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grab sample_rate and center_freq from filename if missing #200

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merged 1 commit into from
Sep 9, 2024
Merged

grab sample_rate and center_freq from filename if missing #200

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16 changes: 16 additions & 0 deletions apps/iridium-extractor
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Original file line number Diff line number Diff line change
Expand Up @@ -3,6 +3,7 @@
import time
import getopt
import sys
import re
import threading
import os.path
import argparse
Expand Down Expand Up @@ -285,6 +286,21 @@ if __name__ == "__main__":
if fmt in sample_formats:
fmt = sample_formats[fmt]

# grab things from filename as fallback
if sample_rate is None and (g := re.search(r"-s(\d+(\.\d+)?(e[+-]\d+)?)-", filename)):
sample_rate = int(float(g.group(1)))

if args.file_info is None and (g := re.search(r"-t(\d{14}(\+\d{4})?)\.", filename)):
try:
import datetime
dt = datetime.datetime.strptime(g.group(1), "%Y%m%d%H%M%S" + "%z" * bool(g.group(2)))
args.file_info = f'i-{dt.timestamp():.20g}-t1'
except ValueError:
print("Couldn't parse timestamp in filename.", file=sys.stderr)

if center is None and (g := re.search(r"-f(\d+(\.\d+)?(e[+-]\d+)?)-", filename)):
center = int(float(g.group(1)))

if args.file_info is None:
if offline:
args.file_info = os.path.splitext(os.path.basename(filename))[0]
Expand Down
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