java JMF的使用(二)

2014-11-24 09:09:54 · 作者: · 浏览: 1
erformed(ActionEvent arg0) {
mediaPlayerCurrent.stop();
Buffer bufferFrame;
BufferToImage bufferToImage;
Image image;
BufferedImage bi;
controlGrabber = (FrameGrabbingControl) mediaPlayerCurrent
.getControl("javax.media.control.FrameGrabbingControl");
bufferFrame = controlGrabber.grabFrame();
bufferToImage = new BufferToImage((VideoFormat) bufferFrame
.getFormat());
image = bufferToImage.createImage(bufferFrame);
File out = new File("capture" + (++captureCount) + ".png");
try {
bi = toBufferedImage(image);
ImageIO.write(bi, "png", out);
} catch (IOException e1) {
e1.printStackTrace();
}
mediaPlayerCurrent.start();
}
});
controlPanel.add(BorderLayout.CENTER, capture);
JButton playStop = new JButton("stop");
// add(BorderLayout.SOUTH,playControl);
playStop.addActionListener(new ActionListener() {
// @Override
public void actionPerformed(ActionEvent arg0) {
mediaPlayerCurrent.stop();
}
});
controlPanel.add(BorderLayout.EAST, playStop);
JButton playStart = new JButton("start");
// add(BorderLayout.SOUTH,playControl);
playStart.addActionListener(new ActionListener() {
// @Override
public void actionPerformed(ActionEvent arg0) {
// mediaPlayerCurrent.stop();
if (mediaPlayerCurrent.getState() != mediaPlayerCurrent.Started) {
mediaPlayerCurrent.start();
}
}
});
controlPanel.add(BorderLayout.WEST, playStart);
addWindowListener(new WindowAdapter() {
// @Override
public void windowClosing(WindowEvent e) {
mediaPlayerCurrent.close();
dataSource.disconnect();
System.out.println("exit.....");
System.exit(0);
}
});
}
public static boolean hasAlpha(Image image) {
// If buffered image, the color model is readily available
if (image instanceof BufferedImage) {
BufferedImage bimage = (BufferedImage) image;
return bimage.getColorModel().hasAlpha();
}
// Use a pixel grabber to retrieve the image's color model;
// grabbing a single pixel is usually sufficient
PixelGrabber pg = new PixelGrabber(image, 0, 0, 1, 1, false);
try {
pg.grabPixels();
} catch (InterruptedException e) {
}
// Get the image's color model
ColorModel cm = pg.getColorModel();
return cm.hasAlpha();
}
public static BufferedImage toBufferedImage(Image image) {
if (image instanceof BufferedImage) {
return (BufferedImage) image;
}
// This code ensures that all the pixels in the image are loaded
image = new ImageIcon(image).getImage();
// Determine if the image has transparent pixels; for this method's
// implementation, see e661 Determining If an Image Has Transparent
// Pixels
boolean hasAlpha = hasAlpha(image);
// Create a buffered image with a format that's compatible with the
// screen
BufferedImage bimage = null;
GraphicsEnvironment ge = GraphicsEnvironment
.getLocalGraphicsEnvironment();
try {
// Determine the type of transparency of the new buffered image
int transparency = Transparency.OPAQUE;
if (hasAlpha) {
transparency = Transparency.BITMASK;
}
// Create the buffered image
GraphicsDevice gs = ge.getDefaultScreenDevice();
GraphicsConfiguration gc = gs.getDefaultConfiguration();
bimage = gc.createCompatibleImage(image.getWidth(null), image
.getHeight(null), transparency);
} catch (HeadlessException e) {
// The system does not have a screen
System.err.println("The system does not have a screen!");
System.exit(-1);
}
if (bimage == null) {
// Create a buffered image using the default color model
int type = BufferedImage.TYPE_INT_RGB;
if (hasAlpha) {
type = BufferedImag