#!/usr/bin/python

import aubio.gnuplot, sys

usage = "usage: %s [options] -i soundfile" % sys.argv[0]

def parse_args():
        from optparse import OptionParser
        parser = OptionParser(usage=usage)
        parser.add_option("-i","--input",
                          action="store", dest="filename", 
                          help="input sound file")
        parser.add_option("-x","--xsize",
                          action="store", dest="xsize", default=1., 
                          help="define xsize for plot")
        parser.add_option("-y","--ysize",
                          action="store", dest="ysize", default=1., 
                          help="define ysize for plot")
        parser.add_option("-O","--outplot",
                          action="store", dest="outplot", default=None, 
                          help="save plot to output.{ps,png}")
        (options, args) = parser.parse_args()
        if not options.filename: 
                 print "no file name given\n", usage
                 sys.exit(1)
        return options, args

options, args = parse_args()

if options.outplot: 
  extension = options.outplot.split('.')[-1] 
  outplot = '.'.join(options.outplot.split('.')[:-1])
else: 
  extension = ''
  outplot = None

aubio.gnuplot.plot_audio(options.filename.split(','),
  extension = extension,
  outplot = outplot,
  xsize=float(options.xsize),
  ysize=float(options.ysize))