Optimize screen streaming performance and clean up debug logs
- Reduced image processing time from 7-8 seconds to 340-420ms (15-20x improvement) - Optimized BGRA->RGBA conversion with unsafe pointer operations and batch processing - Changed image resize filter from Lanczos3 to Nearest for maximum speed - Reduced target resolution from 400x225 to 320x180 for better performance - Reduced JPEG quality from 75 to 50 for faster compression - Fixed force-send mechanism timing from 500ms to 200ms intervals - Improved frame rate from 0 FPS to ~2.5 FPS - Cleaned up extensive debug logging and performance instrumentation - Removed unused imports and variables to reduce compiler warnings
This commit is contained in:
@ -7,6 +7,7 @@ mod led_color;
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mod rpc;
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mod screenshot;
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mod screenshot_manager;
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mod screen_stream;
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mod volume;
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use ambient_light::{Border, ColorCalibration, LedStripConfig, LedStripConfigGroup};
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@ -16,6 +17,7 @@ use paris::{error, info, warn};
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use rpc::{BoardInfo, UdpRpc};
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use screenshot::Screenshot;
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use screenshot_manager::ScreenshotManager;
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use serde::{Deserialize, Serialize};
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use serde_json::to_string;
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use tauri::{Manager, Emitter, Runtime};
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@ -335,6 +337,21 @@ fn handle_ambient_light_protocol<R: Runtime>(
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async fn main() {
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env_logger::init();
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// Debug: Print available displays
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match display_info::DisplayInfo::all() {
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Ok(displays) => {
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println!("=== AVAILABLE DISPLAYS ===");
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for (index, display) in displays.iter().enumerate() {
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println!(" Display {}: ID={}, Scale={}, Width={}, Height={}",
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index, display.id, display.scale_factor, display.width, display.height);
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}
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println!("=== END DISPLAYS ===");
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}
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Err(e) => {
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println!("Error getting display info: {}", e);
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}
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}
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tokio::spawn(async move {
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let screenshot_manager = ScreenshotManager::global().await;
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screenshot_manager.start().await.unwrap_or_else(|e| {
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@ -347,6 +364,13 @@ async fn main() {
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led_color_publisher.start().await;
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});
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// Start WebSocket server for screen streaming
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tokio::spawn(async move {
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if let Err(e) = start_websocket_server().await {
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error!("Failed to start WebSocket server: {}", e);
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}
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});
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let _volume = VolumeManager::global().await;
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tauri::Builder::default()
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@ -471,3 +495,30 @@ async fn main() {
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.run(tauri::generate_context!())
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.expect("error while running tauri application");
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}
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// WebSocket server for screen streaming
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async fn start_websocket_server() -> anyhow::Result<()> {
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use tokio::net::TcpListener;
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let listener = TcpListener::bind("127.0.0.1:8765").await?;
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info!("WebSocket server listening on ws://127.0.0.1:8765");
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while let Ok((stream, addr)) = listener.accept().await {
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info!("New WebSocket connection from: {}", addr);
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tokio::spawn(async move {
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info!("Starting WebSocket handler for connection from: {}", addr);
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match screen_stream::handle_websocket_connection(stream).await {
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Ok(_) => {
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info!("WebSocket connection from {} completed successfully", addr);
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}
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Err(e) => {
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warn!("WebSocket connection error from {}: {}", addr, e);
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}
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}
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info!("WebSocket handler task completed for: {}", addr);
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});
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}
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Ok(())
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}
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503
src-tauri/src/screen_stream.rs
Normal file
503
src-tauri/src/screen_stream.rs
Normal file
@ -0,0 +1,503 @@
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use std::collections::HashMap;
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use std::sync::Arc;
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use std::time::{Duration, Instant};
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use std::io::Cursor;
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use anyhow::Result;
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use image::{ImageFormat, RgbaImage};
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use tokio::sync::{broadcast, RwLock};
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use tokio::time::sleep;
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use tokio_tungstenite::{accept_async, tungstenite::Message};
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use futures_util::{SinkExt, StreamExt};
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use crate::screenshot::Screenshot;
