lasp_biquadbank.h

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#pragma once
#include "lasp_filter.h"
#include "lasp_thread.h"
 
class SeriesBiquad : public Filter {
 
  dmat sos; 
  dmat state;
 
public:
  SeriesBiquad(const vd &filter_coefs);
 
  virtual void filter(vd &inout) override final;
  virtual ~SeriesBiquad() override {}
  void reset() override final;
  std::unique_ptr<Filter> clone() const override final;
 
  static SeriesBiquad firstOrderHighPass(const d fs, const d cuton_Hz);
};
 
class BiquadBank : public Filter {
  std::vector<SeriesBiquad> _filters;
  vd _gains;
  GlobalThreadPool _pool;
  mutable std::mutex _mtx;
 
public:
  BiquadBank(const dmat &filters, const vd *gains = nullptr);
 
  BiquadBank(std::vector<SeriesBiquad> filters,vd gains): 
    _filters(std::move(filters)),_gains(std::move(gains)) {}
 
  void setGains(const vd& gains);
 
  us nfilters() const {return _filters.size();}
 
  virtual void filter(vd &inout) override final;
 
  void reset() override final;
  std::unique_ptr<Filter> clone() const override final;
 
};