/** @format */
import { InputBuffer } from '../../common/input-buffer.js';
import { WebPInfo } from './webp-info.js';
/**
 * Class representing internal information about a WebP image.
 * Extends the WebPInfo class.
 */
export declare class WebPInfoInternal extends WebPInfo {
    /**
     * The number of frames in the WebP image.
     * @private
     */
    private _frameCount;
    /**
     * Gets the number of frames in the WebP image.
     * @returns {number} The number of frames.
     */
    get frameCount(): number;
    /**
     * Sets the number of frames in the WebP image.
     * @param {number} v - The number of frames.
     */
    set frameCount(v: number);
    /**
     * The current frame index.
     * @private
     */
    private _frame;
    /**
     * Gets the current frame index.
     * @returns {number} The current frame index.
     */
    get frame(): number;
    /**
     * Sets the current frame index.
     * @param {number} v - The current frame index.
     */
    set frame(v: number);
    /**
     * The alpha data buffer.
     * @private
     */
    private _alphaData?;
    /**
     * Gets the alpha data buffer.
     * @returns {InputBuffer<Uint8Array> | undefined} The alpha data buffer.
     */
    get alphaData(): InputBuffer<Uint8Array> | undefined;
    /**
     * Sets the alpha data buffer.
     * @param {InputBuffer<Uint8Array> | undefined} v - The alpha data buffer.
     */
    set alphaData(v: InputBuffer<Uint8Array> | undefined);
    /**
     * The size of the alpha data.
     * @private
     */
    private _alphaSize;
    /**
     * Gets the size of the alpha data.
     * @returns {number} The size of the alpha data.
     */
    get alphaSize(): number;
    /**
     * Sets the size of the alpha data.
     * @param {number} v - The size of the alpha data.
     */
    set alphaSize(v: number);
    /**
     * The position of the VP8 data.
     * @private
     */
    private _vp8Position;
    /**
     * Gets the position of the VP8 data.
     * @returns {number} The position of the VP8 data.
     */
    get vp8Position(): number;
    /**
     * Sets the position of the VP8 data.
     * @param {number} v - The position of the VP8 data.
     */
    set vp8Position(v: number);
    /**
     * The size of the VP8 data.
     * @private
     */
    private _vp8Size;
    /**
     * Gets the size of the VP8 data.
     * @returns {number} The size of the VP8 data.
     */
    get vp8Size(): number;
    /**
     * Sets the size of the VP8 data.
     * @param {number} v - The size of the VP8 data.
     */
    set vp8Size(v: number);
}