def setupService(self, mode, frequency, source):
logger.debug("setting up service {0} on frequency {1}".format(
mode, frequency))
# TODO selecting outputs will need some more intelligence here
if mode == "packet":
output = AprsServiceOutput(frequency)
elif mode == "js8":
output = Js8ServiceOutput(frequency)
else:
output = WsjtServiceOutput(frequency)
d = Dsp(output)
d.nc_port = source.getPort()
center_freq = source.getProps()["center_freq"]
d.set_offset_freq(frequency - center_freq)
d.set_center_freq(center_freq)
modeObject = Modes.findByModulation(mode)
d.set_demodulator(modeObject.get_modulation())
d.set_bandpass(modeObject.get_bandpass())
d.set_secondary_demodulator(mode)
d.set_audio_compression("none")
d.set_samp_rate(source.getProps()["samp_rate"])
d.set_temporary_directory(CoreConfig().get_temporary_directory())
d.set_service()
d.start()
return d
def __init__(self, active_dsp, mode_str: str):
self.read_fn = None
self.doRun = True
self.dsp = active_dsp
self.writers = []
mode = Modes.findByModulation(mode_str)
if mode is None or not isinstance(mode, AudioChopperMode):
raise ValueError(
"Mode {} is not an audio chopper mode".format(mode_str))
self.profile_source = mode.get_profile_source()
(self.outputReader, self.outputWriter) = Pipe()
super().__init__()
def render_table(self):
bookmarks = Bookmarks.getSharedInstance().getBookmarks()
emptyText = """
<tr class="emptytext"><td colspan="4">
No bookmarks in storage. You can add new bookmarks using the buttons below.
</td></tr>
"""
return """
<table class="table" data-modes='{modes}'>
<tr>
<th>Name</th>
<th class="frequency">Frequency</th>
<th>Modulation</th>
<th>Actions</th>
</tr>
{bookmarks}
</table>
""".format(
bookmarks="".join(self.render_bookmark(b) for b in bookmarks) if bookmarks else emptyText,
modes=json.dumps({m.modulation: m.name for m in Modes.getAvailableModes()}),
)
def render_input(self, value, errors):
def render_mode(m):
return """
<option value={mode}>{name}</option>
""".format(
mode=m.modulation,
name=m.name,
)
return """
<input type="hidden" class="{classes}" id="{id}" name="{id}" value="{value}" {disabled}>
<div class="inputs" style="display:none;">
<select class="form-control form-control-sm">{options}</select>
<input class="form-control form-control-sm" type="number" step="1">
</div>
""".format(id=self.id,
classes=self.input_classes(errors),
value=html.escape(value),
options="".join(
render_mode(m) for m in Modes.getAvailableModes()
if isinstance(m, WsjtMode)),
disabled="disabled" if self.disabled else "")
def __init__(self, handler, sdrSource):
self.handler = handler
self.sdrSource = sdrSource
self.props = PropertyStack()
# current audio mode. should be "audio" or "hd_audio" depending on what demodulatur is in use.
self.audioOutput = None
# local demodulator properties not forwarded to the sdr
# ensure strict validation since these can be set from the client
# and are used to build executable commands
validators = {
"output_rate": "int",
"hd_output_rate": "int",
"squelch_level": "num",
"secondary_mod": ModulationValidator(),
"low_cut": "num",
"high_cut": "num",
"offset_freq": "int",
"mod": ModulationValidator(),
"secondary_offset_freq": "int",
"dmr_filter": "int",
}
self.localProps = PropertyValidator(
PropertyLayer().filter(*validators.keys()), validators)
self.props.addLayer(0, self.localProps)
# properties that we inherit from the sdr
self.props.addLayer(
1,
self.sdrSource.getProps().filter(
"audio_compression",
"fft_compression",
"digimodes_fft_size",
"samp_rate",
"center_freq",
"start_mod",
"start_freq",
"wfm_deemphasis_tau",
"digital_voice_codecserver",
),
)
# defaults for values that may not be set
self.props.addLayer(
2,
PropertyLayer(
output_rate=12000,
hd_output_rate=48000,
digital_voice_codecserver="",
).readonly())
self.chain = ClientDemodulatorChain(self._getDemodulator("nfm"),
self.props["samp_rate"],
self.props["output_rate"],
self.props["hd_output_rate"],
self.props["audio_compression"],
self)
self.readers = {}
if "start_mod" in self.props:
mode = Modes.findByModulation(self.props["start_mod"])
if mode:
self.setDemodulator(mode.get_modulation())
if isinstance(mode, DigitalMode):
self.setSecondaryDemodulator(mode.modulation)
if mode.bandpass:
bpf = [mode.bandpass.low_cut, mode.bandpass.high_cut]
self.chain.setBandpass(*bpf)
else:
# TODO modes should be mandatory
self.setDemodulator(self.props["start_mod"])
if "start_freq" in self.props and "center_freq" in self.props:
self.chain.setFrequencyOffset(self.props["start_freq"] -
self.props["center_freq"])
else:
self.chain.setFrequencyOffset(0)
self.subscriptions = [
self.props.wireProperty("audio_compression",
self.setAudioCompression),
self.props.wireProperty("fft_compression",
self.chain.setSecondaryFftCompression),
self.props.wireProperty("fft_voverlap_factor",
self.chain.setSecondaryFftOverlapFactor),
self.props.wireProperty("fft_fps", self.chain.setSecondaryFftFps),
self.props.wireProperty("digimodes_fft_size",
self.setSecondaryFftSize),
self.props.wireProperty("samp_rate", self.chain.setSampleRate),
self.props.wireProperty("output_rate", self.chain.setOutputRate),
self.props.wireProperty("hd_output_rate",
self.chain.setHdOutputRate),
self.props.wireProperty("offset_freq",
self.chain.setFrequencyOffset),
self.props.wireProperty("center_freq",
self.chain.setCenterFrequency),
self.props.wireProperty("squelch_level",
self.chain.setSquelchLevel),
self.props.wireProperty("low_cut", self.chain.setLowCut),
self.props.wireProperty("high_cut", self.chain.setHighCut),
self.props.wireProperty("mod", self.setDemodulator),
self.props.wireProperty("dmr_filter", self.chain.setSlotFilter),
self.props.wireProperty("wfm_deemphasis_tau",
self.chain.setWfmDeemphasisTau),
self.props.wireProperty("secondary_mod",
self.setSecondaryDemodulator),
self.props.wireProperty("secondary_offset_freq",
self.chain.setSecondaryFrequencyOffset),
]
# wire power level output
buffer = Buffer(Format.FLOAT)
self.chain.setPowerWriter(buffer)
self.wireOutput("smeter", buffer)
# wire meta output
buffer = Buffer(Format.CHAR)
self.chain.setMetaWriter(buffer)
self.wireOutput("meta", buffer)
# wire secondary FFT
buffer = Buffer(self.chain.getSecondaryFftOutputFormat())
self.chain.setSecondaryFftWriter(buffer)
self.wireOutput("secondary_fft", buffer)
# wire secondary demodulator
buffer = Buffer(Format.CHAR)
self.chain.setSecondaryWriter(buffer)
self.wireOutput("secondary_demod", buffer)
self.startOnAvailable = False
self.sdrSource.addClient(self)