recording screen and webcam to video file
I'm trying to create an application to record screen of user or from webcam and save into an video file.
I tried Java Media Framework to make it work but It's fail in Windows 64 bit. I found that Java Media Framework is quite old and it isn't supported now :(
My question is: Are there any another library help us record screen and video from Webcam ? If Java is not supported, What language could help?
I found some application have same feature: + http://www.screencast-o-matic.com/ + http://www.apowersoft.com/free-online-screen-recorder It's java applet that user can download from server without installing.
Thank you in advanced !
Update: I'm finding another solution in HTML5
Update: 2013/07/05** I found WebRTC 1.0 can reach the solution but Google Chrome hasn't suport Media Stream Recorder yet.
我有一个示例代码来使用com.xuggle包来记录屏幕
import java.awt.AWTException;
import java.awt.Dimension;
import java.awt.Rectangle;
import java.awt.Robot;
import java.awt.Toolkit;
import java.awt.image.BufferedImage;
import java.util.concurrent.TimeUnit;
import com.xuggle.mediatool.IMediaWriter;
import com.xuggle.mediatool.ToolFactory;
import com.xuggle.xuggler.ICodec;
public class ScreenRecordingExample {
private static final double FRAME_RATE = 50;
private static final int SECONDS_TO_RUN_FOR = 20;
private static final String outputFilename = "c:/mydesktop.mp4";
private static Dimension screenBounds;
public static void main(String[] args) {
// let's make a IMediaWriter to write the file.
final IMediaWriter writer = ToolFactory.makeWriter(outputFilename);
screenBounds = Toolkit.getDefaultToolkit().getScreenSize();
// We tell it we're going to add one video stream, with id 0,
// at position 0, and that it will have a fixed frame rate of FRAME_RATE.
writer.addVideoStream(0, 0, ICodec.ID.CODEC_ID_MPEG4,
screenBounds.width/2, screenBounds.height/2);
long startTime = System.nanoTime();
for (int index = 0; index < SECONDS_TO_RUN_FOR * FRAME_RATE; index++) {
// take the screen shot
BufferedImage screen = getDesktopScreenshot();
// convert to the right image type
BufferedImage bgrScreen = convertToType(screen,
BufferedImage.TYPE_3BYTE_BGR);
// encode the image to stream #0
writer.encodeVideo(0, bgrScreen, System.nanoTime() - startTime,
TimeUnit.NANOSECONDS);
// sleep for frame rate milliseconds
try {
Thread.sleep((long) (1000 / FRAME_RATE));
}
catch (InterruptedException e) {
// ignore
}
}
// tell the writer to close and write the trailer if needed
writer.close();
}
public static BufferedImage convertToType(BufferedImage sourceImage, int targetType) {
BufferedImage image;
// if the source image is already the target type, return the source image
if (sourceImage.getType() == targetType) {
image = sourceImage;
}
// otherwise create a new image of the target type and draw the new image
else {
image = new BufferedImage(sourceImage.getWidth(),
sourceImage.getHeight(), targetType);
image.getGraphics().drawImage(sourceImage, 0, 0, null);
}
return image;
}
private static BufferedImage getDesktopScreenshot() {
try {
Robot robot = new Robot();
Rectangle captureSize = new Rectangle(screenBounds);
return robot.createScreenCapture(captureSize);
}
catch (AWTException e) {
e.printStackTrace();
return null;
}
}
}
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