8Array): PsdImage | undefined;
    /**
     * Test if the given file is able to be decoded by this Decoder.
     * @param {Uint8Array} bytes - The raw file data.
     * @returns {boolean} True if the file is valid, false otherwise.
     */
    isValidFile(bytes: Uint8Array): boolean;
    /**
     * Start decoding the data as an animation sequence.
     * @param {Uint8Array} bytes - The raw file data.
     * @returns {PsdImage | undefined} The PSD image information.
     */
    startDecode(bytes: Uint8Array): PsdImage | undefined;
    /**
     * Decode the file and extract a single image from it.
     * @param {DecoderDecodeOptions} opt - The decode options.
     * @param {Uint8Array} opt.bytes - The raw file data.
     * @param {number} [opt.frameIndex] - The index of the frame to decode.
     * @returns {MemoryImage | undefined} The decoded image.
     */
    decode(opt: DecoderDecodeOptions): MemoryImage | undefined;
    /**
     * Decode a single frame from the data set with startDecode.
     * @param {number} _frameIndex - The index of the frame to decode.
     * @returns {MemoryImage | undefined} The decoded frame.
     */
    decodeFrame(_frameIndex: number): MemoryImage | undefined;
}