class FMAPRSDemodulator(gr.hier_block2, ExportedState):
implements(IDemodulator)
def __init__(self,
mode,
input_rate=0,
aprs_information=None,
context=None):
assert input_rate > 0
gr.hier_block2.__init__(
self,
str(mode) + ' (FM + Multimon-NG) demodulator',
gr.io_signature(1, 1, gr.sizeof_gr_complex * 1),
gr.io_signature(1, 1, gr.sizeof_float * 1),
)
self.mode = mode
self.input_rate = input_rate
# FM demod
# TODO: Retry telling the NFMDemodulator to have its output rate be pipe_rate instead of using a resampler. Something went wrong when trying that before.
self.fm_demod = NFMDemodulator(
mode='NFM',
input_rate=input_rate,
no_audio_filter=True, # don't remove CTCSS tone
tau=None) # no deemphasis
assert self.fm_demod.get_output_type().get_kind() == 'MONO'
fm_audio_rate = self.fm_demod.get_output_type().get_sample_rate()
# Subprocess
self.mm_demod = APRSDemodulator(aprs_information=aprs_information)
mm_audio_rate = self.mm_demod.get_input_type().get_sample_rate()
# Output
self.connect(self, self.fm_demod,
make_resampler(fm_audio_rate, mm_audio_rate),
self.mm_demod, self)
def state_def(self, callback):
super(FMAPRSDemodulator, self).state_def(callback)
# TODO make this possible to be decorator style
callback(BlockCell(self, 'mm_demod'))
def can_set_mode(self, mode):
return False
def get_half_bandwidth(self):
return self.fm_demod.get_half_bandwidth()
def get_output_type(self):
return self.mm_demod.get_output_type()
@exported_value()
def get_band_filter_shape(self):
return self.fm_demod.get_band_filter_shape()
class FMAPRSDemodulator(gr.hier_block2, ExportedState):
implements(IDemodulator)
def __init__(self, mode, input_rate=0, aprs_information=None, context=None):
assert input_rate > 0
gr.hier_block2.__init__(
self, str(mode) + ' (FM + Multimon-NG) demodulator',
gr.io_signature(1, 1, gr.sizeof_gr_complex * 1),
gr.io_signature(1, 1, gr.sizeof_float * 1),
)
self.mode = mode
self.input_rate = input_rate
# FM demod
# TODO: Retry telling the NFMDemodulator to have its output rate be pipe_rate instead of using a resampler. Something went wrong when trying that before.
self.fm_demod = NFMDemodulator(
mode='NFM',
input_rate=input_rate,
no_audio_filter=True, # don't remove CTCSS tone
tau=None) # no deemphasis
assert self.fm_demod.get_output_type().get_kind() == 'MONO'
fm_audio_rate = self.fm_demod.get_output_type().get_sample_rate()
# Subprocess
self.mm_demod = APRSDemodulator(
aprs_information=aprs_information)
mm_audio_rate = self.mm_demod.get_input_type().get_sample_rate()
# Output
self.connect(
self,
self.fm_demod,
make_resampler(fm_audio_rate, mm_audio_rate),
self.mm_demod,
self)
def state_def(self, callback):
super(FMAPRSDemodulator, self).state_def(callback)
# TODO make this possible to be decorator style
callback(BlockCell(self, 'mm_demod'))
def can_set_mode(self, mode):
return False
def get_half_bandwidth(self):
return self.fm_demod.get_half_bandwidth()
def get_output_type(self):
return self.mm_demod.get_output_type()
@exported_value()
def get_band_filter_shape(self):
return self.fm_demod.get_band_filter_shape()
class MultimonNGDemodulator(gr.hier_block2, ExportedState): implements(IDemodulator) def __init__(self, mode, input_rate=0, audio_rate=0, context=None): assert input_rate > 0 gr.hier_block2.