int ISampleGrabberCB.BufferCB(double time, IntPtr pBuffer, int len)
{
if (this.m_bGrabFrame)
{
if (len <= this.m_Stride * this.m_Height)
{
CaptureGraph.CopyMemory(this.m_Buffer, pBuffer, len);
}
this.m_bGrabFrame = false;
this.m_Evt.Set();
}
else
{
++this.m_DroppedFrame;
}
return(0);
}
public Camera(
int unit,
int width,
int height,
int framerate,
int quality,
SupportedColorFormat color)
{
this.m_bStop = true;
this.m_Unit = unit;
this.m_Width = width;
this.m_Height = height;
this.m_Framerate = framerate;
this.m_Quality = quality;
this.m_color = color;
this.VidCapture = new CaptureGraph(this.m_Unit, this.m_Width, this.m_Height, this.m_Framerate, this.m_color);
}
public void StopCamera()
{
if (this.previewThread != null)
{
this.m_bStop = true;
this.previewThread.Join();
if (this.VidCapture != null)
{
this.VidCapture.Dispose();
this.VidCapture = (CaptureGraph)null;
}
if (Camera.s_sendFrame != null)
{
Camera.s_sendFrame = (Camera.getFrameCB)null;
}
}
this.previewThread = (Thread)null;
}
protected void Run()
{
this.m_bStop = false;
try
{
this.VidCapture.Run();
do
{
try
{
this.pFrame = IntPtr.Zero;
this.pFrame = this.VidCapture.getSignleFrame();
if (Camera.s_sendFrame != null && this.pFrame != IntPtr.Zero)
{
Camera.s_sendFrame(this.pFrame, this.VidCapture.Width, this.VidCapture.Height, this.VidCapture.Stride);
}
if (!this.m_bStop)
{
continue;
}
}
catch (Exception ex)
{
Logger.Error("Exception in send frame callback. Err : {0}", (object)ex.ToString());
throw;
}
this.VidCapture.Pause();
}while (!this.m_bStop);
}
catch (Exception ex)
{
Logger.Error("Exception in Graph Run. Err : {0}", (object)ex.ToString());
}
finally
{
if (this.VidCapture != null)
{
this.VidCapture.Dispose();
this.VidCapture = (CaptureGraph)null;
}
}
}