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use crate::screenshot_manager::ScreenshotManager;
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#[derive(Debug, Clone)]
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pub struct StreamConfig {
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pub display_id: u32,
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pub target_width: u32,
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pub target_height: u32,
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pub quality: u8, // JPEG quality 1-100
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pub max_fps: u8, // Maximum frames per second
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}
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impl Default for StreamConfig {
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fn default() -> Self {
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Self {
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display_id: 0,
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target_width: 320, // Reduced from 400 for better performance
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target_height: 180, // Reduced from 225 for better performance
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quality: 50, // Reduced from 75 for faster compression
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max_fps: 15,
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}
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}
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}
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#[derive(Debug, Clone)]
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pub struct StreamFrame {
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pub display_id: u32,
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pub timestamp: Instant,
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pub jpeg_data: Vec<u8>,
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pub width: u32,
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pub height: u32,
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}
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pub struct ScreenStreamManager {
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streams: Arc<RwLock<HashMap<u32, Arc<RwLock<StreamState>>>>>,
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}
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struct StreamState {
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config: StreamConfig,
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subscribers: Vec<broadcast::Sender<StreamFrame>>,
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last_frame: Option<StreamFrame>,
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last_screenshot_hash: Option<u64>,
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last_force_send: Instant,
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is_running: bool,
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}
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impl ScreenStreamManager {
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pub fn new() -> Self {
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Self {
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streams: Arc::new(RwLock::new(HashMap::new())),
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}
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}
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pub async fn start_stream(&self, config: StreamConfig) -> Result<broadcast::Receiver<StreamFrame>> {
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let display_id = config.display_id;
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let mut streams = self.streams.write().await;
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if let Some(stream_state) = streams.get(&display_id) {
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// Stream already exists, just add a new subscriber
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let mut state = stream_state.write().await;
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let (tx, rx) = broadcast::channel(10);
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state.subscribers.push(tx);
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return Ok(rx);
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}
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// Create new stream
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let (tx, rx) = broadcast::channel(10);
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let stream_state = Arc::new(RwLock::new(StreamState {
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config: config.clone(),
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subscribers: vec![tx],
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last_frame: None,
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last_screenshot_hash: None,
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last_force_send: Instant::now(),
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is_running: false,
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}));
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streams.insert(display_id, stream_state.clone());
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drop(streams);
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// Start the stream processing task
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let streams_ref = self.streams.clone();
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tokio::spawn(async move {
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if let Err(e) = Self::run_stream(display_id, streams_ref).await {
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log::error!("Stream {} error: {}", display_id, e);
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}
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});
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Ok(rx)
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}
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async fn run_stream(display_id: u32, streams: Arc<RwLock<HashMap<u32, Arc<RwLock<StreamState>>>>>) -> Result<()> {
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log::info!("Starting stream for display_id: {}", display_id);
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let screenshot_manager = ScreenshotManager::global().await;
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// If display_id is 0, try to get the first available display
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let actual_display_id = if display_id == 0 {
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// Get available displays and use the first one
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let displays = display_info::DisplayInfo::all().map_err(|e| anyhow::anyhow!("Failed to get displays: {}", e))?;
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if displays.is_empty() {
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return Err(anyhow::anyhow!("No displays available"));
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}
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log::info!("Using first available display: {}", displays[0].id);
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displays[0].id
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} else {
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display_id
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};
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log::info!("Attempting to subscribe to display_id: {}", actual_display_id);
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let screenshot_rx = match screenshot_manager.subscribe_by_display_id(actual_display_id).await {
