openwebrx-clone/owrx/pocsag.py
2021-09-06 20:00:14 +02:00

39 lines
1.1 KiB
Python

from csdr.module import ThreadModule
from pycsdr.types import Format
import pickle
import logging
logger = logging.getLogger(__name__)
class PocsagParser(ThreadModule):
def getInputFormat(self) -> Format:
return Format.CHAR
def getOutputFormat(self) -> Format:
return Format.CHAR
def run(self):
while self.doRun:
data = self.reader.read()
if data is None:
self.doRun = False
else:
for frame in self.parse(data.tobytes()):
self.writer.write(pickle.dumps(frame))
def parse(self, raw):
for line in raw.split(b"\n"):
if not len(line):
continue
try:
fields = line.decode("ascii", "replace").split(";")
meta = {v[0]: "".join(v[1:]) for v in map(lambda x: x.split(":"), fields) if v[0] != ""}
if "address" in meta:
meta["address"] = int(meta["address"])
meta["mode"] = "Pocsag"
yield meta
except Exception:
logger.exception("Exception while parsing Pocsag message")