fix: piper 二进制+依赖库+config 修正 (符号链接指向正确二进制,加 LD_LIBRARY_PATH 和 -c 参数)

src/plugins/ai/backend.rs

@@ -48,6 +48,10 @@ pub struct LocalCliBackend {
     tools_dir: PathBuf,
     /// whisper-cli 依赖的库路径（libggml*.so 所在）
     whisper_lib_dir: Option<PathBuf>,
+    /// piper 依赖的库路径（libespeak-ng.so / libpiper_phonemize.so 所在）
+    piper_lib_dir: Option<PathBuf>,
+    /// piper 模型 config json 路径（.onnx.json）
+    piper_config: Option<PathBuf>,
 }
 
 impl LocalCliBackend {
@@ -55,6 +59,8 @@ impl LocalCliBackend {
         Self {
             tools_dir,
             whisper_lib_dir: None,
+            piper_lib_dir: None,
+            piper_config: None,
         }
     }
 
@@ -64,6 +70,13 @@ impl LocalCliBackend {
         self
     }
 
+    /// 设置 piper 依赖库路径和 config（部署时由 deploy_ai.sh 标定）
+    pub fn with_piper_deps(mut self, lib_dir: PathBuf, config: PathBuf) -> Self {
+        self.piper_lib_dir = Some(lib_dir);
+        self.piper_config = Some(config);
+        self
+    }
+
     fn whisper_cli(&self) -> PathBuf {
         self.tools_dir.join("whisper-cli")
     }
@@ -76,21 +89,26 @@ impl LocalCliBackend {
         self.tools_dir.join("piper")
     }
 
-    /// 给命令设置 LD_LIBRARY_PATH（whisper-cli 依赖 libggml*.so）
-    fn with_env(&self, cmd: &mut Command) {
-        if let Some(lib_dir) = &self.whisper_lib_dir {
-            cmd.env("LD_LIBRARY_PATH", lib_dir);
-        }
+    /// 给命令设置 LD_LIBRARY_PATH（合并所有库路径）
+    fn with_lib_path(&self, cmd: &mut Command, lib_dir: &Path) {
+        let existing = std::env::var("LD_LIBRARY_PATH").unwrap_or_default();
+        let new_path = if existing.is_empty() {
+            lib_dir.to_string_lossy().into_owned()
+        } else {
+            format!("{}:{}", lib_dir.to_string_lossy(), existing)
+        };
+        cmd.env("LD_LIBRARY_PATH", new_path);
     }
 }
 
 impl AiBackend for LocalCliBackend {
     fn asr(&self, audio_path: &Path, model_path: &Path) -> Result<String> {
         // whisper-cli -m <model> -f <audio> -l zh --no-timestamps -otxt -of <tmp>
-        // 输出到 <tmp>.txt，读取后返回
         let tmp_out = audio_path.with_extension("asr.txt");
         let mut cmd = Command::new(self.whisper_cli());
-        self.with_env(&mut cmd);
+        if let Some(lib_dir) = &self.whisper_lib_dir {
+            self.with_lib_path(&mut cmd, lib_dir);
+        }
         let output = cmd
             .arg("-m")
             .arg(model_path)
@@ -178,15 +196,25 @@ impl AiBackend for LocalCliBackend {
     }
 
     fn tts(&self, text: &str, model_path: &Path, output_path: &Path) -> Result<()> {
-        // echo <text> | piper -m <model> -f <output> --output_format wav
+        // echo <text> | piper -m <model> [-c <config>] -f <output> --output_format wav
+        // piper 依赖 libespeak-ng.so / libpiper_phonemize.so，需设 LD_LIBRARY_PATH
         let mut cmd = Command::new(self.piper());
+        if let Some(lib_dir) = &self.piper_lib_dir {
+            self.with_lib_path(&mut cmd, lib_dir);
+        }
         cmd.arg("-m")
             .arg(model_path)
             .arg("-f")
             .arg(output_path)
             .arg("--output_format")
-            .arg("wav")
-            .stdin(std::process::Stdio::piped())
+            .arg("wav");
+
+        // piper 需要 -c 指定 .onnx.json config 文件
+        if let Some(config) = &self.piper_config {
+            cmd.arg("-c").arg(config);
+        }
+
+        cmd.stdin(std::process::Stdio::piped())
             .stdout(std::process::Stdio::null())
             .stderr(std::process::Stdio::piped());
 
@@ -199,7 +227,8 @@ impl AiBackend for LocalCliBackend {
 
         if !output.status.success() {
             bail!(
-                "piper 失败: {}",
+                "piper 失败 (exit={}): {}",
+                output.status,
                 String::from_utf8_lossy(&output.stderr)
             );
         }

src/plugins/ai/mod.rs

@@ -48,6 +48,8 @@ impl AiPlugin {
         model_store: PathBuf,
         tools_dir: PathBuf,
         whisper_lib_dir: Option<PathBuf>,
+        piper_lib_dir: Option<PathBuf>,
+        piper_config: Option<PathBuf>,
         tmp_dir: PathBuf,
         context_window: usize,
     ) -> Self {
@@ -55,6 +57,9 @@ impl AiPlugin {
         if let Some(lib_dir) = whisper_lib_dir {
             backend_builder = backend_builder.with_whisper_lib_dir(lib_dir);
         }
+        if let (Some(lib_dir), Some(config)) = (piper_lib_dir, piper_config) {
+            backend_builder = backend_builder.with_piper_deps(lib_dir, config);
+        }
         let backend = Box::new(backend_builder);
         let models = model_manager::ModelManager::new(model_store);
         let pipeline = ChatPipeline::new(backend, models, tmp_dir, context_window);