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prevent panic on paraformer engine init failure #36

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prevent panic on paraformer engine init failure #36

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65 changes: 43 additions & 22 deletions node-hub/dora-funasr-mlx/src/main.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -49,7 +49,10 @@ fn main() -> Result<()> {
let start = Instant::now();
match ParaformerEngine::new(&config.model_dir) {
Ok(e) => {
log::info!("Engine initialized in {:.2}s", start.elapsed().as_secs_f32());
log::info!(
"Engine initialized in {:.2}s",
start.elapsed().as_secs_f32()
);
Some(e)
}
Err(e) => {
Expand Down Expand Up @@ -100,32 +103,43 @@ fn main() -> Result<()> {
}
}

let engine = engine.as_mut().unwrap();
let engine = match engine.as_mut() {
Some(e) => e,
None => {
log::error!("ASR engine not available, skipping audio frame");
send_log(
&mut node,
"ERROR",
"ASR engine not available, skipping audio frame",
)?;
continue;
}
};

// Extract metadata
let question_id = metadata
.parameters
.get("question_id")
.and_then(|p| match p {
Parameter::String(s) => s.parse::<u64>().ok(),
Parameter::Integer(i) => Some(*i as u64),
_ => None,
});
let question_id =
metadata
.parameters
.get("question_id")
.and_then(|p| match p {
Parameter::String(s) => s.parse::<u64>().ok(),
Parameter::Integer(i) => Some(*i as u64),
_ => None,
});
let segment = metadata.parameters.get("segment").and_then(|p| match p {
Parameter::String(s) => s.parse::<u64>().ok(),
Parameter::Integer(i) => Some(*i as u64),
_ => None,
});
let sample_rate =
metadata
.parameters
.get("sample_rate")
.and_then(|p| match p {
Parameter::String(s) => s.parse::<u32>().ok(),
Parameter::Integer(i) => Some(*i as u32),
_ => None,
})
.unwrap_or(16000);
let sample_rate = metadata
.parameters
.get("sample_rate")
.and_then(|p| match p {
Parameter::String(s) => s.parse::<u32>().ok(),
Parameter::Integer(i) => Some(*i as u32),
_ => None,
})
.unwrap_or(16000);

// Convert Arrow data to f32 samples
let samples = match extract_audio_samples(&data) {
Expand Down Expand Up @@ -256,7 +270,10 @@ fn process_audio(
// Build output metadata
let mut metadata: BTreeMap<String, Parameter> = BTreeMap::new();
if let Some(qid) = question_id {
metadata.insert("question_id".to_string(), Parameter::String(qid.to_string()));
metadata.insert(
"question_id".to_string(),
Parameter::String(qid.to_string()),
);
}
if let Some(seg) = segment {
metadata.insert("segment".to_string(), Parameter::String(seg.to_string()));
Expand Down Expand Up @@ -329,7 +346,11 @@ fn handle_control_command(
send_log(node, "INFO", &format!("Stats: {}", stats))?;
}
"cleanup" | "reset" => {
send_log(node, "INFO", "Engine reset (no-op for stateless Paraformer)")?;
send_log(
node,
"INFO",
"Engine reset (no-op for stateless Paraformer)",
)?;
}
_ => {
log::warn!("Unknown control command: {}", command);
Expand Down