protected override void DoCompareFrames(FrameTransition transition)
{
RGBData frame1 = transition.Frame1;
RGBData frame2 = transition.Frame2;
int index = transition.Index;
if (outputImageData == null)
{
outputImageData = new ImageData(new Bitmap(frames, frame1.Rows * 3));
outputImageData.Lock();
}
for (int i = 0; i < frame1.Rows; i++)
{
outputImageData.Data.SetR(counter, i, frame1.GetR(frame1.Columns / 4, i));
outputImageData.Data.SetG(counter, i, frame1.GetG(frame1.Columns / 4, i));
outputImageData.Data.SetB(counter, i, frame1.GetB(frame1.Columns / 4, i));
outputImageData.Data.SetR(counter, i + frame1.Rows, frame1.GetR(frame1.Columns / 2, i));
outputImageData.Data.SetG(counter, i + frame1.Rows, frame1.GetG(frame1.Columns / 2, i));
outputImageData.Data.SetB(counter, i + frame1.Rows, frame1.GetB(frame1.Columns / 2, i));
outputImageData.Data.SetR(counter, i + frame1.Rows * 2, frame1.GetR(frame1.Columns * 3 / 4, i));
outputImageData.Data.SetG(counter, i + frame1.Rows * 2, frame1.GetG(frame1.Columns * 3 / 4, i));
outputImageData.Data.SetB(counter, i + frame1.Rows * 2, frame1.GetB(frame1.Columns * 3 / 4, i));
}
}
public Task <double[]> Calculate(IVideoData data)
{
Func <double[]> func = () =>
{
frameCount = data.FrameCount;
DoInitialize(frameCount);
completed = 0;
maxFrameLock = new Semaphore(maxOpenFrames, maxOpenFrames);
completeLock = new Semaphore(1, 1);
completeLock.WaitOne();
data.CurrentFrame = 0;
RGBData frame1 = null;
ImageData data1 = data.GetNextFrame();
if (data1 != null)
{
data1.Lock();
frame1 = data1.Data;
}
RGBData frame2 = null;
ImageData data2 = data.GetNextFrame();
if (data2 != null)
{
data2.Lock();
frame2 = data2.Data;
}
int counter = 0;
while (data2 != null)
{
maxFrameLock.WaitOne();
FrameTransition frameTransition = new FrameTransition(frame1, frame2, counter++);
ThreadPool.QueueUserWorkItem(new WaitCallback((state) =>
{
DoCompareFrames(frameTransition);
maxFrameLock.Release();
Interlocked.Increment(ref completed);
if (completed >= frameCount - 1)
{
completeLock.Release();
}
}));
frame1 = frame2;
data2 = data.GetNextFrame();
if (data2 != null)
{
data2.Lock();
frame2 = data2.Data;
}
}
completeLock.WaitOne();
double[] results = DoComputeData();
completeLock.Release();
return(results);
};
return(Task <double[]> .Run(func));
}