How to get Video plugged to MY PC via the Network socket

I got a camera, plugged to my PC via the network socket. I do not know how to set the source stream!

this is the code I wrote before to set the source of a file and play video,

Code:

void PlayVideo::rollOn()
{
 
    media = new Phonon::MediaObject(movieLabel);
    media->setCurrentSource(Phonon::MediaSource(QString("/home/saman/4.7/phonon_test/sample.mp4")));
    //media->setCurrentSource (Phonon::MediaSource());
    videoPlayer = new Phonon::VideoPlayer(Phonon::VideoCategory, movieLabel);
    videoPlayer->setFixedSize(QSize(400, 300));
    videoPlayer->show();
 
    connect(videoPlayer, SIGNAL(finished()), videoPlayer, SLOT(deleteLater()));
    videoPlayer->play(media->currentSource());
}

could anyone tell me how to change the source stream so that I can get video via
network socket?

this is the sample code of getting packet via network, i don't know how to buffer the received data
and send it as a source stream to phonon video.

Code:

void PlayVideo::rollOn()
{
 
    udpSocketin = new QUdpSocket(this);
 
    udpSocketin->bind(localPort);
 
    connect(udpSocketin, SIGNAL(readyRead()),this, SLOT(readDatagrams()));
 
    QDataStream out(&datagramout, QIODevice::WriteOnly);
 
    out.setVersion (QDataStream::Qt_4_7);
 
    timer2 = new QTimer(this);
 
    connect(timer2, SIGNAL(timeout()), this, SLOT(playbuff()));
 
    media = new Phonon::MediaObject(movieLabel);
 
    media->setCurrentSource(Phonon::MediaSource(QString("/home/saman/4.7/phonon_test/sample.mp4")));
 
    //media->setCurrentSource (Phonon::MediaSource());
 
    videoPlayer = new Phonon::VideoPlayer(Phonon::VideoCategory, movieLabel);
 
    videoPlayer->setFixedSize(QSize(400, 300));
 
    videoPlayer->show();
 
    connect(videoPlayer, SIGNAL(finished()), videoPlayer, SLOT(deleteLater()));
 
    videoPlayer->play(media->currentSource());
}
 
void PlayVideo::readDatagrams()
{
    if(udpSocketin->hasPendingDatagrams ())
    {
        datagramin.resize (udpSocketin->pendingDatagramSize ());
 
        qint64 receiveBytes = udpSocketin->readDatagram (datagramin.data (), datagramin.size ());
 
        if(receivedBytes <= 0)
        {
            qDebug("receivedBytes <= 0");
        }
    }
}