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