source: roaraudio/include/libroardsp/libroardsp.h @ 2169:6fafb169e3a2

Last change on this file since 2169:6fafb169e3a2 was 2169:6fafb169e3a2, checked in by phi, 15 years ago

moved transcode.[ch] from roarclicnts to libroardsp
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#include "remove.h"
38#include "transcode.h"
39
40// defines
41#define ROARDSP_MAX_FILTERS_PER_CHAIN 8
42
43#define ROARDSP_FILTER_NONE           0
44#define ROARDSP_FILTER_AMP            1
45#define ROARDSP_FILTER_LOWP           2
46#define ROARDSP_FILTER_HIGHP          3
47#define ROARDSP_FILTER_MODULATE       4
48#define ROARDSP_FILTER_QUANTIFY       5
49#define ROARDSP_FILTER_CLIP           6
50#define ROARDSP_FILTER_ADD            7
51#define ROARDSP_FILTER_DOWNMIX        8
52#define ROARDSP_FILTER_DCBLOCK        9
53#define ROARDSP_FILTER_SWAP          10
54
55// filter CTLs:
56
57#define ROARDSP_FCTL_FREQ             1
58#define ROARDSP_FCTL_TIME             2
59#define ROARDSP_FCTL_MUL              3
60#define ROARDSP_FCTL_DIV              4
61#define ROARDSP_FCTL_N                5
62#define ROARDSP_FCTL_LIMIT            6
63#define ROARDSP_FCTL_PHASE            7
64#define ROARDSP_FCTL_Q                8
65#define ROARDSP_FCTL_MODE             9
66
67// consts for filter(chain) reset:
68#define ROARDSP_RESET_NONE            0
69#define ROARDSP_RESET_FULL            1
70#define ROARDSP_RESET_STATE           2
71
72// filter specific constants:
73#define ROARDSP_DOWNMIX_LEFT          1
74#define ROARDSP_DOWNMIX_RIGHT         2
75#define ROARDSP_DOWNMIX_ARITHMETIC    3
76#define ROARDSP_DOWNMIX_RMS           4
77
78#define ROARDSP_DCBLOCK_NUMBLOCKS     100
79
80// types:
81
82struct roardsp_filter {
83 int    channels;
84 int    bits;
85 int    rate;
86 void * inst;
87 int (*calc  )(struct roardsp_filter * filter, void * data, size_t samples);
88 int (*uninit)(struct roardsp_filter * filter);
89 int (*ctl   )(struct roardsp_filter * filter, int cmd, void * data);
90 int (*reset )(struct roardsp_filter * filter, int what);
91};
92
93struct roardsp_filterchain {
94 int filters;
95 struct roardsp_filter * filter[ROARDSP_MAX_FILTERS_PER_CHAIN];
96};
97
98#ifdef ROAR_HAVE_LIBM
99struct roardsp_lowp {
100 uint32_t freq; // in mHz (0Hz..4MHz)
101 uint16_t a, b;
102 int32_t  old[ROAR_MAX_CHANNELS];
103};
104
105struct roardsp_highp {
106 uint32_t freq; // in mHz (0Hz..4MHz)
107 int32_t  a, b, c;
108 int32_t  oldout[ROAR_MAX_CHANNELS];
109 int32_t  oldin[ROAR_MAX_CHANNELS];
110};
111#endif
112
113struct roardsp_amp {
114 int32_t  mul;
115 int32_t  div;
116};
117
118struct roardsp_dcblock {
119 int cur;
120 int32_t dc[ROARDSP_DCBLOCK_NUMBLOCKS];
121};
122
123struct roardsp_swap {
124 int map[ROAR_MAX_CHANNELS];
125};
126
127// funcs:
128int    roardsp_filter_str2id(char * str);
129char * roardsp_filter_id2str(int id);
130int    roardsp_filter_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
131int    roardsp_filter_uninit(struct roardsp_filter * filter);
132int    roardsp_filter_calc  (struct roardsp_filter * filter, void * data, size_t len);
133int    roardsp_filter_ctl   (struct roardsp_filter * filter, int cmd, void * data);
134int    roardsp_filter_reset (struct roardsp_filter * filter, int what);
135
136int roardsp_fchain_init  (struct roardsp_filterchain * chain);
137int roardsp_fchain_uninit(struct roardsp_filterchain * chain);
138int roardsp_fchain_add   (struct roardsp_filterchain * chain, struct roardsp_filter * filter);
139int roardsp_fchain_calc  (struct roardsp_filterchain * chain, void * data, size_t len);
140int roardsp_fchain_reset (struct roardsp_filterchain * chain, int what);
