python/aubioplot-spec

   1 #! /usr/bin/python
   2
   3 """ this file was written by Paul Brossier
   4   it is released under the GNU/GPL license.
   5 """
   6
   7 import sys
   8 from aubio.gnuplot import gnuplot_create,gnuplot_addargs,plot_spec
   9
  10 usage = "usage: %s [options] -i soundfile" % sys.argv[0]
  11
  12 def parse_args():
  13         from optparse import OptionParser
  14         parser = OptionParser(usage=usage)
  15         parser.add_option("-i","--input",
  16                           action="store", dest="filename",
  17                           help="input sound file")
  18         parser.add_option("-M","--maxf",
  19                           action="store", dest="maxf", default=10000.,
  20                           type='float',help="higher frequency limit")
  21         parser.add_option("-L","--minf",
  22                           action="store", dest="minf", default=0.,
  23                           type='float',help="lower frequency limit")
  24         parser.add_option("-l","--log",
  25                           action="store_true", dest="log", default=False,
  26                           help="plot on a logarithmic scale")
  27         parser.add_option("-B","--bufsize", type='int',
  28                           action="store", dest="bufsize", default=8192,
  29                           help="buffer size [default=8192]")
  30         parser.add_option("-H","--hopsize", type='int',
  31                           action="store", dest="hopsize", default=1024,
  32                           help="overlap size [default=1024]")
  33         gnuplot_addargs(parser)
  34         (options, args) = parser.parse_args()
  35         if not options.filename:
  36                  print "no file name given\n", usage
  37                  sys.exit(1)
  38         return options, args
  39
  40 options, args = parse_args()
  41 filename = options.filename
  42
  43 if options.outplot:
  44   extension = options.outplot.split('.')[-1]
  45   outplot = '.'.join(options.outplot.split('.')[:-1])
  46 else:
  47   extension = ''
  48   outplot = None
  49
  50 g = gnuplot_create(outplot,extension,options)
  51 plot_spec(filename, g, options)