From 6f8a80a58ab92fbfb206f75dd0fc276f014ea617 Mon Sep 17 00:00:00 2001
From: Eric Coissac <eric@coissac.eu>
Date: Thu, 26 Feb 2026 20:18:14 +0100
Subject: [PATCH] =?UTF-8?q?Refactorisation=20des=20n=C5=93uds=20audio=20po?=
 =?UTF-8?q?ur=20utiliser=20boxed()?=
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Cette mise à jour refactorise les nœuds audio pour utiliser la méthode `boxed()` lors de l'enregistrement des enfants, améliorant ainsi la cohérence et la lisibilité du code. Les méthodes `make()` sont ajoutées pour faciliter la création d'instances boxées des nœuds, et les exemples sont mis à jour en conséquence.
---
 pmoaudio/examples/convert_to_flac24.rs    |   4 +-
 pmoaudio/examples/file_nodes_test.rs      |   2 +-
 pmoaudio/examples/play_audio.rs           |   2 +-
 pmoaudio/examples/play_with_resampling.rs |  24 ++---
 pmoaudio/src/nodes/audio_sink.rs          |  12 ++-
 pmoaudio/src/nodes/converter_nodes.rs     | 121 ++++++++++++++++------
 pmoaudio/src/nodes/file_source.rs         |  13 ++-
 pmoaudio/src/nodes/flac_file_sink.rs      |  16 ++-
 pmoaudio/src/nodes/http_source.rs         |  13 ++-
 pmoaudio/src/nodes/resampling_node.rs     |  13 ++-
 pmoaudio/src/nodes/timer_buffer_node.rs   |  13 ++-
 pmoaudio/src/nodes/timer_node.rs          |  13 ++-
 pmoaudio/src/pipeline.rs                  |   8 ++
 pmoparadise/examples/download_block.rs    |   2 +-
 pmoparadise/examples/play_and_cache.rs    |   6 +-
 pmowebrenderer/src/pipeline.rs            |  10 +-
 16 files changed, 180 insertions(+), 92 deletions(-)

diff --git a/pmoaudio/examples/convert_to_flac24.rs b/pmoaudio/examples/convert_to_flac24.rs
index b27b7bb0..acb174cc 100755
--- a/pmoaudio/examples/convert_to_flac24.rs
+++ b/pmoaudio/examples/convert_to_flac24.rs
@@ -70,8 +70,8 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let sink = FlacFileSink::new(output_path);
 
     // Construire la chaîne: source → converter → sink
-    converter.register(Box::new(sink));
-    source.register(converter);
+    converter.register(sink.boxed());
+    source.register(converter.boxed());
 
     // Créer un token d'arrêt pour contrôle manuel si besoin
     let stop_token = CancellationToken::new();
diff --git a/pmoaudio/examples/file_nodes_test.rs b/pmoaudio/examples/file_nodes_test.rs
index e40f1d5e..758d2b6b 100755
--- a/pmoaudio/examples/file_nodes_test.rs
+++ b/pmoaudio/examples/file_nodes_test.rs
@@ -38,7 +38,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let sink = FlacFileSink::new(output_path);
 
     // Enregistrer le sink comme enfant de la source
-    source.register(Box::new(sink));
+    source.register(sink.boxed());
 
     // Créer un token d'arrêt pour contrôle manuel si besoin
     let stop_token = CancellationToken::new();
diff --git a/pmoaudio/examples/play_audio.rs b/pmoaudio/examples/play_audio.rs
index 07f2bfbf..c3ed80e0 100644
--- a/pmoaudio/examples/play_audio.rs
+++ b/pmoaudio/examples/play_audio.rs
@@ -34,7 +34,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let sink = AudioSink::new();
 
     // Connecter la source au sink
-    source.register(Box::new(sink));
+    source.register(sink.boxed());
 
     println!("Démarrage de la lecture...");
     println!("Appuyez sur Ctrl+C pour arrêter");
diff --git a/pmoaudio/examples/play_with_resampling.rs b/pmoaudio/examples/play_with_resampling.rs
index 2b856672..3bac8c0b 100644
--- a/pmoaudio/examples/play_with_resampling.rs
+++ b/pmoaudio/examples/play_with_resampling.rs
@@ -35,22 +35,16 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     println!("Lecture de: {}", file_path);
     println!("Sample rate cible: {} Hz", target_sample_rate);
 
