source: python/scripts/aubiocut @ 9582713

feature/autosinkfeature/constantqfeature/pitchshiftfeature/pydocstringsfeature/timestretchpitchshiftsamplertimestretchyinfft+
Last change on this file since 9582713 was 9582713, checked in by Paul Brossier <piem@piem.org>, 8 years ago

python/setup.py: move programs to scripts

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1#! /usr/bin/env python
2
3""" this file was written by Paul Brossier
4  it is released under the GNU/GPL license.
5"""
6
7import sys
8#from aubio.task import *
9
10usage = "usage: %s [options] -i soundfile" % sys.argv[0]
11
12def parse_args():
13    from optparse import OptionParser
14    parser = OptionParser(usage=usage)
15    parser.add_option("-i", "--input", action = "store", dest = "source_file",
16            help="input sound file to analyse", metavar = "<source_file>")
17    parser.add_option("-m","--method",
18            action="store", dest="onset_method", default='default',
19            metavar = "<onset_method>",
20            help="onset detection method [default=default] \
21                    complexdomain|hfc|phase|specdiff|energy|kl|mkl")
22    # cutting methods
23    """
24    parser.add_option("-b","--beat",
25            action="store_true", dest="beat", default=False,
26            help="use beat locations")
27    parser.add_option("-S","--silencecut",
28            action="store_true", dest="silencecut", default=False,
29            help="use silence locations")
30    parser.add_option("-s","--silence",
31            metavar = "<value>",
32            action="store", dest="silence", default=-70,
33            help="silence threshold [default=-70]")
34            """
35    # algorithm parameters
36    parser.add_option("--samplerate",
37            metavar = "<freq>", type='int',
38            action="store", dest="samplerate", default=0,
39            help="samplerate at which the file should be represented")
40    parser.add_option("-B","--bufsize",
41            action="store", dest="bufsize", default=512,
42            metavar = "<size>",
43            help="buffer size [default=512]")
44    parser.add_option("-H","--hopsize",
45            metavar = "<size>",
46            action="store", dest="hopsize", default=256,
47            help="overlap size [default=256]")
48    parser.add_option("-t","--threshold",
49            metavar = "<value>", type="float",
50            action="store", dest="threshold", default=0.3,
51            help="onset peak picking threshold [default=0.3]")
52    parser.add_option("-c","--cut",
53            action="store_true", dest="cut", default=False,
54            help="cut input sound file at detected labels \
55                    best used with option -L")
56    """
57    parser.add_option("-D","--delay",
58            action = "store", dest = "delay", type = "float",
59            metavar = "<seconds>", default=0,
60            help="number of seconds to take back [default=system]\
61                    default system delay is 3*hopsize/samplerate")
62    parser.add_option("-C","--dcthreshold",
63            metavar = "<value>",
64            action="store", dest="dcthreshold", default=1.,
65            help="onset peak picking DC component [default=1.]")
66    parser.add_option("-M","--mintol",
67            metavar = "<value>",
68            action="store", dest="mintol", default=0.048,
69            help="minimum inter onset interval [default=0.048]")
70    parser.add_option("-L","--localmin",
71            action="store_true", dest="localmin", default=False,
72            help="use local minima after peak detection")
73    parser.add_option("-d","--derivate",
74            action="store_true", dest="derivate", default=False,
75            help="derivate onset detection function")
76    parser.add_option("-z","--zerocross",
77            metavar = "<value>",
78            action="store", dest="zerothres", default=0.008,
79            help="zero-crossing threshold for slicing [default=0.00008]")
80            """
81    # plotting functions
82    """
83    parser.add_option("-p","--plot",
84            action="store_true", dest="plot", default=False,
85            help="draw plot")
86    parser.add_option("-x","--xsize",
87            metavar = "<size>",
88            action="store", dest="xsize", default=1.,
89            type='float', help="define xsize for plot")
90    parser.add_option("-y","--ysize",
91            metavar = "<size>",
92            action="store", dest="ysize", default=1.,
93            type='float', help="define ysize for plot")
94    parser.add_option("-f","--function",
95            action="store_true", dest="func", default=False,
96            help="print detection function")
97    parser.add_option("-n","--no-onsets",
98            action="store_true", dest="nplot", default=False,
99            help="do not plot detected onsets")
100    parser.add_option("-O","--outplot",
101            metavar = "<output_image>",
102            action="store", dest="outplot", default=None,
103            help="save plot to output.{ps,png}")
104    parser.add_option("-F","--spectrogram",
105            action="store_true", dest="spectro", default=False,
106            help="add spectrogram to the plot")
107    """
108    parser.add_option("-v","--verbose",
109            action="store_true", dest="verbose", default=True,
110            help="make lots of noise [default]")
111    parser.add_option("-q","--quiet",
112            action="store_false", dest="verbose", default=True,
113            help="be quiet")
114    (options, args) = parser.parse_args()
115    if not options.source_file:
116        print "no file name given\n", usage
117        sys.exit(1)
118    return options, args
119
120if __name__ == '__main__':
121    options, args = parse_args()
122
123    hopsize = options.hopsize
124    bufsize = options.bufsize
125    samplerate = options.samplerate
126    source_file = options.source_file
127
128    from aubio import onset, source, sink
129
130    s = source(source_file, samplerate, hopsize)
131    if samplerate == 0: samplerate = s.get_samplerate()
132
133    o = onset(options.onset_method, bufsize, hopsize)
134    o.set_threshold(options.threshold)
135
136    slice_number = 0
137    #if options.cut:
138    this_slice = sink('/tmp/t-%02d.wav' % slice_number, samplerate)
139
140    timestamps = []
141    block_read = 0
142    while True:
143        samples, read = s()
144        #ring_buffer = hstack([ring_buffer, samples])
145        is_onset = o(samples)
146        if is_onset:
147            this_onset = (block_read - 4. + is_onset[0]) * hopsize
148            if options.verbose:
149                print "%.4f" % ( this_onset / samplerate )
150            timestamps.append (this_onset)
151            del this_slice
152            slice_number += 1
153            this_slice = sink('/tmp/t-%02d.wav' % slice_number, samplerate)
154        this_slice(samples, read)
155        block_read += 1
156        if read < hopsize: break
157
158    # print some info
159    duration = float ( block_read * hopsize + read ) / samplerate
160    nstamps = len(timestamps)
161    info = 'found %(nstamps)d timestamps in %(source_file)s' % locals()
162    info += ' (read %(duration).2fs at %(samplerate)dHz)\n' % locals()
163    sys.stderr.write(info)
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