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Vance IngallsandClaude Fable 5
b26c27576b
* feat(engine,producer,cli): verify video comps via deferred DE init + capture p50 Closes the two biggest gaps in the first day of v0.7.38 wild data: 88% of drawElement renders (video comps initialized via probe sessions) ran with self-verification unarmed, and speedup was measurable on only 3 of 76 renders. - Deferred drawElement init: probe sessions initialize before video extraction, so they have no frame injector — ground-truth screenshots would capture black <video> boxes, and verification skipped the whole comp. DE init now stops after the gates for injector-less video comps (deInitDeferred; autoAlpha flag retracted in case no path completes it) and completeDeferredDrawElementInit finishes verification + canvas injection + worker-encode at capture time, once prepareCaptureSessionForReuse has attached the injector. Validated end-to-end: a probe-path video comp now arms 4 ground-truth frames with real video pixels (3x inf + 64.7dB) and renders drawElement verified. - capture_p50_ms: per-frame capture durations are sampled (capturePerf.frameMs; batch frames get the batch mean) and the median ships as CapturePerfSummary.p50TotalMs -> RenderPerfSummary.captureP50Ms -> render_complete capture_p50_ms. Unlike capture_avg_ms it is immune to first-frame warmup and stage-setup amortization — smoke: avg 15ms vs p50 8ms on the same render, p50 matching the measured steady-state floor. Dashboard speedup tiles can drop their frame-count floor once this ships. - video_count on render_complete: segments speedup by video-injection comps (whose per-frame gain is legitimately lower) vs pure-graphics. Canary suite 7/7; engine suite 905 passed (1 pre-existing upstream failure); tsc/oxlint/oxfmt clean. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> * fix(producer): complete deferred drawElement init on the disk capture path Review (miga): a probe-initialized video comp falling back to the disk path kept deInitDeferred and silently stayed in screenshot mode — a regression for PRODUCER_EXPERIMENTAL_FAST_CAPTURE=true renders that previously ran drawElement there. Complete the deferred init on the sequential disk path under the same explicit-opt-in test the orchestrator clamp uses; default-on renders stay on the screenshot baseline (this path has no drain-time self-verification, per the #1998 confinement rule). Validated: video comp + PRODUCER_ENABLE_STREAMING_ENCODE=false + explicit opt-in logs "(deferred drawElement init)" completion on capture_disk and renders correct video pixels. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Fable 5 <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 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