├── .gitignore ├── LICENSE ├── pyvst ├── __init__.py ├── aeffect.py └── vstplugin.py ├── setup.py └── tests ├── display.py ├── linear_display.py └── test_plugin.py /.gitignore: -------------------------------------------------------------------------------- 1 | *.pyc 2 | *.py~ 3 | /pyvst.egg-info 4 | /build 5 | /dist 6 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | 2 | GNU GENERAL PUBLIC LICENSE 3 | Version 3, 29 June 2007 4 | 5 | Copyright (C) 2007 Free Software Foundation, Inc. 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 GNU General Public License is a free, copyleft license for 12 | software and other kinds of works. 13 | 14 | The licenses for most software and other practical works are designed 15 | to take away your freedom to share and change the works. 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Interpretation of Sections 15 and 16. 614 | 615 | If the disclaimer of warranty and limitation of liability provided 616 | above cannot be given local legal effect according to their terms, 617 | reviewing courts shall apply local law that most closely approximates 618 | an absolute waiver of all civil liability in connection with the 619 | Program, unless a warranty or assumption of liability accompanies a 620 | copy of the Program in return for a fee. 621 | 622 | END OF TERMS AND CONDITIONS 623 | 624 | How to Apply These Terms to Your New Programs 625 | 626 | If you develop a new program, and you want it to be of the greatest 627 | possible use to the public, the best way to achieve this is to make it 628 | free software which everyone can redistribute and change under these terms. 629 | 630 | To do so, attach the following notices to the program. It is safest 631 | to attach them to the start of each source file to most effectively 632 | state the exclusion of warranty; and each file should have at least 633 | the "copyright" line and a pointer to where the full notice is found. 634 | 635 | {one line to give the program's name and a brief idea of what it does.} 636 | Copyright (C) {year} {name of author} 637 | 638 | This program is free software: you can redistribute it and/or modify 639 | it under the terms of the GNU General Public License as published by 640 | the Free Software Foundation, either version 3 of the License, or 641 | (at your option) any later version. 642 | 643 | This program is distributed in the hope that it will be useful, 644 | but WITHOUT ANY WARRANTY; without even the implied warranty of 645 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 646 | GNU General Public License for more details. 647 | 648 | You should have received a copy of the GNU General Public License 649 | along with this program. If not, see . 650 | 651 | Also add information on how to contact you by electronic and paper mail. 652 | 653 | If the program does terminal interaction, make it output a short 654 | notice like this when it starts in an interactive mode: 655 | 656 | {project} Copyright (C) {year} {fullname} 657 | This program comes with ABSOLUTELY NO WARRANTY; for details type `show w'. 658 | This is free software, and you are welcome to redistribute it 659 | under certain conditions; type `show c' for details. 660 | 661 | The hypothetical commands `show w' and `show c' should show the appropriate 662 | parts of the General Public License. Of course, your program's commands 663 | might be different; for a GUI interface, you would use an "about box". 664 | 665 | You should also get your employer (if you work as a programmer) or school, 666 | if any, to sign a "copyright disclaimer" for the program, if necessary. 667 | For more information on this, and how to apply and follow the GNU GPL, see 668 | . 