#!@TARGET_PYTHON@
#
# midi2ly.py -- LilyPond midi import script
-#
-# source file of the GNU LilyPond music typesetter
+
+# This file is part of LilyPond, the GNU music typesetter.
+#
+# Copyright (C) 1998--2015 Han-Wen Nienhuys <hanwen@xs4all.nl>
+# Jan Nieuwenhuizen <janneke@gnu.org>
+#
+# LilyPond is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
#
-# (c) 1998--2008 Han-Wen Nienhuys <hanwen@xs4all.nl>
-# Jan Nieuwenhuizen <janneke@gnu.org>
+# LilyPond is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with LilyPond. If not, see <http://www.gnu.org/licenses/>.
'''
TODO:
- * test on weird and unquantised midi input (lily-devel)
- * update doc and manpage
-
- * simply insert clef changes whenever too many ledger lines
- [to avoid tex capacity exceeded]
- * do not ever quant skips
- * better lyrics handling
- * [see if it is feasible to] move ly-classes to library for use in
- other converters, while leaving midi specific stuff here
'''
import os
@relocate-preamble@
"""
-import midi
import lilylib as ly
global _;_=ly._
clocks_per_1 = 1536
clocks_per_4 = 0
-time = 0
+time = None
reference_note = 0
start_quant_clocks = 0
duration_quant_clocks = 0
allowed_tuplet_clocks = []
-
+bar_max = 0
################################################################
program_name = sys.argv[0]
program_version = '@TOPLEVEL_VERSION@'
+authors = ('Jan Nieuwenhuizen <janneke@gnu.org>',
+ 'Han-Wen Nienhuys <hanwen@xs4all.nl>')
+
errorport = sys.stderr
def identify ():
def warranty ():
identify ()
ly.encoded_write (sys.stdout, '''
-Copyright (c) %s by
+%s
- Han-Wen Nienhuys
- Jan Nieuwenhuizen
+ %s
%s
%s
-''' ( '2001--2006',
- _('Distributed under terms of the GNU General Public License.'),
- _('It comes with NO WARRANTY.')))
-
+''' % ( _ ('Copyright (c) %s by') % '1998--2015',
+ '\n '.join (authors),
+ _ ('Distributed under terms of the GNU General Public License.'),
+ _ ('It comes with NO WARRANTY.')))
def progress (s):
ly.encoded_write (errorport, s + '\n')
def warning (s):
progress (_ ("warning: ") + s)
-
+
def error (s):
progress (_ ("error: ") + s)
raise Exception (_ ("Exiting... "))
+def debug (s):
+ if global_options.debug:
+ progress ("debug: " + s)
+
def system (cmd, ignore_error = 0):
return ly.system (cmd, ignore_error=ignore_error)
allowed_durs = (1, 2, 4, 8, 16, 32, 64, 128)
def __init__ (self, clocks):
self.clocks = clocks
- if clocks <= 0:
- self.clocks = duration_quant_clocks
(self.dur, self.num, self.den) = self.dur_num_den (clocks)
-
+
def dur_num_den (self, clocks):
for i in range (len (allowed_tuplet_clocks)):
if clocks == allowed_tuplet_clocks[i]:
s = '%d*%d' % (self.dur, self.num)
else:
s = '%d*%d/%d' % (self.dur, self.num, self.den)
-
+
global reference_note
reference_note.duration = self
n = self.names[(self.pitch) % 12]
a = self.alterations[(self.pitch) % 12]
- if a and global_options.key.flats:
+ key = global_options.key
+ if not key:
+ key = Key (0, 0, 0)
+
+ if a and key.flats:
a = - self.alterations[(self.pitch) % 12]
n = (n - a) % 7
o = self.pitch / 12 - 4
- key = global_options.key
if key.minor:
# as -> gis
if (key.sharps == 0 and key.flats == 0
n = 6; a = 1; o = o - 1
return (o, n, a)
-
+
def __repr__ (self):
s = chr ((self.notename + 2) % 7 + ord ('a'))
- return 'Note(%s %s)' % (s, self.duration.dump())
+ return 'Note(%s %s)' % (s, self.duration.dump ())
- def dump (self, dump_dur = 1):
+ def dump (self, dump_dur=True):
global reference_note
s = chr ((self.notename + 2) % 7 + ord ('a'))
s = s + self.alteration_names[self.alteration + 2]
else:
delta = self.pitch - reference_note.pitch
commas = sign (delta) * (abs (delta) / 12)
- if ((sign (delta) \
- * (self.notename - reference_note.notename) + 7) \
- % 7 >= 4) \
- or ((self.notename == reference_note.notename) \
- and (abs (delta) > 4) and (abs (delta) < 12)):
+ if (((sign (delta)
+ * (self.notename - reference_note.notename) + 7)
+ % 7 >= 4)
+ or ((self.notename == reference_note.notename)
+ and (abs (delta) > 4) and (abs (delta) < 12))):
commas = commas + sign (delta)
-
+
if commas > 0:
s = s + "'" * commas
elif commas < 0:
s = s + "," * -commas
- ## FIXME: compile fix --jcn
- if dump_dur and (global_options.explicit_durations \
- or self.duration.compare (reference_note.duration)):
+ if (dump_dur
+ and (self.duration.compare (reference_note.duration)
