如何在Java中获取mp4-Movie的单个图像

   <dependency>
       <groupId>org.bytedeco</groupId>
       <artifactId>javacv-platform</artifactId>
       <version>1.5.7</version>
    </dependency>
</dependencies>

dependencies {
    implementation 'org.bytedeco:javacv-platform:1.5.7'
}

import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.Java2DFrameConverter;
import org.bytedeco.javacv.OpenCVFrameConverter;

import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;

public class VideoToImage {

    public static void main(String[] args) throws IOException {
        String videoPath = "path/to/your/video.mp4";
        String outputImagePath = "path/to/output/image.jpg";
        int frameNumber = 10; // 要提取的帧数，从0开始计数

        try (FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(videoPath)) {
            grabber.start();
            Frame frame = grabber.grabImage();

            if (frame != null) {
                OpenCVFrameConverter.ToMat converterToMat = new OpenCVFrameConverter.ToMat();
                org.opencv.core.Mat mat = converterToMat.convert(frame);

                Java2DFrameConverter converterToImage = new Java2DFrameConverter();
                BufferedImage image = converterToImage.convert(mat);

                ImageIO.write(image, "jpg", new File(outputImagePath));
            }
        }
    }
}