-    // Créer la source audio
-    let mut source = FileSource::new(file_path).await?;
-
-    // Créer le nœud de resampling
-    let mut resampler = ResamplingNode::new(target_sample_rate);
-
-    // Créer le nœud de conversion vers I24
-    let mut converter = ToI24Node::new();
-
-    // Créer le sink audio avec volume à 80%
-    let sink = AudioSink::with_volume(0.8);
-
     // Construire le pipeline: Source → Resampler → Converter → Sink
-    source.register(Box::new(resampler));
-    resampler.register(Box::new(converter));
-    converter.register(Box::new(sink));
+    let sink = AudioSink::new();
+    let mut converter = ToI24Node::new();
+    converter.register(sink.boxed());
+
+    let mut resampler = ResamplingNode::new(target_sample_rate);
+    resampler.register(converter.boxed());
+
+    let mut source = FileSource::new(file_path);
+    source.register(resampler.boxed());
 
     println!(
         "Pipeline créé: FileSource → Resampling({} Hz) → ToI24 → AudioSink",
diff --git a/pmoaudio/src/nodes/audio_sink.rs b/pmoaudio/src/nodes/audio_sink.rs
index 4ba91f19..f995800d 100644
--- a/pmoaudio/src/nodes/audio_sink.rs
+++ b/pmoaudio/src/nodes/audio_sink.rs
@@ -547,19 +547,23 @@ impl AudioSink {
         }
     }
 
+    pub fn make() -> Box<dyn AudioPipelineNode> {
+        Self::new().boxed()
+    }
+
     /// Crée un nouveau AudioSink avec une taille de channel personnalisée
-    pub fn with_channel_size(channel_size: usize) -> Self {
+    pub fn with_channel_size(channel_size: usize) -> Box<dyn AudioPipelineNode> {
         Self {
             inner: Node::new_with_input(AudioSinkLogic::new(), channel_size),
-        }
+        }.boxed()
     }
 
     /// Crée un AudioSink avec null output (pour tests sans carte audio)
     /// Consomme les segments audio sans les jouer
-    pub fn with_null_output() -> Self {
+    pub fn with_null_output() -> Box<dyn AudioPipelineNode> {
         Self {
             inner: Node::new_with_input(AudioSinkLogic::with_null_output(), DEFAULT_CHANNEL_SIZE),
-        }
+        }.boxed()
     }
 }
 
diff --git a/pmoaudio/src/nodes/converter_nodes.rs b/pmoaudio/src/nodes/converter_nodes.rs
index 952cf3ae..925ef3c0 100755
--- a/pmoaudio/src/nodes/converter_nodes.rs
+++ b/pmoaudio/src/nodes/converter_nodes.rs
@@ -22,6 +22,7 @@ use std::sync::Arc;
 use tokio::sync::mpsc;
 use tokio_util::sync::CancellationToken;
 
+
 /// Logique de conversion générique
 ///
 /// Cette struct contient la logique pure de conversion d'un type vers un autre.
@@ -112,102 +113,162 @@ where
 // ═══════════════════════════════════════════════════════════════════════════
 
 /// Node de conversion vers I16 (16-bit signed integer)
-pub struct ToI16Node;
+pub struct ToI16Node(Node<ConverterLogic<fn(&AudioChunk) -> AudioChunk>>);
 
 impl ToI16Node {
-    pub fn new() -> Box<dyn AudioPipelineNode> {
-        Self::with_channel_size(16)
+    pub fn new() -> Self {
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_i16()), 16))
+    }
+
+    pub fn make() -> Box<dyn AudioPipelineNode> {
+        Self::new().boxed()
     }
 
     pub fn with_channel_size(channel_size: usize) -> Box<dyn AudioPipelineNode> {
-        let logic = ConverterLogic::new(|chunk: &AudioChunk| chunk.to_i16());
-        Box::new(Node::new_with_input(logic, channel_size))
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_i16()), channel_size)).boxed()
     }
 }
 
 impl Default for ToI16Node {
     fn default() -> Self {
-        Self
+        Self::new()
+    }
+}
+
+#[async_trait::async_trait]
+impl AudioPipelineNode for ToI16Node {
+    fn get_tx(&self) -> Option<mpsc::Sender<Arc<AudioSegment>>> { self.0.get_tx() }
+    fn register(&mut self, child: Box<dyn AudioPipelineNode>) { self.0.register(child) }
+    async fn run(self: Box<Self>, stop_token: CancellationToken) -> Result<(), AudioError> {
+        Box::new(self.0).run(stop_token).await
     }
 }
 
