[3318] | 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 |
---|
[3517] | 21 | * the Free Software Foundation, 51 Franklin Street, Fifth Floor, |
---|
| 22 | * Boston, MA 02110-1301, USA. |
---|
[3318] | 23 | * |
---|
| 24 | * NOTE for everyone want's to change something and send patches: |
---|
| 25 | * read README and HACKING! There a addition information on |
---|
| 26 | * the license of this document you need to read before you send |
---|
| 27 | * any patches. |
---|
| 28 | * |
---|
| 29 | * NOTE for uses of non-GPL (LGPL,...) software using libesd, libartsc |
---|
| 30 | * or libpulse*: |
---|
| 31 | * The libs libroaresd, libroararts and libroarpulse link this lib |
---|
| 32 | * and are therefore GPL. Because of this it may be illigal to use |
---|
| 33 | * them with any software that uses libesd, libartsc or libpulse*. |
---|
| 34 | */ |
---|
| 35 | |
---|
| 36 | #ifndef _LIBROARDSP_FILTER_H_ |
---|
| 37 | #define _LIBROARDSP_FILTER_H_ |
---|
| 38 | |
---|
| 39 | #include "libroardsp.h" |
---|
| 40 | |
---|
[3319] | 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 | #define ROARDSP_FILTER_SPEEX_PREP 11 |
---|
| 53 | #define ROARDSP_FILTER_AGC 12 |
---|
| 54 | |
---|
| 55 | // filter CTLs: |
---|
| 56 | |
---|
[3321] | 57 | #define ROARDSP_FCTL_FREQ 1 /* float */ |
---|
[3319] | 58 | #define ROARDSP_FCTL_TIME 2 |
---|
| 59 | #define ROARDSP_FCTL_MUL 3 /* int32_t */ |
---|
| 60 | #define ROARDSP_FCTL_DIV 4 /* int32_t */ |
---|
| 61 | #define ROARDSP_FCTL_N 5 /* int32_t */ |
---|
| 62 | #define ROARDSP_FCTL_LIMIT 6 /* int32_t */ |
---|
| 63 | #define ROARDSP_FCTL_PHASE 7 |
---|
| 64 | #define ROARDSP_FCTL_Q 8 /* int32_t */ |
---|
| 65 | #define ROARDSP_FCTL_MODE 9 /* int32_t */ |
---|
[3321] | 66 | #define ROARDSP_FCTL_PACKET_SIZE 10 /* size_t */ |
---|
[3319] | 67 | |
---|
| 68 | // consts for filter flags: |
---|
| 69 | #define ROARDSP_FFLAG_NONE 0x0000 |
---|
| 70 | #define ROARDSP_FFLAG_FREE 0x0001 |
---|
| 71 | |
---|
| 72 | // consts for filter(chain) reset: |
---|
| 73 | #define ROARDSP_RESET_NONE 0 |
---|
| 74 | #define ROARDSP_RESET_FULL 1 |
---|
| 75 | #define ROARDSP_RESET_STATE 2 |
---|
| 76 | |
---|
| 77 | // filter specific constants: |
---|
| 78 | #define ROARDSP_DOWNMIX_LEFT 1 |
---|
| 79 | #define ROARDSP_DOWNMIX_RIGHT 2 |
---|
| 80 | #define ROARDSP_DOWNMIX_ARITHMETIC 3 |
---|
| 81 | #define ROARDSP_DOWNMIX_RMS 4 |
---|
| 82 | |
---|
| 83 | #define ROARDSP_DCBLOCK_NUMBLOCKS 100 |
---|
| 84 | |
---|
| 85 | |
---|
| 86 | #define ROARDSP_SPEEX_PREP_ON 0x0001 |
---|
| 87 | #define ROARDSP_SPEEX_PREP_OFF 0x0002 |
---|
| 88 | #define ROARDSP_SPEEX_PREP_MASK (ROARDSP_SPEEX_PREP_ON|ROARDSP_SPEEX_PREP_OFF) |
---|
| 89 | |
---|
| 90 | // Config Bit Vector |
---|
| 91 | #define ROARDSP_SPEEX_PREP_CBV(opt,sw) ((sw)<<((opt)*2)) |
---|
| 92 | #define ROARDSP_SPEEX_PREP_CTB(opt,val) (((val) & ROARDSP_SPEEX_PREP_CBV((opt),ROARDSP_SPEEX_PREP_MASK)) >> ((opt)*2)) |
---|
| 93 | |
---|
| 94 | #define ROARDSP_SPEEX_PREP_DENOISE 0 |
---|
| 95 | #define ROARDSP_SPEEX_PREP_AGC 1 |
---|
| 96 | #define ROARDSP_SPEEX_PREP_VAD 2 |
---|
| 97 | |
---|
| 98 | #define ROARDSP_SPEEX_PREP_DENOISE_ON ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_DENOISE, ROARDSP_SPEEX_PREP_ON) |
---|
| 99 | #define ROARDSP_SPEEX_PREP_DENOISE_OFF ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_DENOISE, ROARDSP_SPEEX_PREP_OFF) |
---|
| 100 | #define ROARDSP_SPEEX_PREP_AGC_ON ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_AGC, ROARDSP_SPEEX_PREP_ON) |
---|
| 101 | #define ROARDSP_SPEEX_PREP_AGC_OFF ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_AGC, ROARDSP_SPEEX_PREP_OFF) |
---|
