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Python binding for Spatial Audio Framework (SAF)

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# SAFpy

[![Python application](https://github.com/chris-hld/SAFpy/actions/workflows/python-safpy.yml/badge.svg)](https://github.com/chris-hld/SAFpy/actions/workflows/python-safpy.yml)

This is a Python binding / wrapper for
https://github.com/leomccormack/Spatial_Audio_Framework

So far, there are a bunch of functions exposed, please feel free to 
add/contribute more if needed!

Install
---
1. Clone SAFpy, SAF is provided as a submodule, and change to the folder

```git clone --recursive --depth=1 https://github.com/chris-hld/SAFpy && cd SAFpy```

2. Go to the Spatial_Audio_Framework folder and compile, see instructions in its [docs](https://github.com/leomccormack/Spatial_Audio_Framework/blob/master/README.md). 
For example with

```cmake -S . -B build -DSAF_PERFORMANCE_LIB=SAF_USE_OPEN_BLAS_AND_LAPACKE && cmake --build ./build```

3. Install numpy and CFFI (in the environment you want to use), e.g. `conda install numpy cffi`
4. Now we need to build *safpy*, which creates the module. 
Running (in the environment you want to use)

```pip install -e .```

with `.` in the SAFpy folder, builds it automatically and installs any potentially missing Python dependencies.

6. (Optional) Test if everything works, run `pytest -vvv` in the SAFpy folder.

By default, SAF is assumed in a subdirectory, which is also obtained by `git submodule update --init --recursive `. 
In case you want to use a different location, you can simply adapt the variable `saf_path` in `safpy_build.py` if needed.
There you also have access to change the SAF performance library options, in case the default is not working for you.

You can also build SAFpy manually, e.g., for debugging, with 
`python safpy_build.py`.

If in trouble you can also have a look at the CI steps [here](https://github.com/chris-hld/SAFpy/blob/master/.github/workflows/python-safpy.yml).

Usage
---
Use *safpy* as a python package.
Have a look at [examples/test_call.py](https://github.com/chris-hld/SAFpy/blob/master/examples/test_call.py) and [examples/block_processing](https://github.com/chris-hld/SAFpy/blob/master/examples/block_processing.py)!

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