+ or global_options.explicit_durations)):
s = s + self.duration.dump ()
+ # Chords need to handle their reference duration themselves
+
reference_note = self
-
+
# TODO: move space
return s + ' '
def __repr__ (self):
return 'Time(%d/%d)' % (self.num, self.den)
-
+
def dump (self):
global time
time = self
def __repr__ (self):
return 'Tempo(%d)' % self.bpm ()
-
+
def bpm (self):
return 4 * 60 / self.seconds_per_1
-
+
def dump (self):
- return '\n ' + '\\tempo 4 = %d ' % (self.bpm()) + '\n '
+ return '\n ' + '\\tempo 4 = %d ' % (self.bpm ()) + '\n '
class Clef:
clefs = ('"bass_8"', 'bass', 'violin', '"violin^8"')
def __repr__ (self):
return 'Clef(%s)' % self.clefs[self.type]
-
+
def dump (self):
return '\n \\clef %s\n ' % self.clefs[self.type]
k = (ord ('cfbeadg'[self.flats % 7]) - ord ('a') - 2 -2 * self.minor + 7) % 7
else:
k = (ord ('cgdaebf'[self.sharps % 7]) - ord ('a') - 2 -2 * self.minor + 7) % 7
-
+
if not self.minor:
name = chr ((k + 2) % 7 + ord ('a'))
else:
'INSTRUMENT_NAME',
'LYRIC',
'MARKER',
- 'CUE_POINT',)
-
+ 'CUE_POINT',
+ 'PROGRAM_NAME',
+ 'DEVICE_NAME', )
+
+ @staticmethod
+ def _text_only(chr):
+ if ((' ' <= chr <= '~') or chr in ['\n','\r']):
+ return chr
+ else:
+ return '~'
+
def __init__ (self, type, text):
self.clocks = 0
self.type = type
- self.text = text
+ self.text =''.join(map(self._text_only, text))
def dump (self):
# urg, we should be sure that we're in a lyrics staff
+ s = ''
if self.type == midi.LYRIC:
s = '"%s"' % self.text
d = Duration (self.clocks)
- if global_options.explicit_durations \
- or d.compare (reference_note.duration):
+ if (global_options.explicit_durations
+ or d.compare (reference_note.duration)):
s = s + Duration (self.clocks).dump ()
s = s + ' '
- else:
+ elif (self.text.strip ()
+ and self.type == midi.SEQUENCE_TRACK_NAME
+ and not self.text == 'control track'
+ and not self.track.lyrics_p_):
+ text = self.text.replace ('(MIDI)', '').strip ()
+ if text:
+ s = '\n \\set Staff.instrumentName = "%(text)s"\n ' % locals ()
+ elif self.text.strip ():
s = '\n % [' + self.text_types[self.type] + '] ' + self.text + '\n '
return s
def __repr__ (self):
return 'Text(%d=%s)' % (self.type, self.text)
+def get_voice (channel, music):
+ debug ('channel: ' + str (channel) + '\n')
+ return unthread_notes (music)
+
+class Channel:
+ def __init__ (self, number):
+ self.number = number
+ self.events = []
+ self.music = None
+ def add (self, event):
+ self.events.append (event)
+ def get_voice (self):
+ if not self.music:
+ self.music = self.parse ()
+ return get_voice (self.number, self.music)
+ def parse (self):
+ pitches = {}
+ notes = []
+ music = []
+ last_lyric = 0
+ last_time = 0
+ for e in self.events:
+ t = e[0]
+
+ if start_quant_clocks:
+ t = quantise_clocks (t, start_quant_clocks)
+
+ if (e[1][0] == midi.NOTE_OFF
+ or (e[1][0] == midi.NOTE_ON and e[1][2] == 0)):
+ debug ('%d: NOTE OFF: %s' % (t, e[1][1]))
+ if not e[1][2]:
+ debug (' ...treated as OFF')
+ end_note (pitches, notes, t, e[1][1])
+ elif e[1][0] == midi.NOTE_ON:
+ if not pitches.has_key (e[1][1]):
+ debug ('%d: NOTE ON: %s' % (t, e[1][1]))
+ pitches[e[1][1]] = (t, e[1][2])
+ else:
+ debug ('...ignored')
+
+ # all include ALL_NOTES_OFF
+ elif (e[1][0] >= midi.ALL_SOUND_OFF
+ and e[1][0] <= midi.POLY_MODE_ON):
+ for i in pitches:
+ end_note (pitches, notes, t, i)
+
+ elif e[1][0] == midi.META_EVENT:
+ if e[1][1] == midi.END_OF_TRACK:
+ for i in pitches:
+ end_note (pitches, notes, t, i)
+ break
+
+ elif e[1][1] == midi.SET_TEMPO:
+ (u0, u1, u2) = map (ord, e[1][2])
+ us_per_4 = u2 + 256 * (u1 + 256 * u0)
+ seconds_per_1 = us_per_4 * 4 / 1e6
+ music.append ((t, Tempo (seconds_per_1)))
+ elif e[1][1] == midi.TIME_SIGNATURE:
+ (num, dur, clocks4, count32) = map (ord, e[1][2])
+ den = 2 ** dur
+ music.append ((t, Time (num, den)))
+ elif e[1][1] == midi.KEY_SIGNATURE:
+ (alterations, minor) = map (ord, e[1][2])
+ sharps = 0
+ flats = 0
+ if alterations < 127:
+ sharps = alterations
+ else:
+ flats = 256 - alterations
+
+ k = Key (sharps, flats, minor)
+ if not t and global_options.key:
+ # At t == 0, a set --key overrides us
+ k = global_options.key
+ music.append ((t, k))
+
+ # ugh, must set key while parsing
+ # because Note init uses key
+ # Better do Note.calc () at dump time?