669 | 670 | The GNU General Public License does not permit incorporating your program 671 | into proprietary programs. If your program is a subroutine library, you 672 | may consider it more useful to permit linking proprietary applications with 673 | the library. If this is what you want to do, use the GNU Lesser General 674 | Public License instead of this License. But first, please read 675 | . 676 | -------------------------------------------------------------------------------- /pyvst/__init__.py: -------------------------------------------------------------------------------- 1 | 2 | from vstplugin import VSTPlugin, dump_effect_properties 3 | -------------------------------------------------------------------------------- /pyvst/aeffect.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | class VstStringConstants(object): 4 | kVstMaxProgNameLen = 24 5 | kVstMaxParamStrLen = 8 6 | kVstMaxVendorStrLen = 64 7 | kVstMaxProductStrLen = 64 8 | kVstMaxEffectNameLen = 32 9 | 10 | from ctypes import * 11 | 12 | class AEffect(Structure): 13 | _fields_ = [ 14 | ('magic', c_int), 15 | ('dispatcher', c_void_p), 16 | ('process', c_void_p), 17 | ('setParameter', c_void_p), 18 | ('getParameter', c_void_p), 19 | ('numPrograms', c_int), 20 | ('numParams', c_int), 21 | ('numInputs', c_int), 22 | ('numOutputs', c_int), 23 | ('flags', c_int), 24 | ('resvd1', c_void_p), 25 | ('resvd2', c_void_p), 26 | ('initialDelay', c_int), 27 | ('realQualities', c_int), 28 | ('offQualities', c_int), 29 | ('ioRatio', c_float), 30 | ('object', c_void_p), 31 | ('user', c_void_p), 32 | ('uniqueID', c_int), 33 | ('version', c_int), 34 | ('processReplacing', c_void_p), 35 | ('processDoubleReplacing', c_void_p), 36 | ] 37 | 38 | class ERect(Structure): 39 | _fields_ = [ 40 | ('top', c_short), 41 | ('left', c_short), 42 | ('bottom', c_short), 43 | ('right', c_short), 44 | ] 45 | 46 | audiomaster_callback = CFUNCTYPE(c_void_p, POINTER(AEffect), c_int, c_int, c_long, c_void_p, c_float) 47 | 48 | def create_dispatcher_proc(pointer): 49 | prototype = CFUNCTYPE(c_void_p, POINTER(AEffect), c_int, c_int, c_long, c_void_p, c_float) 50 | return prototype(pointer) 51 | 52 | def create_process_proc(pointer): 53 | prototype = CFUNCTYPE(None, POINTER(AEffect), POINTER(POINTER(c_float)), POINTER(POINTER(c_float)), c_int) 54 | return prototype(pointer) 55 | 56 | def create_process_double_proc(pointer): 57 | prototype = CFUNCTYPE(None, POINTER(AEffect), POINTER(POINTER(c_double)), POINTER(POINTER(c_double)), c_int) 58 | return prototype(pointer) 59 | 60 | def create_set_param_proc(pointer): 61 | prototype = CFUNCTYPE(None, POINTER(AEffect), c_int, c_float) 62 | return prototype(pointer) 63 | 64 | def create_get_param_proc(pointer): 65 | prototype = CFUNCTYPE(c_float, POINTER(AEffect), c_int) 66 | return prototype(pointer) 67 | -------------------------------------------------------------------------------- /pyvst/vstplugin.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | import numpy 4 | from ctypes import CDLL, POINTER 5 | 6 | from aeffect import * 7 | 8 | kVstVersion = 2400 9 | 10 | class VstAEffectFlags(object): 11 | effFlagsHasEditor = 1 << 0 12 | effFlagsCanReplacing = 1 << 4 13 | effFlagsProgramChunks = 1 << 5 14 | effFlagsIsSynth = 1 << 8 15 | effFlagsNoSoundInStop = 1 << 9 16 | effFlagsCanDoubleReplacing = 1 << 12 17 | 18 | class AEffectOpcodes(object): 19 | effOpen = 0 20 | effClose = 1 21 | 22 | effSetProgram = 2 23 | effGetProgram = 3 24 | effSetProgramName = 4 25 | effGetProgramName = 5 26 | 27 | effGetParamLabel = 6 28 | effGetParamDisplay = 7 29 | effGetParamName = 8 30 | 31 | effSetSampleRate = 10 32 | effSetBlockSize = 11 33 | effMainsChanged = 12 34 | 35 | effEditGetRect = 13 36 | effEditOpen = 14 37 | effEditClose = 15 38 | 39 | effEditIdle = 19 40 | 41 | effGetChunk = 23 42 | effSetChunk = 24 43 | 44 | effNumOpcodes = 25 45 | 46 | class AEffectXOpcodes(object): 47 | effProcessEvents = 25 48 | effCanBeAutomated = 26 49 | effString2Parameter = 27 50 | 51 | effGetProgramNameIndexed = 29 52 | 53 | effGetInputProperties = 33 54 | effGetOutputProperties = 34 55 | effGetPlugCategory = 35 56 | 57 | effOfflineNotify = 38 58 | effOfflinePrepare = 39 59 | effOfflineRun = 40 60 | effProcessVarIo = 41 61 | effSetSpeakerArrangement = 42 62 | 63 | effSetBypass = 44 64 | effGetEffectName = 45 65 | 66 | effGetVendorString = 47 67 | effGetProductString = 48 68 | effGetVendorVersion = 49 69 | effVendorSpecific = 50 70 | effCanDo = 51 71 | effGetTailSize = 52 72 | 73 | effGetParameterProperties = 56 74 | effGetVstVersion = 58 75 | 76 | effEditKeyDown = 59 77 | effEditKeyUp = 60 78 | effSetEditKnobMode = 61 79 | 80 | effGetMidiProgramName = 62 81 | effGetCurrentMidiProgram = 63 82 | effGetMidiProgramCategory = 64 83 | effHasMidiProgramsChanged = 65 84 | effGetMidiKeyName = 66 85 | 86 | effBeginSetProgram = 67 87 | effEndSetProgram = 68 88 | 89 | effGetSpeakerArrangement = 69 90 | effShellGetNextPlugin = 70 91 | 92 | effStartProcess = 71 93 | effStopProcess = 72 94 | effSetTotalSampleToProcess = 73 95 | effSetPanLaw = 74 96 | 97 | effBeginLoadBank = 75 98 | effBeginLoadProgram = 76 99 | 100 | effSetProcessPrecision = 77 101 | effGetNumMidiInputChannels = 78 102 | effGetNumMidiOutputChannels = 79 103 | 104 | class AudioMasterOpcodes(object): 105 | audioMasterAutomate = 0 106 | audioMasterVersion = 1 107 | audioMasterCurrentId = 2 108 | audioMasterIdle = 3 109 | 110 | def basic_callback(effect, opcode, index, value, ptr, opt): 111 | """ 112 | Basic callback 113 | """ 114 | if opcode == AudioMasterOpcodes.audioMasterVersion: 115 | return kVstVersion 116 | return 0 117 | 118 | class VSTPlugin(object): 119 | """ 120 | An actual VST plugin wrapper 121 | """ 122 | def __init__(self, filename, audio_callback = basic_callback): 123 | """ 124 | Constructor 125 | Parameters: 126 | filename is the name of the plugin to load 127 | audio_callback is the Python function to call (optional) 128 | """ 129 | self.__lib = CDLL(filename) 130 | self.__callback = audiomaster_callback(audio_callback) 131 | 132 | try: 133 | self.__lib.VSTPluginMain.argtypes = [audiomaster_callback, ] 134 | self.__lib.VSTPluginMain.restype = POINTER(AEffect) 135 | self.__effect = self.__lib.VSTPluginMain(self.__callback).contents 136 | except AttributeError: 137 | self.__lib.main.argtypes = [audiomaster_callback, ] 138 | self.__lib.main.restype = POINTER(AEffect) 139 | self.__effect = self.__lib.main(self.__callback).contents 140 | 141 | self.__populate_methods() 142 | 143 | def __populate_methods(self): 144 | self.dispatcher = create_dispatcher_proc(self.__effect.dispatcher) 145 | self.__process_replacing = create_process_proc(self.__effect.processReplacing) 146 | if(self.__effect.processDoubleReplacing): 147 | self.__process_double_replacing = create_process_double_proc(self.__effect.processDoubleReplacing) 148 | self.__set_param = create_set_param_proc(self.__effect.setParameter) 149 | self.__get_param = create_get_param_proc(self.__effect.getParameter) 150 | 151 | def open(self): 152 | return self.dispatcher(byref(self.__effect), AEffectOpcodes.effOpen, 0, 0, None, 0) 153 | 154 | def close(self): 155 | return self.dispatcher(byref(self.__effect), AEffectOpcodes.effClose, 0, 0, None, 0) 156 | 157 | def open_edit(self, window = None): 158 | return self.dispatcher(byref(self.__effect), AEffectOpcodes.effEditOpen, 0, 0, window, 0) 159 | 160 | def close_edit(self): 161 | return self.dispatcher(byref(self.__effect), AEffectOpcodes.effEditClose, 0, 0, None, 0) 162 | 163 | def get_erect(self): 164 | rect = POINTER(ERect)() 165 | self.dispatcher(byref(self.