├── .gitignore ├── .gitmodules ├── LICENSE ├── README.md ├── bs2b.ttl ├── bs2b_presets.ttl ├── manifest.ttl.in ├── plugin.c ├── waf └── wscript /.gitignore: -------------------------------------------------------------------------------- 1 | /build/ 2 | /.lock-waf_linux_build 3 | /.waf* 4 | -------------------------------------------------------------------------------- /.gitmodules: -------------------------------------------------------------------------------- 1 | [submodule "waflib"] 2 | path = waflib 3 | url = https://github.com/drobilla/autowaf.git 4 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | GNU GENERAL PUBLIC LICENSE 2 | Version 2, June 1991 3 | 4 | Copyright (C) 1989, 1991 Free Software Foundation, Inc., 5 | 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA 6 | Everyone is permitted to copy and distribute verbatim copies 7 | of this license document, but changing it is not allowed. 8 | 9 | Preamble 10 | 11 | The licenses for most software are designed to take away your 12 | freedom to share and change it. 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If this is what you want to do, use the GNU Lesser General 339 | Public License instead of this License. 340 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # bs2b-lv2 2 | [bs2b](http://bs2b.sourceforge.net/) effect plugin for [LV2](http://lv2plug.in/) 3 | 4 | This plugin is ported from LADSPA bs2b plugin, and lv2 related codes are from lv2 examples. 5 | 6 | 7 | ## Installaton 8 | ### Dependant packages 9 | - [lv2](http://lv2plug.in) 10 | - [libbs2b](http://bs2b.sourceforge.net) 11 | ``` 12 | ./waf configure 13 | ./waf build 14 | ./waf install 15 | ``` 16 | 17 | ### For gentoo users 18 | ebuild files are [here.](https://github.com/nilninull/portage/tree/master/media-plugins/bs2b-lv2) 19 | 20 | 21 | -------------------------------------------------------------------------------- /bs2b.ttl: -------------------------------------------------------------------------------- 1 | @prefix doap: . 2 | @prefix lv2: . 3 | @prefix rdf: . 4 | @prefix rdfs: . 5 | @prefix units: . 6 | @prefix pset: . 7 | 8 | 9 | 10 | a lv2:Plugin , 11 | lv2:SimulatorPlugin ; 12 | doap:name "Bauer stereophonic-to-binaural" ; 13 | doap:license ; 14 | 15 | # LB_PORT_LOWPASS, 16 | # LB_PORT_FEEDING, 17 | # LB_PORT_INPUT_LEFT, 18 | # LB_PORT_INPUT_RIGHT, 19 | # LB_PORT_OUTPUT_LEFT, 20 | # LB_PORT_OUTPUT_RIGHT, 21 | 22 | lv2:port [ 23 | a lv2:InputPort , 24 | lv2:ControlPort ; 25 | 26 | lv2:index 0 ; 27 | 28 | lv2:symbol "fcut" ; 29 | lv2:name "Lowpass filter cut frequency (Hz)" ; 30 | lv2:default 700.0 ; 31 | lv2:minimum 300.0 ; 32 | lv2:maximum 2000.0 ; 33 | units:unit units:hz ; 34 | ] , [ 35 | a lv2:InputPort , 36 | lv2:ControlPort ; 37 | 38 | lv2:index 1 ; 39 | 40 | lv2:symbol "feed" ; 41 | lv2:name "Feeding level (dB)" ; 42 | lv2:default 4.5 ; 43 | lv2:minimum 1.0 ; 44 | lv2:maximum 15.0 ; 45 | units:unit units:db ; 46 | ] , [ 47 | a lv2:InputPort , 48 | lv2:AudioPort ; 49 | 50 | lv2:index 2 ; 51 | 52 | lv2:symbol "in0" ; 53 | lv2:name "Input left" 54 | ] , [ 55 | a lv2:InputPort , 56 | lv2:AudioPort ; 57 | 58 | lv2:index 3 ; 59 | 60 | lv2:symbol "in1" ; 61 | lv2:name "Input right" 62 | ] , [ 63 | 64 | a lv2:OutputPort , 65 | lv2:AudioPort ; 66 | 67 | lv2:index 4 ; 68 | 69 | lv2:symbol "out0" ; 70 | lv2:name "Output left" 71 | ] , [ 72 | a lv2:OutputPort , 73 | lv2:AudioPort ; 74 | 75 | lv2:index 5 ; 76 | 77 | lv2:symbol "out1" ; 78 | lv2:name "Output right" 79 | ] . 