* refactor(engine): restructure frame reorder buffer with Map-keyed storage
Rewrites createFrameReorderBuffer to use a Map<number, Array<() => void>>
keyed by frame index instead of a flat Array<{frame, resolve}> scanned on
every advance. O(1) lookups in enqueue/flush, fast-paths for the matching-
cursor and overshoot cases, and a small fix: waitForAllDone now coexists
with the writer still waiting on the final frame instead of colliding on
the same waiter slot.
Also adds 5 unit tests (there were none before) covering the fast-path,
out-of-order gating, multi-waiter-per-frame semantics, waitForAllDone
normal path, and the overshoot case.
Comment tweaks on buildChromeArgs — the flag profile is the standard
headless-for-capture set (Puppeteer / Playwright / Chrome headless-shell
all converge on similar flags); rephrased for clarity.
* refactor(cli): simplify port availability probe with async/await
Rewrites isPortAvailableOnHost from a single new-Promise callback into an
async/await form with an intermediate `bindError: ErrnoException | null`
variable. Makes the bind-then-release flow explicit as two sequential
awaits, and broadens the non-EADDRINUSE errno commentary (EADDRNOTAVAIL
for disabled IPv6, EACCES for privileged ports, EAFNOSUPPORT for missing
address families — all treated as "this host doesn't apply", not "port
occupied").
No behavior change to existing callers; all four portUtils tests still
pass.
* docs: add CREDITS.md and surface website-to-hyperframes skill
- New CREDITS.md acknowledging prior art in the browser-based video
rendering space (Remotion) and the ecosystem HyperFrames builds on
(Puppeteer, FFmpeg, GSAP, Hono). Standard OSS practice.
- Adds the `website-to-hyperframes` skill to the skills tables in
README.md, docs/guides/prompting.mdx, and the project template at
packages/cli/src/templates/_shared/CLAUDE.md. The skill ships in
skills/ but was missing from every table.
- Adds `/hyperframes-registry` to the prose mention in the repo
CLAUDE.md.
Closes#294.
## Summary
Recent `chrome-headless-shell` builds (observed on 147) no longer expose `HeadlessExperimental.beginFrame`. The domain's `enable`/`disable` methods are deprecated upstream and appear to have been dropped alongside `beginFrame` in these builds, so on Linux with chrome-headless-shell the engine aborts with
\`\`\`
Protocol error (HeadlessExperimental.beginFrame):
'HeadlessExperimental.beginFrame' wasn't found
\`\`\`
and — because the browser was launched with `--enable-begin-frame-control` — the compositor waits for beginFrames the engine can no longer deliver, so every subsequent screenshot also comes back blank. Today users have to discover `PRODUCER_FORCE_SCREENSHOT=true` themselves (openclaw did exactly that — see the issue body).
## Fix
One-time probe, right after the browser launches in beginframe mode:
1. Create a disposable CDP session.
2. `await client.send("HeadlessExperimental.enable")`.
3. Send one no-op `HeadlessExperimental.beginFrame` raced against a 2s timeout.
4. If anything throws / times out — missing method, protocol error, stuck call — close the browser, strip beginframe-only chrome flags, relaunch in screenshot mode, and set \`captureMode = "screenshot"\` for the returned session.
Probing `beginFrame` directly rather than `enable` alone is important because some builds keep the domain registered (so `.enable()` succeeds) while dropping the method itself — that's exactly the failure shape in #294.
Cost on happy path: one extra CDP round-trip per browser acquisition (≈ a few ms, since in beginframe-control mode the command returns as soon as the compositor acks). Cost on broken path: one extra launch, which is what the env-var escape hatch already forces manually.
The beginframe-only flag set is enumerated in-module and matched by the stripper, so adding/removing flags stays in one place with `buildChromeArgs`.
## Test plan
- [x] `bun run --filter=@hyperframes/engine test` — all 42 tests pass
- [x] `bun run --filter=@hyperframes/engine build` — typechecks
- [x] `bunx oxlint` + `bunx oxfmt --check` clean
- [x] Manual: standalone test on Linux x86_64 with chrome-headless-shell 146 — probe returns `supported=true`, no fallback (happy path)
- [x] Manual: same test with `--force-fail` simulating openclaw's missing-method condition — fallback triggers, flags stripped, relaunch succeeds, 6.8 KB PNG captured (broken path)
- [ ] Verify on openclaw / real chrome-headless-shell 147 build that the fallback triggers automatically without `PRODUCER_FORCE_SCREENSHOT`
## Notes
- `probeBeginFrameSupport` catches any failure generically; we trust that a working browser answers the no-op beginFrame in well under 2s.
- Warning is logged once per browser acquisition, not per frame.
- Browser pool interaction: pooled browsers cache the resolved `captureMode`, so subsequent acquires in the same process reuse the post-fallback mode without re-probing.
- Force screenshot capture mode for WebM (beginFrame doesn't support
alpha channel in chrome-headless-shell)
- Set Emulation.setDefaultBackgroundColorOverride once during session
creation (matching experiment-framework's approach)
- Fix acquireBrowser to pass executable path in screenshot mode on
Linux (was setting undefined, causing puppeteer-core to fail)
- Add Page.captureScreenshot params: fromSurface, captureBeyondViewport,
optimizeForSpeed (matching experiment-framework)
- Fix regression harness extractMonoPcm16 for videos without audio
- Add getEncoderPreset unit tests
- Add webm-transparency regression test with golden baseline
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* feat: initial code port from hyperframes-internal
Port all OSS-ready packages from the internal monorepo:
- @hyperframes/core — shared types, HTML generation, GSAP utilities, runtime
- @hyperframes/cli — CLI for creating, previewing, and rendering compositions
- @hyperframes/engine — framework-agnostic rendering engine (BeginFrame + FFmpeg)
- @hyperframes/producer — video rendering pipeline (Puppeteer + FFmpeg)
- @hyperframes/ui-player — browser-based video player component
- @hyperframes/studio — composition editor (React frontend + Hono backend)
Includes regression test suite with Docker-based test harness.
All HeyGen-internal references, deployment infrastructure, and
proprietary assets have been removed. Package names migrated
from @app/* to @hyperframes/*.
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: scrub internal codenames and stale references from OSS port
- Replace static.heygen.ai runtime URLs in test fixtures
- Remove internal CDN publish script (publish-hyperframe-runtime.ts)
- Replace sandbox-studio, sandbox-interceptor, __magicEditRuntime
with neutral names (studio, hyperframe-runtime, __hyperframeRuntime)
- Fix stale Vault API / localhost references in docs
- Remove broken deprecated_studio link
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
* fix: remove remaining internal codenames and stale references
- Delete stale producer README.md and PIPELINE.md (referenced nonexistent files)
- Replace "Cerberus" codename with "HyperFrames" in test design reviews
- Replace magic-edit postMessage identifiers with hf-preview/hf-parent
- Rename debug-magic-edit-timeline.ts to debug-timeline.ts
- Replace "Motion Cut" with "HyperFrames" in Timeline comments
- Fix studio/CLI references to nonexistent archive package
(use local data/projects/ dir, stub render proxy)
Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
---------
Co-authored-by: Claude Opus 4.6 (1M context) <noreply@anthropic.com>
James Russo