__effect), AEffectOpcodes.effEditGetRect, 0, 0, byref(rect), 0) 166 | return rect.contents 167 | 168 | def set_sample_rate(self, sample_rate): 169 | return self.dispatcher(byref(self.__effect), AEffectOpcodes.effSetSampleRate, 0, 0, None, sample_rate) 170 | 171 | def set_block_size(self, block_size): 172 | return self.dispatcher(byref(self.__effect), AEffectOpcodes.effSetBlockSize, 0, block_size, None, 0) 173 | 174 | def process_replacing(self, inputs, outputs): 175 | f4ptr = POINTER(c_float) 176 | float_input_pointers = (f4ptr*len(inputs))(*[row.ctypes.data_as(f4ptr) for row in inputs]) 177 | float_output_pointers = (f4ptr*len(outputs))(*[row.ctypes.data_as(f4ptr) for row in outputs]) 178 | self.__process_replacing(byref(self.__effect), float_input_pointers, float_output_pointers, len(inputs[0])) 179 | 180 | def process_double_replacing(self, inputs, outputs): 181 | d4ptr = POINTER(c_double) 182 | double_input_pointers = (d4ptr*len(inputs))(*[row.ctypes.data_as(d4ptr) for row in inputs]) 183 | double_output_pointers = (d4ptr*len(outputs))(*[row.ctypes.data_as(d4ptr) for row in outputs]) 184 | self.__process_double_replacing(byref(self.__effect), double_input_pointers, double_output_pointers, len(inputs[0])) 185 | 186 | def process(self, inputs, outputs): 187 | if inputs[0].dtype == numpy.float32: 188 | self.process_replacing(inputs, outputs) 189 | else: 190 | self.process_double_replacing(inputs, outputs) 191 | 192 | def set_parameter(self, index, value): 193 | return self.__set_param(byref(self.__effect), index, value) 194 | 195 | def get_parameter(self, index): 196 | return self.__get_param(byref(self.__effect), index) 197 | 198 | def get_name(self): 199 | name = c_char_p('\0' * VstStringConstants.kVstMaxEffectNameLen) 200 | self.dispatcher(byref(self.__effect), AEffectXOpcodes.effGetEffectName, 0, 0, name, 0.) 201 | return name.value 202 | 203 | def get_vendor(self): 204 | name = c_char_p('\0' * VstStringConstants.kVstMaxVendorStrLen) 205 | self.dispatcher(byref(self.__effect), AEffectXOpcodes.effGetVendorString, 0, 0, name, 0.) 206 | return name.value 207 | 208 | def get_product(self): 209 | name = c_char_p('\0' * VstStringConstants.kVstMaxProductStrLen) 210 | self.dispatcher(byref(self.__effect), AEffectXOpcodes.effGetProductString, 0, 0, name, 0.) 211 | return name.value 212 | 213 | def get_number_of_programs(self): 214 | return self.__effect.numPrograms 215 | 216 | number_of_programs = property(get_number_of_programs) 217 | 218 | def get_number_of_parameters(self): 219 | return self.__effect.numParams 220 | 221 | number_of_parameters = property(get_number_of_parameters) 222 | 223 | def get_number_of_inputs(self): 224 | return self.__effect.numInputs 225 | 226 | number_of_inputs = property(get_number_of_inputs) 227 | 228 | def get_number_of_outputs(self): 229 | return self.__effect.numOutputs 230 | 231 | number_of_outputs = property(get_number_of_outputs) 232 | 233 | def get_program_name_indexed(self, index): 234 | name = c_char_p('\0' * VstStringConstants.kVstMaxProgNameLen) 235 | if self.dispatcher(byref(self.__effect), AEffectXOpcodes.effGetProgramNameIndexed, index, 0, name, 0.): 236 | raise IndexError("No program with this index (%d)" % index) 237 | return name.value 238 | 239 | def set_program(self, index): 240 | self.dispatcher(byref(self.__effect), AEffectOpcodes.effSetProgram, index, 0, None, 0.) 241 | 242 | def get_program_name(self): 243 | name = c_char_p('\0' * VstStringConstants.kVstMaxProgNameLen) 244 | self.dispatcher(byref(self.__effect), AEffectOpcodes.effGetProgramName, 0, 0, name, 0.) 245 | return name.value 246 | 247 | def get_parameter_name(self, index): 248 | name = c_char_p('\0' * VstStringConstants.kVstMaxParamStrLen) 249 | self.dispatcher(byref(self.