Re: Cue IDs vs Chapters

A cue ID is a unique way to reference the cue, either via CSS or via
JavaScript.
A WebVTT chapters file is a subset of WebVTT where the cue represents an
interesting point to the viewer. The cue text can be used to show a
description of this point to the viewer. Chapters are generally implemented
by JS-based web players and not natively and given that there's no codified
display for chapters, a player could conceivably display the cue ID in
conjunction with the cue text for each chapter.

You can see an example implementation of chapters in Video.js here:
https://videojs.com/advanced/?video=elephantsdream. Once you click play,
look for the "chapters" menu button; its icon is a stack of a dot and a
dash.

Hope this helps.
Gary, current WebVTT Editor.

On Tue, Jan 5, 2021 at 3:29 AM Eric Negron <enegron@smartling.com> wrote:

>
> What’s the difference between a cue identifier (similar to SRT)
> https://w3c.github.io/webvtt/#introduction-other-features
>
> And a so-called “Chapter”?
> https://w3c.github.io/webvtt/#introduction-chapters
>
>
>
>