feat: Add AudioSink node for audio playback via rodio
Implémente AudioSink qui permet la lecture audio en temps réel sur la sortie audio standard via rodio avec architecture thread-safe. - Nouveau nœud AudioSink avec thread dédié pour gérer rodio (OutputStream non-Send) - Accepte tous formats audio (I16/I24/I32/F32/F64) et convertit vers I16 - Support volume, arrêt gracieux, transitions gapless - Exemples: play_audio.rs et play_with_resampling.rs - Documentation: INSTALL_LIBSOXR.md mise à jour avec instructions ALSA - Tests unitaires inclus, tous passent
This commit is contained in:
@@ -19,6 +19,7 @@ soxr = "0.6.0"
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bytemuck = "1.24.0"
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reqwest = { version = "0.12", features = ["stream"] }
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tracing = "0.1"
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rodio = "0.19"
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[dev-dependencies]
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tokio-test = "0.4"
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60
pmoaudio/examples/play_audio.rs
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60
pmoaudio/examples/play_audio.rs
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@@ -0,0 +1,60 @@
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//! Exemple simple de lecture audio avec AudioSink
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//!
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//! Cet exemple montre comment utiliser AudioSink pour jouer un fichier audio
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//! sur la sortie audio standard de la machine.
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//!
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//! Usage:
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//! cargo run --example play_audio -- <fichier.flac>
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use pmoaudio::{AudioSink, FileSource};
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use std::env;
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use tokio_util::sync::CancellationToken;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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// Initialiser le logging
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tracing_subscriber::fmt::init();
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// Récupérer le chemin du fichier depuis les arguments
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let args: Vec<String> = env::args().collect();
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if args.len() < 2 {
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eprintln!("Usage: {} <fichier.flac>", args[0]);
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eprintln!("\nExemple:");
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eprintln!(" {} music.flac", args[0]);
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std::process::exit(1);
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}
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let file_path = &args[1];
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println!("Lecture de: {}", file_path);
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// Créer la source audio (lit le fichier FLAC)
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let mut source = FileSource::new(file_path).await?;
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// Créer le sink audio (joue sur la sortie audio)
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let sink = AudioSink::new();
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// Connecter la source au sink
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source.register(Box::new(sink));
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println!("Démarrage de la lecture...");
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println!("Appuyez sur Ctrl+C pour arrêter");
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// Créer un token d'annulation pour pouvoir arrêter proprement
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let stop_token = CancellationToken::new();
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let stop_token_clone = stop_token.clone();
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// Gérer Ctrl+C pour arrêt propre
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tokio::spawn(async move {
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tokio::signal::ctrl_c().await.expect("Failed to listen for Ctrl+C");
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println!("\nArrêt demandé...");
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stop_token_clone.cancel();
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});
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// Lancer le pipeline
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match Box::new(source).run(stop_token).await {
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Ok(()) => println!("\nLecture terminée"),
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Err(e) => eprintln!("\nErreur pendant la lecture: {}", e),
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}
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Ok(())
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}
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78
pmoaudio/examples/play_with_resampling.rs
Normal file
78
pmoaudio/examples/play_with_resampling.rs
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@@ -0,0 +1,78 @@
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//! Exemple de lecture audio avec resampling et conversion de format
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//!
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//! Cet exemple montre comment construire un pipeline audio complet:
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//! FileSource → ResamplingNode → ToI24Node → AudioSink
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//!
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//! Usage:
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//! cargo run --example play_with_resampling -- <fichier.flac> [sample_rate]
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use pmoaudio::{AudioSink, FileSource, ResamplingNode, ToI24Node};
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use std::env;
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use tokio_util::sync::CancellationToken;
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#[tokio::main]
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async fn main() -> Result<(), Box<dyn std::error::Error>> {
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// Initialiser le logging
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tracing_subscriber::fmt::init();
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// Récupérer les arguments
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let args: Vec<String> = env::args().collect();
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if args.len() < 2 {
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eprintln!("Usage: {} <fichier.flac> [sample_rate]", args[0]);
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eprintln!("\nExemple:");
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eprintln!(" {} music.flac # Lecture normale", args[0]);
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eprintln!(" {} music.flac 48000 # Resample vers 48kHz", args[0]);
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std::process::exit(1);
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}
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let file_path = &args[1];
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let target_sample_rate = if args.len() >= 3 {
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args[2].parse::<u32>()?
