public void Stop()
{
DebugTrace.TraceVerbose("Stop called by: \r\n" + new StackTrace(1, true).ToString());
if (playerThread != null)
{
if (playerThread.IsAlive)
{
running = false;
isRecording = false;
DebugTrace.TraceInfo("Camera stop request sent. Waiting ...");
playerThread.Join(500);
if (playerThread.IsAlive)
{
DebugTrace.TraceWarning("Killing camera thread");
playerThread.Abort();
playerThread.Join();
}
}
playerThread = null;
}
}
private void PlayerWorkerThread(object state)
{
DebugTrace.TraceInfo(string.Format("Camera started. Buffer size: {0}", playbackBufferSize));
BufferedFrameInfo newFrame;
lock (syncRoot)
{
playbackBuffer.Clear();
newFrame = new BufferedFrameInfo()
{
FirstIntegratedFrameIndex = -1
};
integratedFramesSoFar = 0;
}
lastBufferedImage = new int[height, width];
isRecording = false;
Profiler.ResetAndStartTimer(100);
while (running)
{
currentFrameIndex++;
long startTicks = Profiler.GetTicks();
if (currentFrameIndex > allImagesPixels.Count - 1)
{
Profiler.StopTimer(100);
double msForAllImages = Profiler.GetElapsedMillisecondsForTimer(100);
double fps = allImagesPixels.Count * 1000.0 / msForAllImages;
DebugTrace.TraceVerbose(string.Format("Camera running at {0} fps", fps.ToString("#0.00")));
currentFrameIndex = 0;
Profiler.ResetAndStartTimer(100);
}
if (playbackBufferSize > 0)
{
lock (syncRoot)
{
while (playbackBuffer.Count > playbackBufferSize)
{
playbackBuffer.Dequeue();
}
if (newFrame.FirstIntegratedFrameIndex == -1)
{
newFrame.FirstIntegratedFrameIndex = currentFrameIndex;
newFrame.LastIntegratedFrameIndex = -1;
}
if (integration > 1)
{
integratedFramesSoFar++;
if (integratedFramesSoFar >= integration)
{
newFrame.LastIntegratedFrameIndex = currentFrameIndex;
newFrame.IsIntegratedFrame = true;
}
}
else
{
newFrame.LastIntegratedFrameIndex = newFrame.FirstIntegratedFrameIndex;
newFrame.IsIntegratedFrame = false;
}
if (newFrame.LastIntegratedFrameIndex != -1)
{
currentFrameNo++;
newFrame.CurrentFrameNo = currentFrameNo;
playbackBuffer.Enqueue(newFrame);
newFrame = new BufferedFrameInfo()
{
FirstIntegratedFrameIndex = -1
};
integratedFramesSoFar = 0;
}
}
}
else
{
// No buffering
if (newFrame.FirstIntegratedFrameIndex == -1)
{
newFrame.FirstIntegratedFrameIndex = currentFrameIndex;
newFrame.LastIntegratedFrameIndex = -1;
}
if (integration > 1)
{
integratedFramesSoFar++;
if (integratedFramesSoFar >= integration)
{
newFrame.LastIntegratedFrameIndex = currentFrameIndex;
newFrame.IsIntegratedFrame = true;
}
}
else
{
newFrame.LastIntegratedFrameIndex = newFrame.FirstIntegratedFrameIndex;
newFrame.IsIntegratedFrame = false;
}
if (newFrame.LastIntegratedFrameIndex != -1)
{
currentFrameNo++;
newFrame.CurrentFrameNo = currentFrameNo;
currentFrame = newFrame;
newFrame = new BufferedFrameInfo()
{
FirstIntegratedFrameIndex = -1
};
integratedFramesSoFar = 0;
}
if (isRecording)
{
int[,] pixels = GetCurrentImageFromBufferedFrame(currentFrame);
aviTools.AddAviVideoFrame(pixels);
}
}
long endTicks = Profiler.GetTicks();
int msThisFrame = (int)Profiler.TranslateTicksToMilliseconds(endTicks - startTicks);
if (msThisFrame < frameWaitTime)
{
Thread.Sleep(frameWaitTime - msThisFrame);
}
if (stopRecordingRequested)
{
stopRecordingRequested = false;
isRecording = false;
}
}
DebugTrace.TraceInfo("Camera stopped");
}
private void BufferVideoFrames(IWin32Window ownerForm, string bitmapFilesLocation)
{
frmLoadingImages frmLoading = OpenProgressForm(ownerForm);
try
{
string[] files = Directory.GetFiles(bitmapFilesLocation, "*.bmp");
allFiles.AddRange(files);
allFiles.Sort();
if (allFiles.Count > 0)
{
width = 0;
height = 0;
// TODO: Use .NET 4 multithreaded loading
for (int i = 0; i < allFiles.Count; i++)
{
var bmp = new Bitmap(allFiles[i]);
if (width == 0 && height == 0)
{
width = bmp.Width;
height = bmp.Height;
}
else if (width != bmp.Width || height != bmp.Height)
{
throw new ApplicationException("All bitmaps must be the same size.");
}
int[,] pixels = CopyBitmapPixels(bmp);
allImagesPixels.Add(pixels);
frmLoading.SetProgress(i + 1, allFiles.Count);
}
errorBitmap = null;
errorPixels = null;
bufferedImageWidth = width;
bufferedImageHeight = height;
DebugTrace.TraceInfo(string.Format("Loaded {0} camera images from '{1}'", allFiles.Count, bitmapFilesLocation));
}
else
{
errorBitmap = new Bitmap(width, height);
PrepareErrorMessage(string.Format("No bmp file found in '{0}'", bitmapFilesLocation));
errorPixels = CopyBitmapPixels(errorBitmap);
DebugTrace.TraceError(string.Format("No camera images found in '{0}'", bitmapFilesLocation));
}
}
catch (Exception ex)
{
DebugTrace.TraceError(ex);
errorBitmap = new Bitmap(width, height);
PrepareErrorMessage(ex.Message);
errorPixels = CopyBitmapPixels(errorBitmap);
}
finally
{
CloseProgressForm(frmLoading);
}
}
