| 1 | from aubioclass import * |
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| 2 | |
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| 3 | def get_onset_mode(nvalue): |
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| 4 | """ utility function to convert a string to aubio_onsetdetection_type """ |
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| 5 | if nvalue == 'complexdomain' or nvalue == 'complex' : |
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| 6 | return aubio_onset_complex |
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| 7 | elif nvalue == 'hfc' : |
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| 8 | return aubio_onset_hfc |
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| 9 | elif nvalue == 'phase' : |
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| 10 | return aubio_onset_phase |
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| 11 | elif nvalue == 'specdiff' : |
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| 12 | return aubio_onset_specdiff |
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| 13 | elif nvalue == 'energy' : |
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| 14 | return aubio_onset_energy |
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| 15 | elif nvalue == 'kl' : |
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| 16 | return aubio_onset_kl |
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| 17 | elif nvalue == 'mkl' : |
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| 18 | return aubio_onset_mkl |
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| 19 | elif nvalue == 'dual' : |
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| 20 | return 'dual' |
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| 21 | else: |
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| 22 | import sys |
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| 23 | print "unknown onset detection function selected" |
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| 24 | sys.exit(1) |
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| 25 | |
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| 26 | def get_pitch_mode(nvalue): |
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| 27 | """ utility function to convert a string to aubio_pitchdetection_type """ |
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| 28 | if nvalue == 'mcomb' : |
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| 29 | return aubio_pitch_mcomb |
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| 30 | elif nvalue == 'yin' : |
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| 31 | return aubio_pitch_yin |
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| 32 | elif nvalue == 'fcomb' : |
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| 33 | return aubio_pitch_fcomb |
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| 34 | elif nvalue == 'schmitt': |
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| 35 | return aubio_pitch_schmitt |
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| 36 | else: |
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| 37 | import sys |
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| 38 | print "error: unknown pitch detection function selected" |
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| 39 | sys.exit(1) |
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| 40 | |
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| 41 | def check_onset_mode(option, opt, value, parser): |
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| 42 | """ wrapper function to convert a list of modes to |
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| 43 | aubio_onsetdetection_type """ |
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| 44 | nvalues = parser.rargs[0].split(',') |
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| 45 | val = [] |
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| 46 | for nvalue in nvalues: |
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| 47 | val.append(get_onset_mode(nvalue)) |
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| 48 | setattr(parser.values, option.dest, val) |
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| 49 | |
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| 50 | def check_pitch_mode(option, opt, value, parser): |
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| 51 | """ utility function to convert a string to aubio_pitchdetection_type""" |
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| 52 | nvalues = parser.rargs[0].split(',') |
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| 53 | val = [] |
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| 54 | for nvalue in nvalues: |
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| 55 | val.append(get_pitch_mode(nvalue)) |
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| 56 | setattr(parser.values, option.dest, val) |
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| 57 | |
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| 58 | def check_pitchm_mode(option, opt, value, parser): |
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| 59 | """ utility function to convert a string to aubio_pitchdetection_mode """ |
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| 60 | nvalue = parser.rargs[0] |
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| 61 | if nvalue == 'freq' : |
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| 62 | setattr(parser.values, option.dest, aubio_pitchm_freq) |
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| 63 | elif nvalue == 'midi' : |
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| 64 | setattr(parser.values, option.dest, aubio_pitchm_midi) |
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| 65 | elif nvalue == 'cent' : |
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| 66 | setattr(parser.values, option.dest, aubio_pitchm_cent) |
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| 67 | elif nvalue == 'bin' : |
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| 68 | setattr(parser.values, option.dest, aubio_pitchm_bin) |
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| 69 | else: |
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| 70 | import sys |
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| 71 | print "error: unknown pitch detection output selected" |
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| 72 | sys.exit(1) |
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| 73 | |
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| 74 | class taskparams(object): |
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| 75 | """ default parameters for task classes """ |
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| 76 | def __init__(self,input=None,output=None): |
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| 77 | self.silence = -70 |
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| 78 | self.derivate = False |
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| 79 | self.localmin = False |
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| 80 | self.delay = 4. |
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| 81 | self.storefunc = False |
