In case we set videoNode.subtitleConfig = {trackName: “eia608/1”}
https://developer.roku.com/docs/developer-program/getting-started/architecture/content-metadata.md
Then the videNode.availableSubtitleTracks returns an array with one element for the videos without CC.
How to identificate is video has CC track or not?
Test stream: http://pmd205604tn.download.theplatform.com.edgesuite.net/Demo_Sub_Account_2/411/535/ED_HD__571970.m3u8
In the manifest there no “#EXT-X-MEDIA” key but the videNode.availableSubtitleTracks returns an array with one element
