74 lines
1.4 KiB
Python
74 lines
1.4 KiB
Python
from csdr.chain import Chain
|
|
from abc import ABC, ABCMeta, abstractmethod
|
|
from pycsdr.modules import Writer
|
|
|
|
|
|
class FixedAudioRateChain(ABC):
|
|
@abstractmethod
|
|
def getFixedAudioRate(self) -> int:
|
|
pass
|
|
|
|
|
|
class FixedIfSampleRateChain(ABC):
|
|
@abstractmethod
|
|
def getFixedIfSampleRate(self) -> int:
|
|
pass
|
|
|
|
|
|
class DialFrequencyReceiver(ABC):
|
|
@abstractmethod
|
|
def setDialFrequency(self, frequency: int) -> None:
|
|
pass
|
|
|
|
|
|
# marker interface
|
|
class HdAudio:
|
|
pass
|
|
|
|
|
|
class MetaProvider(ABC):
|
|
@abstractmethod
|
|
def setMetaWriter(self, writer: Writer) -> None:
|
|
pass
|
|
|
|
|
|
class SlotFilterChain(ABC):
|
|
@abstractmethod
|
|
def setSlotFilter(self, filter: int) -> None:
|
|
pass
|
|
|
|
|
|
class SecondarySelectorChain(ABC):
|
|
def getBandwidth(self) -> float:
|
|
pass
|
|
|
|
|
|
class DeemphasisTauChain(ABC):
|
|
@abstractmethod
|
|
def setDeemphasisTau(self, tau: float) -> None:
|
|
pass
|
|
|
|
|
|
class BaseDemodulatorChain(Chain):
|
|
def supportsSquelch(self) -> bool:
|
|
return True
|
|
|
|
def setSampleRate(self, sampleRate: int) -> None:
|
|
pass
|
|
|
|
|
|
class SecondaryDemodulator(Chain):
|
|
def supportsSquelch(self) -> bool:
|
|
return True
|
|
|
|
def setSampleRate(self, sampleRate: int) -> None:
|
|
pass
|
|
|
|
|
|
class ServiceDemodulator(SecondaryDemodulator, FixedAudioRateChain, metaclass=ABCMeta):
|
|
pass
|
|
|
|
|
|
class DemodulatorError(Exception):
|
|
pass
|