help='Languages of the subtitles to download (optional) separated by commas, use --list-subs for available language tags')
downloader = optparse.OptionGroup(parser, 'Download Options')
+ downloader.add_option(
+ '-N', '--concurrent-fragments',
+ dest='concurrent_fragment_downloads', metavar='N', default=1, type=int,
+ help='Number of fragments to download concurrently (default is %default)')
downloader.add_option(
'-r', '--limit-rate', '--rate-limit',
dest='ratelimit', metavar='RATE',