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chromaprint-web

A demo of rust-chromaprint running on the web using WebAssembly.

FAQ

Why not just use emscripten to compile the C library and write a wrapper instead of rewriting chromaprint in Rust?

Rust has wasm-bindgen which generates high level wrappers around Rust with little extra code. I wanted to try it. It doesn't make sense to do the extra work of rewriting C libraries just to use wasm-bindgen, but I wanted to make a cool demo of WebAssembly.

Why not just build a WASM wrapper around the C library and generate bindings with wasm bindgen?

I tried a bunch of things but couldn't get wasm-bindgen to work with a native (non-rust) library. I kept running into link errors. This guy seems to have gotten it to work somehow.

Why no Create React App?

I tried to use create-react-app with the bindings generated from wasm-bindgen, but it doesn't seem like create-react-app supports wasm files. I even tried adding wasm support to create-react-app, but I couldn't get it to work.. Using a handrolled webpack configuration isn't that bad actually.

Why not use parcel instead?

I couldn't get the wasm-bindgen bindings to work with parcel. Parcel doesn't support WASM imports.