Commit Graph
4365 Commits
Author SHA1 Message Date
Vance IngallsandClaude Fable 5.1 407cacf0ae feat(studio-server): default the GSAP writer to acorn
HYPERFRAMES_GSAP_WRITER=recast stays as the fallback for one watch window
before recast is deleted. acornDefaultBlockers -> behavioralParityOps: the 18
ops without a byte-diff oracle are now pinned in a test, not a gate.

files.test.ts "stale semantic no-op" pinned to the recast writer: its
interleave seam is recast's lazy import, which acorn (statically imported,
fully synchronous) never performs. The 409 revalidation it covers is
writer-independent.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-17 21:38:38 -07:00
Vance IngallsandClaude Fable 5.1 26ea8a0740 feat(studio): enable SDK cutover by default for every op family
Master flag defaults true; unset family list now means all five families.
VITE_STUDIO_SDK_CUTOVER_ENABLED=false / VITE_STUDIO_SDK_CUTOVER_FAMILIES=...
remain as runtime kill switches via __HF_STUDIO_ENV__. Gate: 0 divergences on
0.8.41-0.8.46 shadow tile, 3455/0 success/failed on dev builds (30d).

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>
2026-09-17 21:33:40 -07:00
miga-heygenandMiguel Ángel 82f49262ec feat(registry): blur every transform driver, and ship the reference case as shutter-slam (#4038)
The motion-blur snippet integrated translation only. Its output stage was one
SVG filter per target whose copies were feOffset, and feOffset only translates,
so a beat that only scaled or only turned sampled a displacement of zero and
rendered sharp. No SVG filter primitive can give a copy its own affine
transform, so the sampling loop was never the problem: the output stage was.

Copies are now DOM clones of the element in an isolation:isolate group, each at
1/N opacity with mix-blend-mode plus-lighter, each carrying the element's
resolved transform at its sample time. plus-lighter adds premultiplied colour,
so N + 1 copies at 1/N sum to the average the shutter integral asks for; the
isolation is load-bearing rather than tidy, because without a transparent
backdrop of its own the first copy adds onto the page and blows a light
background out to white. Reading the resolved matrix instead of a list of named
GSAP properties is what makes every driver work at once: translation, scale,
rotation, 3D rotation and skew arrive in the same one value.

Measured against the After Effects export the shutter model was fitted to, per
beat, previous stage to this one: scale +0.62 dB, rotate X +0.43, rotate Y
+0.84, rotate Z +1.15, translate X -0.18, translate Y -0.04. The two small
translate regressions are inherent and not tunable: the filter offset one
rasterisation so every copy was pixel-identical, where each copy is now
rasterised independently at its own fractional transform with its own subpixel
antialiasing.

Three consequences of the new stage, each carrying its own fix:

- mix-blend-mode flattens preserve-3d, so a copy cannot inherit the parent's 3D
  context. Each copy carries the parent's perspective as its own first transform
  function instead.
- A copy is styled by nothing that selected the original, since dropping the id
  also drops every #id rule that gave it size, colour and font. Each copy
  carries its own resolved style inline, read once and replayed. Those values
  are px, so a container-relative element needs them again when its box changes:
  a ResizeObserver re-snapshots rather than paying a subtree walk every frame.
- A beat that moved and faded at once kept a full-strength smear behind a
  vanishing element. The element's opacity now rides the group; the 1/N weight
  stays on the copies.

The axis option is gone. It selected which of x and y to sample, a question the
resolved matrix does not have.

shutter-slam is the new component: one word through six single-property beats,
two translate slams, a scale punch, then a full turn about each axis, which
exercises every driver the model covers in one mount. Easing is power2.inOut
because it measured best, not because it was the default. A bezier fitted to the
reference's own bbox centres looks like the better curve and renders worse: a
blurred bbox centre is the shutter window's average rather than the instant, so
on an accelerating segment the fit measures its own blur.

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-17 16:03:14 -04:00
Miguel Ángel a8a9fdb0fe chore: prepare v0.8.46 (#4033)
* chore: prepare v0.8.46

Draft only, not tagged: bun run release:prepare 0.8.46 --no-tag.
Changelog rewritten in plain words for the one change since v0.8.45
(#4031, adaptive per-frame motion-blur sample count). Cutting the
release is a separate step on Miguel's word.

* docs(release): fix false render-time savings claim in v0.8.46 notes

Adaptive sampling never drops below the old fixed-16 default; it only
adds cost on frames that measure real spatial motion. Per Miga's review
on #4033.
v0.8.46
2026-09-17 01:48:54 -04:00
Miguel Ángel 2ab7b86868 feat(engine): adaptive per-frame sample count for motion blur (#4031)
* feat(engine): adaptive per-frame sample count for motion blur

Measured against the accuracy bar set in #4010 (72.4dB mean PSNR vs the
960fps shutter integral), the fixed default of 16 samples misses it for
hard-edge content while paying nothing extra for static/slow content is
still important. This picks a sample count per frame from measured
motion, floor 16 ceiling 64 (issue #4029).

Two probe captures at the true shutter-window edges (never a sample that
enters the average) measure motion magnitude, mapped through a monotone
step table to a sample count. Frames confirmed to move only non-spatial
properties (opacity, colour) skip the probe and use the floor directly,
since a fade's shutter integral is a smooth blend that does not need many
samples. MotionBlurPlan's window (from shutter angle/phase alone) is now
independent of how many samples fill it, which is what lets the count
vary per frame without moving the window; motionBlurWindowIsStatic is
bounded by the widest sample inset any chosen K could produce so the
static-dedup safety guarantee holds for every K in [16, 64].

* refactor(engine): simplify the adaptive motion-blur sample selection

Two findings from an independent code-reuse/quality/efficiency review of
the previous commit:

- armStaticDedup ran the GSAP-timeline walk (computeStaticFrameSet)
  twice on the same page when adaptive motion blur and static dedup
  both apply, once for each purpose. Shares the one result instead.
- The non-spatial floor path read the sample count from
  adaptiveSampleCount(0), which only worked because the step table
  happens to be sorted with the first bucket covering zero. Reads
  the now-exported DEFAULT_SAMPLES_PER_FRAME directly instead.

* fix(engine): read raw options for the adaptive motion-blur gate

Independent review caught it: every armStaticDedup call site runs
before finalizeSessionInit resolves session.motionBlur, so the
adaptive-classification gate's `session.motionBlur &&
session.motionBlur.fixedSamplesPerFrame === null` was always false at
runtime. The non-spatial probe-skip described in the PR never engaged
outside tests that hand-set motionBlurNonSpatialFrames directly,
bypassing real init order.

Reads session.options.motionBlur (set unconditionally at session
creation) instead, which carries the same "adaptive requested"
information the resolved plan would have. Adds a source-order lock
test plus direct coverage of computeStaticFrameSet's
nonSpatialOnlyFrameSet, mutation-proved against the exact regression.

* fix(engine): add xPercent/yPercent to the spatial-property list

Round 2 of the independent review: the spatial-property list deciding
whether a frame's motion needs the adaptive probe omitted GSAP's
percentage-based position properties (xPercent/yPercent) and two 3D
transform properties (perspective/transformPerspective) that two other
lists already in this repo (packages/parsers/src/gsapConstants.ts,
packages/studio/.../gsapAnimatesProperty.ts) both carry. A composition
positioned via xPercent/yPercent would have been silently floored to
K=16 with no probe and no log line, the same failure shape as the
round-1 bug through a data gap instead of a dead gate.

Moves the list to an exported SPATIAL_TWEEN_PROPERTIES array in
motionBlur.ts, passed into computeStaticFrameSet's page.evaluate as
data rather than duplicated inline, so it stays a single list and is
directly testable. Adds tests that execute the real page-side closure
(the existing tests all mocked the whole result and never exercised
the matching code), mutation-proved against the exact gap found.

* fix(engine): add rotate to the spatial-property list

Round 3 of the independent review, comparing SPATIAL_TWEEN_PROPERTIES
side by side against the two sibling lists rather than trusting the
prior commit's summary: GSAP's individual "rotate" transform property
(distinct from "rotation", carried in
packages/studio/.../gsapAnimatesProperty.ts's GSAP_TRANSFORM_PROPS)
was still missing, same failure shape as the two prior rounds.

