Changeset 18744 for lang/python/mid2flmml/trunk

Timestamp:

09/03/08 19:46:38 (4 months ago)

Author:

tasuku

Message:

top to filename...

Files:

• lang/python/mid2flmml/trunk/mid2flmml.py (modified) (4 diffs)

lang/python/mid2flmml/trunk/mid2flmml.py

@@ +1 @@
+FILE_NAME = 'tekito.mid'
+
 import midi
 
 notes = ['C', 'C+', 'D', 'D+', 'E', 'F', 'F+', 'G', 'G+', 'A', 'A+', 'B']
 globals = []
-channels = [[] for d in 16 * [None]]
+channels = [[] for d in 17 * [None]]
 channel_stats = [{
   'note': None,
   'note_on_time': None,
+  'note_off_time': None,
   'velocity': None,
   'octave': None,
-} for d in 16 * [None]]
+} for d in 17 * [None]]
 
 def pitch_to_octave_and_note(pitch):
   return [pitch / 12, notes[pitch % 12]]
 
-def add_octave_and_note(event, octave, pitch):
+def add_length(e, note, from_time, tpq):
+  if not note:
+    raise 'note is none'
+  td = e.time - from_time
+  if td == 0:
+    if note != 'R':
+      raise 'no time diff'
+    return
+  while td > tpq:
+    channels[e.channel].append(note)
+    td -= tpq
+    if td > 0:
+      channels[e.channel].append('&')
+  if td > 0:
+    channels[e.channel].append(note)
+    channels[e.channel].append(str(int(((tpq / td) * 4))))
+
+def add_octave_and_note(event, octave, pitch, tpq):
+  if channel_stats[e.channel]['note_on_time']:
+    print 'WARNING!: detect waon.'
+    return
+  cmd = ''
+  if channel_stats[e.channel]['note_off_time']:
+    add_length(e, 'R', channel_stats[e.channel]['note_off_time'], tpq)
   if channel_stats[e.channel]['velocity'] != e.velocity:
     channels[e.channel].append('@V%d' % e.velocity)
+    channel_stats[e.channel]['velocity'] = e.velocity
   octave, note = pitch_to_octave_and_note(e.pitch)
   if channel_stats[e.channel]['octave']:
@@ -22 +49 @@
   else:
     od = None
+  channel_stats[e.channel]['octave'] = octave
 
   if od == 1:
@@ -28 +56 @@
     pass
   elif od == -1:
-    channels[e.channel].append('<')
+    channels[e.channel].append('>')
   else:
     channels[e.channel].append('O%d' % octave)
-  channels[e.channel].append(note)
   channel_stats[e.channel]['note'] = note
   channel_stats[e.channel]['note_on_time'] = e.time
+  channel_stats[e.channel]['note_off_time'] = None
+
+def note_off(e, tpq):
+  add_length(e, channel_stats[e.channel]['note'], channel_stats[e.channel]['note_on_time'], tpq)
+  channel_stats[e.channel]['note'] = None
+  channel_stats[e.channel]['note_on_time'] = None
+  channel_stats[e.channel]['note_off_time'] = e.time
 
 mid = midi.MidiFile()
-mid.open('dora_h.mid')
+mid.open(FILE_NAME)
 mid.read()
 for track in mid.tracks:
@@ -47 +81 @@
       pass
     elif e.type == 'SET_TEMPO':
-      secPerQuarterNote = 1000000.0 / midi.getNumber(e.data, 3)[0]
+      secPerQuarterNote = midi.getNumber(e.data, 3)[0] / 1000000.0
       if mid.ticksPerQuarterNote:
-        tpq = mid.ticksPerQuarterNote
+        print "tpq: %d" % mid.ticksPerQuarterNote
+        tpq = float(mid.ticksPerQuarterNote)
       else:
-        tpq = mid.ticksPerSecond / secPerQuarterNote
+        print "tps: %d" % mid.ticksPerSecond
+        tpq = mid.ticksPerSecond * secPerQuarterNote
       tempo = 60.0 / secPerQuarterNote
+      print "tempo: %d" % tempo
       globals.append('T%d' % tempo)
     elif e.type == 'PROGRAM_CHANGE':
-      globals.append('/* program change ' + str(e.data) + ' */')
+      # TODO: http://noike.info/~kenzi/cgi-bin/mml2mp3/doc/FlMML_to_mml2mid.html
+      # globals.append('/* program change ' + str(e.data) + ' */')
+      pass
     elif e.type == 'CONTROLLER_CHANGE':
-      # TODO: NOTE_ON tochu change taiou
+      # TODO: like PITCH_BEND
       pass
     elif e.type == 'PITCH_BEND':
+      if channel_stats[e.channel]['note_on_time']:
+        if channel_stats[e.channel]['note_on_time'] != e.time:
+          note_off(e, tpq)
+          channels[e.channel].append('&')
       octave, note = pitch_to_octave_and_note(e.pitch)
-      add_octave_and_note(e, octave, note)
+      add_octave_and_note(e, octave, note, tpq)
     elif e.type == 'NOTE_ON':
       octave, note = pitch_to_octave_and_note(e.pitch)
-      add_octave_and_note(e, octave, note)
+      add_octave_and_note(e, octave, note, tpq)
     elif e.type == 'NOTE_OFF':
-      td = e.time - channel_stats[e.channel]['note_on_time']
-      while td > tpq:
-        channels[e.channel].append('&')
-        channels[e.channel].append(channes_stats[e.channel]['note'])
-        td -= tpq
-      if td > 0:
-        channels[e.channel].append(str((tpq / td) * 4))
+      note_off(e, tpq)
     elif e.type == 'END_OF_TRACK':
       pass