Lenteur détection des serveurs.
This commit is contained in:
120
pmocontrol/examples/chromecast_info.rs
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120
pmocontrol/examples/chromecast_info.rs
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//! Simple Chromecast info retrieval test
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//!
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//! This is the most minimal test - just connects and gets device status.
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//!
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//! Usage:
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//! cargo run --example chromecast_info -- <chromecast_ip>
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use std::env;
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use std::sync::Once;
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use rust_cast::CastDevice;
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const DEFAULT_DESTINATION_ID: &str = "receiver-0";
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const DEFAULT_PORT: u16 = 8009;
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/// Ensures the Rustls CryptoProvider is initialized exactly once.
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fn ensure_crypto_provider_initialized() {
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static INIT: Once = Once::new();
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INIT.call_once(|| {
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let _ = rustls::crypto::CryptoProvider::install_default(
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rustls::crypto::aws_lc_rs::default_provider()
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);
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});
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}
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fn main() {
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// Parse command line 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: {} <chromecast_ip>", args[0]);
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eprintln!("\nExample:");
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eprintln!(" {} 192.168.1.100", args[0]);
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std::process::exit(1);
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}
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let chromecast_ip = &args[1];
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println!("═══════════════════════════════════════════════════════");
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println!(" Chromecast Info Test");
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println!("═══════════════════════════════════════════════════════");
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println!();
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// Initialize crypto provider
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ensure_crypto_provider_initialized();
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// Connect to the device
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println!("→ Connecting to {}:{}...", chromecast_ip, DEFAULT_PORT);
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let cast_device = match CastDevice::connect_without_host_verification(chromecast_ip, DEFAULT_PORT) {
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Ok(device) => {
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println!(" ✓ Connected");
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device
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}
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Err(e) => {
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eprintln!(" ✗ Failed: {}", e);
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std::process::exit(1);
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}
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};
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// Connect to receiver channel
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println!();
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println!("→ Connecting to receiver channel...");
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if let Err(e) = cast_device.connection.connect(DEFAULT_DESTINATION_ID.to_string()) {
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eprintln!(" ✗ Failed: {}", e);
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std::process::exit(1);
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}
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println!(" ✓ Channel connected");
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// Send initial ping
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println!();
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println!("→ Sending initial ping...");
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if let Err(e) = cast_device.heartbeat.ping() {
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eprintln!(" ✗ Failed: {}", e);
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std::process::exit(1);
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}
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println!(" ✓ Ping sent");
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// Get receiver status
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println!();
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println!("→ Getting receiver status...");
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match cast_device.receiver.get_status() {
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Ok(status) => {
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println!(" ✓ Status retrieved\n");
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// Volume
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if let Some(level) = status.volume.level {
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println!(" Volume: {:.0}%", level * 100.0);
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}
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if let Some(muted) = status.volume.muted {
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println!(" Muted: {}", muted);
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}
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// Applications
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println!("\n Running applications: {}", status.applications.len());
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for (i, app) in status.applications.iter().enumerate() {
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println!("\n App #{}:", i + 1);
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println!(" Display Name: {}", app.display_name);
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println!(" App ID: {}", app.app_id);
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println!(" Session ID: {}", app.session_id);
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println!(" Transport ID: {}", app.transport_id);
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println!(" Status: {}", app.status_text);
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println!(" Namespaces: {}", app.namespaces.len());
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}
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if status.applications.is_empty() {
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println!(" (no apps currently running)");
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}
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}
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Err(e) => {
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eprintln!(" ✗ Failed: {}", e);
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std::process::exit(1);
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}
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}
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println!();
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println!("═══════════════════════════════════════════════════════");
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println!(" Test completed successfully!");
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println!("═══════════════════════════════════════════════════════");
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}
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284
pmocontrol/examples/chromecast_playback_test.rs
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284
pmocontrol/examples/chromecast_playback_test.rs
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//! Simple Chromecast playback test
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//!
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//! This example tests basic Chromecast functionality by:
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//! 1. Connecting to a Chromecast device
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//! 2. Launching the DefaultMediaReceiver app
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//! 3. Loading and playing a test media URL
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//! 4. Maintaining the heartbeat loop
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//!
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//! Usage:
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//! cargo run --example chromecast_playback_test -- <chromecast_ip> [media_url]
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//!
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//! Example:
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//! cargo run --example chromecast_playback_test -- 192.168.1.100
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use std::env;
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use std::sync::Once;
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use rust_cast::{
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CastDevice, ChannelMessage,
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channels::{
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heartbeat::HeartbeatResponse,
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media::{Media, StreamType},
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receiver::CastDeviceApp,
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},
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};
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const DEFAULT_DESTINATION_ID: &str = "receiver-0";
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const DEFAULT_PORT: u16 = 8009;
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// Test media URLs (public domain audio files)
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const TEST_MEDIA_URL: &str = "https://www.soundhelix.com/examples/mp3/SoundHelix-Song-1.mp3";
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/// Ensures the Rustls CryptoProvider is initialized exactly once.
