通过 Java 使用 Quicktime 录制

Question

我想使用 Java 使用 Quicktime 进行录制，但是当我尝试输入文件夹和文件时出现一些问题。我虽然这可能是一个时间问题所以延迟但它仍然发生。开始录制的代码是：

public static void startQTrecord(){     
        //Activate QT
        try{
            String[] go = { "osascript", "-e", "tell application \"QuickTime Player\" to activate" };
            Process process = Runtime.getRuntime().exec(go);
            process.waitFor();

        } catch (IOException ex) {
            System.out.println(ex.toString());
        } catch (InterruptedException ex) {
            System.out.println(ex.toString());
        }    
        //Start new recording
        try{
            String[] go = { "osascript", "-e", "tell application \"QuickTime Player\" to start new movie recording" };
            Process process = Runtime.getRuntime().exec(go);
            process.waitFor();    
        } catch (IOException ex) {
            System.out.println(ex.toString());
        } catch (InterruptedException ex) {
            System.out.println(ex.toString());
        }

停止并保存的代码是：

public static void closeQT(){
        //Go to QT
        try {
            String[] go = {"osascript", "-e", "tell application \"QuickTime Player\" to activate"};
            Process process = Runtime.getRuntime().exec(go);
            process.waitFor();
        } catch (IOException ex) {
            System.out.println(ex.toString());
        } catch (InterruptedException ex) {
            System.out.println(ex.toString());
        }
        //Stop the recording
        try {
            String[] go = {"osascript", "-e", "tell application \"QuickTime Player\" to stop document \"movie recording\""};
            Process process = Runtime.getRuntime().exec(go);
            process.waitFor();
        } catch (IOException ex) {
            System.out.println(ex.toString());
        } catch (InterruptedException ex) {
            System.out.println(ex.toString());
        }
        //Save
        try {
            sleep(100);
            String[] go = {"osascript", "-e", "tell application \"System Events\" to keystroke \"s\" using {command down}", "-e", "delay 1"};         
            Process process = Runtime.getRuntime().exec(go);
        process.waitFor();
        } catch (IOException ex) {
            System.out.println(ex.toString());
        } catch (InterruptedException ex) {
            System.out.println(ex.toString());
        }
        //Enter the save directory
        try {
            sleep(100);
            String[] go = {"osascript", "-e", "tell application \"System Events\" to keystroke \"G\" using {command down, shift down}", "-e", "delay 1"};
            Process process = Runtime.getRuntime().exec(go);
            process.waitFor();
        } catch (IOException ex) {
            System.out.println(ex.toString());
        } catch (InterruptedException ex) {
                System.out.println(ex.toString());
        }
        try {
            sleep(100);
            String gofolder = "tell application \"System Events\" to keystroke \"" + folder + "\"";
            String[] go = {"osascript", "-e", gofolder, "-e", "delay 1", "-e", "tell application \"System Events\" to keystroke return", "-e", "delay 1"};
            Process process = Runtime.getRuntime().exec(go);
            process.waitFor();
        } catch (IOException ex) {
            System.out.println(ex.toString());
        } catch (InterruptedException ex) {
                System.out.println(ex.toString());
        }
        try {
            sleep(100);
            String[] go = {"osascript", "-e", "tell application \"System Events\" to keystroke\""+file+"\"", "-e", "tell application \"System Events\" to keystroke return", "-e", "delay 1"};         
            Process process = Runtime.getRuntime().exec(go);
            process.waitFor();
        } catch (IOException ex) {
            System.out.println(ex.toString());
        } catch (InterruptedException ex) {
            System.out.println(ex.toString());
        }
        /////////////////////////////////////////////
        //Wait for save then quit
        boolean keepWaiting = true;
        while(keepWaiting){
            try{
                Runtime rt = Runtime.getRuntime();
                String[] commands = {"osascript", "-e", "delay 5", "-e", "tell application \"QuickTime Player\" to quit"};
                Process proc = rt.exec(commands);
                proc.waitFor();
                BufferedReader stdError = new BufferedReader(new InputStreamReader(proc.getErrorStream()));
                String s = null;
                // read any errors from the attempted command
                if(stdError.readLine() == null){keepWaiting = false;}
            } catch (IOException ex) {
                System.out.println(ex.toString());
            } catch (InterruptedException ex) {
                System.out.println(ex.toString());
            }
        }

    }

有时它工作正常，但有时它会进入文件夹 window 而不是粘贴到正确的文本中。

关于为什么这不起作用或者是否有更好的方法的任何想法？

谢谢！

Answer 1

最好使用 appleScript 的 save 命令而不是使用 keystroke 命令

public static void closeQT(){
        //Pause the recording, save and quit
        try {
            String[] go = {"osascript", "-e", "set tFile to \""+fullPosixPathOfFile+"\" as posix file", "-e", "do shell script \"touch \" & quoted form of posix path of tFile", "-e", "tell application \"QuickTime Player\"", "-e", "pause document 1", "-e", "save document 1 in tFile", "-e", "stop document 1", "-e", "close document 1 saving no", "-e", "quit", "-e", "end tell"};
            Process process = Runtime.getRuntime().exec(go);
            process.waitFor();
        } catch (IOException ex) {
            System.out.println(ex.toString());
        } catch (InterruptedException ex) {
            System.out.println(ex.toString());
        }
    }

将要保存电影的文件路径放入fullPosixPathOfFile变量

这是一个有效的 AppleScript 示例

set tFile to (path to desktop folder as string) & "MyMovie.mov" -- save the movie to the desktop

do shell script "touch " & quoted form of POSIX path of tFile  --  "QuickTime Player" need an existing file (otherwise permissions issue), so the touch command create an empty file 
tell application "QuickTime Player"
    launch
    set newMovieRec to new movie recording
    tell newMovieRec
        start
        delay 10 -- duration in seconds of this new movie
        pause
        save in (file tFile) -- The term "file" is necessary when the type of the path is HFS (path with colon character --> "diskName:folder1:subFolder2:myMovie.mov")
        --save in tFile -- use this line when the tFile variable contains a posix file (a posix path converted to a posix file)
        stop
        close saving no
    end tell
    quit
end tell

检查Quicktime的版本：

tell application "QuickTime Player"
    set v to version
    considering numeric strings
        set newVersion to v > "7.6.6" -- change it to the old version which not work
    end considering
    if newVersion then
        -- code to save
    else
        -- code to save as
    end if
end tell

通过 Java 使用 Quicktime 录制

Recording with Quicktime through Java

java

applescript

quicktime