Java 在JPanel中嵌入VLCJ

我已经阅读过，当我尝试使用代码进行一些更改时，我得到的只是一个黑色窗口，有人能告诉我我在这里做错了什么吗，我只有一个带有主函数的类：

import java.awt.Color;
import javax.swing.JFrame;
import javax.swing.JPanel;

import com.sun.jna.NativeLibrary;

import uk.co.caprica.vlcj.player.MediaPlayerFactory;
import uk.co.caprica.vlcj.player.embedded.EmbeddedMediaPlayer;
import uk.co.caprica.vlcj.player.embedded.videosurface.CanvasVideoSurface;
import uk.co.caprica.vlcj.runtime.windows.WindowsCanvas;

public class Canvas_Demo {

    // Create a media player factory
    private MediaPlayerFactory mediaPlayerFactory;

    // Create a new media player instance for the run-time platform
    private EmbeddedMediaPlayer mediaPlayer;

    private JPanel panel;
    private WindowsCanvas canvas;
    private JFrame frame;

    //Constructor
    public Canvas_Demo(String url){

        //Creating a panel that while contains the canvas
        panel = new JPanel();
        panel.setBackground(Color.BLACK);

        //Creating the canvas and adding it to the panel :
        canvas = new WindowsCanvas();
        panel.add(canvas);
        panel.revalidate();
        panel.repaint();

        //Creation a media player :
        mediaPlayerFactory = new MediaPlayerFactory();
        mediaPlayer = mediaPlayerFactory.newEmbeddedMediaPlayer();
        CanvasVideoSurface videoSurface = mediaPlayerFactory.newVideoSurface(canvas);
        mediaPlayer.setVideoSurface(videoSurface);

        //Construction of the jframe :
        frame = new JFrame("Demo with Canvas AWT");
        frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
        frame.setLocation(100, 100);
        frame.setSize(700, 500);

        //Adding the panel to the 
        frame.add(panel);
        frame.setVisible(true);

        //Playing the video
        mediaPlayer.playMedia(url);


    }
    //Main function :
    public static void main(String[] args) {
        NativeLibrary.addSearchPath("libvlc", "C:/Program Files/VideoLAN/VLC");

        final String url = "C:/MyVideo.mp4";

        new Canvas_Demo(url);

    }

}

---

提前感谢。

当我将视频url（也称为MRL作为媒体资源定位器）更改为以下内容时：

C:\\MyVideo.mp4

我在窗口中看到了视频

//Creating the canvas and adding it to the panel :
canvas = new WindowsCanvas();
canvas.setSize(700, 500);
panel.add(canvas);

---

这对我有帮助。

我做了类似的事情

EmbeddedMediaPlayerComponent mediaPlayerComponent = new EmbeddedMediaPlayerComponent();
        EmbeddedMediaPlayer embeddedMediaPlayer = mediaPlayerComponent.getMediaPlayer();

        Canvas videoSurface = new Canvas();
        videoSurface.setBackground(Color.black);
        videoSurface.setSize(800, 600);

        List<String> vlcArgs = new ArrayList<String>();

        vlcArgs.add("--no-plugins-cache");
        vlcArgs.add("--no-video-title-show");
        vlcArgs.add("--no-snapshot-preview");

        MediaPlayerFactory mediaPlayerFactory = new MediaPlayerFactory(vlcArgs.toArray(new String[vlcArgs.size()]));
        mediaPlayerFactory.setUserAgent("vlcj test player");
        embeddedMediaPlayer.setVideoSurface(mediaPlayerFactory.newVideoSurface(videoSurface));
        embeddedMediaPlayer.setPlaySubItems(true);

        final PlayerControlsPanel controlsPanel = new PlayerControlsPanel(embeddedMediaPlayer);
        PlayerVideoAdjustPanel videoAdjustPanel = new PlayerVideoAdjustPanel(embeddedMediaPlayer);

//            mediaPlayerComponent.getMediaPlayer().playMedia(Constant.PATH_ROOT + Constant.PATH_MEDIA + "tmp.mp4");
        JFrame mainFrame = new JFrame();
        mainFrame.setLayout(new BorderLayout());
        mainFrame.setBackground(Color.black);
        mainFrame.add(videoSurface, BorderLayout.CENTER);
        mainFrame.add(controlsPanel, BorderLayout.SOUTH);
        mainFrame.add(videoAdjustPanel, BorderLayout.EAST);

        //create a button which will hide the panel when clicked.
        mainFrame.pack();
        mainFrame.setVisible(true);

        embeddedMediaPlayer.playMedia("tmp.mp4");

EmbeddedMediaPlayerComponent mediaPlayerComponent=新的EmbeddedMediaPlayerComponent（）；
EmbeddedMediaPlayer EmbeddedMediaPlayer=mediaPlayerComponent.getMediaPlayer（）；
Canvas videoSurface=新画布（）；
videoSurface.setBackground（颜色：黑色）；
videoSurface.setSize（800600）；
List vlcArgs=new ArrayList（）；
add（“--无插件缓存”）；
添加（“--无视频标题显示”）；
添加（“--无快照预览”）；
MediaPlayerFactory MediaPlayerFactory=新的MediaPlayerFactory（vlcArgs.toArray（新字符串[vlcArgs.size（）]）；
mediaPlayerFactory.setUserAgent（“vlcj测试播放器”）；
embeddedMediaPlayer.setVideoSurface（mediaPlayerFactory.newVideoSurface（videoSurface））；
embeddedMediaPlayer.setPlaySubItems（true）；
最终PlayerControlsPanel controlsPanel=新的PlayerControlsPanel（嵌入式MediaPlayer）；
PlayerServiceDeoAdjustPanel videoAdjustPanel=新的PlayerServiceDeoAdjustPanel（嵌入式媒体播放器）；
//mediaPlayerComponent.getMediaPlayer（）.playMedia（Constant.PATH_ROOT+Constant.PATH_MEDIA+“tmp.mp4”）；
JFrame mainFrame=新JFrame（）；
mainFrame.setLayout（新的BorderLayout（））；
主机。背景（颜色。黑色）；
mainFrame.add（videoSurface、BorderLayout.CENTER）；
mainFrame.add（controlsPanel，BorderLayout.SOUTH）；
mainFrame.add（videoAdjustPanel，BorderLayout.EAST）；
//创建一个按钮，单击该按钮时将隐藏面板。
mainFrame.pack（）；
mainFrame.setVisible（true）；
embeddedMediaPlayer.playMedia（“tmp.mp4”）；

谢谢，但没有结果，只有黑色窗口！这几天来我一直在努力寻找原因！谢谢你，你用哪个图书馆？