Ajout d'un fichier d'essai de fluidsynth.

[minwii.git] / src / songs / musicxmltosong.py

diff --git a/src/songs/musicxmltosong.py b/src/songs/musicxmltosong.py
index 25822b3..d24d81a 100755 (executable)
--- a/src/songs/musicxmltosong.py
+++ b/src/songs/musicxmltosong.py
@@ -9,7 +9,8 @@ import sys
 from types import StringTypes
 from xml.dom.minidom import parse
 from optparse import OptionParser
 from types import StringTypes
 from xml.dom.minidom import parse
 from optparse import OptionParser

-from Song import Song
+from itertools import cycle
+#from Song import Song

 
 # Do4 <=> midi 60
 OCTAVE_REF = 4
 
 # Do4 <=> midi 60
 OCTAVE_REF = 4


@@ -20,44 +21,173 @@ DIATO_SCALE = {'C' : 60,
                'G' : 67,
                'A' : 69,
                'B' : 71}
                'G' : 67,
                'A' : 69,
                'B' : 71}

+
+FR_NOTES = {'C' : u'Do',
+            'D' : u'Ré',
+            'E' : u'Mi',
+            'F' : u'Fa',
+            'G' : u'Sol',
+            'A' : u'La',
+            'B' : u'Si'}
+

 _marker = []
 
 class Part(object) :
     
 _marker = []
 
 class Part(object) :
     

-    def __init__(self, node) :
+    requiresExtendedScale = False
+    scale = [55, 57, 59, 60, 62, 64, 65, 67, 69, 71, 72]
+    quarterNoteLength = 400
+    
+    def __init__(self, node, autoDetectChorus=True) :

         self.node = node
         self.notes = []
         self.node = node
         self.notes = []

+        self.repeats = []

         self._parseMusic()
         self._parseMusic()

+        self.verses = [[]]
+        self.chorus = []
+        if autoDetectChorus :
+            self._findChorus()
+        self._findVersesLoops()

     
     def _parseMusic(self) :
         divisions = 0
     
     def _parseMusic(self) :
         divisions = 0

-        
+        previous = None
+

         for measureNode in self.node.getElementsByTagName('measure') :
         for measureNode in self.node.getElementsByTagName('measure') :

+            measureNotes = []
+            
+            # iteration sur les notes
+            # divisions de la noire

             divisions = int(_getNodeValue(measureNode, 'attributes/divisions', divisions))
             divisions = int(_getNodeValue(measureNode, 'attributes/divisions', divisions))

-            next = previous = None
-            for i, noteNode in enumerate(measureNode.getElementsByTagName('note')) :
+            for noteNode in measureNode.getElementsByTagName('note') :

                 note = Note(noteNode, divisions, previous)
                 note = Note(noteNode, divisions, previous)

-                self.notes.append(note)
-                try :
-                    self.notes[i-1].next = note
-                except IndexError:
-                    pass
+                if not note.isRest :
+                    measureNotes.append(note)
+                    if previous :
+                        previous.next = note
+                else :
+                    previous.addDuration(note)
+                    continue

                 previous = note
                 previous = note

+            self.notes.extend(measureNotes)
+            
+            # barres de reprises
+            try :
+                barlineNode = measureNode.getElementsByTagName('barline')[0]
+            except IndexError :
+                continue
+            
+            barline = Barline(barlineNode, measureNotes)
+            if barline.repeat :
+                self.repeats.append(barline)
+
+    def _findChorus(self):
+        """ le refrain correspond aux notes pour lesquelles
+            il n'existe q'une seule syllable attachée.
+        """
+        start = stop = None
+        for i, note in enumerate(self.notes) :
+            ll = len(note.lyrics)
+            if start is None and ll == 1 :
+                start = i
+            elif start is not None and ll > 1 :
+                stop = i
+                break
+        self.chorus = self.notes[start:stop]

     
     

-    def pprint(self) :
-        for note in self.notes :
-            print note.name, note.midi, note.duration, note.lyrics
-                
-                
+    def _findVersesLoops(self) :
+        "recherche des couplets / boucles"
+        verse = self.verses[0]
+        for note in self.notes[:-1] :
+            verse.append(note)
+            ll = len(note.lyrics)
+            nll = len(note.next.lyrics)
+            if ll != nll :
+                verse = []
+                self.verses.append(verse)
+        verse.append(self.notes[-1])
+        
+    
+    def iterNotes(self) :
+        "exécution de la chanson avec l'alternance couplets / refrains"
+        for verse in cycle(self.verses) :
+            print "---partie---"
+            repeats = len(verse[0].lyrics)
+            if repeats > 1 :
+                for i in range(repeats) :
+                    # couplet
+                    print "---couplet%d---" % i
+                    for note in verse :
+                        yield note, i
+                    # refrain
+                    print "---refrain---"
+                    for note in self.chorus :
+                        yield note, 0
+            else :
+                for note in verse :
+                    yield note, 0

         
         

