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log2lrc.py
Executable file
62
log2lrc.py
Executable file
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#!/usr/bin/env python3
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#
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# Copyright 2022 Harald Barth
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#
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# This converts serial logs with timestamps from the
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# Arduino IDE to LRC format.
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#
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# This is free software: you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation, either version 3 of the License, or
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# (at your option) any later version.
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#
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# It is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with CommandStation. If not, see <https://www.gnu.org/licenses/>.
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# Usage: log2lrc.py HH:MM:SS HH:MM:SS filename
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# logtime videotime
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# The resulting timestamps will be adjusted by logtime - videotime.
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# logtime > videotime
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import sys
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import datetime
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import fileinput
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import re
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timediff = datetime.datetime.strptime('00:00:00','%H:%M:%S')
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def convert(timestr):
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times=timestr.split('.',1) # remove fractions of second
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timestamp_obj=datetime.datetime.strptime(times[0],'%H:%M:%S')
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timestamp_obj=timestamp_obj-timediff # calculate offset
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timestr='{0:%H:%M:%S}'.format(timestamp_obj)
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timestr='%s.%s' % (timestr, times[1][0:2]) # add fractions of second, 2 digits
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return timestr
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def main(argv):
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global timediff
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fromtime_str=sys.argv[1]
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fromtime_obj=datetime.datetime.strptime(fromtime_str,'%H:%M:%S')
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totime_str=sys.argv[2]
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totime_obj=datetime.datetime.strptime(totime_str,'%H:%M:%S')
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sys.argv=sys.argv[2:]
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timediff = fromtime_obj - totime_obj
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for line in fileinput.input():
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line = re.split('\s+', line, 1)
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if (len(line) > 1 and len(line[1]) > 1):
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l = line[1].replace('\n','')
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l = l.replace('\r','')
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l = re.sub('^-> ','',l)
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print("[%s]%s" % (convert(line[0]),l))
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if __name__ == "__main__":
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main(sys.argv)
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