HTML Oudio/Video DOM video Tracks Eiendom

❮ HTML oudio/video DOM-verwysing

Voorbeeld

Kry die aantal beskikbare videosnitte:

var vid = document.getElementById("myVideo");
alert(vid.videoTracks.length);

Definisie en gebruik

Die videoTracks-eienskap gee 'n VideoTrackList-objek terug.

Die VideoTrackList-objek verteenwoordig die beskikbare videosnitte vir die video.

Elke beskikbare videosnit word deur 'n VideoTrack-objek voorgestel.


Blaaierondersteuning

Property
videoTracks Not supported Not supported Not supported Not supported Not supported

Sintaksis

video.videoTracks

Terugkeerwaarde

Type Description
VideoTrackList Object Represents the available video tracks for the video.

VideoTrackList Object:

  • videoTracks.length - get the number of video tracks available in the video
  • videoTracks.getTrackById(id) - get VideoTrack object by id
  • videoTracks[index] - get VideoTrack object by index
  • videoTracks.selectedIndex - get the index of the current VideoTrack object

Note: The first available VideoTrack object is index 0

VideoTrack Object Represents a video track.

VideoTrack Object Properties:

  • id - get the id of the video track
  • kind - get the type of the video track (can be: "alternative", "captions", "main", "sign", "subtitles", "commentary", or "" (empty string)) 
  • label - get the label of the video track
  • language - get the language of the video track
  • selected - get or set if the track is active (true|false)

❮ HTML oudio/video DOM-verwysing