Files
supertonic/rust/src/example_onnx.rs

128 lines
4.1 KiB
Rust

use anyhow::Result;
use clap::Parser;
use std::path::PathBuf;
use std::fs;
use std::mem;
mod helper;
use helper::{
load_text_to_speech, load_voice_style, timer, write_wav_file, sanitize_filename,
};
#[derive(Parser, Debug)]
#[command(name = "TTS ONNX Inference")]
#[command(about = "TTS Inference with ONNX Runtime (Rust)", long_about = None)]
struct Args {
/// Use GPU for inference (default: CPU)
#[arg(long, default_value = "false")]
use_gpu: bool,
/// Path to ONNX model directory
#[arg(long, default_value = "assets/onnx")]
onnx_dir: String,
/// Number of denoising steps
#[arg(long, default_value = "5")]
total_step: usize,
/// Number of times to generate
#[arg(long, default_value = "4")]
n_test: usize,
/// Voice style file path(s)
#[arg(long, value_delimiter = ',', default_values_t = vec!["assets/voice_styles/M1.json".to_string()])]
voice_style: Vec<String>,
/// Text(s) to synthesize
#[arg(long, value_delimiter = '|', default_values_t = vec!["This morning, I took a walk in the park, and the sound of the birds and the breeze was so pleasant that I stopped for a long time just to listen.".to_string()])]
text: Vec<String>,
/// Output directory
#[arg(long, default_value = "results")]
save_dir: String,
/// Enable batch mode (multiple text-style pairs)
#[arg(long, default_value = "false")]
batch: bool,
}
fn main() -> Result<()> {
println!("=== TTS Inference with ONNX Runtime (Rust) ===\n");
// --- 1. Parse arguments --- //
let args = Args::parse();
let total_step = args.total_step;
let n_test = args.n_test;
let voice_style_paths = &args.voice_style;
let text_list = &args.text;
let save_dir = &args.save_dir;
let batch = args.batch;
if batch {
if voice_style_paths.len() != text_list.len() {
anyhow::bail!(
"Number of voice styles ({}) must match number of texts ({})",
voice_style_paths.len(),
text_list.len()
);
}
}
let bsz = voice_style_paths.len();
// --- 2. Load TTS components --- //
let mut text_to_speech = load_text_to_speech(&args.onnx_dir, args.use_gpu)?;
// --- 3. Load voice styles --- //
let style = load_voice_style(voice_style_paths, true)?;
// --- 4. Synthesize speech --- //
fs::create_dir_all(save_dir)?;
for n in 0..n_test {
println!("\n[{}/{}] Starting synthesis...", n + 1, n_test);
let (wav, duration) = if batch {
timer("Generating speech from text", || {
text_to_speech.batch(text_list, &style, total_step)
})?
} else {
let (w, d) = timer("Generating speech from text", || {
text_to_speech.call(&text_list[0], &style, total_step, 0.3)
})?;
(w, vec![d])
};
// Save outputs
for i in 0..bsz {
let fname = format!("{}_{}.wav", sanitize_filename(&text_list[i], 20), n + 1);
let wav_slice = if batch {
let wav_len = wav.len() / bsz;
let actual_len = (text_to_speech.sample_rate as f32 * duration[i]) as usize;
let wav_start = i * wav_len;
let wav_end = wav_start + actual_len.min(wav_len);
&wav[wav_start..wav_end]
} else {
// For non-batch mode, wav is a single concatenated audio
let actual_len = (text_to_speech.sample_rate as f32 * duration[0]) as usize;
&wav[..actual_len.min(wav.len())]
};
let output_path = PathBuf::from(save_dir).join(&fname);
write_wav_file(&output_path, wav_slice, text_to_speech.sample_rate)?;
println!("Saved: {}", output_path.display());
}
}
println!("\n=== Synthesis completed successfully! ===");
// Prevent ONNX Runtime sessions from being dropped, which causes mutex cleanup issues
mem::forget(text_to_speech);
// Use _exit to bypass all cleanup handlers and avoid ONNX Runtime mutex issues on macOS
unsafe {
libc::_exit(0);
}
}