pub unsafe extern "C" fn gst_mpegts_descriptor_parse_dvb_teletext_idx(
descriptor: *const GstMpegtsDescriptor,
idx: c_uint,
language_code: *mut *mut c_char,
teletext_type: *mut GstMpegtsDVBTeletextType,
magazine_number: *mut u8,
page_number: *mut u8
) -> gboolean