added UDP conexion between tello-vision and Simulink

tello-vision.cpp

 #include "opencv2/opencv.hpp"
 #include <iostream>
 
+#include <stdlib.h> 
+#include <unistd.h> 
+#include <string.h> 
+#include <sys/types.h> 
+#include <sys/socket.h> 
+#include <arpa/inet.h> 
+#include <netinet/in.h> 
+
+#define PORT    11112 
+#define MAXLINE 1024 
+
 using namespace cv;
 
 int main(int argc, char** argv) {
 
+    int sockfd; 
+    char buffer[MAXLINE]; 
+    char hello[] = "x:12;y:34;";
+    struct sockaddr_in servaddr, cliaddr; 
+
+    // Creating socket file descriptor 
+    if ( (sockfd = socket(AF_INET, SOCK_DGRAM, 0)) < 0 ) { 
+        perror("socket creation failed"); 
+        exit(EXIT_FAILURE); 
+    } 
+
+    memset(&servaddr, 0, sizeof(servaddr)); 
+    memset(&cliaddr, 0, sizeof(cliaddr)); 
+
+    // Filling server information 
+    servaddr.sin_family    = AF_INET; // IPv4 
+    servaddr.sin_addr.s_addr = INADDR_ANY; 
+    servaddr.sin_port = htons(PORT+1);
+
+    // Filling cliaddr information 
+    cliaddr.sin_family    = AF_INET; // IPv4 
+    cliaddr.sin_addr.s_addr = INADDR_ANY; 
+    cliaddr.sin_port = htons(PORT);
+
+    // Bind the socket with the server address 
+    if ( bind(sockfd, (const struct sockaddr *)&servaddr,  
+            sizeof(servaddr)) < 0 ) { 
+        perror("bind failed"); 
+        exit(EXIT_FAILURE); 
+    } 
+
+    int len, n; 
+
     Mat frame;
 
     VideoCapture cap("udp://127.0.0.1:11111",CAP_FFMPEG);
@@ -17,6 +61,10 @@ int main(int argc, char** argv) {
 
         imshow("tello vision", frame);
 
+        sendto(sockfd, (const char *)hello, strlen(hello),  
+            0, (const struct sockaddr *) &cliaddr, 
+            sizeof(cliaddr)); 
+
         if ( frame.empty() ) break; // end of video stream
 
         if( waitKey(10) == 27 ) break; // stop capturing by pressing ESC