rstp截图优化

src/main/java/com/zhgd/xmgl/util/RtspUtils.java

@@ -1,5 +1,6 @@
 package com.zhgd.xmgl.util;
 
+import liquibase.pro.packaged.O;
 import lombok.extern.slf4j.Slf4j;
 import org.bytedeco.javacv.FFmpegFrameGrabber;
 import org.bytedeco.javacv.Frame;
@@ -35,7 +36,7 @@ public class RtspUtils {
     /**
      * 遍历500次确保实时图片显示正常图片
      */
-    private static int COUNT = 100;
+    private static int COUNT = 500;
 
     /**
      * 解析视频地址并截图
@@ -45,6 +46,7 @@ public class RtspUtils {
      * @throws Exception
      */
     public static void getVideoImagePathByRSTP(String path, String picPath) throws Exception {
+        boolean have = false;
         //创建rstp流对象
         FFmpegFrameGrabber grabber = createGrabber(path);
         try {
@@ -70,9 +72,13 @@ public class RtspUtils {
                     File file = new File(picPath);
                     //输出文件
                     ImageIO.write(bufferedImage, "jpg", file);
+                    have = true;
                     break;
                 }
             }
+            if (!have) {
+                throw new RuntimeException("rstp截取图像失败");
+            }
         } finally {
             grabber.stop();
             grabber.close();