//Event raised whenever the timer runs out
private void getRTPPacket(Object source, ElapsedEventArgs e)
{
//Gets the most recent packet
RTPPacketStuff rtpPacketStuff = _rtpModel.getRTPPacket();
//Checks to make sure a packet was returned
if (rtpPacketStuff != null)
{
//Get packet information
string packetReport = rtpPacketStuff.getPacketReport();
byte[] packetHeader = rtpPacketStuff.getPacketHeader();
byte[] packetContents = rtpPacketStuff.getPacketContents();
//Print packet report
if (_view.printPacketReport())
{
_view.updateClientStatusText(packetReport);
}
//Print header
if (_view.printHeader())
{
string byteString = "";
foreach (byte b in packetHeader)
{
byteString += Convert.ToString(b, 2).PadLeft(8, '0');
byteString += " ";
}
_view.updateClientStatusText(byteString);
}
//Get image and resize
int maxwidth = 450;
int maxheight = 230;
ImageConverter imageConverter = new ImageConverter();
Image image = (Image)(imageConverter.ConvertFrom(packetContents));
if (image.Width > maxwidth | image.Height > maxheight)
{
Bitmap bitmap = new Bitmap(maxwidth, maxheight);
using (Graphics graphics = Graphics.FromImage((Image)bitmap))
graphics.DrawImage(image, 0, 0, maxwidth, maxheight);
image = bitmap;
}
//Print packet contents to screen in view
_view.updatePictureBox(image);
}
}
//Listen loop to listen for new RTP packets
public void listen(EventHandler callback, ref bool paused)
{
//Loop to listen for rtp packets
while (true)
{
byte[] receiveBytes = new byte[100000];
try {
if (!paused)
{
//Receive rtp packets
int numBytes = _rtpSocket.Receive(receiveBytes);
Console.WriteLine(numBytes);
//Parse packet
RTP_Packet rtpPacket = new RTP_Packet(receiveBytes, numBytes);
string packetReport = rtpPacket.getPacketReport();
byte[] packetHeader = rtpPacket.getPacketHeader();
byte[] packetContents = rtpPacket.getPacketContents();
//Add packet stuff to queue
RTPPacketStuff rtpPacketStuff = new RTPPacketStuff(packetReport, packetHeader, packetContents);
_rtpPacketQueue.Enqueue(rtpPacketStuff);
}
else
{
// Paused, give up time slice
System.Threading.Thread.Sleep(30);
}
} catch (Exception e) {
Console.WriteLine(e.Message);
Console.WriteLine(paused);
if (!paused)
{
Console.WriteLine("Paused");
callback(null, new EventArgs());
break;
}
}
}
}