+ global_options.key = k
+
+ elif (e[1][1] == midi.LYRIC
+ or (global_options.text_lyrics
+ and e[1][1] == midi.TEXT_EVENT)):
+ self.lyrics_p_ = True
+ if last_lyric:
+ last_lyric.clocks = t - last_time
+ music.append ((last_time, last_lyric))
+ last_time = t
+ last_lyric = Text (midi.LYRIC, e[1][2])
+
+ elif (e[1][1] >= midi.SEQUENCE_NUMBER
+ and e[1][1] <= midi.CUE_POINT):
+ text = Text (e[1][1], e[1][2])
+ text.track = self
+ music.append ((t, text))
+ if (text.type == midi.SEQUENCE_TRACK_NAME):
+ self.name = text.text
+ else:
+ if global_options.verbose:
+ sys.stderr.write ("SKIP: %s\n" % `e`)
+ else:
+ if global_options.verbose:
+ sys.stderr.write ("SKIP: %s\n" % `e`)
-def split_track (track):
- chs = {}
- for i in range(16):
- chs[i] = []
-
- for e in track:
+ if last_lyric:
+ # last_lyric.clocks = t - last_time
+ # hmm
+ last_lyric.clocks = clocks_per_4
+ music.append ((last_time, last_lyric))
+ last_lyric = 0
+
+ i = 0
+ while len (notes):
+ if i < len (music) and notes[0][0] >= music[i][0]:
+ i = i + 1
+ else:
+ music.insert (i, notes[0])
+ del notes[0]
+ return music
+
+class Track (Channel):
+ def __init__ (self):
+ Channel.__init__ (self, None)
+ self.name = None
+ self.channels = {}
+ self.lyrics_p_ = False
+ def _add (self, event):
+ self.events.append (event)
+ def add (self, event, channel=None):
+ if channel == None:
+ self._add (event)
+ else:
+ self.channels[channel] = self.channels.get (channel, Channel (channel))
+ self.channels[channel].add (event)
+ def get_voices (self):
+ return ([self.get_voice ()]
+ + [self.channels[k].get_voice ()
+ for k in sorted (self.channels.keys ())])
+
+def create_track (events):
+ track = Track ()
+ for e in events:
data = list (e[1])
if data[0] > 0x7f and data[0] < 0xf0:
- c = data[0] & 0x0f
+ channel = data[0] & 0x0f
e = (e[0], tuple ([data[0] & 0xf0] + data[1:]))
- chs[c].append (e)
+ track.add (e, channel)
else:
- chs[0].append (e)
-
- for i in range (16):
- if chs[i] == []:
- del chs[i]
-
- threads = []
- for v in chs.values ():
- events = events_on_channel (v)
- thread = unthread_notes (events)
- if len (thread):
- threads.append (thread)
- return threads
-
+ track.add (e)
+ return track
def quantise_clocks (clocks, quant):
q = int (clocks / quant) * quant
(lt, vel) = pitches[e]
del pitches[e]
- i = len (notes) - 1
+ i = len (notes) - 1
while i > 0:
if notes[i][0] > lt:
i = i -1
except KeyError:
pass
-def events_on_channel (channel):
- pitches = {}
-
- notes = []
- events = []
- last_lyric = 0
- last_time = 0
- for e in channel:
- t = e[0]
-
- if start_quant_clocks:
- t = quantise_clocks (t, start_quant_clocks)
-
-
- if e[1][0] == midi.NOTE_OFF \
- or (e[1][0] == midi.NOTE_ON and e[1][2] == 0):
- end_note (pitches, notes, t, e[1][1])
-
- elif e[1][0] == midi.NOTE_ON:
- if not pitches.has_key (e[1][1]):
- pitches[e[1][1]] = (t, e[1][2])
-
- # all include ALL_NOTES_OFF
- elif e[1][0] >= midi.ALL_SOUND_OFF \
- and e[1][0] <= midi.POLY_MODE_ON:
- for i in pitches:
- end_note (pitches, notes, t, i)
-
- elif e[1][0] == midi.META_EVENT:
- if e[1][1] == midi.END_OF_TRACK:
- for i in pitches:
- end_note (pitches, notes, t, i)
- break
-
- elif e[1][1] == midi.SET_TEMPO:
- (u0, u1, u2) = map (ord, e[1][2])
- us_per_4 = u2 + 256 * (u1 + 256 * u0)
- seconds_per_1 = us_per_4 * 4 / 1e6
- events.append ((t, Tempo (seconds_per_1)))
- elif e[1][1] == midi.TIME_SIGNATURE:
- (num, dur, clocks4, count32) = map (ord, e[1][2])
- den = 2 ** dur
- events.append ((t, Time (num, den)))
- elif e[1][1] == midi.KEY_SIGNATURE:
- (alterations, minor) = map (ord, e[1][2])
- sharps = 0
- flats = 0
- if alterations < 127:
- sharps = alterations
- else:
- flats = 256 - alterations
-
- k = Key (sharps, flats, minor)
- events.append ((t, k))
-
- # ugh, must set key while parsing
- # because Note init uses key
- # Better do Note.calc () at dump time?
