def test_encoder_stereo_48khz(self):
encoder = get_encoder(OPUS_CODEC)
self.assertTrue(isinstance(encoder, OpusEncoder))
frame = AudioFrame(channels=2,
data=b'\x00\x00' * 2 * 960,
sample_rate=48000)
data = encoder.encode(frame)
self.assertEqual(data, b'\xfc\xff\xfe')
def test_encoder_stereo_8khz(self):
encoder = get_encoder(PCMU_CODEC)
self.assertTrue(isinstance(encoder, PcmuEncoder))
frame = AudioFrame(channels=2,
data=b'\x00\x00' * 2 * 160,
sample_rate=8000)
data = encoder.encode(frame)
self.assertEqual(data, b'\xff' * 160)
def test_encoder_mono_8hz(self):
encoder = get_encoder(PCMA_CODEC)
self.assertTrue(isinstance(encoder, PcmaEncoder))
frame = AudioFrame(channels=1,
data=b'\x00\x00' * 160,
sample_rate=8000)
data = encoder.encode(frame)
self.assertEqual(data, b'\xd5' * 160)
def test_encoder_mono_8khz(self):
encoder = get_encoder(OPUS_CODEC)
self.assertTrue(isinstance(encoder, OpusEncoder))
frame = AudioFrame(channels=1,
data=b'\x00\x00' * 160,
sample_rate=8000,
timestamp=0)
data = encoder.encode(frame)
self.assertEqual(data, b'\xfc\xff\xfe')
def test_encoder_stereo_48khz(self):
encoder = get_encoder(PCMA_CODEC)
self.assertTrue(isinstance(encoder, PcmaEncoder))
frame = AudioFrame(channels=2,
data=b'\x00\x00' * 2 * 960,
sample_rate=48000,
timestamp=0)
data = encoder.encode(frame)
self.assertEqual(data, b'\xd5' * 160)
async def recv(self):
# as we are reading audio from a file and not using a "live" source,
# we need to control the rate at which audio is sent
if self.last:
now = time.time()
await asyncio.sleep(self.last + AUDIO_PTIME - now)
self.last = time.time()
return AudioFrame(channels=self.reader.getnchannels(),
data=self.reader.readframes(self.frames_per_packet),
sample_rate=self.reader.getframerate())
async def recv(self):
self.last = await pause(self.last, 0.02)
return AudioFrame(
channels=self.reader.getnchannels(),
data=self.reader.readframes(160),
sample_rate=self.reader.getframerate())