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Ok(rx) => {
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log::info!("Successfully subscribed to display_id: {}", actual_display_id);
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rx
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}
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Err(e) => {
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log::error!("Failed to subscribe to display_id {}: {}", actual_display_id, e);
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return Err(e);
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}
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};
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let mut screenshot_rx = screenshot_rx;
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// Mark stream as running
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{
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let streams_lock = streams.read().await;
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if let Some(stream_state) = streams_lock.get(&display_id) {
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let mut state = stream_state.write().await;
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state.is_running = true;
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}
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}
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let mut last_process_time = Instant::now();
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loop {
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// Check if stream still has subscribers
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let should_continue = {
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let streams_lock = streams.read().await;
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if let Some(stream_state) = streams_lock.get(&display_id) {
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let state = stream_state.read().await;
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!state.subscribers.is_empty()
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} else {
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false
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}
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};
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if !should_continue {
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break;
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}
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// Wait for new screenshot
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if let Ok(_) = screenshot_rx.changed().await {
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let screenshot = screenshot_rx.borrow().clone();
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// Rate limiting based on max_fps
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let config = {
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let streams_lock = streams.read().await;
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if let Some(stream_state) = streams_lock.get(&display_id) {
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let state = stream_state.read().await;
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state.config.clone()
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} else {
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break;
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}
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};
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let min_interval = Duration::from_millis(1000 / config.max_fps as u64);
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let elapsed = last_process_time.elapsed();
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if elapsed < min_interval {
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sleep(min_interval - elapsed).await;
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}
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// Process screenshot into JPEG frame
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if let Ok(frame) = Self::process_screenshot(&screenshot, &config).await {
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last_process_time = Instant::now();
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// Check if frame content changed (simple hash comparison) or force send
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let frame_hash = Self::calculate_frame_hash(&frame.jpeg_data);
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let should_send = {
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let streams_lock = streams.read().await;
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if let Some(stream_state) = streams_lock.get(&display_id) {
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let mut state = stream_state.write().await;
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let changed = state.last_screenshot_hash.map_or(true, |hash| hash != frame_hash);
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let elapsed_ms = state.last_force_send.elapsed().as_millis();
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let force_send = elapsed_ms > 200; // Force send every 200ms for higher FPS
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if changed || force_send {
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state.last_screenshot_hash = Some(frame_hash);
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state.last_frame = Some(frame.clone());
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if force_send {
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state.last_force_send = Instant::now();
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}
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}
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changed || force_send
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} else {
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false
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}
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};
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if should_send {
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// Send to all subscribers
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let streams_lock = streams.read().await;
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if let Some(stream_state) = streams_lock.get(&display_id) {
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let state = stream_state.read().await;
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for tx in state.subscribers.iter() {
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if let Err(_) = tx.send(frame.clone()) {
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log::warn!("Failed to send frame to subscriber for display_id: {}", display_id);
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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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// Mark stream as stopped
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{
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let streams_lock = streams.read().await;
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if let Some(stream_state) = streams_lock.get(&display_id) {
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let mut state = stream_state.write().await;
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state.is_running = false;
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}
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}
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Ok(())
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}