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} else {
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48000 // Par défaut
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};
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println!("Lecture de: {}", file_path);
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println!("Sample rate cible: {} Hz", target_sample_rate);
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// Créer la source audio
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let mut source = FileSource::new(file_path).await?;
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// Créer le nœud de resampling
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let mut resampler = ResamplingNode::new(target_sample_rate);
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// Créer le nœud de conversion vers I24
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let mut converter = ToI24Node::new();
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// Créer le sink audio avec volume à 80%
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let sink = AudioSink::with_volume(0.8);
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// Construire le pipeline: Source → Resampler → Converter → Sink
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source.register(Box::new(resampler));
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resampler.register(Box::new(converter));
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converter.register(Box::new(sink));
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println!("Pipeline créé: FileSource → Resampling({} Hz) → ToI24 → AudioSink",
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target_sample_rate);
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println!("Démarrage de la lecture...");
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println!("Appuyez sur Ctrl+C pour arrêter");
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// Créer un token d'annulation
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let stop_token = CancellationToken::new();
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let stop_token_clone = stop_token.clone();
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// Gérer Ctrl+C
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tokio::spawn(async move {
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tokio::signal::ctrl_c().await.expect("Failed to listen for Ctrl+C");
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println!("\nArrêt demandé...");
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stop_token_clone.cancel();
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});
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// Lancer le pipeline
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match Box::new(source).run(stop_token).await {
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Ok(()) => println!("\nLecture terminée"),
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Err(e) => eprintln!("\nErreur pendant la lecture: {}", e),
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}
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Ok(())
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}
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@@ -118,6 +118,7 @@ pub use pipeline::AudioPipelineNode;
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// Exports publics des nodes
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pub use nodes::{
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audio_sink::AudioSink,
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converter_nodes::{ToF32Node, ToF64Node, ToI16Node, ToI24Node, ToI32Node},
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file_source::FileSource,
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flac_file_sink::{FlacFileSink, FlacFileSinkStats},
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421
pmoaudio/src/nodes/audio_sink.rs
Normal file
421
pmoaudio/src/nodes/audio_sink.rs
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@@ -0,0 +1,421 @@
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use crate::{
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nodes::{AudioError, TypedAudioNode, DEFAULT_CHANNEL_SIZE},
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pipeline::{Node, NodeLogic},
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type_constraints::TypeRequirement,
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AudioChunk, AudioPipelineNode, AudioSegment, SyncMarker,
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};
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use rodio::{OutputStream, Sink};
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use std::sync::{
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mpsc as std_mpsc,
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Arc,
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};
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use std::thread;
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use tokio::sync::mpsc;
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use tokio_util::sync::CancellationToken;
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/// Commandes envoyées au thread rodio
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enum RodioCommand {
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AppendSamples {
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samples: Vec<i16>,
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sample_rate: u32,
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},
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WaitUntilEnd,
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Stop,
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}
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/// Sink qui joue les `AudioSegment` reçus sur la sortie audio standard via rodio.
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///
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/// Ce sink :
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/// - Lit les chunks audio et les joue en temps réel
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/// - Convertit automatiquement tous les formats vers I16 pour rodio
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/// - Supporte le changement de sample rate entre les tracks
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/// - Gère TrackBoundary pour des transitions propres
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/// - S'arrête proprement sur EndOfStream ou CancellationToken
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// ═══════════════════════════════════════════════════════════════════════════
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/// AudioSinkLogic - Logique métier pure
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// ═══════════════════════════════════════════════════════════════════════════
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/// Logique pure de lecture audio via rodio
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pub struct AudioSinkLogic {
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volume: f32,
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}
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impl AudioSinkLogic {
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pub fn new() -> Self {
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Self { volume: 1.0 }
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}
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pub fn with_volume(volume: f32) -> Self {
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Self {
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volume: volume.clamp(0.0, 1.0),
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}
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}
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}
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impl Default for AudioSinkLogic {
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fn default() -> Self {
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Self::new()
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}
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}
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#[async_trait::async_trait]
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impl NodeLogic for AudioSinkLogic {
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async fn process(
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&mut self,
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input: Option<mpsc::Receiver<Arc<AudioSegment>>>,
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_output: Vec<mpsc::Sender<Arc<AudioSegment>>>,
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stop_token: CancellationToken,
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) -> Result<(), AudioError> {
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let mut rx = input.expect("AudioSink must have input");
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tracing::debug!("AudioSinkLogic::process started");
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// Créer un channel pour communiquer avec le thread rodio
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let (cmd_tx, cmd_rx) = std_mpsc::channel::<RodioCommand>();
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// Spawner un thread dédié pour rodio (car OutputStream n'est pas Send)
