Download and install Emscripten follow the guide. Emscripten compiles C and C++ to WebAssembly using LLVM and Binaryen. Emscripten output can run on the Web, in Node.js, and in wasm runtimes.
Download the code which is based on RNNoise and enter the examples folder. Extract the pre-processed and post-processed parts of the project and write the code following the rnnoise_demo.c.
Download the project and checkout branch:
git clone https://github.com/miaobin/rnnoise.git && cd rnnoise
git checkout -b wasm_process origin/wasm_process
Generate the WASM file:
cd examples
emcc -g -O3 -s ALLOW_MEMORY_GROWTH=1 -s EXPORT_ALL=1 -s EXPORTED_RUNTIME_METHODS="['cwrap']" -s EXPORTED_FUNCTIONS="['_malloc', '_free']" -I ../include/ ../src/*.c ./process.c -o process/process.js
When using emcc to build to WebAssembly, you will see a .wasm file containing that code, as well as the usual .js file that is the main target of compilation. Those two are built to work together: run the .js file, and it will load and set up the WebAssembly code for you, properly setting up imports and exports for it, etc.
Load the process.js file. And the Module.onRuntimeInitialized function will be called when the runtime is fully initialized. Use Module.cwrap function to return pre_processing and post_processing JavaScript wrapper for native C functions. The processer.js file is an example of the above steps. You can easily call the pre-processing and post-processing functions.
This RNNoise project is licensed under the BSD 3-Clause "New" or "Revised" License. Learn more.