 /// Node de conversion vers I24 (24-bit signed integer)
-pub struct ToI24Node;
+pub struct ToI24Node(Node<ConverterLogic<fn(&AudioChunk) -> AudioChunk>>);
 
 impl ToI24Node {
-    pub fn new() -> Box<dyn AudioPipelineNode> {
-        Self::with_channel_size(16)
+    pub fn new() -> Self {
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_i24()), 16))
+    }
+
+    pub fn make() -> Box<dyn AudioPipelineNode> {
+        Self::new().boxed()
     }
 
     pub fn with_channel_size(channel_size: usize) -> Box<dyn AudioPipelineNode> {
-        let logic = ConverterLogic::new(|chunk: &AudioChunk| chunk.to_i24());
-        Box::new(Node::new_with_input(logic, channel_size))
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_i24()), channel_size)).boxed()
     }
 }
 
 impl Default for ToI24Node {
     fn default() -> Self {
-        Self
+        Self::new()
+    }
+}
+
+#[async_trait::async_trait]
+impl AudioPipelineNode for ToI24Node {
+    fn get_tx(&self) -> Option<mpsc::Sender<Arc<AudioSegment>>> { self.0.get_tx() }
+    fn register(&mut self, child: Box<dyn AudioPipelineNode>) { self.0.register(child) }
+    async fn run(self: Box<Self>, stop_token: CancellationToken) -> Result<(), AudioError> {
+        Box::new(self.0).run(stop_token).await
     }
 }
 
 /// Node de conversion vers I32 (32-bit signed integer)
-pub struct ToI32Node;
+pub struct ToI32Node(Node<ConverterLogic<fn(&AudioChunk) -> AudioChunk>>);
 
 impl ToI32Node {
-    pub fn new() -> Box<dyn AudioPipelineNode> {
-        Self::with_channel_size(16)
+    pub fn new() -> Self {
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_i32()), 16))
+    }
+
+    pub fn make() -> Box<dyn AudioPipelineNode> {
+        Self::new().boxed()
     }
 
     pub fn with_channel_size(channel_size: usize) -> Box<dyn AudioPipelineNode> {
-        let logic = ConverterLogic::new(|chunk: &AudioChunk| chunk.to_i32());
-        Box::new(Node::new_with_input(logic, channel_size))
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_i32()), channel_size)).boxed()
     }
 }
 
 impl Default for ToI32Node {
     fn default() -> Self {
-        Self
+        Self::new()
+    }
+}
+
+#[async_trait::async_trait]
+impl AudioPipelineNode for ToI32Node {
+    fn get_tx(&self) -> Option<mpsc::Sender<Arc<AudioSegment>>> { self.0.get_tx() }
+    fn register(&mut self, child: Box<dyn AudioPipelineNode>) { self.0.register(child) }
+    async fn run(self: Box<Self>, stop_token: CancellationToken) -> Result<(), AudioError> {
+        Box::new(self.0).run(stop_token).await
     }
 }
 
 /// Node de conversion vers F32 (32-bit floating point)
-pub struct ToF32Node;
+pub struct ToF32Node(Node<ConverterLogic<fn(&AudioChunk) -> AudioChunk>>);
 
 impl ToF32Node {
-    pub fn new() -> Box<dyn AudioPipelineNode> {
-        Self::with_channel_size(16)
+    pub fn new() -> Self {
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_f32()), 16))
+    }
+
+    pub fn make() -> Box<dyn AudioPipelineNode> {
+        Self::new().boxed()
     }
 
     pub fn with_channel_size(channel_size: usize) -> Box<dyn AudioPipelineNode> {
-        let logic = ConverterLogic::new(|chunk: &AudioChunk| chunk.to_f32());
-        Box::new(Node::new_with_input(logic, channel_size))
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_f32()), channel_size)).boxed()
     }
 }
 
 impl Default for ToF32Node {
     fn default() -> Self {
-        Self
+        Self::new()
+    }
+}
+
+#[async_trait::async_trait]
+impl AudioPipelineNode for ToF32Node {
+    fn get_tx(&self) -> Option<mpsc::Sender<Arc<AudioSegment>>> { self.0.get_tx() }
+    fn register(&mut self, child: Box<dyn AudioPipelineNode>) { self.0.register(child) }
+    async fn run(self: Box<Self>, stop_token: CancellationToken) -> Result<(), AudioError> {
+        Box::new(self.0).run(stop_token).await
     }
 }
 
