├── .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:
--------------------------------------------------------------------------------
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577 | GNU General Public License, you may choose any version ever published
578 | by the Free Software Foundation.
579 |
580 | If the Program specifies that a proxy can decide which future
581 | versions of the GNU General Public License can be used, that proxy's
582 | public statement of acceptance of a version permanently authorizes you
583 | to choose that version for the Program.
584 |
585 | Later license versions may give you additional or different
586 | permissions. However, no additional obligations are imposed on any
587 | author or copyright holder as a result of your choosing to follow a
588 | later version.
589 |
590 | 15. Disclaimer of Warranty.
591 |
592 | THERE IS NO WARRANTY FOR THE PROGRAM, TO THE EXTENT PERMITTED BY
593 | APPLICABLE LAW. EXCEPT WHEN OTHERWISE STATED IN WRITING THE COPYRIGHT
594 | HOLDERS AND/OR OTHER PARTIES PROVIDE THE PROGRAM "AS IS" WITHOUT WARRANTY
595 | OF ANY KIND, EITHER EXPRESSED OR IMPLIED, INCLUDING, BUT NOT LIMITED TO,
596 | THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
597 | PURPOSE. THE ENTIRE RISK AS TO THE QUALITY AND PERFORMANCE OF THE PROGRAM
598 | IS WITH YOU. SHOULD THE PROGRAM PROVE DEFECTIVE, YOU ASSUME THE COST OF
599 | ALL NECESSARY SERVICING, REPAIR OR CORRECTION.
600 |
601 | 16. Limitation of Liability.
602 |
603 | IN NO EVENT UNLESS REQUIRED BY APPLICABLE LAW OR AGREED TO IN WRITING
604 | WILL ANY COPYRIGHT HOLDER, OR ANY OTHER PARTY WHO MODIFIES AND/OR CONVEYS
605 | THE PROGRAM AS PERMITTED ABOVE, BE LIABLE TO YOU FOR DAMAGES, INCLUDING ANY
606 | GENERAL, SPECIAL, INCIDENTAL OR CONSEQUENTIAL DAMAGES ARISING OUT OF THE
607 | USE OR INABILITY TO USE THE PROGRAM (INCLUDING BUT NOT LIMITED TO LOSS OF
608 | DATA OR DATA BEING RENDERED INACCURATE OR LOSSES SUSTAINED BY YOU OR THIRD
609 | PARTIES OR A FAILURE OF THE PROGRAM TO OPERATE WITH ANY OTHER PROGRAMS),
610 | EVEN IF SUCH HOLDER OR OTHER PARTY HAS BEEN ADVISED OF THE POSSIBILITY OF
611 | SUCH DAMAGES.
612 |
613 | 17. 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 |
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/tests/linear_display.py:
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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 |
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/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 |
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