BDSup2Sup XML to timestamps

script.py

import xml.etree.ElementTree as ET
import math
tree = ET.parse('timestamps.xml')

in_format = tree.find('Description/Format')

fps = float(in_format.attrib['FrameRate'])

lines = tree.findall('Events/Event')

with open("timestamps-text.txt", "w") as outf:
    for (i, line) in enumerate(lines):
        (start, end) = (line.attrib['InTC'].split(':'), line.attrib['OutTC'].split(':'))

        start_ms = ".{:03d}".format(math.floor(int(start.pop()) * (1000 / (1000 * fps)) * 1000) + 1)
        end_ms = ".{:03d}".format(math.floor(int(end.pop()) * (1000 / (1000 * fps)) * 1000) + 1)

        start = ':'.join(start)
        end = ':'.join(end)

        start += start_ms
        end += end_ms
        
        outf.write("{}\n{} --> {}\n\n".format(i + 1, start, end))