1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
|
# SPDX-FileCopyrightText: 2017 Ole Martin Bjorndalen <ombdalen@gmail.com>
#
# SPDX-License-Identifier: MIT
import itertools
import time
import mido
from mido.messages import Message
from mido.midifiles.meta import MetaMessage, UnknownMetaMessage
from mido.midifiles.tracks import MidiTrack
zip = getattr(itertools, 'izip', zip)
def test_track_slice():
track = MidiTrack()
# Slice should return MidiTrack object.
assert isinstance(track[::], MidiTrack)
def test_track_name():
name1 = MetaMessage('track_name', name='name1')
name2 = MetaMessage('track_name', name='name2')
# The track should use the first name it finds.
track = MidiTrack([name1, name2])
assert track.name == name1.name
def test_track_repr():
track = MidiTrack([
Message('note_on', channel=1, note=2, time=3),
Message('note_off', channel=1, note=2, time=3),
])
track_eval = eval(repr(track)) # noqa: S307
for m1, m2 in zip(track, track_eval):
assert m1 == m2
def test_merge_large_midifile():
mid = mido.MidiFile()
for k in range(5):
t = mido.MidiTrack()
for _ in range(10000):
t.append(mido.Message("note_on", note=72, time=1000 + 100 * k))
t.append(mido.Message("note_off", note=72, time=500 + 100 * k))
mid.tracks.append(t)
# Add meta messages for testing.
meta1 = mido.MetaMessage('track_name', name='Test Track 1')
meta2 = mido.MetaMessage('track_name', name='Test Track 2')
meta3 = mido.MetaMessage('time_signature',
numerator=4,
denominator=4,
clocks_per_click=24,
notated_32nd_notes_per_beat=8)
unknown_meta = mido.UnknownMetaMessage(0x50, b'\x01\x02\x03')
mid.tracks[0].insert(0, meta1)
mid.tracks[1].insert(0, meta2)
mid.tracks[2].insert(0, meta3)
mid.tracks[3].insert(0, unknown_meta)
start = time.time()
merged = list(mido.merge_tracks(mid.tracks, skip_checks=True))
finish = time.time()
merged_duration_ticks = sum(msg.time for msg in merged)
max_track_duration_ticks = max(
sum(msg.time for msg in t) for t in mid.tracks)
assert merged_duration_ticks == max_track_duration_ticks
assert (finish - start) < 3.0
|
