source: roaraudio/include/libroardsp/libroardsp.h @ 1368:70ed82d15e83

Last change on this file since 1368:70ed82d15e83 was 1368:70ed82d15e83, checked in by phi, 15 years ago

moved poly.[ch] from libroar to libroardsp
File size: 7.1 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
35// defines
36#define ROARDSP_MAX_FILTERS_PER_CHAIN 8
37
38#define ROARDSP_FILTER_NONE           0
39#define ROARDSP_FILTER_AMP            1
40#define ROARDSP_FILTER_LOWP           2
41#define ROARDSP_FILTER_HIGHP          3
42#define ROARDSP_FILTER_MODULATE       4
43#define ROARDSP_FILTER_QUANTIFY       5
44#define ROARDSP_FILTER_CLIP           6
45#define ROARDSP_FILTER_ADD            7
46#define ROARDSP_FILTER_DOWNMIX        8
47#define ROARDSP_FILTER_DCBLOCK        9
48
49// filter CTLs:
50
51#define ROARDSP_FCTL_FREQ             1
52#define ROARDSP_FCTL_TIME             2
53#define ROARDSP_FCTL_MUL              3
54#define ROARDSP_FCTL_DIV              4
55#define ROARDSP_FCTL_N                5
56#define ROARDSP_FCTL_LIMIT            6
57#define ROARDSP_FCTL_PHASE            7
58#define ROARDSP_FCTL_Q                8
59#define ROARDSP_FCTL_MODE             9
60
61// consts for filter(chain) reset:
62#define ROARDSP_RESET_NONE            0
63#define ROARDSP_RESET_FULL            1
64#define ROARDSP_RESET_STATE           2
65
66// filter specific constants:
67#define ROARDSP_DOWNMIX_LEFT          1
68#define ROARDSP_DOWNMIX_RIGHT         2
69#define ROARDSP_DOWNMIX_ARITHMETIC    3
70#define ROARDSP_DOWNMIX_RMS           4
71
72#define ROARDSP_DCBLOCK_NUMBLOCKS     100
73
74// types:
75
76struct roardsp_filter {
77 int    channels;
78 int    bits;
79 int    rate;
80 void * inst;
81 int (*calc  )(struct roardsp_filter * filter, void * data, size_t samples);
82 int (*uninit)(struct roardsp_filter * filter);
83 int (*ctl   )(struct roardsp_filter * filter, int cmd, void * data);
84 int (*reset )(struct roardsp_filter * filter, int what);
85};
86
87struct roardsp_filterchain {
88 int filters;
89 struct roardsp_filter * filter[ROARDSP_MAX_FILTERS_PER_CHAIN];
90};
91
92#ifdef ROAR_HAVE_LIBM
93struct roardsp_lowp {
94 uint32_t freq; // in mHz (0Hz..4MHz)
95 uint16_t a, b;
96 int32_t  old[ROAR_MAX_CHANNELS];
97};
98
99struct roardsp_highp {
100 uint32_t freq; // in mHz (0Hz..4MHz)
101 int32_t  a, b, c;
102 int32_t  oldout[ROAR_MAX_CHANNELS];
103 int32_t  oldin[ROAR_MAX_CHANNELS];
104};
105#endif
106
107struct roardsp_amp {
108 int32_t  mul;
109 int32_t  div;
110};
111
112struct roardsp_dcblock {
113 int cur;
114 int32_t dc[ROARDSP_DCBLOCK_NUMBLOCKS];
115};
116
117// funcs:
118int    roardsp_filter_str2id(char * str);
119char * roardsp_filter_id2str(int id);
120int    roardsp_filter_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
121int    roardsp_filter_uninit(struct roardsp_filter * filter);
122int    roardsp_filter_calc  (struct roardsp_filter * filter, void * data, size_t len);
123int    roardsp_filter_ctl   (struct roardsp_filter * filter, int cmd, void * data);
124int    roardsp_filter_reset (struct roardsp_filter * filter, int what);
125
126int roardsp_fchain_init  (struct roardsp_filterchain * chain);
127int roardsp_fchain_uninit(struct roardsp_filterchain * chain);
128int roardsp_fchain_add   (struct roardsp_filterchain * chain, struct roardsp_filter * filter);
129int roardsp_fchain_calc  (struct roardsp_filterchain * chain, void * data, size_t len);
130int roardsp_fchain_reset (struct roardsp_filterchain * chain, int what);
131int roardsp_fchain_num   (struct roardsp_filterchain * chain);
132
133// filter:
134
135#ifdef ROAR_HAVE_LIBM
136int roardsp_lowp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
137int roardsp_lowp_uninit(struct roardsp_filter * filter);
138int roardsp_lowp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
139int roardsp_lowp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
140int roardsp_lowp_reset (struct roardsp_filter * filter, int what);
141
142int roardsp_highp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
143int roardsp_highp_uninit(struct roardsp_filter * filter);
144int roardsp_highp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
145int roardsp_highp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
146int roardsp_highp_reset (struct roardsp_filter * filter, int what);
147#endif
148
149int roardsp_amp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
150int roardsp_amp_uninit(struct roardsp_filter * filter);
151int roardsp_amp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
152int roardsp_amp_calc8 (struct roardsp_filter * filter, void * data, size_t samples);
153int roardsp_amp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
154int roardsp_amp_reset (struct roardsp_filter * filter, int what);
155
156int roardsp_add_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
157int roardsp_add_calc16(struct roardsp_filter * filter, void * data, size_t samples);
158int roardsp_add_reset (struct roardsp_filter * filter, int what);
159
160int roardsp_quantify_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
161int roardsp_quantify_uninit(struct roardsp_filter * filter);
162int roardsp_quantify_calc16(struct roardsp_filter * filter, void * data, size_t samples);
163int roardsp_quantify_ctl   (struct roardsp_filter * filter, int cmd, void * data);
164int roardsp_quantify_reset (struct roardsp_filter * filter, int what);
165
166int roardsp_clip_calc16(struct roardsp_filter * filter, void * data, size_t samples);
167int roardsp_clip_ctl   (struct roardsp_filter * filter, int cmd, void * data);
168int roardsp_clip_reset (struct roardsp_filter * filter, int what);
169
170int roardsp_downmix_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
171int roardsp_downmix_calc162(struct roardsp_filter * filter, void * data, size_t samples);
172int roardsp_downmix_ctl    (struct roardsp_filter * filter, int cmd, void * data);
173int roardsp_downmix_reset  (struct roardsp_filter * filter, int what);
174
175int roardsp_dcblock_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
176int roardsp_dcblock_uninit (struct roardsp_filter * filter);
177int roardsp_dcblock_calc16 (struct roardsp_filter * filter, void * data, size_t samples);
178int roardsp_dcblock_reset  (struct roardsp_filter * filter, int what);
179
180// codecs:
181int roardsp_conv_alaw2pcm16 (int16_t * out, char * in, size_t len);
182int roardsp_conv_pcm162alaw (char * out, int16_t * in, size_t len);
183
184int roardsp_conv_mulaw2pcm16 (int16_t * out, char * in, size_t len);
185int roardsp_conv_pcm162mulaw (char * out, int16_t * in, size_t len);
186
187__END_DECLS
188
189#endif
190
191//ll
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