got_packet()
# do some stuff with data maybe before sticking it into playback_queue
timestamp = get_timestamp(data)
frame = numpy.fromstring(data[4:], dtype = dtype)
BUFFER[timestamp, :] = frame
HAVE_BUFFER[timestamp] = True
print 'got frame of len ', len(data)
print 'timestamp is ', timestamp
except:
traceback.print_exc()
t = threading.Thread(target = forever_receive_from_udp)
t.setDaemon(True)
t.start()
playback_stream = OutputStream(samplerate=8000, blocksize=800, dtype='int32', channels=1)
playback_stream.start()
playback_queue = Queue()
def forever_write_to_output():
while True:
try:
playback_stream.write(playback_queue.get())
except:
traceback.print_exc()
t = threading.Thread(target = forever_write_to_output)
t.setDaemon(True)
t.start()
# now write something which receives udp packets and sticks
timestamp = get_timestamp(data)
frame = numpy.fromstring(data[4:], dtype=dtype)
BUFFER[timestamp, :] = frame
HAVE_BUFFER[timestamp] = True
print 'got frame of len ', len(data)
print 'timestamp is ', timestamp
except:
traceback.print_exc()
t = threading.Thread(target=forever_receive_from_udp)
t.setDaemon(True)
t.start()
playback_stream = OutputStream(samplerate=8000,
blocksize=800,
dtype='int32',
channels=1)
playback_stream.start()
playback_queue = Queue()
def forever_write_to_output():
while True:
try:
playback_stream.write(playback_queue.get())
except:
traceback.print_exc()
t = threading.Thread(target=forever_write_to_output)
t.setDaemon(True)
play audio frames on callback
pysoundcard
server which forwards all udp packets from one ip, port to everyone connected to it via udp
erasure codes later if time permits
'''
from pysoundcard import InputStream, OutputStream, continue_flag
import time
"""Loop back five seconds of audio data."""
output = OutputStream(samplerate=44100, blocksize=16)
output.start()
def callback(in_data, time_info, status):
output.write(in_data*4)
return continue_flag
s = InputStream(samplerate=44100, blocksize=16, callback=callback)
s.start()
time.sleep(5)
s.stop()
output.stop()
