source: roaraudio/include/libroardsp/libroardsp.h @ 1587:9da570b3c375

Last change on this file since 1587:9da570b3c375 was 1587:9da570b3c375, checked in by phi, 15 years ago

added subs for filter swap
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
36// defines
37#define ROARDSP_MAX_FILTERS_PER_CHAIN 8
38
39#define ROARDSP_FILTER_NONE           0
40#define ROARDSP_FILTER_AMP            1
41#define ROARDSP_FILTER_LOWP           2
42#define ROARDSP_FILTER_HIGHP          3
43#define ROARDSP_FILTER_MODULATE       4
44#define ROARDSP_FILTER_QUANTIFY       5
45#define ROARDSP_FILTER_CLIP           6
46#define ROARDSP_FILTER_ADD            7
47#define ROARDSP_FILTER_DOWNMIX        8
48#define ROARDSP_FILTER_DCBLOCK        9
49#define ROARDSP_FILTER_SWAP          10
50
51// filter CTLs:
52
53#define ROARDSP_FCTL_FREQ             1
54#define ROARDSP_FCTL_TIME             2
55#define ROARDSP_FCTL_MUL              3
56#define ROARDSP_FCTL_DIV              4
57#define ROARDSP_FCTL_N                5
58#define ROARDSP_FCTL_LIMIT            6
59#define ROARDSP_FCTL_PHASE            7
60#define ROARDSP_FCTL_Q                8
61#define ROARDSP_FCTL_MODE             9
62
63// consts for filter(chain) reset:
64#define ROARDSP_RESET_NONE            0
65#define ROARDSP_RESET_FULL            1
66#define ROARDSP_RESET_STATE           2
67
68// filter specific constants:
69#define ROARDSP_DOWNMIX_LEFT          1
70#define ROARDSP_DOWNMIX_RIGHT         2
71#define ROARDSP_DOWNMIX_ARITHMETIC    3
72#define ROARDSP_DOWNMIX_RMS           4
73
74#define ROARDSP_DCBLOCK_NUMBLOCKS     100
75
76// types:
77
78struct roardsp_filter {
79 int    channels;
80 int    bits;
81 int    rate;
82 void * inst;
83 int (*calc  )(struct roardsp_filter * filter, void * data, size_t samples);
84 int (*uninit)(struct roardsp_filter * filter);
85 int (*ctl   )(struct roardsp_filter * filter, int cmd, void * data);
86 int (*reset )(struct roardsp_filter * filter, int what);
87};
88
89struct roardsp_filterchain {
90 int filters;
91 struct roardsp_filter * filter[ROARDSP_MAX_FILTERS_PER_CHAIN];
92};
93
94#ifdef ROAR_HAVE_LIBM
95struct roardsp_lowp {
96 uint32_t freq; // in mHz (0Hz..4MHz)
97 uint16_t a, b;
98 int32_t  old[ROAR_MAX_CHANNELS];
99};
100
101struct roardsp_highp {
102 uint32_t freq; // in mHz (0Hz..4MHz)
103 int32_t  a, b, c;
104 int32_t  oldout[ROAR_MAX_CHANNELS];
105 int32_t  oldin[ROAR_MAX_CHANNELS];
106};
107#endif
108
109struct roardsp_amp {
110 int32_t  mul;
111 int32_t  div;
112};
113
114struct roardsp_dcblock {
115 int cur;
116 int32_t dc[ROARDSP_DCBLOCK_NUMBLOCKS];
117};
118
119struct roardsp_swap {
120 int map[ROAR_MAX_CHANNELS];
121};
122
123// funcs:
124int    roardsp_filter_str2id(char * str);
125char * roardsp_filter_id2str(int id);
126int    roardsp_filter_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
127int    roardsp_filter_uninit(struct roardsp_filter * filter);
128int    roardsp_filter_calc  (struct roardsp_filter * filter, void * data, size_t len);
129int    roardsp_filter_ctl   (struct roardsp_filter * filter, int cmd, void * data);
130int    roardsp_filter_reset (struct roardsp_filter * filter, int what);
131
132int roardsp_fchain_init  (struct roardsp_filterchain * chain);
133int roardsp_fchain_uninit(struct roardsp_filterchain * chain);
134int roardsp_fchain_add   (struct roardsp_filterchain * chain, struct roardsp_filter * filter);
135int roardsp_fchain_calc  (struct roardsp_filterchain * chain, void * data, size_t len);
136int roardsp_fchain_reset (struct roardsp_filterchain * chain, int what);
