getAvailableTextTracks

Description

Returns the list of available text tracks (subtitles) for the current content.

Each of the objects in the returned array have the following properties:

  • id (string): The id used to identify the track. Use it for setting the track via setTextTrack.

  • language (string): The language the text track is in, as set in the Manifest.

  • normalized (string): An attempt to translate the language property into an ISO 639-3 language code (for now only support translations from ISO 639-1 and ISO 639-2 language codes). If the translation attempt fails (no corresponding ISO 639-3 language code is found), it will equal the value of language

  • closedCaption (Boolean): Whether the track is specially adapted for the hard of hearing or not.

  • forced (Boolean): If true this text track is meant to be displayed by default if no other text track is selected.

    It is often used to clarify dialogue, alternate languages, texted graphics or location and person identification.

  • label (string|undefined): A human readable label that may be displayed in the user interface providing a choice between text tracks.

    This information is usually set only if the current Manifest contains one.

  • active (Boolean): Whether the track is the one currently active or not.

Note for multi-Period contents:
This method will only return the available tracks of the Period that is currently playing.
In DirectFile mode (see loadVideo options), if there is no supported tracks in the file or no track management API in the browser this method will return an empty Array.

Syntax

const textTracks = player.getAvailableTextTracks();
  • return value Array.<Object>

getAvailableTextTracks

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