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CasbaLandCasbaL
e5eeeef972
The error handler called cleanup(), which sets video.src = "" and calls load(). Clearing src itself fires another error event, re-entering the handler at event-loop speed — every pass allocating a React update via setFailed(true). The seeked path triggers the same loop: its cleanup provokes the synthetic error right after a successful frame extract. Detach the error listener inside cleanup() and ignore the synthetic empty-src error. Instrumentation on a real session measured ~475k src assignments/second and ~8.6 MB/s of update allocations before the fix. Fixes #4036 Co-authored-by: CasbaL <26603379+CasbaL@users.noreply.github.com>
@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 19, Zustand 4/5 (state management; development uses Zustand 5)
- 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