source: roaraudio/include/libroardsp/filter.h @ 3321:6312ff4bec71

Last change on this file since 3321:6312ff4bec71 was 3321:6312ff4bec71, checked in by phi, 14 years ago

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1//filter.h:
2
3/*
4 *      Copyright (C) Philipp 'ph3-der-loewe' Schafft - 2008-2010
5 *
6 *  This file is part of libroar 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 *  libroar 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 *  NOTE for everyone want's to change something and send patches:
24 *  read README and HACKING! There a addition information on
25 *  the license of this document you need to read before you send
26 *  any patches.
27 *
28 *  NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc
29 *  or libpulse*:
30 *  The libs libroaresd, libroararts and libroarpulse link this lib
31 *  and are therefore GPL. Because of this it may be illigal to use
32 *  them with any software that uses libesd, libartsc or libpulse*.
33 */
34
35#ifndef _LIBROARDSP_FILTER_H_
36#define _LIBROARDSP_FILTER_H_
37
38#include "libroardsp.h"
39
40#define ROARDSP_FILTER_NONE           0
41#define ROARDSP_FILTER_AMP            1
42#define ROARDSP_FILTER_LOWP           2
43#define ROARDSP_FILTER_HIGHP          3
44#define ROARDSP_FILTER_MODULATE       4
45#define ROARDSP_FILTER_QUANTIFY       5
46#define ROARDSP_FILTER_CLIP           6
47#define ROARDSP_FILTER_ADD            7
48#define ROARDSP_FILTER_DOWNMIX        8
49#define ROARDSP_FILTER_DCBLOCK        9
50#define ROARDSP_FILTER_SWAP          10
51#define ROARDSP_FILTER_SPEEX_PREP    11
52#define ROARDSP_FILTER_AGC           12
53
54// filter CTLs:
55
56#define ROARDSP_FCTL_FREQ             1 /* float   */
57#define ROARDSP_FCTL_TIME             2
58#define ROARDSP_FCTL_MUL              3 /* int32_t */
59#define ROARDSP_FCTL_DIV              4 /* int32_t */
60#define ROARDSP_FCTL_N                5 /* int32_t */
61#define ROARDSP_FCTL_LIMIT            6 /* int32_t */
62#define ROARDSP_FCTL_PHASE            7
63#define ROARDSP_FCTL_Q                8 /* int32_t */
64#define ROARDSP_FCTL_MODE             9 /* int32_t */
65#define ROARDSP_FCTL_PACKET_SIZE     10 /* size_t  */
66
67// consts for filter flags:
68#define ROARDSP_FFLAG_NONE            0x0000
69#define ROARDSP_FFLAG_FREE            0x0001
70
71// consts for filter(chain) reset:
72#define ROARDSP_RESET_NONE            0
73#define ROARDSP_RESET_FULL            1
74#define ROARDSP_RESET_STATE           2
75
76// filter specific constants:
77#define ROARDSP_DOWNMIX_LEFT          1
78#define ROARDSP_DOWNMIX_RIGHT         2
79#define ROARDSP_DOWNMIX_ARITHMETIC    3
80#define ROARDSP_DOWNMIX_RMS           4
81
82#define ROARDSP_DCBLOCK_NUMBLOCKS     100
83
84
85#define ROARDSP_SPEEX_PREP_ON          0x0001
86#define ROARDSP_SPEEX_PREP_OFF         0x0002
87#define ROARDSP_SPEEX_PREP_MASK        (ROARDSP_SPEEX_PREP_ON|ROARDSP_SPEEX_PREP_OFF)
88
89// Config Bit Vector
90#define ROARDSP_SPEEX_PREP_CBV(opt,sw) ((sw)<<((opt)*2))
91#define ROARDSP_SPEEX_PREP_CTB(opt,val) (((val) & ROARDSP_SPEEX_PREP_CBV((opt),ROARDSP_SPEEX_PREP_MASK)) >> ((opt)*2))
92
93#define ROARDSP_SPEEX_PREP_DENOISE     0
94#define ROARDSP_SPEEX_PREP_AGC         1
95#define ROARDSP_SPEEX_PREP_VAD         2
96
97#define ROARDSP_SPEEX_PREP_DENOISE_ON  ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_DENOISE, ROARDSP_SPEEX_PREP_ON)
98#define ROARDSP_SPEEX_PREP_DENOISE_OFF ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_DENOISE, ROARDSP_SPEEX_PREP_OFF)
99#define ROARDSP_SPEEX_PREP_AGC_ON      ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_AGC, ROARDSP_SPEEX_PREP_ON)
100#define ROARDSP_SPEEX_PREP_AGC_OFF     ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_AGC, ROARDSP_SPEEX_PREP_OFF)
101#define ROARDSP_SPEEX_PREP_VAD_ON      ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_VAD, ROARDSP_SPEEX_PREP_ON)
102#define ROARDSP_SPEEX_PREP_VAD_OFF     ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_VAD, ROARDSP_SPEEX_PREP_OFF)
103
104
105// types:
106
107struct roardsp_filter {
108 int    channels;
109 int    bits;
110 int    rate;
111 void * inst;
112 uint_least16_t flags;
113 int (*calc  )(struct roardsp_filter * filter, void * data, size_t samples);
114 int (*uninit)(struct roardsp_filter * filter);
115 int (*ctl   )(struct roardsp_filter * filter, int cmd, void * data);
116 int (*reset )(struct roardsp_filter * filter, int what);
117};
118
119#ifdef ROAR_HAVE_LIBM
120struct roardsp_lowp {
121 uint32_t freq; // in mHz (0Hz..4MHz)
122 uint16_t a, b;
123 int32_t  old[ROAR_MAX_CHANNELS];
124};
125
126struct roardsp_highp {
127 uint32_t freq; // in mHz (0Hz..4MHz)
128 int32_t  a, b, c;
129 int32_t  oldout[ROAR_MAX_CHANNELS];
130 int32_t  oldin[ROAR_MAX_CHANNELS];
131};
132#endif
133
134struct roardsp_amp {
135 int32_t  mul;
136 int32_t  div;
137};
138
139struct roardsp_dcblock {
140 int cur;
141 int32_t dc[ROARDSP_DCBLOCK_NUMBLOCKS];
142};
143
144struct roardsp_swap {
145 int map[ROAR_MAX_CHANNELS];
