The id of the media track that is used to identify and set the track.
The text used to represent this track to the user (e.g. in the UI).
OptionalmetadataOptional custom metadata about the track. This is currently only supported for DASH manifests, where these are populated from SupplementalProperty elements.
OptionalroleThe optional roles of the track.
Returns the available video qualities.
Definition of a video track.