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https://github.com/heygen-com/hyperframes.git
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Miguel Ángel
43f0a2b2bb
The seek slider read duration from the player store, which was set from the iframe adapter's getDuration() — only aware of the root composition's authored data-duration. Appended sub-compositions (via Blocks panel) extend the timeline but the slider stayed capped at the original duration. Sync effectiveTimelineDuration (which accounts for all timeline elements) into the player store, and prevent adapter callbacks from overwriting a larger effective duration back down to the authored value.
@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