sensorfw
sensors/contextplugin/avgvarfilter.h
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00001 
00025 #ifndef AVGVARFILTER_H
00026 #define AVGVARFILTER_H
00027 
00028 #include "filter.h"
00029 
00030 #include <QPair>
00031 #include <QVector>
00032 #include <QMutex>
00033 
00034 class AvgVarFilter : public QObject, public Filter<double, AvgVarFilter, QPair<double, double> >
00035 {
00036     Q_OBJECT
00037 
00038 public:
00039     AvgVarFilter(int samples);
00040     void reset();
00041 
00042 private:
00043     int size;
00044     int samplesReceived;
00045     int current;
00046     QVector<double> samples;
00047     QVector<double> samplesSquared;
00048     double sampleSum;
00049     double sampleSquareSum;
00050     QMutex mutex;
00051 
00052     void interpret(unsigned, const double* data);
00053 };
00054 
00055 #endif