Performance Metrics

class PerformanceMetrics

Public Types

enum MetricTypes

Values:

enumerator ALL

enumerator FPS

enumerator LATENCY

using Clock = std::chrono::steady_clock

using TimePoint = std::chrono::time_point<Clock>

using Duration = Clock::duration

using Ms = std::chrono::duration<double, std::ratio<1, 1000>>

using Sec = std::chrono::duration<double, std::ratio<1, 1>>

Public Functions

PerformanceMetrics(Duration timeWindow = std::chrono::seconds(1))

void update(TimePoint lastRequestStartTime, const cv::Mat &frame, cv::Point position = {15, 30}, int fontFace = cv::FONT_HERSHEY_COMPLEX, double fontScale = 0.75, cv::Scalar color = {200, 10, 10}, int thickness = 2, MetricTypes metricType = ALL)

void update(TimePoint lastRequestStartTime)

void paintMetrics(const cv::Mat &frame, cv::Point position = {15, 30}, int fontFace = cv::FONT_HERSHEY_COMPLEX, double fontScale = 0.75, cv::Scalar color = {200, 10, 10}, int thickness = 2, MetricTypes metricType = ALL) const

Paints metrics over provided mat

Parameters:

• frame – frame to paint over

• position – left top corner of text block

• fontScale – font scale

• color – font color

• thickness – font thickness

Metrics getLast() const

Metrics getTotal() const

void logTotal() const

Private Members

Duration timeWindowSize

Statistic lastMovingStatistic

Statistic currentMovingStatistic

Statistic totalStatistic

TimePoint lastUpdateTime

bool firstFrameProcessed

struct Metrics

Public Members

double latency

double fps

struct Statistic

Public Functions

inline Statistic()

inline void combine(const Statistic &other)

Public Members

Duration latency

Duration period

int frameCount