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Vance Ingalls
0b5f376dea
- Retract __HF_FAST_CAPTURE_AUTOALPHA__ flag via page.evaluate in all three runtime fallback paths (video gate, stacked-fade gate, 3D init failure) — previously the flag stayed set on gated renders, causing hideTransparentAutoAlphaTargets to fire and damage output up to 21 dB - Decouple recordThreeDTweenTarget from the autoAlpha rewrite flag so stacked-fade detection works even when HF_FAST_CAPTURE_AUTOALPHA=false - Add compile-time mix-blend-mode gate: compositions using mix-blend-mode route to the baseline capture path (measured 42 dB min damage on GPU) - Remove software-GL gate: Docker/SwiftShader benchmarks show parity with BeginFrame baseline; the ~0.7-0.8x figure was from a multi-worker comparison that doesn't reflect production single-worker configuration - Fix missing_data_no_timeline lint rule: boolean attribute false-positive, hyphenated-variant false-negative, missing isSubComposition guard, and external-script false-negative; add 8 regression tests - fallow: add ignorePatterns for spikes/benchmarks/chrome, ignoreExports for page.evaluate-injected initThreeDProjectionInPage, and code-duplication suppressions for pre-existing patterns in large files modified by this PR Co-Authored-By: Claude Sonnet 4.6 <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