__effect), AEffectOpcodes.effGetParamName, index, 0, name, 0.) 250 | return name.value 251 | 252 | def get_parameter_label(self, index): 253 | name = c_char_p('\0' * VstStringConstants.kVstMaxParamStrLen) 254 | self.dispatcher(byref(self.__effect), AEffectOpcodes.effGetParamLabel, index, 0, name, 0.) 255 | return name.value 256 | 257 | def get_parameter_display(self, index): 258 | name = c_char_p('\0' * VstStringConstants.kVstMaxParamStrLen) 259 | self.dispatcher(byref(self.__effect), AEffectOpcodes.effGetParamDisplay, index, 0, name, 0.) 260 | return name.value 261 | 262 | def suspend(self): 263 | self.dispatcher(byref(self.__effect), AEffectOpcodes.effMainsChanged, 0, 0, None, 0.) 264 | 265 | def resume(self): 266 | self.dispatcher(byref(self.__effect), AEffectOpcodes.effMainsChanged, 0, 1, None, 0.) 267 | 268 | def can_process_double(self): 269 | return (self.__effect.flags & VstAEffectFlags.effFlagsCanDoubleReplacing) == VstAEffectFlags.effFlagsCanDoubleReplacing 270 | 271 | def has_editor(self): 272 | return (self.__effect.flags & VstAEffectFlags.effFlagsHasEditor) == VstAEffectFlags.effFlagsHasEditor 273 | 274 | def get_effect_properties(effect): 275 | """ 276 | Return a dictionary of the effect properties 277 | """ 278 | properties_dict = {} 279 | properties_dict["Plugin name"] = effect.get_name() 280 | properties_dict["Vendor name"] = effect.get_vendor() 281 | properties_dict["Product name"] = effect.get_product() 282 | 283 | properties_dict["numPrograms"] = effect.number_of_programs 284 | properties_dict["numParams"] = effect.number_of_parameters 285 | properties_dict["numInputs"] = effect.number_of_inputs 286 | properties_dict["numOutputs"] = effect.number_of_outputs 287 | 288 | programs_list = [] 289 | for program_index in range(effect.number_of_programs): 290 | try: 291 | program_name = effect.get_program_name_indexed(program_index) 292 | effect.set_program(program_index) 293 | program_name = effect.get_program_name() 294 | programs_list.append(program_name) 295 | except: 296 | pass 297 | properties_dict["Program names"] = programs_list 298 | 299 | params_list = [] 300 | for param_index in range(effect.number_of_parameters): 301 | param_name = effect.get_parameter_name(param_index) 302 | param_display = effect.get_parameter_display(param_index) 303 | param_label = effect.get_parameter_label(param_index) 304 | value = effect.get_parameter(param_index) 305 | params_list.append({'param_name': param_name, 'param_display': param_display, 'param_label': param_label, 'curr_value': value}) 306 | properties_dict["Parameters"] = params_list 307 | return properties_dict 308 | 309 | def dump_effect_properties(effect): 310 | """ 311 | Dump on the screen every thing about the effect properties 312 | """ 313 | properties_dict = get_effect_properties(effect) 314 | for k in ["Plugin name", "Vendor name", "Product name", 315 | "numPrograms", "numParams", "numInputs", "numOutputs"]: 316 | print '%s: %s' %(k, properties_dict[k]) 317 | 318 | for each_idx, each_program in enumerate(properties_dict["Program names"]): 319 | print 'Program %03d: %s' %(each_idx, each_program) 320 | 321 | for param_index, each_param in enumerate(properties_dict["Parameters"]): 322 | param_name = effect.get_parameter_name(param_index) 323 | param_display = effect.get_parameter_display(param_index) 324 | param_label = effect.get_parameter_label(param_index) 325 | value = effect.get_parameter(param_index) 326 | print "Param %03d: %s [%s %s] (normalized = %f)" % (param_index, each_param['param_name'], each_param['param_display'], each_param['param_label'], each_param['curr_value']) 327 | -------------------------------------------------------------------------------- /setup.