The same pass also raised transformOrigin, which is deliberately NOT
added: gsapConstants.ts's own classifyTweenPropertyGroup excludes it
as a pivot-point modifier with no independent visual effect, and a
test now locks that reasoning in rather than leaving it to be
"fixed" again by a future pass that does not read that far.
2026-09-17 01:09:12 -04:00
miga-heygenandMiguel Ángel 484a06fb65 chore: release v0.8.45 (#4027)
Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
v0.8.45
2026-09-16 22:56:40 -04:00
miga-heygenandMiguel Ángel f4cdccd995 test(cli): add a real-render e2e check for render telemetry properties (#4018)
Extends scripts/ci/cli-telemetry-e2e.mjs (already used to verify the `add`
command's telemetry) to spawn the built `render` command against two
generated fixture compositions and assert on the captured PostHog batch,
rather than a unit fixture that stubs the browser or ffmpeg.

One fixture sets every probed property (audio and image elements present,
root/body CSS size deliberately mismatched from the declared composition
size, a skill flag, one injected environment override) and its pair sets
none, so each property is asserted on both its present-and-correct side and
its absent-or-zero side in the same pair of runs: audio_count, image_count,
root_body_mismatch and its delta bucket, authoring_skill_source,
hf_env_overrides, and ffmpeg/browser_version_major.

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-17 02:49:34 +00:00
miga-heygenandMiguel Ángel 77a45f6080 fix(producer): fail loudly when a capture route cannot blur (#4026)
A render on the layered HDR route accepted `motionBlur` and returned frames
with no blur in them. The HDR compositor runs its own capture loop, seeking
and blitting each layer itself, so a frame never reaches the sub-frame
accumulation branch. The engine's own guard cannot catch it, because from
inside the session everything looks supported: screenshot capture mode, PNG
frames, and no video injector on a composition with no video.

This is the third time the question "does this route support motion blur"
has been answered implicitly by whichever code path happened to run, and the
third time it came out wrong and silent. `assertMotionBlurSupported` gives
that question one owner and one answer. The route it takes is the capture
plan's own `kind`, already the single value the capture stages consume, so
it cannot drift from the route that actually runs, and a new plan kind with
no entry in its table fails the typecheck rather than inheriting silence.

It sits inside `syncCapturePlan`, which runs on the initial plan and after
every replan, so a route a render falls back into is checked too.

Distributed renders are out of scope on purpose and recorded as such:
`DistributedRenderConfig` has no `motionBlur` field and is not built from
`RenderConfig`, so motion blur cannot be requested on one. There is nothing
to reject and no dead call site.

The explicit unsupported-mode error for layered HDR is the design in #4013
by Dante-dan.

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-17 02:13:55 +00:00
miga-heygenandMiguel Ángel 71bb88719e feat(telemetry): render output-shape, adapter, count, and environment properties (#4017)
* feat(telemetry): add output-shape request facts to render events

output_resolution_preset, output_format, hdr_mode, video_frame_format,
and gif_fps_capped join render_complete/render_error, all threaded
from already-resolved RenderOptions/RenderPlan fields rather than
recomputed: createRenderPlan already computes gifFpsCapped (clamping a
requested --fps above 30 to 30 for --format gif) but only used it for
a console warning; this threads that same decision into RenderOptions
and telemetry. All five are known before the pipeline starts, so both
events carry them even when a render fails before a perfSummary
exists.

Also wires output_format/output_resolution_preset into Studio's
separate emitStudioRenderComplete/emitStudioRenderError path, since
Studio's request genuinely varies those two per-request. hdr_mode,
video_frame_format, and gif_fps_capped stay CLI-only: Studio exposes
no HDR-mode, video-frame-format, or GIF output control to users at
all, so there is no per-request value to report for those three.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* feat(telemetry): add adapters_used to render events

adapters_used lists the runtime deterministic adapters
(packages/core/src/runtime/adapters/) a composition exercises.
Investigated the actual codebase rather than the ticket's guessed
7-adapter list and found 12 real registered adapters (gsap, css,
waapi, animejs, lottie, three, typegpu, d3, leaflet, mapbox, maplibre,
google-maps) — the map/data-source adapters share the exact same
window.__hf<Name> registration mechanism and are equally real
"adapters used" facts, so all 12 are included.

Detection unions a live page.evaluate probe (piggybacked on the same
probeSession resolveCompositionElementCount already uses) with a
static regex fallback over the compiled HTML, since this is purely
observational with no gating role (unlike compositionElementCount) —
union strictly increases recall rather than needing one source of
truth. Threaded through the same plumbing chain as the already-merged
composition_element_tags/aroll_video_count/heygen_video_count.

Studio's emitStudioRenderComplete/emitStudioRenderError get this field
automatically, with no Studio-side code change, via the same shared
capture-observability spread heygen_video_count already uses.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* feat(telemetry): add audio/image/sub-composition/color-grading counts

audio_count, image_count, sub_composition_count, audio_group_count,
color_grading_count, and has_lut join composition_element_tags in the
same single scanElementTags pass — audio/image/audio-group counts read
from the scan's uncapped tag map so a 50+-distinct-tag composition
can't push a named count into the "other" bucket. sub_composition_count
counts data-composition-src mounts directly rather than reusing
collectSubCompositionSrcs, which dedupes by src and drops
placeholder/remote mounts (a different, smaller fact than the mount
count this field reports).

has_lut decodes the HTML-entity-escaped form of data-color-grading
before parsing, since linkedom's serializer re-emits it
&quot;-escaped on every compile-pipeline round-trip — without the
decode this silently reported false for every LUT-graded composition.
The LUT-presence check now mirrors normalizeLut's own definition of
"has a LUT" exactly, closing a gap where a blank or empty lut value
would have reported true.

Threaded through the same plumbing chain as the already-merged
per-tag/provenance/adapter fields; Studio's emitter picks these up
automatically via the shared capture-observability spread.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* feat(telemetry): add browser_version_major and ffmpeg_version_major

Both are already-run subprocess calls whose output was discarded:
readToolVersion (checkFFmpeg's preflight) already runs `ffmpeg
-version`, and chromeLaunchOutcome already runs `--version` as a
Chrome launch sanity probe on every render. A shared
extractMajorVersion helper pulls the first X.Y-shaped number from
either banner, threaded onto EnvironmentCheckOutcome/
EnvironmentCheckResult, then RenderOptions right after
runEnvironmentChecks resolves in the local render path only.

Docker renders never populate these two RenderOptions fields (the
containerized producer runs its own preflight the host CLI never
sees), so both properties come back absent there rather than
reporting the host's own toolchain versions for a render that didn't
use them.

Studio does not call runEnvironmentChecks or this ffmpeg/Chrome
preflight at all before creating a render job, so its render_complete/
render_error events will not carry these two properties unless
Studio's own startup path is separately instrumented — a genuine
parity gap, not an oversight in this change.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* feat(telemetry): add authoring_skill_source and authoring_skill_invalid

Both derive from resolution logic createRenderPlan already runs:
authoring_skill_source names whichever step actually won attribution
(an explicit --skill flag, or the skill persisted in hyperframes.json)
using the same flagSkill/projectConfigSkill values already computed
for authoringSkill itself, not a second lookup. authoring_skill_invalid
surfaces the raw --skill value when it fails slug-shape validation
(normalizeSkillSlug rejects malformed input, not unregistered skill
names) — this value already exists as RenderPlan.invalidAuthoringSkill
and already drives a CLI warning in present.ts; this change threads
the same field into telemetry rather than adding a parallel one.

Threaded through both RenderOptions builders in execute.ts (single and
batch render) and all three telemetry call sites in render.ts,
including the Docker path — skill attribution is a request-level fact
independent of which backend executes the render.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* feat(telemetry): add root_body_mismatch and root_body_delta_px_bucket

Measures the composition root's authored data-width/data-height
against the scaffold's own html/body CSS size, straight from the
compiled document string scanElementTags already scans — the
source-level fact, not runtime DOM state. init.ts's applyCompositionSizing
(the #4001 fix) only patches the live DOM after the browser loads this
same HTML, so this measurement stays meaningful whether or not that fix
ran for a given render.

Reuses @hyperframes/parsers' canvasScaffoldPatterns regexes (the same
ones packages/lint's root_dimensions_mismatch rule reads) for the CSS
side. Root-tag detection here is a lighter first-data-composition-id-match
heuristic, not lint's more thorough findRootTag (which also handles a
leading decorative <svg> defs block) — that helper isn't part of
@hyperframes/lint's public API, and expanding it is out of scope here.

The delta is bucketed (0 / 1-10 / 11-50 / 51+ px) rather than reported
raw, and both fields come back absent — not a false/"0" default — when
the root or the CSS block can't be read at all.

Threaded through the same plumbing as every other static-scan field
this week, including the live-capture-observability fallback used on a
crash that never reaches perfSummary.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* feat(telemetry): add hf_env_overrides (names only, capped at 20)

Reports the sorted names of HF_*/HYPERFRAMES_* env vars present when
createRenderPlan resolves — never their values, since several of these
carry filesystem paths. Snapshotting at plan-resolution time (the very
first line of the render command, before any pipeline code runs)
matters: this render's own preflight later injects
HYPERFRAMES_FFMPEG_PATH/HYPERFRAMES_FFPROBE_PATH into its own
process.env, which would otherwise make those two always read back as
"operator overrides" whether or not the operator ever set them.

