Hello
I am new here. Being looking everywhere to see if I could find an answer to my problem. So here is my problem: I am trying to make a UDP Connection and receive a video stream from a port. I have been referencing to the Qt examples with QUdpSockets and such. The problem is that the program does not seem to be going into the class slot function when I make a connection. I also have to implement this UDP connection using threads because I need to be able to constantly receive the live stream video while doing other stuff in a GUI.

Can anyone please help??

Here is my code:
UdpThread.h
Qt Code: 
  1. #ifndef UDPTHREAD
  2. #define UDPTHREAD
  3.  
  4. #include <QtCore>
  5. #include <QHostAddress>
  6. #include <QUdpSocket>
  7. #include <QByteArray>
  8. #include <QPixmap>
  9. #include <QObject>
  10. #include <QBuffer>
  11. #include <QFile>
  12. #include <QThread>
  13.  
  14. class QUdpSocket;
  15.  
  16. class UdpThread : public QObject
  17. {
  18.   Q_OBJECT
  19.   public:
  20.    UdpThread();
  21.  
  22. public slots:
  23.    void run();
  24.  
  25.   private:
  26.     QUdpSocket *udpSocket;
  27.     void processTheDatagram(QByteArray);
  28.  
  29.   private slots:
  30.         void readPackages();
  31.  
  32. };
  33. #endif
To copy to clipboard, switch view to plain text mode 

UdpThread.cpp
Qt Code: 
  1. #include <QtGui>
  2. #include <QtNetwork>
  3. #include "UdpThread.h"
  4.  
  5. //Constructor
  6. UdpThread::UdpThread()
  7. {
  8.  
  9. }
  10.  
  11. void UdpThread::run()
  12. {
  13.   printf("run test\n");
  14.   udpSocket = new QUdpSocket(this);
  15.    printf("testing 1 more time\n");
  16.  
  17.   udpSocket->bind(QHostAddress::LocalHost, 5555);
  18.  
  19.   //SLOT(readPackages())  Does not get executed
  20.   connect(udpSocket, SIGNAL(readyRead()), this, SLOT(readPackages()), Qt::DirectConnection);
  21. }
  22.  
  23. //reading data from the port
  24. void UdpThread::readPackages()
  25. {
  26.   printf("before test\n"); //Never gets printed or called!
  27.   while(udpSocket->hasPendingDatagrams())
  28.   {
  29.     QByteArray datagram;
  30.     datagram.resize(udpSocket->pendingDatagramSize());
  31.     udpSocket->readDatagram(datagram.data(), datagram.size()/**, &sender, &senderPort**/);
  32.     printf("in while test\n");
  33.     processTheDatagram(datagram);
  34.   }
  35. }
  36.  
  37. //display the data into an image
  38. void UdpThread::processTheDatagram(QByteArray qba)
  39. {
  40.   QPixmap image;
  41.   image.loadFromData(qba);
  42.   image.save("test", "JPG");
  43.   printf("file test\n");
  44. }
To copy to clipboard, switch view to plain text mode 

main.cpp
Qt Code: 
  1. #include <QApplication>
  2.  
  3. #include "UdpThread.h"
  4.  
  5. int main(int argc, char **argv)
  6. {
  7. 	QApplication app(argc, argv);
  8.  
  9. 	QThread *p = new QThread;
  10. 	UdpThread *uThread = new UdpThread;
  11. 	p->start();
  12. 	uThread->moveToThread(p);
  13. 	QObject::connect(p, SIGNAL(started()), uThread, SLOT(run()));
  14. 	return app.exec();
  15. }
To copy to clipboard, switch view to plain text mode 


Thanks for the help.