Java OpenCV保存视频文件

import org.opencv.core.Core;
import org.opencv.core.Mat;
import org.opencv.core.Size;
import org.opencv.highgui.HighGui;
import org.opencv.imgcodecs.Imgcodecs;
import org.opencv.videoio.VideoCapture;
import org.opencv.videoio.VideoWriter;

public class VideoCaptureExample {
    static {
        // 加载 OpenCV 本地库
        System.loadLibrary(Core.NATIVE_LIBRARY_NAME);
    }

    public static void main(String[] args) {
        // 打开摄像头
        VideoCapture camera = new VideoCapture(0);
        if (!camera.isOpened()) {
            System.out.println("Error: Could not open video device.");
            return;
        }

        // 获取摄像头的分辨率
        int width = (int) camera.get(VideoCapture.CAP_PROP_FRAME_WIDTH);
        int height = (int) camera.get(VideoCapture.CAP_PROP_FRAME_HEIGHT);

        // 创建 VideoWriter 对象
        String outputFilePath = "output.mp4";
        VideoWriter videoWriter = new VideoWriter(outputFilePath, VideoWriter.fourcc('X', '2', '6', '4'), 30, new Size(width, height));

        if (!videoWriter.isOpened()) {
            System.out.println("Error: Could not open the output video file for writing.");
            return;
        }

        Mat frame = new Mat();
        while (true) {
            // 读取一帧
            if (!camera.read(frame)) {
                System.out.println("Error: Could not read frame.");
                break;
            }

            // 写入帧到视频文件
            videoWriter.write(frame);

            // 显示帧
            HighGui.imshow("Video", frame);

            // 按 'q' 键退出循环
            if (HighGui.waitKey(1) == 'q') {
                break;
            }
        }

        // 释放资源
        camera.release();
        videoWriter.release();
        HighGui.destroyAllWindows();
    }
}