java - jvlc 播放器不加载视频

Question

我一直在尝试通过 Java 播放视频。我正在使用 DJ Native swing 播放视频。以下代码正在编译，没有任何错误，但它没有加载视频。

import chrriis.dj.nativeswing.swtimpl.NativeInterface;
import chrriis.dj.nativeswing.swtimpl.components.JVLCPlayer;

import javax.swing.*;
import java.awt.*;

public class VideoPlayer extends Thread{

    public static void start(final String title) {
        NativeInterface.open();
        SwingUtilities.invokeLater(new Runnable() {
            public void run() {
                JFrame frame = new JFrame(title);
                frame.setDefaultCloseOperation(WindowConstants.DISPOSE_ON_CLOSE);
                frame.getContentPane().add(getBrowserPanel(title), BorderLayout.CENTER);
                frame.setSize(800, 600);
                frame.setLocationByPlatform(true);
                frame.setVisible(true);
            }
        });
    }

    public void close(){
        NativeInterface.runEventPump();
        Runtime.getRuntime().addShutdownHook(new Thread(new Runnable() {
            @Override
            public void run() {
                NativeInterface.close();
            }
        }));
    }
    public static JPanel getBrowserPanel(String url) {
        JPanel webBrowserPanel = new JPanel(new BorderLayout());
        JVLCPlayer jvlcPlayer=new JVLCPlayer();
        webBrowserPanel.add(jvlcPlayer, BorderLayout.CENTER);
        jvlcPlayer.load("filename");
        jvlcPlayer.setControlBarVisible(true);

        return webBrowserPanel;
    }
}