Miguel Ángel
8f9ee9f55d
Playwright test that drives the real Studio UI — selects elements via the Layers panel, modifies X position, text color, and opacity — then screenshots the preview at t=0/1/2s, triggers a real render, extracts matching frames with ffmpeg, and fails if the average luma diff exceeds 0.78% of 255 (YAVG > 2.0). Also adds the GitHub Actions workflow that runs on any change touching studio, core, player, producer, engine, or cli, with diff artifact upload on failure. Supporting changes: - StudioApiAdapter.onProjectFileWrite optional callback so file writes from the files API can notify the server to invalidate its cached ETag signature - CLI adapter implements onProjectFileWrite by nulling cachedProjectSignature, ensuring the preview ETag advances after every UI edit - Playwright config, fixture project (index.html + generated assets), and asset generator script (e2e/setup/gen-assets.ts via ffmpeg)
hyperframes
CLI for creating, previewing, and rendering HTML video compositions.
Install
npm install -g hyperframes
Or use directly with npx:
npx hyperframes <command>
Requirements: Node.js >= 22, FFmpeg
Commands
init
Scaffold a new Hyperframes project from a template:
npx hyperframes init my-video
cd my-video
preview
Start the live preview studio in your browser:
npx hyperframes preview
# Studio running at http://localhost:3002
npx hyperframes preview --port 4567
render
Render a composition to MP4:
npx hyperframes render ./my-composition.html -o output.mp4
lint
Validate your Hyperframes HTML:
npx hyperframes lint ./my-composition
npx hyperframes lint ./my-composition --json # JSON output for CI/tooling
npx hyperframes lint ./my-composition --verbose # Include info-level findings
By default only errors and warnings are shown. Use --verbose to also display informational findings (e.g., external script dependency notices). Use --json for machine-readable output with errorCount, warningCount, infoCount, and a findings array.
compositions
List compositions found in the current project:
npx hyperframes compositions
benchmark
Run rendering benchmarks:
npx hyperframes benchmark ./my-composition.html
doctor
Check your environment for required dependencies (Chrome, FFmpeg, Node.js):
npx hyperframes doctor
browser
Manage the bundled Chrome/Chromium installation:
npx hyperframes browser
info
Print version and environment info:
npx hyperframes info
docs
Open the documentation in your browser:
npx hyperframes docs
upgrade
Check for updates and show upgrade instructions:
npx hyperframes upgrade
npx hyperframes upgrade --check --json # machine-readable for agents
Documentation
Full documentation: hyperframes.heygen.com/packages/cli
Related packages
@hyperframes/core— types, parsers, frame adapters@hyperframes/engine— rendering engine@hyperframes/producer— render pipeline@hyperframes/studio— composition editor UI