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#!/usr/bin/env python3
import os.path
from src.home.camera.util import dvr_scan_timecodes
from argparse import ArgumentParser
from datetime import datetime, timedelta
DATETIME_FORMAT = '%Y-%m-%d-%H.%M.%S'
def chunks(lst, n):
for i in range(0, len(lst), n):
yield lst[i:i + n]
def time2seconds(time: str) -> int:
time, frac = time.split('.')
frac = int(frac)
h, m, s = [int(i) for i in time.split(':')]
return round(s + m*60 + h*3600 + frac/1000)
def filename_to_datetime(filename: str) -> datetime:
filename = os.path.basename(filename).replace('record_', '').replace('.mp4', '')
return datetime.strptime(filename, DATETIME_FORMAT)
if __name__ == '__main__':
parser = ArgumentParser()
parser.add_argument('--source-filename', type=str, required=True,
help='recording filename')
parser.add_argument('--timecodes', type=str, required=True,
help='timecodes')
parser.add_argument('--padding', type=int, default=2,
help='amount of seconds to add before and after each fragment')
arg = parser.parse_args()
if arg.padding < 0:
raise ValueError('invalid padding')
fragments = dvr_scan_timecodes(arg.timecodes)
file_dt = filename_to_datetime(arg.source_filename)
for fragment in fragments:
start, end = fragment
start -= arg.padding
end += arg.padding
if start < 0:
start = 0
duration = end - start
dt1 = (file_dt + timedelta(seconds=start)).strftime(DATETIME_FORMAT)
dt2 = (file_dt + timedelta(seconds=end)).strftime(DATETIME_FORMAT)
filename = f'{dt1}__{dt2}.mp4'
print(f'{start} {duration} {filename}')
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