Chris@0: 
Chris@0: import sys
Chris@1: import os
Chris@1: 
Chris@1: sys.path.append(os.getcwd())
Chris@1: 
Chris@4: import scikits.audiolab as al;
Chris@4: 
Chris@0: #from melscale import melscale
Chris@0: #from melscale import initialize
Chris@0: from pylab import *
Chris@0: # from melscale import *
Chris@0: from numpy import *
Chris@0: from pylab import *
Chris@0: from time import *
Chris@0: 
Chris@0: from vampyhost import *
Chris@1: import vampyhost
Chris@0: import vampyhost as vh
Chris@0: #import pyRealTime
Chris@0: #from pyRealTime import *
Chris@0: 
Chris@0: #deal with an audio file
Chris@1: wavfile='test.wav'
Chris@0: 
Chris@5: wavdata, samplerate, format = al.wavread(wavfile);
Chris@4: 
Chris@0: print "samplerate: ",samplerate
Chris@5: print "number of samples (frames): ",wavdata.size
Chris@5: 
Chris@5: audio = wavdata.transpose()
Chris@5: 
Chris@5: channels = audio.size
Chris@1: print "channels: ",channels
Chris@0: 
Chris@0: rt=realtime(4,70)
Chris@0: 
Chris@0: #test RealTime Object
Chris@0: for i in [0,1,2] :
Chris@0: 	if (i==0) : rtl=[]
Chris@0: 	rtl.append(realtime())
Chris@0: 	print ">>>>>RealTime's method: ", rtl[i].values()
Chris@0: 
Chris@0: 
Chris@0: class feature_example():
Chris@0: 	def __init__(self):
Chris@0: 		self.hasTimestamp
Chris@0: 		self.timestamp
Chris@0: 		self.values
Chris@0: 		self.label
Chris@1: 
Chris@0: pluginlist = vh.enumeratePlugins()
Chris@0: for i,n in enumerate(pluginlist) : print i,":",n
Chris@1: pluginKey=pluginlist[0]; # try the first plugin listed
Chris@0: 
Chris@0: retval = vh.getLibraryPath(pluginKey)
Chris@0: print pluginKey
Chris@0: print retval
Chris@0: 
Chris@0: print vh.getPluginCategory(pluginKey)
Chris@0: print vh.getOutputList(pluginKey)
Chris@0: handle = vh.loadPlugin(pluginKey,samplerate);
Chris@0: print "\n\nPlugin handle: ",handle
Chris@0: 
Chris@0: print "Output list of: ",pluginKey,"\n",vh.getOutputList(handle)
Chris@6: print "Have ", len(audio), " channels in audio"
Chris@0: 
Chris@0: #initialise: pluginhandle, channels, stepSize, blockSize
Chris@6: if vh.initialise(handle,len(audio),1024,1024):
Chris@6: 	print "Initialise succeeded"
Chris@6: else:
Chris@6: 	print "Initialise failed!"
Chris@6: 	exit(1)
Chris@6: 
Chris@6: #!!! continue with this lark
Chris@0: 
Chris@0: rt=frame2RealTime(100000,22050)
Chris@0: print type(rt)
Chris@0: 
Chris@6: out=vh.process(handle,list(audio),rt) ##!!! cast to list should not be necessary
Chris@0: output = vh.getOutput(handle,1);
Chris@0: 
Chris@0: print type(output)
Chris@0: print output
Chris@0: #print output[1].label
Chris@0: 
Chris@0: print "_______________OUTPUT TYPE_________:",type(out)
Chris@1: in_audio = frombuffer(audio,int16,-1,0)
Chris@0: out_audio = frombuffer(out,float32,-1,0)
Chris@0: subplot(211)
Chris@0: plot(in_audio)
Chris@0: subplot(212)
Chris@0: plot(out_audio)
Chris@0: 
Chris@0: show()
Chris@0: #do some processing here
Chris@0: 
Chris@0: #buffer is a multichannel frame or a numpy array containing samples
Chris@0: #buffer = vh.frame(audiodata,stepSize,blockSize)
Chris@0: 
Chris@0: #output = vh.process(handle,buffer)
Chris@0: 
Chris@0: #output is a list of list of features
Chris@0: 
Chris@0: vh.unloadPlugin(handle);
Chris@1: vh.unloadPlugin(handle); # test if it chrashes...
Chris@0: 
Chris@0: print vh.getOutputList(handle)
Chris@0: 
Chris@0: #cases:
Chris@0: #buffer = blockSize : evaluate
Chris@0: #buffer > blockSize : enframe and zeropad
Chris@0: #return:
Chris@0: #oneSamplePerStep, FixedSamplerate : can return numpy array
Chris@0: #variableSamplerate : list of featres only
Chris@0: 
Chris@1: #print dir(vampyhost)