- global_options.key = k
-
- elif e[1][1] == midi.LYRIC \
- or (global_options.text_lyrics and e[1][1] == midi.TEXT_EVENT):
- if last_lyric:
- last_lyric.clocks = t - last_time
- events.append ((last_time, last_lyric))
- last_time = t
- last_lyric = Text (midi.LYRIC, e[1][2])
-
- elif e[1][1] >= midi.SEQUENCE_NUMBER \
- and e[1][1] <= midi.CUE_POINT:
- events.append ((t, Text (e[1][1], e[1][2])))
- else:
- if global_options.verbose:
- sys.stderr.write ("SKIP: %s\n" % `e`)
- pass
- else:
- if global_options.verbose:
- sys.stderr.write ("SKIP: %s\n" % `e`)
- pass
-
- if last_lyric:
- # last_lyric.clocks = t - last_time
- # hmm
- last_lyric.clocks = clocks_per_4
- events.append ((last_time, last_lyric))
- last_lyric = 0
-
- i = 0
- while len (notes):
- if i < len (events) and notes[0][0] >= events[i][0]:
- i = i + 1
- else:
- events.insert (i, notes[0])
- del notes[0]
- return events
-
def unthread_notes (channel):
threads = []
while channel:
todo = []
for e in channel:
t = e[0]
- if e[1].__class__ == Note \
- and ((t == start_busy_t \
- and e[1].clocks + t == end_busy_t) \
- or t >= end_busy_t):
+ if (e[1].__class__ == Note
+ and ((t == start_busy_t
+ and e[1].clocks + t == end_busy_t)
+ or t >= end_busy_t)):
thread.append (e)
start_busy_t = t
end_busy_t = t + e[1].clocks
- elif e[1].__class__ == Time \
- or e[1].__class__ == Key \
- or e[1].__class__ == Text \
- or e[1].__class__ == Tempo:
+ elif (e[1].__class__ == Time
+ or e[1].__class__ == Key
+ or e[1].__class__ == Text
+ or e[1].__class__ == Tempo):
thread.append (e)
else:
todo.append (e)
if b == 0:
return a
c = a
- while c:
+ while c:
c = a % b
a = b
b = c
return a
-
+
def dump_skip (skip, clocks):
return skip + Duration (clocks).dump () + ' '
s = s + dump (notes[0])
elif len (notes) > 1:
global reference_note
+ reference_dur = reference_note.duration
s = s + '<'
- s = s + notes[0].dump (dump_dur = 0)
+ s = s + notes[0].dump (dump_dur=False)
r = reference_note
for i in notes[1:]:
- s = s + i.dump (dump_dur = 0 )
+ s = s + i.dump (dump_dur=False)
s = s + '>'
-
- s = s + notes[0].duration.dump() + ' '
+ if (r.duration.compare (reference_dur)
+ or global_options.explicit_durations):
+ s = s + r.duration.dump ()
+ s = s + ' '
reference_note = r
return s
bar_t = time.bar_clocks ()
if t - last_bar_t >= bar_t:
bar_count = bar_count + (t - last_bar_t) / bar_t
-
+
if t - last_bar_t == bar_t:
- s = '|\n %% %d\n ' % bar_count
+ s = '\n | %% %(bar_count)d\n ' % locals ()
last_bar_t = t
else:
# urg, this will barf at meter changes
last_bar_t = last_bar_t + (t - last_bar_t) / bar_t * bar_t
-
+
return (s, last_bar_t, bar_count)
-
-def dump_channel (thread, skip):
- global reference_note, time
- global_options.key = Key (0, 0, 0)
- time = Time (4, 4)
- # urg LilyPond doesn't start at c4, but
- # remembers from previous tracks!
