def testTimeSignature(self):
time = 0
track = 0
numerator = 4
denominator = 2
clocks_per_tick = 24
MyMIDI = MIDIFile(1, file_format=2)
MyMIDI.addTimeSignature(track, time, numerator, denominator,
clocks_per_tick)
MyMIDI.close()
data = Decoder(MyMIDI.tracks[0].MIDIdata)
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].evtname,
'TimeSignature')
self.assertEqual(data.unpack_into_byte(0), 0x00) # time
self.assertEqual(data.unpack_into_byte(1), 0xFF) # Code
self.assertEqual(data.unpack_into_byte(2), 0x58) # subcode
self.assertEqual(data.unpack_into_byte(3), 0x04) # Data length
self.assertEqual(data.unpack_into_byte(4), numerator)
self.assertEqual(data.unpack_into_byte(5), denominator)
self.assertEqual(data.unpack_into_byte(6),
clocks_per_tick) # Data length
self.assertEqual(data.unpack_into_byte(7),
0x08) # 32nd notes per quarter note
# We also want to check with a format 1 file, make sure it ends up in
# the tempo track
time = 0
track = 1
numerator = 4
denominator = 2
clocks_per_tick = 24
MyMIDI = MIDIFile(2, file_format=1)
MyMIDI.addTimeSignature(track, time, numerator, denominator,
clocks_per_tick)
MyMIDI.close()
data = Decoder(MyMIDI.tracks[0].MIDIdata)
self.assertEqual(MyMIDI.tracks[0].MIDIEventList[0].evtname,
'TimeSignature')
self.assertEqual(data.unpack_into_byte(0), 0x00) # time
self.assertEqual(data.unpack_into_byte(1), 0xFF) # Code
self.assertEqual(data.unpack_into_byte(2), 0x58) # subcode
self.assertEqual(data.unpack_into_byte(3), 0x04) # Data length
self.assertEqual(data.unpack_into_byte(4), numerator)
self.assertEqual(data.unpack_into_byte(5), denominator)
self.assertEqual(data.unpack_into_byte(6),
clocks_per_tick) # Data length
self.assertEqual(data.unpack_into_byte(7),
0x08) # 32nd notes per quarter note
def testEndOfTrack(self):
MyMIDI = MIDIFile(1, ticks_per_quarternote=480)
MyMIDI.addTimeSignature(0, 0, 4, 2, 8)
MyMIDI.addNote(0, 0, 60, 0, 0.75, 55)
MyMIDI.addNote(0, 0, 64, 1, 0.75, 55)
MyMIDI.addNote(0, 0, 67, 2, 0.75, 55)
MyMIDI.addNote(0, 0, 60, 4, 0.75, 55)
MyMIDI.addNote(0, 0, 64, 5, 0.75, 55)
MyMIDI.addNote(0, 0, 67, 6, 0.75, 55)
with open(os.path.join(gettempdir(), "TestEndOfTrack_1.mid"),
"wb") as f_midi:
MyMIDI.writeFile(f_midi)
MyMIDI = MIDIFile(1, ticks_per_quarternote=480)
MyMIDI.addTimeSignature(0, 0, 4, 2, 8)
MyMIDI.addNote(0, 0, 60, 0, 0.75, 55)
MyMIDI.addNote(0, 0, 64, 1, 0.75, 55)
MyMIDI.addNote(0, 0, 67, 2, 0.75, 55)
MyMIDI.addNote(0, 0, 60, 4, 0.75, 55)
MyMIDI.addNote(0, 0, 64, 5, 0.75, 55)
MyMIDI.addNote(0, 0, 67, 6, 0.75, 55)
MyMIDI.addEndOfTrack(0, 6.65)
with open(os.path.join(gettempdir(), "TestEndOfTrack_2.mid"),
"wb") as f_midi:
MyMIDI.writeFile(f_midi)
# No "End-Of-Track" and "End-Of-Track" placed before the final note event
# should give the same result
# --- Actually, not correct. The system track end comes at a different
# time. This test is commented for now.
#self.assertTrue(filecmp.cmp(os.path.join(gettempdir(), "TestEndOfTrack_1.mid"), os.path.join(gettempdir(), "TestEndOfTrack_2.mid")))
MyMIDI = MIDIFile(1, ticks_per_quarternote=480)
MyMIDI.addTimeSignature(0, 0, 4, 2, 8)
MyMIDI.addNote(0, 0, 60, 0, 0.75, 55)
MyMIDI.addNote(0, 0, 64, 1, 0.75, 55)
MyMIDI.addNote(0, 0, 67, 2, 0.75, 55)
MyMIDI.addNote(0, 0, 60, 4, 0.75, 55)
MyMIDI.addNote(0, 0, 64, 5, 0.75, 55)
MyMIDI.addNote(0, 0, 67, 6, 0.75, 55)
MyMIDI.addEndOfTrack(0, 8)
with open(os.path.join(gettempdir(), "TestEndOfTrack_3.mid"),
"wb") as f_midi:
MyMIDI.writeFile(f_midi)
# No "End-Of-Track" and "End-Of-Track" placed after the final note event
# should give a different result
self.assertFalse(
filecmp.cmp(os.path.join(gettempdir(), "TestEndOfTrack_1.mid"),
os.path.join(gettempdir(), "TestEndOfTrack_3.mid")))
os.remove(os.path.join(gettempdir(), "TestEndOfTrack_1.mid"))
os.remove(os.path.join(gettempdir(), "TestEndOfTrack_2.mid"))
os.remove(os.path.join(gettempdir(), "TestEndOfTrack_3.mid"))