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https://github.com/heygen-com/hyperframes.git
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Miguel Ángel
45d4a71ed0
* refactor(studio): extract shared timeline components and deduplicate code Extract shared utilities to reduce duplication across timeline components: - PlayheadIndicator: shared playhead rendering (was duplicated in TimelineCanvas and TimelineEditorNotice) - useContextMenuDismiss: outside-click/Escape dismiss pattern (was duplicated in ClipContextMenu and KeyframeDiamondContextMenu) - TimelineCallbacks: shared callback interfaces for drop and edit operations (was duplicated in NLELayout and Timeline props) - useTimelineZoom: consolidated zoom store selectors - timelineElementSplit: shared canSplitElement, buildPatchTarget, and readFileContent utilities - gsapParser.test-helpers: shared test utilities for parser specs * feat(core): GSAP-aware split engine for timeline clip splitting Add splitAnimationsInScript to the GSAP parser — correctly re-times animations when a timeline clip is split at an arbitrary position: - Animations before split: kept on original, properties inherited via tl.set inserted before other tweens for correct GSAP state recording - Animations after split: retargeted via AST selector update - Spanning animations: trimmed on original, continuation added for new element with correct position and duration - Keyframes: classified by total per-keyframe duration - Reverse iteration prevents stale animation ID collisions Enhance splitElementInHtml: - CSS rule duplication via PostCSS for ID-based styles - Server-side ID deduplication for repeated splits - Media playback-start adjustment for video/audio Add split-animations route to gsap-mutations endpoint.
@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