Reports an empty array, never an absent key, when nothing is set,
matching every other capped/bucketed field added this week. Capped at
20 names, documented alongside the cap constant.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* fix(cli): stop clobbering studio render_complete fields, fix an env leak

trackRenderComplete's explicit audio_count/image_count/root_body_mismatch/
adapters_used/etc. keys, sourced from perfSummary.drawElement and only ever
populated on the CLI's own render.ts path, always won the object spread over
the observability-capture fallback those same keys share with trackRenderError,
even when the direct value was undefined. studioRenderTelemetry.ts's
emitStudioRenderComplete never populates drawElement, only the capture
fallback, so 24 fields silently came back missing from every studio-triggered
render_complete event despite Studio having computed and sent the capture
value. Each field now falls back to its captureXxx counterpart via a new
directOrCapture() helper when the direct field is absent, with regression
tests proving both the fallback and that the direct value still wins when
both are present.

Also excludes HF_SHADER_WORKER_ENTRY from hf_env_overrides: cli.ts sets this
on every invocation to point the bundled shader worker pool at its own file,
sharing the HF_ prefix by coincidence rather than because an operator set it.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* style: remove em and en dashes from added code comments

No behavior change. Rewrites 22 comment lines this PR's own diff introduced,
using a comma or a period where the dash separated two clauses.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* test(producer): add a temporary diagnostic for a CI-only rootBodyMismatch failure

Not a real fix. The rootBodyMismatch test group fails deterministically in
CI (confirmed on two runs of the same head) but will not reproduce locally
by any method tried, including an isolated file run, the exact combined
producer:test:unit command, a worker-count-constrained run, and a fresh
clone with a clean install and build matching CI's own steps.

This dumps the intermediate regex-match state for the simplest failing
fixture to stderr so the next CI run's log says what actually differs.
To be removed once that answer lands.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* test(producer): widen the rootBodyMismatch diagnostic to compare import paths

Still not a real fix. The previous diagnostic (ca4e73983) proved the
imported HTML_BODY_CSS_WIDTH_FIRST_RE has 4 capture groups in the failing
CI run instead of the 2 the source and production code expect, but it used
a dynamic import(), which can resolve through a different codepath than
renderOrchestrator.ts's static import. This adds a static import of the
same binding, a require.resolve() of the resolved file path, and a direct
read of that file's own regex line, so the next run can rule in or out a
static/dynamic resolution split versus a genuinely different file on disk.

Locally both imports agree (2 groups, same object, correct file). To be
removed once the CI answer lands.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* fix(producer): read the merged 4-group scaffold-size regex correctly

main merged #4012 while this branch was in flight, consolidating
HTML_BODY_CSS_WIDTH_FIRST_RE/HEIGHT_FIRST_RE from 2 capture groups (digits
only) to 4 (prefix text, digits, suffix text, digits) so cli's
applyResolutionPreset could reuse the same regex for its in-place replace.
detectRootBodySizeMismatch still read groups 1/2 as the digits, now the
prefix/suffix text, so Number() on them was NaN and every render's
rootBodyMismatch/rootBodyDeltaPxBucket silently came back undefined. Fixed
to read groups 2/4, matching lint's core.ts readHtmlBodyCssSize exactly.

Removes the temporary diagnostic test (ca4e73983, e2e384c8e) now that its
CI log gave the real answer: both a static and dynamic import of the
regex resolved to the same file, and that file's own content had 4 groups
because this branch's merge-base predates #4012, not because of any
resolution or caching difference. A fresh CI run confirmed no CI-only
failure remains after merging main and fixing the indices.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* chore: nudge CI (no workflow run triggered on previous push)

* chore: nudge CI again now that #4017 is out of draft

---------

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-17 02:10:27 +00:00
miga-heygenandMiguel Ángel 9117b36471 fix(engine): skip motion-blur dedup when the shutter window moves (#4025)
The static-frame dedup reuses the previous frame's buffer when a frame is
byte-identical to its predecessor. With motion blur on that test is not
enough: the shutter window reads content either side of the frame instant,
so a still frame next to a moving one reused a buffer that carries none of
that motion. At 30 fps and 16 samples frame 11's window runs 10.75 to 11.25
at a 180 degree shutter and 10.06 to 11.94 at 720, so both reach past the
frame instant and the default is affected too.

motionBlurWindowIsStatic now owns whether a blurred frame may reuse its
predecessor's buffer. It requires every frame the window reads from to be
static, and covers the previous frame's window as well, because reuse claims
the two blurred outputs are equal. The range is derived from the plan's own
sample tick offsets, so it cannot drift from where the samples land.

The guard's contract comes from #4013 by Dante-dan, which carried it before
we did. One existing test fixture is widened: it asserted reuse with only the
frame itself marked static, which the guard now correctly rejects.

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-17 01:46:43 +00:00
miga-heygenandMiguel Ángel b64a7a3a67 feat(producer): make sub-frame motion blur reachable from a render (#4020)
* feat(producer): make sub-frame motion blur reachable from a render

Second deliverable for issue #4010. The engine gained the accumulation path, but
nothing set CaptureOptions.motionBlur, so the feature could not be switched on
from a real render. RenderConfig now carries it and the producer threads it into
the capture options.

Doing that surfaced the defect that would have made it fail silently. "Does this
render capture PNG frames" was spelled four times, every one of them re-derived
from needsAlpha, which describes the OUTPUT container rather than the capture:

  probeStage        picked the probe capture format
  renderOrchestrator picked the render capture format
  encodeStage       built the encoder's frame_%06d input pattern, twice
  captureStage      built the disk worker's frame extension

Motion blur is a second, independent reason to capture PNG: the sub-frame samples
are averaged pixel by pixel, so JPEG samples would be averaged after a lossy
quantization. Add that reason to only one of those four and the encoder goes
looking for frame_%06d.jpg against files written as .png, and the render finds no
frames at all rather than reporting an error.

So the rule now has one owner, resolveCaptureImageFormat, which names both
reasons. Everyone downstream reads the resolved capture format instead of
re-deriving it: the encoder and the disk worker share frameFileExtension with
writeCapturedFrame, which is what actually names the files. needsAlpha keeps only
the question it really answers, whether the output preserves alpha.

captureStage no longer needs needsAlpha at all, which is the tell that the
re-derivation was its only reason to know.

No JPEG encoder is involved. The PNG capture path is already load-bearing, since
every transparent-output render uses it and the streaming encoder already selects
png as its input codec.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* fix(engine): resolve the motion-blur plan on every initialization exit

A real render produced no blur at all. The plan was correct, the producer
wiring was correct, and the sub-frame sample times were genuinely distinct, but
K=16 and K=64 rendered identically to no blur because neither ever ran.

initializeSession has two exits: screenshot mode finishes its own block and
returns, every other capture mode falls through to the end. The plan was
resolved at the fall-through exit only, and screenshot is the one capture mode
motion blur supports, so on exactly the path the feature runs on
session.motionBlur was never assigned. captureFrameCore then read it as
undefined and took the single-capture branch: one capture per output frame, no
accumulation, no error.

finalizeSessionInit is now the single owner of what finishing initialization
means. It sets the plan and isInitialized together and is called at both exits,
so a third exit cannot mark a session ready while forgetting the plan.

Why the existing tests passed, which is the part worth keeping: the accumulation
test set session.motionBlur directly on a stub session. It exercised the
mechanism while bypassing the only code that decides whether the mechanism runs
at all. A test that proves something works and never asks whether it is
reachable is not end to end, however much behaviour it drives.

Two tests. A structural guard that session.isInitialized = true appears exactly
once and that the same place resolves the plan, which fails if the defect is
reintroduced at either exit. And a sample-distinctness assertion that hashes the
K buffers captured within one output frame and requires K distinct ones, which
covers the different failure of every sub-frame seek landing on one instant.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

---------

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-17 01:16:52 +00:00
Aditya Poudyal e4b1832fad feat(cli): add hls output format (#4022) 2026-09-16 21:09:14 -04:00
miga-heygenandMiguel Ángel 9aa60a844f fix(registry): make motion-blur match After Effects shutter-based blur (#4008)
* fix(registry): make motion-blur match After Effects shutter-based blur

The motion-blur catalog snippet estimated speed from the x/y delta
between consecutive timeline updates and drew three one-sided ghost
copies with decaying alpha plus a Gaussian on top. After Effects does
temporal supersampling: each frame integrates the layer over a shutter
window (shutter angle, shutter phase, samples per frame), producing a
symmetric box smear of length speed x shutter time.

