63 lines
1.6 KiB
Python
63 lines
1.6 KiB
Python
'''
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Find time, filesize, or bitrate, given two of the three.
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For example:
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kbps.py --time 1:00:00 --size 2g
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kbps.py --time 1:00:00 --kbps 4660
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kbps.py --size 2g --kpbps 4660
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'''
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import argparse
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import sys
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from voussoirkit import bytestring
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from voussoirkit import hms
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def kbps(time=None, size=None, kbps=None):
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if [time, size, kbps].count(None) != 1:
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raise ValueError('Incorrect number of unknowns.')
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if time is None:
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kilobits = size / 128
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time = kilobits / kbps
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return time
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if size is None:
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kibs = kbps / 8
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size = kibs * 1024
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size *= time
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return size
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if kbps is None:
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kibs = size / 1024
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kilobits = kibs * 8
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kbps = kilobits / time
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return kbps
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def kbps_argparse(args):
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time = args.time and hms.hms_to_seconds(args.time)
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size = args.size and bytestring.parsebytes(args.size)
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kibs = args.kbps and int(args.kbps)
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result = kbps(time=time, size=size, kbps=kibs)
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if time is None:
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print(hms.seconds_to_hms(time))
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if size is None:
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print(bytestring.bytestring(size))
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if kibs is None:
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print('%d kbps' % round(result))
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def main(argv):
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parser = argparse.ArgumentParser()
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parser.add_argument('-t', '--time', dest='time', default=None)
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parser.add_argument('-s', '--size', dest='size', default=None)
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parser.add_argument('-k', '--kbps', dest='kbps', default=None)
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parser.set_defaults(func=kbps_argparse)
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args = parser.parse_args(argv)
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return args.func(args)
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if __name__ == '__main__':
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raise SystemExit(main(sys.argv[1:]))
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