web/video.js
1
0
Fork 0
mirror of https://github.com/videojs/video.js.git synced 2024-12-02 09:11:54 +02:00
Code Releases Activity
d0b9903395
video.js/docs/tracks.md
Steve Heffernan d0b9903395 Started Adding tracks docs. 
Added example captions track.
Updated webvtt parser to support no id line in captions.
Updated webvtt parser to support no hours place in the time.
2012-03-16 15:32:48 -07:00

1.5 KiB
Raw Blame History

layout title description body_id body_class
docs HTML5 Video Text Tracks (Subtitles, Captions, Chapters) Video.js support for captions, subtitles, and chapters through the use of the HTML5 video track element. tracks docs subpage

Tracks

Text Tracks are a function of HTML5 video for providing time triggered text to the viewer. Video.js makes tracks work across all browsers. There are currently five types of tracks:

  • Subtitles: Translations of the dialogue in the video for when audio is available but not understood. Subtitles are shown over the video.
  • Captions: Transcription of the dialogue, sound effects, musical cues, and other audio information for when the viewer is deaf/hard of hearing, or the video is muted. Captions are also shown over the video.
  • Chapters: Chapter titles that are used to create navigation within the video. Typically they're in the form of a list of chapters that the viewer can click on to go to a specific chapter.
  • Descriptions (not supported yet): Text descriptions of what's happening in the video for when the video portion isn't available, because the viewer is blind, not using a screen, or driving and about to crash because they're trying to enjoy a video while driving. Descriptions are read by a screen reader or turned into a separate audio track.
  • Metadata (not supported yet): Tracks that have data meant for javascript to parse and do something with. These aren't shown to the user.

Creating the Text File

To provide Tracks require the WebVTT timed text format.