The snippet now does the same inside the page. After every timeline
update a deferred pass seeks the GSAP timeline to N sub-frame times
across the shutter window (events suppressed), reads each target's x/y,
restores the frame time, and drives an SVG filter that averages N
feOffset copies with equal weight (feComposite arithmetic, 1/N, sRGB).
Defaults follow AE: shutterAngle 180, shutterPhase -90, samplesPerFrame
16; fps comes from the render config, then the root data-fps, then 30.
Displacements are mapped through the inverse of the element's own
scale/rotation; percent x/y values are resolved to px; SVG targets use
their bbox; an existing inline filter is kept and the blur appended to
it. The pass runs in a microtask rather than inside the tracker tween's
onUpdate, because seeking GSAP from within its own render reads stale
tween state and suppresses the composition's callbacks on forward
seeks. The heuristic options blurScale/blurMax/stretchScale/stretchMax
are removed.

Reference: an AE-algorithm reconstruction of the same composition
rendered without the component at an effective 960 fps and averaged
over the 16 sub-frames of the 180 degree window per output frame.
Against it (1920x1080, 30 fps, solid + text translating linear then
power2.inOut): old mean PSNR 53.2 dB (min 26.7), SSIM 0.9930; new mean
PSNR 72.4 dB (min 52.6), SSIM 0.9998. The 10-90 edge ramp at 66.7
px/frame is 26.8 px in the reference, 27.5 px new, 14.5/6.3 px
(one-sided) old; at the ease peak 79.3 vs 79.5 vs 7.9/17.7 px, with
smear centres matching to 0.1 px.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* fix(registry): drop render-config fps probe from motion-blur and refresh its docs

The snippet resolved fps by reconstructing the renderer's private seek
config key so the compiler's inline-script guard would not strip it. A
public catalog snippet must not depend on that key, so fps is now the
explicit option, then the root data-fps, then 30; renders with an fps
override pass fps explicitly. The catalog page's Usage, How it works and
Options sections still described the old velocity heuristic and are
rewritten for the shutter model. The 1/N weight keeps full precision.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* fix(registry): match the After Effects reference export's shutter window

The shutter model landed on this branch was built against a reconstruction
of After Effects' algorithm, not against After Effects. A real 1920x1080 /
30 fps export of translating text disagrees with it on three points, all
measurable off the export itself.

The window is two frames wide, not half a frame. On the measured frame the
outermost duplicate on the trailing side sits 128 px back while the previous
frame is 125.8 px back, and the outermost leading duplicate sits 189 px ahead
while the next frame is 184.9 px ahead: the window ends land on the
neighbouring frames. Defaults become shutterAngle 720, shutterPhase -360.

Duplicates sit on the sub-interval boundaries, both ends included, not at
sub-interval centres. The staircase across a stroke steps every 15.6 px on a
125.8 px displacement and every 23.0 px on a 184.9 px one, i.e. an eighth of
a frame, with the run closing exactly on the neighbouring frame's position.
samplesPerFrame now means sub-intervals of the window, so there are N+1
copies at k/N rather than N copies at (k+0.5)/N.

The frame-time instance is drawn sharp over the smear. At full ink the core
bounding box is the whole word at every frame and total ink rises to 1.44x
the unblurred frame's, neither of which an average can produce. A final
feComposite over of SourceGraphic reproduces it. Each duplicate stays at
1/N: the staircase plateaus step by 0.063 +- 0.002 of the sharp text
intensity, flat, with no taper toward the window edges, and triangle
weighting scores 1.6 dB worse against the export.

Verified by replaying the export's translating section as a composition
whose sprite is the export's own rest-frame ink and whose eight legs follow
its own measured per-frame positions, rendered at 1920x1080 / 30 fps and
compared frame by frame over the text band. Mean PSNR against the export
rises from 24.19 dB (min 17.07) to 32.51 dB (min 27.57) across 72 frames,
and from 19.83 dB (min 17.07) to 32.03 dB (min 27.57) across the 26 frames
that actually move. Ghost extents match to a few px and the rendered
staircase plateaus match the export's to two decimal places. The export's
later scale, skew, flip and 3D rotation sections are out of reach here:
integrating anything but translation inside the shutter is engine work
tracked in issue #4010.

The filter region now clamps its bounds through zero. It was derived from
the duplicate offsets alone, which was correct while the output was nothing
but duplicates; the sharp instance draws at offset zero, so a window sitting
entirely on one side of the frame time - any shutterPhase above 0 or below
-shutterAngle - produced a region starting inside the element's own box and
cut the instance off. The defaults straddle the frame time and were never
affected, so the measured numbers above are unchanged.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

---------

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-17 00:51:03 +00:00
Aditya PoudyalandClaude Opus 5 462f9db73d feat(producer): add hls output format (#4014)
* feat(engine): add packageHls for HLS VOD packaging

Adds `packageHls` next to `muxVideoWithAudio`: stream-copies an
already-encoded H.264 video and optional AAC sidecar into an HLS VOD
directory (`master.m3u8` + split video/audio renditions, MPEG-TS
segments) with `-c copy`, so no re-encode happens at package time.

Depends on the locked GOP from the previous commit. `-hls_time` can only
cut at existing keyframes, so `gopSize = segmentSeconds x fps` is what
makes every segment exactly `segmentSeconds` long and IDR-aligned. A
test packages an unlocked encode to pin that: the same call yields one
4s segment instead of four 1s ones.

Deliberately omits the mp4 mux's provenance tags, which MPEG-TS drops
and whose `-movflags` is invalid for `-f hls`, and `-avoid_negative_ts`,
which would discard the AAC priming and shift audio against video (see
issue 3487). A real-ffmpeg test asserts the first presentable audio
sample lands on the first video frame.

No caller yet; `format: "hls"` in the producer follows.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

* fix(engine): zero HLS mux base and reject % in packageHls outputDir

- Pass -muxdelay 0 -muxpreload 0 so the first segment starts at PTS 0
  instead of the mpegts muxer's 1.4 s base; A/V alignment through the
  AAC priming packet is unchanged
- Throw on an outputDir containing %, which ffmpeg expands as a printf
  conversion in -hls_segment_filename and fails with a misleading
  "No such file or directory"
- Assert alignment on relative spacing rather than on how one ffmpeg
  build clamps the priming packet's negative PTS
- Encode the test fixture with the full software GOP lock
  (lockedGopCodecParams), not just appendLockedGopArgs
- Trim comments to the non-obvious rationale

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* test(engine): satisfy the ffprobe argv contract in packageHls test

`producer/src/utils/ffprobeArgvContract.test.ts` sweeps every package at
the source level and requires `--` to be the argv entry immediately before
an ffprobe input path. The `probe()` helper here passed
`join(outputDir, HLS_VIDEO_PLAYLIST)` in that slot, which the contract's
comma-splitting parser reads as two entries, so the producer suite was red
on this branch while the engine suite stayed green.

`probe()` now takes the input path as a parameter and appends the
terminator itself. The sibling ffmpeg `run()` helper switches from a
spread-in-array-literal to `.concat`, because a verbosity-flag-then-spread
literal is indistinguishable from the ffprobe wrapper shape the contract
demands a terminator on. The matcher reads raw source including comments.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(engine): drop the audio-only variant from the HLS master playlist

With `a:0,agroup:aud` in `-var_stream_map`, ffmpeg lists the audio
rendition twice in `master.m3u8`: as the `#EXT-X-MEDIA:TYPE=AUDIO` group
the video variant references, and again as a standalone `#EXT-X-STREAM-INF`
variant with no `RESOLUTION`. That is valid HLS, but a player choosing by
bandwidth can select it and play sound with no picture, and the VOD
consumer asked for a single rendition.

`stripAudioOnlyVariants` removes any variant tag without a `RESOLUTION`
attribute together with its URI line; `packageHls` applies it to the
master after a successful audio+video run. The rendition group and the
audio playlist are untouched, so `audio.m3u8` is still referenced from the
master. Pinned by a unit test on the playlist text and by the real-ffmpeg
test, which now asserts exactly one `#EXT-X-STREAM-INF`.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* refactor(producer): extract hdrMode warning and decision-log helpers

`resolveEffectiveHdrMode` was already over the fallow complexity gate on
`main` (21 cyclomatic / 25 cognitive / CRAP 462) and only surfaces now
because the HLS format work needs to touch its downgrade warning. Pull the
downgrade message into `formatDowngradeWarning` and the "which mode and
why" info line into `logHdrDecision`, which puts the function under the
threshold.

