AudioProcessor.h

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#pragma once
#include "HephAudioShared.h"
#include "AudioBuffer.h"
#include "EchoInfo.h"
#include "EqualizerInfo.h"
#include "Oscillators/Oscillator.h"
#include "Windows/Window.h"
#include "Buffers/DoubleBuffer.h"
#include "Buffers/ComplexBuffer.h"
#include <vector>
 
namespace HephAudio
{
    class HEPH_API AudioProcessor final
    {
    private:
        static constexpr size_t DEFAULT_HOP_SIZE = 1024u;
        static constexpr size_t DEFAULT_FFT_SIZE = 4096u;
 
    public:
        AudioProcessor() = delete;
        AudioProcessor(const AudioProcessor&) = delete;
        AudioProcessor& operator=(const AudioProcessor&) = delete;
#pragma region Converts, Mix, Split/Merge Channels
    public:
        static void ChangeChannelLayout(AudioBuffer& buffer, const AudioChannelLayout& outputChannelLayout);
 
        static void ChangeSampleRate(AudioBuffer& buffer, uint32_t outputSampleRate);
 
        static std::vector<Heph::DoubleBuffer> SplitChannels(const AudioBuffer& buffer);
 
        static AudioBuffer MergeChannels(const std::vector<Heph::DoubleBuffer>& channels, uint32_t sampleRate);
 
        static void ChangeEndian(AudioBuffer& buffer);
#pragma endregion
#pragma region Sound Effects
    public:
        static void Echo(AudioBuffer& buffer, EchoInfo info);
 
        static void LinearPanning(AudioBuffer& buffer, double panningFactor);
 
        static void SquareLawPanning(AudioBuffer& buffer, double panningFactor);
 
        static void SineLawPanning(AudioBuffer& buffer, double panningFactor);
 
        static void Tremolo(AudioBuffer& buffer, double depth, const Oscillator& lfo);
 
        static void Vibrato(AudioBuffer& buffer, double depth, double extent_semitone, const Oscillator& lfo);
 
        static void Chorus(AudioBuffer& buffer, double depth, double feedbackGain, double baseDelay_ms, double delay_ms, double extent_semitone, const Oscillator& lfo);
 
        static void Flanger(AudioBuffer& buffer, double depth, double feedbackGain, double baseDelay_ms, double delay_ms, const Oscillator& lfo);
 
        static void FixOverflow(AudioBuffer& buffer);
 
        static void Normalize(AudioBuffer& buffer, heph_audio_sample_t peakAmplitude);
 
        static void RmsNormalize(AudioBuffer& buffer, double rms);
 
        static void HardClipDistortion(AudioBuffer& buffer, double clippingLevel_dB);
 
        static void ArctanDistortion(AudioBuffer& buffer, double alpha);
 
        static void CubicDistortion(AudioBuffer& buffer, double a);
 
        static void Overdrive(AudioBuffer& buffer, double drive);
 
        static void Fuzz(AudioBuffer& buffer, double depth, double alpha);
 
        static void LinearFadeIn(AudioBuffer& buffer, double duration_s);
 
        static void LinearFadeIn(AudioBuffer& buffer, double duration_s, size_t startIndex);
 
        static void LinearFadeOut(AudioBuffer& buffer, double duration_s);
 
        static void LinearFadeOut(AudioBuffer& buffer, double duration_s, size_t startIndex);
 
        static void Equalizer(AudioBuffer& buffer, Window& window, const std::vector<EqualizerInfo>& infos);
 
        static void Equalizer(AudioBuffer& buffer, size_t hopSize, size_t fftSize, Window& window, const std::vector<EqualizerInfo>& infos);
 
        static void EqualizerMT(AudioBuffer& buffer, Window& window, const std::vector<EqualizerInfo>& infos);
 
        static void EqualizerMT(AudioBuffer& buffer, size_t threadCountPerChannel, Window& window, const std::vector<EqualizerInfo>& infos);
 
