Added missing "mediapipe" dependency for mediapipe_face_common.py

[Ambrosiussen]

See: https://github.com/patrickvonplaten/controlnet_aux/blob/f31dbd95cf7426164d0d0f88fe7339afcfbcb668/src/controlnet_aux/mediapipe_face/mediapipe_face_common.py#LL3C1-L3C1

[jinwonkim93]

Check #29. Did not include on setup because it might cause protobuf version conflict

[Ambrosiussen]

But then why is it part of ControlNet AUX if it doesnt work??

[jinwonkim93]

You can install it seperately by pip install mediapipe

[Ambrosiussen]

Yes, I did that locally. But generally bad practice to ship code that needs a dependency not provided in a requirements.txt or setup. Maybe try to catch the exception when instantiating a mediapipe_face with the instructions on installing the missing dependency? (Or even better, add a requirements.txt)

[patrickvonplaten]

Ideally we would throw a warning if mediapipe control is imported but mediapipe is not installed. Would be happy if we can not explode the dependency tree of this package

[Ambrosiussen]

@patrickvonplaten Thoughts on adjusted code?

[patrickvonplaten]

Perfect! Thanks!