80 | -------------------------------------------------------------------------------- /bs2b_presets.ttl: -------------------------------------------------------------------------------- 1 | @prefix atom: . 2 | @prefix lv2: . 3 | @prefix pset: . 4 | @prefix rdf: . 5 | @prefix rdfs: . 6 | @prefix state: . 7 | @prefix xsd: . 8 | 9 | 10 | a pset:Preset ; 11 | lv2:appliesTo ; 12 | rdfs:label "Default" ; 13 | lv2:port [ 14 | lv2:symbol "fcut" ; 15 | pset:value 700.0 16 | ], [ 17 | lv2:symbol "feed" ; 18 | pset:value 4.5 19 | ] . 20 | 21 | 22 | a pset:Preset ; 23 | lv2:appliesTo ; 24 | rdfs:label "Chu Moy" ; 25 | lv2:port [ 26 | lv2:symbol "fcut" ; 27 | pset:value 700.0 28 | ], [ 29 | lv2:symbol "feed" ; 30 | pset:value 6.0 31 | ] . 32 | 33 | 34 | a pset:Preset ; 35 | lv2:appliesTo ; 36 | rdfs:label "Jan Meier" ; 37 | lv2:port [ 38 | lv2:symbol "fcut" ; 39 | pset:value 650.0 40 | ], [ 41 | lv2:symbol "feed" ; 42 | pset:value 9.5 43 | ] . 44 | -------------------------------------------------------------------------------- /manifest.ttl.in: -------------------------------------------------------------------------------- 1 | @prefix lv2: . 2 | @prefix rdfs: . 3 | 4 | 5 | a lv2:Plugin ; 6 | lv2:binary ; 7 | rdfs:seeAlso ; 8 | rdfs:seeAlso . 9 | -------------------------------------------------------------------------------- /plugin.c: -------------------------------------------------------------------------------- 1 | /* 2 | * LV2 bs2b effect plugin 3 | * 4 | * 5 | * Copyright (C) 2016, 2021 nilninull 6 | * 7 | * Author: nilninull 8 | * 9 | * 10 | * This program was ported from LADSPA bs2b effect plugin. 11 | * 12 | * Original author is Sebastian Pipping (C) 2009 13 | * 14 | * 15 | * This program is free software: you can redistribute it and/or modify 16 | * it under the terms of the GNU General Public License as published by 17 | * the Free Software Foundation, either version 3 of the License, or 18 | * (at your option) any later version. 19 | * 20 | * This program is distributed in the hope that it will be useful, 21 | * but WITHOUT ANY WARRANTY; without even the implied warranty of 22 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 23 | * GNU General Public License for more details. 24 | * 25 | * You should have received a copy of the GNU General Public License 26 | * along with this program. If not, see . 27 | */ 28 | 29 | /* Which is a better place for lv2 uri? */ 30 | #define BS2B_URI "http://bs2b.sourceforge.net/plugins/bs2b" 31 | /* #define BS2B_URI "https://github.com/nilninull/bs2b-lv2/plugins/bs2b" */ 32 | 33 | #include 34 | #include 35 | 36 | #include 37 | 38 | #define LB_BETWEEN(min, x, max) (((x) < (min))\ 39 | ? (min)\ 40 | : (\ 41 | ((x) > (max))\ 42 | ? (max)\ 43 | : (x)\ 44 | )\ 45 | ) 46 | 47 | /*****************************************************************************/ 48 | 49 | /* The port numbers for the plugin: */ 50 | typedef enum { 51 | LB_PORT_LOWPASS, 52 | LB_PORT_FEEDING, 53 | LB_PORT_INPUT_LEFT, 54 | LB_PORT_INPUT_RIGHT, 55 | LB_PORT_OUTPUT_LEFT, 56 | LB_PORT_OUTPUT_RIGHT, 57 | } PortIndex; 58 | 59 | /*****************************************************************************/ 60 | 61 | /* Instance data for the bs2b plugin. */ 62 | typedef struct { 63 | t_bs2bdp bs2b; 64 | uint32_t levelBackup; 65 | 