 /// Node de conversion vers F64 (64-bit floating point)
-pub struct ToF64Node;
+pub struct ToF64Node(Node<ConverterLogic<fn(&AudioChunk) -> AudioChunk>>);
 
 impl ToF64Node {
-    pub fn new() -> Box<dyn AudioPipelineNode> {
-        Self::with_channel_size(16)
+    pub fn new() -> Self {
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_f64()), 16))
+    }
+
+    pub fn make() -> Box<dyn AudioPipelineNode> {
+        Self::new().boxed()
     }
 
     pub fn with_channel_size(channel_size: usize) -> Box<dyn AudioPipelineNode> {
-        let logic = ConverterLogic::new(|chunk: &AudioChunk| chunk.to_f64());
-        Box::new(Node::new_with_input(logic, channel_size))
+        Self(Node::new_with_input(ConverterLogic::new(|chunk: &AudioChunk| chunk.to_f64()), channel_size)).boxed()
     }
 }
 
 impl Default for ToF64Node {
     fn default() -> Self {
-        Self
+        Self::new()
+    }
+}
+
+#[async_trait::async_trait]
+impl AudioPipelineNode for ToF64Node {
+    fn get_tx(&self) -> Option<mpsc::Sender<Arc<AudioSegment>>> { self.0.get_tx() }
+    fn register(&mut self, child: Box<dyn AudioPipelineNode>) { self.0.register(child) }
+    async fn run(self: Box<Self>, stop_token: CancellationToken) -> Result<(), AudioError> {
+        Box::new(self.0).run(stop_token).await
     }
 }
 
diff --git a/pmoaudio/src/nodes/file_source.rs b/pmoaudio/src/nodes/file_source.rs
index ccd7bf07..ff5de77c 100755
--- a/pmoaudio/src/nodes/file_source.rs
+++ b/pmoaudio/src/nodes/file_source.rs
@@ -224,18 +224,21 @@ impl FileSource {
     ///
     /// * `path` - chemin du fichier audio à lire
     pub fn new<P: Into<PathBuf>>(path: P) -> Self {
-        Self::with_chunk_size(path, 0) // 0 = auto-calculer
+        let logic = FileSourceLogic::new(path, 0);
+        Self { inner: Node::new_source(logic) }
+    }
+
+    pub fn make<P: Into<PathBuf>>(path: P) -> Box<dyn AudioPipelineNode> {
+        Self::new(path).boxed()
     }
 
     /// Crée une nouvelle source de fichier avec une taille de chunk spécifique.
     ///
     /// * `path` - chemin du fichier audio à lire
     /// * `chunk_frames` - nombre d'échantillons par canal par chunk (0 = auto)
-    pub fn with_chunk_size<P: Into<PathBuf>>(path: P, chunk_frames: usize) -> Self {
+    pub fn with_chunk_size<P: Into<PathBuf>>(path: P, chunk_frames: usize) -> Box<dyn AudioPipelineNode> {
         let logic = FileSourceLogic::new(path, chunk_frames);
-        Self {
-            inner: Node::new_source(logic),
-        }
+        Self { inner: Node::new_source(logic) }.boxed()
     }
 }
 
diff --git a/pmoaudio/src/nodes/flac_file_sink.rs b/pmoaudio/src/nodes/flac_file_sink.rs
index 8b22d8d3..124b6ad5 100755
--- a/pmoaudio/src/nodes/flac_file_sink.rs
+++ b/pmoaudio/src/nodes/flac_file_sink.rs
@@ -305,7 +305,12 @@ impl FlacFileSink {
     /// * `base_path` - Chemin de base pour les fichiers FLAC. Si des TrackBoundary sont reçus,
     ///   des fichiers seront créés avec des suffixes (_01, _02, etc.)
     pub fn new<P: Into<PathBuf>>(base_path: P) -> Self {
-        Self::with_channel_size(base_path, DEFAULT_CHANNEL_SIZE)
+        let logic = FlacFileSinkLogic::new(base_path, EncoderOptions::default(), 8);
+        Self { inner: Node::new_with_input(logic, DEFAULT_CHANNEL_SIZE) }
+    }
+
+    pub fn make<P: Into<PathBuf>>(base_path: P) -> Box<dyn AudioPipelineNode> {
+        Self::new(base_path).boxed()
     }
 
