Baizhi2503/react-native-exact-frame-extractor ? reverse-engineered prompt

Build me a React Native package for Android that can grab an exact frame from a video at a specific timestamp, not just the nearest keyframe.

I want to pass in a video URI, a time in milliseconds, and an output file path, then get back a saved JPEG of the exact frame at that moment. It should work well in React Native and Expo projects with a custom dev client, run off the main thread so it does not freeze the app, and include simple TypeScript types and a clean example of how to use it with Expo FileSystem.

Please make the Android side fast and reliable, and set it up so it can be linked into a normal React Native app too. If you need to check current docs or best practices while building it, feel free to look them up online.