Mutualise FFmpeg builds with PyAV project?

[jlaine]

Hi @christian-vorhemus !

Following up on the discussion in pypa/auditwheel#354 I was wondering whether it would make sense to pool our resources to maintain FFmpeg builds for Python projects.

To be more specific, in order to cut down on the build time for PyAV wheels for Linux / Mac / Windows, I maintain this:

https://github.com/PyAV-Org/pyav-ffmpeg

These are builds of FFmpeg + its dependencies, built via cibuildwheel to ensure they are using the exact toolchains required for linking them in Python wheels. The output is a tarball per platform contain include and lib directories.

Windows is a special case, I have not (yet?) been able to compile FFmpeg and its dependencies from source, so I rely on third party builds.

Any thoughts?