mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-09-05 17:30:50 +00:00
Miguel Ángel
1aaf89ce70
The studio player's RAF loop in useTimelinePlayer notified the playhead position via liveTime.notify(time) before checking the duration limit. When adapter.getTime() returned a value past the composition's data-duration (due to timing drift or delayed duration calculation), the playhead would visually overshoot — showing e.g. 0:19 on a 0:10 composition. The web player component already had this clamping (playback-state.ts line 42, direct-timeline-clock.ts line 56), but the studio player's forward loop was missing it. Fix: clamp time to dur before notifying, matching the pattern already used in the web player: Math.min(rawTime, dur) when dur > 0.
@hyperframes/studio
Browser-based composition editor UI for Hyperframes. Provides a visual timeline, code editor, and live preview for building video compositions.
Install
npm install @hyperframes/studio
What it does
The studio is a React application with:
- Visual timeline — drag, resize, and arrange elements on tracks
- Code editor — edit HTML and GSAP scripts with CodeMirror (syntax highlighting, autocomplete)
- Live preview — see changes in real time as you edit
- Composition inspector — view and modify element properties
Development
The studio is embedded in the hyperframes preview command. To develop the studio UI itself:
cd packages/studio
bun run dev # Start Vite dev server
bun run build # Build for production
bun run typecheck # Type-check
Tech stack
- React 18/19, Zustand (state management)
- CodeMirror 6 (editor)
- Tailwind CSS (styling)
- Vite (bundler)
- Phosphor Icons
Documentation
Full documentation: hyperframes.heygen.com/packages/studio
Related packages
@hyperframes/core— types and parsers used by the editorhyperframes— CLI that serves the studio viahyperframes preview