openwebrx-clone/owrx/service/chain.py
2021-09-23 18:43:41 +02:00

24 lines
901 B
Python

from csdr.chain import Chain
from csdr.chain.selector import Selector
from csdr.chain.demodulator import BaseDemodulatorChain, ServiceDemodulator
from pycsdr.types import Format
class ServiceDemodulatorChain(Chain):
def __init__(self, demod: BaseDemodulatorChain, secondaryDemod: ServiceDemodulator, sampleRate: int, frequencyOffset: int):
self.selector = Selector(sampleRate, secondaryDemod.getFixedAudioRate(), withSquelch=False)
self.selector.setFrequencyOffset(frequencyOffset)
workers = [self.selector]
# primary demodulator is only necessary if the secondary does not accept IQ input
if secondaryDemod.getInputFormat() is not Format.COMPLEX_FLOAT:
workers += [demod]
workers += [secondaryDemod]
super().__init__(workers)
def setBandPass(self, lowCut, highCut):
self.selector.setBandpass(lowCut, highCut)