Highlights

• Added support for playing SCC subtitles.
• Subtitles can now be extracted from MP4 files just like audio.

Release notes

Features

• DiscreteAudioPlugin: Added api isMaxLimitReached and isEnablePossible(id: string)
• mse:
  • Added track title block list option to filter out bad names
  • TrackExtractor.getTracks now returns VttSubtitle- (VttSubtitlePlugin), TTMLFileReference- (ImscSubtitlePlugin) and SccSubtitle (SccSubtitlePlugin) objects that can be loaded directly in the respective plugins.
• probe: Extend getMediaInfo with subtitleTrackCount, indicating the number of muxed subtitle tracks in the file
• Subtitle plugins: Added support to load subtitles asynchronous by supplying a SubtitleSource object as "src"
• SccSubtitlePlugin: Added new plugin that can be used to load SCC subtitles

Fixes

• AP Controls: Controls now shows controls for all subtitles, even when imsc subtitles are loaded
• ImscSubtitlePlugin: Improved error handling for parse errors
• ProgressivePlayer: Fixed bug in getCurrentTime resulted in frameOffset not being applied.
• TrackExtractor
  • Fixed issue that caused track to get stuck in loading state when seeking near the end
  • Fixed bug in Safari that caused audio to disappear when seeking in the video
• SubtitlePlugin: The plugin now uses <track> elements instead of .addTextTrack to avoid a Chrome bug that caused subtitles to show even though they were disabled
• VttSubtitlePlugin: Fixed issue where vtt subtitle plugin interfered with track elements not created by the plugin itself