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| 82 | self.bufsize = 512 |
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| 83 | self.hopsize = 256 |
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| 84 | self.samplerate = 44100 |
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| 85 | self.tol = 0.05 |
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| 86 | self.mintol = 0.0 |
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| 87 | self.step = float(self.hopsize)/float(self.samplerate) |
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| 88 | self.threshold = 0.1 |
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| 89 | self.onsetmode = 'dual' |
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| 90 | self.pitchmode = 'yin' |
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| 91 | self.pitchsmooth = 7 |
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| 92 | self.pitchmin=100. |
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| 93 | self.pitchmax=1000. |
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| 94 | self.dcthreshold = -1. |
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| 95 | self.omode = aubio_pitchm_freq |
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| 96 | self.verbose = False |
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| 97 | |
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| 98 | class task(taskparams): |
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| 99 | """ default template class to apply tasks on a stream """ |
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| 100 | def __init__(self,input,output=None,params=None): |
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| 101 | """ open the input file and initialize default argument |
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| 102 | parameters should be set *before* calling this method. |
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| 103 | """ |
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| 104 | import time |
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| 105 | self.tic = time.time() |
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| 106 | if params == None: self.params = taskparams() |
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| 107 | else: self.params = params |
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| 108 | self.frameread = 0 |
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| 109 | self.readsize = self.params.hopsize |
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| 110 | self.input = input |
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| 111 | self.filei = sndfile(self.input) |
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| 112 | self.srate = self.filei.samplerate() |
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| 113 | self.channels = self.filei.channels() |
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| 114 | self.params.step = float(self.params.hopsize)/float(self.srate) |
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| 115 | self.myvec = fvec(self.params.hopsize,self.channels) |
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| 116 | self.output = output |
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| 117 | |
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| 118 | def __call__(self): |
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| 119 | self.readsize = self.filei.read(self.params.hopsize,self.myvec) |
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| 120 | self.frameread += 1 |
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| 121 | |
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| 122 | def compute_all(self): |
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| 123 | """ Compute data """ |
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| 124 | mylist = [] |
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| 125 | while(self.readsize==self.params.hopsize): |
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| 126 | tmp = self() |
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| 127 | if tmp: |
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| 128 | mylist.append(tmp) |
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| 129 | if self.params.verbose: |
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| 130 | self.fprint(tmp) |
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| 131 | return mylist |
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| 132 | |
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| 133 | def fprint(self,foo): |
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| 134 | print foo |
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| 135 | |
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| 136 | def eval(self,results): |
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| 137 | """ Eval data """ |
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| 138 | pass |
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| 139 | |
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| 140 | def plot(self): |
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| 141 | """ Plot data """ |
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| 142 | pass |
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| 143 | |
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| 144 | def time(self): |
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| 145 | import time |
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| 146 | print "CPU time is now %f seconds," % time.clock(), |
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| 147 | print "task execution took %f seconds" % (time.time() - self.tic) |
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| 148 | |
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| 149 | class tasksilence(task): |
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| 150 | wassilence = 1 |
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| 151 | issilence = 1 |
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| 152 | def __call__(self): |
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| 153 | task.__call__(self) |
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| 154 | if (aubio_silence_detection(self.myvec(),self.params.silence)==1): |
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| 155 | if self.wassilence == 1: self.issilence = 1 |
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| 156 | else: self.issilence = 2 |
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| 157 | self.wassilence = 1 |
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| 158 | else: |
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| 159 | if self.wassilence <= 0: self.issilence = 0 |
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| 160 | else: self.issilence = -1 |
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| 161 | self.wassilence = 0 |
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| 162 | if self.issilence == -1: |
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| 163 | return max(self.frameread-self.params.delay,0.), -1 |
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| 164 | elif self.issilence == 2: |
