/// <summary>
/// Worker thread.
/// </summary>
///
public void WorkerThread()
{
// AVI reader
try
{
// open file
aviReader.Open(source);
// stop positions
int stopPosition = aviReader.Start + aviReader.Length;
while (true)
{
// start time
DateTime start = DateTime.Now;
// get next frame
Bitmap bitmap = aviReader.GetNextFrame();
framesReceived++;
// need to stop ?
if (stopEvent.WaitOne(0, false))
{
break;
}
if (NewFrame != null)
{
NewFrame(this, new NewFrameEventArgs(bitmap));
}
// free image
bitmap.Dispose();
// check current position
if (aviReader.Position >= stopPosition)
{
break;
}
while (this.Pause && (stopEvent.WaitOne(0, true) == false))
{
Thread.Sleep(1000);
start.AddSeconds(1.0);
}
// frame interval
int interval = (frameIntervalFromSource) ? (int)(1000 / aviReader.FrameRate) : frameInterval;
if (this.Speed > 1)
{
interval = (interval * 1000 / this.Speed) / 1000;
}
if (this.Speed < -1)
{
interval = interval * (0 - this.Speed);
}
// wait for a while ?
if (interval > 0)
{
// get frame extract duration
TimeSpan span = DateTime.Now.Subtract(start);
// miliseconds to sleep
int msec = interval - (int)span.TotalMilliseconds;
while ((msec > 0) && (stopEvent.WaitOne(0, true) == false))
{
// sleeping ...
Thread.Sleep((msec < 100) ? msec : 100);
msec -= 100;
}
}
}
}
catch (Exception exception)
{
// provide information to clients
if (VideoSourceError != null)
{
VideoSourceError(this, new VideoSourceErrorEventArgs(exception.Message));
}
}
aviReader.Close();
//aviReader.Dispose();
//aviReader = null;
}
public void CloseReader()
{
reader.Close();
}
