code: def parse_timecode(cls, timecode):
          
          bfr = timecode.replace(';', ':').replace('.', ':').split(':')
          hrs = int(bfr[0])
          mins = int(bfr[1])
          secs = int(bfr[2])
          frs = int(bfr[3])
          return hrs, mins, secs, frs
docs: parses timecode string frames '00:00:00:00' or '00:00:00;00' or
          milliseconds '00:00:00:000'