source: roaraudio/include/libroardsp/libroardsp.h @ 2026:3e26fdd5c7bd

Last change on this file since 2026:3e26fdd5c7bd was 2026:3e26fdd5c7bd, checked in by phi, 15 years ago

added simple structure for point coordinates
File size: 7.6 KB
Line 
1//libroardsp.h:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - August 2008
5 *
6 *  This file is part of libroardsp a part of RoarAudio,
7 *  a cross-platform sound system for both, home and professional use.
8 *  See README for details.
9 *
10 *  This file is free software; you can redistribute it and/or modify
11 *  it under the terms of the GNU General Public License version 3
12 *  as published by the Free Software Foundation.
13 *
14 *  libroardsp is distributed in the hope that it will be useful,
15 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
16 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
17 *  GNU General Public License for more details.
18 *
19 *  You should have received a copy of the GNU General Public License
20 *  along with this software; see the file COPYING.  If not, write to
21 *  the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA.
22 *
23 */
24
25#ifndef _LIBROARDSP_H_
26#define _LIBROARDSP_H_
27
28#include <roaraudio.h>
29
30__BEGIN_DECLS
31
32#include "midi.h"
33#include "poly.h"
34#include "convert.h"
35#include "midside.h"
36#include "point.h"
37
38// defines
39#define ROARDSP_MAX_FILTERS_PER_CHAIN 8
40
41#define ROARDSP_FILTER_NONE           0
42#define ROARDSP_FILTER_AMP            1
43#define ROARDSP_FILTER_LOWP           2
44#define ROARDSP_FILTER_HIGHP          3
45#define ROARDSP_FILTER_MODULATE       4
46#define ROARDSP_FILTER_QUANTIFY       5
47#define ROARDSP_FILTER_CLIP           6
48#define ROARDSP_FILTER_ADD            7
49#define ROARDSP_FILTER_DOWNMIX        8
50#define ROARDSP_FILTER_DCBLOCK        9
51#define ROARDSP_FILTER_SWAP          10
52
53// filter CTLs:
54
55#define ROARDSP_FCTL_FREQ             1
56#define ROARDSP_FCTL_TIME             2
57#define ROARDSP_FCTL_MUL              3
58#define ROARDSP_FCTL_DIV              4
59#define ROARDSP_FCTL_N                5
60#define ROARDSP_FCTL_LIMIT            6
61#define ROARDSP_FCTL_PHASE            7
62#define ROARDSP_FCTL_Q                8
63#define ROARDSP_FCTL_MODE             9
64
65// consts for filter(chain) reset:
66#define ROARDSP_RESET_NONE            0
67#define ROARDSP_RESET_FULL            1
68#define ROARDSP_RESET_STATE           2
69
70// filter specific constants:
71#define ROARDSP_DOWNMIX_LEFT          1
72#define ROARDSP_DOWNMIX_RIGHT         2
73#define ROARDSP_DOWNMIX_ARITHMETIC    3
74#define ROARDSP_DOWNMIX_RMS           4
75
76#define ROARDSP_DCBLOCK_NUMBLOCKS     100
77
78// types:
79
80struct roardsp_filter {
81 int    channels;
82 int    bits;
83 int    rate;
84 void * inst;
85 int (*calc  )(struct roardsp_filter * filter, void * data, size_t samples);
86 int (*uninit)(struct roardsp_filter * filter);
87 int (*ctl   )(struct roardsp_filter * filter, int cmd, void * data);
88 int (*reset )(struct roardsp_filter * filter, int what);
89};
90
91struct roardsp_filterchain {
92 int filters;
93 struct roardsp_filter * filter[ROARDSP_MAX_FILTERS_PER_CHAIN];
94};
95
96#ifdef ROAR_HAVE_LIBM
97struct roardsp_lowp {
98 uint32_t freq; // in mHz (0Hz..4MHz)
99 uint16_t a, b;
100 int32_t  old[ROAR_MAX_CHANNELS];
101};
102
103struct roardsp_highp {
104 uint32_t freq; // in mHz (0Hz..4MHz)
105 int32_t  a, b, c;
106 int32_t  oldout[ROAR_MAX_CHANNELS];
107 int32_t  oldin[ROAR_MAX_CHANNELS];
108};
109#endif
110
111struct roardsp_amp {
112 int32_t  mul;
113 int32_t  div;
114};
115
116struct roardsp_dcblock {
117 int cur;
118 int32_t dc[ROARDSP_DCBLOCK_NUMBLOCKS];
119};
120
121struct roardsp_swap {
122 int map[ROAR_MAX_CHANNELS];
123};
124
125// funcs:
126int    roardsp_filter_str2id(char * str);
127char * roardsp_filter_id2str(int id);
128int    roardsp_filter_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
129int    roardsp_filter_uninit(struct roardsp_filter * filter);
130int    roardsp_filter_calc  (struct roardsp_filter * filter, void * data, size_t len);
