45 lines
1.1 KiB
Python
Executable File
45 lines
1.1 KiB
Python
Executable File
#!/usr/bin/python3
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import sys
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import time
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import adsblib
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if len(sys.argv) != 3:
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print('Usage: %s <host> <port>' % sys.argv[0])
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print('Fetching samples...')
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advertised_mhz = None
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start_time = None
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start_timestamp = None
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last_timestamp = None
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for i, event in enumerate(adsblib.GetEvents(sys.argv[1], sys.argv[2])):
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advertised_mhz = event.get('mlat_timestamp_mhz', advertised_mhz)
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if 'mlat_timestamp' not in event:
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continue
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if not start_time:
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start_time = time.time()
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start_timestamp = event['mlat_timestamp']
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if last_timestamp:
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if event['mlat_timestamp'] < last_timestamp:
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print('\rERROR: timestamp went backwards (%d -> %d)\x1b[K' %
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(last_timestamp, event['mlat_timestamp']))
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last_timestamp = event['mlat_timestamp']
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if i % 1000 == 0 and start_time and advertised_mhz:
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time_diff = time.time() - start_time
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value_diff = event['mlat_timestamp'] - start_timestamp
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measured_mhz = value_diff / time_diff / 1000000
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print(
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'\r%d samples, %d seconds, advertised: %d MHz, measured: %d MHz\x1b[K' %
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(i, time_diff, advertised_mhz, measured_mhz),
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end='', flush=True)
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print()
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