107 lines
3.9 KiB
C++
107 lines
3.9 KiB
C++
/*************************************************************************/
|
|
/* audio_effect_spectrum_analyzer.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2021 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2021 Godot Engine contributors (cf. AUTHORS.md). */
|
|
/* */
|
|
/* Permission is hereby granted, free of charge, to any person obtaining */
|
|
/* a copy of this software and associated documentation files (the */
|
|
/* "Software"), to deal in the Software without restriction, including */
|
|
/* without limitation the rights to use, copy, modify, merge, publish, */
|
|
/* distribute, sublicense, and/or sell copies of the Software, and to */
|
|
/* permit persons to whom the Software is furnished to do so, subject to */
|
|
/* the following conditions: */
|
|
/* */
|
|
/* The above copyright notice and this permission notice shall be */
|
|
/* included in all copies or substantial portions of the Software. */
|
|
/* */
|
|
/* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, */
|
|
/* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF */
|
|
/* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.*/
|
|
/* IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY */
|
|
/* CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, */
|
|
/* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE */
|
|
/* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE. */
|
|
/*************************************************************************/
|
|
|
|
#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) override;
|
|
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 FFTSize {
|
|
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;
|
|
FFTSize fft_size;
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
|
|
public:
|
|
Ref<AudioEffectInstance> instantiate() override;
|
|
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(FFTSize);
|
|
FFTSize get_fft_size() const;
|
|
|
|
AudioEffectSpectrumAnalyzer();
|
|
};
|
|
|
|
VARIANT_ENUM_CAST(AudioEffectSpectrumAnalyzer::FFTSize);
|
|
|
|
#endif // AUDIO_EFFECT_SPECTRUM_ANALYZER_H
|