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Vance IngallsandClaude Sonnet 5
5240367150
* feat(core,studio): the character presets pitch shift unlocks Chipmunk, Giant, and Monster ship as presets on the pitchshift worklet P1 added: Chipmunk pitches up and adds sparkle, Giant pitches down with weight and a compressor to hold the extra low end together, Monster pitches down further with saturation growl and a close, tight reverb. Every param verified against the live effect registry rather than sketched — the compressor/reverb/saturate/shelf keys all match exactly. Each gets its own title treatment (font, size, tracking, hue) so the FX rack's per-preset styling coverage and hue-distance/background-uniqueness tests extend cleanly to the three new entries, and complaint-line copy in the non-voice vocabulary the audit test enforces (no speech words — "Giant" over CapCut's "Deep Voice", as the design doc records). Updates plans/audio-fx-presets.md's two limits paragraphs to record that pitch shift landed and this half of the character list now ships; Robot and Alien stay out of scope (ring modulation, still unbuilt). Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> * feat(core): the audio group model — element, membership, helpers Introduces <hf-audio-group> and data-audio-group as the group model B2–B7 and C1 build on: a non-rendering group element carries a label and (later) an FX chain, membership lives on the member's own data-audio-group attribute rather than DOM nesting, so a track removed from the document simply drops out of the group on the next resolve — nothing dangles. Groups do not nest: data-audio-group on the group element itself is ignored. A group with members but no <hf-audio-group> element still resolves, label falling back to the id, so hand-authored HTML degrades gracefully. Audio only in v1 — video members are ignored. Parse-only: nothing routes or sums audio yet (B3/B4). Adds the audio-groups canary at percentage: 0 gating the future Studio UI; the element and attribute parse and play regardless of enrollment. Verified rather than assumed per this plan's standing rule: the timeline's clip-collection selector ([data-start], [data-track-index], [data-composition-id], video, audio, img) already excludes the group element with zero changes, and no lint rule flags unknown elements or data-* attributes, so neither needed touching — confirmed by grep and by running `hyperframes lint` against a fixture containing the element (0 findings referencing it). The step doc's suggested display:none injection point (an existing base stylesheet in the runtime) does not exist in this codebase; skipped rather than inventing new infrastructure, since an empty, childless custom element already renders as a zero-size inline box with no visible output — the same reasoning the lint check above confirms empirically. Co-Authored-By: Claude Sonnet 5 <noreply@anthropic.com> --------- Co-authored-by: Claude Sonnet 5 <noreply@anthropic.com>
@hyperframes/core
Types, parsers, generators, compiler, linter, runtime, and frame adapters for the Hyperframes video framework.
Install
npm install @hyperframes/core
Most users don't need to install core directly — the CLI, producer, and studio packages depend on it internally.
What's inside
| Module | Description |
|---|---|
| Types | TimelineElement, CompositionSpec, Asset, canvas dimensions, defaults |
| Parsers | parseHtml — extract timeline elements from HTML; parseGsapScript — parse GSAP animations |
| Generators | generateHyperframesHtml — produce valid Hyperframes HTML from a composition spec |
| Compiler | compileTimingAttrs — resolve data-start / data-duration into absolute times |
| Linter | lintHyperframeHtml — validate Hyperframes HTML (missing attributes, overlapping tracks, etc.) |
| Runtime | IIFE script injected into the browser — manages seek, media playback, and the window.__hf protocol |
| Frame Adapters | Pluggable animation drivers (GSAP, Lottie, CSS, or custom) |
Frame Adapters
A frame adapter tells the engine how to seek your animation to a specific frame:
import { createGSAPFrameAdapter } from "@hyperframes/core";
const adapter = createGSAPFrameAdapter({
getTimeline: () => gsap.timeline(),
compositionId: "my-video",
});
Implement FrameAdapter for custom animation runtimes:
import type { FrameAdapter } from "@hyperframes/core";
const myAdapter: FrameAdapter = {
id: "my-adapter",
getDurationFrames: () => 300,
seekFrame: (frame) => {
/* seek your animation */
},
};
Parsing and generating HTML
import { parseHtml, generateHyperframesHtml } from "@hyperframes/core";
const { elements, metadata } = parseHtml(htmlString);
const html = generateHyperframesHtml(spec);
Linting
import { lintHyperframeHtml } from "@hyperframes/core/lint";
const result = lintHyperframeHtml(htmlString);
// result.findings: { severity, message, elementId }[]
Documentation
Full documentation: hyperframes.heygen.com/packages/core
Related packages
@hyperframes/engine— rendering engine that drives the browser@hyperframes/producer— full render pipeline (capture + encode)hyperframes— CLI