def testDeinterleaveNotes(self):
MyMIDI = MIDIFile(1, adjust_origin=False)
track = 0
channel = 0
pitch = 100
time1 = 0
time2 = 1
duration = 2
volume = 100
MyMIDI.addNote(track, channel, pitch, time1, duration,
volume) # on at 0 off at 2
MyMIDI.addNote(track, channel, pitch, time2, duration,
volume + 1) # on at 1 off at 3
MyMIDI.close()
# ticks have already been converted to delta ticks
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].evtname, 'NoteOn')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].tick,
MyMIDI.time_to_ticks(time1))
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].evtname, 'NoteOff')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].tick,
MyMIDI.time_to_ticks(time2))
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[2].evtname, 'NoteOn')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[2].tick,
MyMIDI.time_to_ticks(time2 - time2))
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[3].evtname, 'NoteOff')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[3].tick,
MyMIDI.time_to_ticks(time2 - time2 + duration))
def testAdjustOrigin(self):
track = 0
channel = 0
pitch = 69
time = 1
duration = 0.1
volume = 64
MyMIDI = MIDIFile(1, adjust_origin=True)
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
time = 1.1
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
MyMIDI.close()
data = Decoder(MyMIDI.tracks[1].MIDIdata)
self.assertEqual(data.unpack_into_byte(0), 0x00) # first time
self.assertEqual(data.unpack_into_byte(8), 0x00) # seconds time
MyMIDI = MIDIFile(1, adjust_origin=False)
time = 0.1
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
time = 0.2
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
MyMIDI.close()
data = Decoder(MyMIDI.tracks[1].MIDIdata)
self.assertEqual(data.unpack_into_byte(0),
MyMIDI.ticks_per_quarternote /
10) # first time, should be an integer < 127
self.assertEqual(data.unpack_into_byte(8), 0x00) # first time
def testAddNote(self):
MyMIDI = MIDIFile(
1) # a format 1 file, so we increment the track number below
track = 0
channel = 0
pitch = 100
time = 0
duration = 1
volume = 100
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
self.assertEqual(MyMIDI.tracks[1].eventList[0].evtname, "NoteOn")
self.assertEqual(MyMIDI.tracks[1].eventList[0].pitch, pitch)
self.assertEqual(MyMIDI.tracks[1].eventList[0].tick,
MyMIDI.time_to_ticks(time))
self.assertEqual(MyMIDI.tracks[1].eventList[0].duration,
MyMIDI.time_to_ticks(duration))
self.assertEqual(MyMIDI.tracks[1].eventList[0].volume, volume)
def testMultiClose(self):
track = 0
channel = 0
pitch = 69
time = 0
duration = 1.0
volume = 64
MyMIDI = MIDIFile(1)
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
MyMIDI.close()
data_length_1 = len(MyMIDI.tracks[0].MIDIdata)
MyMIDI.close()
data_length_2 = len(MyMIDI.tracks[0].MIDIdata)
self.assertEqual(data_length_1, data_length_2)
MyMIDI.tracks[0].closeTrack()
data_length_3 = len(MyMIDI.tracks[0].MIDIdata)
self.assertEqual(data_length_1, data_length_3)
def testShiftTrack(self):
track = 0
channel = 0
pitch = 100
time = 1
duration = 1
volume = 100
MyMIDI = MIDIFile(1)
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
self.assertEqual(MyMIDI.tracks[1].eventList[0].evtname, "NoteOn")
self.assertEqual(MyMIDI.tracks[1].eventList[0].pitch, pitch)
self.assertEqual(MyMIDI.tracks[1].eventList[0].tick,
MyMIDI.time_to_ticks(time))
self.assertEqual(MyMIDI.tracks[1].eventList[0].duration,
MyMIDI.time_to_ticks(duration))
self.assertEqual(MyMIDI.tracks[1].eventList[0].volume, volume)
MyMIDI.shiftTracks()
self.assertEqual(MyMIDI.tracks[1].eventList[0].tick, 0)
def testRemoveDuplicates(self):
# First notes
track = 0
channel = 0
pitch = 69
time = 0
duration = 1
volume = 64
MyMIDI = MIDIFile(1)
MyMIDI.addNote(track, channel, pitch, time, duration,
volume) # also adds a corresponding NoteOff
MyMIDI.addNote(track, channel, pitch, time, duration,
volume) # also adds a corresponding NoteOff
MyMIDI.close()
self.assertEqual(2, len(
MyMIDI.tracks[1].eventList)) # One NoteOn event, one NoteOff event
MyMIDI = MIDIFile(1)
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
pitch = 70
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
MyMIDI.close()
self.assertEqual(4, len(MyMIDI.tracks[1].eventList)
) # Two NoteOn events, two NoteOff events
# Next tempo
tempo = 60
track = 0
time = 0
MyMIDI = MIDIFile(1)
MyMIDI.addTempo(track, time, tempo)
MyMIDI.addTempo(track, time, tempo)
MyMIDI.close()
self.assertEqual(1, len(MyMIDI.tracks[0].eventList))
MyMIDI = MIDIFile(1)
MyMIDI.addTempo(track, time, tempo)
tempo = 80
MyMIDI.addTempo(track, time, tempo)
MyMIDI.close()
self.assertEqual(2, len(MyMIDI.tracks[0].eventList))
# Program Number
time = 0
track = 0
program = 10
