0be6d925dc
Which means that reduz' beloved style which we all became used to will now be changed automatically to remove the first empty line. This makes us lean closer to 1TBS (the one true brace style) instead of hybridating it with some Allman-inspired spacing. There's still the case of braces around single-statement blocks that needs to be addressed (but clang-format can't help with that, but clang-tidy may if we agree about it). Part of #33027.
129 lines
4.6 KiB
C++
129 lines
4.6 KiB
C++
/*************************************************************************/
|
|
/* audio_effect_pitch_shift.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_PITCH_SHIFT_H
|
|
#define AUDIO_EFFECT_PITCH_SHIFT_H
|
|
|
|
#include "servers/audio/audio_effect.h"
|
|
|
|
class SMBPitchShift {
|
|
enum {
|
|
MAX_FRAME_LENGTH = 8192
|
|
};
|
|
|
|
float gInFIFO[MAX_FRAME_LENGTH];
|
|
float gOutFIFO[MAX_FRAME_LENGTH];
|
|
float gFFTworksp[2 * MAX_FRAME_LENGTH];
|
|
float gLastPhase[MAX_FRAME_LENGTH / 2 + 1];
|
|
float gSumPhase[MAX_FRAME_LENGTH / 2 + 1];
|
|
float gOutputAccum[2 * MAX_FRAME_LENGTH];
|
|
float gAnaFreq[MAX_FRAME_LENGTH];
|
|
float gAnaMagn[MAX_FRAME_LENGTH];
|
|
float gSynFreq[MAX_FRAME_LENGTH];
|
|
float gSynMagn[MAX_FRAME_LENGTH];
|
|
long gRover;
|
|
|
|
void smbFft(float *fftBuffer, long fftFrameSize, long sign);
|
|
|
|
public:
|
|
void PitchShift(float pitchShift, long numSampsToProcess, long fftFrameSize, long osamp, float sampleRate, float *indata, float *outdata, int stride);
|
|
|
|
SMBPitchShift() {
|
|
gRover = 0;
|
|
memset(gInFIFO, 0, MAX_FRAME_LENGTH * sizeof(float));
|
|
memset(gOutFIFO, 0, MAX_FRAME_LENGTH * sizeof(float));
|
|
memset(gFFTworksp, 0, 2 * MAX_FRAME_LENGTH * sizeof(float));
|
|
memset(gLastPhase, 0, (MAX_FRAME_LENGTH / 2 + 1) * sizeof(float));
|
|
memset(gSumPhase, 0, (MAX_FRAME_LENGTH / 2 + 1) * sizeof(float));
|
|
memset(gOutputAccum, 0, 2 * MAX_FRAME_LENGTH * sizeof(float));
|
|
memset(gAnaFreq, 0, MAX_FRAME_LENGTH * sizeof(float));
|
|
memset(gAnaMagn, 0, MAX_FRAME_LENGTH * sizeof(float));
|
|
}
|
|
};
|
|
|
|
class AudioEffectPitchShift;
|
|
|
|
class AudioEffectPitchShiftInstance : public AudioEffectInstance {
|
|
GDCLASS(AudioEffectPitchShiftInstance, AudioEffectInstance);
|
|
friend class AudioEffectPitchShift;
|
|
Ref<AudioEffectPitchShift> base;
|
|
|
|
int fft_size;
|
|
SMBPitchShift shift_l;
|
|
SMBPitchShift shift_r;
|
|
|
|
public:
|
|
virtual void process(const AudioFrame *p_src_frames, AudioFrame *p_dst_frames, int p_frame_count);
|
|
};
|
|
|
|
class AudioEffectPitchShift : public AudioEffect {
|
|
GDCLASS(AudioEffectPitchShift, AudioEffect);
|
|
|
|
public:
|
|
friend class AudioEffectPitchShiftInstance;
|
|
|
|
enum FFT_Size {
|
|
FFT_SIZE_256,
|
|
FFT_SIZE_512,
|
|
FFT_SIZE_1024,
|
|
FFT_SIZE_2048,
|
|
FFT_SIZE_4096,
|
|
FFT_SIZE_MAX
|
|
};
|
|
|
|
float pitch_scale;
|
|
int oversampling;
|
|
FFT_Size fft_size;
|
|
float wet;
|
|
float dry;
|
|
bool filter;
|
|
|
|
protected:
|
|
static void _bind_methods();
|
|
|
|
public:
|
|
Ref<AudioEffectInstance> instance();
|
|
|
|
void set_pitch_scale(float p_pitch_scale);
|
|
float get_pitch_scale() const;
|
|
|
|
void set_oversampling(int p_oversampling);
|
|
int get_oversampling() const;
|
|
|
|
void set_fft_size(FFT_Size);
|
|
FFT_Size get_fft_size() const;
|
|
|
|
AudioEffectPitchShift();
|
|
};
|
|
|
|
VARIANT_ENUM_CAST(AudioEffectPitchShift::FFT_Size);
|
|
|
|
#endif // AUDIO_EFFECT_PITCH_SHIFT_H
|