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