Mercurial > ~darius > hgwebdir.cgi > musiccutter
changeset 2:b1aac55d2864
Parameterise page size add some more debugging.
Seems to work OK for rests etc
| author | Daniel O'Connor <darius@dons.net.au> |
|---|---|
| date | Sun, 06 Mar 2016 22:43:28 +1030 |
| parents | 123b42d95ab8 |
| children | 49a33c431b45 |
| files | Makefile musiccutter.py test.mup |
| diffstat | 3 files changed, 35 insertions(+), 13 deletions(-) [+] |
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--- a/Makefile Sat Mar 05 22:47:56 2016 +1030 +++ b/Makefile Sun Mar 06 22:43:28 2016 +1030 @@ -13,7 +13,7 @@ $(MUP) $(MOPTS) $(MPOPTS) $> > $@ clean: - $(RM) test.ps test-piano.ps + $(RM) test.ps test-piano.ps test.midi # Generic rules .mup.midi:
--- a/musiccutter.py Sat Mar 05 22:47:56 2016 +1030 +++ b/musiccutter.py Sun Mar 06 22:43:28 2016 +1030 @@ -7,10 +7,10 @@ def test(): # http://www.orgues-de-barbarie.com/wp-content/uploads/2014/09/format-cartons.pdf - conf = { 'notefile' : 'notes', 'pitch' : 5.5 } + conf = { 'notefile' : 'notes', 'pitch' : 5.5 , 'pagewidth' : 20, 'pageheight' : 15.5 } midi2note, note2midi = genmidi2note() note2slot = loadnote2slot(conf['notefile'], note2midi) - midi2svg('test.midi', 'test%d.svg', conf['pitch'], midi2note, note2midi, note2slot) + midi2svg('test.midi', 'test%d.svg', conf['pitch'], midi2note, note2midi, note2slot, conf['pagewidth'], conf['pageheight']) # http://www.electronics.dit.ie/staff/tscarff/Music_technology/midi/midi_note_numbers_for_octaves.htm def genmidi2note(): @@ -44,24 +44,27 @@ return note2slot -def emitnote(svg, slot, start, notelen): +def emitnote(svg, slot, start, notelen, pageheight): # Let us say 185 ticks for a quaver and that is 0.5cm long tickscale = 185.0 / 0.5 pitch = 0.55 offset = 0.60 x = start / tickscale - y = offset + slot * pitch + y = pageheight - (offset + slot * pitch) w = notelen / tickscale - h = pitch / 10.0 + h = pitch print 'x = %.3f y = %.3f w = %.3f h = %.3f' % (x, y, w, h) svg.add(svgwrite.shapes.Rect(insert = ('%.3fcm' % (x), '%.3fcm' % (y)), size = ('%.3fcm' % (w), '%.3fcm' % (h)), stroke = 'red', stroke_width = '1px', fill = 'red')) -def midi2svg(inf, outpat, pitch, midi2note, note2midi, note2slot): +def midi2svg(inf, outpat, pitch, midi2note, note2midi, note2slot, pagewidth, pageheight): + playablecount = 0 + unplayablecount = 0 midi = mido.MidiFile(inf) - svg = svgwrite.Drawing(outpat % (0), size = ('20.0cm', '15.5cm')) + svg = svgwrite.Drawing(outpat % (0), size = ('%.3fcm' % (pagewidth), '%.3fcm' % (pageheight))) tnum = 0 + for t in midi.tracks: print "Track", tnum tnum += 1 @@ -71,6 +74,7 @@ ctime = 0 for ev in t: ctime += ev.time + print ctime, ev if ev.type == 'note_on' and ev.velocity > 0: if ev.note in channels[ev.channel]: print "Duplicate channel on message" @@ -83,13 +87,27 @@ note = midi2note[ev.note] if note not in note2slot: print 'Skipping unplayable note %s' % (note) + unplayablecount += 1 else: - notelen = ctime - channels[ev.channel][ev.note] + start = channels[ev.channel][ev.note] + notelen = ctime - start slot = note2slot[note] - print 'Note %s (%d) at %d length %d' % (note, slot, ctime, notelen) - emitnote(svg, slot, ctime, notelen) + print 'Note %s (%d) at %d length %d' % (note, slot, start, notelen) + emitnote(svg, slot, start, notelen, pageheight) + print + playablecount += 1 del channels[ev.channel][ev.note] - svg.save() + elif ev.type == 'end_of_track': + print 'EOT, flushing' + for chan in channels: + for ev in chan: + print ev + print + print + print + svg.save() + print 'Playable count:', playablecount + print 'Unplayable count:', unplayablecount if __name__ == '__main__': main()