/// <reference types="node" />
export interface BarColor {
    size: number;
    color: number;
    background: number;
    backgroundOpacity: number;
}
type IconType = 'directionDown' | 'directionDownLeft' | 'directionDownRight' | 'directionLeft' | 'directionRight' | 'directionUp' | 'directionUpLeft' | 'directionUpRight' | 'forward' | 'headset1' | 'headset2' | 'headset3' | 'headset4' | 'mic1' | 'mic2' | 'mic3' | 'mic4' | 'mic5' | 'pause' | 'play' | 'playPause' | 'power' | 'record' | 'recordRed' | 'rewind' | 'stop' | 'custom';
export interface Icon {
    type: IconType;
    base64: string;
    argb: number[];
    width: number;
    height: number;
}
export interface OptionsBar {
    width: number;
    height: number;
    colors: BarColor[];
    barLength: number;
    barWidth: number;
    value: number;
    type: 'vertical' | 'horizontal';
    offsetX?: number;
    offsetY?: number;
    opacity?: number;
    reverse?: boolean;
}
export interface OptionsBorder {
    width: number;
    height: number;
    color: number;
    size: number;
    opacity?: number;
    type?: 'border' | 'top' | 'bottom' | 'left' | 'right';
}
export interface OptionsCircle {
    radius: number;
    color: number;
    opacity?: number;
}
export interface OptionsCorner {
    width: number;
    height: number;
    color: number;
    size?: number;
    location: 'topLeft' | 'topRight' | 'bottomLeft' | 'bottomRight';
    opacity?: number;
}
export interface OptionsIcon {
    width: number;
    height: number;
    type: IconType | 'Custom';
    custom?: Uint8Array;
    customWidth?: number;
    customHeight?: number;
    offsetX?: number;
    offsetY?: number;
}
export interface OptionsRect {
    width: number;
    height: number;
    color: number;
    rectWidth: number;
    rectHeight: number;
    strokeWidth: number;
    fillColor?: number;
    fillOpacity?: number;
    offsetX?: number;
    offsetY?: number;
    opacity?: number;
}
export interface OptionParseBase64 {
    alpha?: boolean;
}
export interface OptionToPNG64 {
    image: Buffer | Uint8Array;
    width: number;
    height: number;
}
/**
 * Generates an image buffer of a bar and calculates the position of the specified value along that bar
 *
 * @param options - Required and optional params for the bar
 * @returns Image buffer containing a bar as per options
 */
export declare const bar: (options: OptionsBar) => Uint8Array;
/**
 * Generates an image buffer of border
 *
 * @param options - Required and optional params for the indicator
 * @returns Image buffer containing a border indicator as per options
 */
export declare const border: (options: OptionsBorder) => Uint8Array;
/**
 * Generates an image buffer of a circle at a specified radius. Width and Height are 2 x radius
 *
 * @param options - Required and optional params for the indicator
 * @returns Image buffer containing a circle as per options
 */
export declare const circle: (options: OptionsCircle) => Uint8Array;
/**
 * Generates an image buffer of a corner indicator
 *
 * @param options - Required and optional params for the indicator
 * @returns Image buffer containing a corner indicator as per options
 */
export declare const corner: (options: OptionsCorner) => Uint8Array;
/**
 * Generates an image buffer with a specified icon
 *
 * @param options - Required and options params for the icon
 * @returns Image buffer containing an icon as per options
 */
export declare const icon: (options: OptionsIcon) => Uint8Array;
/**
 * Generates an image buffer of a rectangle
 *
 * @param options - Required and optional params for the indicator
 * @returns Image buffer containing a rectangle as per options
 */
export declare const rect: (options: OptionsRect) => Uint8Array;
/**
 * Stacks an array of same-size image buffers into a single buffer
 *
 * @param buffers - Array of image buffers
 * @returns A single image buffer
 */
export declare const stackImage: (buffers: Uint8Array[]) => Uint8Array;
/**
 * Converts a base64 encoded PNG such as that used by png64 feedback into an imagebuffer that can be used with other functions
 *
 * @param png64 - base64 encoded PNG string
 * @param options - Required and optional params
 * @returns An image buffer
 */
export declare const parseBase64: (png64: string, options?: OptionParseBase64) => Promise<Uint8Array>;
/**
 * Converts an imageBuffer into a base64 encoded PNG string for use as a buttons png64 styling
 *
 * @param options - Required and optional params
 * @returns An base64 encoded PNG
 */
export declare const toPNG64: (options: OptionToPNG64) => string;
export {};