No behavior change: every log string is byte-identical and `hdrMode.test.ts`
asserts them unchanged.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* feat(producer): add hls output format

Adds `format: "hls"` to `@hyperframes/producer`. An HLS render is the same
opaque H.264 + AAC encode as `mp4`, stream-copied at assemble time (no
re-encode) into a directory: `master.m3u8`, `video.m3u8` + `video_%05d.ts`,
and `audio.m3u8` + `audio_%05d.ts` when the composition has audio.

The load-bearing part is that `-c copy -f hls` can only cut a segment at an
existing keyframe, so the encoder's GOP is locked to
`hlsSegmentSeconds x fps` frames. `resolveHlsEncoderGopLock` returns that
pair as one value spread into both encoder inputs, so the streaming and
disk/chunked paths cannot disagree — a render reaching only one of them
still succeeds, it just emits variable-length segments silently.

- `renderFormat.ts`: `hls` is opaque (`outputNeedsAlpha` is now
  `!== "mp4" && !== "hls"` — missing this flips HLS to RGBA screenshot
  capture with nothing failing), supports page-side compositing, and
  `outputUsesH264Pipeline` replaces the three `outputFormat === "mp4"`
  router gates.
- `hlsConfig.ts`: `hlsSegmentSeconds` (default 4, positive integer), the
  GOP derivation, and the fail-fast gates. `force-hdr` is rejected (v1 is
  SDR-only; HDR10 needs HEVC in fMP4), and so is `useGpu` — the GOP lock is
  software-only, so a GPU HLS render segments correctly by accident on
  videotoolbox and wrong on nvenc.
- `assembleStage.ts`: `hls` branches to `packageHls` instead of
  mux/faststart, after the same `padOrTrimAudioToVideoFrameCount` the mp4
  mux uses.
- `artifactTransaction.ts`: a directory artifact can now carry a
  `probeTarget` + `requiredFiles`, so the #3395 truncation gate still runs
  for HLS against `video.m3u8`. `expectedFrames` is inert there (ffprobe
  reports no frame count through the hls demuxer); duration carries it.
- `renderRequest.ts`: accepts `hls` + `hlsSegmentSeconds`; distributed
  conversion rejects it alongside `gif`. `DistributedFormat` is unchanged.
  `RENDER_REQUEST_VERSION` stays at 1: the new field is optional, the
  parser ignores unknown option keys, and an older worker already rejects
  `format: "hls"` with "Render request format is invalid".
- `hdrMode.ts`: the non-mp4 SDR downgrade warning no longer claims
  "HDR + alpha" for `hls`; the helper extraction landed in the preceding
  refactor commit.

Verified: `hlsRender.integration.test.ts` renders a real 10 s composition
and asserts 3 segments, the first two exactly 4.000 s, every segment
starting on an IDR frame, and PTS 0. Removing the GOP wiring collapses it
to 2 segments, so the test is load-bearing. Both producer lanes (unit and
integration) run on every PR in `ci.yml`, so that wiring check is on the
PR gate.

CLI flags and docs are deliberately left to the next PR in the series.

Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com>

* fix(engine): close the HLS master playlist rewrite race

CodeQL flagged two high-severity alerts on the `stripAudioOnlyVariants`
rewrite: a check-then-use race (`existsSync` then a separate path-based
read and write) and insecure creation of a file at a predictable path in
the OS temp dir.

Both came from resolving `master.m3u8` three times. Open it once with
`r+` and owner-only mode — which neither creates the playlist nor widens
its permissions, ffmpeg owns that — then read, truncate and write through
that one descriptor. Absence is still tolerated for the argument-level
tests that stub ffmpeg, now via ENOENT rather than a prior existence
check.

No behavior change: `hlsRender.integration.test.ts` still renders a real
composition with audio and asserts the stripped master playlist.

Co-Authored-By: Claude Opus 5 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-16 20:33:55 -04:00
miga-heygenandMiguel Ángel 0a1c6f5a45 feat(engine): sub-frame multi-sample motion blur, capture-level accumulation (#4019)
Deliverable one of issue #4010: average K sub-frame captures into each output
frame so rotation, scale and opacity blur the way After Effects does, which the
translation-only catalog component (#4008) cannot do. Opt in per render with
CaptureOptions.motionBlur; absent means the capture path is unchanged.

The blocker was quantizeTimeToFrame flooring every seek onto the output frame
grid, which collapsed all K samples onto one instant and made the averaged frame
byte-identical to the unblurred one. quantizeSeekTime now owns that decision at
all three quantize sites (runtime player, its no-timeline fallback, and the init
transport) and refines the grid by an integer subdivision count, which can only
contain the output grid, never move a frame-time instant off it. The finer grid
rounds rather than floors: a sample time round-trips through the page bridge as
a float, and past a few million ticks that error exceeds the floor epsilon.

Accumulation sits inside captureFrameCore AFTER the static-dedup early return,
so a static frame still costs one reused buffer and only moving frames pay K. It
is not a before-capture hook, which would have disabled dedup outright.

Callback invariant: one eventful seek per output frame at the frame time, then K
suppressed sample seeks, then a suppressed restore to the frame time. The
restore matters because a suppressed seek still moves the playhead, so without
it the next frame's eventful seek would swallow the callbacks inside the shutter
window.

Scope of this deliverable: screenshot capture mode and PNG output. beginframe,
drawelement and JPEG encoding are rejected with a named error rather than
silently rendering unblurred. Video content is rejected for the same reason it
is a documented limitation: injected frames are extracted per output frame and
cannot follow a sub-frame seek.

Blend defaults to sRGB, matching AE's non-linearised 8-bpc working space and
the catalog component. Linear light is an explicit opt-in.

Samples are folded into a running average as they are captured rather than held
until the end, so peak memory is one accumulator plus one decoded sample instead
of all K: at 1080p that is a constant 41 MB rather than 141 MB at 16 samples and
540 MB at the 64 maximum, on every frame of the render.

PNG chunk CRC32 now has one owner in utils/crc32.ts, shared by the new encoder
and ffprobe's metadata reader. The encoder previously imported zlib's crc32 by
name, which throws at module evaluation on Node 22.0 and 22.1; ffprobe already
carried the guarded version and the comment explaining why. The sRGB transfer
function is likewise exported once and shared.

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-16 20:10:06 -04:00
miga-heygenandMiguel Ángel 3c9462feea chore: release v0.8.44 (#4016)
- Lint no longer reports root_dimensions_mismatch for sub-compositions, the
  false positive v0.8.43 shipped with; a top-level mismatch is still reported
  and a viewport-meta-only mismatch gets its own wording (#4012)
- The streaming encoder accepts lockGopForChunkConcat and gopSize, emitting the
  same arguments as the disk encoder. Off by default, so an existing render
  produces an unchanged FFmpeg arg list (#3973)

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
v0.8.44
2026-09-16 19:14:51 -04:00
Aditya Poudyal b4f1929cf0 feat(engine): lock GOP on every encoder path (#3973)
## What this does

Video encoders normally choose their own keyframe positions. A keyframe is a frame that can be decoded on its own, and you can only cut a video cleanly at one. The engine already has a flag, `lockGopForChunkConcat`, that forces a keyframe every `gopSize` frames so chunk files can be joined with `ffmpeg -c copy`. Today that logic is copy-pasted in two places inside `buildEncoderArgs` and does not exist at all in the streaming encoder.

This PR:

1. **Extracts the locked-GOP logic into three small shared helpers** in `chunkEncoder.ts`: `resolveLockedGopSize` (validation), `appendLockedGopArgs` (the `-g` / `-keyint_min` / `-sc_threshold` / `-force_key_frames` args), and `lockedGopCodecParams` (the x264/x265 param fragment). `buildEncoderArgs` now calls them instead of inlining the same block twice.
2. **Adds the same flag to the streaming encoder** (`StreamingEncoderOptions.lockGopForChunkConcat` + `gopSize`), which is the path most renders under four minutes actually use. It emits the identical args as the disk encoder, including `-bf 0` for h265 under a lock so B-frame reordering cannot reintroduce negative DTS at a boundary.

## What does not change

- Any render that does not set the flag produces a byte-identical ffmpeg arg list. The flag defaults to `false` everywhere.
- Nothing in the tree sets the flag yet except the distributed chunk worker, which already used the disk encoder. No user-facing behavior changes.
- GPU encoders, VP9 and ProRes streaming encodes continue to ignore the flag, exactly as `EncoderOptions` documents. An earlier revision of this PR made GPU encoders honor it; that was dropped because the path is unreachable until HLS lands and was verified only on videotoolbox.

