Java 录制屏幕的速度不够快

Question

我正在尝试用 Java 制作一个录音程序。我不想使用 JMF(Java 媒体框架)以外的任何外部库。我正在使用两个 Swing 计时器(作为一个 Swing 应用程序)，一个用于捕获屏幕并将其添加到队列中，另一个用于将 BufferedImage 从队列中取出并将其写入文件。这是我的计时器: 插入队列:

timer = new Timer(1000/FPS, new ActionListener() { //FPS is a user-inputed value from 1-60 by default its 25
        @Override
        public void actionPerformed(ActionEvent ae) {
            executor.execute(new Runnable() { //executor is a java.util.concurrent.Executor;
                //I put them in an executor so the timer wouldn't wait for the code to finish
                @Override
                public void run() {
                    try {
                        images.insert(R.createScreenCapture(Screen)); //Images is my own queue & R is a java.awt.Robot
                        //Screen is a rectangle that is Toolkit.getDefaultToolkit().getScreenSize()
                    } catch (Exception e) {
                        ExceptionPrinter.PrintE(e); //This is just a method to print the exception to me
                        System.out.print(images.length());
                        timer.stop();
                        timer2.stop();
                    } catch (OutOfMemoryError e) { //This is mainly a debug catch
                        timer.stop();
                        timer2.stop();
                        System.out.print(images.length());
                        e.printStackTrace();
                    }
                }
            });
        }
    });

写入图像:

timer2 = new Timer(1000 / FPS, new ActionListener() {
        @Override
        public void actionPerformed(ActionEvent ae) {
            executor.execute(new Runnable() {
                @Override
                public void run() {
                    try {
                        if (images.length() != 0) {
                            if (!(new File("C:").getFreeSpace() <= 10000000)) {
                                String path=AppRunner.AppR3Directory + "VideoTemp" + File.pathSeparator + file + getModifier() + File.pathSeparator + image + ".JPEG";
                                //AppRunner.AppR3Directory is the working directory of the program (never changes)
                                //file is the user-inputed filename & getModifier() is either "" or a number above 0 (for when the program auto-starts another record)
                                ImageIO.write(images.pop(), "JPEG", new java.io.File(path));
                                imagelist.add(path); //This adds it to my list of images for when i change it to a .mov (custom array)
                                image++;
                            } else {
                                throw new SecurityException("Not enough memory!");
                            }
                        }
                    } catch (IOException e) {
                        ExceptionPrinter.PrintE(e);
                        timer.stop();
                        timer2.stop();
                    } catch (SecurityException e) {
                        ExceptionPrinter.PrintE(e);
                        timer.stop();
                        timer2.stop();
                    }
                }
            });

我的问题是它的记录速度似乎不够快。例如，默认值为 25 FPS，我只能得到 6 FPS。我尝试过更改许多不同的东西并在整个互联网上进行搜索，但我找不到解决方案。我想找出我在让它足够快地记录方面不正确的地方。提前感谢任何解决这个问题的人(我已经坚持了三天)。

编辑:我确实计划将其更改为一个计时器并使用一种方法来写入(由于写入延迟，我最初有两个)，如 SimonC 所说。

Answer 1

试试 Monte Media Library screen recorder .我上次测试时得到了很好的结果。

Windows Media Player says it can't open it..

AFAIR WMP 用所有 MOV 表示。相当恼人，因为它声称文件关联。用不是 WMP 的播放器试试。

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从长远来看，您会希望将 MOV 转换为另一种格式。使用 JMF 生产的那些巨大。