StftFrameProvider.h

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/*  SPDX-License-Identifier: GPL-2.0-or-later */
/*!********************************************************************
 
  Audacity: A Digital Audio Editor
 
  StftFrameProvider.h
 
  Matthieu Hodgkinson
 
**********************************************************************/
#pragma once
 
#include <vector>
#include "PowerSpectrumGetter.h"
 
namespace MIR
{
class MirAudioReader;
 
class MUSIC_INFORMATION_RETRIEVAL_API StftFrameProvider
{
public:
   StftFrameProvider(const MirAudioReader& source);
   bool GetNextFrame(PffftFloatVector& frame);
   int GetNumFrames() const;
   int GetSampleRate() const;
   double GetFrameRate() const;
   int GetFftSize() const;
 
private:
   const MirAudioReader& mAudio;
   const int mFftSize;
   const double mHopSize;
   const std::vector<float> mWindow;
   const int mNumFrames;
   const long long mNumSamples;
   int mNumFramesProvided = 0;
};
} // namespace MIR