X-Git-Url: https://scm.cri.minesparis.psl.eu/git/minwii.git/blobdiff_plain/a5a242616d9e5d20e507d810118ff562d7a277f1..9d4a748a0863cd7f9dd919362fb2c989e41f5f06:/src/songs/musicxmltosong.py diff --git a/src/songs/musicxmltosong.py b/src/songs/musicxmltosong.py deleted file mode 100755 index 3de33ca..0000000 --- a/src/songs/musicxmltosong.py +++ /dev/null @@ -1,127 +0,0 @@ -# -*- coding: utf-8 -*- -""" -converstion d'un fichier musicxml en objet song minwii. - -$Id$ -$URL$ -""" -import sys -from types import StringTypes -from xml.dom.minidom import parse -from optparse import OptionParser -from Song import Song - -# Do4 <=> midi 60 -OCTAVE_REF = 4 -DIATO_SCALE = {'C' : 60, - 'D' : 62, - 'E' : 64, - 'F' : 65, - 'G' : 67, - 'A' : 69, - 'B' : 71} -_marker = [] - - -class Note(object) : - def __init__(self, node, divisions) : - self.step = _getNodeValue(node, 'pitch/step') - self.octave = int(_getNodeValue(node, 'pitch/octave')) - self.alter = int(_getNodeValue(node, 'pitch/alter', 0)) - self._duration = float(_getNodeValue(node, 'duration')) - self.lyric = _getNodeValue(node, 'lyric/text', '') - - self.divisions = divisions - - @property - def midi(self) : - mid = DIATO_SCALE[self.step] - mid = mid + (self.octave - OCTAVE_REF) * 12 - mid = mid + self.alter - return mid - - @property - def duration(self) : - return self._duration / self.divisions - - @property - def name(self) : - name = '%s%d' % (self.step, self.octave) - if self.alter < 0 : - alterext = 'b' - else : - alterext = '#' - name = '%s%s' % (name, abs(self.alter) * alterext) - return name - - - - -def _getNodeValue(node, path, default=_marker) : - try : - for name in path.split('/') : - node = node.getElementsByTagName(name)[0] - return node.firstChild.nodeValue - except : - if default is _marker : - raise - else : - return default - -def musicXml2Song(input, output, partIndex=0, printNotes=False) : - if isinstance(input, StringTypes) : - input = open(input, 'r') - - d = parse(input) - doc = d.documentElement - - # TODO conversion préalable score-timewise -> score-partwise - assert doc.nodeName == u'score-partwise' - - parts = doc.getElementsByTagName('part') - leadPart = parts[partIndex] - - # divisions de la noire - divisions = 0 - midiNotes, durations, lyrics = [], [], [] - - for measureNode in leadPart.getElementsByTagName('measure') : - divisions = int(_getNodeValue(measureNode, 'attributes/divisions', divisions)) - for noteNode in measureNode.getElementsByTagName('note') : - note = Note(noteNode, divisions) - if printNotes : - print note.name, note.midi, note.duration, note.lyric - midiNotes.append(note.midi) - durations.append(note.duration) - lyrics.append(note.lyric) - - song = Song(None, - midiNoteNumbers = midiNotes, - noteLengths = durations, - lyrics = lyrics, - notesInExtendedScale=None) - song.save(output) - - -def main() : - usage = "%prog musicXmlFile.xml outputSongFile.smwi [options]" - op = OptionParser(usage) - op.add_option("-i", "--part-index", dest="partIndex" - , default = 0 - , help = "Index de la partie qui contient le champ.") - op.add_option("-p", '--print', dest='printNotes' - , action="store_true" - , default = False - , help = "Affiche les notes sur la sortie standard (debug)") - - options, args = op.parse_args() - - if len(args) != 2 : - raise SystemExit(op.format_help()) - - musicXml2Song(args[0], args[1], partIndex=options.partIndex, printNotes=options.printNotes) - - - -if __name__ == '__main__' : - sys.exit(main())