abhiTronix/vidgear ? reverse-engineered prompt

Build me a Python library for fast video processing that makes it easy to read, write, process, and stream video in real time.

I want it to work across platforms and feel simple to use, even for someone who just wants to grab frames from a webcam, IP camera, video file, screen capture, or a streaming URL and do something with them quickly. It should also support saving video back out, streaming to web clients, and handling live video well, with good performance and solid error handling.

Please make it include clear, well documented helpers for common use cases like camera input, FFmpeg based decoding, Raspberry Pi camera support, screen recording, video stabilization, and browser based streaming. If you need to look up current docs online while implementing, go ahead. Also include tests, examples, and a clean installation and setup so people can start using it with just a few lines of code.