137int roardsp_fchain_num   (struct roardsp_filterchain * chain);
138
139// filter:
140
141#ifdef ROAR_HAVE_LIBM
142int roardsp_lowp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
143int roardsp_lowp_uninit(struct roardsp_filter * filter);
144int roardsp_lowp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
145int roardsp_lowp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
146int roardsp_lowp_reset (struct roardsp_filter * filter, int what);
147
148int roardsp_highp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
149int roardsp_highp_uninit(struct roardsp_filter * filter);
150int roardsp_highp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
151int roardsp_highp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
152int roardsp_highp_reset (struct roardsp_filter * filter, int what);
153#endif
154
155int roardsp_amp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
156int roardsp_amp_uninit(struct roardsp_filter * filter);
157int roardsp_amp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
158int roardsp_amp_calc8 (struct roardsp_filter * filter, void * data, size_t samples);
159int roardsp_amp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
160int roardsp_amp_reset (struct roardsp_filter * filter, int what);
161
162int roardsp_add_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
163int roardsp_add_calc16(struct roardsp_filter * filter, void * data, size_t samples);
164int roardsp_add_reset (struct roardsp_filter * filter, int what);
165
166int roardsp_quantify_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
167int roardsp_quantify_uninit(struct roardsp_filter * filter);
168int roardsp_quantify_calc16(struct roardsp_filter * filter, void * data, size_t samples);
169int roardsp_quantify_ctl   (struct roardsp_filter * filter, int cmd, void * data);
170int roardsp_quantify_reset (struct roardsp_filter * filter, int what);
171
172int roardsp_clip_calc16(struct roardsp_filter * filter, void * data, size_t samples);
173int roardsp_clip_ctl   (struct roardsp_filter * filter, int cmd, void * data);
174int roardsp_clip_reset (struct roardsp_filter * filter, int what);
175
176int roardsp_downmix_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
177int roardsp_downmix_calc162(struct roardsp_filter * filter, void * data, size_t samples);
178int roardsp_downmix_ctl    (struct roardsp_filter * filter, int cmd, void * data);
179int roardsp_downmix_reset  (struct roardsp_filter * filter, int what);
180
181int roardsp_dcblock_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
182int roardsp_dcblock_uninit (struct roardsp_filter * filter);
183int roardsp_dcblock_calc16 (struct roardsp_filter * filter, void * data, size_t samples);
184int roardsp_dcblock_reset  (struct roardsp_filter * filter, int what);
185
186int roardsp_swap_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
187int roardsp_swap_uninit (struct roardsp_filter * filter);
188int roardsp_swap_calc162(struct roardsp_filter * filter, void * data, size_t samples);
189int roardsp_swap_ctl    (struct roardsp_filter * filter, int cmd, void * data);
190int roardsp_swap_reset  (struct roardsp_filter * filter, int what);
191
192// codecs:
193int roardsp_conv_alaw2pcm16 (int16_t * out, char * in, size_t len);
194int roardsp_conv_pcm162alaw (char * out, int16_t * in, size_t len);
195
196int roardsp_conv_mulaw2pcm16 (int16_t * out, char * in, size_t len);
197int roardsp_conv_pcm162mulaw (char * out, int16_t * in, size_t len);
198
199__END_DECLS
200
201#endif
202
203//ll
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