How to rebuild single component if targeting multiple architectures?

[T-10001]

Build instructions say

Rebuilding a single component
If you've made changes to a single component (e.g. ffmpeg or mpv) and want a new build you can of course just run ./buildall.sh but it's also possible to just build a single component like this:

./buildall.sh -n ffmpeg
# optional: add --clean to build from a clean state
Note that you might need to be rebuild for other architectures (--arch) too depending on your device.

So, if we run ./buildall.sh -n ffmpeg and we are targeting multiple architectures like x86_64 and arm64, do we also need to run

./buildall.sh --arch arm64 mpv
./buildall.sh --arch x86_64 mpv

again and then ./buildall.sh -n?

Additional information

[sfan5]

If you want to rebuild a single component for multiple architectures the process would be:

• ./buildall.sh -n ffmpeg
• ./buildall.sh -n ffmpeg --arch arm64
• ./buildall.sh -n ffmpeg --arch x86_64
• ./buildall.sh -n (jni/gradle build -> APK)

Note that depending on how the library is linked you might have to run a full rebuild. FFmpeg and mpv are dynamically linked, so it works in this example.