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#ifndef PARAMERICEQEFFECT_H
#define PARAMERICEQEFFECT_H
#include <vector>
#include <QMap>
#include "control/controlproxy.h"
#include "effects/effect.h"
#include "effects/effectprocessor.h"
#include "engine/effects/engineeffect.h"
#include "engine/effects/engineeffectparameter.h"
#include "engine/filters/enginefilterbiquad1.h"
#include "util/class.h"
#include "util/defs.h"
#include "util/sample.h"
#include "util/types.h"
#include "util/memory.h"
// The ParametricEQEffect models the mid bands from a SSL Black EQ (242)
// with a gentle parameter range, as requested here:
// https://www.mixxx.org/forums/viewtopic.php?f=3&t=9239&p=33312&hilit=SSL#p33312
// The main use case is to tweak the room or recording sound, which is hard to achieve
// with the sharp and wide curves of the mixing EQs.
class ParametricEQEffectGroupState final : public EffectState {
public:
ParametricEQEffectGroupState(const mixxx::EngineParameters& bufferParameters);
void setFilters(int sampleRate);
std::vector<std::unique_ptr<EngineFilterBiquad1Peaking> > m_bands;
QList<double> m_oldGain;
QList<double> m_oldCenter;
QList<double> m_oldQ;
QList<CSAMPLE*> m_pBufs;
};
class ParametricEQEffect : public EffectProcessorImpl<ParametricEQEffectGroupState> {
public:
ParametricEQEffect(EngineEffect* pEffect);
virtual ~ParametricEQEffect();
static QString getId();
static EffectManifestPointer getManifest();
// See effectprocessor.h
void processChannel(const ChannelHandle& handle,
ParametricEQEffectGroupState* pState,
const CSAMPLE* pInput, CSAMPLE *pOutput,
const mixxx::EngineParameters& bufferParameters,
const EffectEnableState enableState,
const GroupFeatureState& groupFeatureState);
private:
QString debugString() const {
return getId();
}
QList<EngineEffectParameter*> m_pPotGain;
QList<EngineEffectParameter*> m_pPotQ;
QList<EngineEffectParameter*> m_pPotCenter;
mixxx::audio::SampleRate m_oldSampleRate;
DISALLOW_COPY_AND_ASSIGN(ParametricEQEffect);
};
#endif // PARAMERICEQEFFECT_H
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