     /// Crée un sink FLAC avec une taille de buffer MPSC personnalisée.
@@ -314,8 +319,9 @@ impl FlacFileSink {
     ///
     /// * `base_path` - Chemin de base pour les fichiers FLAC
     /// * `channel_size` - Taille du buffer MPSC (nombre de segments en attente avant backpressure)
-    pub fn with_channel_size<P: Into<PathBuf>>(base_path: P, channel_size: usize) -> Self {
-        Self::with_config(base_path, channel_size, EncoderOptions::default())
+    pub fn with_channel_size<P: Into<PathBuf>>(base_path: P, channel_size: usize) -> Box<dyn AudioPipelineNode> {
+        let logic = FlacFileSinkLogic::new(base_path, EncoderOptions::default(), 8);
+        Self { inner: Node::new_with_input(logic, channel_size) }.boxed()
     }
 
     /// Crée un sink FLAC avec une configuration complète.
@@ -329,11 +335,11 @@ impl FlacFileSink {
         base_path: P,
         channel_size: usize,
         encoder_options: EncoderOptions,
-    ) -> Self {
+    ) -> Box<dyn AudioPipelineNode> {
         let logic = FlacFileSinkLogic::new(base_path, encoder_options, 8);
         Self {
             inner: Node::new_with_input(logic, channel_size),
-        }
+        }.boxed()
     }
 }
 
diff --git a/pmoaudio/src/nodes/http_source.rs b/pmoaudio/src/nodes/http_source.rs
index b6718336..3ca51ae3 100755
--- a/pmoaudio/src/nodes/http_source.rs
+++ b/pmoaudio/src/nodes/http_source.rs
@@ -297,7 +297,12 @@ impl HttpSource {
     /// let source = HttpSource::new("http://example.com/music.flac");
     /// ```
     pub fn new<S: Into<String>>(url: S) -> Self {
-        Self::with_chunk_size(url, 0)
+        let logic = HttpSourceLogic::new(url.into(), 0);
+        Self { inner: Node::new_source(logic) }
+    }
+
+    pub fn make<S: Into<String>>(url: S) -> Box<dyn AudioPipelineNode> {
+        Self::new(url).boxed()
     }
 
     /// Crée une nouvelle source HTTP avec une taille de chunk spécifique.
@@ -315,11 +320,9 @@ impl HttpSource {
     /// // Utiliser des chunks de 2048 frames
     /// let source = HttpSource::with_chunk_size("http://example.com/music.mp3", 2048);
     /// ```
-    pub fn with_chunk_size<S: Into<String>>(url: S, chunk_frames: usize) -> Self {
+    pub fn with_chunk_size<S: Into<String>>(url: S, chunk_frames: usize) -> Box<dyn AudioPipelineNode> {
         let logic = HttpSourceLogic::new(url.into(), chunk_frames);
-        Self {
-            inner: Node::new_source(logic),
-        }
+        Self { inner: Node::new_source(logic) }.boxed()
     }
 
     pub fn get_url(&self) -> String {
diff --git a/pmoaudio/src/nodes/resampling_node.rs b/pmoaudio/src/nodes/resampling_node.rs
index 7cbac24b..de17e5bb 100644
--- a/pmoaudio/src/nodes/resampling_node.rs
+++ b/pmoaudio/src/nodes/resampling_node.rs
@@ -333,8 +333,13 @@ impl ResamplingNode {
     /// Crée un nouveau node de resampling
     ///
     /// * `target_sample_rate` - Sample rate de sortie en Hz (ex: 48000)
-    pub fn new(target_sample_rate: u32) -> Box<dyn AudioPipelineNode> {
-        Self::with_channel_size(target_sample_rate, 16)
+    pub fn new(target_sample_rate: u32) -> Self {
+        let logic = ResamplingLogic::new(target_sample_rate);
+        Self { inner: Node::new_with_input(logic, 16) }
+    }
+
+    pub fn make(target_sample_rate: u32) -> Box<dyn AudioPipelineNode> {
+        Self::new(target_sample_rate).boxed()
     }
 