141int roardsp_fchain_num   (struct roardsp_filterchain * chain);
142
143// filter:
144
145#ifdef ROAR_HAVE_LIBM
146int roardsp_lowp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
147int roardsp_lowp_uninit(struct roardsp_filter * filter);
148int roardsp_lowp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
149int roardsp_lowp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
150int roardsp_lowp_reset (struct roardsp_filter * filter, int what);
151
152int roardsp_highp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
153int roardsp_highp_uninit(struct roardsp_filter * filter);
154int roardsp_highp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
155int roardsp_highp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
156int roardsp_highp_reset (struct roardsp_filter * filter, int what);
157#endif
158
159int roardsp_amp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
160int roardsp_amp_uninit(struct roardsp_filter * filter);
161int roardsp_amp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
162int roardsp_amp_calc8 (struct roardsp_filter * filter, void * data, size_t samples);
163int roardsp_amp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
164int roardsp_amp_reset (struct roardsp_filter * filter, int what);
165
166int roardsp_add_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
167int roardsp_add_calc16(struct roardsp_filter * filter, void * data, size_t samples);
168int roardsp_add_reset (struct roardsp_filter * filter, int what);
169
170int roardsp_quantify_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
171int roardsp_quantify_uninit(struct roardsp_filter * filter);
172int roardsp_quantify_calc16(struct roardsp_filter * filter, void * data, size_t samples);
173int roardsp_quantify_ctl   (struct roardsp_filter * filter, int cmd, void * data);
174int roardsp_quantify_reset (struct roardsp_filter * filter, int what);
175
176int roardsp_clip_calc16(struct roardsp_filter * filter, void * data, size_t samples);
177int roardsp_clip_ctl   (struct roardsp_filter * filter, int cmd, void * data);
178int roardsp_clip_reset (struct roardsp_filter * filter, int what);
179
180int roardsp_downmix_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
181int roardsp_downmix_calc162(struct roardsp_filter * filter, void * data, size_t samples);
182int roardsp_downmix_ctl    (struct roardsp_filter * filter, int cmd, void * data);
183int roardsp_downmix_reset  (struct roardsp_filter * filter, int what);
184
185int roardsp_dcblock_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
186int roardsp_dcblock_uninit (struct roardsp_filter * filter);
187int roardsp_dcblock_calc16 (struct roardsp_filter * filter, void * data, size_t samples);
188int roardsp_dcblock_reset  (struct roardsp_filter * filter, int what);
189
190int roardsp_swap_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
191int roardsp_swap_uninit (struct roardsp_filter * filter);
192int roardsp_swap_calc162(struct roardsp_filter * filter, void * data, size_t samples);
193int roardsp_swap_ctl    (struct roardsp_filter * filter, int cmd, void * data);
194int roardsp_swap_reset  (struct roardsp_filter * filter, int what);
195
196// codecs:
197int roardsp_conv_alaw2pcm16 (int16_t * out, char * in, size_t len);
198int roardsp_conv_pcm162alaw (char * out, int16_t * in, size_t len);
199
200int roardsp_conv_mulaw2pcm16 (int16_t * out, char * in, size_t len);
201int roardsp_conv_pcm162mulaw (char * out, int16_t * in, size_t len);
202
203__END_DECLS
204
205#endif
206
207//ll
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