## Why

Groundwork for `format: "hls"` in `@hyperframes/producer`. HLS packaging stream-copies the encoded video into fixed-length segments with `-f hls -c copy`, and the segmenter can only cut on keyframes the encoder already produced. Locking the GOP at encode time is what makes every segment land exactly on a 4-second boundary without re-encoding. The follow-up PR adds the format itself and should reject `--gpu` for `hls` in v1.

## Testing

- `chunkEncoder.test.ts`: the three helpers tested directly; existing locked-GOP and GPU no-op tests unchanged.
- `streamingEncoder.test.ts`: new `lockGopForChunkConcat` block covering default off, libx264, libx265, and invalid `gopSize`.
- Engine typecheck, oxlint, oxfmt clean. Full engine suite matches main's baseline (the 4 `ffprobe.test.ts` HDR fixture failures are pre-existing on `main`).

🤖 Generated with [Claude Code](https://claude.com/claude-code)
2026-09-16 19:07:49 -04:00
miga-heygenandMiguel Ángel 2229d0d6a6 fix(lint): root_dimensions_mismatch sub-composition false positive + regex SSOT consolidation (#4012)
* fix(lint): guard root_dimensions_mismatch against sub-compositions

Sub-compositions mounted via data-composition-src are fetched with
DOMParser and only their matched <template>/<body> subtree is imported
into the live document. A sub-composition authored as a full standalone
HTML document still carries its own <html>/<head>/<meta viewport>, but
none of that ever reaches the rendering document, so a mismatch there was
always a false positive. Guard the rule with options.isSubComposition,
matching the sibling missing_timeline_registry rule's existing pattern.

Split the warning wording: html/body CSS actually sizes the element that
clips the root, but the CDP viewport is set from the root's own
data-width/data-height (frameCapture.ts), never from <meta viewport>. A
viewport-only mismatch is real drift but not a clipping risk.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* fix(cli,parsers): consolidate scaffold resolution regexes into one definition

applyResolutionPreset kept its own prefix-capturing regex literals for the
html/body CSS size and meta viewport content, duplicating the same three
patterns already defined in @hyperframes/parsers for lint's read-only
root_dimensions_mismatch comparison. Merge to one definition per pattern
that captures both the prefix (for in-place replace) and the digits (for
comparison), so the two callers can no longer drift on where a scaffold's
resolution lives. Existing applyResolutionPreset tests stay green.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

---------

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-16 21:09:32 +00:00
miga-heygenandMiguel Ángel d6fe66707f chore: release v0.8.43 (#4007)
- Portrait compositions render the full frame when the project was
  scaffolded at a different size: html/body are sized to the composition
  root at runtime; new lint warning root_dimensions_mismatch (#4005,
  fixes #4001)
- render_complete telemetry adds composition_element_tags,
  aroll_video_count, heygen_video_count; render_error adds error_name and
  failed_stage_code (#4004)
- Catalog docs "Source" accordion titles are plain strings, so docs
  search no longer shows [object Object] (#4006)

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
v0.8.43
2026-09-16 14:05:29 -04:00
miga-heygenandMiguel Ángel 3704863d96 feat(telemetry): per-tag, provenance, and failure-taxonomy properties on render events (#4004)
* feat(telemetry): add per-tag element and a-roll counts to render_complete

countElementTags's single regex scan (the ~83% of renders that get no
live probe session) is extended into scanElementTags, which returns a
per-tag breakdown and an a-roll video count alongside the same total,
all from one pass over the same script/style-stripped markup — the
total is the sum of the per-tag map by construction, so the two
properties can't drift apart. countElementTags itself is removed; it
had zero production callers after this change.

New render_complete properties: composition_element_tags ({tag: count},
raw lowercase tag names, capped at the top 50 by count with the rest
folded into an "other" key) and aroll_video_count (<video
data-aroll="true"> elements from the same scan). Both are static-scan-
only, mirroring the existing composition_element_count_source split —
the live probe-DOM path never runs this scan.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* feat(telemetry): count HeyGen-provenance video from the same tag scan

heygenVideoCount joins arollVideoCount/byTag as a third property
derived from scanElementTags's single pass: <video
data-media-source="heygen"> elements. media-use's resolve.md now
documents that the skill stamps this attribute on a mounted video only
when the ledger record's provider is "heygen.video" (the mount itself
is always the agent's own composition edit, never written by resolve
scripts) — the ledger stays the single source of truth for provenance,
the HTML attribute is a projection of it, and no other provider value
is invented beyond this one signal.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* feat(telemetry): add a bucketable failure taxonomy to render_error

error_name (error.name, e.g. one of the ~20 typed producer error
classes) and failed_stage_code (job.currentStage/failedStage
normalized to a stable snake_case code via normalizeStageCode)
join the existing free-text error_message/failed_stage, so a fleet
query can bucket failures without parsing prose. Error-conditional by
nature — render_complete has no equivalent, since a successful render
has no error to name or stage to blame.

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

---------

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-16 12:37:57 -04:00
miga-heygenandMiguel Ángel eb0957a497 fix(core,lint): keep html/body sized to the composition root, warn when a scaffold's copies drift (#4005)
A composition whose root declares portrait data-width/data-height renders
at the correct output size, but a project scaffolded landscape (init
without --resolution) still ships html/body CSS and a viewport meta at the
old landscape size. The stale body's overflow:hidden then clips the
correctly-sized root at the old height, so everything past it renders as
page background instead of real content.

applyCompositionSizing now mirrors the SAME forced width/height it already
computes for the root onto documentElement/body, reusing rather than
recomputing them. overflow:hidden is left untouched (a deliberate
anti-white-bar guard set earlier in the same init pass): once body's own
size agrees with the root it contains, it clips nothing that matters.
Runs in both preview and render, since both load the one bundled runtime
artifact this file builds into.

Adds a warning-level root_dimensions_mismatch lint rule alongside
root_missing_dimensions, comparing the root's dims against the html/body
CSS block and the viewport meta - the two other places a scaffold's
resolution lives besides the root itself. The read-only regexes live in
@hyperframes/parsers (packages/lint cannot depend on packages/cli, which
owns the closest existing pattern in applyResolutionPreset) so a future
caller has one place to update if the scaffold's shape changes, rather
than a rule silently comparing against a guess.

Closes #4001.

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-16 12:37:11 -04:00
miga-heygenandMiguel Ángel 7b5fdb1ad2 fix(docs): emit catalog source accordion titles as plain strings (#4006)
The generated catalog pages rendered the "Source" accordion title as a
JSX expression, `<Accordion title={`name.html`}>`. Mintlify's search
indexer stringifies expression attribute nodes rather than evaluating
them, so every one of the 399 catalog pages surfaced its Source section
in search results as "[object Object]" (visible on the Scroll Feed page,
among others).

The template literal carried no escaping benefit: every title is a
single-segment `name.html` path, and a double-quoted JSX string handles
it directly. Introduce `mdxStringAttribute`, which emits a plain
`name="value"` attribute and escapes `& " < { }` as HTML character
references (MDX decodes references inside quoted attribute values, and
unlike JSON.stringify it does not rely on backslash escapes, which JSX
strings do not honour). Use it for both the Source accordion title and
the preview iframe title, and regenerate the catalog pages.

Regenerated with `npx tsx scripts/generate-catalog-pages.ts`; the only
change across the 399 pages is the one Accordion title line each.

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
2026-09-16 11:55:00 -04:00
miga-heygenandMiguel Ángel 71b274bbfd chore: release v0.8.42 (#3988)
* chore: release v0.8.42

- Studio preview works for projects whose path has non-Latin-1 characters (#3982)
- Studio render downloads use RFC 6266 headers for non-Latin-1 filenames (#3984)
- check --json reports HDR auto-promotion; render prints one warning (#3985)
- Forced --sdr renders tone-map HDR sources before extraction (#3981)
- Render/preview workers no longer survive as orphans after Ctrl-C or parent exit;
  cancellation reaches final artifact promotion; HYPERFRAMES_RENDER_DETACHED=1 for
  intentionally detached renders (#3974)
- HDR preflight test coverage for held tails (#3963)

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* chore: release v0.8.42 notes — name the #3982 symptom and scope

- #3982 entry: a Studio preview server crash for compositions whose file path
  has non-Latin-1 characters (the project directory is not involved)

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

* chore: release v0.8.42 notes — name the #3982 symptom

- #3982 entry: the uncaught ETag TypeError took the preview server down, so
  call it a Studio preview server crash rather than a preview failure

Co-Authored-By: Miguel Ángel <miguel.sierra@heygen.com>

---------

Co-authored-by: Miguel Ángel <miguel.sierra@heygen.com>
v0.8.42
2026-09-16 09:40:06 -04:00
heygengenesis[bot]andmiguel.sierra 08d48ab753 fix(cli): guard process snapshot capture (#3974)
Co-authored-by: heygengenesis[bot] <262951085+heygengenesis[bot]@users.noreply.github.com>
Co-authored-by: miguel.sierra <229591595+miguel-heygen@users.noreply.github.com>
2026-09-16 06:33:29 +00:00
heygengenesis[bot]andmiguel.sierra ef48485b91 fix(engine): tone-map HDR frames for forced SDR (#3981)
Co-authored-by: heygengenesis[bot] <262951085+heygengenesis[bot]@users.noreply.github.com>
Co-authored-by: miguel.sierra <229591595+miguel-heygen@users.noreply.github.com>
2026-09-16 06:32:17 +00:00
heygengenesis[bot]andmiguel.sierra 5d2478c6fa fix: report HDR auto-promotion (#3985)
Report HDR auto-promotion consistently from the render media set, including remote media, and make its regression coverage portable across supported paths.

