joachim/openwebrx-clone
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add scaffolding for pocsag decoding

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This commit is contained in:
Jakob Ketterl
2020-01-06 22:08:17 +01:00
parent 4859cb5db8
commit 12e5d2f6f3
6 changed files with 22 additions and 7 deletions
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14
csdr/csdr.py
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@ -244,6 +244,11 @@ class dsp(object):
if self.last_decimation != 1.0:
chain += ["csdr fractional_decimator_ff {last_decimation}"]
return chain + ["csdr convert_f_s16", "direwolf -c {direwolf_config} -r {audio_rate} -t 0 -q d -q h - 1>&2"]
elif which == "pocsag":
chain += ["csdr fmdemod_quadri_cf"]
if self.last_decimation != 1.0:
chain += ["csdr fractional_decimator_ff {last_decimation}"]
return chain + ["fsk_demodulator", "pocsag_decoder"]
def set_secondary_demodulator(self, what):
if self.get_secondary_demodulator() == what:
@ -448,6 +453,8 @@ class dsp(object):
return 48000
elif self.isWsjtMode():
return 12000
elif self.isPocsag():
return 12000
return self.get_output_rate()
def isDigitalVoice(self, demodulator=None):
@ -465,6 +472,11 @@ class dsp(object):
demodulator = self.get_secondary_demodulator()
return demodulator == "packet"
def isPocsag(self, demodulator=None):
if demodulator is None:
demodulator = self.get_secondary_demodulator()
return demodulator == "pocsag"
def set_output_rate(self, output_rate):
if self.output_rate == output_rate:
return
@ -528,7 +540,7 @@ class dsp(object):
def set_squelch_level(self, squelch_level):
self.squelch_level = squelch_level
# no squelch required on digital voice modes
actual_squelch = -150 if self.isDigitalVoice() or self.isPacket() else self.squelch_level
actual_squelch = -150 if self.isDigitalVoice() or self.isPacket() or self.isPocsag() else self.squelch_level
if self.running:
self.modification_lock.acquire()
self.squelch_pipe_file.write("%g\n" % (self.convertToLinear(actual_squelch)))