Building whl files

[FanofVS]

Discussed in #1361

^{Originally posted by FanofVS April 1, 2024}
After running command 'pip install av', we can find that a whl file is downloaded, and pyav is installed by extracting it.

As we can see, the installation is like this:

I would like to know how to build such a whl file that contains all depended libraries(in the pic above, the ffmpeg libraries under the directory 'av.libs'), so that I can build one with my own ffmpeg version

[WyattBlue]

This should only be a discussion, not an issue.