latency_tracker.h

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#ifndef LATENCY_TRACKER_H
#define LATENCY_TRACKER_H
 
#include <QList>
#include <QMetaType>
#include <array>

class LatencyTracker
{
public:
    static constexpr int WindowSize = 64;
 
    struct Stats
    {
        qint64 lastMs = 0;   
        qint64 medianMs = 0; 
        qint64 p95Ms = 0;    
        qint64 maxMs = 0;    
        int sampleCount = 0; 
    };
 
    void addSample(qint64 ms);
    Stats stats() const;

    QList<qint64> recentSamples() const;
 
    void clear();
 
private:
    std::array<qint64, WindowSize> samples{};
    int head = 0;  
    int count = 0; 
};
 
Q_DECLARE_METATYPE(LatencyTracker::Stats)
 
#endif