java代码如何对视频截图呢?

实现思路:
    借助ffmpeg.exe这个程序可以对视频进行指定帧进行截图操作

import java.io.File;
import java.util.list;
//生成视频文件的首帧为图片
//windows下的版本
public class CreatePh {
	//public static final String FFMPEG_PATH = "F:/ffmpeg/ffmpeg.exe";
	 public static boolean processImg(String veido_path,String ffmpeg_path) {
	File file = new File(veido_path);
	if (!file.exists()) {
	System.err.println("路径[" + veido_path + "]对应的视频文件不存在!");
	return false;
	}
	List<String> commands = new java.util.ArrayList<String>();
	commands.add(ffmpeg_path);
	commands.add("-i");
	commands.add(veido_path);
	commands.add("-y");
	commands.add("-f");
	commands.add("image2");
	commands.add("-ss");
	commands.add("8");//这个参数是设置截取视频多少秒时的画面
	//commands.add("-t");
	//commands.add("0.001");
	commands.add("-s");
	commands.add("700x525");
	commands.add(veido_path.substring(0, veido_path.lastIndexOf("."))
     .replaceFirst("vedio", "file") + ".jpg");
	try {
	ProcessBuilder builder = new ProcessBuilder();
	builder.command(commands);
	builder.start();
	System.out.println("截取成功");
	return true;
	} catch (Exception e) {
	e.printStackTrace();
	return false;
	}
	}
	 public static void main(String[] args) { 
		 processImg("E:/test.avi","F:/ffmpeg/ffmpeg.exe");
	 }
}