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read metadata from pipeline decoders

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This commit is contained in:
Jakob Ketterl
2021-08-01 00:49:20 +02:00
parent f8f2740c77
commit c5a314810e
3 changed files with 53 additions and 26 deletions
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20
csdr/__init__.py
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@@ -56,6 +56,7 @@ class Dsp(DirewolfConfigSubscriber):
self.pycsdr_client_chain = None
self.pycsdr_reader = None
self.pycsdr_power_reader = None
self.pycsdr_meta_reader = None
self.buffer = None
self.samp_rate = 250000
@@ -764,6 +765,22 @@ class Dsp(DirewolfConfigSubscriber):
chain.setPowerWriter(powerBuffer)
self.pycsdr_power_reader = powerBuffer.getReader()
self.output.send_output("smeter", self.pycsdr_power_reader.read)
if self.isDigitalVoice():
metaBuffer = Buffer(Format.CHAR)
chain.setMetaWriter(metaBuffer)
self.pycsdr_meta_reader = metaBuffer.getReader()
def read_meta():
raw = self.pycsdr_meta_reader.read()
if raw is None or len(raw) == 0:
return None
else:
raw = raw.tobytes().decode("cp437")
return raw.rstrip("\n")
self.output.send_output("meta", read_meta)
return
command_base = " | ".join(chain)
@@ -864,6 +881,9 @@ class Dsp(DirewolfConfigSubscriber):
self.pycsdr_power_reader = None
self.pycsdr_client_chain.stop()
self.pycsdr_client_chain = None
if self.pycsdr_meta_reader is not None:
self.pycsdr_meta_reader.stop()
self.pycsdr_meta_reader = None
if self.process is not None:
try:
os.killpg(os.getpgid(self.process.pid), signal.SIGTERM)