Method update

src/fl/audio/detector/drop.cpp.hpp:30–82

DropDetector::~DropDetector() FL_NOEXCEPT = default;

void DropDetector::update(shared_ptr<Context> context) {
    if (!context) {
        // Null context - nothing to process
        return;
    }

    mRetainedFFT = context->getFFT(32);
    const fft::Bins& fft = *mRetainedFFT;
    float rms = context->getRMS();
    u32 timestamp = context->getTimestamp();

    // Calculate frequency band energies
    float bassEnergy = getBassEnergy(fft);
    float midEnergy = getMidEnergy(fft);
    float trebleEnergy = getTrebleEnergy(fft);

    // Calculate flux values (rate of change)
    float energyFlux = calculateEnergyFlux(rms);
    float bassFlux = calculateBassFlux(bassEnergy);

    // Calculate spectral novelty (how much spectrum changed)
    float spectralNovelty = calculateSpectralNovelty(bassEnergy, midEnergy, trebleEnergy);

    // Calculate drop impact
    float impact = calculateDropImpact(energyFlux, bassFlux, spectralNovelty, rms);

    // Check if we should trigger a drop
    mDropDetectedThisFrame = false;
    if (shouldTriggerDrop(impact, timestamp)) {
        // Create drop event
        Drop dropEvent;
        dropEvent.impact = impact;
        dropEvent.bassEnergy = bassEnergy;
        dropEvent.energyIncrease = energyFlux;
        dropEvent.timestamp = timestamp;

        mLastDrop = dropEvent;
        mDropDetectedThisFrame = true;

        FL_DBG("DropDetector: Drop detected! Impact=" << impact
               << ", Bass=" << bassEnergy
               << ", Energy flux=" << energyFlux);
    }

    // Update baselines (exponential moving average)
    updateBaselines(rms, bassEnergy);

    // Store current values for next frame
    mPrevRMS = rms;
    mPrevBassEnergy = bassEnergy;
    mPrevMidEnergy = midEnergy;
    mPrevTrebleEnergy = trebleEnergy;
}

void DropDetector::fireCallbacks() {
    if (mDropDetectedThisFrame) {