def addFeature(self, definition):
"""
Add a feature defined according the :ref:`feature definition syntax <featplan>`.
:param definition: feature definition
:type definition: string
:rtype: True on success, False on fail.
"""
data = definition.split(':')
if not len(data) == 2:
print 'Syntax error in "%s"' % definition
return False
name, featdef = data
dataflow = DataFlow()
inputNode = dataflow.createInput('audio', self.audio_params)
if featdef.strip():
for s in featdef.split('>'):
s = s.strip()
bb = s.split(' ')
feat = AudioFeatureFactory.get_feature(bb[0])
if not feat:
return False
params = {}
for d in bb[1:]:
if len(d) == 0:
continue
if not '=' in d:
print 'Invalid feature parameter "%s"' % d
return False
dd = d.split('=')
if not len(dd) == 2:
print 'Syntax error in feature parameter "%s"' % d
return False
params[dd[0]] = dd[1]
dataflow.append(feat.get_dataflow(params, self.sample_rate))
fNode = dataflow.finalNodes()[0]
feat_attrs = self.out_attrs.copy()
feat_attrs['yaafedefinition'] = featdef.strip()
outNode = dataflow.createOutput(name, feat_attrs)
dataflow.link(fNode, '', outNode, '')
self.dataflow.merge(dataflow)
return True
def addFeature(self, definition):
"""
Add a feature defined according the :ref:`feature definition syntax <featplan>`.
:param definition: feature definition
:type definition: string
:rtype: True on success, False on fail.
"""
data = definition.split(":")
if not len(data) == 2:
print 'Syntax error in "%s"' % definition
return False
name, featdef = data
dataflow = DataFlow()
inputNode = dataflow.createInput("audio", self.audio_params)
if featdef.strip():
for s in featdef.split(">"):
s = s.strip()
bb = s.split(" ")
feat = AudioFeatureFactory.get_feature(bb[0])
if not feat:
return False
params = {}
for d in bb[1:]:
if len(d) == 0:
continue
if not "=" in d:
print 'Invalid feature parameter "%s"' % d
return False
dd = d.split("=")
if not len(dd) == 2:
print 'Syntax error in feature parameter "%s"' % d
return False
params[dd[0]] = dd[1]
dataflow.append(feat.get_dataflow(params, self.sample_rate))
fNode = dataflow.finalNodes()[0]
feat_attrs = self.out_attrs.copy()
feat_attrs["yaafedefinition"] = featdef.strip()
outNode = dataflow.createOutput(name, feat_attrs)
dataflow.link(fNode, "", outNode, "")
self.dataflow.merge(dataflow)
return True
