def read(self):
# delay setrun() until the last moment, so that
# all other parameters have likely been set.
if self.sdr.running == False:
self.sdr.setrun()
self.cardlock.acquire()
bufbuf = self.bufbuf
cardcount = self.cardcount
self.bufbuf = [ ]
self.cardlock.release()
buf_time = self.starttime + cardcount / float(self.sdrrate)
if len(bufbuf) == 0:
return [ numpy.array([]), buf_time ]
buf1 = numpy.concatenate(bufbuf)
# XXX maybe should be moved to sdrip.py?
if self.sdr.mode == "usb":
buf2 = weakutil.iq2usb(buf1) # I/Q -> USB
elif self.sdr.mode == "fm":
[ buf2, junk ] = self.fm.demod(buf1) # I/Q -> FM
else:
sys.stderr.write("weakaudio: SDRIP unknown mode %s\n" % (self.sdr.mode))
sys.exit(1)
buf3 = self.resampler.resample(buf2)
buf4 = buf3.astype(numpy.float32) # save some space.
return [ buf4, buf_time ]
def read(self):
# delay setrun() until the last moment, so that
# all other parameters have likely been set.
if self.sdr.running == False:
self.sdr.setrun()
self.cardlock.acquire()
bufbuf = self.bufbuf
cardcount = self.cardcount
self.bufbuf = [ ]
self.cardlock.release()
buf_time = self.starttime + cardcount / float(self.sdrrate)
if len(bufbuf) == 0:
return [ numpy.array([]), buf_time ]
buf1 = numpy.concatenate(bufbuf)
# XXX maybe should be moved to sdrip.py?
if self.sdr.mode == "usb":
buf2 = weakutil.iq2usb(buf1) # I/Q -> USB
elif self.sdr.mode == "fm":
[ buf2, junk ] = self.fm.demod(buf1) # I/Q -> FM
else:
sys.stderr.write("weakaudio: SDRIP unknown mode %s\n" % (self.sdr.mode))
sys.exit(1)
buf3 = self.resampler.resample(buf2)
buf4 = buf3.astype(numpy.float32) # save some space.
return [ buf4, buf_time ]
def read(self):
[buf, buf_time] = self.sdr.readiq()
buf = weakutil.iq2usb(buf) # I/Q -> USB
buf = self.resampler.resample(buf)
return [buf, buf_time]
def read(self):
[ buf, buf_time ] = self.sdr.readiq()
buf = weakutil.iq2usb(buf) # I/Q -> USB
buf = self.resampler.resample(buf)
return [ buf, buf_time ]
def postprocess(self, buf1):
if len(buf1) == 0:
return numpy.array([])
buf = weakutil.iq2usb(buf1) # I/Q -> USB
buf = self.resampler.resample(buf)
# no matter how I set its RF or IF gain,
# the SDR-IQ generates peaks around 145000,
# or I and Q values of 65535. cut this down
# so application doesn't think the SDR-IQ is clipping.
buf = buf / 10.0
return buf
def postprocess(self, buf1):
if len(buf1) == 0:
return numpy.array([])
if self.sdr.mode == "usb":
buf2 = weakutil.iq2usb(buf1) # I/Q -> USB
elif self.sdr.mode == "fm":
[buf2, junk] = self.fm.demod(buf1) # I/Q -> FM
else:
sys.stderr.write("weakaudio: SDRIP unknown mode %s\n" %
(self.sdr.mode))
sys.exit(1)
buf3 = self.resampler.resample(buf2)
return buf3
def read(self):
self.cardlock.acquire()
bufbuf = self.bufbuf
cardcount = self.cardcount
self.bufbuf = [ ]
self.cardlock.release()
buf_time = self.starttime + cardcount / float(self.sdrrate)
if len(bufbuf) == 0:
return [ numpy.array([]), buf_time ]
buf = numpy.concatenate(bufbuf)
buf = weakutil.iq2usb(buf) # I/Q -> USB
buf = self.resampler.resample(buf)
# no matter how I set its RF or IF gain,
# the SDR-IQ generates peaks around 145000,
# or I and Q values of 65535. cut this down
# so application doesn't think the SDR-IQ is clipping.
buf = buf / 10.0
return [ buf, buf_time ]
def read(self):
self.cardlock.acquire()
bufbuf = self.bufbuf
cardcount = self.cardcount
self.bufbuf = [ ]
self.cardlock.release()
buf_time = self.starttime + cardcount / float(self.sdrrate)
if len(bufbuf) == 0:
return [ numpy.array([]), buf_time ]
buf = numpy.concatenate(bufbuf)
buf = weakutil.iq2usb(buf) # I/Q -> USB
buf = self.resampler.resample(buf)
# no matter how I set its RF or IF gain,
# the SDR-IQ generates peaks around 145000,
# or I and Q values of 65535. cut this down
# so application doesn't think the SDR-IQ is clipping.
buf = buf / 10.0
return [ buf, buf_time ]
def readusb(self):
iq = self.readiq()
usb = weakutil.iq2usb(iq)
return usb
def readusb(self): iq = self.readiq() usb = weakutil.iq2usb(iq) return usb