def process_parse_txt(p):
kb = [-1] * 88
sheet = list(map(lambda _: [], range(88)))
sheet2 = IntervalTree()
t = 0
last_t = 0
l = []
i = 0
print('Opening {}...'.format(p))
t0 = time.time()
t1 = t0
with open(p) as noteFile:
next(noteFile) #skip header line
for line in noteFile:
action = line.split()
assert(len(action)==3)
begin = float(action[0])
end = float(action[1])
n = normalize(int(action[2]))
sheet[n].append((begin, end))
sheet2.append(Interval(begin, end, n))
tn = time.time()
print('Parsed txt file ({:.3f}).'.format(tn - t0))
print()
return (sheet, sheet2)
def process_parse_midi(p):
kb = [-1] * 88
sheet = list(map(lambda _: [], range(88)))
sheet2 = IntervalTree()
mid = mido.MidiFile(p)
t = 0
last_t = 0
l = []
i = 0
print('Opening {}...'.format(p))
t0 = time.time()
t1 = t0
for msg in mid:
'''
if msg.type == 'note_on' or msg.type == 'note_off':
t += msg.time
if msg.type == 'note_on':
l.append(note_name(normalize(msg.note)))
elif msg.type == 'note_off':
pass
if msg.time != 0:
print('{}: {}'.format(t, l))
l = []
'''
t += msg.time
if msg.type == 'note_on' and msg.velocity != 0:
n = normalize(msg.note)
if n is None:
continue
#assert(kb[n] == -1)
if kb[n] == -1:
kb[n] = t
else:
# TODO hmmm
sheet[n].append((kb[n], t))
kb[n] = t
#note_ons with zero velocity also count as valid note_offs
elif msg.type == 'note_off' or (msg.type == 'note_on' and msg.velocity == 0):
n = normalize(msg.note)
if n is None:
continue
if kb[n] < 0:
# TODO log
pass
else:
if kb[n] == t:
# TODO log
print('- note {} had empty interval, skipping'.format(n))
else:
sheet[n].append((kb[n], t))
sheet2.append(Interval(kb[n], t, n))
kb[n] = -1
i += 1
t2 = time.time()
if i % 50 == 0:
print('- {} records at {}:{:04.1f} ({:.3f}, {:.3f})...'.format(i, math.floor(t / 60), t % 60, t2 - t1, t2 - t0))
t1 = t2
if i == 200:
#break
pass
tn = time.time()
print('Parsed midi file ({:.3f}).'.format(tn - t0))
print()
return (sheet, sheet2)
