miga-heygenandMiga
3202f3fb87
Root cause: the per-worker capture calls in captureFrameRange (parallelCoordinator.ts) take no abort signal of their own, and only checked `signal.aborted` BEFORE starting each frame — a no-op once a worker is already awaiting an in-flight call. On WSL2, the native drawElement/BeginFrame capture call can hang indefinitely at frame 0 with no error. The DE parallel-router's existing stall watchdog (captureStreamingStage.ts) correctly fires `stallController.abort()` after HF_DE_STALL_MS, but that abort had no way to reach a worker already wedged inside a hung capture call — so executeParallelCapture's Promise.all waited forever, the render hung indefinitely, and the CLI's circuit breaker (which only runs after executeRenderJob settles) never got a chance to trip. Fix: race each per-frame capture call against the signal actually firing (raceAgainstAbort), the same "can't cancel, only race" pattern already used by the sequential capture path. Once the watchdog's abort is observed, the wedged worker rejects, executeParallelCapture settles, and the existing pinned-fallback retry / "reverted" outcome / circuit breaker machinery (already correct) runs end to end. Also widen the CLI breaker's trip condition from the literal string "reverted" to "not a clean routed success", so any future non-success outcome the observability layer records also latches the breaker instead of silently falling through. Closes #3441 Co-authored-by: Miga <noreply@anthropic.com>
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: http://localhost:3002/#project/my-video
# Server: http://localhost:3002
npx hyperframes preview --port 4567
In an interactive terminal, the preview stays attached until you press
Ctrl+C. In a non-interactive shell such as a coding-agent session, the same
command starts a managed preview that survives after the command returns. Use
--background or --foreground to choose explicitly, and manage persistent
previews with --status, --stop, --list, and --kill-all. Add --json to
managed lifecycle commands for machine-readable output. --foreground --json
prints the ready-session envelope once, then remains attached until stopped.
normalize-audio
Measure two local authored audio clips with integrated LUFS and match the target
to the unchanged reference. The command is a dry run unless --write is passed:
npx hyperframes normalize-audio --reference target-audio --target user-audio
npx hyperframes normalize-audio --reference target-audio --target user-audio --write
It updates only the target element's data-volume and refuses unsafe boosts
that exceed Studio's +12 dB ceiling or would clip.
render
Render a composition to MP4. Run from the project directory; the positional
argument is the project directory (not a file), so render the project's
index.html directly, or point at a specific composition file with -c:
npx hyperframes render -o output.mp4
npx hyperframes render -c ./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