You can make your long form videos easier to watch and navigate by adding chapter markers to single videos or to Adaptive Video Sets. When a user plays the video, they can select the chapter markers on the video timeline (also known as the video scrubber). Doing so lets them easily navigate to their point of interest, or immediately jump to new content, demonstrations, tutorials, and so on.
The video player that is used must support the use of chapter markers.
See Add or edit a video viewer preset if you want to configure the chapter navigation cue points and chapter title pop-up text for the
Universal_HTML5_Video viewer (HTML5).
See also Add and edit Viewer Presets.
You create a chapter list for your video in much the same way that you create captions. That is, you create a WebVTT file. Note, however, that this file must be separate from any WebVTT caption file that you may also be using; you cannot combine captions and chapters into one WebVTT file.
You can use the following sample as an example of the format you use to create a WebVTT file with chapter navigation:
WEBVTT Chapter 1 00:00.000 --> 01:04.364 The bicycle store behind it all. Chapter 2 01:04.364 --> 02:00.944 Creative Cloud. Chapter 3 02:00.944 --> 03:02.937 Ease of management for a working solution. Chapter 4 03:02.937 --> 03:35.000 Cost-efficient access to rapidly evolving technology.
In the example above,
Chapter 1 is the cue identifier and is optional. The cue time of
00:00:000 --> 01:04:364 specifies the start time and end time of the chapter, in 00:00:000 format. That last three digits are milliseconds and can be left as 000, if preferred. The chapter title of
The bicycle store behind it all is the actual description of the chapter’s contents. The cue identifier, the starting cue time, and the chapter title all appear in a pop-up in the video player when the pointer is hovered over a visual cue point in the video’s timeline.
Because you are using an HTML5 video viewer, ensure that the chapter file you create follows the WebVTT (Web Video Text Tracks) standard. The chapter filename extension is .VTT. You can learn more information about the WebVTT captioning standard.
See WebVTT: The Web Video Text Tracks Format.
To add chapter markers to video:
Using a simple text editor outside Adobe Dynamic Media Classic, create your video chapter file.
For global support of video chapters in languages other than English, the WebVTT standard requires that you create separate .vtt files and calls for each language you want to support.
Save the VTT file in UTF8 encoding so you can avoid problems with character rendition in the chapter title text.
Generally, you want to name the chapter VTT file the same name as the video file, and append it with
chapters. By doing so, it can help you with automating the generation of the video URLs using your existing web content management system.
In Adobe Dynamic Media Classic, upload your WebVTT chapter file.
See Upload files.
In the Asset Library panel on the left side, navigate to the asset folder that contains the video file that you want to associate with the chapter file that you uploaded.
In the Asset Browse panel, select a single video asset, and then below the thumbnail image of the asset, select Preview > Viewer List.
In the Viewer List table, find the HTML5 viewer named Univeral_HTML5_Video, and then do one of the following:
For a pop-up video viewer experience, select Copy URL to the far right of the name.
Append the copied URL of the video with the following syntax so you can associate it with the copied URL to your caption file:
&navigation=*<full Copy URL path to the chapter navigation file .vtt>*
For an embedded video viewer experience, select Embed Code to the far right of the name.
In the Embed Code dialog box, select Copy to Clipboard.
For the HTML5
Universal_HTML5_Video viewer, append the copied embed code with the following:
videoViewer.setParam("navigation","*<full Copy URL path to the chapter navigation file .vtt>*”