def _test_unsupported_sample_rates(self):
"""Unsupported sample rates
TODO: make the same test with a opus_decoder_init() function"""
for c in range(4):
for i in range(-7, 96000):
if i in (8000, 12000, 16000, 24000, 48000) and c in (1, 2):
continue
if i == -5:
fs = -8000
elif i == -6:
fs = sys.maxint # TODO: should be a INT32_MAX
elif i == -7:
fs = -1 * (sys.maxint - 1) # Emulation of the INT32_MIN
else:
fs = i
try:
dec = decoder.create(fs, c)
except OpusError as e:
self.assertEqual(e.code, constants.BAD_ARG)
else:
decoder.destroy(dec)
def test_create(self):
try:
dec = decoder.create(48000, 2)
except OpusError:
raise AssertionError()
else:
decoder.destroy(dec)
def test_unimplemented(self):
dec = decoder.create(48000, 2)
try:
decoder.ctl(dec, ctl.unimplemented)
except OpusError as e:
self.assertEqual(e.code, constants.UNIMPLEMENTED)
decoder.destroy(dec)
def test_unimplemented(self):
dec = decoder.create(48000, 2)
try:
decoder.ctl(dec, ctl.unimplemented)
except OpusError as e:
self.assertEqual(e.code, constants.UNIMPLEMENTED)
decoder.destroy(dec)
def _test_unsupported_sample_rates(self):
"""Unsupported sample rates
TODO: make the same test with a opus_decoder_init() function"""
for c in range(4):
for i in range(-7, 96000):
if i in (8000, 12000, 16000, 24000, 48000) and c in (1, 2):
continue
if i == -5:
fs = -8000
elif i == -6:
fs = sys.maxint # TODO: should be a INT32_MAX
elif i == -7:
fs = -1*(sys.maxint-1) # Emulation of the INT32_MIN
else:
fs = i
try:
dec = decoder.create(fs, c)
except OpusError as e:
self.assertEqual(e.code, constants.BAD_ARG)
else:
decoder.destroy(dec)
def test_create(self):
try:
dec = decoder.create(48000, 2)
except OpusError:
raise AssertionError()
else:
decoder.destroy(dec)
def test_decode(self):
"""opus_decode()"""
packet = chr((63<<2)+3)+chr(49)
for j in range(2, 51):
packet += chr(0)
dec = decoder.create(48000, 2)
try:
decoder.decode(dec, packet, 51, 960, 0)
except OpusError as e:
self.assertEqual(e.code, constants.INVALID_PACKET)
packet = chr(63<<2)+chr(0)+chr(0)
try:
decoder.decode(dec, packet, -1, 960, 0)
except OpusError as e:
self.assertEqual(e.code, constants.BAD_ARG)
try:
decoder.decode(dec, packet, 3, 60, 0)
except OpusError as e:
self.assertEqual(e.code, constants.BUFFER_TOO_SMALL)
try:
decoder.decode(dec, packet, 3, 480, 0)
except OpusError as e:
self.assertEqual(e.code, constants.BUFFER_TOO_SMALL)
try:
decoder.decode(dec, packet, 3, 960, 0)
except OpusError:
self.fail('Decode failed')
decoder.destroy(dec)
def test_decode(self):
"""opus_decode()"""
packet = chr((63 << 2) + 3) + chr(49)
for j in range(2, 51):
packet += chr(0)
dec = decoder.create(48000, 2)
try:
decoder.decode(dec, packet, 51, 960, 0)
except OpusError as e:
self.assertEqual(e.code, constants.INVALID_PACKET)
packet = chr(63 << 2) + chr(0) + chr(0)
try:
decoder.decode(dec, packet, -1, 960, 0)
except OpusError as e:
self.assertEqual(e.code, constants.BAD_ARG)
try:
decoder.decode(dec, packet, 3, 60, 0)
except OpusError as e:
self.assertEqual(e.code, constants.BUFFER_TOO_SMALL)
try:
decoder.decode(dec, packet, 3, 480, 0)
except OpusError as e:
self.assertEqual(e.code, constants.BUFFER_TOO_SMALL)
try:
