FloatVectorClip.h

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/*  SPDX-License-Identifier: GPL-2.0-or-later */
/*!********************************************************************
 
  Audacity: A Digital Audio Editor
 
  FloatVectorClip.h
 
  Matthieu Hodgkinson
 
**********************************************************************/
#pragma once
 
#include "ClipInterface.h"
 
class FloatVectorClip : public ClipInterface
{
public:
   FloatVectorClip(
      int sampleRate, const std::vector<std::vector<float>>& audio);
 
   // Duplicates audio to numChannels
   FloatVectorClip(
      int sampleRate, const std::vector<float>& audio, size_t numChannels);
 
   AudioSegmentSampleView GetSampleView(
      size_t iChannel, sampleCount start, size_t len,
      bool mayThrow) const override;
 
   sampleCount GetVisibleSampleCount() const override;
 
   size_t NChannels() const override;
 
   int GetRate() const override;
 
   double GetPlayStartTime() const override
   {
      return playStartTime;
   }
 
   double GetPlayEndTime() const override
   {
      return playStartTime + GetPlayDuration();
   }
 
   sampleCount TimeToSamples(double time) const override;
 
   double GetStretchRatio() const override
   {
      return stretchRatio;
   }
 
   int GetCentShift() const override
   {
      return 0;
   }
 
   Observer::Subscription
   SubscribeToCentShiftChange(std::function<void(int)> cb) const override
   {
      return {};
   }
 
   PitchAndSpeedPreset GetPitchAndSpeedPreset() const override
   {
      return PitchAndSpeedPreset::Default;
   }
 
   Observer::Subscription SubscribeToPitchAndSpeedPresetChange(
      std::function<void(PitchAndSpeedPreset)> cb) const override
   {
      return {};
   }
 
public:
   double stretchRatio = 1.;
   double playStartTime = 0.;
 
private:
   double GetPlayDuration() const;
 
   const int mSampleRate;
   const std::vector<std::vector<float>> mAudio;
};