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https://github.com/heygen-com/hyperframes.git
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Miguel Angel Simon Sierra
b82105ac0e
The load fixture gave every clip its own source, so it could not reproduce the request amplification a real project produces: opening a 273-clip project issues 337 media requests for 79 files on disk, one track.mp3 seven-plus times. A gate built on the old shape would measure nothing. Add mediaSourceCount/mediaClipCount, independently controllable, with clips round-robining over the sources so every source is reused at least seven times. Sources are real, browser-decodable media generated deterministically: 32x32 solid PNGs, one-second 8 kHz silent WAVs, and a checked-in 1,684-byte H.264 clip each source varies with an ignored trailing free box, so no two sources are byte-identical and no content-addressed cache can collapse them. Media defaults to off, so existing zero-media generation is unchanged.
@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