decoder.decode(dec, packet, 3, 960, 0)
except OpusError:
self.fail('Decode failed')
decoder.destroy(dec)
def test_decode_float(self):
dec = decoder.create(48000, 2)
packet = chr(63 << 2) + chr(0) + chr(0)
try:
decoder.decode_float(dec, packet, 3, 960, 0)
except OpusError:
self.fail('Decode failed')
decoder.destroy(dec)
def test_decode_float(self):
dec = decoder.create(48000, 2)
packet = chr(63<<2)+chr(0)+chr(0)
try:
decoder.decode_float(dec, packet, 3, 960, 0)
except OpusError:
self.fail('Decode failed')
decoder.destroy(dec)
def test_get_nb_samples(self):
"""opus_decoder_get_nb_samples()"""
dec = decoder.create(48000, 2)
self.assertEqual(480, decoder.get_nb_samples(dec, '\x00', 1))
packet = ''.join([chr(x) for x in ((63<<2)|3, 63)])
# TODO: check for exception code
self.assertRaises(OpusError, lambda: decoder.get_nb_samples(dec, packet, 2))
decoder.destroy(dec)
def test_get_nb_samples(self):
"""opus_decoder_get_nb_samples()"""
dec = decoder.create(48000, 2)
self.assertEqual(480, decoder.get_nb_samples(dec, '\x00', 1))
packet = ''.join([chr(x) for x in ((63<<2)|3, 63)])
# TODO: check for exception code
self.assertRaises(OpusError, lambda: decoder.get_nb_samples(dec, packet, 2))
decoder.destroy(dec)
def __init__(self, untalk):
self.untalk = untalk
self.encoder = opus_encoder.create(SAMPLE_RATE, CHANNELS,
opus_constants.APPLICATION_VOIP)
self.decoder = opus_decoder.create(SAMPLE_RATE, CHANNELS)
# disable variable bitrate (VBR)
opus_encoder.ctl(self.encoder, opus_ctl.set_vbr, 0)
# configure expected jitter loss
opus_encoder.ctl(self.encoder, opus_ctl.set_packet_loss_perc,
self.untalk.loss_percentage)
# configure forward error correction (FEC)
opus_encoder.ctl(self.encoder, opus_ctl.set_inband_fec,
self.untalk.decode_fec)
def test_get_pitch(self):
dec = decoder.create(48000, 2)
i = decoder.ctl(dec, ctl.get_pitch)
self.assertIn(i, (-1, 0))
packet = chr(63<<2)+chr(0)+chr(0)
decoder.decode(dec, packet, 3, 960, False)
i = decoder.ctl(dec, ctl.get_pitch)
self.assertIn(i, (-1, 0))
packet = chr(1)+chr(0)+chr(0)
decoder.decode(dec, packet, 3, 960, False)
i = decoder.ctl(dec, ctl.get_pitch)
self.assertIn(i, (-1, 0))
decoder.destroy(dec)
def test_get_pitch(self):
dec = decoder.create(48000, 2)
i = decoder.ctl(dec, ctl.get_pitch)
self.assertIn(i, (-1, 0))
packet = chr(63 << 2) + chr(0) + chr(0)
decoder.decode(dec, packet, 3, 960, False)
i = decoder.ctl(dec, ctl.get_pitch)
self.assertIn(i, (-1, 0))
packet = chr(1) + chr(0) + chr(0)
decoder.decode(dec, packet, 3, 960, False)
i = decoder.ctl(dec, ctl.get_pitch)
self.assertIn(i, (-1, 0))
decoder.destroy(dec)
def __init__(self, fec=0):
self.chunk = 960 #2880#960#2880#960 # 20 ms at 48000
self.channels = 1 # mono
self.rate = 48000 # max rate (should this be reduced?)
self.fec = fec # fec
self.encoder = opus_encoder.create(self.rate, self.channels,
opus_constants.APPLICATION_VOIP)
opus_encoder.ctl(self.encoder, opus_ctl.set_vbr, 0) # disable vbr
opus_encoder.ctl(self.encoder, opus_ctl.set_packet_loss_perc,
2) # configure expected jitter loss
if fec:
print('FEC enabled: this may increase latency slightly.')
print(
' It will also (hopefully) compensate for any lost/delayed packets.'