     /// Crée un nouveau node de resampling avec taille de canal personnalisée
@@ -346,9 +351,7 @@ impl ResamplingNode {
         channel_size: usize,
     ) -> Box<dyn AudioPipelineNode> {
         let logic = ResamplingLogic::new(target_sample_rate);
-        Box::new(Self {
-            inner: Node::new_with_input(logic, channel_size),
-        })
+        Self { inner: Node::new_with_input(logic, channel_size) }.boxed()
     }
 }
 
diff --git a/pmoaudio/src/nodes/timer_buffer_node.rs b/pmoaudio/src/nodes/timer_buffer_node.rs
index f35b4c1b..dae81935 100644
--- a/pmoaudio/src/nodes/timer_buffer_node.rs
+++ b/pmoaudio/src/nodes/timer_buffer_node.rs
@@ -305,7 +305,12 @@ impl TimerBufferNode {
     /// let buffer = TimerBufferNode::new(3.0);
     /// ```
     pub fn new(capacity_sec: f64) -> Self {
-        Self::with_channel_size(capacity_sec, DEFAULT_CHANNEL_SIZE)
+        let logic = TimerBufferNodeLogic::new(capacity_sec);
+        Self { inner: Node::new_with_input(logic, DEFAULT_CHANNEL_SIZE) }
+    }
+
+    pub fn make(capacity_sec: f64) -> Box<dyn AudioPipelineNode> {
+        Self::new(capacity_sec).boxed()
     }
 
     /// Crée un TimerBufferNode avec une taille de buffer MPSC personnalisée
@@ -314,11 +319,9 @@ impl TimerBufferNode {
     ///
     /// * `capacity_sec` - Capacité du buffer en secondes
     /// * `channel_size` - Taille du buffer MPSC (nombre de segments en attente)
-    pub fn with_channel_size(capacity_sec: f64, channel_size: usize) -> Self {
+    pub fn with_channel_size(capacity_sec: f64, channel_size: usize) -> Box<dyn AudioPipelineNode> {
         let logic = TimerBufferNodeLogic::new(capacity_sec);
-        Self {
-            inner: Node::new_with_input(logic, channel_size),
-        }
+        Self { inner: Node::new_with_input(logic, channel_size) }.boxed()
     }
 }
 
diff --git a/pmoaudio/src/nodes/timer_node.rs b/pmoaudio/src/nodes/timer_node.rs
index bc005153..92ceda9c 100644
--- a/pmoaudio/src/nodes/timer_node.rs
+++ b/pmoaudio/src/nodes/timer_node.rs
@@ -308,7 +308,12 @@ impl TimerNode {
     /// let timer = TimerNode::new(3.0);
     /// ```
     pub fn new(max_lead_time_sec: f64) -> Self {
-        Self::with_channel_size(max_lead_time_sec, DEFAULT_CHANNEL_SIZE)
+        let logic = TimerNodeLogic::new(max_lead_time_sec);
+        Self { inner: Node::new_with_input(logic, DEFAULT_CHANNEL_SIZE) }
+    }
+
+    pub fn make(max_lead_time_sec: f64) -> Box<dyn AudioPipelineNode> {
+        Self::new(max_lead_time_sec).boxed()
     }
 
     /// Crée un TimerNode avec une taille de buffer MPSC personnalisée
@@ -317,11 +322,9 @@ impl TimerNode {
     ///
     /// * `max_lead_time_sec` - Avance maximale en secondes
     /// * `channel_size` - Taille du buffer MPSC (nombre de segments en attente)
-    pub fn with_channel_size(max_lead_time_sec: f64, channel_size: usize) -> Self {
+    pub fn with_channel_size(max_lead_time_sec: f64, channel_size: usize) -> Box<dyn AudioPipelineNode> {
         let logic = TimerNodeLogic::new(max_lead_time_sec);
-        Self {
-            inner: Node::new_with_input(logic, channel_size),
-        }
+        Self { inner: Node::new_with_input(logic, channel_size) }.boxed()
     }
 }
 
diff --git a/pmoaudio/src/pipeline.rs b/pmoaudio/src/pipeline.rs
index eac59ebf..164fc481 100755
--- a/pmoaudio/src/pipeline.rs
+++ b/pmoaudio/src/pipeline.rs
@@ -82,6 +82,14 @@ pub trait AudioPipelineNode: Send + 'static {
     /// Le parent extrait le tx via `child.get_tx()` avant de stocker le child.
     fn register(&mut self, child: Box<dyn AudioPipelineNode>);
 