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| 165 | return max(self.frameread+self.params.delay,0.), 2 |
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| 166 | |
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| 167 | def fprint(self,foo): |
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| 168 | print self.params.step*foo[0], |
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| 169 | if foo[1] == 2: print "OFF" |
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| 170 | else: print "ON" |
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| 171 | |
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| 172 | class taskpitch(task): |
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| 173 | def __init__(self,input,params=None): |
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| 174 | task.__init__(self,input,params=params) |
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| 175 | self.shortlist = [0. for i in range(self.params.pitchsmooth)] |
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| 176 | self.pitchdet = pitchdetection(mode=get_pitch_mode(self.params.pitchmode), |
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| 177 | bufsize=self.params.bufsize, |
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| 178 | hopsize=self.params.hopsize, |
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| 179 | channels=self.channels, |
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| 180 | samplerate=self.srate, |
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| 181 | omode=self.params.omode) |
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| 182 | |
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| 183 | def __call__(self): |
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| 184 | from median import short_find |
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| 185 | task.__call__(self) |
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| 186 | if (aubio_silence_detection(self.myvec(),self.params.silence)==1): |
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| 187 | freq = -1. |
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| 188 | else: |
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| 189 | freq = self.pitchdet(self.myvec) |
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| 190 | minpitch = self.params.pitchmin |
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| 191 | maxpitch = self.params.pitchmax |
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| 192 | if maxpitch and freq > maxpitch : |
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| 193 | freq = -1. |
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| 194 | elif minpitch and freq < minpitch : |
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| 195 | freq = -1. |
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| 196 | if self.params.pitchsmooth: |
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| 197 | self.shortlist.append(freq) |
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| 198 | self.shortlist.pop(0) |
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| 199 | smoothfreq = short_find(self.shortlist, |
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| 200 | len(self.shortlist)/2) |
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| 201 | return smoothfreq |
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| 202 | else: |
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| 203 | return freq |
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| 204 | |
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| 205 | def compute_all(self): |
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| 206 | """ Compute data """ |
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| 207 | mylist = [] |
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| 208 | while(self.readsize==self.params.hopsize): |
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| 209 | freq = self() |
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| 210 | mylist.append(freq) |
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| 211 | if self.params.verbose: |
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| 212 | self.fprint("%s\t%s" % (self.frameread*self.params.step,freq)) |
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| 213 | return mylist |
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| 214 | |
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| 215 | def gettruth(self): |
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| 216 | """ extract ground truth array in frequency """ |
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| 217 | import os.path |
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| 218 | """ from wavfile.txt """ |
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| 219 | datafile = self.input.replace('.wav','.txt') |
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| 220 | if datafile == self.input: datafile = "" |
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| 221 | """ from file.<midinote>.wav """ |
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| 222 | # FIXME very weak check |
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| 223 | floatpit = self.input.split('.')[-2] |
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| 224 | |
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| 225 | if not os.path.isfile(datafile) and not len(self.input.split('.')) < 3: |
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| 226 | print "no ground truth " |
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| 227 | return False,False |
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| 228 | elif floatpit: |
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| 229 | try: |
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| 230 | self.truth = aubio_miditofreq(float(floatpit)) |
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| 231 | print "ground truth found in filename:", self.truth |
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| 232 | tasksil = tasksilence(self.input) |
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| 233 | time,pitch =[],[] |
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| 234 | while(tasksil.readsize==tasksil.params.hopsize): |
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| 235 | tasksil() |
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| 236 | time.append(tasksil.params.step*tasksil.frameread) |
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| 237 | if not tasksil.issilence: |
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| 238 | pitch.append(self.truth) |
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| 239 | else: |
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| 240 | pitch.append(-1.) |
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| 241 | return time,pitch #0,aubio_miditofreq(float(floatpit)) |
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| 242 | except ValueError: |
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| 243 | # FIXME very weak check |
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| 244 | if not os.path.isfile(datafile): |
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| 245 | print "no ground truth found" |
