class EegPlayerThread(threading.Thread):
def __init__(self, iterateFunc, cbIterateFunc):
# function that returns data to send
self.iterateFunc = iterateFunc
# fucntion that will be called after sending each data block
self.cbIterateFunc = cbIterateFunc
# time between each data sending
self.timeout = None
self._spinevent = threading.Event()
self._spinevent.clear()
threading.Thread.__init__(self, name="EegPlayerThread")
self.socket = EEGTransport("udp_m_cl", "224.0.0.1", 17001)
def run(self):
# endless cycle
while True:
self._spinevent.wait()
# get and send data
(size, data) = self.iterateFunc()
if size:
self.socket.sendChunked(data)
self.cbIterateFunc(size)
time.sleep(self.timeout)
def pause(self):
self._spinevent.clear()
def wakeup(self):
self._spinevent.set()
def __init__(self):
self.counter = 0;
self.is_on = False
self.is_loaded = False
self.is_recording = False
self.outfile = None
self.channels = None
self.freq = None
self.transport = EEGTransport('udp_m_cl','224.0.0.1',21000)
self.q = []
def __init__(self, iterateFunc, cbIterateFunc):
# function that returns data to send
self.iterateFunc = iterateFunc
# fucntion that will be called after sending each data block
self.cbIterateFunc = cbIterateFunc
# time between each data sending
self.timeout = None
self._spinevent = threading.Event()
self._spinevent.clear()
threading.Thread.__init__(self, name="EegPlayerThread")
self.socket = EEGTransport("udp_m_cl", "224.0.0.1", 17001)
def __init__(self, iterateFunc, cbIterateFunc):
# function that returns data to send
self.iterateFunc = iterateFunc
# fucntion that will be called after sending each data block
self.cbIterateFunc = cbIterateFunc
# time between each data sending
self.timeout = None
self.min_timeout = None
self.queue = []
self._spinevent = threading.Event()
self._spinevent.clear()
threading.Thread.__init__(self, name="EegPlayerThread")
# self.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
# self.address = ('234.0.0.1',21000)
self.transport = EEGTransport('udp_m_cl','224.0.0.1',21000)
self.transport.getTransportHeader().setEEGHeader(\
'n-points: 250,frequency: 5000, type: uint32,names: a b c')
class EegPlayerThread(threading.Thread):
def __init__(self, iterateFunc, cbIterateFunc):
# function that returns data to send
self.iterateFunc = iterateFunc
# fucntion that will be called after sending each data block
self.cbIterateFunc = cbIterateFunc
# time between each data sending
self.timeout = None
self.min_timeout = None
self.queue = []
self._spinevent = threading.Event()
self._spinevent.clear()
threading.Thread.__init__(self, name="EegPlayerThread")
# self.socket = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
# self.address = ('234.0.0.1',21000)
self.transport = EEGTransport('udp_m_cl','224.0.0.1',21000)
self.transport.getTransportHeader().setEEGHeader(\
'n-points: 250,frequency: 5000, type: uint32,names: a b c')
def run(self):
# endless cycle
while True:
self._spinevent.wait()
# get and send data
for i in range(self.queue_maxlen):
(size, data, props) = self.iterateFunc()
#print size
# if (size):
self.queue.append(data)
#if len(self.queue) == self.queue_maxlen:
# print len(self.queue)
while (len(self.queue)>0):
#self.socket.sendto(self.queue.pop(0), self.address)
d = self.queue.pop()
#print len(d), self.transport.getTransportHeader()
if props['type'] == int:
t = 'int'
else:
t = 'float'
header = 'n-channels: ' + str(props['n-channels']) + ', ' + \
'n-points: ' + str(props['n-points']) + ', ' + \
'frequency: ' + str(props['frequency']) + ', ' + \
'type: ' + t
#print header
self.transport.getTransportHeader().setEEGHeader(header)
self.transport.sendChunked(d)
# print('send ok')
# f=open('F:/out.eeg','w'); f.write(d); f.close()
# sys.exit(0)
self.cbIterateFunc(size)
time.sleep(self.timeout)
def pause(self):
self._spinevent.clear()
def wakeup(self):
self._spinevent.set()
class Eeg4mControl:
"""A class for controlling device via a Neurosoft DLL."""
