export declare class NgxScannerQrcodeComponent {
    private line;
    private color;
    private canvas;
    private data;
    private error;
    private videoElement;
    private medias;
    isLoading: boolean;
    isStart: boolean;
    ngOnInit(): void;
    /**
     * initBackgroundColor
     */
    private initBackgroundColor;
    /**
     * toggleCamera
     */
    toggleCamera(): void;
    /**
     * start
     * @returns
     */
    start(): void;
    /**
     * stop
     */
    stop(): void;
}