131int    roardsp_filter_ctl   (struct roardsp_filter * filter, int cmd, void * data);
132int    roardsp_filter_reset (struct roardsp_filter * filter, int what);
133
134int roardsp_fchain_init  (struct roardsp_filterchain * chain);
135int roardsp_fchain_uninit(struct roardsp_filterchain * chain);
136int roardsp_fchain_add   (struct roardsp_filterchain * chain, struct roardsp_filter * filter);
137int roardsp_fchain_calc  (struct roardsp_filterchain * chain, void * data, size_t len);
138int roardsp_fchain_reset (struct roardsp_filterchain * chain, int what);
139int roardsp_fchain_num   (struct roardsp_filterchain * chain);
140
141// filter:
142
143#ifdef ROAR_HAVE_LIBM
144int roardsp_lowp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
145int roardsp_lowp_uninit(struct roardsp_filter * filter);
146int roardsp_lowp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
147int roardsp_lowp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
148int roardsp_lowp_reset (struct roardsp_filter * filter, int what);
149
150int roardsp_highp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
151int roardsp_highp_uninit(struct roardsp_filter * filter);
152int roardsp_highp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
153int roardsp_highp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
154int roardsp_highp_reset (struct roardsp_filter * filter, int what);
155#endif
156
157int roardsp_amp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
158int roardsp_amp_uninit(struct roardsp_filter * filter);
159int roardsp_amp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
160int roardsp_amp_calc8 (struct roardsp_filter * filter, void * data, size_t samples);
161int roardsp_amp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
162int roardsp_amp_reset (struct roardsp_filter * filter, int what);
163
164int roardsp_add_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
165int roardsp_add_calc16(struct roardsp_filter * filter, void * data, size_t samples);
166int roardsp_add_reset (struct roardsp_filter * filter, int what);
167
168int roardsp_quantify_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
169int roardsp_quantify_uninit(struct roardsp_filter * filter);
170int roardsp_quantify_calc16(struct roardsp_filter * filter, void * data, size_t samples);
171int roardsp_quantify_ctl   (struct roardsp_filter * filter, int cmd, void * data);
172int roardsp_quantify_reset (struct roardsp_filter * filter, int what);
173
174int roardsp_clip_calc16(struct roardsp_filter * filter, void * data, size_t samples);
175int roardsp_clip_ctl   (struct roardsp_filter * filter, int cmd, void * data);
176int roardsp_clip_reset (struct roardsp_filter * filter, int what);
177
178int roardsp_downmix_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
179int roardsp_downmix_calc162(struct roardsp_filter * filter, void * data, size_t samples);
180int roardsp_downmix_ctl    (struct roardsp_filter * filter, int cmd, void * data);
181int roardsp_downmix_reset  (struct roardsp_filter * filter, int what);
182
183int roardsp_dcblock_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
184int roardsp_dcblock_uninit (struct roardsp_filter * filter);
185int roardsp_dcblock_calc16 (struct roardsp_filter * filter, void * data, size_t samples);
186int roardsp_dcblock_reset  (struct roardsp_filter * filter, int what);
187
188int roardsp_swap_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
189int roardsp_swap_uninit (struct roardsp_filter * filter);
190int roardsp_swap_calc162(struct roardsp_filter * filter, void * data, size_t samples);
191int roardsp_swap_ctl    (struct roardsp_filter * filter, int cmd, void * data);
192int roardsp_swap_reset  (struct roardsp_filter * filter, int what);
193
194// codecs:
195int roardsp_conv_alaw2pcm16 (int16_t * out, char * in, size_t len);
196int roardsp_conv_pcm162alaw (char * out, int16_t * in, size_t len);
197
198int roardsp_conv_mulaw2pcm16 (int16_t * out, char * in, size_t len);
199int roardsp_conv_pcm162mulaw (char * out, int16_t * in, size_t len);
200
201__END_DECLS
202
203#endif
204
205//ll
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