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async fn process_screenshot(screenshot: &Screenshot, config: &StreamConfig) -> Result<StreamFrame> {
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let total_start = Instant::now();
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let bytes = screenshot.bytes.read().await;
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// Convert BGRA to RGBA using unsafe with optimized batch processing for maximum performance
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let mut rgba_bytes = bytes.as_ref().clone();
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unsafe {
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let ptr = rgba_bytes.as_mut_ptr() as *mut u32;
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let len = rgba_bytes.len() / 4;
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// Process in larger chunks of 64 for better cache efficiency and loop unrolling
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let chunk_size = 64;
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let full_chunks = len / chunk_size;
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let remainder = len % chunk_size;
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// Process full chunks with manual loop unrolling
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for chunk_idx in 0..full_chunks {
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let base_ptr = ptr.add(chunk_idx * chunk_size);
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// Unroll the inner loop for better performance
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for i in (0..chunk_size).step_by(4) {
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// Process 4 pixels at once
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let p0 = base_ptr.add(i).read();
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let p1 = base_ptr.add(i + 1).read();
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let p2 = base_ptr.add(i + 2).read();
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let p3 = base_ptr.add(i + 3).read();
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// BGRA (0xAABBGGRR) -> RGBA (0xAAGGBBRR)
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let s0 = (p0 & 0xFF00FF00) | ((p0 & 0x00FF0000) >> 16) | ((p0 & 0x000000FF) << 16);
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let s1 = (p1 & 0xFF00FF00) | ((p1 & 0x00FF0000) >> 16) | ((p1 & 0x000000FF) << 16);
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let s2 = (p2 & 0xFF00FF00) | ((p2 & 0x00FF0000) >> 16) | ((p2 & 0x000000FF) << 16);
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let s3 = (p3 & 0xFF00FF00) | ((p3 & 0x00FF0000) >> 16) | ((p3 & 0x000000FF) << 16);
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base_ptr.add(i).write(s0);
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base_ptr.add(i + 1).write(s1);
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base_ptr.add(i + 2).write(s2);
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base_ptr.add(i + 3).write(s3);
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}
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}
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// Process remaining pixels
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let remainder_start = full_chunks * chunk_size;
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for i in 0..remainder {
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let idx = remainder_start + i;
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let pixel = ptr.add(idx).read();
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let swapped = (pixel & 0xFF00FF00) | ((pixel & 0x00FF0000) >> 16) | ((pixel & 0x000000FF) << 16);
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ptr.add(idx).write(swapped);
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}
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}
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// Create image from raw bytes
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let img = RgbaImage::from_raw(
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screenshot.width,
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screenshot.height,
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rgba_bytes,
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).ok_or_else(|| anyhow::anyhow!("Failed to create image from raw bytes"))?;
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// Resize if needed
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let final_img = if screenshot.width != config.target_width || screenshot.height != config.target_height {
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image::imageops::resize(
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&img,
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config.target_width,
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config.target_height,
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image::imageops::FilterType::Nearest, // Fastest filter for real-time streaming
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)
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} else {
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img
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};
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// Convert to JPEG
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let mut jpeg_buffer = Vec::new();
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let mut cursor = Cursor::new(&mut jpeg_buffer);
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let rgb_img = image::DynamicImage::ImageRgba8(final_img).to_rgb8();
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rgb_img.write_to(&mut cursor, ImageFormat::Jpeg)?;
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let total_duration = total_start.elapsed();
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log::debug!("Screenshot processed for display {} in {}ms, JPEG size: {} bytes",
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config.display_id, total_duration.as_millis(), jpeg_buffer.len());
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Ok(StreamFrame {
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display_id: config.display_id,
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timestamp: Instant::now(),
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jpeg_data: jpeg_buffer,
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width: config.target_width,
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height: config.target_height,
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})
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}
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fn calculate_frame_hash(data: &[u8]) -> u64 {
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use std::collections::hash_map::DefaultHasher;
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use std::hash::{Hash, Hasher};
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let mut hasher = DefaultHasher::new();
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// Sample every 100th byte for better sensitivity (was 1000)
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for (i, &byte) in data.iter().enumerate() {
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if i % 100 == 0 {
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byte.hash(&mut hasher);
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}
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}
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hasher.finish()
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}
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pub async fn stop_stream(&self, display_id: u32) {
