def getComponentParameters(name):
ptr = yaafecore.getComponentParameters(to_char(name))
res = [(to_str(p.contents.identifier),
to_str(p.contents.defaultValue),
to_str(p.contents.description)) for p in iterPtrList(ptr)]
yaafecore.freeComponentParameters(ptr)
return res
def getOutputs(self):
"""
Get output metadata. For each output feature, you get the following
metadata:
:sampleRate: audio analysis samplerate
:sampleStep: Number of audio samples between consecutive feature
values
:frameLength: Analysis frame size in number of audio samples
:size: size the feature (or number of coefficients)
:parameters: attached parameters.
"""
res = {}
oList = yc.engine_getOutputList(self.ptr)
for outputname in iterPtrList(oList):
ptr = yc.engine_getOutputInfos(self.ptr, to_char(outputname))
infos = {}
if ptr:
infos['sampleRate'] = ptr.contents.sampleRate
infos['sampleStep'] = ptr.contents.sampleStep
infos['frameLength'] = ptr.contents.frameLength
infos['size'] = ptr.contents.size
infos['parameters'] = dict(
(to_str(k), to_str(v))
for k, v in iterPtrDict(ptr.contents.parameters))
yc.engine_freeIOInfos(ptr)
res[to_str(outputname)] = infos
yc.engine_freeIOList(oList)
return res
def getInputs(self):
"""
Get input metadata. Result format is the same as for
:py:meth:`getOutputs` method, but the general case is
that there is only one input named 'audio' and the sole
relevant metadata are:
:sampleRate: expected audio sampleRate
:parameters: attached parameters
Others fields should be set to 1.
"""
res = {}
iList = yc.engine_getInputList(self.ptr)
for inputname in iterPtrList(iList):
ptr = yc.engine_getInputInfos(self.ptr, to_char(inputname))
infos = {}
if ptr:
infos['sampleRate'] = ptr.contents.sampleRate
infos['sampleStep'] = ptr.contents.sampleStep
infos['frameLength'] = ptr.contents.frameLength
infos['size'] = ptr.contents.size
infos['parameters'] = dict(
(to_str(k), to_str(v))
for k, v in iterPtrDict(ptr.contents.parameters))
yc.engine_freeIOInfos(ptr)
res[to_str(inputname)] = infos
yc.engine_freeIOList(iList)
return res
def __str__(self):
"""
Return the Dataflow in string, which can be reload
via :ref:`DataFlow.loads <Dataflow.loads>`
:return: Dataflow in string
"""
ptr = yc.dataflow_stringify(self.ptr)
buf = cast(ptr, c_char_p).value
yc.free_dataflow_stringify(ptr)
return to_str(buf)
def __str__(self):
"""
Return the Dataflow in string, which can be reload
via :ref:`DataFlow.loads <Dataflow.loads>`
:return: Dataflow in string
"""
ptr = yc.dataflow_stringify(self.ptr)
buf = cast(ptr, c_char_p).value
yc.free_dataflow_stringify(ptr)
return to_str(buf)
def readAllOutputs(self):
"""
Read all outputs.
:return: dictionary with output name as key and numpy.array
as value.
"""
res = {}
oList = yc.engine_getOutputList(self.ptr)
for o in iterPtrList(oList):
res[to_str(o)] = self.readOutput(o)
return res