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#ifndef AUDIO_EFFECT_SPECTRUM_ANALYZER_H
#define AUDIO_EFFECT_SPECTRUM_ANALYZER_H
#include "servers/audio/audio_effect.h"
class AudioEffectSpectrumAnalyzer;
class AudioEffectSpectrumAnalyzerInstance : public AudioEffectInstance {
GDCLASS(AudioEffectSpectrumAnalyzerInstance, AudioEffectInstance)
public:
enum MagnitudeMode {
MAGNITUDE_AVERAGE,
MAGNITUDE_MAX,
};
private:
friend class AudioEffectSpectrumAnalyzer;
Ref<AudioEffectSpectrumAnalyzer> base;
Vector<Vector<AudioFrame> > fft_history;
Vector<float> temporal_fft;
int temporal_fft_pos;
int fft_size;
int fft_count;
int fft_pos;
float mix_rate;
uint64_t last_fft_time;
protected:
static void _bind_methods();
public:
virtual void process(const AudioFrame *p_src_frames, AudioFrame *p_dst_frames, int p_frame_count);
Vector2 get_magnitude_for_frequency_range(float p_begin, float p_end, MagnitudeMode p_mode = MAGNITUDE_MAX) const;
};
VARIANT_ENUM_CAST(AudioEffectSpectrumAnalyzerInstance::MagnitudeMode)
class AudioEffectSpectrumAnalyzer : public AudioEffect {
GDCLASS(AudioEffectSpectrumAnalyzer, AudioEffect)
public:
enum FFT_Size {
FFT_SIZE_256,
FFT_SIZE_512,
FFT_SIZE_1024,
FFT_SIZE_2048,
FFT_SIZE_4096,
FFT_SIZE_MAX
};
public:
friend class AudioEffectSpectrumAnalyzerInstance;
float buffer_length;
float tapback_pos;
FFT_Size fft_size;
protected:
static void _bind_methods();
public:
Ref<AudioEffectInstance> instance();
void set_buffer_length(float p_seconds);
float get_buffer_length() const;
void set_tap_back_pos(float p_seconds);
float get_tap_back_pos() const;
void set_fft_size(FFT_Size);
FFT_Size get_fft_size() const;
AudioEffectSpectrumAnalyzer();
};
VARIANT_ENUM_CAST(AudioEffectSpectrumAnalyzer::FFT_Size);
#endif // AUDIO_EFFECT_SPECTRUM_ANALYZER_H
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