Extracts the DVB subtitling informatio from specific table id in @descriptor.
Note: Use #gst_tag_get_language_code if you want to get the the ISO 639-1 language code from the returned ISO 639-2 one.
Table id of the entry to parse
the language code
the type of subtitling
the composition page id
the ancillary page id
%TRUE if parsing succeeded, else %FALSE.
See Implementation
Extracts the DVB subtitling informatio from specific table id in @descriptor.
Note: Use #gst_tag_get_language_code if you want to get the the ISO 639-1 language code from the returned ISO 639-2 one.