视频流截取保存到本地路径（打包jar包CMD运行）

news2024/11/25 0:39:12

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URL
        String 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 block
                grabber.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