Co-authored-by: heygengenesis[bot] <262951085+heygengenesis[bot]@users.noreply.github.com>
Co-authored-by: miguel.sierra <229591595+miguel-heygen@users.noreply.github.com>
2026-09-16 06:13:24 +00:00
heygengenesis[bot]andmiguel.sierra b599f031a9 fix(studio-server): make render download headers ByteString-safe (#3984)
Build RFC 6266 Content-Disposition values with an ASCII filename fallback and UTF-8 filename* parameter for each render file response. This preserves inline and attachment disposition semantics while preventing non-Latin-1 filenames from crossing the HTTP ByteString boundary.

Co-authored-by: heygengenesis[bot] <262951085+heygengenesis[bot]@users.noreply.github.com>
Co-authored-by: miguel.sierra <229591595+miguel-heygen@users.noreply.github.com>
2026-09-16 05:03:28 +00:00
heygengenesis[bot]andmiguel.sierra edb6e87ba7 fix(studio-server): make sub-composition ETags ByteString-safe (#3982)
Hash the decoded sub-composition path before including it in the preview ETag. This keeps ETags deterministic and path-specific while ensuring Hono receives an ASCII-safe header value for Unicode composition filenames.

Add regression coverage for percent-encoded CJK sub-composition paths, including stability and distinctness assertions.

Co-authored-by: heygengenesis[bot] <262951085+heygengenesis[bot]@users.noreply.github.com>
Co-authored-by: miguel.sierra <229591595+miguel-heygen@users.noreply.github.com>
2026-09-16 04:15:48 +00:00
heygengenesis[bot]andmiguel.sierra ae18e3a327 test(engine): cover held tails in HDR preflight (#3963)
Add regression coverage for finite SDR video slots that start past EOF in mixed HDR timelines, and verify lint exclusions with successful local duration probes.

Co-authored-by: heygengenesis[bot] <262951085+heygengenesis[bot]@users.noreply.github.com>
Co-authored-by: miguel.sierra <229591595+miguel-heygen@users.noreply.github.com>
2026-09-16 01:27:09 +00:00
terencecho edf6e4b373 chore: release v0.8.41 (#3966) v0.8.41 2026-09-15 17:24:09 -04:00
heygengenesis[bot]andmiguel.sierra f3bd4234f5 fix(engine): hold finite video slots past EOF (#3962)
Allow explicit finite non-looping video slots to use the existing held-final-frame extraction path when data-media-start is at or beyond source duration. Warn during project lint for local static slots that will use this behavior.

Co-authored-by: heygengenesis[bot] <262951085+heygengenesis[bot]@users.noreply.github.com>
Co-authored-by: miguel.sierra <229591595+miguel-heygen@users.noreply.github.com>
2026-09-15 19:10:33 +00:00
heygengenesis[bot]andmiguel.sierra cccc78c65e fix(studio): fail closed on backup failures (#3961)
Fail closed Studio-server mutations when a backup snapshot reports an error. Return the existing backup-failed HTTP 500 response before any raw or structured mutation can change the original.

Co-authored-by: heygengenesis[bot] <262951085+heygengenesis[bot]@users.noreply.github.com>
Co-authored-by: miguel.sierra <229591595+miguel-heygen@users.noreply.github.com>
2026-09-15 18:20:59 +00:00
miga-heygenandMiguel Angel e2d60cf27c fix(engine): keep a render's dependent extraction-cache entry alive during long captures (#3913)
The shared, size-capped video-frame extraction cache evicts entries whose
LRU-clock sentinel hasn't been touched in over an hour. That clock was set
once, at cache-hit lookup time, and never again — so a render holding a
compiled-dir symlink (or a still-open partial writer dir) into an entry for
longer than an hour could lose it to a concurrent render's GC sweep on the
same shared machine, leaving its frame reads a dangling ENOENT with no
retry.

Every active video's captured frame now renews its cache entry's clock,
throttled to once per 5 minutes per directory. touchCacheDir renews both
signals gcExtractionCache actually reads: the directory's own mtime (which
gates a still-open partial writer dir) and the completion sentinel's mtime
(which gates a published entry).

Co-authored-by: Miguel Angel <miguel.sierra@heygen.com>
2026-09-15 03:12:45 +00:00
terencechoandClaude Opus 4.8 f98b8ead37 fix(studio): guard import.meta.env reads so the player survives non-Vite ESM hosts (#3948)
In non-Vite ESM hosts, import.meta.env is undefined and direct reads crash at module load.

Guard both player reads with optional chaining. Existing Vite defaults are unchanged.

Reject future unguarded import.meta.env property access in either module.

— tai

Co-authored-by: Claude Opus 4.8 <noreply@anthropic.com>
2026-09-14 23:40:48 +00:00
James Russo 14ad0c08a3 docs(changelog): weekly digest 2026-09-07–2026-09-14 (#3939)
* docs(changelog): weekly digest 2026-09-07–2026-09-14

Rewrites the generated draft into themed sections. 113 new commits across v0.8.32 through v0.8.40.

Signed-off by Rames.

* docs(weekly-updates): embed Sep 07-14 changelog video

Adds the weekly changelog video to the Week of September 7 digest entry,
matching the DocsVideo embed convention used by the prior weeks.

Video: 57.0s, square 1080, h264 + aac. Verified through CloudFront -
content-length and SHA-256 both match the local render exactly.

- Rames Jusso
2026-09-14 11:56:50 -07:00
James Russo 8886743f44 fix(core): tell an opaque document how to actually get its Web Audio back (#3940)
The opaque-origin fix in #3937 routed correctly but sent the diagnostic down
a dead end. An opaque document reached the same `cross_origin_no_cors` verdict
a genuinely foreign asset gets, so the message told the author to "proxy or
download the asset to a same-origin URL". That is impossible advice, because
nothing is same-origin with an opaque origin and the asset is usually
same-origin by URL already.

Split the verdict into two reasons and give each its own note and remedy. The
opaque case now names the two fixes that work: `allow-same-origin` on the
sandbox, or `crossorigin` plus an `Access-Control-Allow-Origin` of `null` or
`*`. Opacity wins when both conditions hold, since it is the blocking one and
the one an author cannot fix by moving the asset.

The CLI scraper matches on the code prefix only (checkBrowser.ts:309), so the
new reason value does not touch that contract.

- Rames
2026-09-14 11:56:45 -07:00
James RussoandClaude Opus 5 e8cbf0ca85 fix(skills): keep changelog-video's stamped seams off the clip elements (#3946)
The committed changelog-video scaffold no longer survives its own gate. Three
independent breaks, all reproduced against origin/main:

1. `gsap_animates_clip_element` (error severity, shipped this week) flags
   visibility/display/autoAlpha on any clip element. The skeleton's slides are
   `class="slide clip"` and every seam seam-stamp emits writes `autoAlpha` onto
   the ledger's selectors, so a film built from the scaffold fails
   `hyperframes check` before a scene is authored. Per the rule's own fixHint,
   each slide now holds an inner `<div class="swrap">`; the `opacity: 0` base
   moves off `.slide` onto `.swrap`, and the ledger names `#w-*`.

2. The title seam then fails as `exit-visible … op 0.00` while `exit-vector`
   PASSES. seam-stamp emits a zero-duration `tl.set(autoAlpha: 0)` at the cut,
   which immediate-renders at build time, so the exit `.to()` captures 0 as its
   start and tweens 0 → 0. Every other wrapper is saved by its stamped entry
   `fromTo(..., immediateRender: false)`; the title has no stamped entry. The
   scaffold now ships that entry, and build-spec says why the flag is required.

3. `seam-gate.mjs` defaulted `--server-cmd` to `npx --yes hyperframes preview`
   — the published package — while SKILL.md forbids `npx hyperframes@latest`
   for gate 1 and calls the repo-local CLI the contract. The two gates could
   measure different runtimes. It now prefers the repo-local bin, falling back
   to npx only for a copy of the skill living outside the repo.

