Miguel Ángel dc0d69a21b feat(producer): support entryFile for rendering individual compositions (#42)
## Changes

- Add optional `entryFile` parameter to render API endpoints (`/v1/render` and `/v1/render-stream`)
- Enable rendering individual sub-compositions by extracting them from index.html context when the entry file is a `<template>` wrapper
- Change base64 audio/video linting from detecting "fabricated" media to prohibiting all inline base64 media
- Add manifest path resolution for bundled producer deployments

## API Changes

- `RenderConfig` — new optional `entryFile` field for specifying HTML file to render
- `server.ts` — parses `entryFile` from request body, validates file exists in project directory
- `executeRenderJob` — uses `entryFile` instead of hardcoded `"index.html"`

## Template Extraction

- `extractStandaloneEntryFromIndex` — extracts sub-composition hosts from index.html and creates standalone render context
- Handles `<template>` entry files by finding matching `data-composition-src` in index.html and isolating that host
- Resets `data-start` to 0 for standalone rendering

## Linting Updates

- Change rule #3.7 from detecting "fabricated" base64 media to prohibiting all inline base64 audio/video
- Lower detection threshold from 100+ to 20+ base64 characters
- All base64 media now triggers error severity with clearer messaging about file size bloat

## Usage

```json
POST /v1/render-stream
{ "projectDir": "/path/to/project", "entryFile": "compositions/intro.html" }
```

Omit `entryFile` for default behavior (renders `index.html`).
2026-03-27 04:28:51 +01:00
2026-03-21 22:43:56 -07:00
2026-03-21 22:43:56 -07:00

Hyperframes

Node.js

Write HTML. Render video. Built for agents.

Hyperframes is an open-source video rendering framework that lets you create, preview, and render HTML-based video compositions — with first-class support for AI agents via MCP.

Why Hyperframes?

  • HTML-native — AI agents already speak HTML. No React required.
  • Frame Adapter pattern — bring your own animation runtime (GSAP, Lottie, CSS, Three.js).
  • Deterministic rendering — same input = identical output. Built for automated pipelines.
  • AI-first design — not a bolted-on afterthought.

Quick Start

npx hyperframes init my-video
cd my-video
npx hyperframes dev      # preview in browser
npx hyperframes render   # render to MP4

Requirements: Node.js >= 22, FFmpeg

How It Works

Define your video as HTML with data attributes:

<div id="stage" data-composition-id="my-video" data-start="0" data-width="1920" data-height="1080">
  <video
    id="clip-1"
    data-start="0"
    data-duration="5"
    data-track="0"
    src="intro.mp4"
    muted
    playsinline
  ></video>
  <img id="overlay" data-start="2" data-duration="3" data-track="1" src="logo.png" />
  <audio
    id="bg-music"
    data-start="0"
    data-duration="9"
    data-track="2"
    data-volume="0.5"
    src="music.wav"
  ></audio>
</div>

Preview instantly in the browser. Render to MP4 locally. Let AI agents compose videos using tools they already understand.

Packages

Package Description
hyperframes CLI — create, preview, lint, and render compositions
@hyperframes/core Types, parsers, generators, linter, runtime, frame adapters
@hyperframes/engine Seekable page-to-video capture engine (Puppeteer + FFmpeg)
@hyperframes/producer Full rendering pipeline (capture + encode + audio mix)
@hyperframes/studio Browser-based composition editor UI

Documentation

Full docs at hyperframes.heygen.com — includes guides, concepts, API reference, and package documentation.

Contributing

See CONTRIBUTING.md for guidelines on how to contribute.

License

See LICENSE for details.

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Write HTML. Render video. Built for agents.
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