FormantShifterLogger.h

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/*  SPDX-License-Identifier: GPL-2.0-or-later */
/*!********************************************************************
 
  Audacity: A Digital Audio Editor
 
  FormantShifterLogger.h
 
  Implements FormantShifterLoggerInterface, and also provides tuning utilities
  to override algorithm parameters.
 
  Matthieu Hodgkinson
 
**********************************************************************/
#pragma once
 
#include "FormantShifterLoggerInterface.h"
#include <fstream>
#include <memory>
 
class FormantShifterLogger : public FormantShifterLoggerInterface
{
public:
   FormantShifterLogger(int sampleRate, int logTimeInSamples);
   ~FormantShifterLogger() override;
 
   void NewSamplesComing(int sampleCount) override;
 
   // Methods intended to be called from FormantShifter
public:
   void Log(int value, const char* name) const override;
   void Log(const float* samples, size_t size, const char* name) const override;
   void Log(
      const std::complex<float>* samples, size_t size, const char* name,
      const std::function<float(const std::complex<float>&)>& transform)
      const override;
   void ProcessFinished(std::complex<float>* spectrum, size_t fftSize) override;
 
private:
   const int mSampleRate;
   const int mLogSample;
   bool mWasLogged = false;
   std::unique_ptr<std::ofstream> mOfs;
   int mSampleCount = 0;
};