set Subtitle
Enables the SubtitleTrack that corresponds to the trackId. A list of currently available SubtitleTracks can be retrieved via availableSubtitles. Providing null as the trackId disables subtitles.
Enables the SubtitleTrack that corresponds to the trackId. A list of currently available SubtitleTracks can be retrieved via availableSubtitles. Providing null as the trackId disables subtitles.