VOICEVOX CORE Rust Bindings

This is an unofficial Rust FFI wrapper for VOICEVOX CORE. It provides a high-level API for calling VOICEVOX CORE. It also provides a low-level API for directly calling the ffi provided by VOICEVOX CORE.

Running the Sample

Required

Please download VOICEVOX CORE using the following method. https://github.com/VOICEVOX/voicevox_core#%E7%92%B0%E5%A2%83%E6%A7%8B%E7%AF%89

Sample

``` use std::io::Write; use vvcore::*;

fn main() { let dir = std::ffi::CString::new("openjtalkdicutf8-1.11").unwrap(); let vvc = VoicevoxCore::newfromoptions(AccelerationMode::Auto, 0, true, dir.ascstr()).unwrap();

let text: &str = "こんにちは";
let speaker: u32 = 1;
let wav = vvc.tts_simple(text, speaker).unwrap();

let mut file = std::fs::File::create("audio.wav").unwrap();
file.write_all(&wav.as_slice()).unwrap();

} ```

Build and Execution

Please note that the files inside the downloaded voicevoxcore directory are required at runtime, so please place the built binary file in the downloaded voicevoxcore directory and execute it.

Compatibility

The following functions are available as high-level APIs. In the high-level API, initialization functions and free functions are implemented by RAII. Also, all functions can be referenced as unsafe functions in the api module.

• [x] voicevoxmakedefaultinitializeoptions
• [x] voicevoxgetversion
• [x] voicevoxloadmodel
• [x] voicevoxisgpu_mode
• [x] voicevoxismodel_loaded
• [x] voicevoxgetmetas_json
• [x] voicevoxgetsupporteddevicesjson
• [x] voicevoxpredictduration
• [x] voicevoxpredictintonation
• [x] voicevox_decode
• [x] voicevoxmakedefaultaudioquery_options
• [x] voicevoxaudioquery
• [x] voicevoxmakedefaultsynthesisoptions
• [x] voicevox_synthesis
• [x] voicevoxmakedefaultttsoptions
• [x] voicevox_tts
• [x] voicevoxerrorresulttomessage
• [x] ~~voicevox_initialize~~
• [x] ~~voicevox_finalize~~
• [x] ~~voicevoxpredictdurationdatafree~~
• [x] ~~voicevoxpredictintonationdatafree~~
• [x] ~~voicevoxdecodedata_free~~
• [x] ~~voicevoxaudioqueryjsonfree~~
• [x] ~~voicevoxwavfree~~

Running the Test

Example of running on Linux.

Note that it can only be executed in a single thread.

```

Clone repository

git clone https://github.com/iwase22334/voicevox-core-rs cd voicevox-core-rs

Download voicevox core

binary=download-linux-x64 curl -sSfL https://github.com/VOICEVOX/voicevox_core/releases/latest/download/${binary} -o download chmod +x download ./download

Run test

(export LDLIBRARYPATH=./voicevoxcore:$LDLIBRARY_PATH && cargo test -- --test-threads=1) ```