修复工作

ruoyi-video/src/main/java/com/ruoyi/video/thread/MediaTransferFlvByJavacv.java

@@ -214,6 +214,8 @@ public class MediaTransferFlvByJavacv extends MediaTransfer implements Runnable
     /** ================ 构造函数与初始化 ================ */
     public MediaTransferFlvByJavacv(CameraDto camera) {
         cameraDto = camera;
+        running = true;  // 初始化为 true，准备启动
+        log.info("🎥 创建 JavaCV 媒体传输器: {}", camera.getUrl());
     }
 
     public void setRun(boolean run) {