66 | float * alternatingBuffer; 67 | size_t bufferSampleCount; 68 | 69 | /* Ports from here on */ 70 | float * m_pfLowpass; 71 | float * m_pfFeeding; 72 | 73 | /* Input audio port data location. */ 74 | float * m_pfInputLeft; 75 | float * m_pfInputRight; 76 | 77 | /* Output audio port data location. */ 78 | float * m_pfOutputLeft; 79 | float * m_pfOutputRight; 80 | } Bs2bLine; 81 | 82 | /*****************************************************************************/ 83 | 84 | /* Construct a new plugin instance. */ 85 | static LV2_Handle 86 | instantiate(const LV2_Descriptor* descriptor, 87 | double rate, 88 | const char* bundle_path, 89 | const LV2_Feature* const* features) { 90 | /* Sample rate supported? */ 91 | if ((rate < BS2B_MINSRATE) || (rate > BS2B_MAXSRATE)) { 92 | return NULL; 93 | } 94 | 95 | Bs2bLine * psBs2bLine = (Bs2bLine *)malloc(sizeof(Bs2bLine)); 96 | if (psBs2bLine == NULL) { 97 | return NULL; 98 | } 99 | 100 | /* Init effect backend */ 101 | psBs2bLine->bs2b = bs2b_open(); 102 | if(psBs2bLine->bs2b == NULL) { 103 | free(psBs2bLine); 104 | return NULL; 105 | } 106 | bs2b_set_srate(psBs2bLine->bs2b, rate); 107 | psBs2bLine->levelBackup = BS2B_DEFAULT_CLEVEL; 108 | 109 | psBs2bLine->alternatingBuffer = NULL; 110 | psBs2bLine->bufferSampleCount = 0; 111 | 112 | return (LV2_Handle)psBs2bLine; 113 | } 114 | 115 | /*****************************************************************************/ 116 | 117 | /* Initialise and activate a plugin instance. */ 118 | static void 119 | activate(LV2_Handle instance) { 120 | /* 121 | Bs2bLine * psBs2bLine = (Bs2bLine *)Instance; 122 | NOOP 123 | */ 124 | } 125 | 126 | /*****************************************************************************/ 127 | 128 | /* Connect a port to a data location. */ 129 | static void 130 | connect_port(LV2_Handle instance, 131 | uint32_t port, 132 | void* data) { 133 | Bs2bLine * psBs2bLine = (Bs2bLine *)instance; 134 | switch ((PortIndex)port) { 135 | case LB_PORT_LOWPASS: 136 | psBs2bLine->m_pfLowpass = (float *) data; 137 | break; 138 | case LB_PORT_FEEDING: 139 | psBs2bLine->m_pfFeeding = (float *) data; 140 | break; 141 | case LB_PORT_INPUT_LEFT: 142 | psBs2bLine->m_pfInputLeft = (float *) data; 143 | break; 144 | case LB_PORT_INPUT_RIGHT: 145 | psBs2bLine->m_pfInputRight = (float *) data; 146 | break; 147 | case LB_PORT_OUTPUT_LEFT: 148 | psBs2bLine->m_pfOutputLeft = (float *) data; 149 | break; 150 | case LB_PORT_OUTPUT_RIGHT: 151 | psBs2bLine->m_pfOutputRight = (float *) data; 152 | break; 153 | } 154 | } 155 | 156 | /*****************************************************************************/ 157 | 158 | /* Run a bs2b instance for a block of SampleCount samples. */ 159 | static void 160 | run(LV2_Handle instance, uint32_t n_samples) { 161 | float * pfInputLeft; 162 | float * pfInputRight; 163 | float * pfOutputLeft; 164 | float * pfOutputRight; 165 | Bs2bLine * psBs2bLine = (Bs2bLine *)instance; 166 | unsigned long lSampleIndex; 167 | 168 | uint16_t const lowpass = (uint16_t)psBs2bLine->m_pfLowpass[0]; 169 | uint16_t const feeding = (uint16_t)(psBs2bLine->m_pfFeeding[0] * 10); 170 | uint32_t const currentLevel 171 | = LB_BETWEEN(BS2B_MINFCUT, lowpass, BS2B_MAXFCUT) 172 | | LB_BETWEEN(BS2B_MINFEED, feeding, BS2B_MAXFEED) << 16; 173 | 174 | pfInputLeft = psBs2bLine->m_pfInputLeft; 175 | pfInputRight = psBs2bLine->m_pfInputRight; 176 | pfOutputLeft = psBs2bLine->m_pfOutputLeft; 177 | pfOutputRight = psBs2bLine->m_pfOutputRight; 178 | 179 | /* bs2b_cross_feed_f increase cpu usage while all 0 inputs. 