def tempo_clock(mocker):
tempo_clock = TempoClock()
tempo_clock.slop = 0.001
mock = mocker.patch.object(TempoClock, "get_current_time")
mock.return_value = 0.0
yield tempo_clock
tempo_clock.stop()
def test_clock_skew():
tempo_clock = TempoClock()
tempo_clock.slop = 0.0001
all_stats = []
for _ in range(5):
store = []
for _ in range(20):
delta = random.random() / 100
tempo_clock.schedule(
callback,
schedule_at=random.random(),
args=[store],
kwargs={
"limit": 100,
"delta": delta,
"time_unit": TimeUnit.SECONDS
},
)
tempo_clock.start()
time.sleep(5.0)
tempo_clock.stop()
stats = calculate_skew(store)
print(" ".join(f"{key}: {value:f}" for key, value in stats.items()))
all_stats.append(stats)
threshold = tempo_clock.slop * 1.5
assert all(stats["median"] < threshold for stats in all_stats)
def test_realtime_02(limit, bpm_schedule, expected):
store = []
tempo_clock = TempoClock()
tempo_clock.cue(callback,
quantization="1/4",
args=[store],
kwargs=dict(limit=limit))
for schedule_at, beats_per_minute in bpm_schedule:
tempo_clock.schedule_change(
beats_per_minute=beats_per_minute,
schedule_at=schedule_at,
time_unit=TimeUnit.SECONDS,
)
tempo_clock.start()
time.sleep(2)
tempo_clock.stop()
actual = [(
desired_moment.offset,
desired_moment.seconds - tempo_clock._state.initial_seconds,
) for current_moment, desired_moment, event in store]
assert actual == expected
def __init__(self, pattern, server=None, event_template=None, clock=None):
import supriya.patterns
clock = clock or TempoClock.default()
if event_template is None:
event_template = supriya.patterns.NoteEvent()
elif issubclass(event_template, supriya.patterns.Event):
event_template = event_template()
self._clock = clock
self._cumulative_time = 0
self._event_template = event_template
self._iterator = None
self._pattern = pattern
self._server = server or supriya.realtime.Server.default()
self._uuids = {}
self._event_id = None
def test_realtime_01():
store = []
tempo_clock = TempoClock()
assert not tempo_clock.is_running
assert tempo_clock.beats_per_minute == 120
tempo_clock.start()
assert tempo_clock.is_running
assert tempo_clock.beats_per_minute == 120
tempo_clock.schedule(callback, schedule_at=0.0, args=[store])
time.sleep(4)
tempo_clock.stop()
assert not tempo_clock.is_running
assert tempo_clock.beats_per_minute == 120
assert len(store) == 5
assert [
desired_moment.offset
for current_moment, desired_moment, event in store
] == [0.0, 0.25, 0.5, 0.75, 1.0]
def test_realtime_01(schedule, start_clock_first, expected):
"""
Start clock, then schedule
"""
store = []
tempo_clock = TempoClock()
assert not tempo_clock.is_running
assert tempo_clock.beats_per_minute == 120
if start_clock_first:
tempo_clock.start()
assert tempo_clock.is_running
assert tempo_clock.beats_per_minute == 120
if schedule:
tempo_clock.schedule(callback, schedule_at=0.0, args=[store])
else:
tempo_clock.cue(callback, quantization="1/4", args=[store])
if not start_clock_first:
tempo_clock.start()
assert tempo_clock.is_running
assert tempo_clock.beats_per_minute == 120
time.sleep(4)
tempo_clock.stop()
assert not tempo_clock.is_running
assert tempo_clock.beats_per_minute == 120
assert len(store) == 5
actual = [
desired_moment.offset
for current_moment, desired_moment, event in store
]
assert actual == expected
def __init__(self):
DawNode.__init__(self)
self._clock = TempoClock()
self._node = Synth(synthdef=self._build_synthdef(), name="transport")