vlcj如何重写access moudle进行对视频识别及缓冲进行控制

Question

vlcj jav，playervlcjjavaplayeraccess

Answer 1

是播放器但是服务器端视频是加密的
无法直接播放
我需要在播放器识别视频文件头信息前 将下载文件头修改 即解密
我用的vlc的java binding不知该如何处理这个问题

Answer 2

补充：
import java.awt.Color;
import java.awt.Graphics;
import java.awt.event.WindowEvent;
import java.awt.event.WindowListener;
import java.awt.image.BufferedImage;
import java.awt.image.DataBufferInt;
import java.awt.image.Raster;
import java.util.Date;import javax.swing.JFrame;
import javax.swing.JPanel;import com.sun.jna.Memory;import uk.co.caprica.vlcj.binding.internal.libvlc_media_t;
import uk.co.caprica.vlcj.player.MediaPlayer;
import uk.co.caprica.vlcj.player.MediaPlayerEventListener;
import uk.co.caprica.vlcj.player.MediaPlayerFactory;
import uk.co.caprica.vlcj.player.direct.BufferFormat;
import uk.co.caprica.vlcj.player.direct.BufferFormatCallback;
import uk.co.caprica.vlcj.player.direct.DirectMediaPlayer;
import uk.co.caprica.vlcj.player.direct.RenderCallback;
import uk.co.caprica.vlcj.player.direct.format.RV32BufferFormat;
public class Test extends JFrame implements RenderCallback,BufferFormatCallback{
/**
 * 
 */
private static final long serialVersionUID = 1L;
private DirectMediaPlayer mp;
private MediaPlayerFactory factory;
private BufferedImage frame;
JPanel pane;
private boolean flag=true;

public static void main(String[] argc){
Test t = new Test();
t.setBounds(100, 100, 800, 600);
t.setDefaultCloseOperation(EXIT_ON_CLOSE);
t.setVisible(true);
}

Test(){
this.addWindowListener(new WindowListener(){ @Override
public void windowOpened(WindowEvent e) {
// TODO Auto-generated method stub

} @Override
public void windowClosing(WindowEvent e) {
// TODO Auto-generated method stub
mp.release();
factory.release();
} @Override
public void windowClosed(WindowEvent e) {
// TODO Auto-generated method stub

} @Override
public void windowIconified(WindowEvent e) {
// TODO Auto-generated method stub

} @Override
public void windowDeiconified(WindowEvent e) {
// TODO Auto-generated method stub

} @Override
public void windowActivated(WindowEvent e) {
// TODO Auto-generated method stub

} @Override
public void windowDeactivated(WindowEvent e) {
// TODO Auto-generated method stub

}

});
factory = new MediaPlayerFactory("");
mp = factory.newDirectMediaPlayer(this, this);
mp.setVolume(100);
mp.playMedia("http://192.168.26.200:80/kuuF/687474703A2F2F6D372E6E65746B7575E636F6D2F6C786A2F74616962616E6C616E676D616E6D616E77752F30312E6D7034.mp4");
pane = new JPanel(){ /**
 * 
 */
private static final long serialVersionUID = 1L; @Override
public void paint(Graphics g) {
// TODO Auto-generated method stub
super.paint(g);
g.drawImage(frame, 0, 0, pane);
g.setColor(Color.red);
if(frame != null){
g.drawString(new Date().toLocaleString(), 0, 10);
}
}
};
add(pane);
}

@Override
public void display(DirectMediaPlayer mediaPlayer, Memory[] nativeBuffers,
BufferFormat bufferFormat) {
// TODO Auto-generated method stub
nativeBuffers[0].getByteBuffer(0L, nativeBuffers[0].size()).asIntBuffer().get(((DataBufferInt)frame.getRaster().getDataBuffer()).getData(), 0, bufferFormat.getHeight() * bufferFormat.getWidth());
pane.updateUI();
}
@Override
public BufferFormat getBufferFormat(int sourceWidth, int sourceHeight) {
// TODO Auto-generated method stub
frame = new BufferedImage(sourceWidth, sourceHeight, BufferedImage.TYPE_INT_RGB);
return new BufferFormat("RV32", sourceWidth, sourceHeight,new int[]{sourceWidth*4},new int[]{sourceHeight});
}

}
以上是vlcj实现播放器功能的代码 现在我的目标视频不是正常的视频 而是加密过的 
而加密方式已知了
但是让这种视频在线播放怎么实现没有什么思路