47 lines
1.5 KiB
Python
47 lines
1.5 KiB
Python
from csdr.chain import Chain
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from pycsdr.modules import FmDemod, Agc, Writer
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from pycsdr.types import Format
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from digiham.modules import DstarDecoder, DcBlock, FskDemodulator, GfskDemodulator, DigitalVoiceFilter, MbeSynthesizer, NarrowRrcFilter, NxdnDecoder
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from digiham.ambe import Modes
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class DigihamChain(Chain):
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def __init__(self, codecserver: str = ""):
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if codecserver is None:
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codecserver = ""
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workers = [
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FmDemod(),
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DcBlock(),
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self.fskDemodulator,
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self.decoder,
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MbeSynthesizer(self.mbeMode, codecserver),
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DigitalVoiceFilter(),
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self.agc
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]
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super().__init__(*workers)
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def setMetaWriter(self, writer: Writer):
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self.decoder.setMetaWriter(writer)
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class Dstar(DigihamChain):
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def __init__(self, codecserver: str = ""):
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self.fskDemodulator = FskDemodulator(samplesPerSymbol=10)
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self.decoder = DstarDecoder()
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self.mbeMode = Modes.DStarMode
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self.agc = Agc(Format.SHORT)
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self.agc.setMaxGain(30)
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self.agc.setInitialGain(3)
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super().__init__(codecserver)
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class Nxdn(DigihamChain):
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def __init__(self, codecserver: str = ""):
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self.fskDemodulator = GfskDemodulator(samplesPerSymbol=20)
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self.decoder = NxdnDecoder()
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self.mbeMode = Modes.NxdnMode
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self.agc = Agc(Format.SHORT)
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self.agc.setMaxGain(30)
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self.agc.setInitialGain(3)
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super().__init__(codecserver)
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