146};
147
148struct roardsp_agc {
149 struct roardsp_filter * amp;
150 uint32_t target_amp;
151};
152
153struct roardsp_speex_prep {
154#ifdef _SPEEX_TYPES_H
155 SpeexPreprocessState *preprocess;
156 int frame_size;
157#else
158 char dummy[8];
159#endif
160};
161
162
163// funcs:
164int    roardsp_filter_str2id(char * str);
165char * roardsp_filter_id2str(int id);
166int    roardsp_filter_new   (struct roardsp_filter ** filter, struct roar_stream * stream, int id);
167#define roardsp_filter_free(x) roardsp_filter_uninit((x))
168int    roardsp_filter_init  (struct roardsp_filter *  filter, struct roar_stream * stream, int id);
169int    roardsp_filter_uninit(struct roardsp_filter *  filter);
170int    roardsp_filter_calc  (struct roardsp_filter *  filter, void * data, size_t len);
171int    roardsp_filter_ctl   (struct roardsp_filter *  filter, int cmd, void * data);
172int    roardsp_filter_reset (struct roardsp_filter *  filter, int what);
173
174
175// filter:
176
177#ifdef ROAR_HAVE_LIBM
178int roardsp_lowp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
179int roardsp_lowp_uninit(struct roardsp_filter * filter);
180int roardsp_lowp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
181int roardsp_lowp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
182int roardsp_lowp_reset (struct roardsp_filter * filter, int what);
183
184int roardsp_highp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
185int roardsp_highp_uninit(struct roardsp_filter * filter);
186int roardsp_highp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
187int roardsp_highp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
188int roardsp_highp_reset (struct roardsp_filter * filter, int what);
189#endif
190
191int roardsp_amp_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
192int roardsp_amp_uninit(struct roardsp_filter * filter);
193int roardsp_amp_calc16(struct roardsp_filter * filter, void * data, size_t samples);
194int roardsp_amp_calc8 (struct roardsp_filter * filter, void * data, size_t samples);
195int roardsp_amp_ctl   (struct roardsp_filter * filter, int cmd, void * data);
196int roardsp_amp_reset (struct roardsp_filter * filter, int what);
197
198int roardsp_add_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
199int roardsp_add_calc16(struct roardsp_filter * filter, void * data, size_t samples);
200int roardsp_add_reset (struct roardsp_filter * filter, int what);
201
202int roardsp_quantify_init  (struct roardsp_filter * filter, struct roar_stream * stream, int id);
203int roardsp_quantify_uninit(struct roardsp_filter * filter);
204int roardsp_quantify_calc16(struct roardsp_filter * filter, void * data, size_t samples);
205int roardsp_quantify_ctl   (struct roardsp_filter * filter, int cmd, void * data);
206int roardsp_quantify_reset (struct roardsp_filter * filter, int what);
207
208int roardsp_clip_calc16(struct roardsp_filter * filter, void * data, size_t samples);
209int roardsp_clip_ctl   (struct roardsp_filter * filter, int cmd, void * data);
210int roardsp_clip_reset (struct roardsp_filter * filter, int what);
211
212int roardsp_downmix_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
213int roardsp_downmix_calc162(struct roardsp_filter * filter, void * data, size_t samples);
214int roardsp_downmix_ctl    (struct roardsp_filter * filter, int cmd, void * data);
215int roardsp_downmix_reset  (struct roardsp_filter * filter, int what);
216
217int roardsp_dcblock_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
218int roardsp_dcblock_uninit (struct roardsp_filter * filter);
219int roardsp_dcblock_calc16 (struct roardsp_filter * filter, void * data, size_t samples);
220int roardsp_dcblock_reset  (struct roardsp_filter * filter, int what);
221
222int roardsp_swap_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
223int roardsp_swap_uninit (struct roardsp_filter * filter);
224int roardsp_swap_calc162(struct roardsp_filter * filter, void * data, size_t samples);
225int roardsp_swap_ctl    (struct roardsp_filter * filter, int cmd, void * data);
226int roardsp_swap_reset  (struct roardsp_filter * filter, int what);
227
228int roardsp_agc_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
229int roardsp_agc_uninit (struct roardsp_filter * filter);
230int roardsp_agc_ctl    (struct roardsp_filter * filter, int cmd, void * data);
231int roardsp_agc_reset  (struct roardsp_filter * filter, int what);
232
233#ifdef _SPEEX_TYPES_H
234#define ROAR_HAVE_SPEEX_FILTER
235int roardsp_speex_prep_init   (struct roardsp_filter * filter, struct roar_stream * stream, int id);
236int roardsp_speex_prep_uninit (struct roardsp_filter * filter);
237int roardsp_speex_prep_calc161(struct roardsp_filter * filter, void * data, size_t samples);
238int roardsp_speex_prep_ctl    (struct roardsp_filter * filter, int cmd, void * data);
239int roardsp_speex_prep_reset  (struct roardsp_filter * filter, int what);
240#endif
241
242#endif
243
244//ll
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