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fn ensure_crypto_provider_initialized() {
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static INIT: Once = Once::new();
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INIT.call_once(|| {
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let _ = rustls::crypto::CryptoProvider::install_default(
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rustls::crypto::aws_lc_rs::default_provider()
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);
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println!("✓ Rustls CryptoProvider initialized");
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});
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}
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/// Detects content type from URL path
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fn detect_content_type(url: &str) -> String {
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// Detect from URL path - check if path contains /flac/, /mp3/, etc.
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if url.contains("/flac/") || url.contains(".flac") {
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println!(" ✓ Detected FLAC from URL path");
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return "audio/flac".to_string();
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}
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if url.contains("/mp3/") || url.contains(".mp3") {
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println!(" ✓ Detected MP3 from URL path");
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return "audio/mpeg".to_string();
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}
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if url.contains(".m4a") || url.contains(".mp4") || url.contains(".aac") {
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println!(" ✓ Detected AAC/M4A from URL path");
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return "audio/mp4".to_string();
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}
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if url.contains("/ogg/") || url.contains(".ogg") {
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println!(" ✓ Detected OGG from URL path");
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return "audio/ogg".to_string();
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}
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if url.contains(".opus") {
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println!(" ✓ Detected Opus from URL path");
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return "audio/opus".to_string();
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}
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if url.contains(".wav") {
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println!(" ✓ Detected WAV from URL path");
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return "audio/wav".to_string();
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}
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// Fallback
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println!(" ⚠ Could not detect type, using audio/mpeg as fallback");
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"audio/mpeg".to_string()
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}
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fn main() {
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// Setup logging
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tracing_subscriber::fmt()
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.with_max_level(tracing::Level::DEBUG)
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.init();
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// Parse command line 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: {} <chromecast_ip> [media_url]", args[0]);
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eprintln!("\nExample:");
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eprintln!(" {} 192.168.1.100", args[0]);
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eprintln!("\nIf no media URL is provided, will use: {}", TEST_MEDIA_URL);
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std::process::exit(1);
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}
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let chromecast_ip = &args[1];
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let media_url = if args.len() > 2 {
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&args[2]
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} else {
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TEST_MEDIA_URL
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};
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println!("╔════════════════════════════════════════════════════════════╗");
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println!("║ Chromecast Playback Test (rust_cast) ║");
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println!("╚════════════════════════════════════════════════════════════╝");
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println!();
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println!("Target: {}:{}", chromecast_ip, DEFAULT_PORT);
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println!("Media URL: {}", media_url);
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println!();
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println!("Detecting media content type...");
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let media_type = detect_content_type(media_url);
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println!();
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// Initialize crypto provider
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ensure_crypto_provider_initialized();
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// Step 1: Connect to the device
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println!("──────────────────────────────────────────────────────────");
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println!("STEP 1: Connecting to Chromecast...");
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let cast_device = match CastDevice::connect_without_host_verification(chromecast_ip, DEFAULT_PORT) {
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Ok(device) => {
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println!("✓ Connected to Chromecast");
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device
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}
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Err(e) => {
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eprintln!("✗ Failed to connect: {}", e);
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std::process::exit(1);
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}
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};
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// Step 2: Connect to the default receiver channel
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println!();
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println!("STEP 2: Connecting to receiver channel...");
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if let Err(e) = cast_device.connection.connect(DEFAULT_DESTINATION_ID.to_string()) {
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eprintln!("✗ Failed to connect channel: {}", e);
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std::process::exit(1);
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}
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println!("✓ Channel connected");
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// Step 3: Send initial ping (CRITICAL per rust_caster.rs)
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println!();
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println!("STEP 3: Sending initial heartbeat ping...");
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if let Err(e) = cast_device.heartbeat.ping() {
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eprintln!("✗ Failed to send initial ping: {}", e);
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std::process::exit(1);
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}
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println!("✓ Initial ping sent");
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// Step 4: Get receiver status
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println!();
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println!("STEP 4: Getting receiver status...");
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let status = match cast_device.receiver.get_status() {
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Ok(status) => {
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println!("✓ Receiver status obtained");
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println!(" - Volume: {:.0}%", status.volume.level.unwrap_or(0.5) * 100.0);
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println!(" - Muted: {}", status.volume.muted.unwrap_or(false));
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println!(" - Running apps: {}", status.applications.len());
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status
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}
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Err(e) => {
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eprintln!("✗ Failed to get status: {}", e);
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std::process::exit(1);
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}
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};
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// Step 5: Launch DefaultMediaReceiver
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println!();
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println!("STEP 5: Launching DefaultMediaReceiver app...");
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let app = match cast_device.receiver.launch_app(&CastDeviceApp::DefaultMediaReceiver) {
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Ok(app) => {