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| 246 | return 0,0 |
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| 247 | else: |
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| 248 | from aubio.txtfile import read_datafile |
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| 249 | values = read_datafile(datafile) |
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| 250 | time, pitch = [], [] |
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| 251 | for i in range(len(values)): |
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| 252 | time.append(values[i][0]) |
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| 253 | pitch.append(values[i][1]) |
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| 254 | return time,pitch |
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| 255 | |
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| 256 | def eval(self,results): |
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| 257 | def mmean(l): |
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| 258 | return sum(l)/max(float(len(l)),1) |
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| 259 | |
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| 260 | from median import percental |
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| 261 | timet,pitcht = self.gettruth() |
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| 262 | res = [] |
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| 263 | for i in results: |
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| 264 | #print i,self.truth |
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| 265 | if i <= 0: pass |
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| 266 | else: res.append(self.truth-i) |
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| 267 | if not res or len(res) < 3: |
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| 268 | avg = self.truth; med = self.truth |
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| 269 | else: |
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| 270 | avg = mmean(res) |
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| 271 | med = percental(res,len(res)/2) |
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| 272 | return self.truth, self.truth-med, self.truth-avg |
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| 273 | |
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| 274 | def plot(self,pitch,wplot,oplots,outplot=None): |
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| 275 | import numarray |
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| 276 | import Gnuplot |
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| 277 | |
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| 278 | downtime = self.params.step*numarray.arange(len(pitch)) |
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| 279 | oplots.append(Gnuplot.Data(downtime,pitch,with='lines', |
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| 280 | title=self.params.pitchmode)) |
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| 281 | |
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| 282 | |
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| 283 | def plotplot(self,wplot,oplots,outplot=None,multiplot = 1): |
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| 284 | from aubio.gnuplot import gnuplot_init, audio_to_array, make_audio_plot |
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| 285 | import re |
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| 286 | import Gnuplot |
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| 287 | # audio data |
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| 288 | time,data = audio_to_array(self.input) |
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| 289 | f = make_audio_plot(time,data) |
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| 290 | |
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| 291 | # check if ground truth exists |
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| 292 | timet,pitcht = self.gettruth() |
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| 293 | if timet and pitcht: |
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| 294 | oplots = [Gnuplot.Data(timet,pitcht,with='lines', |
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| 295 | title='ground truth')] + oplots |
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| 296 | |
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| 297 | t = Gnuplot.Data(0,0,with='impulses') |
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| 298 | |
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| 299 | g = gnuplot_init(outplot) |
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| 300 | g('set title \'%s\'' % (re.sub('.*/','',self.input))) |
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| 301 | g('set multiplot') |
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| 302 | # hack to align left axis |
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| 303 | g('set lmargin 15') |
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| 304 | # plot waveform and onsets |
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| 305 | g('set size 1,0.3') |
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| 306 | g('set origin 0,0.7') |
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| 307 | g('set xrange [0:%f]' % max(time)) |
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| 308 | g('set yrange [-1:1]') |
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| 309 | g.ylabel('amplitude') |
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| 310 | g.plot(f) |
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| 311 | g('unset title') |
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| 312 | # plot onset detection function |
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| 313 | |
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| 314 | |
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| 315 | g('set size 1,0.7') |
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| 316 | g('set origin 0,0') |
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| 317 | g('set xrange [0:%f]' % max(time)) |
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| 318 | g('set yrange [100:%f]' % self.params.pitchmax) |
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| 319 | g('set key right top') |
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| 320 | g('set noclip one') |
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| 321 | g('set format x ""') |
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| 322 | g('set log y') |
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| 323 | #g.xlabel('time (s)') |
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| 324 | g.ylabel('f0 (Hz)') |
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| 325 | if multiplot: |
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| 326 | for i in range(len(oplots)): |
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| 327 | # plot onset detection functions |
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| 328 | g('set size 1,%f' % (0.7/(len(oplots)))) |
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| 329 | g('set origin 0,%f' % (float(i)*0.7/(len(oplots)))) |
