录制屏幕和网络摄像头到视频文件
我正尝试创建一个应用程序来记录用户的屏幕或来自网络摄像机的视频并保存到视频文件中。
我尝试使用Java Media Framework来使其工作，但在Windows 64位中失败。 我发现Java Media Framework比较老，现在不支持:(
我的问题是：是否有其他图书馆帮助我们记录网络摄像头的屏幕和视频？ 如果不支持Java，什么语言可以提供帮助？
我发现一些应用程序具有相同的功能：+ http://www.screencast-o-matic.com/ + http://www.apowersoft.com/free-online-screen-recorder它是用户可以从服务器下载的Java小程序没有安装。
先进的谢谢！
更新：我在HTML5中找到另一个解决方案
更新： 2013/07/05 **我发现WebRTC 1.0可以达到解决方案，但Google Chrome尚未支持Media Stream Recorder。
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;
}
}
}