Files
hyperframes/packages/producer
Miguel Ángel 072814e65c fix(core,cli,ci): harden runtime resolution + inline constant + smoke test (#458)
Guard buildHyperframesRuntimeScript() against missing entry.ts so it
returns null instead of crashing with esbuild stderr output. Add
getHyperframeRuntimeScript() that returns the pre-built IIFE as a
baked-in string constant — no esbuild, no file I/O, no import.meta.url.

Consolidate CLI runtime source resolution into a single module with
a clear priority chain: esbuild from source (dev) → inlined constant
(production) → pre-built artifact file (fallback).

Add CI smoke test that npm-packs the CLI, installs globally, runs
hyperframes preview, and asserts no stderr errors + runtime endpoint
returns JS.

Bump version to 0.4.16.
2026-04-23 21:44:26 +02:00
..

@hyperframes/producer

Full HTML-to-video rendering pipeline: capture frames with Chrome's BeginFrame API, encode with FFmpeg, mix audio — all in one call.

Install

npm install @hyperframes/producer

Requirements: Node.js >= 22, Chrome/Chromium (auto-downloaded), FFmpeg

Usage

Render a video

import { createRenderJob, executeRenderJob } from "@hyperframes/producer";

const job = createRenderJob({
  inputPath: "./my-composition.html",
  outputPath: "./output.mp4",
  width: 1920,
  height: 1080,
  fps: 30,
});

const result = await executeRenderJob(job, (progress) => {
  console.log(`${Math.round(progress.percent * 100)}%`);
});

console.log(result.outputPath); // ./output.mp4

Run as an HTTP server

The producer can also run as a render server, accepting render requests over HTTP:

import { startServer } from "@hyperframes/producer";

await startServer({ port: 8080 });
// POST /render with a RenderConfig body

Configuration

RenderConfig controls the render pipeline:

Option Default Description
inputPath Path to the HTML composition
outputPath Output video file path
width 1920 Frame width in pixels
height 1080 Frame height in pixels
fps 30 Frames per second (24, 30, or 60)
quality "standard" Encoder preset ("draft", "standard", "high")

How it works

  1. Serve — spins up a local file server for the HTML composition
  2. Capture — opens the page in headless Chrome, seeks frame-by-frame via HeadlessExperimental.beginFrame, captures screenshots
  3. Encode — pipes frames through FFmpeg (with GPU encoder detection and chunked concat)
  4. Mix — extracts <audio> elements and mixes them into the final video
  5. Finalize — applies faststart for streaming-friendly MP4

Documentation

Full documentation: hyperframes.heygen.com/packages/producer