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| 330 | g('set xrange [0:%f]' % max(time)) |
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| 331 | g.plot(oplots[i]) |
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| 332 | else: |
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| 333 | g.plot(*oplots) |
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| 334 | g('unset multiplot') |
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| 335 | |
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| 336 | |
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| 337 | class taskonset(task): |
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| 338 | def __init__(self,input,output=None,params=None): |
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| 339 | """ open the input file and initialize arguments |
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| 340 | parameters should be set *before* calling this method. |
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| 341 | """ |
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| 342 | task.__init__(self,input,params=params) |
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| 343 | self.opick = onsetpick(self.params.bufsize, |
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| 344 | self.params.hopsize, |
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| 345 | self.channels, |
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| 346 | self.myvec, |
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| 347 | self.params.threshold, |
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| 348 | mode=get_onset_mode(self.params.onsetmode), |
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| 349 | dcthreshold=self.params.dcthreshold, |
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| 350 | derivate=self.params.derivate) |
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| 351 | self.olist = [] |
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| 352 | self.ofunc = [] |
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| 353 | self.maxofunc = 0 |
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| 354 | self.last = 0 |
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| 355 | if self.params.localmin: |
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| 356 | self.ovalist = [0., 0., 0., 0., 0.] |
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| 357 | |
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| 358 | def __call__(self): |
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| 359 | task.__call__(self) |
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| 360 | isonset,val = self.opick.do(self.myvec) |
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| 361 | if (aubio_silence_detection(self.myvec(),self.params.silence)): |
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| 362 | isonset=0 |
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| 363 | if self.params.storefunc: |
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| 364 | self.ofunc.append(val) |
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| 365 | if self.params.localmin: |
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| 366 | if val > 0: self.ovalist.append(val) |
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| 367 | else: self.ovalist.append(0) |
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| 368 | self.ovalist.pop(0) |
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| 369 | if (isonset == 1): |
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| 370 | if self.params.localmin: |
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| 371 | # find local minima before peak |
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| 372 | i=len(self.ovalist)-1 |
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| 373 | while self.ovalist[i-1] < self.ovalist[i] and i > 0: |
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| 374 | i -= 1 |
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| 375 | now = (self.frameread+1-i) |
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| 376 | else: |
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| 377 | now = self.frameread |
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| 378 | # take back delay |
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| 379 | if self.params.delay != 0.: now -= self.params.delay |
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| 380 | if now < 0 : |
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| 381 | now = 0 |
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| 382 | if self.params.mintol: |
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| 383 | # prune doubled |
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| 384 | if (now - self.last) > self.params.mintol: |
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| 385 | self.last = now |
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| 386 | return now, val |
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| 387 | else: |
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| 388 | return now, val |
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| 389 | |
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| 390 | |
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| 391 | def fprint(self,foo): |
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| 392 | print self.params.step*foo[0] |
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| 393 | |
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| 394 | def eval(self,inputdata,ftru,mode='roc',vmode=''): |
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| 395 | from txtfile import read_datafile |
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| 396 | from onsetcompare import onset_roc, onset_diffs, onset_rocloc |
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| 397 | ltru = read_datafile(ftru,depth=0) |
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| 398 | lres = [] |
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| 399 | for i in range(len(inputdata)): lres.append(inputdata[i][0]*self.params.step) |
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| 400 | if vmode=='verbose': |
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| 401 | print "Running with mode %s" % self.params.onsetmode, |
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| 402 | print " and threshold %f" % self.params.threshold, |
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| 403 | print " on file", self.input |
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| 404 | #print ltru; print lres |
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| 405 | if mode == 'local': |
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| 406 | l = onset_diffs(ltru,lres,self.params.tol) |
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| 407 | mean = 0 |
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| 408 | for i in l: mean += i |
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| 409 | if len(l): mean = "%.3f" % (mean/len(l)) |
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| 410 | else: mean = "?0" |
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| 411 | return l, mean |