def __init__(self):
self.counter = 0;
self.is_on = False
self.is_loaded = False
self.is_recording = False
self.outfile = None
self.channels = None
self.freq = None
self.transport = EEGTransport('udp_m_cl','224.0.0.1',21000)
self.q = []
def load(self):
# initialize library
# print 'Loading eeg4dll.dll...',
self.hinst_lib = LoadLibrary("eeg4dll")
self.nsdll = WinDLL("eeg4dll",handle=self.hinst_lib)
# print 'OK, ',
# set error callback
# print 'Setting error callback...',
ERRFUNC = CFUNCTYPE(None, c_int, c_int)
self.nsdll.SetErrorFunction(ERRFUNC(self.errorCallback))
self.is_loaded = True
# print 'OK'
def switchOn(self):
# print 'Trying switch on device...',
if (self.is_loaded == False):
self.load()
self.nsdll.SwitchOn.restype = POINTER(type_date_port)
# If device is not connected there will be Eeg4mError
try:
res = self.nsdll.SwitchOn(c_int(6))
except WindowsError:
raise
else:
self.is_on = True
# print 'OK'
def setEegFreq(self, freq):
if (freq == '1000'):
self.freq = freq
# self.nsdll.SetFrecEEG(c_int(0))
elif (freq == '5000'):
self.freq = freq
# self.nsdll.SetFrecEEG(c_int(1))
def transmitEeg(self,chlist):
self.counter = 0
try:
if (self.is_on == False):
self.switchOn()
except:
return False
# set frequency
if (self.freq == '1000'):
self.nsdll.SetFrecEEG(c_int(0))
elif (self.freq == '5000'):
self.nsdll.SetFrecEEG(c_int(1))
else:
raise Eeg4mError, 'Frequency not set'
f = self.nsdll.value_param_amplifier_eeg4m
channels_type = c_byte*26
channels = channels_type()
i=0
while (i<26):
channels[i] = chlist[i]
i=i+1
self.channels = chlist
print 'transmit:',
for ch in channels:
print ch,
print
f.argtypes = [c_uint,c_uint,c_uint,c_uint,c_uint,c_uint,c_uint,c_uint,channels_type]
f(0,0,0,0,0,0,0,0,channels)
# start transmit
#q = type_buffer_eeg()
#l=0
EEGFUNC = CFUNCTYPE(None, type_buffer_eeg, c_long, c_int)
self.nsdll.SetTransmitEEG(EEGFUNC(self.eegCallback))
print 'Transmit started'
return True
def transmitEp(self):
if (self.is_on == False):
self.switchOn()
self.counter = 0
def stop(self):
self.nsdll.OnStopReceive()
if (self.is_recording == True):
self.outfile.flush()
self.outfile.close()
#print 'Transmit ended, eeg4m-counter is', self.counter
self.switchOff() # Yes, do it always!