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println!("✓ App launched successfully");
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println!(" - App ID: {}", app.app_id);
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println!(" - Display Name: {}", app.display_name);
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println!(" - Session ID: {}", app.session_id);
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println!(" - Transport ID: {}", app.transport_id);
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app
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}
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Err(e) => {
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eprintln!("✗ Failed to launch app: {}", e);
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std::process::exit(1);
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}
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};
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// Step 6: Connect to the app's transport
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println!();
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println!("STEP 6: Connecting to app transport...");
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if let Err(e) = cast_device.connection.connect(app.transport_id.as_str()) {
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eprintln!("✗ Failed to connect to app transport: {}", e);
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std::process::exit(1);
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}
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println!("✓ Connected to app transport: {}", app.transport_id);
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// Step 7: Load the media
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println!();
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println!("STEP 7: Loading media...");
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println!(" Content-Type: {}", media_type);
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let media = Media {
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content_id: media_url.to_string(),
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content_type: media_type,
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stream_type: StreamType::Buffered,
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duration: None,
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metadata: None,
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};
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match cast_device.media.load(
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app.transport_id.as_str(),
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app.session_id.as_str(),
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&media,
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) {
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Ok(status) => {
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println!("✓ Media loaded successfully!");
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println!(" - Media status entries: {}", status.entries.len());
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if let Some(entry) = status.entries.first() {
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println!(" - Player state: {:?}", entry.player_state);
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println!(" - Media session ID: {}", entry.media_session_id);
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if let Some(ref media) = entry.media {
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println!(" - Content ID: {}", media.content_id);
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println!(" - Stream type: {:?}", media.stream_type);
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}
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}
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}
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Err(e) => {
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eprintln!("✗ Failed to load media: {}", e);
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std::process::exit(1);
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}
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}
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// Step 8: Enter heartbeat loop
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println!();
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println!("──────────────────────────────────────────────────────────");
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println!("STEP 8: Entering heartbeat loop (Ctrl+C to exit)...");
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println!("──────────────────────────────────────────────────────────");
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println!();
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let mut heartbeat_count = 0;
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let mut media_message_count = 0;
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loop {
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match cast_device.receive() {
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Ok(ChannelMessage::Heartbeat(response)) => {
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if let HeartbeatResponse::Ping = response {
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heartbeat_count += 1;
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println!("[Heartbeat #{:3}] Received Ping, sending Pong...", heartbeat_count);
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if let Err(e) = cast_device.heartbeat.pong() {
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eprintln!("✗ Failed to send pong: {}", e);
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break;
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}
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} else {
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println!("[Heartbeat] {:?}", response);
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}
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}
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Ok(ChannelMessage::Media(response)) => {
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media_message_count += 1;
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println!("[Media #{:3}] {:?}", media_message_count, response);
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}
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Ok(ChannelMessage::Receiver(response)) => {
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println!("[Receiver] {:?}", response);
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}
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Ok(ChannelMessage::Connection(response)) => {
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println!("[Connection] {:?}", response);
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}
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Ok(ChannelMessage::Raw(response)) => {
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println!("[Raw] Unsupported message type: {:?}", response);
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}
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Err(e) => {
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eprintln!("✗ Error receiving message: {}", e);
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break;
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}
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}
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}
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println!();
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println!("──────────────────────────────────────────────────────────");
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println!("Test completed.");
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println!("Total heartbeats: {}", heartbeat_count);
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println!("Total media messages: {}", media_message_count);
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}
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409
pmocontrol/rust-cast-async-analysis.md
Normal file
409
pmocontrol/rust-cast-async-analysis.md
Normal file
@@ -0,0 +1,409 @@
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# Analyse : Rendre rust-cast asynchrone vs autres options
|
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**Date :** 2025-12-27
|
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**Question :** Est-il plus simple d'intégrer rust-cast et le modifier pour le rendre asynchrone ?
|
||||
|
||||
---
|
||||
|
||||
## 1. Analyse de la codebase rust-cast
|
||||
|
||||
### Taille et complexité
|
||||
|
||||
```bash
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||||
Total : ~5800 lignes de code Rust
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||||
Structure modulaire :
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├── src/lib.rs (~570 lignes)
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├── src/message_manager.rs (~300 lignes)
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├── src/channels/
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│ ├── media.rs (~800 lignes)
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│ ├── receiver.rs (~400 lignes)
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│ ├── heartbeat.rs (~100 lignes)
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│ └── connection.rs (~100 lignes)
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├── src/cast/
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│ ├── cast_channel.rs (généré par protobuf)
|
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│ └── proxies.rs (~500 lignes)
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└── src/errors.rs, utils.rs (~200 lignes)
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```
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|
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**Conclusion :** Codebase de taille **modeste et bien structurée**.
