NNPkg Scripting via Micropython(or proper script language)

[chunseoklee]

Why?

To support user-defined scripting inside nnpackage to provide inter-model level control, What do we need ?

Example application :

2. Investigate logic of MTCNN model(https://arxiv.org/abs/1604.02878). MTCNN may be a good candidate for model-level logic script.

Originally posted by @chunseoklee in https://github.com/Samsung/ONE/issues/9300#issuecomment-1162600017

What?

• define nnpackage structure

nnpackage
├── metadata
│   ├── MANIFEST
│   ├── config.cfg
│   └── user-script.py
├─── model1.circle
├─── model2.circle
└─── model3.tvn

• write down user-script.py example

Here I assume python as scripting language. But subject to change

import nnfw

# at this point, we should assume that nnpkg load and prepare are done.
# Thus, before entering here, load and prepare are done implicitly by runtime.

m1, m2, m3 = nnfw.get_models()

o1, o2 = m1.run(input1)

# Several Code for manipulating t1
if o1 == o2:
   t3 = m2.run(o1)
else:
   t3 = m3.run(o2)

• Which language is good for this feature? TBD