Python MPA image example

david.moro

Hi, I am working on the integration of a camera on the VOXL2. The camera acts as a USB CDC device and outputs an 8-bit greyscale image on ttyACM0. The manufacturer provides a python example to talk to the camera. I was able to deploy it on the voxl2 and read the images. Now I would like to push those to a pipeline for consumption by voxl-streamer and other processes. Do you have any sample code or guidance on how to do this on python? I would like to have a functional prototype of the whole thing before porting it to C++.

Thanks!

Alex Kushleyev

@david-moro , here is a complete example that receives rtsp stream and publishes images via MPA:

https://gitlab.com/voxl-public/voxl-sdk/utilities/voxl-mpa-tools/-/blob/pympa-experimental/tools/python/rtsp_rx_mpa_pub.py

You need to build voxl-mpa-tools package from this branch and install it on VOXL2. The python scripts will get installed to /usr/share/modalai/voxl-mpa-tools/, you will need at least pympa.py which provides wrappers for python bindings for the mpa functions. libpympa.so will be installed to /usr/lib which contains the C side of the bindings.

Since you don't need opencv, you can just extract the mpa publishing part from the example and add it to your python camera code.

Alex

david.moro

Awesome! Will give it a try. Thanks @Alex-Kushleyev !

david.moro

@Alex-Kushleyev , it worked. Thanks!

Alex Kushleyev

@david-moro , awesome! thanks for confirming.

Alex