The content type of a text track, represented by a value from the following list:
- 'srt': The track contains SRT (SubRip Text) content.
- 'ttml': The track contains TTML (Timed Text Markup Language) content.
- 'webvtt': The track contains WebVTT (Web Video Text Tracks) content.
- 'emsg': The track contains emsg (Event Message) content.
- 'eventstream': The track contains Event Stream content.
- 'id3': The track contains ID3 content.
- 'cea608': The track contains CEA608 content.
- 'daterange': The track contains HLS EXT-X-DATERANGE content.

Enumeration Members

cea608: "cea608"
daterange: "daterange"
emsg: "emsg"
eventstream: "eventstream"
id3: "id3"
srt: "srt"
ttml: "ttml"
webvtt: "webvtt"