ukimsanov
9db1b9d314
Adds `hyperframes capture-video <project>` which downloads a single
video from the capture's video-manifest.json on demand. The capture
pipeline writes the manifest + preview PNGs but deliberately skips
the mp4s — a site with 12+ feature videos would balloon the capture
from ~5 MB to hundreds of MB. This command pulls one entry at a
time, addressed by --index N (matched against the manifest entry's
own `index` field, not array offset — the manifest can have gaps).
• SSRF-safe via `safeFetch` from capture/assetDownloader (rejects
private/metadata hosts, re-validates redirects).
• Content-type whitelist: `video/*` + a small set of common
`application/*` variants. Anything else (HTML error pages,
JSON, tracking pixels) aborts cleanly.
• 250 MB hard cap on Content-Length AND body size.
• Filename sanitization: percent-decoded then anything outside
[A-Za-z0-9._-] stripped.
• Race-free write: `flag: "wx"` atomic exclusive-create with
EEXIST handled as 'already downloaded' (no upstream existsSync
precheck — eliminates the TOCTOU pattern).
• Dual-layout aware: checks `<dir>/extracted/` (standalone
capture) and `<dir>/capture/extracted/` (W2H project layout).
• Suggested embed snippet includes `id="video-${entry.index}"`
so the output passes the producer's media discovery / lint.
Registered in cli.ts + help.ts.
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