我正在使用以下代码在JFrame上播放视频。 Java代码可以很好地在JFrame上播放视频,但问题是它播放视频的速度太快(可能是2倍的速度)。

package swingplayvideo;

import java.awt.Graphics;
import java.awt.Image;
import java.awt.image.BufferedImage;

import javax.swing.JFrame;
import javax.swing.SwingUtilities;

import com.xuggle.mediatool.IMediaReader;
import com.xuggle.mediatool.MediaListenerAdapter;
import com.xuggle.mediatool.ToolFactory;
import com.xuggle.mediatool.event.IVideoPictureEvent;

public class SwingPlayVideo
{

  public static void main(String[] args)
  {
    String sourceUrl = "C:\\MVI_4896.MOV";

    SwingPlayVideo videoPlayer = new SwingPlayVideo();
    videoPlayer.play(sourceUrl);
  }

  public void play(String sourceUrl)
  {
    IMediaReader reader = ToolFactory.makeReader(sourceUrl);
    reader.setBufferedImageTypeToGenerate(BufferedImage.TYPE_3BYTE_BGR);

    final MyVideoFrame frame = new MyVideoFrame();
    frame.setExtendedState(JFrame.MAXIMIZED_BOTH);

    MediaListenerAdapter adapter = new MediaListenerAdapter()
    {
      @Override
      public void onVideoPicture(IVideoPictureEvent event)
      {

        frame.setImage((BufferedImage) event.getImage());
      }
    };
    reader.addListener(adapter);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);

    while (reader.readPacket() == null)
      do {} while(false);
  }

  private class MyVideoFrame extends JFrame
  {
    Image image;

    public void setImage(final Image image)
    {
      SwingUtilities.invokeLater(new Runnable()
      {
        public void run()
        {
          MyVideoFrame.this.image = image;
          repaint();
        }
      });
    }

    @Override
    public synchronized void paint(Graphics g)
    {
      if (image != null)
      {
        g.drawImage(image, 0, 0, null);
      }
    }
  }
}


使用xuggle xuggler时是否可以正常速度播放视频?

最佳答案

仅查看我最近在Xuggle上看到的内容,看来您可能缺少睡眠功能。帧速率应通过休眠来控制:

Thread.sleep((long) (1000 / FRAME_RATE));  //where FRAME_RATE is your desired FPS


话虽这么说,但我对您在这里使用的方法不太熟悉,但是如果可以猜测的话,似乎可能需要将其添加到空的while循环中。

10-05 23:25