public override VideoFrame getFrame()
{
TeRK.Image image = proxy.getFrame(0);
VideoFrame frame = new VideoFrame();
frame.ImageData = image.data;
frame.Width = image.width;
frame.Height = image.height;
return(frame);
}
/// <summary>
/// Worker thread.
/// </summary>
///
private void WorkerThread( )
{
// download start time and duration
DateTime start;
TimeSpan span;
while (!stopEvent.WaitOne(0, false))
{
try
{
// start Qwerk's camera
videoStreamer.startCamera( );
while (!stopEvent.WaitOne(0, false))
{
// get download start time
start = DateTime.Now;
TeRKIceLib.Image qwerkImage = videoStreamer.getFrame(0);
// increase frames' and bytes' counters
framesReceived++;
bytesReceived += qwerkImage.data.Length;
if (qwerkImage.format == TeRKIceLib.ImageFormat.ImageJPEG)
{
Bitmap image = (Bitmap)Image.FromStream(new MemoryStream(qwerkImage.data));
// notify clients
if (NewFrame != null)
{
NewFrame(this, new NewFrameEventArgs(image));
}
image.Dispose( );
}
else
{
if (VideoSourceError != null)
{
VideoSourceError(this, new VideoSourceErrorEventArgs("Video frame has unsupported format: " + qwerkImage.format));
}
}
// wait for a while ?
if (frameInterval > 0)
{
// get download duration
span = DateTime.Now.Subtract(start);
// miliseconds to sleep
int msec = frameInterval - (int)span.TotalMilliseconds;
while ((msec > 0) && (stopEvent.WaitOne(0, false) == false))
{
// sleeping ...
Thread.Sleep((msec < 100) ? msec : 100);
msec -= 100;
}
}
}
// stop Qwerk's camera
videoStreamer.stopCamera( );
}
catch (Ice.SocketException)
{
if (VideoSourceError != null)
{
VideoSourceError(this, new VideoSourceErrorEventArgs("Connection lost to Qwerk's video service."));
}
}
catch
{
if (VideoSourceError != null)
{
VideoSourceError(this, new VideoSourceErrorEventArgs("Failed getting video frame from Qwerk."));
}
}
}
if (PlayingFinished != null)
{
PlayingFinished(this, ReasonToFinishPlaying.StoppedByUser);
}
}
