openwebrx-clone/owrx/m17.py
Jakob Ketterl f3b05c6318 re-add m17
2021-09-07 14:45:52 +02:00

43 lines
1.2 KiB
Python

from csdr.module import AutoStartModule
from pycsdr.types import Format
from subprocess import Popen, PIPE
import threading
class M17Module(AutoStartModule):
def __init__(self):
self.process = None
super().__init__()
def getInputFormat(self) -> Format:
return Format.SHORT
def getOutputFormat(self) -> Format:
return Format.SHORT
def start(self):
self.process = Popen(["m17-demod"], stdin=PIPE, stdout=PIPE)
threading.Thread(target=self.pump(self.reader.read, self.process.stdin.write)).start()
threading.Thread(target=self.pump(self.process.stdout.read, self.writer.write)).start()
def stop(self):
if self.process is not None:
self.process.terminate()
self.process.wait()
self.process = None
self.reader.stop()
def pump(self, read, write):
def copy():
while True:
data = None
try:
data = read()
except ValueError:
pass
if data is None or isinstance(data, bytes) and len(data) == 0:
break
write(data)
return copy