X-Git-Url: https://git.donarmstrong.com/?a=blobdiff_plain;f=scripts%2Fmidi2ly.py;h=79351bbfa2c1817b8fde62871471b18afff34bce;hb=8cd87804592a2815e35cbdaff2cd98e5e3dc59ce;hp=c1f3543b88f6429135e8f7eef0f5301a90259c6b;hpb=f86f00c1a8de0f034ba48506de2801c074bd5422;p=lilypond.git diff --git a/scripts/midi2ly.py b/scripts/midi2ly.py index c1f3543b88..79351bbfa2 100644 --- a/scripts/midi2ly.py +++ b/scripts/midi2ly.py @@ -4,7 +4,7 @@ # This file is part of LilyPond, the GNU music typesetter. # -# Copyright (C) 1998--2011 Han-Wen Nienhuys +# Copyright (C) 1998--2014 Han-Wen Nienhuys # Jan Nieuwenhuizen # # LilyPond is free software: you can redistribute it and/or modify @@ -23,15 +23,6 @@ ''' 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 @@ -87,7 +78,7 @@ def warranty (): %s %s -''' % ( _ ('Copyright (c) %s by') % '1998--2011', +''' % ( _ ('Copyright (c) %s by') % '1998--2014', '\n '.join (authors), _ ('Distributed under terms of the GNU General Public License.'), _ ('It comes with NO WARRANTY.'))) @@ -120,8 +111,6 @@ 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): @@ -411,7 +400,8 @@ class Text: s = s + ' ' elif (self.text.strip () and self.type == midi.SEQUENCE_TRACK_NAME - and not self.text == 'control track'): + 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 () @@ -422,34 +412,158 @@ class Text: 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') -def split_track (track): - chs = {} - for i in range (16): - chs[i] = [] + # 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) - for e in track: + 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`) + + 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) - - threads = [] - i = 0 - for v in chs.values (): - i += 1 - if not v: - continue - debug ('channel: %d\n' % i) - events = events_on_channel (v) - t = unthread_notes (events) - if len (t): - threads.append (t) - return threads + track.add (e) + return track def quantise_clocks (clocks, quant): q = int (clocks / quant) * quant @@ -484,111 +598,6 @@ 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)): - 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 - 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) - if not t and global_options.key: - # At t == 0, a set --key overrides us - k = global_options.key - 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: @@ -651,7 +660,6 @@ def dump_chord (ch): for i in notes[1:]: s = s + i.dump (dump_dur=False) s = s + '>' - s = s + notes[0].duration.dump () + ' ' reference_note = r return s @@ -674,10 +682,6 @@ def dump_bar_line (last_bar_t, t, bar_count): def dump_voice (thread, skip): global reference_note, time - - # urg LilyPond doesn't start at c4, but - # remembers from previous tracks! - # reference_note = Note (clocks_per_4, 4*12, 0) ref = Note (0, 4*12, 0) if not reference_note: reference_note = ref @@ -764,10 +768,14 @@ def get_voice_name (i, zero_too_p=False): 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]] = i + 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'] @@ -777,6 +785,9 @@ def get_voice_layout (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 @@ -816,7 +827,12 @@ def dump_track (track, n): if not n and not vv and global_options.key: s += global_options.key.dump () if average_pitch[vv+1] and voices > 1: - s += ' \\voice' + get_voice_layout (average_pitch[1:])[vv] + '\n' + 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 @@ -900,6 +916,12 @@ def get_best_clef (average_pitch): 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 clocks_per_1, clocks_per_4, key global start_quant_clocks @@ -928,16 +950,33 @@ def convert_midi (in_file, out_file): if global_options.verbose: print 'allowed tuplet clocks:', allowed_tuplet_clocks - tracks = [] - for t in midi_dump[1]: - tracks.append (split_track (t)) + 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 = tag s += r''' -\version "2.7.38" +\version "2.14.0" ''' s += r''' @@ -959,31 +998,38 @@ def convert_midi (in_file, out_file): s += '\n' s += '% end\n' - for i in range (len (tracks)): - s = s + dump_track (tracks[i], i) + for i, t in enumerate (staves): + s += t.dump (i) s += '\n\\score {\n <<\n' + control_track = False i = 0 - for t in tracks: + for i, staff in enumerate (staves): track_name = get_track_name (i) - item = track_first_item (t) + item = track_first_item (staff.voices) staff_name = track_name context = None - if not i and not item and len (tracks) > 1: - # control track - staff_name = get_track_name (1) - context = 'Staff' + 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: context = 'Lyrics' if context: s += ' \\context %(context)s=%(staff_name)s \\%(track_name)s\n' % locals () - i += 1 - s = s + ' >>\n}\n' - progress (_ ("%s output to `%s'...") % ('LY', out_file)) + s = s + ''' >> + \layout {} + \midi {} +} +''' + + if not global_options.quiet: + progress (_ ("%s output to `%s'...") % ('LY', out_file)) if out_file == '-': handle = sys.stdout @@ -1006,27 +1052,30 @@ def get_option_parser (): metavar=_ ('DUR'), help=_ ('quantise note durations on DUR')) p.add_option ('-D', '--debug', - action='store_true', - help=_ ('debug printing')) + 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')) + action='help', + help=_ ('show this help and exit')) p.add_option('-i', '--include-header', - help=_ ('prepend FILE to output'), - action='append', - default=[], - metavar=_ ('FILE')) + 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), + metavar=_ ('ALT[:MINOR]'), + default=None), p.add_option ('-o', '--output', help=_ ('write output to FILE'), metavar=_ ('FILE'), action='store') 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', @@ -1039,15 +1088,13 @@ def get_option_parser (): help=_ ('allow tuplet durations DUR*NUM/DEN'), default=[]) p.add_option ('-V', '--verbose', help=_ ('be verbose'), - action='store_true' - ), + 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', - ), + action='store_true',) p.add_option ('-x', '--text-lyrics', help=_ ('treat every text as a lyric'), action='store_true')