PyAV is a Pythonic binding for the FFmpeg libraries, aiming to provide all of the power and control of the underlying library, but manage the gritty details as much as possible.
PyAV is for direct and precise access to your media via containers, streams, packets, codecs, and frames. It exposes a few transformations of that data, and helps you get your data to/from other packages (e.g. Numpy and Pillow).