+    /// Encapsule ce nœud dans un `Box<dyn AudioPipelineNode>` pour l'utiliser dans un pipeline.
+    fn boxed(self) -> Box<dyn AudioPipelineNode>
+    where
+        Self: Sized + 'static,
+    {
+        Box::new(self)
+    }
+
     /// Lance le nœud et tous ses enfants
     ///
     /// # Arguments
diff --git a/pmoparadise/examples/download_block.rs b/pmoparadise/examples/download_block.rs
index a5d5f3bb..d5273cea 100644
--- a/pmoparadise/examples/download_block.rs
+++ b/pmoparadise/examples/download_block.rs
@@ -117,7 +117,7 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let sink = FlacFileSink::new(&base_path);
 
     // Construire la chaîne: source → sink
-    source.register(Box::new(sink));
+    source.register(sink.boxed());
 
     // Créer un token d'arrêt
     let stop_token = CancellationToken::new();
diff --git a/pmoparadise/examples/play_and_cache.rs b/pmoparadise/examples/play_and_cache.rs
index b0ce7f77..a55c782e 100644
--- a/pmoparadise/examples/play_and_cache.rs
+++ b/pmoparadise/examples/play_and_cache.rs
@@ -217,15 +217,15 @@ async fn main() -> Result<(), Box<dyn std::error::Error>> {
     let audio_sink = if use_null_audio {
         AudioSink::with_null_output()
     } else {
-        AudioSink::new()
+        AudioSink::make()
     };
     tracing::debug!("AudioSink created");
 
     // Connecter timer → audio (AVANT de mettre timer dans une Box)
-    timer.register(Box::new(audio_sink));
+    timer.register(audio_sink);
 
     // Connecter playlist → timer
-    playlist_source.register(Box::new(timer));
+    playlist_source.register(timer.boxed());
     tracing::info!("Playback pipeline connected: PlaylistSource → TimerNode → AudioSink");
 
     // ═══════════════════════════════════════════════════════════════════════════
diff --git a/pmowebrenderer/src/pipeline.rs b/pmowebrenderer/src/pipeline.rs
index 321c33bd..36528f89 100644
--- a/pmowebrenderer/src/pipeline.rs
+++ b/pmowebrenderer/src/pipeline.rs
@@ -83,21 +83,21 @@ impl InstancePipeline {
 
         // Nœud de suivi de position : lit le timestamp des chunks sortant du buffer
         let (mut position_tracker, position_handle) = PositionTrackerNode::new();
-        position_tracker.register(Box::new(sink));
+        position_tracker.register(sink.boxed());
 
         // Nœud de pacing : régule le débit pour éviter les rafales et pertes de segments
         // 2s de buffer absorbe les irrégularités de la source réseau
         let mut timer_buffer = TimerBufferNode::new(2.0);
-        timer_buffer.register(Box::new(position_tracker));
+        timer_buffer.register(position_tracker.boxed());
 
         // Nœud de conversion de profondeur : tout type entier → I24
         // Placé avant le buffer pour réduire la mémoire utilisée
         let mut to_i24 = ToI24Node::new();
-        to_i24.register(Box::new(timer_buffer));
+        to_i24.register(timer_buffer.boxed());
 
         // Nœud de rééchantillonnage : n'importe quel sample rate → 96 kHz
         let mut resampler = ResamplingNode::new(DIRECT_OGG_FLAC_SAMPLE_RATE);
-        resampler.register(to_i24);
+        resampler.register(to_i24.boxed());
 
         // Le tx d'entrée du resampler est le point d'entrée du pipeline
         let segment_tx = resampler.get_tx().expect("ResamplingNode doit avoir un sender");
@@ -110,7 +110,7 @@ impl InstancePipeline {
         // Lancer la chaîne resampler → to_i24 → sink en background
         let sink_stop = stop_token.clone();
         tokio::spawn(async move {
-            if let Err(e) = resampler.run(sink_stop).await {
+            if let Err(e) = resampler.boxed().run(sink_stop).await {
                 warn!("Audio pipeline error: {:?}", e);
             }
             debug!("Sink task terminated");