a7f49ac9a1
Happy new year to the wonderful Godot community! We're starting a new decade with a well-established, non-profit, free and open source game engine, and tons of further improvements in the pipeline from hundreds of contributors. Godot will keep getting better, and we're looking forward to all the games that the community will keep developing and releasing with it.
108 lines
3.9 KiB
C++
108 lines
3.9 KiB
C++
/*************************************************************************/
|
|
/* audio_effect_spectrum_analyzer.h */
|
|
/*************************************************************************/
|
|
/* This file is part of: */
|
|
/* GODOT ENGINE */
|
|
/* https://godotengine.org */
|
|
/*************************************************************************/
|
|
/* Copyright (c) 2007-2020 Juan Linietsky, Ariel Manzur. */
|
|
/* Copyright (c) 2014-2020 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);
|
|
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
|