| 102 | #define ROARDSP_SPEEX_PREP_VAD_ON ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_VAD, ROARDSP_SPEEX_PREP_ON) |
---|
| 103 | #define ROARDSP_SPEEX_PREP_VAD_OFF ROARDSP_SPEEX_PREP_CBV(ROARDSP_SPEEX_PREP_VAD, ROARDSP_SPEEX_PREP_OFF) |
---|
| 104 | |
---|
| 105 | |
---|
| 106 | // types: |
---|
| 107 | |
---|
| 108 | struct roardsp_filter { |
---|
| 109 | int channels; |
---|
| 110 | int bits; |
---|
| 111 | int rate; |
---|
| 112 | void * inst; |
---|
| 113 | uint_least16_t flags; |
---|
| 114 | int (*calc )(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 115 | int (*uninit)(struct roardsp_filter * filter); |
---|
| 116 | int (*ctl )(struct roardsp_filter * filter, int cmd, void * data); |
---|
| 117 | int (*reset )(struct roardsp_filter * filter, int what); |
---|
| 118 | }; |
---|
| 119 | |
---|
| 120 | #ifdef ROAR_HAVE_LIBM |
---|
| 121 | struct roardsp_lowp { |
---|
| 122 | uint32_t freq; // in mHz (0Hz..4MHz) |
---|
| 123 | uint16_t a, b; |
---|
| 124 | int32_t old[ROAR_MAX_CHANNELS]; |
---|
| 125 | }; |
---|
| 126 | |
---|
| 127 | struct roardsp_highp { |
---|
| 128 | uint32_t freq; // in mHz (0Hz..4MHz) |
---|
| 129 | int32_t a, b, c; |
---|
| 130 | int32_t oldout[ROAR_MAX_CHANNELS]; |
---|
| 131 | int32_t oldin[ROAR_MAX_CHANNELS]; |
---|
| 132 | }; |
---|
| 133 | #endif |
---|
| 134 | |
---|
| 135 | struct roardsp_amp { |
---|
| 136 | int32_t mul; |
---|
| 137 | int32_t div; |
---|
| 138 | }; |
---|
| 139 | |
---|
| 140 | struct roardsp_dcblock { |
---|
| 141 | int cur; |
---|
| 142 | int32_t dc[ROARDSP_DCBLOCK_NUMBLOCKS]; |
---|
| 143 | }; |
---|
| 144 | |
---|
| 145 | struct roardsp_swap { |
---|
| 146 | int map[ROAR_MAX_CHANNELS]; |
---|
| 147 | }; |
---|
| 148 | |
---|
| 149 | struct roardsp_agc { |
---|
| 150 | struct roardsp_filter * amp; |
---|
| 151 | uint32_t target_amp; |
---|
| 152 | }; |
---|
| 153 | |
---|
| 154 | struct roardsp_speex_prep { |
---|
| 155 | #ifdef _SPEEX_TYPES_H |
---|
| 156 | SpeexPreprocessState *preprocess; |
---|
| 157 | int frame_size; |
---|
| 158 | #else |
---|
| 159 | char dummy[8]; |
---|
| 160 | #endif |
---|
| 161 | }; |
---|
| 162 | |
---|
| 163 | |
---|
| 164 | // funcs: |
---|
| 165 | int roardsp_filter_str2id(char * str); |
---|
| 166 | char * roardsp_filter_id2str(int id); |
---|
| 167 | int roardsp_filter_new (struct roardsp_filter ** filter, struct roar_stream * stream, int id); |
---|
| 168 | #define roardsp_filter_free(x) roardsp_filter_uninit((x)) |
---|
| 169 | int roardsp_filter_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 170 | int roardsp_filter_uninit(struct roardsp_filter * filter); |
---|
| 171 | int roardsp_filter_calc (struct roardsp_filter * filter, void * data, size_t len); |
---|
| 172 | int roardsp_filter_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 173 | int roardsp_filter_reset (struct roardsp_filter * filter, int what); |
---|
| 174 | |
---|
| 175 | |
---|
| 176 | // filter: |
---|
| 177 | |
---|
| 178 | #ifdef ROAR_HAVE_LIBM |
---|
| 179 | int roardsp_lowp_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 180 | int roardsp_lowp_uninit(struct roardsp_filter * filter); |
---|
| 181 | int roardsp_lowp_calc16(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 182 | int roardsp_lowp_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 183 | int roardsp_lowp_reset (struct roardsp_filter * filter, int what); |
---|
| 184 | |
---|
| 185 | int roardsp_highp_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 186 | int roardsp_highp_uninit(struct roardsp_filter * filter); |
---|
| 187 | int roardsp_highp_calc16(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 188 | int roardsp_highp_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 189 | int roardsp_highp_reset (struct roardsp_filter * filter, int what); |