        static void EqualizerMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, Window& window, const std::vector<EqualizerInfo>& infos);
 
        static void EqualizerMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, size_t threadCountPerChannel, Window& window, const std::vector<EqualizerInfo>& infos);
 
        static void ChangeSpeed(AudioBuffer& buffer, double speed, Window& window);
 
        static void ChangeSpeed(AudioBuffer& buffer, size_t hopSize, size_t windowSize, double speed, Window& window);
 
        static void PitchShift(AudioBuffer& buffer, double pitchChange_semitone, Window& window);
 
        static void PitchShift(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double pitchChange_semitone, Window& window);
 
        static void PitchShiftMT(AudioBuffer& buffer, double pitchChange_semitone, Window& window);
 
        static void PitchShiftMT(AudioBuffer& buffer, double pitchChange_semitone, size_t threadCountPerChannel, Window& window);
 
        static void PitchShiftMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double pitchChange_semitone, Window& window);
 
        static void PitchShiftMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double pitchChange_semitone, size_t threadCountPerChannel, Window& window);
#pragma endregion
#pragma region Filters
    public:
        static void LowPassFilter(AudioBuffer& buffer, double cutoffFreq, Window& window);
 
        static void LowPassFilter(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double cutoffFreq, Window& window);
 
        static void LowPassFilterMT(AudioBuffer& buffer, double cutoffFreq, Window& window);
 
        static void LowPassFilterMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double cutoffFreq, Window& window);
 
        static void LowPassFilterMT(AudioBuffer& buffer, double cutoffFreq, size_t threadCountPerChannel, Window& window);
 
        static void LowPassFilterMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double cutoffFreq, size_t threadCountPerChannel, Window& window);
 
        static void HighPassFilter(AudioBuffer& buffer, double cutoffFreq, Window& window);
 
        static void HighPassFilter(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double cutoffFreq, Window& window);
 
        static void HighPassFilterMT(AudioBuffer& buffer, double cutoffFreq, Window& window);
 
        static void HighPassFilterMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double cutoffFreq, Window& window);
 
        static void HighPassFilterMT(AudioBuffer& buffer, double cutoffFreq, size_t threadCountPerChannel, Window& window);
 
        static void HighPassFilterMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double cutoffFreq, size_t threadCountPerChannel, Window& window);
 
        static void BandPassFilter(AudioBuffer& buffer, double lowCutoffFreq, double highCutoffFreq, Window& window);
 
        static void BandPassFilter(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double lowCutoffFreq, double highCutoffFreq, Window& window);
 
        static void BandPassFilterMT(AudioBuffer& buffer, double lowCutoffFreq, double highCutoffFreq, Window& window);
 
        static void BandPassFilterMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double lowCutoffFreq, double highCutoffFreq, Window& window);
 
        static void BandPassFilterMT(AudioBuffer& buffer, double lowCutoffFreq, double highCutoffFreq, size_t threadCountPerChannel, Window& window);
 
        static void BandPassFilterMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double lowCutoffFreq, double highCutoffFreq, size_t threadCountPerChannel, Window& window);
        
        static void BandCutFilter(AudioBuffer& buffer, double lowCutoffFreq, double highCutoffFreq, Window& window);
 
        static void BandCutFilter(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double lowCutoffFreq, double highCutoffFreq, Window& window);
 
        static void BandCutFilterMT(AudioBuffer& buffer, double lowCutoffFreq, double highCutoffFreq, Window& window);
 
        static void BandCutFilterMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double lowCutoffFreq, double highCutoffFreq, Window& window);
 
        static void BandCutFilterMT(AudioBuffer& buffer, double lowCutoffFreq, double highCutoffFreq, size_t threadCountPerChannel, Window& window);
 
        static void BandCutFilterMT(AudioBuffer& buffer, size_t hopSize, size_t fftSize, double lowCutoffFreq, double highCutoffFreq, size_t threadCountPerChannel, Window& window);
#pragma endregion
    };
}