The playback time when the subtitle should be hidden.
Optional
htmlThe textual content prepared to be put into a html element.
Optional
imageData-URL containing the image data.
Optional
positionOnly relevant for CEA-captions, provides information about where the cue should be positioned on a grid of 15 character rows times 32 columns.
See https://dvcs.w3.org/hg/text-tracks/raw-file/default/608toVTT/608toVTT.html#positioning-in-cea-608 for detailed explanation.
Optional
regionThe region in which the subtitle should be displayed.
Will be filled with information of the region attribute in TTML subtitle cues
Optional
regionThe style information of the region in which this subtitle should be displayed.
Will be filled with the style information provided in the head of the TTML document if it matches the current cue's region attribute.
The playback time when the subtitle should be rendered.
The id of the associated subtitle track.
The textual content of this subtitle.
The timestamp (in milliseconds) when this event was fired.
Event type.
Optional
vttOptions for WebVTT subtitle styling and positioning, including region settings.
Event which is fired when a subtitle cue