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | from setuptools import setup 4 | 5 | setup(name='pyvst', 6 | version='0.1.0', 7 | description='Python ctypes-based VST wrapper', 8 | author='Matthieu Brucher', 9 | author_email='matthieu.brucher@gmail.com', 10 | packages=['pyvst', ], 11 | classifiers = 12 | [ 'Development Status :: 4 - Beta', 13 | 'Environment :: Win32 (MS Windows)', 14 | 'Environment :: Plugins', 15 | 'Intended Audience :: Developers', 16 | 'Intended Audience :: Science/Research', 17 | 'License :: OSI Approved :: GNU General Public License (GPL)', 18 | 'Operating System :: Microsoft :: Windows', 19 | 'Topic :: Multimedia :: Sound/Audio', 20 | 'Topic :: Scientific/Engineering', 21 | ] 22 | ) 23 | 24 | -------------------------------------------------------------------------------- /tests/display.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | import time 4 | 5 | import matplotlib.pyplot as pyplot 6 | import numpy 7 | 8 | from pyvst import * 9 | 10 | SampleRate = 96000 11 | Samples = 2000000 12 | FreqMax = 20000 13 | 14 | def raise_gui(plugin): 15 | import wx 16 | 17 | app = wx.App() 18 | frame = wx.Frame(None, -1, "Plugin editor") 19 | 20 | plugin.open_edit(frame.GetHandle()) 21 | rect = plugin.get_erect() 22 | frame.SetClientSize((rect.right, rect.bottom)) 23 | frame.Show() 24 | app.MainLoop() 25 | plugin.close_edit() 26 | 27 | def display(plugin, type): 28 | t = numpy.arange(Samples, dtype=type) / SampleRate 29 | 30 | input1 = numpy.sin(numpy.pi * (SampleRate * FreqMax / Samples * (t + .1)) * t) 31 | input2 = input1[::-1].flatten() 32 | output = numpy.zeros((plugin.number_of_outputs, Samples), dtype=type) 33 | 34 | start = time.time() 35 | for i in range(Samples/2048): 36 | plugin.process([input1[i*2048:(i+1)*2048], input2[i*2048:(i+1)*2048]], output[:, i*2048:(i+1)*2048]) 37 | print "Elapsed time:", (time.time() - start) 38 | 39 | return (input1, input2), output 40 | 41 | def plot(inputs, outputs, NFFT = 8192, noverlap = 1024): 42 | pyplot.figure() 43 | a = pyplot.subplot(2, len(outputs), 1) 44 | pyplot.title("Input L") 45 | pyplot.specgram(inputs[0], NFFT = NFFT, Fs = SampleRate, noverlap = noverlap ) 46 | #pyplot.plot(inputs[0]) 47 | if len(outputs) > 1: 48 | a = pyplot.subplot(2, 2, 2) 49 | pyplot.title("Input R") 50 | pyplot.specgram(inputs[1], NFFT = NFFT, Fs = SampleRate, noverlap = noverlap ) 51 | #pyplot.plot(inputs[1]) 52 | 53 | a = pyplot.subplot(2, len(outputs), len(outputs) + 1) 54 | pyplot.title("Output L") 55 | pyplot.specgram(outputs[0], NFFT = NFFT, Fs = SampleRate, noverlap = noverlap ) 56 | #pyplot.plot(outputs[0]) 57 | if len(outputs) > 1: 58 | a = pyplot.subplot(2, 2, 4) 59 | pyplot.title("Output R") 60 | pyplot.specgram(outputs[1], NFFT = NFFT, Fs = SampleRate, noverlap = noverlap ) 61 | #pyplot.plot(outputs[1]) 62 | 63 | import sys 64 | 65 | if len(sys.argv) > 1: 66 | plugin = VSTPlugin(sys.argv[1]) 67 | else: 68 | plugin = VSTPlugin("again.dll") 69 | 70 | plugin.open() 71 | plugin.set_sample_rate(SampleRate) 72 | plugin.set_block_size(2048) 73 | 74 | if plugin.has_editor(): 75 | raise_gui(plugin) 76 | 77 | dump_effect_properties(plugin) 78 | 79 | plugin.resume() 80 | 81 | if plugin.can_process_double(): 82 | print "Testing with doubles (64bits)" 83 | inputs, outputs = display(plugin, numpy.float64) 84 | else: 85 | print "Testing with floats (32bits)" 86 | inputs, outputs = display(plugin, numpy.float32) 87 | plot(inputs, outputs) 88 | pyplot.show() 89 | 90 | plugin.suspend() 91 | -------------------------------------------------------------------------------- /tests/linear_display.