|
||||
|
||||
---
|
||||
|
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## 2. Points bloquants identifiés
|
||||
|
||||
### 2.1 I/O synchrone bloquant
|
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|
||||
Tous les I/O passent par `MessageManager<S>` où `S: Read + Write` :
|
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|
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```rust
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// message_manager.rs:246-253
|
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fn read(&self) -> Result<CastMessage, Error> {
|
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let mut buffer: [u8; 4] = [0; 4];
|
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let reader = &mut *self.stream.borrow_mut();
|
||||
|
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reader.read_exact(&mut buffer)?; // ❌ BLOQUANT
|
||||
let length = utils::read_u32_from_buffer(&buffer)?;
|
||||
|
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let mut buffer: Vec<u8> = Vec::with_capacity(length as usize);
|
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let mut limited_reader = reader.take(u64::from(length));
|
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limited_reader.read_to_end(&mut buffer)?; // ❌ BLOQUANT
|
||||
...
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||||
}
|
||||
```
|
||||
|
||||
```rust
|
||||
// message_manager.rs:138-141
|
||||
pub fn send(&self, message: CastMessage) -> Result<(), Error> {
|
||||
...
|
||||
let writer = &mut *self.stream.borrow_mut();
|
||||
writer.write_all(&message_length_buffer)?; // ❌ BLOQUANT
|
||||
writer.write_all(&message_content_buffer)?; // ❌ BLOQUANT
|
||||
...
|
||||
}
|
||||
```
|
||||
|
||||
### 2.2 Connexion TLS
|
||||
|
||||
```rust
|
||||
// lib.rs:125
|
||||
let stream = StreamOwned::new(
|
||||
conn,
|
||||
TcpStream::connect((host.as_ref(), port))? // ❌ BLOQUANT
|
||||
);
|
||||
```
|
||||
|
||||
**Total : 5 points bloquants critiques** (connect, read_exact, read_to_end, 2x write_all)
|
||||
|
||||
---
|
||||
|
||||
## 3. Effort pour rendre rust-cast asynchrone
|
||||
|
||||
### 3.1 Modifications requises
|
||||
|
||||
#### A. Remplacer la stack réseau
|
||||
|
||||
**Avant (sync) :**
|
||||
```rust
|
||||
use std::net::TcpStream;
|
||||
use rustls::{ClientConnection, StreamOwned};
|
||||
|
||||
type TlsStream = StreamOwned<ClientConnection, TcpStream>;
|
||||
```
|
||||
|
||||
**Après (async) :**
|
||||
```rust
|
||||
use async_io::Async;
|
||||
use std::net::TcpStream;
|
||||
use async_rustls::{TlsConnector, client::TlsStream};
|
||||
|
||||
// OU avec tokio :
|
||||
use tokio::net::TcpStream;
|
||||
use tokio_rustls::{TlsConnector, client::TlsStream};
|
||||
```
|
||||
|
||||
⚠️ **PROBLÈME :** `rustls::StreamOwned` n'existe pas en version async native. Il faut utiliser :
|
||||
- `async-rustls` (pour async-std/smol)
|
||||
- `tokio-rustls` (pour tokio)
|
||||
|
||||
Ces crates ont une **API différente** de `rustls::StreamOwned`.
|
||||
|
||||
#### B. Modifier `MessageManager`
|
||||
|
||||
```diff
|
||||
- pub struct MessageManager<S> where S: Write + Read {
|
||||
+ pub struct MessageManager<S> where S: AsyncWrite + AsyncRead + Unpin {
|
||||
|
||||
- pub fn send(&self, message: CastMessage) -> Result<(), Error> {
|
||||
+ pub async fn send(&self, message: CastMessage) -> Result<(), Error> {
|
||||
...
|
||||
- writer.write_all(&message_length_buffer)?;
|
||||
+ writer.write_all(&message_length_buffer).await?;
|
||||
}
|
||||
|
||||
- pub fn receive(&self) -> Result<CastMessage, Error> {
|
||||
+ pub async fn receive(&self) -> Result<CastMessage, Error> {
|
||||
...
|
||||
}
|
||||
|
||||
- fn read(&self) -> Result<CastMessage, Error> {
|
||||
+ async fn read(&self) -> Result<CastMessage, Error> {
|
||||
- reader.read_exact(&mut buffer)?;
|
||||
+ reader.read_exact(&mut buffer).await?;
|
||||
- limited_reader.read_to_end(&mut buffer)?;
|
||||
+ limited_reader.read_to_end(&mut buffer).await?;
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
#### C. Propager `async` dans tous les channels
|
||||
|
||||
**Avant :**
|
||||
```rust
|
||||
// channels/media.rs
|
||||
impl<'a, S> MediaChannel<'a, S> where S: Write + Read {
|
||||
pub fn play(&self, ...) -> Result<(), Error> {
|
||||
self.message_manager.send(...)?;
|
||||
self.message_manager.receive_find_map(...)
