update

Jellyfin.Api/Controllers/TrickplayController.cs

@@ -128,6 +128,7 @@ public class TrickplayController : BaseJellyfinApiController
                 var layout = tilesInfo.TileWidth.ToString(CultureInfo.InvariantCulture) + "x" + tilesInfo.TileHeight.ToString(CultureInfo.InvariantCulture);
                 var tilesPerGrid = tilesInfo.TileWidth * tilesInfo.TileHeight;
                 var tileDuration = (decimal)tilesInfo.Interval / 1000;
+                var infDuration = tileDuration * tilesPerGrid;
                 var tileGridCount = (int)Math.Ceiling((decimal)tilesInfo.TileCount / tilesPerGrid);
 
                 builder.AppendLine("#EXTM3U");
@@ -144,9 +145,9 @@ public class TrickplayController : BaseJellyfinApiController
                     if (i == tileGridCount - 1)
                     {
                         tilesPerGrid = tilesInfo.TileCount - (i * tilesPerGrid);
+                        infDuration = tileDuration * tilesPerGrid;
                     }
 
-                    var infDuration = tileDuration * tilesPerGrid;
                     var url = string.Format(
                         CultureInfo.InvariantCulture,
                         urlFormat,

MediaBrowser.Providers/Trickplay/TrickplayManager.cs

@@ -127,7 +127,7 @@ namespace MediaBrowser.Providers.Trickplay
 
                 // Create tiles
                 var tilesTempDir = Path.Combine(imgTempDir, Guid.NewGuid().ToString("N"));
-                var tilesInfo = CreateTiles(images, width, interval, tileWidth, tileHeight, tilesTempDir, outputDir);
+                var tilesInfo = CreateTiles(images, width, interval, tileWidth, tileHeight, 100/* todo _config.JpegQuality*/, tilesTempDir, outputDir);
 
                 // Save tiles info
                 try
@@ -166,7 +166,7 @@ namespace MediaBrowser.Providers.Trickplay
             }
         }
 
-        private TrickplayTilesInfo CreateTiles(List<FileSystemMetadata> images, int width, int interval, int tileWidth, int tileHeight, string workDir, string outputDir)
+        private TrickplayTilesInfo CreateTiles(List<FileSystemMetadata> images, int width, int interval, int tileWidth, int tileHeight, int quality, string workDir, string outputDir)
         {
             if (images.Count == 0)
             {
@@ -244,7 +244,7 @@ namespace MediaBrowser.Providers.Trickplay
                 var tileGridPath = Path.Combine(workDir, $"{imgNo}.jpg");
                 using (var stream = File.OpenWrite(tileGridPath))
                 {
-                    tileGrid.Encode(stream, SKEncodedImageFormat.Jpeg, 100/* todo _config.JpegQuality*/);
+                    tileGrid.Encode(stream, SKEncodedImageFormat.Jpeg, quality);
                 }
 
                 var bitrate = (int)Math.Ceiling((decimal)new FileInfo(tileGridPath).Length * 8 / tilesInfo.TileWidth / tilesInfo.TileHeight / (tilesInfo.Interval / 1000));

MediaBrowser.Providers/Trickplay/TrickplayProvider.cs

@@ -107,14 +107,12 @@ namespace MediaBrowser.Providers.Trickplay
 
             if (options.IsAutomated && !enableDuringScan.GetValueOrDefault(false))
             {
-                _logger.LogDebug("exit refresh: automated - {0} enable scan - {1}", options.IsAutomated, enableDuringScan.GetValueOrDefault(false));
                 return ItemUpdateType.None;
             }
 
             // TODO: this is always blocking for metadata collection, make non-blocking option
             if (true)
             {
-                _logger.LogDebug("called refresh");
                 await _trickplayManager.RefreshTrickplayData(video, replace, cancellationToken).ConfigureAwait(false);
             }