source: python/aubio/task/utils.py @ 8595fe3

from aubio.aubioclass import *

def get_onset_mode(nvalue):
        """ utility function to convert a string to aubio_onsetdetection_type """
        if   nvalue == 'complexdomain' or nvalue == 'complex' :
                 return aubio_onset_complex
        elif nvalue == 'hfc'           :
                 return aubio_onset_hfc
        elif nvalue == 'phase'         :
                 return aubio_onset_phase
        elif nvalue == 'specdiff'      :
                 return aubio_onset_specdiff
        elif nvalue == 'energy'        :
                 return aubio_onset_energy
        elif nvalue == 'kl'            :
                 return aubio_onset_kl
        elif nvalue == 'mkl'           :
                 return aubio_onset_mkl
        elif nvalue == 'dual'          :
                 return 'dual'
        else:
                 import sys
                 print "unknown onset detection function selected"
                 sys.exit(1)

def get_pitch_mode(nvalue):
        """ utility function to convert a string to aubio_pitchdetection_type """
        if   nvalue == 'mcomb'  :
                 return aubio_pitch_mcomb
        elif nvalue == 'yin'    :
                 return aubio_pitch_yin
        elif nvalue == 'fcomb'  :
                 return aubio_pitch_fcomb
        elif nvalue == 'schmitt':
                 return aubio_pitch_schmitt
        else:
                 import sys
                 print "error: unknown pitch detection function selected"
                 sys.exit(1)

def check_onset_mode(option, opt, value, parser):
        """ wrapper function to convert a list of modes to 
                aubio_onsetdetection_type """
        nvalues = parser.rargs[0].split(',')
        val =  []
        for nvalue in nvalues:
                val.append(get_onset_mode(nvalue))
                setattr(parser.values, option.dest, val)

def check_pitch_mode(option, opt, value, parser):
        """ utility function to convert a string to aubio_pitchdetection_type"""
        nvalues = parser.rargs[0].split(',')
        val = []
        for nvalue in nvalues:
                val.append(get_pitch_mode(nvalue))
                setattr(parser.values, option.dest, val)

def check_pitchm_mode(option, opt, value, parser):
        """ utility function to convert a string to aubio_pitchdetection_mode """
        nvalue = parser.rargs[0]
        if   nvalue == 'freq'  :
                 setattr(parser.values, option.dest, aubio_pitchm_freq)
        elif nvalue == 'midi'  :
                 setattr(parser.values, option.dest, aubio_pitchm_midi)
        elif nvalue == 'cent'  :
                 setattr(parser.values, option.dest, aubio_pitchm_cent)
        elif nvalue == 'bin'   :
                 setattr(parser.values, option.dest, aubio_pitchm_bin)
        else:
                 import sys
                 print "error: unknown pitch detection output selected"
                 sys.exit(1)