)
print(' It also seems to result in slightly mushier audio.')
opus_encoder.ctl(self.encoder, opus_ctl.set_inband_fec,
1) # enable fec
self.decoder = opus_decoder.create(self.rate, self.channels)
def test_gain(self):
dec = decoder.create(48000, 2)
i = decoder.ctl(dec, ctl.get_gain)
self.assertEqual(i, 0)
try:
decoder.ctl(dec, ctl.set_gain, -32769)
except OpusError as e:
self.assertEqual(e.code, constants.BAD_ARG)
try:
decoder.ctl(dec, ctl.set_gain, 32768)
except OpusError as e:
self.assertEqual(e.code, constants.BAD_ARG)
decoder.ctl(dec, ctl.set_gain, -15)
i = decoder.ctl(dec, ctl.get_gain)
self.assertEqual(i, -15)
decoder.destroy(dec)
def test_gain(self):
dec = decoder.create(48000, 2)
i = decoder.ctl(dec, ctl.get_gain)
self.assertEqual(i, 0)
try:
decoder.ctl(dec, ctl.set_gain, -32769)
except OpusError as e:
self.assertEqual(e.code, constants.BAD_ARG)
try:
decoder.ctl(dec, ctl.set_gain, 32768)
except OpusError as e:
self.assertEqual(e.code, constants.BAD_ARG)
decoder.ctl(dec, ctl.set_gain, -15)
i = decoder.ctl(dec, ctl.get_gain)
self.assertEqual(i, -15)
decoder.destroy(dec)
def test_get_bandwidth(self):
dec = decoder.create(48000, 2)
value = decoder.ctl(dec, ctl.get_bandwidth)
self.assertEqual(value, 0)
decoder.destroy(dec)
def test_get_final_range(self):
dec = decoder.create(48000, 2)
decoder.ctl(dec, ctl.get_final_range)
decoder.destroy(dec)
def test_get_final_range(self):
dec = decoder.create(48000, 2)
decoder.ctl(dec, ctl.get_final_range)
decoder.destroy(dec)
def test_get_bandwidth(self):
dec = decoder.create(48000, 2)
value = decoder.ctl(dec, ctl.get_bandwidth)
self.assertEqual(value, 0)
decoder.destroy(dec)
RATE = 48000
INPUT_BLOCK_TIME = 0.02
INPUT_FRAMES_PER_BLOCK = int(RATE * INPUT_BLOCK_TIME)
UDP_IP = ""
UDP_PORT = 8001
MAX_BUFF_SIZE = 5
sock = socket.socket(socket.AF_INET6, socket.SOCK_DGRAM)
sock.bind(("", UDP_PORT))
audio = pyaudio.PyAudio()
streamout = audio.open(format=FORMAT,
channels=CHANNELS,
rate=RATE,
output=True,
frames_per_buffer=INPUT_FRAMES_PER_BLOCK * 5)
dec = decoder.create(RATE, CHANNELS)
buf = []
# heapq.heapify(buf)
# heapq._heapify_max(buf)
a = recvAndDecode(sock, dec, buf)
a.daemon = True
b = playOut(streamout, buf)
b.daemon = True
a.start()
b.start()
while True:
time.sleep(1)
def test_reset_state(self):
dec = decoder.create(48000, 2)
decoder.ctl(dec, ctl.reset_state)
decoder.destroy(dec)
def test_reset_state(self):
dec = decoder.create(48000, 2)
decoder.ctl(dec, ctl.reset_state)
decoder.destroy(dec)