- # reference_note = Note (clocks_per_4, 4*12, 0)
- reference_note = Note (0, 4*12, 0)
+def dump_voice (thread, skip):
+ global reference_note, time
+ ref = Note (0, 4*12, 0)
+ if not reference_note:
+ reference_note = ref
+ else:
+ ref.duration = reference_note.duration
+ reference_note = ref
last_e = None
chs = []
ch = []
else:
if ch:
chs.append ((last_e[0], ch))
-
+
ch = [e[1]]
-
+
last_e = e
if ch:
last_t = 0
last_bar_t = 0
bar_count = 1
-
+
lines = ['']
- for ch in chs:
+ for ch in chs:
t = ch[0]
i = lines[-1].rfind ('\n') + 1
lines.append ('')
if t - last_t > 0:
- lines[-1] = lines[-1] + dump_skip (skip, t-last_t)
+ d = t - last_t
+ if bar_max and t > time.bar_clocks () * bar_max:
+ d = time.bar_clocks () * bar_max - last_t
+ lines[-1] = lines[-1] + dump_skip (skip, d)
elif t - last_t < 0:
errorport.write ('BUG: time skew')
(s, last_bar_t, bar_count) = dump_bar_line (last_bar_t,
t, bar_count)
+
+ if bar_max and bar_count > bar_max:
+ break
+
lines[-1] = lines[-1] + s
-
lines[-1] = lines[-1] + dump_chord (ch[1])
clocks = 0
for i in ch[1]:
if i.clocks > clocks:
clocks = i.clocks
-
+
last_t = t + clocks
-
+
(s, last_bar_t, bar_count) = dump_bar_line (last_bar_t,
- last_t, bar_count)
+ last_t, bar_count)
lines[-1] = lines[-1] + s
return '\n '.join (lines) + '\n'
-def track_name (i):
- return 'track%c' % (i + ord ('A'))
-
-def channel_name (i):
- return 'channel%c' % (i + ord ('A'))
+def number2ascii (i):
+ s = ''
+ i += 1
+ while i > 0:
+ m = (i - 1) % 26
+ s = '%c' % (m + ord ('A')) + s
+ i = (i - m)/26
+ return s
-def dump_track (channels, n):
+def get_track_name (i):
+ return 'track' + number2ascii (i)
+
+def get_channel_name (i):
+ return 'channel' + number2ascii (i)
+
+def get_voice_name (i, zero_too_p=False):
+ if i or zero_too_p:
+ return 'voice' + number2ascii (i)
+ return ''
+
+def lst_append (lst, x):
+ lst.append (x)
+ return lst
+
+def get_voice_layout (average_pitch):
+ d = {}
+ for i in range (len (average_pitch)):
+ d[average_pitch[i]] = lst_append (d.get (average_pitch[i], []), i)
+ s = list (reversed (sorted (average_pitch)))
+ non_empty = len (filter (lambda x: x, s))
+ names = ['One', 'Two']
+ if non_empty > 2:
+ names = ['One', 'Three', 'Four', 'Two']
+ layout = map (lambda x: '', range (len (average_pitch)))
+ for i, n in zip (s, names):
+ if i:
+ v = d[i]
+ if type (v) == list:
+ d[i] = v[1:]
+ v = v[0]
+ layout[v] = n
+ return layout
+
+def dump_track (track, n):
s = '\n'
- track = track_name (n)
- clef = guess_clef (channels)
-
- for i in range (len (channels)):
- channel = channel_name (i)
- item = thread_first_item (channels[i])
-
- if item and item.__class__ == Note:
- skip = 's'
- s = s + '%s = ' % (track + channel)
- if not global_options.absolute_pitches:
- s = s + '\\relative c '
- elif item and item.__class__ == Text:
- skip = '" "'
- s = s + '%s = \\lyricmode ' % (track + channel)
- else:
- skip = '\\skip '
- s = s + '%s = ' % (track + channel)
- s = s + '{\n'
- s = s + ' ' + dump_channel (channels[i][0], skip)
- s = s + '}\n\n'
+ track_name = get_track_name (n)
+
+ average_pitch = track_average_pitch (track)
+ voices = len (filter (lambda x: x, average_pitch[1:]))
+ clef = get_best_clef (average_pitch[0])
+
+ c = 0
+ vv = 0
+ for channel in track:
+ v = 0
+ channel_name = get_channel_name (c)
+ c += 1
+ for voice in channel:
+ voice_name = get_voice_name (v)
+ voice_id = track_name + channel_name + voice_name
+ item = voice_first_item (voice)
+
+ if item and item.__class__ == Note:
+ skip = 'r'
+ if global_options.skip:
+ skip = 's'
+ s += '%(voice_id)s = ' % locals ()
+ if not global_options.absolute_pitches:
+ s += '\\relative c '
+ elif item and item.__class__ == Text:
+ skip = '" "'
+ s += '%(voice_id)s = \\lyricmode ' % locals ()
+ else:
+ skip = '\\skip '
+ s += '%(voice_id)s = ' % locals ()
+ s += '{\n'
+ if not n and not vv and global_options.key:
+ s += global_options.key.dump ()
+ if average_pitch[vv+1] and voices > 1:
