TypeType 1.2.1

TypeType 1.2.1 improves SABR playback stability, especially after seeks and browser lifecycle transitions. This release also includes additional recovery logic for livestreams and several mobile interface improvements.

Playback

• fix Safari and iOS playback failures after SponsorBlock skips
• prevent delayed lifecycle events from restarting an obsolete MSE playback loop after a seek
• improve repeated, buffered and SponsorBlock seeks without unnecessarily replacing the active playback session
• recover expired SABR sessions automatically
• preserve media and playback state across fullscreen, Picture-in-Picture, orientation and background transitions
• keep the same player instance while complete video metadata finishes loading
• preserve the selected playback speed during temporary player transitions
• update the MSE runtime to @typetype/mse@0.1.42

Livestreams

• recover bounded gaps between live SABR sequences
• prevent repeated protected responses without media from buffering indefinitely
• reset the recovery budget when media, playback position or generation progresses
• improve recovery when the live playback window advances
• preserve the active playback session during recoverable live interruptions

Mobile And PWA

• stabilize the watch layout in mobile landscape mode
• improve recovery after backgrounding, screen-off and orientation changes
• preserve playback through fullscreen and Picture-in-Picture transitions
• make history removal easier to use on touch devices

Validation

Playback was validated on beta with:

• Safari and an installed WebKit PWA
• a Chromium-based mobile PWA
• automatic SponsorBlock skips
• repeated forward and backward seeks
• fullscreen and orientation changes
• background, screen-off and foreground recovery
• Picture-in-Picture transitions
• VOD and livestream SABR playback
• multiple fresh videos and playback sessions

Thanks

Thx to @Toastienergy, @BuggyPasta, @jerkiz and @coral-hungus for the Safari, iOS and SponsorBlock reports and testing, and to @hugoghx for the detailed livestream traces.