openwebrx-clone/csdr/chain/m17.py

31 lines
920 B
Python

from csdr.chain.demodulator import BaseDemodulatorChain, FixedIfSampleRateChain, FixedAudioRateChain, MetaProvider
from csdr.module.m17 import M17Module
from pycsdr.modules import FmDemod, Limit, Convert, Writer
from pycsdr.types import Format
from digiham.modules import DcBlock
class M17(BaseDemodulatorChain, FixedIfSampleRateChain, FixedAudioRateChain, MetaProvider):
def __init__(self):
self.module = M17Module()
workers = [
FmDemod(),
DcBlock(),
Limit(),
Convert(Format.FLOAT, Format.SHORT),
self.module,
]
super().__init__(workers)
def getFixedIfSampleRate(self) -> int:
return 48000
def getFixedAudioRate(self) -> int:
return 8000
def supportsSquelch(self) -> bool:
return False
def setMetaWriter(self, writer: Writer) -> None:
self.module.setMetaWriter(writer)