+    def pprint(self) :
+        for note, verseIndex in self.iterNotes() :
+            print note, note.lyrics[verseIndex]
+
+
+    def assignNotesFromMidiNoteNumbers(self):
+        # TODO faire le mapping bande hauteur midi
+        for i in range(len(self.midiNoteNumbers)):
+            noteInExtendedScale = 0
+            while self.midiNoteNumbers[i] > self.scale[noteInExtendedScale] and noteInExtendedScale < len(self.scale)-1:
+                noteInExtendedScale += 1
+            if self.midiNoteNumbers[i]<self.scale[noteInExtendedScale]:
+                noteInExtendedScale -= 1
+            self.notes.append(noteInExtendedScale)
+
+
+class Barline(object) :
+
+    def __init__(self, node, measureNotes) :
+        self.node = node
+        location = self.location = node.getAttribute('location') or 'right'
+        try :
+            repeatN = node.getElementsByTagName('repeat')[0]
+            repeat = {'direction' : repeatN.getAttribute('direction'),
+                      'times' : int(repeatN.getAttribute('times') or 1)}
+            if location == 'left' :
+                repeat['note'] = measureNotes[0]
+            elif location == 'right' :
+                repeat['note'] = measureNotes[-1]
+            else :
+                raise ValueError(location)
+            self.repeat = repeat
+        except IndexError :
+            self.repeat = None
+    
+    def __str__(self)  :
+        if self.repeat :
+            if self.location == 'left' :
+                return '|:'
+            elif self.location == 'right' :
+                return ':|'
+        return '|'
+
+    __repr__ = __str__

         
 
 class Note(object) :
         
 
 class Note(object) :

+    scale = [55, 57, 59, 60, 62, 64, 65, 67, 69, 71, 72]
+    

     def __init__(self, node, divisions, previous) :
         self.node = node
     def __init__(self, node, divisions, previous) :
         self.node = node

-        self.step = _getNodeValue(node, 'pitch/step')
-        self.octave = int(_getNodeValue(node, 'pitch/octave'))
-        self.alter = int(_getNodeValue(node, 'pitch/alter', 0))
+        self.isRest = False
+        self.step = _getNodeValue(node, 'pitch/step', None)
+        if self.step is not None :
+            self.octave = int(_getNodeValue(node, 'pitch/octave'))
+            self.alter = int(_getNodeValue(node, 'pitch/alter', 0))
+        elif self.node.getElementsByTagName('rest') :
+            self.isRest = True
+        else :
+            NotImplementedError(self.node.toxml('utf-8'))
+            

         self._duration = float(_getNodeValue(node, 'duration'))
         self.lyrics = []
         for ly in node.getElementsByTagName('lyric') :
         self._duration = float(_getNodeValue(node, 'duration'))
         self.lyrics = []
         for ly in node.getElementsByTagName('lyric') :


@@ -67,6 +197,16 @@ class Note(object) :
         self.previous = previous
         self.next = None
     
         self.previous = previous
         self.next = None
     

+    def __str__(self) :
+        return (u'%5s %2s %2d %4s' % (self.nom, self.name, self.midi, round(self.duration, 2))).encode('utf-8')
+    
+    def __repr__(self) :
+        return self.name.encode('utf-8')
+    
+    def addDuration(self, note) :
+        self._duration = self.duration + note.duration
+        self.divisions = 1
+    

     @property
     def midi(self) :
         mid = DIATO_SCALE[self.step]
     @property
     def midi(self) :
         mid = DIATO_SCALE[self.step]


@@ -88,15 +228,41 @@ class Note(object) :
         name = '%s%s' % (name, abs(self.alter) * alterext)
         return name
     
         name = '%s%s' % (name, abs(self.alter) * alterext)
         return name
     

+    @property
+    def nom(self) :
+        name = FR_NOTES[self.step]
+        if self.alter < 0 :
+            alterext = 'b'
+        else :
+            alterext = '#'
+        name = '%s%s' % (name, abs(self.alter) * alterext)
+        return name
+    
+    @property
+    def column(self):
+        return self.scale.index(self.midi)
+    

 
 class Lyric(object) :
 
 class Lyric(object) :

+    
+    _syllabicModifiers = {
+        'single' : '%s',
+        'begin'  : '%s -',
+        'middle' : '- %s -',
+        'end'    : '- %s'
+        }
+    

     def __init__(self, node) :
         self.node = node
         self.syllabic = _getNodeValue(node, 'syllabic', 'single')
         self.text = _getNodeValue(node, 'text')
     
     def __init__(self, node) :
         self.node = node
         self.syllabic = _getNodeValue(node, 'syllabic', 'single')
         self.text = _getNodeValue(node, 'text')
     

+    def syllabus(self, encoding='utf-8'):
+        text = self._syllabicModifiers[self.syllabic] % self.text
+        return text.encode(encoding)
+    

     def __str__(self) :
     def __str__(self) :

-        return self.text.encode('utf-8')
+        return self.syllabus()

     __repr__  = __str__
         
         
     __repr__  = __str__
         
         


@@ -113,7 +279,7 @@ def _getNodeValue(node, path, default=_marker) :
         else :
             return default
 
         else :
             return default
 

-def musicXml2Song(input, output, partIndex=0, printNotes=False) :
+def musicXml2Song(input, partIndex=0, printNotes=False) :

     if isinstance(input, StringTypes) :
         input = open(input, 'r')
     
     if isinstance(input, StringTypes) :
         input = open(input, 'r')
     


@@ -130,6 +296,9 @@ def musicXml2Song(input, output, partIndex=0, printNotes=False) :
     
     if printNotes :
         part.pprint()
     
     if printNotes :
         part.pprint()

+
+    return part
+

     
     # divisions de la noire
 #    divisions = 0
     
     # divisions de la noire
 #    divisions = 0


@@ -166,10 +335,10 @@ def main() :
     
     options, args = op.parse_args()
     
     
     options, args = op.parse_args()
     

-    if len(args) != 2 :
+    if len(args) != 1 :

         raise SystemExit(op.format_help())
     
         raise SystemExit(op.format_help())
     

-    musicXml2Song(args[0], args[1], partIndex=options.partIndex, printNotes=options.printNotes)
+    musicXml2Song(args[0], partIndex=options.partIndex, printNotes=options.printNotes)