def stop_when_empty_test(self):
config.frame_rate = 4
config.block_size = 2
def source_mono():
for i in range(0, 3):
yield numpy.ones((1, 1)) * 1 * (i + 1)
mixer = stream.mixer(1, stop_when_empty=False)
numpy.testing.assert_array_equal(next(mixer), [
[0],
[0]
])
mixer.plug(source_mono())
numpy.testing.assert_array_equal(next(mixer), [
[1],
[2]
])
numpy.testing.assert_array_equal(next(mixer), [
[3],
[0]
])
numpy.testing.assert_array_equal(next(mixer), [
[0],
[0]
])
def schedule_plug_test(self):
config.frame_rate = 4
config.block_size = 4
def source_stereo():
for i in range(0, 2):
yield numpy.ones((2, 2)) * 0.1 * (i + 1)
def source_mono():
for i in range(0, 3):
yield numpy.ones((3, 1)) * 0.01 * (i + 1)
mixer = stream.mixer(2)
mixer.plug(source_mono())
mixer.clock.run_after(1.5, mixer.plug, args=[source_stereo()])
numpy.testing.assert_array_equal(next(mixer), [
[0.01, 0], [0.01, 0], [0.01, 0], [0.02, 0]
])
numpy.testing.assert_array_equal(next(mixer), [
[0.02, 0], [0.02, 0]
])
numpy.testing.assert_array_equal(next(mixer), [
[0.1 + 0.03, 0.1],
[0.1 + 0.03, 0.1],
[0.2 + 0.03, 0.2],
[0.2, 0.2]
])
self.assertRaises(StopIteration, next, mixer)
def unplug_test(self):
config.frame_rate = 4
config.block_size = 2
def source_stereo():
for i in range(0, 3):
yield numpy.ones((1, 2)) * 1 * (i + 1)
def source_mono():
for i in range(0, 3):
yield numpy.ones((3, 1)) * 0.01 * (i + 1)
mixer = stream.mixer(2)
src1 = source_mono()
src2 = source_stereo()
mixer.plug(src2)
mixer.plug(src1)
numpy.testing.assert_array_equal(next(mixer), [
[1 + 0.01, 1], [2 + 0.01, 2]
])
mixer.unplug(src2)
numpy.testing.assert_array_equal(next(mixer), [
[0.01, 0], [0.02, 0]
])
numpy.testing.assert_array_equal(next(mixer), [
[0.02, 0], [0.02, 0]
])
mixer.unplug(src1)
self.assertRaises(StopIteration, next, mixer)
def dynamic_plug_test(self):
config.frame_rate = 4
config.block_size = 2
def source_stereo1():
for i in range(0, 3):
yield numpy.ones((1, 2)) * 1 * (i + 1)
def source_stereo2():
for i in range(0, 2):
yield numpy.ones((2, 2)) * 0.1 * (i + 1)
def source_mono1():
for i in range(0, 3):
yield numpy.ones((3, 1)) * 0.01 * (i + 1)
mixer = stream.mixer(2)
mixer.plug(source_stereo1())
mixer.plug(source_mono1())
numpy.testing.assert_array_equal(next(mixer), [
[1 + 0.01, 1],
[2 + 0.01, 2]
])
numpy.testing.assert_array_equal(next(mixer), [
[3 + 0.01, 3],
[0.02, 0]
])
numpy.testing.assert_array_equal(next(mixer), [
[0.02, 0],
[0.02, 0]
])
mixer.plug(source_stereo2())
numpy.testing.assert_array_equal(next(mixer), [
[0.1 + 0.03, 0.1],
[0.1 + 0.03, 0.1]
])
numpy.testing.assert_array_equal(next(mixer), [
[0.2 + 0.03, 0.2],
[0.2, 0.2]
])
self.assertRaises(StopIteration, next, mixer)