C++ (Cpp) TimeStamp::getMinutes示例

//This function should be called every tick/frame. This used the previous functions to
//Update time, get the current spectrum and the adaptive threshold and then does a check
//to see if a beat has occured. It also allows for some post-detection ignore clause.
//This function also does functions such as update the smoothing median list, create a
//timestamp object, update the lastBeatRegistered and checks to see if the song
//is still playing
bool BeatDetectorLite::update(float* left, float* right, int length) {
    float* stereo = (float*) malloc(length * sizeof(float));
    for(int i = 0; i < length; i++) {
        stereo[i] = left[i] + right[i];
    }

    if(previousFFT == NULL) {
        previousFFT = stereo;
        return false;
    }

    beatThreshold = calculateFluxAndSmoothing(stereo);

    //Beat detected
    if (specFlux > beatThreshold && (clock() - timeBetween) > 350)
    {
        smootherValues.push_back(specFlux);

        if (smootherValues.size() >= 5)
        {
            smootherValues.erase(smootherValues.begin());
        }

        timeBetween = clock();

        TimeStamp* t = new TimeStamp(currentMinutes, currentSeconds, currentMillis, specFlux);
        std::cout << "BEAT AT: " << t->getMinutes() << ":" << t->getSeconds() << ":" << t->getMilliseconds() << " -- BEAT FREQ: " << t->getFrequency() << " -- THRESHOLD: " << beatThreshold << std::endl;
        lastBeatRegistered = t;
        return true;
    }
    else if ((clock() - timeBetween) > 5000)
    {
        if (thresholdSmoother>0.4f)
            thresholdSmoother -= 0.4f;

        timeBetween = clock();
        return false;
    }

    return false;
}