fix(hls): improve buffering and error handling in HLS player

- Adjust Hls.js config

src/app/api/stream/hls/[id]/cleanup/route.ts

@@ -76,10 +76,12 @@ export async function GET(
     const response = {
       videoId,
       session: session ? {
-        sessionId: session.sessionId,
+        videoId: session.videoId,
+        videoPath: session.videoPath,
         status: session.status,
         segmentCount: session.segmentCount,
         totalDuration: session.totalDuration,
+        referenceCount: session.referenceCount,
         createdAt: session.createdAt,
         lastAccessed: session.lastAccessed,
         tempDir: session.tempDir,

src/components/artplayer-wrapper.tsx

@@ -182,16 +182,28 @@ export default function ArtPlayerWrapper({
               hlsInstance = new Hls({
                 debug: process.env.NODE_ENV === 'development',
                 enableWorker: true,
-                lowLatencyMode: true,
+                lowLatencyMode: false, // Disable for better buffering
                 backBufferLength: 90,
-                maxBufferLength: 300,
-                maxBufferSize: 60 * 1000 * 1000, // 60MB
+                maxBufferLength: 120, // Increase buffer length
+                maxBufferSize: 100 * 1000 * 1000, // 100MB buffer
+                maxBufferHole: 0.5, // Allow small holes
                 startLevel: -1, // Auto-select optimal quality
                 capLevelToPlayerSize: true,
                 autoStartLoad: true,
                 maxFragLookUpTolerance: 0.25,
                 liveSyncDurationCount: 3,
                 liveMaxLatencyDurationCount: 10,
+                // Aggressive preloading for better buffering
+                manifestLoadingTimeOut: 10000,
+                manifestLoadingMaxRetry: 2,
+                levelLoadingTimeOut: 10000,
+                levelLoadingMaxRetry: 2,
+                fragLoadingTimeOut: 20000, // Longer timeout for large segments
+                fragLoadingMaxRetry: 3,
+                // Bandwidth estimation settings
+                abrEwmaDefaultEstimate: 500000, // 500kbps initial estimate
+                abrBandWidthFactor: 0.95,
+                abrBandWidthUpFactor: 0.7,
               });
               
               // Set up comprehensive error handling
@@ -242,8 +254,26 @@ export default function ArtPlayerWrapper({
                 }
               });
               
+              // Monitor fragment loading for debugging
+              hlsInstance.on(Hls.Events.FRAG_LOADING, (event, data) => {
+                console.log(`Loading fragment ${data.frag.sn}: ${data.frag.url}`);
+              });
+              
+              hlsInstance.on(Hls.Events.FRAG_LOADED, (event, data) => {
+                console.log(`Loaded fragment ${data.frag.sn} (${(data.payload.byteLength / 1024).toFixed(1)}KB)`);
+              });
+              
               hlsInstance.on(Hls.Events.ERROR, (event: string, data: any) => {
-                console.error('HLS error:', data);
+                console.error('HLS error details:', {
+                  type: data.type,
+                  details: data.details,
+                  fatal: data.fatal,
+                  url: data.url,
+                  reason: data.reason,
+                  level: data.level,
+                  fragCurrent: data.fragCurrent,
+                  response: data.response
+                });
                 
                 if (data.fatal) {
                   switch (data.type) {
@@ -261,6 +291,18 @@ export default function ArtPlayerWrapper({
                       // This will trigger fallback in the parent component
                       break;
                   }
+                } else {
+                  // Handle non-fatal errors
+                  switch (data.details) {
+                    case Hls.ErrorDetails.FRAG_PARSING_ERROR:
+                      console.warn('Fragment parsing error, will continue with next segment');
+                      break;
+                    case Hls.ErrorDetails.BUFFER_STALLED_ERROR:
+                      console.warn('Buffer stalled, attempting to unstall');
+                      break;
+                    default:
+                      console.warn('Non-fatal HLS error:', data.details);
+                  }
                 }
               });
               

src/lib/ts-segmentation-service.ts

@@ -41,7 +41,7 @@ export interface SegmentationConfig {
 
 const DEFAULT_CONFIG: SegmentationConfig = {
   tempDir: '/tmp/nextav-hls',
-  segmentDuration: 6,
+  segmentDuration: 4, // Reduce from 6 to 4 seconds for smaller segments
   sessionTTL: 30 * 60 * 1000, // 30 minutes
   maxConcurrentJobs: 2,
   minDiskSpace: 1024 * 1024 * 1024, // 1GB