What is the license for arducam-pivariety-sdk-dev?

Raspberry Pi Cameras libcamera
1
  1. Where did you get the camera module(s)?
  • UCTRONICS
  1. Model number of the product(s)?
  • B0353
  1. What hardware/platform were you working on?
  • Raspberry Pi Zero 2 W
  1. What help do you need?

To build the libcamera provided by Arducam, we need the arducam-pivariety-sdk-dev on the GitHub link below [*1]

[*1] GitHub - ArduCAM/arducam_ppa

However, the source code for arducam-pivariety-sdk-dev is not provided, and there is no license description.
What is the license for arducam-pivariety-sdk-dev?
And can we redistribute the binaries and header file included in arducam-pivariety-sdk-dev?

BTW, I found the related topics below.

However, we have not open sourced the ipa part of libcamera (it is under the BSD-2 protocol)