def test_grouping():
midi = Midi(500)
n0 = NoteOnEvent(0, 0, 0)
n1 = NoteOnEvent(1, 10, 0)
n2 = NoteOnEvent(1, 20, 0)
n3 = NoteOnEvent(2, 30, 0)
n4 = NoteOnEvent(2, 30, 0)
midi.append(n0, 510)
midi.append(n1, 400)
midi.append(n2, 10)
midi.append(n3, 0)
midi.append(n4, 40)
midi.append(n0, 510)
midi.append(n0, 400)
midi.append(n3, 10)
midi.append(n2, 0)
midi.append(n4, 40)
midi.group()
print
for t in midi.timedEventsList:
print t
print t.sample(44100, 500, 60)
# midi.quantize(fraction = 4)
print
midi.group()
print
for t in midi.timedEventsList:
print t
print t.sample(44100, 500, 60)
comp = Composer(order = 2)
comp.learnFromMidi(midi)
print
print comp.marcovChains[0]
print
print comp.marcovChains[1]
"""
class ScreenEventHandler(BaseEventHandler):
def __init__(self, event_dispatcher):
screen_event_types = [(custom_event_types.TilingRefresh, self.handle_tiling_refresh)]
BaseEventHandler.__init__(self, event_dispatcher, screen_event_types)
self.composer = Composer()
self.get_unmanaged_screens()
def handle_tiling_refresh(self, event):
main_display = self.event_dispatcher.display
self.composer.compose_windows(main_display.screen().root)
def get_unmanaged_screens(self):
# Get all active screens.
for screen_id in xrange(self.event_dispatcher.display.screen_count()):
if self.event_dispatcher.redirect_screen_events(screen_id):
self.event_dispatcher.screens.append(screen_id)
def test_readFile():
comp = Composer(order = 3)
midi_file_folder = "../midifiles/classical_piano/c_maj/format0"
paths = [os.path.join(midi_file_folder, f) for f in os.listdir(midi_file_folder)]
paths = paths[:3]
for path in paths:
midi = midi.readFile(path)
# midi.quantize(32)
print "Learning (" + path + ") ..."
comp.learnFromMidi(midi)
# print comp.marcovChains[1]
midi = comp.getMidi(1, 1000)
for e in midi.timedEventsList:
print e
samplerate = 44100
bpm = 120
numSamples = 60 * 44100
out = []
s = CSynth(samplerate)
it = iter(midi.timedEventsList)
currentSample = 0
# sample the last events was send to the synth at
lastEventsSample = 0
print "Rendering..."
while currentSample < numSamples:
try:
nextEvents = it.next()
# calculate samples between the two events
nextEventsSample = nextEvents.sample(samplerate, midi.unitsPerBeat, bpm)
sampleDiff = nextEventsSample - lastEventsSample
currentSample += sampleDiff
while sampleDiff > 0:
if sampleDiff < BUFFER_SIZE:
out.extend(s.getSamplesBuffered(sampleDiff))
sampleDiff = 0
else:
out.extend(s.getSamplesBuffered(min(sampleDiff, BUFFER_SIZE)))
sampleDiff -= BUFFER_SIZE
for event in nextEvents.events:
if event.type == Messages.NOTE_ON:
s.noteOn(event.note)
if event.type == Messages.NOTE_OFF:
s.noteOff(event.note)
lastEventsSample = nextEventsSample
except StopIteration:
break
# render rest
while currentSample < numSamples:
if numSamples - currentSample > BUFFER_SIZE:
out.extend(s.getSamplesBuffered(BUFFER_SIZE))
currentSample += BUFFER_SIZE
elif numSamples - currentSample > 0:
out.extend(s.getSamplesBuffered(numSamples - currentSample))
currentSample = numSamples
else:
break
print "Writing to file..."
inout.writeMono("/tmp/asdf_python.wav", out, 44100)
def __init__(self, event_dispatcher):
screen_event_types = [(custom_event_types.TilingRefresh, self.handle_tiling_refresh)]
BaseEventHandler.__init__(self, event_dispatcher, screen_event_types)
self.composer = Composer()
self.get_unmanaged_screens()