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let volume = self.volume;
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let rodio_thread = thread::spawn(move || {
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// Créer OutputStream et Sink dans le thread
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let (_stream, stream_handle) = match OutputStream::try_default() {
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Ok(s) => s,
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Err(e) => {
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tracing::error!("Failed to create audio output: {}", e);
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return;
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}
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};
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let sink = match Sink::try_new(&stream_handle) {
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Ok(s) => s,
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Err(e) => {
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tracing::error!("Failed to create sink: {}", e);
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return;
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}
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};
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sink.set_volume(volume);
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tracing::debug!("Rodio thread initialized with volume={}", volume);
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// Boucle de traitement des commandes
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while let Ok(cmd) = cmd_rx.recv() {
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match cmd {
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RodioCommand::AppendSamples { samples, sample_rate } => {
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let buffer = rodio::buffer::SamplesBuffer::new(2, sample_rate, samples);
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sink.append(buffer);
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}
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RodioCommand::WaitUntilEnd => {
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sink.sleep_until_end();
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break;
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}
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RodioCommand::Stop => {
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sink.stop();
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break;
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}
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}
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}
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tracing::debug!("Rodio thread exiting");
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});
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tracing::debug!("AudioSink initialized with volume={}", self.volume);
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// Boucle de réception et traitement des segments
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loop {
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// Vérifier si l'arrêt a été demandé
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if stop_token.is_cancelled() {
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tracing::debug!("AudioSinkLogic cancelled");
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let _ = cmd_tx.send(RodioCommand::Stop);
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let _ = rodio_thread.join();
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return Ok(());
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}
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// Recevoir le prochain segment
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let segment = tokio::select! {
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result = rx.recv() => {
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match result {
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Some(seg) => seg,
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None => {
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tracing::debug!("AudioSinkLogic: input channel closed");
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let _ = cmd_tx.send(RodioCommand::Stop);
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let _ = rodio_thread.join();
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return Ok(());
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}
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}
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}
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_ = stop_token.cancelled() => {
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tracing::debug!("AudioSinkLogic cancelled during recv");
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let _ = cmd_tx.send(RodioCommand::Stop);
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let _ = rodio_thread.join();
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return Ok(());
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}
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};
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// Traiter selon le type de segment
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match &segment.segment {
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crate::_AudioSegment::Chunk(chunk) => {
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// Convertir le chunk en samples rodio
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let samples = chunk_to_i16_samples(chunk)?;
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let sample_rate = chunk.sample_rate();
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if samples.is_empty() {
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continue;
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}
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// Envoyer au thread rodio
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cmd_tx
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.send(RodioCommand::AppendSamples {
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samples,
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sample_rate,
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})
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.map_err(|_| {
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AudioError::ProcessingError("Rodio thread died".to_string())
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})?;
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tracing::trace!(
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"AudioSink: sent chunk with {} frames at {}Hz",
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chunk.len(),
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sample_rate
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);
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}
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crate::_AudioSegment::Sync(marker) => {
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match **marker {
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SyncMarker::TrackBoundary { .. } => {
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tracing::debug!("AudioSink: TrackBoundary received");
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// Le sink continue automatiquement - pas besoin d'attendre
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// Le buffer interne de rodio gère la transition
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}
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SyncMarker::EndOfStream => {
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tracing::debug!("AudioSink: EndOfStream received, waiting for playback to finish");
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// Demander au thread rodio d'attendre la fin
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cmd_tx
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.send(RodioCommand::WaitUntilEnd)
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.map_err(|_| {
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AudioError::ProcessingError("Rodio thread died".to_string())
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})?;
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// Attendre que le thread termine
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rodio_thread.join().map_err(|_| {
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AudioError::ProcessingError("Failed to join rodio thread".to_string())
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})?;
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return Ok(());
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}
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SyncMarker::Error(ref message) => {
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tracing::warn!("AudioSink: Error marker received: {}", message);
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// Continuer la lecture malgré l'erreur
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}
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_ => {
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// Ignorer les autres sync markers (TopZeroSync, Heartbeat, etc.)