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| 412 | elif mode == 'roc': |
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| 413 | self.orig, self.missed, self.merged, \ |
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| 414 | self.expc, self.bad, self.doubled = \ |
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| 415 | onset_roc(ltru,lres,self.params.tol) |
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| 416 | elif mode == 'rocloc': |
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| 417 | self.v = {} |
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| 418 | self.v['orig'], self.v['missed'], self.v['Tm'], \ |
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| 419 | self.v['expc'], self.v['bad'], self.v['Td'], \ |
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| 420 | self.v['l'], self.v['labs'] = \ |
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| 421 | onset_rocloc(ltru,lres,self.params.tol) |
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| 422 | |
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| 423 | def plot(self,onsets,ofunc,wplot,oplots,nplot=False): |
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| 424 | import Gnuplot, Gnuplot.funcutils |
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| 425 | import aubio.txtfile |
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| 426 | import os.path |
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| 427 | import numarray |
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| 428 | from aubio.onsetcompare import onset_roc |
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| 429 | |
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| 430 | x1,y1,y1p = [],[],[] |
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| 431 | oplot = [] |
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| 432 | if self.params.onsetmode in ('mkl','kl'): ofunc[0:10] = [0] * 10 |
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| 433 | |
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| 434 | self.lenofunc = len(ofunc) |
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| 435 | self.maxofunc = max(ofunc) |
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| 436 | # onset detection function |
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| 437 | downtime = numarray.arange(len(ofunc))*self.params.step |
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| 438 | oplot.append(Gnuplot.Data(downtime,ofunc,with='lines',title=self.params.onsetmode)) |
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| 439 | |
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| 440 | # detected onsets |
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| 441 | if not nplot: |
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| 442 | for i in onsets: |
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| 443 | x1.append(i[0]*self.params.step) |
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| 444 | y1.append(self.maxofunc) |
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| 445 | y1p.append(-self.maxofunc) |
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| 446 | #x1 = numarray.array(onsets)*self.params.step |
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| 447 | #y1 = self.maxofunc*numarray.ones(len(onsets)) |
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| 448 | if x1: |
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| 449 | oplot.append(Gnuplot.Data(x1,y1,with='impulses')) |
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| 450 | wplot.append(Gnuplot.Data(x1,y1p,with='impulses')) |
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| 451 | |
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| 452 | oplots.append(oplot) |
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| 453 | |
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| 454 | # check if ground truth datafile exists |
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| 455 | datafile = self.input.replace('.wav','.txt') |
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| 456 | if datafile == self.input: datafile = "" |
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| 457 | if not os.path.isfile(datafile): |
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| 458 | self.title = "" #"(no ground truth)" |
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| 459 | else: |
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| 460 | t_onsets = aubio.txtfile.read_datafile(datafile) |
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| 461 | x2 = numarray.array(t_onsets).resize(len(t_onsets)) |
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| 462 | y2 = self.maxofunc*numarray.ones(len(t_onsets)) |
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| 463 | wplot.append(Gnuplot.Data(x2,y2,with='impulses')) |
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| 464 | |
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| 465 | tol = 0.050 |
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| 466 | |
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| 467 | orig, missed, merged, expc, bad, doubled = \ |
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| 468 | onset_roc(x2,x1,tol) |
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| 469 | self.title = "GD %2.3f%% FP %2.3f%%" % \ |
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| 470 | ((100*float(orig-missed-merged)/(orig)), |
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| 471 | (100*float(bad+doubled)/(orig))) |
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| 472 | |
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| 473 | |
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| 474 | def plotplot(self,wplot,oplots,outplot=None): |
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| 475 | from aubio.gnuplot import gnuplot_init, audio_to_array, make_audio_plot |
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| 476 | import re |
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| 477 | # audio data |
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| 478 | time,data = audio_to_array(self.input) |
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| 479 | wplot = [make_audio_plot(time,data)] + wplot |
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| 480 | self.title = self.input |
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| 481 | # prepare the plot |
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| 482 | g = gnuplot_init(outplot) |
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| 483 | |
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| 484 | g('set multiplot') |
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| 485 | |
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| 486 | # hack to align left axis |
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| 487 | g('set lmargin 6') |
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| 488 | g('set tmargin 0') |
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| 489 | g('set format x ""') |
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| 490 | g('set format y ""') |
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| 491 | g('set noytics') |
