import java.io.IOException;

public static void main(String[] args) {

        /*String cmd = "cmd /c ffmpeg.exe -i D:\test\xyz.mov D:\test\xyz.mp4 & del D:\EP\*.cap D:\EP\*.mov /f /s /q";
        Process p = Runtime.getRuntime().exec(cmd);*/

        String cmd = "/usr/local/Cellar/ffmpeg/3.4/bin/ffmpeg -i "
                + "/Users/testuser/test/i.mov" + " " + "/Users/testuser/test/o.mov"; //+" && rm -rf "+infileName +" " +capfileName ;
                System.out.println("CMD TO EXECUTE : " + cmd);

                try {
                Process p = Runtime.getRuntime().exec(cmd);
                } catch (IOException e) {
                // TODO Auto-generated catch block
                e.printStackTrace();
                }
}