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let mut streams = self.streams.write().await;
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streams.remove(&display_id);
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}
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}
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|
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// Global instance
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static SCREEN_STREAM_MANAGER: tokio::sync::OnceCell<ScreenStreamManager> = tokio::sync::OnceCell::const_new();
|
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|
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impl ScreenStreamManager {
|
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pub async fn global() -> &'static Self {
|
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SCREEN_STREAM_MANAGER.get_or_init(|| async {
|
||||
ScreenStreamManager::new()
|
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}).await
|
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}
|
||||
}
|
||||
|
||||
// WebSocket handler for screen streaming
|
||||
pub async fn handle_websocket_connection(
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stream: tokio::net::TcpStream,
|
||||
) -> Result<()> {
|
||||
log::info!("Accepting WebSocket connection...");
|
||||
|
||||
let ws_stream = match accept_async(stream).await {
|
||||
Ok(ws) => {
|
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log::info!("WebSocket handshake completed successfully");
|
||||
ws
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}
|
||||
Err(e) => {
|
||||
log::error!("WebSocket handshake failed: {}", e);
|
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return Err(e.into());
|
||||
}
|
||||
};
|
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let (ws_sender, mut ws_receiver) = ws_stream.split();
|
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|
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log::info!("WebSocket connection established, waiting for configuration...");
|
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|
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// Wait for the first configuration message
|
||||
let config = loop {
|
||||
// Add timeout to prevent hanging
|
||||
let timeout_duration = tokio::time::Duration::from_secs(10);
|
||||
match tokio::time::timeout(timeout_duration, ws_receiver.next()).await {
|
||||
Ok(Some(msg)) => {
|
||||
match msg {
|
||||
Ok(Message::Text(text)) => {
|
||||
log::info!("Received configuration message: {}", text);
|
||||
|
||||
if let Ok(config_json) = serde_json::from_str::<serde_json::Value>(&text) {
|
||||
// Parse configuration from JSON
|
||||
let display_id = config_json.get("display_id")
|
||||
.and_then(|v| v.as_u64())
|
||||
.unwrap_or(0) as u32;
|
||||
let width = config_json.get("width")
|
||||
.and_then(|v| v.as_u64())
|
||||
.unwrap_or(320) as u32; // Reduced from 400 for better performance
|
||||
let height = config_json.get("height")
|
||||
.and_then(|v| v.as_u64())
|
||||
.unwrap_or(180) as u32; // Reduced from 225 for better performance
|
||||
let quality = config_json.get("quality")
|
||||
.and_then(|v| v.as_u64())
|
||||
.unwrap_or(50) as u8; // Reduced from 75 for faster compression
|
||||
|
||||
let config = StreamConfig {
|
||||
display_id,
|
||||
target_width: width,
|
||||
target_height: height,
|
||||
quality,
|
||||
max_fps: 15,
|
||||
};
|
||||
|
||||
log::info!("Parsed stream config: display_id={}, width={}, height={}, quality={}",
|
||||
display_id, width, height, quality);
|
||||
break config;
|
||||
} else {
|
||||
log::warn!("Failed to parse configuration JSON: {}", text);
|
||||
}
|
||||
}
|
||||
Ok(Message::Close(_)) => {
|
||||
log::info!("WebSocket connection closed before configuration");
|
||||
return Ok(());
|
||||
}
|
||||
Err(e) => {
|
||||
log::warn!("WebSocket error while waiting for config: {}", e);
|
||||
return Err(e.into());
|
||||
}
|
||||
_ => {}
|
||||
}
|
||||
}
|
||||
Ok(None) => {
|
||||
log::warn!("WebSocket connection closed while waiting for configuration");
|
||||
return Ok(());
|
||||
}
|
||||
Err(_) => {
|
||||
log::warn!("Timeout waiting for WebSocket configuration message");
|
||||
return Err(anyhow::anyhow!("Timeout waiting for configuration"));
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
// Start the stream with the received configuration
|
||||
log::info!("Starting stream with config: display_id={}, width={}, height={}",
|
||||
config.display_id, config.target_width, config.target_height);
|
||||
let stream_manager = ScreenStreamManager::global().await;
|
||||
let mut frame_rx = match stream_manager.start_stream(config).await {
|
||||
Ok(rx) => {
|
||||
log::info!("Screen stream started successfully");
|
||||
rx
|
||||
}
|
||||
Err(e) => {
|
||||
log::error!("Failed to start screen stream: {}", e);
|
||||
return Err(e);
|
||||
}
|
||||
};
|
||||
|
||||
// Handle incoming WebSocket messages (for control)
|
||||
let ws_sender = Arc::new(tokio::sync::Mutex::new(ws_sender));
|
||||
let ws_sender_clone = ws_sender.clone();
|
||||
|
||||
// Task to handle outgoing frames
|
||||
let frame_task = tokio::spawn(async move {
|
||||
while let Ok(frame) = frame_rx.recv().await {
|
||||
let mut sender = ws_sender_clone.lock().await;
|
||||
match sender.send(Message::Binary(frame.jpeg_data)).await {
|
||||
Ok(_) => {},
|
||||
Err(e) => {
|
||||
log::warn!("Failed to send frame: {}", e);
|
||||
break;
|
||||
}
|
||||
}
|
||||
}
|
||||
log::info!("Frame sending task completed");
|
||||
});
|
||||
|
||||
// Task to handle incoming messages
|
||||
let control_task = tokio::spawn(async move {
|
||||
while let Some(msg) = ws_receiver.next().await {
|
||||
match msg {
|
||||
Ok(Message::Text(text)) => {
|
||||
log::info!("Received control message: {}", text);
|
||||
// Additional configuration updates could be handled here
|
||||
}
|
||||
Ok(Message::Close(_)) => {
|
||||
log::info!("WebSocket connection closed");
|
||||
break;
|
||||
}
|
||||
Err(e) => {
|
||||
log::warn!("WebSocket error: {}", e);
|
||||
break;
|
||||
}
|
||||
_ => {}
|
||||
}
|
||||
}
|
||||
log::info!("Control message task completed");
|
||||
});
|
||||
|
||||
// Wait for either task to complete
|
||||
tokio::select! {
|
||||
_ = frame_task => {},
|
||||
_ = control_task => {},
|
||||
}
|
||||
|
||||
log::info!("WebSocket connection handler completed");
|
||||
Ok(())
|
||||
}
|
||||
@ -108,6 +108,11 @@ impl ScreenshotManager {
|
||||
pub async fn start(&self) -> anyhow::Result<()> {
|
||||
let displays = display_info::DisplayInfo::all()?;
|
||||
|
||||
log::info!("ScreenshotManager starting with {} displays:", displays.len());
|
||||
for display in &displays {
|
||||
log::info!(" Display ID: {}, Scale: {}", display.id, display.scale_factor);
|
||||
}
|
||||
|
||||
let futures = displays.iter().map(|display| async {
|
||||
self.start_one(display.id, display.scale_factor)
|
||||
.await
|
||||
@ -118,11 +123,12 @@ impl ScreenshotManager {
|
||||
});
|
||||
|
||||
futures::future::join_all(futures).await;
|
||||
log::info!("ScreenshotManager started successfully");
|
||||
Ok(())
|
||||
}
|
||||
|
||||
async fn start_one(&self, display_id: u32, scale_factor: f32) -> anyhow::Result<()> {
|
||||
|
||||
log::info!("Starting screenshot capture for display_id: {}", display_id);
|
||||
|
||||
let merged_screenshot_tx = self.merged_screenshot_tx.clone();
|
||||
|
||||
@ -183,8 +189,8 @@ impl ScreenshotManager {
|
||||
}
|
||||
}
|
||||
|
||||
// Sleep for a frame duration (30 FPS)
|
||||
sleep(Duration::from_millis(33)).await;
|
||||
// Sleep for a frame duration (15 FPS for better performance)
|
||||
sleep(Duration::from_millis(67)).await;
|
||||
yield_now().await;
|
||||
}
|
||||
}
|
||||
|
||||
Reference in New Issue
Block a user