+ vl = get_voice_layout (average_pitch[1:])[vv]
+ if vl:
+ s += ' \\voice' + vl + '\n'
+ else:
+ if not global_options.quiet:
+ warning (_ ('found more than 5 voices on a staff, expect bad output'))
+ s += ' ' + dump_voice (voice, skip)
+ s += '}\n\n'
+ v += 1
+ vv += 1
- s = s + '%s = <<\n' % track
+ s += '%(track_name)s = <<\n' % locals ()
if clef.type != 2:
- s = s + clef.dump () + '\n'
-
- for i in range (len (channels)):
- channel = channel_name (i)
- item = thread_first_item (channels[i])
- if item and item.__class__ == Text:
- s = s + ' \\context Lyrics = %s \\%s\n' % (channel,
- track + channel)
- else:
- s = s + ' \\context Voice = %s \\%s\n' % (channel,
- track + channel)
- s = s + '>>\n\n'
+ s += clef.dump () + '\n'
+
+ c = 0
+ vv = 0
+ for channel in track:
+ v = 0
+ channel_name = get_channel_name (c)
+ c += 1
+ for voice in channel:
+ voice_context_name = get_voice_name (vv, zero_too_p=True)
+ voice_name = get_voice_name (v)
+ v += 1
+ vv += 1
+ voice_id = track_name + channel_name + voice_name
+ item = voice_first_item (voice)
+ context = 'Voice'
+ if item and item.__class__ == Text:
+ context = 'Lyrics'
+ s += ' \\context %(context)s = %(voice_context_name)s \\%(voice_id)s\n' % locals ()
+ s += '>>\n\n'
return s
-def thread_first_item (thread):
- for chord in thread:
- for event in chord:
- if (event[1].__class__ == Note
- or (event[1].__class__ == Text
+def voice_first_item (voice):
+ for event in voice:
+ if (event[1].__class__ == Note
+ or (event[1].__class__ == Text
and event[1].type == midi.LYRIC)):
-
- return event[1]
+ return event[1]
+ return None
+
+def channel_first_item (channel):
+ for voice in channel:
+ first = voice_first_item (voice)
+ if first:
+ return first
return None
def track_first_item (track):
- for thread in track:
- first = thread_first_item (thread)
+ for channel in track:
+ first = channel_first_item (channel)
if first:
return first
return None
-def guess_clef (track):
+def track_average_pitch (track):
i = 0
- p = 0
- for thread in track:
- for chord in thread:
- for event in chord:
+ p = [0]
+ v = 1
+ for channel in track:
+ for voice in channel:
+ c = 0
+ p.append (0)
+ for event in voice:
if event[1].__class__ == Note:
- i = i + 1
- p = p + event[1].pitch
- if i and p / i <= 3*12:
- return Clef (0)
- elif i and p / i <= 5*12:
- return Clef (1)
- elif i and p / i >= 7*12:
- return Clef (3)
- else:
- return Clef (2)
-
+ i += 1
+ c += 1
+ p[v] += event[1].pitch
+ if c:
+ p[0] += p[v]
+ p[v] = p[v] / c
+ v += 1
+ if i:
+ p[0] = p[0] / i
+ return p
+
+def get_best_clef (average_pitch):
+ if average_pitch:
+ if average_pitch <= 3*12:
+ return Clef (0)
+ elif average_pitch <= 5*12:
+ return Clef (1)
+ elif average_pitch >= 7*12:
+ return Clef (3)
+ return Clef (2)
+
+class Staff:
+ def __init__ (self, track):
+ self.voices = track.get_voices ()
+ def dump (self, i):
+ return dump_track (self.voices, i)
def convert_midi (in_file, out_file):
+ global midi
+ import midi
+
global clocks_per_1, clocks_per_4, key
global start_quant_clocks
- global duration_quant_clocks
+ global duration_quant_clocks
global allowed_tuplet_clocks
+ global time
+
+ str = open (in_file, 'rb').read ()
+ clocks_max = bar_max * clocks_per_1 * 2
+ midi_dump = midi.parse (str, clocks_max)
- str = open (in_file).read ()
- midi_dump = midi.parse (str)
-
clocks_per_1 = midi_dump[0][1]
clocks_per_4 = clocks_per_1 / 4
-
+ time = Time (4, 4)
+
if global_options.start_quant:
start_quant_clocks = clocks_per_1 / global_options.start_quant
allowed_tuplet_clocks = []
for (dur, num, den) in global_options.allowed_tuplets:
- allowed_tuplet_clocks.append (clocks_per_1 / den)
+ allowed_tuplet_clocks.append (clocks_per_1 / dur * num / den)
- tracks = []
- for t in midi_dump[1]:
- global_options.key = Key (0, 0, 0)
- tracks.append (split_track (t))
+ if global_options.verbose:
+ print 'allowed tuplet clocks:', allowed_tuplet_clocks
+
+ tracks = [create_track (t) for t in midi_dump[1]]
