mirror of
https://github.com/heygen-com/hyperframes.git
synced 2026-09-03 12:54:29 +00:00
Miguel Ángel
6f0b57d608
Sub-composition <head> styles targeting html/body/:root (width/height/ overflow/background) were injected into the parent document unscoped by both the Studio runtime mount (compositionLoader) and the render-time inliner (inlineSubCompositions/htmlBundler). scopeCssToComposition deliberately passed html/body/:root through unchanged, so a sub-composition smaller than the root clobbered the host <body> dimensions and its overflow:hidden clipped the composite to the last sub-comp's size. Only the top-left element painted; everything else (and framework-owned video positioned outside that box) was clipped away. Add a scopeRootSelectors option to scopeCssToComposition that remaps html/body/:root to the composition's own box, and enable it everywhere sub-composition styles are scoped. The universal selector stays untouched. Top-level composition scoping is unchanged (it legitimately owns the document). Covered by new compositionScoping tests.
@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