build ffmpeg for iOS

step1、install Xcode

step2、install xcpkg

step3、update xcpkg-formula-repository

xcpkg update

step4、build and install ffmpeg

xcpkg install ffmpeg
view the formula of ffmpeg
xcpkg formula view ffmpeg

{{ formula }}
edit the formula of ffmpeg

if the formula of ffmpeg dosn't meet your needs, you can edit it ⤵︎

xcpkg formula edit ffmpeg

after editing, you may want to rebuild this package ⤵︎

xcpkg install ffmpeg