+ # urg, parse all global track events, such as Key first
+ # this fixes key in different voice/staff problem
+ for t in tracks:
+ t.music = t.parse ()
+ prev = None
+ staves = []
+ for t in tracks:
+ voices = t.get_voices ()
+ if ((t.name and prev and prev.name)
+ and t.name.split (':')[0] == prev.name.split (':')[0]):
+ # staves[-1].voices += voices
+ # all global track events first
+ staves[-1].voices = ([staves[-1].voices[0]]
+ + [voices[0]]
+ + staves[-1].voices[1:]
+ + voices[1:])
+ else:
+ staves.append (Staff (t))
+ prev = t
tag = '%% Lily was here -- automatically converted by %s from %s' % ( program_name, in_file)
-
- s = ''
- s = tag + '\n\\version "2.7.18"\n\n'
- for i in range (len (tracks)):
- s = s + dump_track (tracks[i], i)
- s = s + '\n\\score {\n <<\n'
-
+ s = tag
+ s += r'''
+\version "2.14.0"
+'''
+
+ s += r'''
+\layout {
+ \context {
+ \Voice
+ \remove "Note_heads_engraver"
+ \consists "Completion_heads_engraver"
+ \remove "Rest_engraver"
+ \consists "Completion_rest_engraver"
+ }
+}
+'''
+
+ for i in global_options.include_header:
+ s += '\n%% included from %(i)s\n' % locals ()
+ s += open (i).read ()
+ if s[-1] != '\n':
+ s += '\n'
+ s += '% end\n'
+
+ for i, t in enumerate (staves):
+ s += t.dump (i)
+
+ s += '\n\\score {\n <<\n'
+
+ control_track = False
i = 0
- for t in tracks:
- track = track_name (i)
- item = track_first_item (t)
-
- if item and item.__class__ == Note:
- s = s + ' \\context Staff=%s \\%s\n' % (track, track)
+ for i, staff in enumerate (staves):
+ track_name = get_track_name (i)
+ item = track_first_item (staff.voices)
+ staff_name = track_name
+ context = None
+ if not i and not item and len (staves) > 1:
+ control_track = track_name
+ continue
+ elif (item and item.__class__ == Note):
+ context = 'Staff'
+ if control_track:
+ s += ' \\context %(context)s=%(staff_name)s \\%(control_track)s\n' % locals ()
elif item and item.__class__ == Text:
- s = s + ' \\context Lyrics=%s \\%s\n' % (track, track)
-
- i += 1
- s = s + ' >>\n}\n'
+ context = 'Lyrics'
+ if context:
+ s += ' \\context %(context)s=%(staff_name)s \\%(track_name)s\n' % locals ()
+
+ s = s + ''' >>
+ \layout {}
+ \midi {}
+}
+'''
- progress (_ ("%s output to `%s'...") % ('LY', out_file))
+ if not global_options.quiet:
+ progress (_ ("%s output to `%s'...") % ('LY', out_file))
if out_file == '-':
handle = sys.stdout
p.add_option ('-a', '--absolute-pitches',
action='store_true',
- help=_ ("print absolute pitches"))
+ help=_ ('print absolute pitches'))
p.add_option ('-d', '--duration-quant',
- metavar= _("DUR"),
- help=_ ("quantise note durations on DUR"))
+ metavar=_ ('DUR'),
+ help=_ ('quantise note durations on DUR'))
+ p.add_option ('-D', '--debug',
+ action='store_true',
+ help=_ ('debug printing'))
p.add_option ('-e', '--explicit-durations',
action='store_true',
- help=_ ("print explicit durations"))
- p.add_option("-h", "--help",
- action="help",
- help=_ ("show this help and exit"))
- p.add_option('-k', '--key', help=_ ("set key: ALT=+sharps|-flats; MINOR=1"),
- metavar=_ ("ALT[:MINOR]"),
- default='0'),
- p.add_option ('-o', '--output', help=_ ("write output to FILE"),
- metavar=_("FILE"),
+ help=_ ('print explicit durations'))
+ p.add_option('-h', '--help',
+ action='help',
+ help=_ ('show this help and exit'))
+ p.add_option('-i', '--include-header',
+ help=_ ('prepend FILE to output'),
+ action='append',
+ default=[],
+ metavar=_ ('FILE'))
+ p.add_option('-k', '--key', help=_ ('set key: ALT=+sharps|-flats; MINOR=1'),
+ metavar=_ ('ALT[:MINOR]'),
+ default=None),
+ p.add_option ('-o', '--output', help=_ ('write output to FILE'),
+ metavar=_ ('FILE'),
action='store')
- p.add_option ('-s', '--start-quant',help= _ ("quantise note starts on DUR"),
- metavar=_ ("DUR"))
+ p.add_option ('-p', '--preview', help=_ ('preview of first 4 bars'),
+ action='store_true')
+ p.add_option ('-q', '--quiet',
+ action="store_true",
+ help=_ ("suppress progress messages and warnings about excess voices"))