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | import matplotlib.pyplot as pyplot 4 | import numpy 5 | 6 | from pyvst import * 7 | 8 | SampleRate = 96000 9 | Samples = 2**21 10 | 11 | def raise_gui(plugin): 12 | import wx 13 | 14 | app = wx.App() 15 | frame = wx.Frame(None, -1, "Plugin editor") 16 | 17 | plugin.open_edit(frame.GetHandle()) 18 | rect = plugin.get_erect() 19 | frame.SetClientSize((rect.right, rect.bottom)) 20 | frame.Show() 21 | app.MainLoop() 22 | 23 | def display(plugin, type): 24 | input1 = numpy.random.randn(Samples).astype(numpy.float32) 25 | input2 = input1[::-1].flatten() 26 | output = numpy.zeros((plugin.number_of_outputs, Samples), dtype=type) 27 | 28 | for i in range(Samples/2048): 29 | plugin.process([input1[i*2048:(i+1)*2048], input2[i*2048:(i+1)*2048]] * (plugin.number_of_inputs / 2), output[:, i*2048:(i+1)*2048]) 30 | 31 | return (input1, input2), output 32 | 33 | def plot(inputs, outputs): 34 | x= SampleRate * numpy.arange(Samples/2.) / Samples 35 | pyplot.figure() 36 | a = pyplot.subplot(2, 2, 1) 37 | a.grid(True) 38 | pyplot.title("Input L") 39 | pyplot.loglog(x, numpy.abs(numpy.fft.fft(inputs[0])[:Samples/2])) 40 | #pyplot.plot(inputs[0]) 41 | a = pyplot.subplot(2, 2, 2) 42 | a.grid(True) 43 | pyplot.title("Input R") 44 | pyplot.loglog(x, numpy.abs(numpy.fft.fft(inputs[1])[:Samples/2])) 45 | #pyplot.plot(inputs[1]) 46 | 47 | a = pyplot.subplot(2, 2, 3) 48 | a.grid(True) 49 | pyplot.title("Output L") 50 | pyplot.loglog(x, numpy.abs(numpy.fft.fft(outputs[0])[:Samples/2])) 51 | #pyplot.plot(outputs[0]) 52 | a = pyplot.subplot(2, 2, 4) 53 | a.grid(True) 54 | pyplot.title("Output R") 55 | pyplot.loglog(x, numpy.abs(numpy.fft.fft(outputs[1])[:Samples/2])) 56 | #pyplot.plot(outputs[1]) 57 | 58 | import sys 59 | 60 | if len(sys.argv) > 1: 61 | plugin = VSTPlugin(sys.argv[1]) 62 | else: 63 | plugin = VSTPlugin("again.dll") 64 | 65 | plugin.open() 66 | plugin.set_sample_rate(SampleRate) 67 | plugin.set_block_size(2048) 68 | 69 | if plugin.has_editor(): 70 | raise_gui(plugin) 71 | 72 | dump_effect_properties(plugin) 73 | 74 | plugin.resume() 75 | 76 | if plugin.can_process_double(): 77 | print "Testing with doubles (64bits)" 78 | inputs, outputs = display(plugin, numpy.float64) 79 | else: 80 | print "Testing with floats (32bits)" 81 | inputs, outputs = display(plugin, numpy.float32) 82 | plot(inputs, outputs) 83 | pyplot.show() 84 | 85 | plugin.suspend() 86 | -------------------------------------------------------------------------------- /tests/test_plugin.py: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env python 2 | 3 | from pyvst import * 4 | 5 | def test_load(): 6 | plugin = VSTPlugin("again.dll") 7 | 8 | def test_check_magic(): 9 | plugin = VSTPlugin("again.dll") 10 | assert plugin._VSTPlugin__effect.magic == (ord("V") << 24) + (ord("s") << 16) + (ord("t") << 8) + ord("P") 11 | 12 | def test_basic_info(): 13 | plugin = VSTPlugin("again.dll") 14 | assert plugin.get_name() == "Gain" 15 | assert plugin.get_vendor() == "Steinberg Media Technologies" 16 | assert plugin.get_product() == "Gain" 17 | 18 | def test_open_close(): 19 | plugin = VSTPlugin("again.dll") 20 | plugin.open() 21 | plugin.close() 22 | 23 | def test_resume_suspend(): 24 | plugin = VSTPlugin("again.dll") 25 | plugin.resume() 26 | plugin.suspend() 27 | 28 | def test_properties(): 29 | plugin = VSTPlugin("again.dll") 30 | plugin.open() 31 | 32 | assert plugin.number_of_programs == 1 33 | assert plugin.number_of_parameters == 1 34 | assert plugin.number_of_inputs == 2 35 | assert plugin.number_of_outputs == 2 36 | 37 | def test_parameters(): 38 | plugin = VSTPlugin("again.dll") 39 | plugin.set_parameter(1, 0.) 40 | assert plugin.get_parameter(1) == 0. 41 | plugin.set_parameter(1, 1.) 42 | assert plugin.get_parameter(1) == 1. 43 | --------------------------------------------------------------------------------