channel = 0
MyMIDI = MIDIFile(1)
MyMIDI.addProgramChange(track, channel, time, program)
MyMIDI.addProgramChange(track, channel, time, program)
MyMIDI.close()
self.assertEqual(1, len(MyMIDI.tracks[track + 1].eventList))
MyMIDI = MIDIFile(1)
MyMIDI.addProgramChange(track, channel, time, program)
program = 11
MyMIDI.addProgramChange(track, channel, time, program)
MyMIDI.close()
self.assertEqual(2, len(MyMIDI.tracks[track + 1].eventList))
# Track Name
track = 0
time = 0
track_name = "track"
MyMIDI = MIDIFile(1)
MyMIDI.addTrackName(track, time, track_name)
MyMIDI.addTrackName(track, time, track_name)
MyMIDI.close()
self.assertEqual(1, len(MyMIDI.tracks[1].eventList))
MyMIDI = MIDIFile(1)
MyMIDI.addTrackName(track, time, track_name)
track_name = "track 2"
MyMIDI.addTrackName(track, time, track_name)
MyMIDI.close()
self.assertEqual(2, len(MyMIDI.tracks[1].eventList))
# SysEx. These are never removed
track = 0
time = 0
manufacturer = 10
MyMIDI = MIDIFile(1)
MyMIDI.addSysEx(track, time, manufacturer, struct.pack('>B', 0x01))
MyMIDI.addSysEx(track, time, manufacturer, struct.pack('>B', 0x01))
MyMIDI.close()
self.assertEqual(2, len(MyMIDI.tracks[1].eventList))
# UniversalSysEx. Same thing -- never remove
track = 0
time = 0
code = 1
subcode = 2
payload_number = 47
payload = struct.pack('>B', payload_number)
MyMIDI = MIDIFile(1)
MyMIDI.addUniversalSysEx(track,
time,
code,
subcode,
payload,
realTime=True)
MyMIDI.addUniversalSysEx(track,
time,
code,
subcode,
payload,
realTime=True)
MyMIDI.close()
self.assertEqual(2, len(MyMIDI.tracks[1].eventList))
def testWriteFile(self):
# Just to make sure the stream can be written without throwing an error.
MyMIDI = MIDIFile(1)
MyMIDI.addNote(0, 0, 100, 0, 1, 100)
with open("/tmp/test.mid", "wb") as output_file:
MyMIDI.writeFile(output_file)
def testTimeShift(self):
# With one track
MyMIDI = MIDIFile(1, adjust_origin=True)
track = 0
channel = 0
pitch = 100
time1 = 5
duration = 1
volume = 100
MyMIDI.addNote(track, channel, pitch, time1, duration, volume)
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].evtname, 'NoteOn')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].tick,
MyMIDI.time_to_ticks(0))
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].evtname, 'NoteOff')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].tick,
MyMIDI.time_to_ticks(duration))
# With two tracks
track2 = 1
MyMIDI = MIDIFile(2, adjust_origin=True)
MyMIDI.addNote(track, channel, pitch, time1, duration, volume)
time2 = 6
MyMIDI.addNote(track2, channel, pitch, time2, duration, volume)
MyMIDI.close()
# ticks have already been converted to delta ticks
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].evtname, 'NoteOn')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].tick,
MyMIDI.time_to_ticks(0))
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].evtname, 'NoteOff')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].tick,
MyMIDI.time_to_ticks(duration))
self.assertEqual(MyMIDI.tracks[2].MIDIEventList[0].evtname, 'NoteOn')
self.assertEqual(MyMIDI.tracks[2].MIDIEventList[0].tick,
MyMIDI.time_to_ticks(0 + duration))
self.assertEqual(MyMIDI.tracks[2].MIDIEventList[1].evtname, 'NoteOff')
self.assertEqual(MyMIDI.tracks[2].MIDIEventList[1].tick,
MyMIDI.time_to_ticks(0 + duration))
# Negative Time
MyMIDI = MIDIFile(1, adjust_origin=True)
track = 0
channel = 0
pitch = 100
time = -5
duration = 1
volume = 100
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].evtname, 'NoteOn')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].tick,
MyMIDI.time_to_ticks(0))
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].evtname, 'NoteOff')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].tick,
MyMIDI.time_to_ticks(0 + duration))
# Negative time, two tracks
MyMIDI = MIDIFile(2, adjust_origin=True)
track = 0
channel = 0
pitch = 100
time = -1
duration = 1
volume = 100
MyMIDI.addNote(track, channel, pitch, time, duration, volume)
track2 = 1
time2 = 0
MyMIDI.addNote(track2, channel, pitch, time2, duration, volume)
MyMIDI.close()
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].evtname, 'NoteOn')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[0].tick,
MyMIDI.time_to_ticks(0))
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].evtname, 'NoteOff')
self.assertEqual(MyMIDI.tracks[1].MIDIEventList[1].tick,
MyMIDI.time_to_ticks(1))
self.assertEqual(MyMIDI.tracks[2].MIDIEventList[0].evtname, 'NoteOn')
self.assertEqual(MyMIDI.tracks[2].MIDIEventList[0].tick,
MyMIDI.time_to_ticks(1))
self.assertEqual(MyMIDI.tracks[2].MIDIEventList[1].evtname, 'NoteOff')
self.assertEqual(MyMIDI.tracks[2].MIDIEventList[1].tick,
MyMIDI.time_to_ticks(1))
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"))