+ p.add_option ('-s', '--start-quant',help= _ ('quantise note starts on DUR'),
+ metavar=_ ('DUR'))
+ p.add_option ('-S', '--skip',
+ action = "store_true",
+ help =_ ("use s instead of r for rests"))
p.add_option ('-t', '--allow-tuplet',
- metavar=_ ("DUR*NUM/DEN"),
- action = "append",
- dest="allowed_tuplets",
- help=_ ("allow tuplet durations DUR*NUM/DEN"),
+ metavar=_ ('DUR*NUM/DEN'),
+ action = 'append',
+ dest='allowed_tuplets',
+ help=_ ('allow tuplet durations DUR*NUM/DEN'),
default=[])
- p.add_option ('-V', '--verbose', help=_ ("be verbose"),
- action='store_true'
- ),
- p.version = "midi2ly (LilyPond) @TOPLEVEL_VERSION@"
- p.add_option("--version",
- action="version",
- help=_ ("show version number and exit"))
- p.add_option ('-w', '--warranty', help=_ ("show warranty and copyright"),
- action='store_true',
- ),
- p.add_option ('-x', '--text-lyrics', help=_ ("treat every text as a lyric"),
+ p.add_option ('-V', '--verbose', help=_ ('be verbose'),
+ action='store_true')
+ p.version = 'midi2ly (LilyPond) @TOPLEVEL_VERSION@'
+ p.add_option ('--version',
+ action='version',
+ help=_ ('show version number and exit'))
+ p.add_option ('-w', '--warranty', help=_ ('show warranty and copyright'),
+ action='store_true',)
+ p.add_option ('-x', '--text-lyrics', help=_ ('treat every text as a lyric'),
action='store_true')
- p.add_option_group (ly.display_encode (_ ("Examples")),
+ p.add_option_group (ly.display_encode (_ ('Examples')),
description = r'''
$ midi2ly --key=-2:1 --duration-quant=32 --allow-tuplet=4*2/3 --allow-tuplet=2*4/3 foo.midi
''')
def do_options ():
- opt_parser = get_option_parser()
+ opt_parser = get_option_parser ()
(options, args) = opt_parser.parse_args ()
+ if options.warranty:
+ warranty ()
+ sys.exit (0)
+
if not args or args[0] == '-':
opt_parser.print_help ()
- ly.stderr_write ('\n%s: %s %s\n' % (program_name, _ ("error: "),
- _ ("no files specified on command line.")))
+ ly.stderr_write ('\n%s: %s %s\n' % (program_name, _ ('error: '),
+ _ ('no files specified on command line.')))
sys.exit (2)
if options.duration_quant:
options.duration_quant = int (options.duration_quant)
- if options.warranty:
- warranty ()
- sys.exit (0)
- if 1:
+ if options.key:
(alterations, minor) = map (int, (options.key + ':0').split (':'))[0:2]
sharps = 0
flats = 0
sharps = alterations
else:
flats = - alterations
-
options.key = Key (sharps, flats, minor)
-
if options.start_quant:
options.start_quant = int (options.start_quant)
-
+
+ global bar_max
+ if options.preview:
+ bar_max = 4
+
options.allowed_tuplets = [map (int, a.replace ('/','*').split ('*'))
for a in options.allowed_tuplets]
-
+
+ if options.verbose:
+ sys.stderr.write ('Allowed tuplets: %s\n' % `options.allowed_tuplets`)
+
global global_options
global_options = options
return args
-def main():
- files = do_options()
+def main ():
+ files = do_options ()
+ exts = ['.midi', '.mid', '.MID']
for f in files:
g = f
- g = strip_extension (g, '.midi')
- g = strip_extension (g, '.mid')
- g = strip_extension (g, '.MID')
- (outdir, outbase) = ('','')
+ for e in exts:
+ g = strip_extension (g, e)
+ if not os.path.exists (f):
+ for e in exts:
+ n = g + e
+ if os.path.exists (n):
+ f = n
+ break
if not global_options.output:
outdir = '.'
outbase = os.path.basename (g)
- o = os.path.join (outdir, outbase + '-midi.ly')
- elif global_options.output[-1] == os.sep:
+ o = outbase + '-midi.ly'
+ elif (global_options.output[-1] == os.sep
+ or os.path.isdir (global_options.output)):
outdir = global_options.output
outbase = os.path.basename (g)
- os.path.join (outdir, outbase + '-gen.ly')
+ o = os.path.join (outdir, outbase + '-midi.ly')
else:
o = global_options.output
(outdir, outbase) = os.path.split (o)
- if outdir != '.' and outdir != '':
- try:
- os.mkdir (outdir, 0777)
- except OSError:
- pass
+ if outdir and outdir != '.' and not os.path.exists (outdir):
+ os.mkdir (outdir, 0777)
convert_midi (f, o)
+
if __name__ == '__main__':
- main()
+ main ()