__init__( self, str(mode) + ' (Multimon-NG) demodulator', gr.io_signature(1, 1, gr.sizeof_gr_complex * 1), # TODO: Add generic support for demodulators with no audio output gr.io_signature(2, 2, gr.sizeof_float * 1), ) self.mode = mode self.input_rate = input_rate # FM demod self.fm_demod = NFMDemodulator( mode='NFM', input_rate=input_rate, audio_rate=pipe_rate, tau=None) # no deemphasis # Subprocess self.process = SubprocessSink( args=['multimon-ng', '-t', 'raw', '-a', 'AFSK1200', '-A', '-v', '10', '-'], #args=['python', '../play16bit.py'], itemsize=gr.sizeof_short) # Output converter = blocks.float_to_short(vlen=1, scale=int_scale) self.connect( self, self.fm_demod, converter, self.process) # Dummy sink for useless stereo output of demod self.connect((self.fm_demod, 1), blocks.null_sink(gr.sizeof_float)) # Audio copy output resampler = make_resampler(pipe_rate, audio_rate) self.connect(converter, blocks.short_to_float(vlen=1, scale=int_scale), resampler) #self.connect(self.fm_demod, resampler) self.connect(resampler, (self, 0)) self.connect(resampler, (self, 1)) def can_set_mode(self, mode): return False def get_half_bandwidth(self): return self.fm_demod.get_half_bandwidth() @exported_value() def get_band_filter_shape(self): return self.fm_demod.get_band_filter_shape()
class FMAPRSDemodulator(gr.hier_block2, ExportedState):
implements(IDemodulator)
def __init__(self, mode, input_rate=0, context=None):
assert input_rate > 0
assert context is not None
gr.hier_block2.__init__(
self, str(mode) + ' (FM + Multimon-NG) demodulator',
gr.io_signature(1, 1, gr.sizeof_gr_complex * 1),
gr.io_signature(1, 1, gr.sizeof_float * 1),
)
self.mode = mode
self.input_rate = input_rate
# FM demod
# TODO: Retry telling the NFMDemodulator to have its output rate be pipe_rate instead of using a resampler. Something went wrong when trying that before. Same thing is done in dsd.py
self.fm_demod = NFMDemodulator(
mode='NFM',
input_rate=input_rate,
no_audio_filter=True, # don't remove CTCSS tone
tau=None) # no deemphasis
assert self.fm_demod.get_output_type().get_kind() == 'MONO'
fm_audio_rate = self.fm_demod.get_output_type().get_sample_rate()
# Subprocess
self.mm_demod = APRSDemodulator(context=context)
mm_audio_rate = self.mm_demod.get_input_type().get_sample_rate()
# Output
self.connect(
self,
self.fm_demod,
make_resampler(fm_audio_rate, mm_audio_rate),
self.mm_demod,
self)
def can_set_mode(self, mode):
return False
def get_half_bandwidth(self):
return self.fm_demod.get_half_bandwidth()
def get_output_type(self):
return self.mm_demod.get_output_type()
@exported_block()
def get_mm_demod(self):
return self.mm_demod
@exported_value()
def get_band_filter_shape(self):
return self.fm_demod.get_band_filter_shape()
class DSDDemodulator(gr.hier_block2, ExportedState):
implements(IDemodulator)
def __init__(self, mode, input_rate=0, context=None):
assert input_rate > 0
gr.hier_block2.__init__(
self, type(self).__name__,
gr.io_signature(1, 1, gr.sizeof_gr_complex),
gr.io_signature(1, 1, gr.sizeof_float))
# TODO: Retry telling the NFMDemodulator to have its output rate be pipe_rate instead of using a resampler. Something went wrong when trying that before. Same thing is done in multimon.py
self.__fm_demod = NFMDemodulator(
mode='NFM',
input_rate=input_rate,
no_audio_filter=True, # don't remove CTCSS tone
tau=None) # no deemphasis
assert self.__fm_demod.get_output_type().get_kind() == 'MONO'
fm_audio_rate = self.__fm_demod.get_output_type().get_sample_rate()
self.__output_type = SignalType(kind='MONO', sample_rate=8000)
self.connect(
self,
self.__fm_demod,
make_resampler(fm_audio_rate, _demod_rate),
dsd_block_ff(),
self)
@exported_block()
def get_fm_demod(self):
return self.__fm_demod
def can_set_mode(self, mode):
return False
def get_output_type(self):
return self.__output_type
def get_half_bandwidth(self):
return self.__fm_demod.get_half_bandwidth()
@exported_value()
def get_band_filter_shape(self):
return self.__fm_demod.get_band_filter_shape()
