React Native Reels Export Pipeline

I need a fully native media-export pipeline inside my existing React Native app for both iOS and Android. When the user taps the export button, the module should take the photos, videos, and audio tracks they have picked, decode them natively, composite the frames with smooth, dynamic transitions, run hardware-accelerated H.264 encoding, and finally hand back a ready-to-share MP4—either saved locally or sent straight to my upload API. Think of the workflow you might build with ffmpeg in the browser, but executed on-device with platform-specific performance and without round-tripping to a server. I’m expecting real-time or near real-time processing, clean audio sync, and minimal memory overhead. The solution must be exposed to JavaScript through a clean React Native bridge so I can call it with a single function and receive progress callbacks. Deliverables • Native iOS and Android modules (Obj-C/Swift and Kotlin/Java) bridged to React Native • Example React Native code that selects media, triggers export on button click, tracks progress, and receives the final file path or upload confirmation • Build/installation instructions and notes on any device-level requirements (e.g., codec support) • Brief performance benchmark on a mid-range device for each platform Acceptance will be based on flawless playback of the generated MP4, stable memory usage during long exports, and lossless audio alignment.

Project ID: 40494495