An in-band metadata dispatch type is a string extracted from a media resource specifically for in-band metadata tracks. An example of a media resource that might have such tracks is a TV station streaming a broadcast on the web. Text Tracks may be used to include metadata for ad targeting, additional information such as recipe data during a cooking show, or trivia game data during a game show.
The value of this attribute could be used to attach these tracks to dedicated script modules as they are loaded.
let label = TextTrack.label;
string containing the
inBandMetadataTrackDispatchType, or an empty string.
In the following example the value of
inBandMetadataTrackDispatchType is printed to the console.
let video = document.querySelector('video'); let track = video.addTextTrack("captions", "Captions", "en"); track.mode = "showing"; console.log(track.inBandMetadataTrackDispatchType);
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