src/songs/xml2smwi.py

   1 # -*- coding: utf-8 -*-
   2 """
   3 conversion d'un fichier musicxml en fichier .smwi
   4
   5 $Id$
   6 $URL$
   7 """
   8
   9 from app.musicxml import musicXml2Song
  10 from songs.Song import Song
  11 import sys
  12 import os.path
  13 from optparse import OptionParser
  14
  15 def main() :
  16     usage = "%prog musicXmlFile.xml [options]"
  17     op = OptionParser(usage)
  18     op.add_option("-i", "--part-index", dest="partIndex"
  19                  , default = 0
  20                  , help = "Index de la partie qui contient le champ.")
  21
  22     op.add_option("-p", '--print', dest='printNotes'
  23                   , action="store_true"
  24                   , default = False
  25                   , help = "Affiche les notes sur la sortie standard (debug)")
  26
  27     op.add_option("-c", '--no-chorus', dest='autoDetectChorus'
  28                 , action="store_false"
  29                 , default = True
  30                 , help = "désactive la détection du refrain")
  31
  32
  33     options, args = op.parse_args()
  34
  35     if len(args) != 1 :
  36         raise SystemExit(op.format_help())
  37
  38     part = musicXml2Song(args[0],
  39                          partIndex=options.partIndex,
  40                          autoDetectChorus=options.autoDetectChorus,
  41                          printNotes=options.printNotes)
  42
  43     midiNoteNumbers = []
  44     noteLengths = []
  45     lyrics = []
  46     for note, verseIndex in part.iterNotes(indefinitely=False) :
  47         midiNoteNumbers.append(note.midi)
  48         noteLengths.append(note.duration)
  49         lyrics.append(note.lyrics[verseIndex].syllabus())
  50
  51     #scale = [55, 57, 59, 60, 62, 64, 65, 67, 69, 71, 72]
  52     #scale = [n.midi for n in part.distinctNotes]
  53
  54     # houlala, c'est codé en dur !!!
  55     scale = [65, 67, 69, 71, 72, 74, 76, 77, 79, 81, 83]
  56     quarterNoteLength = 500
  57     #---
  58
  59     lowerNote = part.distinctNotes[0].midi
  60     higherNote = part.distinctNotes[-1].midi
  61     requiresExtendedScale = higherNote - lowerNote > 12 # une octave == 12 demi-tons
  62     song = Song(scale,
  63                 requiresExtendedScale=requiresExtendedScale,
  64                 midiNoteNumbers=midiNoteNumbers,
  65                 noteLengths=noteLengths,
  66                 lyrics=lyrics,
  67                 name=args[0],
  68                 quarterNoteLength=500)
  69     dest = os.path.abspath(__file__).split(os.path.sep)[:-1]
  70     dest.append('smwis')
  71     dest.append('%s.smwi' % os.path.splitext(os.path.basename(song.name))[0])
  72     dest = os.path.sep.join(dest)
  73     print dest
  74     song.save(dest)
  75
  76
  77 if __name__ == '__main__' :
  78     sys.exit(main())