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视频流截取保存到本地路径（打包jar包CMD运行）

news 2025/8/23 3:08:11

需求：

现在有一批https的监控视频流URL，需要对视频流进行每三秒截屏一次，并保存到本地路径，png格式，以当前时间命名。

代码：

import org.bytedeco.javacv.FFmpegFrameGrabber;
import org.bytedeco.javacv.Frame;
import org.bytedeco.javacv.Java2DFrameConverter;import javax.imageio.ImageIO;
import java.awt.image.BufferedImage;
import java.io.File;
import java.io.IOException;
import java.text.SimpleDateFormat;
import java.util.Date;public class Main {public static void main(String[] args) throws IOException {//视频路径URLString file = "https://os7.com/v3/openlive/K95.m3u8?expire=1731&id=5658&ev=100";FFmpegFrameGrabber grabber = FFmpegFrameGrabber.createDefault(file);grabber.setOption("rtsp_transport", "tcp"); // 使用tcp的方式，不然会丢包很严重// grabber.setImageWidth(1920);// grabber.setImageHeight(1080);// 设置采集器构造超时时间(单位微秒，1秒=1000000微秒)grabber.setOption("stimeout", "9000000");System.out.println("grabber start");grabber.start();//1.播放视频
/*CanvasFrame canvasFrame = new CanvasFrame("摄像机");canvasFrame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);canvasFrame.setAlwaysOnTop(true);OpenCVFrameConverter.ToMat converter = new OpenCVFrameConverter.ToMat();while (true){Frame frame = grabber.grabImage();opencv_core.Mat mat = converter.convertToMat(frame);canvasFrame.showImage(frame);}*/// 2.帧截图while (true) {try {Date date = new Date();SimpleDateFormat dateFormat = new SimpleDateFormat("yyyy-MM-dd-hh-mm-ss");System.out.println("当前时间" + dateFormat.format(date));File outPut = new File("D:\\截屏\\截取1\\" + dateFormat.format(date) + ".png");Frame frame = grabber.grabImage();if (frame != null) {/*** 发送post请求*/
//            try {
//                HttpUtil.doPostToJson("http://sc.dev-forestrycloud.cn/detect",frame);
//            } catch (Exception e) {
//                throw new RuntimeException(e);
//            }ImageIO.write(FrameToBufferedImage(frame), "png", outPut);System.out.println("图片已保存");}//睡眠三秒钟Thread.currentThread().sleep(3000);} catch (InterruptedException e) {// TODO Auto-generated catch blockgrabber.stop();grabber.release();e.printStackTrace();}}}/*** 创建BufferedImage对象*/public static BufferedImage FrameToBufferedImage(Frame frame) {Java2DFrameConverter converter = new Java2DFrameConverter();BufferedImage bufferedImage = converter.getBufferedImage(frame);
//        bufferedImage=rotateClockwise90(bufferedImage);return bufferedImage;}/*** 处理图片，将图片旋转90度。*/
//    public static BufferedImage rotateClockwise90(BufferedImage bi) {
//        int width = bi.getWidth();
//        int height = bi.getHeight();
//        BufferedImage bufferedImage = new BufferedImage(height, width, bi.getType());
//        for (int i = 0; i < width; i++)
//            for (int j = 0; j < height; j++)
//                bufferedImage.setRGB(j, i, bi.getRGB(i, j));
//        return bufferedImage;
//    }
}

这是一个Maven工程，还需要在pom文件导入如下依赖

        <dependency><groupId>org.bytedeco</groupId><artifactId>javacv-platform</artifactId><version>1.4.4</version></dependency>

运行

打包（jar包）

由于IDAE太吃内存了，截取视频流需要挂在后台一直跑，我们打包丢在cmd里跑

因为在Maven中引入了依赖，所以打包前要在pom文件加入如下build

    <build><plugins><plugin><groupId>org.apache.maven.plugins</groupId><artifactId>maven-assembly-plugin</artifactId><version>2.5.5</version><configuration><archive><manifest><mainClass>com.yj.TCPClient.upload.App</mainClass></manifest></archive><descriptorRefs><descriptorRef>jar-with-dependencies</descriptorRef></descriptorRefs></configuration><!-- 添加此项后，可直接使用mvn package | mvn install --><!-- 不添加此项，需直接使用mvn package assembly:single --><executions><execution><id>make-assembly</id><phase>package</phase><goals><goal>single</goal></goals></execution></executions></plugin></plugins>
</build>

直接使用Maven进行package