benchmark.h

/* SPDX-License-Identifier: LGPL-2.1-or-later */
/*
 * Copyright (C) 2024, Red Hat Inc.
 *
 * Authors:
 * Hans de Goede <hdegoede@redhat.com>
 *
 * Simple builtin benchmark to measure software ISP processing times
 */
 
#pragma once
 
#include <stdint.h>
#include <string>
#include <time.h>
#include <libcamera/base/log.h>
#include "libcamera/internal/global_configuration.h"
 
namespace libcamera {
 
class Benchmark
{
public:
    Benchmark(const GlobalConfiguration &configuration, const std::string &name);
    ~Benchmark();
 
    void startFrame(void);
    void finishFrame(void);
 
private:
    std::string name_;
    timespec frameStartTime_;
    bool measure_;
    /* Skip 30 frames for things to stabilize then measure 30 frames */
    unsigned int encounteredFrames_ = 0;
    int64_t frameProcessTime_ = 0;
    unsigned int skipBeforeMeasure_ = 30;
    unsigned int framesToMeasure_ = 30;
};
 
} /* namespace libcamera */