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| 492 | |
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| 493 | for i in range(len(oplots)): |
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| 494 | # plot onset detection functions |
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| 495 | g('set size 1,%f' % (0.7/(len(oplots)))) |
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| 496 | g('set origin 0,%f' % (float(i)*0.7/(len(oplots)))) |
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| 497 | g('set xrange [0:%f]' % (self.lenofunc*self.params.step)) |
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| 498 | g.plot(*oplots[i]) |
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| 499 | |
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| 500 | g('set tmargin 3.0') |
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| 501 | g('set xlabel "time (s)" 1,0') |
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| 502 | g('set format x "%1.1f"') |
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| 503 | |
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| 504 | g('set title \'%s %s\'' % (re.sub('.*/','',self.input),self.title)) |
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| 505 | |
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| 506 | # plot waveform and onsets |
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| 507 | g('set size 1,0.3') |
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| 508 | g('set origin 0,0.7') |
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| 509 | g('set xrange [0:%f]' % max(time)) |
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| 510 | g('set yrange [-1:1]') |
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| 511 | g.ylabel('amplitude') |
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| 512 | g.plot(*wplot) |
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| 513 | |
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| 514 | g('unset multiplot') |
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| 515 | |
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| 516 | class taskcut(task): |
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| 517 | def __init__(self,input,slicetimes,params=None,output=None): |
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| 518 | """ open the input file and initialize arguments |
|---|
| 519 | parameters should be set *before* calling this method. |
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| 520 | """ |
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| 521 | task.__init__(self,input,output=None,params=params) |
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| 522 | self.newname = "%s%s%09.5f%s%s" % (self.input.split(".")[0].split("/")[-1],".", |
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| 523 | self.frameread*self.params.step,".",self.input.split(".")[-1]) |
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| 524 | self.fileo = sndfile(self.newname,model=self.filei) |
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| 525 | self.myvec = fvec(self.params.hopsize,self.channels) |
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| 526 | self.mycopy = fvec(self.params.hopsize,self.channels) |
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| 527 | self.slicetimes = slicetimes |
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| 528 | |
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| 529 | def __call__(self): |
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| 530 | task.__call__(self) |
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| 531 | # write to current file |
|---|
| 532 | if len(self.slicetimes) and self.frameread >= self.slicetimes[0][0]: |
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| 533 | self.slicetimes.pop(0) |
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| 534 | # write up to 1st zero crossing |
|---|
| 535 | zerocross = 0 |
|---|
| 536 | while ( abs( self.myvec.get(zerocross,0) ) > self.params.zerothres ): |
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| 537 | zerocross += 1 |
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| 538 | writesize = self.fileo.write(zerocross,self.myvec) |
|---|
| 539 | fromcross = 0 |
|---|
| 540 | while (zerocross < self.readsize): |
|---|
| 541 | for i in range(self.channels): |
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| 542 | self.mycopy.set(self.myvec.get(zerocross,i),fromcross,i) |
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| 543 | fromcross += 1 |
|---|
| 544 | zerocross += 1 |
|---|
| 545 | del self.fileo |
|---|
| 546 | self.fileo = sndfile("%s%s%09.5f%s%s" % |
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| 547 | (self.input.split(".")[0].split("/")[-1],".", |
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| 548 | self.frameread*self.params.step,".",self.input.split(".")[-1]),model=self.filei) |
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| 549 | writesize = self.fileo.write(fromcross,self.mycopy) |
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| 550 | else: |
|---|
| 551 | writesize = self.fileo.write(self.readsize,self.myvec) |
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| 552 | |
|---|
| 553 | class taskbeat(taskonset): |
|---|
| 554 | def __init__(self,input,params=None,output=None): |
|---|
| 555 | """ open the input file and initialize arguments |
|---|
| 556 | parameters should be set *before* calling this method. |
|---|
| 557 | """ |
|---|
| 558 | taskonset.__init__(self,input,output=None,params=params) |
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| 559 | self.btwinlen = 512**2/self.params.hopsize |
|---|
| 560 | self.btstep = self.btwinlen/4 |
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| 561 | self.btoutput = fvec(self.btstep,self.channels) |
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| 562 | self.dfframe = fvec(self.btwinlen,self.channels) |
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| 563 | self.bt = beattracking(self.btwinlen,self.channels) |
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| 564 | self.pos2 = 0 |
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| 565 | |
|---|
| 566 | def __call__(self): |
|---|
| 567 | taskonset.__call__(self) |
|---|
| 568 | # write to current file |
|---|
| 569 | if self.pos2 == self.btstep - 1 : |
|---|
| 570 | self.bt.do(self.dfframe,self.btoutput) |
|---|
| 571 | for i in range (self.btwinlen - self.btstep): |
|---|
| 572 | self.dfframe.set(self.dfframe.get(i+self.btstep,0),i,0) |
|---|
| 573 | for i in range(self.btwinlen - self.btstep, self.btwinlen): |
|---|
| 574 | self.dfframe.set(0,i,0) |
|---|
| 575 | self.pos2 = -1; |
|---|
| 576 | self.pos2 += 1 |
|---|
| 577 | val = self.opick.pp.getval() |
|---|
| 578 | self.dfframe.set(val,self.btwinlen - self.btstep + self.pos2,0) |
|---|
| 579 | i=0 |
|---|
| 580 | for i in range(1,int( self.btoutput.get(0,0) ) ): |
|---|
| 581 | if self.pos2 == self.btoutput.get(i,0) and \ |
|---|
| 582 | aubio_silence_detection(self.myvec(), |
|---|
| 583 | self.params.silence)!=1: |
|---|
| 584 | return self.frameread, 0 |
|---|
| 585 | |
|---|
| 586 | def eval(self,results): |
|---|
| 587 | pass |
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