Released 2022-09-13
  • Added support for playing multiple muxed audio tracks within a MP4 file.
Release notes


  • DiscreteAudioPlugin: Added track configuration option enabledCountExempt. When activated the track is not omitted by the maxEnabledTracks setting.
  • DiscreteAudioPlugin: Add setting for controlling preload attribute for created audio elements.
  • Probe: getMediaInfo now also extracts audioTrackCount from the video container.
  • TrackExtractor: New tool that can be used to play multi-track mp4.
  • VttSubtitlePlugin: VTT subtitles now support id, used to identify subtitles when toggling.


  • SegmentPlayer: Seeking to last frame now works
  • Controls: Make sure player is set before allowing controls to toggle play