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
**Après :**
|
||||
```rust
|
||||
impl<'a, S> MediaChannel<'a, S> where S: AsyncWrite + AsyncRead + Unpin {
|
||||
pub async fn play(&self, ...) -> Result<(), Error> {
|
||||
self.message_manager.send(...).await?;
|
||||
self.message_manager.receive_find_map(...).await
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
**Impact :** TOUS les channels (media, receiver, heartbeat, connection) deviennent `async`.
|
||||
|
||||
#### D. Modifier `CastDevice`
|
||||
|
||||
```diff
|
||||
impl<'a> CastDevice<'a> {
|
||||
- pub fn connect<S>(host: S, port: u16) -> Result<CastDevice<'a>, Error>
|
||||
+ pub async fn connect<S>(host: S, port: u16) -> Result<CastDevice<'a>, Error>
|
||||
{
|
||||
...
|
||||
- let stream = TcpStream::connect((host.as_ref(), port))?;
|
||||
+ let stream = TcpStream::connect((host.as_ref(), port)).await?;
|
||||
...
|
||||
}
|
||||
|
||||
- pub fn receive(&self) -> Result<ChannelMessage, Error> {
|
||||
+ pub async fn receive(&self) -> Result<ChannelMessage, Error> {
|
||||
- let cast_message = self.message_manager.receive()?;
|
||||
+ let cast_message = self.message_manager.receive().await?;
|
||||
...
|
||||
}
|
||||
}
|
||||
```
|
||||
|
||||
### 3.2 Estimation de l'effort
|
||||
|
||||
| Tâche | Fichiers touchés | Complexité | Temps estimé |
|
||||
|-------|------------------|------------|--------------|
|
||||
| Choisir stack async (smol vs tokio) | - | Faible | 1h |
|
||||
| Migrer vers async-rustls/tokio-rustls | lib.rs | **MOYENNE** | 4-6h |
|
||||
| Rendre MessageManager async | message_manager.rs | **MOYENNE** | 4-6h |
|
||||
| Rendre tous les channels async | 4 fichiers | **MOYENNE-ÉLEVÉE** | 8-12h |
|
||||
| Mettre à jour CastDevice | lib.rs | Moyenne | 2-4h |
|
||||
| Tests et debug | Tous | **ÉLEVÉE** | 8-16h |
|
||||
| **TOTAL** | **~10 fichiers** | **ÉLEVÉE** | **27-45 heures** |
|
||||
|
||||
⚠️ **RISQUES :**
|
||||
- API `async-rustls` différente de `rustls::StreamOwned` → peut nécessiter refactoring profond
|
||||
- Gestion des locks async (`Mutex` → `async_lock::Mutex` ou `tokio::sync::Mutex`)
|
||||
- Bugs subtils liés à la concurrence async
|
||||
- Tests nécessaires pour valider la stabilité
|
||||
|
||||
---
|
||||
|
||||
## 4. Comparaison des 4 options
|
||||
|
||||
### Option 1 : ✅ **Rester avec rust-cast sync et corriger le TLS**
|
||||
|
||||
**Effort :** FAIBLE (2-8 heures)
|
||||
|
||||
**Actions :**
|
||||
- Investiguer les erreurs TLS prématurées
|
||||
- Ajouter retry logic sur les reconnexions
|
||||
- Améliorer la gestion d'erreur dans [chromecast_renderer.rs](pmocontrol/src/chromecast_renderer.rs:86-104)
|
||||
- Peut-être ajuster les timeouts de lecture
|
||||
|
||||
**Avantages :**
|
||||
- ✅ Garde l'API sync compatible avec PMOMusic
|
||||
- ✅ Risque minimal
|
||||
- ✅ Solution rapide
|
||||
|
||||
**Inconvénients :**
|
||||
- ⚠️ Ne résout peut-être pas tous les problèmes TLS
|
||||
|
||||
---
|
||||
|
||||
### Option 2 : 🔧 **Forker rust-cast et moderniser le TLS (reste sync)**
|
||||
|
||||
**Effort :** MOYEN (8-16 heures)
|
||||
|
||||
**Actions :**
|
||||
- Forker rust-cast sur GitHub/GitLab
|
||||
- Améliorer la gestion TLS (retry, reconnexion automatique)
|
||||
- Ajouter logs détaillés
|
||||
- Corriger les bugs TLS identifiés
|
||||
- Maintenir un fork privé
|
||||
|
||||
**Avantages :**
|
||||
- ✅ Garde l'API sync
|
||||
- ✅ Contrôle total sur les correctifs
|
||||
- ✅ Peut merger les améliorations de upstream
|
||||
|
||||
**Inconvénients :**
|
||||
- ⚠️ Maintenance du fork à long terme
|
||||
- ⚠️ Doit suivre les mises à jour de rustls
|
||||
|
||||
---
|
||||
|
||||
