如何将 vlcj 与 java 一起使用？

Question

大家好，我正在尝试将 vlcj 用于 java，但运行出现了很多错误。我检查了我的 jvm 版本和 vlc 媒体版本都是 64 位的。

我尝试了很多我在互联网上研究过的代码。我按照步骤在我的代码中插入 vlcj.jar 但似乎没有任何效果。

我按照 caprica 上的教程进行操作，但它不起作用。现在我收到错误

Exception in thread "main" java.lang.IllegalArgumentException: Interface (LibVlc) of library=libvlc does not extend Library B.

有人可以帮忙吗？

package mrbool.vlc.example; 

import uk.co.caprica.vlcj.binding.LibVlc;
import uk.co.caprica.vlcj.factory.MediaPlayerFactory;

import uk.co.caprica.vlcj.player.embedded.EmbeddedMediaPlayer;
import uk.co.caprica.vlcj.binding.LibVlc;

import com.sun.jna.Native;
import com.sun.jna.NativeLibrary;
import uk.co.caprica.vlcj.binding.RuntimeUtil;
public class JavaApplication1 {
        


    public static void main(String[] args) {
      NativeLibrary.addSearchPath(RuntimeUtil.getLibVlcLibraryName(),"C:\Program Files\VideoLAN\VLC");
      Native.loadLibrary(RuntimeUtil.getLibVlcLibraryName(), LibVlc.class);
      MediaPlayerFactory factory = new MediaPlayerFactory();
    }

}

Answer 1

有时是因为VLC和JRE的架构不兼容造成的

您可以使用以下代码检查 JRE 体系结构：

public class JavaApplication12 {
    public static void main(String[] args) {
        System.out.println(System.getProperty("sun.arch.data.model"));
    }
}


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");

Answer 2

将 vlc 媒体播放器安装到您的项目所在的同一目录中

Answer 3

此外，如果您自己执行此操作，我建议使用 chrome。您只需右键单击要抓取的任何内容并转到检查元素。它会将您带到 html 中该元素所在的确切位置。在这种情况下，您首先要找出所有结果列表的根所在的位置。当你找到它时，你想要指定元素，最好是一个唯一的属性来搜索它。在这种情况下，根元素 i

public class ScanWebSO 
    {
    public static void main (String args[])
    {
        Document doc;
        try{
            doc =        Jsoup.connect("https://www.google.com/search?as_q=&as_epq=%22Yorkshire+Capital%22+&as_oq=fraud+OR+allegations+OR+scam&as_eq=&as_nlo=&as_nhi=&lr=lang_en&cr=countryCA&as_qdr=all&as_sitesearch=&as_occt=any&safe=images&tbs=&as_filetype=&as_rights=").userAgent("Mozilla").ignoreHttpErrors(true).timeout(0).get();
            Elements links = doc.select("li[class=g]");
            for (Element link : links) {
                Elements titles = link.select("h3[class=r]");
                String title = titles.text();
    
                Elements bodies = link.select("span[class=st]");
                String body = bodies.text();
    
                System.out.println("Title: "+title);
                System.out.println("Body: "+body+"\n");
            }
        }
        catch (IOException e) {
            e.printStackTrace();
        }
    }
    }

如何将 vlcj 与 java 一起使用？

how to use vlcj with java?

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