Also fixes gate 1's own command: `bun run --cwd packages/cli hyperframes` exits
"Script not found" because `hyperframes` is a bin, not a script.

Both mirror dirs updated; `check-skill-mirror` confirms byte-identity.

Reported by the hyperframes session after the Sep 07-14 weekly build.

Co-authored-by: Claude Opus 5 (1M context) <noreply@anthropic.com>
2026-09-14 11:56:25 -07:00
miga-heygenandMiguel Angel a0a6244be7 fix(producer): retry capture on a CDP Page.captureScreenshot refusal (#3892)
Chromium's CDP layer can refuse a screenshot capture outright ("Protocol
error (Page.captureScreenshot): Unable to capture screenshot") with no
timeout wording at all. classifyCaptureFailure() didn't recognize the
message, so it fell through to the fatal "authoring" bucket and neither
capture-retry path (the disk-capture retry loop, or the streaming-capture
pinned-fallback retry) ever attempted a retry — including under
--low-memory-mode, whose single-worker plain-screenshot capture never
engages either path's other retry conditions.

Adds the literal error text to classifyCaptureFailure()'s transient_browser
bucket, and threads the resulting classification into
shouldRetryViaPinnedFallback() as a routing-independent retry condition, so
the streaming path recovers on a fresh session the same way the disk path
already does for other transient browser failures.

Co-authored-by: Miguel Angel <miguel.sierra@heygen.com>
2026-09-14 17:06:45 +00:00
Miguel Ángel cfe5dcfad3 chore: release v0.8.40 (#3938) v0.8.40 2026-09-14 12:41:47 -04:00
Miguel Ángel 293829a2c1 fix(core): route media through Web Audio only when the document can actually read it (#3937)
isCorsSilenced() compared a media URL's origin against window.location.origin,
which stays URL-shaped even inside a sandboxed iframe without
allow-same-origin. Inside such a frame the document's actual security origin
(window.origin) is the string "null", so same-URL-origin media without a
crossorigin attribute was waved through createMediaElementSource, and per the
Web Audio spec's MediaElementAudioSourceNode security section that node
outputs silence without throwing. The composition kept playing with the
timeline advancing and no audio at all.

Compare against window.origin instead, treating "null" as never same-origin,
so an opaque document falls back to the existing decode-only path unless the
media element opts in with crossorigin.
2026-09-14 12:32:38 -04:00
Miguel Ángel d13a89b670 chore: release v0.8.39 (#3936) v0.8.39 2026-09-14 11:13:53 -04:00
Harim Kang f6041d7597 fix(lint): preserve opening-tag source bounds after multiline closes (#3917)
Capture explicit source name bounds before attributes are parsed. Preserve malformed names, Unicode lowercase expansion, and existing implied-tag ranges while retaining malformed-attribute lint failures.
2026-09-14 07:47:29 +00:00
Santhi Prakash dc6d78b462 fix(cli): assign w{index} ids when loading JSON transcripts (#3770)
loadTranscript assigns id: w{index} on the srt/vtt branches but never on
the JSON branches: parseWhisperCpp and parseOpenAI drop the field and the
words-json branch defaults it to "". Every engine funnels through
loadTranscript, and transcribeAudio rewrites transcript.json from its
output, so CLI-produced transcripts ship without the stable word ids that
transcribe.md documents for caption overrides — per-word overrides have
nothing to key on.

Assign id: w.id || `w{index}` across the JSON branches, matching the
srt/vtt behavior. || also repairs the empty-string ids older CLIs wrote
to words-json files, which otherwise collapse every word onto one key.

Signed-off-by: Santhi Prakash <b.santhiprakash@gmail.com>
2026-09-14 07:29:04 +00:00
renovate[bot] 558c11b019 chore(deps): update github-actions (#3932)
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
2026-09-14 07:20:16 +00:00
Miguel Ángel 10e8447ac0 chore: release v0.8.38 (#3929) v0.8.38 2026-09-13 22:02:19 -04:00
Miguel Ángel f059a6eb53 feat(cli): default BeginFrame, agent blank, and looks quality (#3927)
* feat(cli): render summary names the capture path, gpu mode and stage timings

* fix(lint): drop gsap_exit_missing_hard_kill, its hazard does not reproduce on cold workers

* fix(cli): render slow-path hint fires only when the gpu was auto-probed

* test(cli): isolate agent hint suite from ambient agent env keys

The suite runs inside agent sessions. Ambient env keys fill the 16-key
hint cap and fail assertions that a plain shell would pass.

* docs(music-to-video): drop leftover hard-kill mandate after lint rule removal

Frame workers still required a tl.set hard-kill that the dropped lint
rule no longer enforces. Align the self-check with montage.md.

* refactor(cli): share hint-key pattern and collapse render summary args

Export HINT_KEY_PATTERN for the test isolation strip. Read duration and
frame count from the perf summary instead of passing them beside it.

* test(cli): lock capture-mode preference and 16-key hint isolation

Session mode, including drawelement, must print over observability.
The hint suite now fails if ambient keys already fill the 16-key cap.

* feat(cli): default BeginFrame, agent blank, and looks quality

Local auto render opts out of the software-GPU screenshot clamp so
BeginFrame can run. init --agent scaffolds a centered Inter blank with
no prompts. --quality looks (now the default) is CRF 16; delivery is high.

* fix(cli): honor screenshot env and teach agent pitfalls on the happy path

Local auto still requests BeginFrame unless PRODUCER_FORCE_SCREENSHOT=true.
The agent blank fills its canvas so --resolution can resize it. Skills now
name the four pitfalls and tell agents to read the render summary line.

* feat(cli): default init to the centered blank

Bare init scaffolds the centered Inter stage. --agent is a hidden alias.

* fix(cli): pack from-file and use it for video init

TTY --video with no --example selects from-file. Pack copies that template.

* fix(cli): wire --video onto from-file even with --example blank

One resolver picks the scaffold. Spawned init --video asserts a-roll src.

* fix(cli): narrow looks CRF on the quality alias

Only looks carries crf. Typecheck failed on the union without a guard.

* style(cli): shorten render-pipeline summary comment
2026-09-13 21:44:19 -04:00
Miguel Ángel 95bea1631f refactor(skills): keep hyperframes-core as the HTML contract (#3928)
* refactor(skills): keep hyperframes-core as the HTML contract

Move brief, storyboard, review, production, dispatch, and
frame-worker docs to hyperframes. Slim remaining core references.

* fix(skills): restore camera recipes and root sizing

Restore Zoom, Ken Burns, crop, and clip-path recipes. #root is 100 percent.

* fix(skills): stamp size on the composition root

Runtime sizes the composition root, not html/body. Overlap pin requires is valid.
2026-09-13 21:20:58 -04:00
Miguel Ángel e30992fdb8 Merge pull request #3925 from heygen-com/release/v0.8.37
chore: release v0.8.37
v0.8.37
2026-09-13 13:10:06 -04:00
Miguel Angel Simon Sierra 7a5d2bf769 chore: release v0.8.37 2026-09-13 12:51:02 -04:00
Miguel Ángel cd975d8c28 fix(core/bundler): inline fonts and images so a lone bundle renders (#3590)
`bundleToSingleHtml` documented itself as producing "a single
self-contained HTML file", but `INLINE_MIME` covered only `.svg`,
`.json`, `.txt`, `.cube` and `.xml`. Every font and raster image stayed
a live project-relative reference.

That is invisible to every consumer in this repo, because each one
serves the bundled string from a server rooted at the project directory,
so the relative paths resolve. It breaks the moment the bundle is stored
on its own, with no sibling asset directory: the font 404s and the page
silently reflows in a fallback face, which is worse than a visible
failure.

Widen the inline set to fonts (woff2/woff/ttf/otf) and raster images
(png/jpg/jpeg/gif/webp/avif), behind a 2 MiB per-asset cap. The cap is
measured against this repo's own assets rather than guessed: the largest
of 164 tracked `.woff2` files is 105 KB, and the largest of 284 tracked
raster images is 2.00 MB, so everything in-tree inlines while a
video-sized file cannot. Oversized assets keep their relative URL and
warn, reusing the existing "may not be self-contained" wording.

Audio and video stay external on purpose: they are large, streamed
rather than laid out, and their absence is obvious rather than silent.
Scripts already had a better path (`script[src]` is folded in as source),
so they are deliberately not added to the MIME table.

The five rebasing tests that asserted a relative path survived now
assert the data URL's decoded content instead. That is a stronger check:
resolving from the wrong base directory finds no file, so nothing
inlines and the assertion fails.
2026-09-13 12:47:01 -04:00