moving_average.h

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#ifndef _moving_average_H_
#define _moving_average_H_
 
#include <vector>
 
#include "transform.h"
 
namespace sensesp {
 
// y = k * 1/n * \sum_k=1^n(x_k)
class MovingAverage : public FloatTransform {
 public:
  MovingAverage(int sample_size, float multiplier = 1.0,
                String config_path = "");
  virtual void set_input(float input, uint8_t inputChannel = 0) override;
  virtual void get_configuration(JsonObject& doc) override;
  virtual bool set_configuration(const JsonObject& config) override;
  virtual String get_config_schema() override;
 
 private:
  std::vector<float> buf_;
  int ptr_ = 0;
  int sample_size_;
  float multiplier_;
  bool initialized_;
};
 
}  // namespace sensesp
#endif