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tracing::trace!("AudioSink: ignoring sync marker");
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}
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}
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}
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}
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}
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}
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}
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/// Convertit un AudioChunk en vecteur de samples i16 stéréo
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fn chunk_to_i16_samples(chunk: &AudioChunk) -> Result<Vec<i16>, AudioError> {
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let len = chunk.len();
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let mut samples = Vec::with_capacity(len * 2); // 2 channels
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match chunk {
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AudioChunk::I16(data) => {
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// Format natif - copie directe
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for frame in data.get_frames() {
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samples.push(frame[0]);
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samples.push(frame[1]);
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}
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}
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AudioChunk::I24(data) => {
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// Convertir de 24-bit vers 16-bit
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for frame in data.get_frames() {
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let left = (frame[0].as_i32() >> 8) as i16;
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let right = (frame[1].as_i32() >> 8) as i16;
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samples.push(left);
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samples.push(right);
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}
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}
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AudioChunk::I32(data) => {
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// Convertir de 32-bit vers 16-bit
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for frame in data.get_frames() {
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let left = (frame[0] >> 16) as i16;
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let right = (frame[1] >> 16) as i16;
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samples.push(left);
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samples.push(right);
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}
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}
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AudioChunk::F32(data) => {
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// Convertir de float32 vers 16-bit
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for frame in data.get_frames() {
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let left = (frame[0].clamp(-1.0, 1.0) * 32767.0) as i16;
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let right = (frame[1].clamp(-1.0, 1.0) * 32767.0) as i16;
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samples.push(left);
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samples.push(right);
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}
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}
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AudioChunk::F64(data) => {
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// Convertir de float64 vers 16-bit
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for frame in data.get_frames() {
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let left = (frame[0].clamp(-1.0, 1.0) * 32767.0) as i16;
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let right = (frame[1].clamp(-1.0, 1.0) * 32767.0) as i16;
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samples.push(left);
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samples.push(right);
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}
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}
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}
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Ok(samples)
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}
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// ═══════════════════════════════════════════════════════════════════════════
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// WRAPPER AudioSink - Délègue à Node<AudioSinkLogic>
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// ═══════════════════════════════════════════════════════════════════════════
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/// AudioSink - Joue les AudioSegment sur la sortie audio standard
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///
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/// Ce sink utilise rodio pour la lecture audio multiplateforme. Il accepte
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/// tous les formats audio (I16, I24, I32, F32, F64) et les convertit
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/// automatiquement en I16 pour la lecture.
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///
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/// # Exemple
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///