### Option 3 : 🔄 **Rendre rust-cast asynchrone**
|
||||
|
||||
**Effort :** ÉLEVÉ (27-45 heures)
|
||||
|
||||
**Actions :**
|
||||
- Migrer vers async-rustls ou tokio-rustls
|
||||
- Rendre tout le code async (MessageManager, channels, CastDevice)
|
||||
- Adapter PMOMusic pour wrapper les appels async
|
||||
|
||||
**Avantages :**
|
||||
- ✅ Architecture moderne
|
||||
- ✅ Potentiellement meilleure performance pour gérer plusieurs devices
|
||||
- ✅ Résout probablement les problèmes TLS via stack moderne
|
||||
|
||||
**Inconvénients :**
|
||||
- ❌ Effort très élevé
|
||||
- ❌ Risque de bugs subtils
|
||||
- ❌ PMOMusic doit wrapper tous les appels avec `smol::block_on()`
|
||||
- ❌ Overhead de conversion sync→async→sync
|
||||
|
||||
**⚠️ PARADOXE :** Rendre rust-cast async pour ensuite le wrapper en sync dans PMOMusic = **surcharge inutile**
|
||||
|
||||
---
|
||||
|
||||
### Option 4 : ❌ **Migrer vers cast-sender (déjà async)**
|
||||
|
||||
**Effort :** TRÈS ÉLEVÉ (40-80 heures)
|
||||
|
||||
**Problèmes critiques :**
|
||||
- ❌ API incomplète (pas de get_status, pas de seek)
|
||||
- ❌ Nécessite architecture stateful complexe
|
||||
- ❌ Documentation insuffisante (23%)
|
||||
|
||||
**Voir :** [cast-sender-evaluation.md](cast-sender-evaluation.md)
|
||||
|
||||
---
|
||||
|
||||
## 5. Analyse détaillée : Async est-il vraiment utile ?
|
||||
|
||||
### 5.1 Cas d'usage PMOMusic
|
||||
|
||||
**Architecture actuelle :**
|
||||
- 1 thread par Chromecast actif (pour le heartbeat)
|
||||
- Opérations de contrôle (play, pause, volume) : sporadiques
|
||||
- Pas de gestion massive de connexions simultanées
|
||||
|
||||
**Bénéfice de async :**
|
||||
- ❌ **FAIBLE** : PMOMusic n'a pas besoin de gérer 100+ connexions simultanées
|
||||
- ❌ **OVERHEAD** : Wrapping sync→async→sync ajoute de la complexité
|
||||
|
||||
### 5.2 Vraie cause des problèmes TLS ?
|
||||
|
||||
Les problèmes de "fermeture TLS prématurée" sont probablement dus à :
|
||||
- Timeout réseau trop court
|
||||
- Gestion d'erreur insuffisante lors des reconnexions
|
||||
- Bugs spécifiques de certaines versions de rustls
|
||||
|
||||
**Async ne résout PAS directement ces problèmes !**
|
||||
|
||||
---
|
||||
|
||||
## 6. Recommandation finale
|
||||
|
||||
### 🏆 **Option recommandée : Option 1 (Corriger rust-cast sync)**
|
||||
|
||||
**Raisons :**
|
||||
|
||||
1. **Effort minimal** : 2-8 heures vs 27-45h pour async
|
||||
2. **Risque minimal** : Garde l'architecture validée
|
||||
3. **Compatibilité** : Pas de changement dans PMOMusic
|
||||
4. **Pragmatique** : Résout le problème réel (TLS) sans over-engineering
|
||||
|
||||
**Plan d'action concret :**
|
||||
|
||||
```rust
|
||||
// Améliorer la fonction connect_to_device
|
||||
fn connect_to_device(host: &str, port: u16) -> Result<CastDevice> {
|
||||
const MAX_RETRIES: u32 = 3;
|
||||
const RETRY_DELAY_MS: u64 = 1000;
|
||||
|
||||
for attempt in 1..=MAX_RETRIES {
|
||||
match try_connect(host, port) {
|
||||
Ok(device) => return Ok(device),
|
||||
Err(e) if attempt < MAX_RETRIES => {
|
||||
tracing::warn!(
|
||||
"Connection attempt {} failed: {}. Retrying in {}ms...",
|
||||
attempt, e, RETRY_DELAY_MS
|
||||
);
|
||||
std::thread::sleep(Duration::from_millis(RETRY_DELAY_MS));
|
||||
}
|
||||
Err(e) => return Err(e),
|
||||
}
|
||||
}
|
||||
unreachable!()
|
||||
}
|
||||
|
||||
// Ajouter timeout configurable pour les read operations
|
||||
// Ajouter meilleure gestion d'erreur dans le heartbeat loop
|
||||
```
|
||||
|
||||
---
|
||||
|
||||
### 🥈 **Alternative : Option 2 (Fork rust-cast)**
|
||||
|
||||
Si l'Option 1 ne suffit pas après investigation, forker permet :
|
||||
