mqtt_finanl

VideoProsessing/src/main.cpp

@@ -20,7 +20,7 @@ VideoCapture cap(0);
 Mat handleFrame;
 const string mqtt_url = "tcp://192.168.12.1:1883";
 const string clientId = "video_subData";
-const string Topic = "/video/Data";
+const string Topic = "/video/PersonData";
 const int Qos = 1;
 mqtt::async_client client(mqtt_url, clientId);
 
@@ -57,6 +57,9 @@ int main()
         return -1;
     }
 
+    // 初始化mqtt
+    MqttInit();
+
     // 主处理循环
     mainLoop(cap, pipe);
 
@@ -90,8 +93,20 @@ void MqttInit()
 void getMsgCallback(mqtt::const_message_ptr msg)
 {
     string payload = msg->to_string();
+    cout << "Recv payload: " << payload << endl;
 
-    cout << payload << endl;
+    thread([payload]()
+           {
+        try {
+            // TODO 处理接收到到的位置数据
+        }
+        catch (const nlohmann::json::parse_error &e) {
+            cerr << "JSON 解析错误: " << e.what() << "\n原始 payload: " << payload << "\n";
+        }
+        catch (const std::exception &e) {
+            cerr << "处理消息异常: " << e.what() << "\n";
+        } })
+        .detach();
 }
 
 // 摄像头初始化
@@ -156,8 +171,18 @@ bool processFrame(VideoCapture &cap, FILE *pipe, Mat &frame, int64 &count, chron
     // 拷贝视频帧
     handleFrame = frame;
 
+    auto now_ms = chrono::system_clock::now();
+    auto timestamp = chrono::duration_cast<chrono::milliseconds>(now_ms.time_since_epoch()).count();
+    auto now_time = chrono::system_clock::to_time_t(now_ms);
+    auto ms = timestamp % 1000;
+
+    char timeStr[100];
+    struct tm *tm_info = localtime(&now_time);
+    sprintf(timeStr, "%02d:%02d:%02d.%03ld",
+            tm_info->tm_hour, tm_info->tm_min, tm_info->tm_sec, ms);
+
     // 添加提示文本
-    putText(frame, "press 'q' to quit", Point(0, 20),
+    putText(frame, timeStr, Point(0, 20),
             FONT_HERSHEY_SIMPLEX, 1.0, Scalar(0, 255, 0), 2, LINE_8);
 
     // FPS计算与显示
@@ -173,9 +198,8 @@ bool processFrame(VideoCapture &cap, FILE *pipe, Mat &frame, int64 &count, chron
     // 写入管道
     fwrite(frame.data, 1, frame.total() * frame.elemSize(), pipe);
     fflush(pipe);
-
     // 可选：显示窗口
-    // imshow("测试画面", frame);
+    imshow("测试画面", frame);
 
     return true;
 }
@@ -188,14 +212,14 @@ void mainLoop(VideoCapture &cap, FILE *pipe)
     Mat frame;
     cout << "开始视频处理循环..." << endl;
 
-    // 创建全屏窗口
-    namedWindow("处理后的画面", WINDOW_NORMAL);
-    setWindowProperty("处理后的画面", WND_PROP_FULLSCREEN, WINDOW_FULLSCREEN);
+    // // 创建全屏窗口
+    // namedWindow("处理后的画面", WINDOW_NORMAL);
+    // setWindowProperty("处理后的画面", WND_PROP_FULLSCREEN, WINDOW_FULLSCREEN);
 
-    // 获取屏幕尺寸（通过获取全屏窗口的实际大小）
-    cv::Rect windowRect = getWindowImageRect("处理后的画面");
-    int screenWidth = windowRect.width > 0 ? windowRect.width : 1920;
-    int screenHeight = windowRect.height > 0 ? windowRect.height : 1080;
+    // // 获取屏幕尺寸（通过获取全屏窗口的实际大小）
+    // cv::Rect windowRect = getWindowImageRect("处理后的画面");
+    // int screenWidth = windowRect.width > 0 ? windowRect.width : 1920;
+    // int screenHeight = windowRect.height > 0 ? windowRect.height : 1080;
 
     Mat displayFrame; // 用于存储缩放后的画面
 
@@ -206,9 +230,9 @@ void mainLoop(VideoCapture &cap, FILE *pipe)
             break;
         }
 
-        // 将 handleFrame 缩放到全屏尺寸
-        resize(handleFrame, displayFrame, Size(screenWidth, screenHeight));
-        imshow("处理后的画面", displayFrame);
+        // // 将 handleFrame 缩放到全屏尺寸
+        // resize(handleFrame, displayFrame, Size(screenWidth, screenHeight));
+        // imshow("处理后的画面", displayFrame);
         // 检测退出键
         if (cv::waitKey(1) == 'q')
         {