public static boolean isTimecodeLink(String link) {
        return link != null && link.matches(TIMECODE_LINK_REGEX.pattern());
    }
@Test
    public void testIsTimecodeLink() {
        assertFalse(ShownotesCleaner.isTimecodeLink(null));
        assertFalse(ShownotesCleaner.isTimecodeLink("http://antennapod/timecode/123123"));
        assertFalse(ShownotesCleaner.isTimecodeLink("antennapod://timecode/"));
        assertFalse(ShownotesCleaner.isTimecodeLink("antennapod://123123"));
        assertFalse(ShownotesCleaner.isTimecodeLink("antennapod://timecode/123123a"));
        assertTrue(ShownotesCleaner.isTimecodeLink("antennapod://timecode/123"));
        assertTrue(ShownotesCleaner.isTimecodeLink("antennapod://timecode/1"));
    }