- Corrections TLS plus profondes
|
||||
- Ajout de fonctionnalités manquantes
|
||||
- Contrôle total
|
||||
|
||||
**Pas besoin de rendre async !**
|
||||
|
||||
---
|
||||
|
||||
### 🚫 **Options déconseillées :**
|
||||
|
||||
- ❌ **Option 3** (Async rust-cast) : Effort 5-10x supérieur pour bénéfice marginal
|
||||
- ❌ **Option 4** (cast-sender) : API incomplète, effort encore plus élevé
|
||||
|
||||
---
|
||||
|
||||
## 7. Conclusion
|
||||
|
||||
**NON, rendre rust-cast asynchrone n'est PAS plus simple.**
|
||||
|
||||
**Comparaison des efforts :**
|
||||
|
||||
| Option | Effort (heures) | Complexité | Risque |
|
||||
|--------|----------------|------------|--------|
|
||||
| 1. Corriger rust-cast sync | 2-8 | Faible | Minimal |
|
||||
| 2. Forker rust-cast | 8-16 | Moyenne | Faible |
|
||||
| 3. **Async rust-cast** | **27-45** | **Élevée** | **Élevé** |
|
||||
| 4. Migrer cast-sender | 40-80 | Très élevée | Très élevé |
|
||||
|
||||
**Le ratio effort/bénéfice de l'option async est défavorable :**
|
||||
- **5-10x plus d'effort** que corriger le code sync
|
||||
- **Bénéfice minimal** pour l'architecture actuelle de PMOMusic
|
||||
- **Risques élevés** de bugs de concurrence async
|
||||
|
||||
**Recommandation :** Commencer par l'**Option 1**, investiguer les vrais problèmes TLS, et envisager l'**Option 2** (fork) uniquement si nécessaire. Éviter absolument l'**Option 3** (async) sauf changement radical d'architecture de PMOMusic.
|
||||
|
||||
---
|
||||
|
||||
## Annexe : Si vous vouliez quand même faire async...
|
||||
|
||||
### Stack recommandée
|
||||
|
||||
**Pour PMOMusic (déjà avec smol) :**
|
||||
```toml
|
||||
[dependencies]
|
||||
async-io = "2.3"
|
||||
async-rustls = "0.4"
|
||||
futures-lite = "2.1"
|
||||
```
|
||||
|
||||
**Points d'attention :**
|
||||
- Remplacer tous les `Mutex` par `async_lock::Mutex`
|
||||
- Gérer correctement le `Unpin` trait pour les streams
|
||||
- Tester intensivement la gestion des erreurs async
|
||||
- Prévoir 2-3 semaines de développement + tests
|
||||
|
||||
**Mais encore une fois : le jeu n'en vaut pas la chandelle !**
|
||||
@@ -94,6 +94,12 @@ fn connect_to_device<'a>(host: &'a str, port: u16) -> Result<CastDevice<'a>> {
|
||||
.connect(DEFAULT_DESTINATION_ID.to_string())
|
||||
.map_err(|e| anyhow!("Failed to connect channel: {}", e))?;
|
||||
|
||||
// Send initial gre to establish heartbeat communication
|
||||
// This is critical per rust_caster.rs example
|
||||
device.heartbeat
|
||||
.ping()
|
||||
.map_err(|e| anyhow!("Failed to send initial heartbeat ping: {}", e))?;
|
||||
|
||||
Ok(device)
|
||||
}
|
||||
|
||||
|
||||
@@ -19,6 +19,8 @@ use crate::control_point::ControlPoint;
|
||||
#[cfg(feature = "pmoserver")]
|
||||
use crate::model::{MediaServerEvent, RendererEvent};
|
||||
#[cfg(feature = "pmoserver")]
|
||||
use crate::registry::DeviceRegistryRead;
|
||||
#[cfg(feature = "pmoserver")]
|
||||
use async_stream::stream;
|
||||
#[cfg(feature = "pmoserver")]
|
||||
use axum::{
|
||||
@@ -168,6 +170,32 @@ pub async fn renderer_events_sse(
|
||||
});
|
||||
|
||||
let stream = stream! {
|
||||
// INITIAL SNAPSHOT: Send Online events for all currently discovered renderers
|
||||
// This ensures clients see devices that were discovered before they connected
|
||||
let initial_renderers = {
|
||||
let registry = control_point.registry();
|
||||
let reg = registry.read().unwrap();
|
||||
reg.list_renderers()
|
||||
};
|
||||
|
||||
for info in initial_renderers {
|
||||
if info.online {
|
||||
let timestamp = chrono::Utc::now();
|
||||
let payload = RendererEventPayload::Online {
|
||||
renderer_id: info.id.0.clone(),
|
||||
friendly_name: info.friendly_name.clone(),
