cxStreamedTimestampSynchronizer.h

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/*=========================================================================
This file is part of CustusX, an Image Guided Therapy Application.
                 
Copyright (c) SINTEF Department of Medical Technology.
All rights reserved.
                 
CustusX is released under a BSD 3-Clause license.
                 
See Lisence.txt (https://github.com/SINTEFMedtek/CustusX/blob/master/License.txt) for details.
=========================================================================*/

#ifndef STREAMEDTIMESTAMPSYNCHRONIZER_H
#define STREAMEDTIMESTAMPSYNCHRONIZER_H

#include "cxResourceExport.h"


#include <vector>
#include "boost/shared_ptr.hpp"
#include <QDateTime>
#include "cxForwardDeclarations.h"

namespace cx
{

class cxResource_EXPORT StreamedTimestampSynchronizer
{
public:
    StreamedTimestampSynchronizer();
    void syncToCurrentTime(ImagePtr imgMsg);

    void addTimestamp(QDateTime timestamp);
    void addTimestamp(double timestamp);

    double getShift() const;

private:
    template<class ITER>
    double average(ITER begin, ITER end) const;

    mutable double mLastComputedTimestampShift;
    QList<double> mDeltaWindow;
    int mMaxWindowSize;
};


} //end namespace cx

#endif // STREAMEDTIMESTAMPSYNCHRONIZER_H