activeTrackVariant
Obtain the Active Track variant option for the passed TrackVariantInfo.Type, if available.
Return
returns the active TrackVariantInfo for the given TrackVariantInfo.Type, or TrackVariantInfo.UNKNOWN if active variant is not known.
Note: This API returns correct TrackVariantInfo value only after Player.Listener.onActiveTrackVariantChanged has been triggered after either stream format change or by calling setPreferredTrackVariant.
Parameters
type
the TrackVariantInfo.Type of elementary Track for which we need active variant