111 lines
1.8 KiB
C++
111 lines
1.8 KiB
C++
//
|
|
// C++ Interface: reverb
|
|
//
|
|
// Description:
|
|
//
|
|
//
|
|
// Author: Juan Linietsky <reduzio@gmail.com>, (C) 2006
|
|
//
|
|
// Copyright: See COPYING file that comes with this distribution
|
|
//
|
|
//
|
|
#ifndef REVERB_H
|
|
#define REVERB_H
|
|
|
|
#include "typedefs.h"
|
|
#include "os/memory.h"
|
|
#include "audio_frame.h"
|
|
|
|
class Reverb {
|
|
public:
|
|
enum {
|
|
INPUT_BUFFER_MAX_SIZE=1024,
|
|
|
|
};
|
|
private:
|
|
enum {
|
|
|
|
MAX_COMBS=8,
|
|
MAX_ALLPASS=4,
|
|
MAX_ECHO_MS=500
|
|
|
|
};
|
|
|
|
|
|
|
|
static const float comb_tunings[MAX_COMBS];
|
|
static const float allpass_tunings[MAX_ALLPASS];
|
|
|
|
struct Comb {
|
|
|
|
int size;
|
|
float *buffer;
|
|
float feedback;
|
|
float damp; //lowpass
|
|
float damp_h; //history
|
|
int pos;
|
|
int extra_spread_frames;
|
|
|
|
Comb() { size=0; buffer=0; feedback=0; damp_h=0; pos=0; }
|
|
};
|
|
|
|
struct AllPass {
|
|
|
|
int size;
|
|
float *buffer;
|
|
int pos;
|
|
int extra_spread_frames;
|
|
AllPass() { size=0; buffer=0; pos=0; }
|
|
};
|
|
|
|
Comb comb[MAX_COMBS];
|
|
AllPass allpass[MAX_ALLPASS];
|
|
float *input_buffer;
|
|
float *echo_buffer;
|
|
int echo_buffer_size;
|
|
int echo_buffer_pos;
|
|
|
|
float hpf_h1,hpf_h2;
|
|
|
|
|
|
struct Parameters {
|
|
|
|
float room_size;
|
|
float damp;
|
|
float wet;
|
|
float dry;
|
|
float mix_rate;
|
|
float extra_spread_base;
|
|
float extra_spread;
|
|
float predelay;
|
|
float predelay_fb;
|
|
float hpf;
|
|
} params;
|
|
|
|
void configure_buffers();
|
|
void update_parameters();
|
|
void clear_buffers();
|
|
public:
|
|
|
|
void set_room_size(float p_size);
|
|
void set_damp(float p_damp);
|
|
void set_wet(float p_wet);
|
|
void set_dry(float p_dry);
|
|
void set_predelay(float p_predelay); // in ms
|
|
void set_predelay_feedback(float p_predelay_fb); // in ms
|
|
void set_highpass(float p_frq);
|
|
void set_mix_rate(float p_mix_rate);
|
|
void set_extra_spread(float p_spread);
|
|
void set_extra_spread_base(float p_sec);
|
|
|
|
void process(float *p_src,float *p_dst,int p_frames);
|
|
|
|
Reverb();
|
|
|
|
~Reverb();
|
|
|
|
};
|
|
|
|
|
|
|
|
#endif
|