perf(player): implement Turbo Start for faster zapping while maintaining stability

web/player.html

@@ -255,16 +255,16 @@
             const hls = new Hls({
                 maxBufferLength: 120,
                 enableWorker: true,
-                liveSyncDurationCount: 10, // Increased for desktop stability
+                liveSyncDurationCount: 3, // Reduced for faster initial sync
                 nudgeOffset: 0.4,
                 nudgeMaxRetries: 15,
                 maxLiveSyncPlaybackRate: 1.15,
                 // Turbo-Start specific
-                startLevel: isTurbo ? 0 : -1,
+                startLevel: 0, // Force lowest level for instant start
                 initialLiveManifestSize: 1,
                 abrEwmaDefaultEstimate: 500000,
-                manifestLoadingRetryDelay: 1000,
-                levelLoadingRetryDelay: 1000
+                manifestLoadingRetryDelay: 500,
+                levelLoadingRetryDelay: 500
             });
             window.hlsInstance = hls;
             hls.loadSource(url);
@@ -292,7 +292,7 @@
             if (!mpegts.isSupported()) return false;
             const player = mpegts.createPlayer({ type: 'mpegts', isLive: isLive, url: url }, { 
                 enableWorker: true, 
-                stashInitialSize: 512 * 1024,
+                stashInitialSize: 64 * 1024, // Turbo Start: 64KB initial buffer
                 maxStashSize: 20 * 1024 * 1024 // 20MB buffer capacity
             });
             player.attachMediaElement(video);

web/player_lite.html

@@ -248,7 +248,7 @@
                 maxBufferLength: 120, // Doubled for stability
                 maxMaxBufferLength: 240,
                 enableWorker: true,
-                liveSyncDurationCount: 12, // Increased distance from live edge (TiviMate style) for high latency
+                liveSyncDurationCount: 3, // Reduced for faster initial sync
                 liveMaxLatencyDurationCount: 40,
                 lowLatencyMode: false, // Disabled for better stability on laggy connections
                 // Robustness features
@@ -256,11 +256,11 @@
                 nudgeMaxRetries: 20,
                 maxLiveSyncPlaybackRate: 1.2, // Smooth catch-up
                 // Turbo-Start specific
-                startLevel: isTurbo ? 0 : -1,
+                startLevel: 0, // Force lowest level for instant start
                 initialLiveManifestSize: 1,
                 abrEwmaDefaultEstimate: 500000,
-                manifestLoadingRetryDelay: 1000,
-                levelLoadingRetryDelay: 1000
+                manifestLoadingRetryDelay: 500,
+                levelLoadingRetryDelay: 500
             });
 
             window.hlsInstance = hls;
@@ -296,7 +296,7 @@
                 url: url
             }, {
                 enableWorker: true,
-                stashInitialSize: 512 * 1024,
+                stashInitialSize: 64 * 1024, // Turbo Start: 64KB initial buffer
                 enableStashBuffer: true,
                 liveBufferLatencyChasing: true,
                 liveBufferLatencyChasingOnPaused: true,

web/player_mobile.html

@@ -233,8 +233,8 @@
                 const hls = new Hls({
                     maxBufferLength: 60,
                     maxMaxBufferLength: 120,
-                    liveSyncDurationCount: 6,
-                    liveMaxLatencyDurationCount: 20,
+                    liveSyncDurationCount: 3, // Reduced for faster initial sync on mobile
+                    liveMaxLatencyDurationCount: 15,
                     enableWorker: true,
                     lowLatencyMode: true,
                     // Robustness
@@ -242,11 +242,11 @@
                     nudgeMaxRetries: 10,
                     maxLiveSyncPlaybackRate: 1.1,
                     // Turbo-Start specific
-                    startLevel: isTurbo ? 0 : -1,
+                    startLevel: 0, // Force lowest level for instant start
                     initialLiveManifestSize: 1,
                     abrEwmaDefaultEstimate: 500000,
-                    manifestLoadingRetryDelay: 800,
-                    levelLoadingRetryDelay: 800
+                    manifestLoadingRetryDelay: 500,
+                    levelLoadingRetryDelay: 500
                 });
                 hls.loadSource(streamUrl);
                 hls.attachMedia(video);
@@ -271,8 +271,9 @@
                     url: streamUrl
                 }, {
                     enableWorker: true,
-                    stashInitialSize: 2 * 1024 * 1024,
-                    enableStashBuffer: true
+                    stashInitialSize: 128 * 1024, // Turbo Start: 128KB initial buffer
+                    enableStashBuffer: true,
+                    maxStashSize: 20 * 1024 * 1024 // 20MB Max for stability
                 });
                 player.attachMediaElement(video);
                 player.load();