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package com.zhonglai.luhui.smart.feeder.service;
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import org.bytedeco.javacv.CanvasFrame;
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import org.bytedeco.javacv.FFmpegFrameGrabber;
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import cn.hutool.core.util.ArrayUtil;
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import cn.hutool.core.util.ReUtil;
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import cn.hutool.core.util.RuntimeUtil;
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import com.ruoyi.common.utils.StringUtils;
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import org.bytedeco.ffmpeg.global.avutil;
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import org.bytedeco.javacv.*;
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import org.bytedeco.javacv.Frame;
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import org.bytedeco.javacv.FrameGrabber;
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import org.springframework.stereotype.Service;
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import java.awt.*;
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import java.awt.image.BufferedImage;
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import java.time.LocalDateTime;
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import java.time.format.DateTimeFormatter;
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import java.util.ArrayList;
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import java.util.List;
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@Service
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public class FFmCameraService {
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public static void main(String[] args) {
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// int maxCameraIndex = 10; // 最大尝试的摄像头索引数量
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// for (int cameraIndex = 0; cameraIndex < maxCameraIndex; ++cameraIndex) {
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// try {
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// FFmpegFrameGrabber grabber = new FFmpegFrameGrabber(cameraIndex);
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// grabber.start(); // 尝试开始，如果失败将抛出异常
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// try {
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// // 创建一个窗口用于显示摄像头的视频流
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// CanvasFrame frame = new CanvasFrame("Webcam");
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//
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// // 判断窗口是否关闭
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// while (frame.isVisible()) {
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// // 抓取一帧视频并将其放在窗口上显示，该操作会阻塞程序，直到下一帧视频可用
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// Frame grabbedFrame = grabber.grab();
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// frame.showImage(grabbedFrame);
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// }
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//
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// // 关闭窗口
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// frame.dispose();
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// } finally {
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// // 停止抓取
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// grabber.stop();
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// }
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// break; // 如果找到了摄像头并成功打开，就结束循环
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// } catch (FrameGrabber.Exception e) {
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// // 如果失败，就继续尝试下一个摄像头
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// System.out.println("Failed to start the camera with device index: " + cameraIndex);
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// }
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// }
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private FFmpegFrameGrabber grabber;
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private static String MAC = "78-a6-a0-d2-bd-e1";
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/**
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* 查找摄像头
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* @return
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*/
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public String findCameraIp()
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{
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List<String> list = RuntimeUtil.execForLines("arp", "-a");
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for (String str:list)
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{
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if(str.indexOf(MAC)>=0)
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{
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// 使用Hutool提取字符串中的IP地址
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List<String> ips = ReUtil.findAll("\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}\\.\\d{1,3}", str, 0, new ArrayList<>());
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if(null != ips && ips.size()!=0)
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{
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return ips.get(0);
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}
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}
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}
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return null;
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}
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/**
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* 加载摄像头
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*/
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public void loadCamera()
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{
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String ip = findCameraIp();
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if(StringUtils.isEmpty(ip))
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{
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System.out.println("没有找到摄像头："+MAC);
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return;
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}
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String rtspUrl = "rtsp://admin:Luhui586@"+ip+":554/h264/ch1/main/av_stream";
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try {
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FFmpegFrameGrabber.tryLoad();
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} catch (Exception e) {
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throw new RuntimeException("Failed to load FFmpeg", e);
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}
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grabber = new FFmpegFrameGrabber(rtspUrl);
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grabber.setVideoOption("fflags", "nobuffer"); // 禁用缓冲
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grabber.setVideoOption("rtsp_transport", "tcp"); // 使用TCP传输
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avutil.av_log_set_level(avutil.AV_LOG_ERROR); // 设置日志级别
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try {
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grabber.start();
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} catch (Exception e) {
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close();
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e.printStackTrace();
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}
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}
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public Boolean isOk()
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{
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try {
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return null!=grabber && grabber.grab() != null;
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} catch (FrameGrabber.Exception e) {
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return false;
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}
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}
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public void close()
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{
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if(null != grabber)
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{
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try {
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grabber.stop();
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grabber.close();
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} catch (Exception e) {
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e.printStackTrace();
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}
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}
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}
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private void display(Frame frame) throws FrameGrabber.Exception {
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CanvasFrame canvasFrame = new CanvasFrame("Key Frame Capture", CanvasFrame.getDefaultGamma() / grabber.getGamma());
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canvasFrame.dispose();
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while (true) {
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canvasFrame.showImage(dream(getFrame()));
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LocalDateTime now = LocalDateTime.now();
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DateTimeFormatter formatter = DateTimeFormatter.ofPattern("yyyy-MM-dd HH:mm:ss.SSS");
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String formattedDateTime = now.format(formatter);
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System.out.println("当前时间: " + formattedDateTime);
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}
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}
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public Frame getFrame() {
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Frame frame = null;
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try {
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frame = grabber.grabImage();
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if (frame == null) {
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//TODO:连续n次为null，进行重连
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System.out.println("frame is null");
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return null;
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}
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else{
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return frame;
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}
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} catch (FrameGrabber.Exception e) {
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return null;
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}
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}
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private int maxX = 200;
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private int POINT_RADIUS = 3;
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private int quHeight = 200;
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private java.util.List<Double> points = new ArrayList<>();
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private BufferedImage dream(Frame frame)
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{
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BufferedImage image = Java2DFrameUtils.toBufferedImage(frame);
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double point = Math.random();
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points.add(point);
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if (points.size() > maxX) {
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points.remove(0);
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}
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BufferedImage curveImage = new BufferedImage(image.getWidth(), image.getHeight()+quHeight,image.getType());
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Graphics2D g2d = curveImage.createGraphics();
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// 在图像上绘制曲线
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g2d.setColor(Color.RED);
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g2d.setStroke(new BasicStroke(POINT_RADIUS));
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Double maxY = ArrayUtil.max(points.toArray(new Double[0]));
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int vx = image.getWidth()/maxX;
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Double vy = quHeight/maxY;
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// 绘制动态曲线
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for(int i=0;i<points.size()-1;i++)
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{
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int x = i*vx;
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int y = new Double(points.get(i)*vy).intValue();
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g2d.drawLine(x, y+image.getHeight(), x+vx, new Double(points.get(i+1)*vy).intValue()+image.getHeight());
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}
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// 将第一个帧绘制到合并图像的上方
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curveImage.createGraphics().drawImage(image, 0, 0, null);
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g2d.dispose();
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return curveImage;
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}
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} |
...
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...
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