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cali.py
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cali.py
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import argparse
import os
from tqdm import tqdm
import time
import calibratesdr as cali
def main(input):
print("let's find your SDR's oscillator precision")
show_graph = input["graph"]
verbose = input["verbose"]
samplerate = input["rs"]
mode = input["m"]
if input["f"] is not None:
print("loading file...")
filename = input["f"]
if os.path.exists(filename):
data = cali.utils.load_data(filename, offset=44)
if mode == "dab":
print("starting mode: dab")
ppm = cali.dabplus.dab.get_ppm(data, samplerate=samplerate, show_graph=show_graph, verbose=verbose)
print("your sdr's precision is", ppm, "ppm")
elif mode == "dvbt":
print("starting mode: dvbt")
cali.dvbt.dvbt.main()
elif mode == "gsm":
print("starting mode: gsm")
cali.gsm.gsm.main()
else:
print("ending")
else:
print("sorry, file not found. try again.")
elif input["s"] is not None:
# scanning with your sdr
print("scanning...")
if mode == "dab":
print("starting mode: dab")
from rtlsdr import RtlSdr
filename = "tmp.dat"
device = input["rd"]
sdr = RtlSdr(device_index=device)
rs = input["rs"]
rg = input["rg"]
ns = rs * input["nsec"] #seconds
c = input["c"]
result = []
dabchannels = cali.dabplus.dab.channels()
if c == "all":
print("Scanning all channels")
for channel in tqdm(range(len(dabchannels["dab"])),
desc="Scanning…",
ascii=False,
ncols=75):
channel, block, cf, dab_snr, dab_block_detected, dab_ppm = \
cali.utils.scan_one_dab_channel(dabchannels, channel, sdr, rs, ns, rg, filename, samplerate,
show_graph, verbose)
result.append([channel, block, cf, dab_snr, dab_block_detected, dab_ppm])
else:
print("Scanning only channel #", c)
channel = int(c)
channel, block, cf, dab_snr, dab_block_detected, dab_ppm = \
cali.utils.scan_one_dab_channel(dabchannels, channel, sdr, rs, ns, rg, filename, samplerate,
show_graph, verbose)
result.append([channel, block, cf, dab_snr, dab_block_detected, dab_ppm])
# output
dab_snr_max = 0
for i in range(len(result)):
if i == 0 or dab_snr_max < result[i][3]:
dab_snr_max = result[i][3]
print("")
print("____Results_______________________________________________________________________________________")
print("# , block, freq [Hz], SNR [dB] , Prec. [ppm], offset [Hz], block [x][o][ ] & signal strength")
print("--------------------------------------------------------------------------------------------------")
for i in range(len(result)):
channel = result[i][0]
block = result[i][1]
cf = result[i][2]
dab_snr = result[i][3]
dab_block_detected = "[ ]"
if result[i][4] == 1:
dab_block_detected = "[o]"
elif result[i][4] == 2:
dab_block_detected = "[x]"
dab_ppm = result[i][5]
bar = cali.utils.signal_bar(dab_snr, dab_snr_max)
f_offset = 0.0
if dab_ppm != None:
f_offset = cf / 1000000.0 * dab_ppm
print("# {0:2d}, {1:5s}, {2:9.0f}, {3:+9.5f}, {4:+10.4f}, {5:+11.1f}, {6:4s} {7}".
format(channel, block, cf, dab_snr, dab_ppm, f_offset, dab_block_detected, bar))
else:
print("# {0:2d}, {1:5s}, {2:9.0f}, {3:+9.5f}, None, {5:+11.1f}, {6:4s} {7}".
format(channel, block, cf, dab_snr, dab_ppm, f_offset, dab_block_detected, bar))
sdr.close()
elif mode == "dvbt":
print("starting mode: dvbt")
cali.dvbt.dvbt.main()
elif mode == "gsm":
print("starting mode: gsm")
cali.gsm.gsm.main()
else:
print("ending")
if __name__ == "__main__":
my_parser = argparse.ArgumentParser()
my_parser.add_argument('-f',
action='store',
type=str,
help='select path to input file')
my_parser.add_argument('-m',
action='store',
choices=['dab', 'dvbt', 'gsm'],
help='select mode',
default='dab')
my_parser.add_argument('-s',
action='store',
choices=['rtlsdr'],
help='scan with rtlsdr',
default='rtlsdr')
my_parser.add_argument('-c',
action='store',
type=str,
help='scan by \"all\" channels, by channel number \"0,1,...n\" or by blockname',
default = 'all')
my_parser.add_argument('-rs',
action='store',
type=int,
help='file/scan samplerate',
default=2048000)
my_parser.add_argument('-rg',
action='store',
type=int,
help='scan with gain',
default=20)
my_parser.add_argument('-rd',
action='store',
type=int,
help='scan with device',
default=0)
my_parser.add_argument('-nsec',
action='store',
type=float,
help='scan for n-seconds',
default=10)
my_parser.add_argument('-gr',
'--graph',
action='store_true',
help='activate graphs',
default=False)
my_parser.add_argument('-v',
'--verbose',
action='store_true',
help='an optional argument')
# Execute parse_args()
args = my_parser.parse_args()
print(vars(args))
main(vars(args))