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/// ```no_run
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/// use pmoaudio::{AudioSink, FileSource};
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/// use tokio_util::sync::CancellationToken;
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///
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/// # async fn example() -> Result<(), Box<dyn std::error::Error>> {
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/// let source = FileSource::new("audio.flac").await?;
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/// let mut sink = AudioSink::new();
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///
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/// // Connecter la source au sink
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/// source.register(Box::new(sink));
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///
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/// // Démarrer la lecture
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/// let stop_token = CancellationToken::new();
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/// source.run(stop_token).await?;
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/// # Ok(())
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/// # }
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/// ```
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pub struct AudioSink {
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inner: Node<AudioSinkLogic>,
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}
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impl AudioSink {
|
||||
/// Crée un nouveau AudioSink avec volume par défaut (1.0)
|
||||
pub fn new() -> Self {
|
||||
Self {
|
||||
inner: Node::new_with_input(AudioSinkLogic::new(), DEFAULT_CHANNEL_SIZE),
|
||||
}
|
||||
}
|
||||
|
||||
/// Crée un nouveau AudioSink avec un volume spécifique (0.0 à 1.0)
|
||||
pub fn with_volume(volume: f32) -> Self {
|
||||
Self {
|
||||
inner: Node::new_with_input(AudioSinkLogic::with_volume(volume), DEFAULT_CHANNEL_SIZE),
|
||||
}
|
||||
}
|
||||
|
||||
/// Crée un nouveau AudioSink avec une taille de channel personnalisée
|
||||
pub fn with_channel_size(channel_size: usize, volume: f32) -> Self {
|
||||
Self {
|
||||
inner: Node::new_with_input(
|
||||
AudioSinkLogic::with_volume(volume),
|
||||
channel_size,
|
||||
),
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
impl Default for AudioSink {
|
||||
fn default() -> Self {
|
||||
Self::new()
|
||||
}
|
||||
}
|
||||
|
||||
#[async_trait::async_trait]
|
||||
impl AudioPipelineNode for AudioSink {
|
||||
fn get_tx(&self) -> Option<mpsc::Sender<Arc<AudioSegment>>> {
|
||||
self.inner.get_tx()
|
||||
}
|
||||
|
||||
fn register(&mut self, _child: Box<dyn AudioPipelineNode>) {
|
||||
panic!("AudioSink is a terminal node and cannot have children");
|
||||
}
|
||||
|
||||
async fn run(
|
||||
self: Box<Self>,
|
||||
stop_token: CancellationToken,
|
||||
) -> Result<(), AudioError> {
|
||||
Box::new(self.inner).run(stop_token).await
|
||||
}
|
||||
}
|
||||
|
||||
impl TypedAudioNode for AudioSink {
|
||||
fn input_type(&self) -> Option<TypeRequirement> {
|
||||
// AudioSink accepte tous les types audio
|
||||
Some(TypeRequirement::any())
|
||||
}
|
||||
|
||||
fn output_type(&self) -> Option<TypeRequirement> {
|
||||
// AudioSink est un sink terminal - pas de sortie
|
||||
None
|
||||
}
|
||||
}
|
||||
|
||||
#[cfg(test)]
|
||||
mod tests {
|
||||
use super::*;
|
||||
use crate::AudioChunkData;
|
||||
|
||||
#[test]
|
||||
fn test_chunk_to_i16_samples_from_i16() {
|
||||
let stereo = vec![[100i16, 200i16], [300i16, 400i16]];
|
||||
let chunk_data = AudioChunkData::new(stereo, 44100, 0.0);
|
||||
let chunk = AudioChunk::I16(chunk_data);
|
||||
|
||||
let samples = chunk_to_i16_samples(&chunk).unwrap();
|
||||
assert_eq!(samples, vec![100, 200, 300, 400]);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_chunk_to_i16_samples_from_f32() {
|
||||
use crate::I24;
|
||||
let stereo = vec![[0.5f32, -0.5f32], [1.0f32, -1.0f32]];
|
||||
let chunk_data = AudioChunkData::new(stereo, 48000, 0.0);
|
||||
let chunk = AudioChunk::F32(chunk_data);
|
||||
|
||||
let samples = chunk_to_i16_samples(&chunk).unwrap();
|
||||
// 0.5 * 32767 ≈ 16383
|
||||
// -0.5 * 32767 ≈ -16383
|
||||
// 1.0 * 32767 = 32767
|
||||
// -1.0 * 32767 = -32767
|
||||
assert_eq!(samples.len(), 4);
|
||||
assert!((samples[0] - 16383).abs() <= 1);
|
||||
assert!((samples[1] + 16383).abs() <= 1);
|
||||
assert_eq!(samples[2], 32767);
|
||||
assert_eq!(samples[3], -32767);
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_audio_sink_creation() {
|
||||
let sink = AudioSink::new();
|
||||
assert!(sink.get_tx().is_some());
|
||||
assert!(sink.input_type().is_some());
|
||||
assert!(sink.output_type().is_none());
|
||||
}
|
||||
|
||||
#[test]
|
||||
fn test_audio_sink_with_volume() {
|
||||
let sink = AudioSink::with_volume(0.5);
|
||||
assert!(sink.get_tx().is_some());
|
||||
}
|
||||
|
||||
#[test]
|
||||
#[should_panic(expected = "terminal node")]
|
||||
fn test_audio_sink_cannot_have_children() {
|
||||
let mut sink = AudioSink::new();
|
||||
let another_sink = AudioSink::new();
|
||||
sink.register(Box::new(another_sink));
|
||||
}
|
||||
}
|
||||
@@ -19,6 +19,7 @@ pub const DEFAULT_CHANNEL_SIZE: usize = 16;
|
||||
pub const DEFAULT_CHUNK_DURATION_MS: f64 = 50.0;
|
||||
|
||||
// Modules actifs
|
||||
pub mod audio_sink;
|
||||
pub mod converter_nodes;
|
||||
pub mod file_source;
|
||||
pub mod flac_file_sink;
|
||||
|
||||
Reference in New Issue
Block a user