---|
| 190 | #endif |
---|
| 191 | |
---|
| 192 | int roardsp_amp_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 193 | int roardsp_amp_uninit(struct roardsp_filter * filter); |
---|
| 194 | int roardsp_amp_calc16(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 195 | int roardsp_amp_calc8 (struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 196 | int roardsp_amp_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 197 | int roardsp_amp_reset (struct roardsp_filter * filter, int what); |
---|
| 198 | |
---|
| 199 | int roardsp_add_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 200 | int roardsp_add_calc16(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 201 | int roardsp_add_reset (struct roardsp_filter * filter, int what); |
---|
| 202 | |
---|
| 203 | int roardsp_quantify_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 204 | int roardsp_quantify_uninit(struct roardsp_filter * filter); |
---|
| 205 | int roardsp_quantify_calc16(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 206 | int roardsp_quantify_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 207 | int roardsp_quantify_reset (struct roardsp_filter * filter, int what); |
---|
| 208 | |
---|
| 209 | int roardsp_clip_calc16(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 210 | int roardsp_clip_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 211 | int roardsp_clip_reset (struct roardsp_filter * filter, int what); |
---|
| 212 | |
---|
| 213 | int roardsp_downmix_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 214 | int roardsp_downmix_calc162(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 215 | int roardsp_downmix_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 216 | int roardsp_downmix_reset (struct roardsp_filter * filter, int what); |
---|
| 217 | |
---|
| 218 | int roardsp_dcblock_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 219 | int roardsp_dcblock_uninit (struct roardsp_filter * filter); |
---|
| 220 | int roardsp_dcblock_calc16 (struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 221 | int roardsp_dcblock_reset (struct roardsp_filter * filter, int what); |
---|
| 222 | |
---|
| 223 | int roardsp_swap_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 224 | int roardsp_swap_uninit (struct roardsp_filter * filter); |
---|
| 225 | int roardsp_swap_calc162(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 226 | int roardsp_swap_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 227 | int roardsp_swap_reset (struct roardsp_filter * filter, int what); |
---|
| 228 | |
---|
| 229 | int roardsp_agc_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 230 | int roardsp_agc_uninit (struct roardsp_filter * filter); |
---|
| 231 | int roardsp_agc_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 232 | int roardsp_agc_reset (struct roardsp_filter * filter, int what); |
---|
| 233 | |
---|
| 234 | #ifdef _SPEEX_TYPES_H |
---|
| 235 | #define ROAR_HAVE_SPEEX_FILTER |
---|
| 236 | int roardsp_speex_prep_init (struct roardsp_filter * filter, struct roar_stream * stream, int id); |
---|
| 237 | int roardsp_speex_prep_uninit (struct roardsp_filter * filter); |
---|
| 238 | int roardsp_speex_prep_calc161(struct roardsp_filter * filter, void * data, size_t samples); |
---|
| 239 | int roardsp_speex_prep_ctl (struct roardsp_filter * filter, int cmd, void * data); |
---|
| 240 | int roardsp_speex_prep_reset (struct roardsp_filter * filter, int what); |
---|
| 241 | #endif |
---|
[3318] | 242 | |
---|
| 243 | #endif |
---|
| 244 | |
---|
| 245 | //ll |
---|