X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scripts%2Fmidi2ly.py;h=9c490a5f2caf95bd737fee5046878054f69ab364;hb=HEAD;hp=d8d51d667bb9eb520b9fb1f66f5b77443bca6202;hpb=62f221b6b3861ff055dc0384ec3c48cc665688cd;p=lilypond.git diff --git a/scripts/midi2ly.py b/scripts/midi2ly.py index d8d51d667b..9c490a5f2c 100644 --- a/scripts/midi2ly.py +++ b/scripts/midi2ly.py @@ -1,24 +1,28 @@ #!@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 +# Jan Nieuwenhuizen +# +# 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 -# Jan Nieuwenhuizen +# 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 . ''' 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 @@ -28,7 +32,6 @@ import sys @relocate-preamble@ """ -import midi import lilylib as ly global _;_=ly._ @@ -43,13 +46,13 @@ global_options = None 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 ################################################################ @@ -57,6 +60,9 @@ allowed_tuplet_clocks = [] program_name = sys.argv[0] program_version = '@TOPLEVEL_VERSION@' +authors = ('Jan Nieuwenhuizen ', + 'Han-Wen Nienhuys ') + errorport = sys.stderr def identify (): @@ -65,28 +71,31 @@ 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) @@ -101,10 +110,8 @@ class Duration: 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]: @@ -128,7 +135,7 @@ class Duration: 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 @@ -162,7 +169,11 @@ class Note: 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 @@ -194,7 +205,6 @@ class Note: o = self.pitch / 12 - 4 - key = global_options.key if key.minor: # as -> gis if (key.sharps == 0 and key.flats == 0 @@ -231,12 +241,12 @@ class Note: 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] @@ -245,25 +255,27 @@ class Note: 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 + ' ' @@ -279,7 +291,7 @@ class Time: def __repr__ (self): return 'Time(%d/%d)' % (self.num, self.den) - + def dump (self): global time time = self @@ -292,12 +304,12 @@ class Tempo: 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"') @@ -306,7 +318,7 @@ class Clef: def __repr__ (self): return 'Clef(%s)' % self.clefs[self.type] - + def dump (self): return '\n \\clef %s\n ' % self.clefs[self.type] @@ -331,7 +343,7 @@ class Key: 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: @@ -370,57 +382,198 @@ class Text: '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 @@ -437,7 +590,7 @@ def end_note (pitches, notes, t, e): (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 @@ -455,102 +608,6 @@ def end_note (pitches, notes, t, e): 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: @@ -560,17 +617,17 @@ def unthread_notes (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) @@ -583,12 +640,12 @@ def gcd (a,b): 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 () + ' ' @@ -607,14 +664,17 @@ def dump_chord (ch): 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 @@ -623,26 +683,25 @@ def dump_bar_line (last_bar_t, t, bar_count): 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 = [] @@ -653,9 +712,9 @@ def dump_channel (thread, skip): else: if ch: chs.append ((last_e[0], ch)) - + ch = [e[1]] - + last_e = e if ch: @@ -664,9 +723,9 @@ def dump_channel (thread, skip): 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 @@ -674,124 +733,227 @@ def dump_channel (thread, skip): 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 @@ -800,37 +962,91 @@ def convert_midi (in_file, out_file): 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 @@ -848,72 +1064,88 @@ def get_option_parser (): 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 ''') p.add_option_group ('', - description=(_ ('Report bugs via') - + ''' http://post.gmane.org/post.php''' - '''?group=gmane.comp.gnu.lilypond.bugs\n''')) + description=( + _ ('Report bugs via %s') + % 'http://post.gmane.org/post.php' + '?group=gmane.comp.gnu.lilypond.bugs') + '\n') return p 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 @@ -921,49 +1153,58 @@ def do_options (): 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 ()