Small working example of communication between python and c++ code. The python client reads images from files and encodes them into base64. These are then sent to OpenFace. OpenFace extracts the action units (AU) and sends them back to the python client.
The python code can be found in py/. When the python client is executed it sends the first image, waits for the reply and sends the next one. This is done with all 6 images. Start the OpenFace extractor first, wait until the models are loaded and then start the python client.
This has only been tested for macOS.
The code can be found in open-face-extractor/. To build the code the contents of open-face-extractor/ must be placed into the exe/OwnExtractor folder of OpenFace. Additionally this line must be added to OpenFace/CMakeLists.txt:
add_subdirectory(exe/OwnExtractor)
To build OpenFace follow the instructions in the wiki.
When the binary is executed it waits for an image and replies. Then it waits for another image.
Used Libraries: