/// <summary>
/// Handles body(skeleton)
/// </summary>
/// <param name="bodyCollectedCancelTokenSource">cancelTokenSource used to stop the task</param>
private static void HandleBody(CancellationTokenSource bodyCollectedCancelTokenSource)
{
BodyFrameArrivedEventArgs e = null;
String frameNumber = String.Empty;
BodyFrame bodyFrame;
while (true)
{
bodyFrame = null;
if (bodyCollectedCancelTokenSource.IsCancellationRequested)
{
break;
}
if (bodyFrameQueue.Count != 0)
{
lock (FramesAndPaths.allFrameInfo)
{
if ((FramesAndPaths.allFrameInfo.allFrameFlag & 4) != 0)
{
continue;
}
try
{
e = bodyFrameQueue.Dequeue();
}
catch (InvalidOperationException)
{
continue;
}
try
{
bodyFrame = e.FrameReference.AcquireFrame();
}
catch (NullReferenceException)
{}
if (bodyFrame == null)
{
continue;
}
frameNumber = FramesAndPaths.allFrameInfo.frameNumber;
FramesAndPaths.allFrameInfo.allFrameFlag |= 4;
if ((FramesAndPaths.allFrameInfo.allFrameFlag ^ 31) == 0)
{
FramesAndPaths.allFrameInfo.allFrameFlag = 0;
FramesAndPaths.FrameNumberIncrement();
++writtenCount;
}
}
StoreFramesData.Handle_BodyFrame(bodyFrame, frameNumber);
}
}
}
/// <summary>
/// Handles color
/// </summary>
/// <param name="colorCollectedCancelTokenSource">cancelTokenSource used to stop the task</param>
private static void HandleColor(CancellationTokenSource colorCollectedCancelTokenSource)
{
ColorFrameArrivedEventArgs e = null;
String frameNumber = String.Empty;
ColorFrame colorFrame;
while (true)
{
colorFrame = null;
// Whether task is requested to be canceled or not
// 检查线程是否被请求中止
if (colorCollectedCancelTokenSource.IsCancellationRequested)
{
break;
}
// Queue not empty
// 若队列不空
if (colorFrameQueue.Count != 0)
{
// Only one thread is allowed to access the global frame information object each time
// 加互斥锁, 一次只允许一个线程访问
lock (FramesAndPaths.allFrameInfo)
{
// The frame information has already been written to disk this round, continue
// 若本回写过, 则下一次循环
if ((FramesAndPaths.allFrameInfo.allFrameFlag & 1) != 0)
{
continue;
}
// Fetch a frame
try
{
e = colorFrameQueue.Dequeue();
}
catch (InvalidOperationException)
{
continue;
}
try
{
colorFrame = e.FrameReference.AcquireFrame();
}
catch (NullReferenceException)
{ }
// Null frame, continue
if (colorFrame == null)
{
continue;
}
// Fetch global frame number
// 拿帧号
frameNumber = FramesAndPaths.allFrameInfo.frameNumber;
// Label current frame to be written this around
// 标记 rgb 帧已写
FramesAndPaths.allFrameInfo.allFrameFlag |= 1;
// All kinds of frame information have been written to disk
// 本回各种帧都已写完
if ((FramesAndPaths.allFrameInfo.allFrameFlag ^ 31) == 0)
{
// Set global flag to zero
// 全局flag置0
FramesAndPaths.allFrameInfo.allFrameFlag = 0;
// Increment the frame number
// frameNumber 增加
FramesAndPaths.FrameNumberIncrement();
// Increment the number of series of frames this program processes this second
++writtenCount;
}
}
// Write to disk
// 写图
StoreFramesData.Handle_ColorFrame(colorFrame, frameNumber);
}
}
}