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#!/usr/local/bin/python3
"""Shifts a subtitle by a fixed number of seconds."""
import datetime
import srt_tools.utils
import logging
log = logging.getLogger(__name__)
def parse_args():
examples = {
"Make all subtitles 5 seconds later": "srt fixed-timeshift --seconds 5",
"Make all subtitles 5 seconds earlier": "srt fixed-timeshift --seconds -5",
}
parser = srt_tools.utils.basic_parser(description=__doc__, examples=examples)
parser.add_argument(
"--seconds", type=float, required=True, help="how many seconds to shift"
)
return parser.parse_args()
def scalar_correct_subs(subtitles, seconds_to_shift):
td_to_shift = datetime.timedelta(seconds=seconds_to_shift)
for subtitle in subtitles:
subtitle.start += td_to_shift
subtitle.end += td_to_shift
yield subtitle
def main():
args = parse_args()
logging.basicConfig(level=args.log_level)
srt_tools.utils.set_basic_args(args)
corrected_subs = scalar_correct_subs(args.input, args.seconds)
output = srt_tools.utils.compose_suggest_on_fail(corrected_subs, strict=args.strict)
try:
args.output.write(output)
except (UnicodeEncodeError, TypeError): # Python 2 fallback
args.output.write(output.encode(args.encoding))
if __name__ == "__main__": # pragma: no cover
main()
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