summaryrefslogtreecommitdiff
path: root/servers/audio/effects/audio_effect_compressor.h
blob: ef11249415059937c1043994624f5d3173c1f6b6 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
/*************************************************************************/
/*  audio_effect_compressor.h                                            */
/*************************************************************************/
/*                       This file is part of:                           */
/*                           GODOT ENGINE                                */
/*                      https://godotengine.org                          */
/*************************************************************************/
/* Copyright (c) 2007-2018 Juan Linietsky, Ariel Manzur.                 */
/* Copyright (c) 2014-2018 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 AUDIOEFFECTCOMPRESSOR_H
#define AUDIOEFFECTCOMPRESSOR_H

#include "servers/audio/audio_effect.h"

class AudioEffectCompressor;

class AudioEffectCompressorInstance : public AudioEffectInstance {
	GDCLASS(AudioEffectCompressorInstance, AudioEffectInstance)
	friend class AudioEffectCompressor;
	Ref<AudioEffectCompressor> base;

	float rundb, averatio, runratio, runmax, maxover, gr_meter;
	int current_channel;

public:
	void set_current_channel(int p_channel) { current_channel = p_channel; }
	virtual void process(const AudioFrame *p_src_frames, AudioFrame *p_dst_frames, int p_frame_count);
};

class AudioEffectCompressor : public AudioEffect {
	GDCLASS(AudioEffectCompressor, AudioEffect)

	friend class AudioEffectCompressorInstance;
	float threshold;
	float ratio;
	float gain;
	float attack_us;
	float release_ms;
	float mix;
	StringName sidechain;

protected:
	void _validate_property(PropertyInfo &property) const;
	static void _bind_methods();

public:
	Ref<AudioEffectInstance> instance();

	void set_threshold(float p_threshold);
	float get_threshold() const;

	void set_ratio(float p_ratio);
	float get_ratio() const;

	void set_gain(float p_gain);
	float get_gain() const;

	void set_attack_us(float p_attack_us);
	float get_attack_us() const;

	void set_release_ms(float p_release_ms);
	float get_release_ms() const;

	void set_mix(float p_mix);
	float get_mix() const;

	void set_sidechain(const StringName &p_sidechain);
	StringName get_sidechain() const;

	AudioEffectCompressor();
};

#endif // AUDIOEFFECTCOMPRESSOR_H