|
||||
model_name: info.model_name.clone(),
|
||||
manufacturer: info.manufacturer.clone(),
|
||||
timestamp,
|
||||
};
|
||||
|
||||
if let Ok(json) = serde_json::to_string(&payload) {
|
||||
yield Ok::<_, axum::Error>(Event::default().event("renderer").data(json));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Then stream future events
|
||||
while let Some(event) = rx_tokio.recv().await {
|
||||
let timestamp = chrono::Utc::now();
|
||||
|
||||
@@ -285,6 +313,32 @@ pub async fn media_server_events_sse(
|
||||
});
|
||||
|
||||
let stream = stream! {
|
||||
// INITIAL SNAPSHOT: Send Online events for all currently discovered media servers
|
||||
// This ensures clients see servers that were discovered before they connected
|
||||
let initial_servers = {
|
||||
let registry = control_point.registry();
|
||||
let reg = registry.read().unwrap();
|
||||
reg.list_servers()
|
||||
};
|
||||
|
||||
for info in initial_servers {
|
||||
if info.online {
|
||||
let timestamp = chrono::Utc::now();
|
||||
let payload = MediaServerEventPayload::Online {
|
||||
server_id: info.id.0.clone(),
|
||||
friendly_name: info.friendly_name.clone(),
|
||||
model_name: info.model_name.clone(),
|
||||
manufacturer: info.manufacturer.clone(),
|
||||
timestamp,
|
||||
};
|
||||
|
||||
if let Ok(json) = serde_json::to_string(&payload) {
|
||||
yield Ok::<_, axum::Error>(Event::default().event("media_server").data(json));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Then stream future events
|
||||
while let Some(event) = rx_tokio.recv().await {
|
||||
let timestamp = chrono::Utc::now();
|
||||
|
||||
@@ -370,6 +424,53 @@ pub async fn all_events_sse(State(control_point): State<Arc<ControlPoint>>) -> i
|
||||
});
|
||||
|
||||
let stream = stream! {
|
||||
// INITIAL SNAPSHOT: Send Online events for all currently discovered devices
|
||||
// This ensures clients see devices that were discovered before they connected
|
||||
let (initial_renderers, initial_servers) = {
|
||||
let registry = control_point.registry();
|
||||
let reg = registry.read().unwrap();
|
||||
(reg.list_renderers(), reg.list_servers())
|
||||
};
|
||||
|
||||
// Send renderer Online events
|
||||
for info in initial_renderers {
|
||||
if info.online {
|
||||
let timestamp = chrono::Utc::now();
|
||||
let renderer_payload = RendererEventPayload::Online {
|
||||
renderer_id: info.id.0.clone(),
|
||||
friendly_name: info.friendly_name.clone(),
|
||||
model_name: info.model_name.clone(),
|
||||
manufacturer: info.manufacturer.clone(),
|
||||
timestamp,
|
||||
};
|
||||
let payload = UnifiedEventPayload::Renderer(renderer_payload);
|
||||
|
||||
if let Ok(json) = serde_json::to_string(&payload) {
|
||||
yield Ok::<_, axum::Error>(Event::default().event("control").data(json));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Send server Online events
|
||||
for info in initial_servers {
|
||||
if info.online {
|
||||
let timestamp = chrono::Utc::now();
|
||||
let server_payload = MediaServerEventPayload::Online {
|
||||
server_id: info.id.0.clone(),
|
||||
friendly_name: info.friendly_name.clone(),
|
||||
model_name: info.model_name.clone(),
|
||||
manufacturer: info.manufacturer.clone(),
|
||||
timestamp,
|
||||
};
|
||||
let payload = UnifiedEventPayload::MediaServer(server_payload);
|
||||
|
||||
if let Ok(json) = serde_json::to_string(&payload) {
|
||||
yield Ok::<_, axum::Error>(Event::default().event("control").data(json));
|
||||
}
|
||||
}
|
||||
}
|
||||
|
||||
// Then stream future events
|
||||
loop {
|
||||
tokio::select! {
|
||||
Some(event) = renderer_rx_tokio.recv() => {
|
||||
|
||||
Reference in New Issue
Block a user