mirror of
https://github.com/heygen-com/hyperframes.git
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Miguel Ángel
c1699ec98b
* feat(core): spring physics solver + runtime fixes + spring ease editor * feat(core): spring physics solver + runtime fixes + spring ease editor Revert totalTime nudge that caused black first frames in from() tweens. Keep stale CSS offset cleanup. Regenerate baselines for offset cleanup. * ci: trigger regression run * test(producer): regenerate heygen-promo-preview-assets and style-9-prod baselines Baselines regenerated inside Dockerfile.test on the devbox to match the current runtime init.ts changes. Both pass the full regression harness with the videoStreamDurationSeconds PSNR fix. * feat(studio): design panel integration, timeline polish, feature flag * fix(studio): rotation-aware drag + auto-keyframing for resize and rotation U1: stripGsapTranslateFromTransform now rotates the offset vector by the element's CSS rotation angle before subtracting from m41/m42. Fixes elements drifting from cursor during drag when rotated. U2+U3: Add tryGsapResizeIntercept and tryGsapRotationIntercept to the runtime bridge. Resize and rotation handle changes now create keyframes via the same async pipeline as position drag. CSS path guards prevent double-persistence for GSAP-animated elements. * fix(studio): counter-rotate drag offset for css-rotated elements CSS compose order is translate → rotate → transform. The drag offset (in pre-rotation translate space) was added directly to GSAP x/y (in post-rotation transform space). Now counter-rotates the offset by the element's CSS --hf-studio-rotation angle before adding. * feat(studio): add 'delete all keyframes' to diamond context menu * fix(studio): include all animated properties in every keyframe commit Position, resize, and rotation intercepts now read ALL animated property values from gsap.getProperty() at commit time and include them in the keyframe. Prevents other properties from jumping to interpolated values between surrounding keyframes when only one property (e.g., width) was explicitly changed. * feat(core): spring physics solver + runtime fixes + spring ease editor * feat(core): spring physics solver + runtime fixes + spring ease editor Revert totalTime nudge that caused black first frames in from() tweens. Keep stale CSS offset cleanup. Regenerate baselines for offset cleanup. * ci: trigger regression run * feat(core): spring physics solver + runtime fixes + spring ease editor * feat(core): spring physics solver + runtime fixes + spring ease editor Revert totalTime nudge that caused black first frames in from() tweens. Keep stale CSS offset cleanup. Regenerate baselines for offset cleanup. * ci: trigger regression run * feat(studio): runtime-first dynamic keyframe system with auto-materialization Read GSAP keyframe data from the live runtime instead of only the AST parser. Dynamic keyframes (loops, variables, computed selectors) now show diamonds on timeline clips and animation cards in the design panel. On first edit, dynamic code is automatically materialized: - Unresolved keyframes (keyframes: kf) replaced with static object - Unresolved selectors (tl.to(sel, ...)) entire loop unrolled into individual static tl.to() calls per element Key changes: - Parser: hasUnresolvedKeyframes/hasUnresolvedSelector flags - Runtime bridge: scanAllRuntimeKeyframes reads tween.vars from iframe - Tween cache: interval-based runtime scan for dynamic animations - materializeKeyframesInScript + unrollDynamicAnimations parser functions - Keyframe cache dual-writes both sourceFile#id and index.html#id keys - commitMutation updates cache from mutation response - easeEach placement fix (inside keyframes object, not tween vars)
@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