# Third-party native dependencies

Initialize submodules:

```bash
git submodule update --init --recursive
```

| Path | Project | Use |
|------|---------|-----|
| `libvpx/` | [webmproject/libvpx](https://github.com/webmproject/libvpx) | VP8/VP9 software codec |
| `opus/` | [xiph/opus](https://github.com/xiph/opus) | Opus audio (in-band FEC) |
| `speex/` | [xiph/speex](https://github.com/xiph/speex) | Speex audio |

Built via `ndk/CMakeLists.txt` into `libandroidcast_codecs.so`.