180 | First time (before using the plugin) does not increase cpus. 181 | But once used, the cpu usage was up. 182 | Below codes simply skip for avoiding this situations. 183 | I couldn't find other way for fix this. */ 184 | 185 | for (lSampleIndex = 0; lSampleIndex < n_samples; lSampleIndex++) { 186 | if (pfInputLeft[lSampleIndex] != 0 || pfInputRight[lSampleIndex] != 0) 187 | break; 188 | } 189 | 190 | if (lSampleIndex == n_samples) { 191 | for (lSampleIndex = 0; lSampleIndex < n_samples; lSampleIndex++) { 192 | pfOutputLeft[lSampleIndex] = 0; 193 | pfOutputRight[lSampleIndex] = 0; 194 | } 195 | return; 196 | } 197 | 198 | /* Re-allocate when needed */ 199 | if (n_samples > psBs2bLine->bufferSampleCount) { 200 | float * const reallocated 201 | = (float *) realloc(psBs2bLine->alternatingBuffer, 202 | sizeof(float) * n_samples * 2); 203 | if (reallocated) { 204 | psBs2bLine->alternatingBuffer = reallocated; 205 | psBs2bLine->bufferSampleCount = n_samples; 206 | } else { 207 | /* No suitable buffer to do processing with */ 208 | free(psBs2bLine->alternatingBuffer); 209 | psBs2bLine->alternatingBuffer = NULL; 210 | psBs2bLine->bufferSampleCount = 0; 211 | return; 212 | } 213 | } 214 | 215 | /* Write to channel-alternating buffer */ 216 | for (lSampleIndex = 0; lSampleIndex < n_samples; lSampleIndex++) { 217 | psBs2bLine->alternatingBuffer[2 * lSampleIndex + 0] 218 | = pfInputLeft[lSampleIndex]; 219 | psBs2bLine->alternatingBuffer[2 * lSampleIndex + 1] 220 | = pfInputRight[lSampleIndex]; 221 | } 222 | 223 | /* Sync settings */ 224 | if (currentLevel != psBs2bLine->levelBackup) { 225 | bs2b_set_level(psBs2bLine->bs2b, currentLevel); 226 | psBs2bLine->levelBackup = currentLevel; 227 | } 228 | 229 | /* Apply effect */ 230 | bs2b_cross_feed_f(psBs2bLine->bs2b, psBs2bLine->alternatingBuffer, 231 | n_samples); 232 | 233 | /* Read back from channel-alternating buffer */ 234 | for (lSampleIndex = 0; lSampleIndex < n_samples; lSampleIndex++) { 235 | pfOutputLeft[lSampleIndex] 236 | = psBs2bLine->alternatingBuffer[2 * lSampleIndex + 0]; 237 | pfOutputRight[lSampleIndex] 238 | = psBs2bLine->alternatingBuffer[2 * lSampleIndex + 1]; 239 | } 240 | } 241 | 242 | /*****************************************************************************/ 243 | 244 | static void 245 | deactivate(LV2_Handle instance) 246 | { 247 | } 248 | 249 | /*****************************************************************************/ 250 | 251 | /* Throw away a bs2b line. */ 252 | static void 253 | cleanup(LV2_Handle instance) { 254 | Bs2bLine * psBs2bLine = (Bs2bLine *)instance; 255 | if (psBs2bLine->bs2b != NULL) { 256 | bs2b_close(psBs2bLine->bs2b); 257 | psBs2bLine->bs2b = NULL; 258 | } 259 | 260 | free(psBs2bLine->alternatingBuffer); 261 | psBs2bLine->alternatingBuffer = NULL; 262 | 263 | free(psBs2bLine); 264 | } 265 | 266 | 267 | /*****************************************************************************/ 268 | 269 | static const void* 270 | extension_data(const char* uri) 271 | { 272 | return NULL; 273 | } 274 | 275 | /*****************************************************************************/ 276 | 277 | static const LV2_Descriptor descriptor = { 278 | BS2B_URI, 279 | instantiate, 280 | connect_port, 281 | activate, 282 | run, 283 | deactivate, 284 | cleanup, 285 | extension_data 286 | }; 287 | 288 | /*****************************************************************************/ 289 | 290 | /* Return a descriptor of the requested plugin type. Only one plugin 291 | type is available in this library. */ 292 | 293 | LV2_SYMBOL_EXPORT 294 | const LV2_Descriptor* 295 | lv2_descriptor(uint32_t index) { 296 | if (index == 0) 297 | return &descriptor; 298 | else 299 | return NULL; 300 | } 301 | 302 | /*****************************************************************************/ 303 | 304 | /* EOF */ 305 | -------------------------------------------------------------------------------- /waf: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | # Minimal waf script for projects that include waflib directly 4 | 5 | import sys 6 | import inspect 7 | import os 8 | 9 | try: 10 | from waflib import Context, Scripting 11 | except Exception as e: 12 | sys.stderr.write('error: Failed to import waf (%s)\n' % e) 13 | if os.path.exists('.git'): 14 | sys.stderr.write("Are submodules up to date? " 15 | "Try 'git submodule update --init --recursive'\n") 16 | 17 | sys.exit(1) 18 | 19 | 20 | def main(): 21 | script_path = os.path.abspath(inspect.getfile(inspect.getmodule(main))) 22 | project_path = os.path.dirname(os.path.realpath(script_path)) 23 | Scripting.waf_entry_point(os.getcwd(), Context.WAFVERSION, project_path) 24 | 25 | 26 | if __name__ == '__main__': 27 | main() 28 | -------------------------------------------------------------------------------- /wscript: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | from waflib.extras import autowaf 4 | 5 | APPNAME = 'bs2b.lv2' 6 | VERSION = '1.1.1' 7 | top = '.' 8 | out = 'build' 9 | 10 | # Release variables 11 | title = 'BS2B.lv2' 12 | uri = 'https://github.com/nilninull/bs2b-lv2' 13 | # dist_pattern = '' 14 | post_tags = ['LV2', 'BS2B.lv2'] 15 | 16 | def options(opt): 17 | opt.load('compiler_c') 18 | opt.load('lv2') 19 | 20 | def configure(conf): 21 | conf.load('compiler_c', cache=True) 22 | conf.load('lv2', cache=True) 23 | conf.load('autowaf', cache=True) 24 | autowaf.set_c_lang(conf, 'c99') 25 | 26 | conf.check_pkg('lv2 >= 1.16.0', uselib_store='LV2') 27 | conf.run_env.append_unique('LV2_PATH', [conf.build_path('lv2')]) 28 | autowaf.display_summary(conf, {'LV2 bundle directory': conf.env.LV2DIR}) 29 | 30 | autowaf.check_pkg(conf, 'libbs2b', uselib_store='BS2B', 31 | atleast_version='3.1.0', mandatory=True) 32 | 33 | def build(bld): 34 | bundle = 'bs2b.lv2' 35 | 36 | # Build manifest.ttl by substitution (for portable lib extension) 37 | bld(features = 'subst', 38 | source = 'manifest.ttl.in', 39 | target = '%s/%s' % (bundle, 'manifest.ttl'), 40 | install_path = '${LV2DIR}/%s' % bundle, 41 | LIB_EXT = bld.env.LV2_LIB_EXT) 42 | 43 | # Copy other data files to build bundle 44 | for i in ['bs2b.ttl', 'bs2b_presets.ttl']: 45 | bld(features = 'subst', 46 | is_copy = True, 47 | source = i, 48 | target = '%s/%s' % (bundle, i), 49 | install_path = '${LV2DIR}/%s' % bundle) 50 | 51 | # Build plugin library 52 | obj = bld(features = 'c cshlib lv2lib', 53 | source = 'plugin.c', 54 | name = 'bs2b', 55 | target = '%s/bs2b' % bundle, 56 | install_path = '${LV2DIR}/%s' % bundle, 57 | uselib = 'LV2 BS2B') 58 | --------------------------------------------------------------------------------