def switchOff(self):
self.nsdll.SwitchOff()
self.is_on = False
def errorCallback(self, error, type_error):
self.nsdll.return_text_error.restype = c_char_p
text = self.nsdll.return_text_error(error | (1 << 24))
tkMessageBox.showerror(_("Error"),_(text))
if (type_error == 0):
stderr.write('Error '+str(error)+' noncritical:'+text+'\n')
stderr.flush()
#raise Eeg4mError(text)
else:
stderr.write('Error '+str(error)+' critical:'+text+'\n')
stderr.flush()
#raise Eeg4mCriticalError(text)
def eegCallback(self, buf, length, time_on_bus):
n_points = 200
queue_maxlen = n_points/length
# compute channels count
n_channels = 0
index=0
#print 'channels', str(self.channels)
#print 'len of channels:',len(self.channels)
for i in range(26):
if i==10:
continue
if (self.channels[i] == 0):
continue
n_channels = n_channels + 1
#print 'n_channels: ',n_channels
#print 'length:',length
a = zeros(n_channels*length,dtype=int)
#print 'a:', a
self.counter = self.counter + 1
j=0
for i in range(26):
if i==10:
continue
if (self.channels[i]==0):
continue
jmin = j*length
jmax = jmin+length
bmin = i*2000
bmax = bmin+length
#print jmin,jmax,bmin,bmax
#print a[jmin:jmax]
#print buf[0][bmin:bmax]
a[jmin:jmax]=buf[0][bmin:bmax]
j=j+1
self.q.append(a)
#print a
if (len(self.q)>=queue_maxlen):
tosend = concatenate(self.q).tostring()
header = 'n-channels: ' + str(n_channels) + ', ' + \
'n-points: ' + str(n_points) + ', ' + \
'frequency: ' + str(5000) + ', ' + \
'type: int'
self.transport.getTransportHeader().setEEGHeader(header)
self.transport.sendChunked(tosend)
# print 'send ok'
while (len(self.q)>0):
self.q.pop()
print self.counter
if (self.is_recording == False):
return
ss = ''
for p in range(length):
s=''
for i in range(26):
if (i == 10): # referrent
continue
if (self.channels[i] == 0):
continue
s = s + '\t' + str(buf[0][i*2000+p])
ss = ss + s + '\r\n'
self.outfile.write(ss)
def epCallback(self):
pass
def record_on(self,filename):
if (self.outfile != None):
self.outfile.close()
self.outfile = open(filename,"wb")
self.is_recording = True
def record_off(self):
self.is_recording = False
if (self.outfile != None):
self.outfile.close()
self.outfile = None
#print 'tcpN_port = %i' % tcpN_port
# datablock queue
q = None
# maximum length of queue, computed from header.n_channels and n_fft_points
q_maxlen = None
# current length of queue
q_len = None
# current values of incoming data
n_channels = None
n_points = None
# Transports
xin = EEGTransport('udp_m_serv', '224.0.0.1', mcast_port)
xout = EEGTransport('udp_m_cl', '224.0.0.1', mcast_out_port)
#xout = EEGTransport('udp_m_cl', '224.0.0.1', 21001)
# FFT Library
libmyfft = CDLL("libmyfft.so")
#port = tcpN_port
addr = '0.0.0.0'
queue = Queue.Queue(0)
calc = FftCalculator(queue,xout)
calc.start()
cwt_n_points = 1024
# datablock queue
q = None
# maximum length of queue, computed from header.n_channels and cwt_n_points
q_maxlen = None
# current length of queue
q_len = None
# current values of incoming data
n_channels = None
n_points = None
# Transports
xin = EEGTransport('udp_m_serv', '224.0.0.1', 17000)
#xout = EEGTransport('udp_m_cl', '224.0.0.1', 21001)
port = 17000
addr = '0.0.0.0'
print 'Waiting for tcp connect on ' + addr + ':' + str(port)
tcpsock = socket(AF_INET, SOCK_STREAM)
tcpsock.bind((addr, port))
tcpsock.listen(10)
newsock, newaddr = tcpsock.accept()
print 'Connected: ', newsock.getsockname()
def reinit_arrays(new_n_channels, new_n_points):
import sys
sys.path.append('..')
from network.EEGTransport import *
x = EEGTransport('udp_m_serv', '224.0.0.1', 17000)
for i in xrange(4):
data = x.recvChunked()
header = x.getTransportHeader()
#print 'packet: ' + str(header.getNum()) + ' chunks: ' + str(header.getChunks()) + '\n'
#print 'header: ' + header.getEEGHeader().get_header()
sys.stderr.write('Packet: ' + str(i))
print data
x.close()
import sys
import time
sys.path.append('..')
from network.EEGTransport import *
x = EEGTransport('udp_m_cl', '224.0.0.1', 17000)
data = ''
len =100000
x.getTransportHeader().setEEGHeader('n-points: 250,frequency: 5000, type: uint32,names: a b c d e f')
for i in xrange(4):
for c in xrange(len):
data += str(c) +','
x.sendChunked(data)
print data
time.sleep(1)
x.close()
import sys
sys.path.append('..')
from network.EEGTransport import *
x = EEGTransport('tcp_serv', 'localhost', 999)
x = x.accept()
while 1:
data = x.recv(10)
if data:
print data
else:
break
x.close()
