update stream buffering

MediaBrowser.Api/Playback/Hls/DynamicHlsService.cs

@@ -210,8 +210,6 @@ namespace MediaBrowser.Api.Playback.Hls
                         {
                             ApiEntryPoint.Instance.KillTranscodingJobs(request.DeviceId, request.PlaySessionId, p => false);
 
-                            await ReadSegmentLengths(playlistPath).ConfigureAwait(false);
-
                             if (currentTranscodingIndex.HasValue)
                             {
                                 DeleteLastFile(playlistPath, segmentExtension, 0);
@@ -255,55 +253,8 @@ namespace MediaBrowser.Api.Playback.Hls
             return await GetSegmentResult(playlistPath, segmentPath, requestedIndex, segmentLength, job, cancellationToken).ConfigureAwait(false);
         }
 
-        private static readonly ConcurrentDictionary<string, double> SegmentLengths = new ConcurrentDictionary<string, double>(StringComparer.OrdinalIgnoreCase);
-        private async Task ReadSegmentLengths(string playlist)
-        {
-            try
-            {
-                using (var fileStream = GetPlaylistFileStream(playlist))
-                {
-                    using (var reader = new StreamReader(fileStream))
-                    {
-                        double duration = -1;
-
-                        while (!reader.EndOfStream)
-                        {
-                            var text = await reader.ReadLineAsync().ConfigureAwait(false);
-
-                            if (text.StartsWith("#EXTINF", StringComparison.OrdinalIgnoreCase))
-                            {
-                                var parts = text.Split(new[] { ':' }, 2);
-                                if (parts.Length == 2)
-                                {
-                                    var time = parts[1].Trim(new[] { ',' }).Trim();
-                                    double timeValue;
-                                    if (double.TryParse(time, NumberStyles.Any, CultureInfo.InvariantCulture, out timeValue))
-                                    {
-                                        duration = timeValue;
-                                        continue;
-                                    }
-                                }
-                            }
-                            else if (duration != -1)
-                            {
-                                SegmentLengths.AddOrUpdate(text, duration, (k, v) => duration);
-                                Logger.Debug("Added segment length of {0} for {1}", duration, text);
-                            }
-
-                            duration = -1;
-                        }
-                    }
-                }
-            }
-            catch (DirectoryNotFoundException)
-            {
-
-            }
-            catch (FileNotFoundException)
-            {
-
-            }
-        }
+        // 256k
+        private const int BufferSize = 262144;
 
         private long GetSeekPositionTicks(StreamState state, string playlist, int requestedIndex)
         {
@@ -455,21 +406,18 @@ namespace MediaBrowser.Api.Playback.Hls
                 {
                     using (var fileStream = GetPlaylistFileStream(playlistPath))
                     {
-                        using (var reader = new StreamReader(fileStream))
+                        using (var reader = new StreamReader(fileStream, Encoding.UTF8, true, BufferSize))
                         {
-                            while (!reader.EndOfStream)
-                            {
-                                var text = await reader.ReadLineAsync().ConfigureAwait(false);
+                            var text = await reader.ReadToEndAsync().ConfigureAwait(false);
 
-                                // If it appears in the playlist, it's done
-                                if (text.IndexOf(segmentFilename, StringComparison.OrdinalIgnoreCase) != -1)
+                            // If it appears in the playlist, it's done
+                            if (text.IndexOf(segmentFilename, StringComparison.OrdinalIgnoreCase) != -1)
+                            {
+                                if (File.Exists(segmentPath))
                                 {
-                                    if (File.Exists(segmentPath))
-                                    {
-                                        return GetSegmentResult(segmentPath, segmentIndex, segmentLength, transcodingJob);
-                                    }
-                                    break;
+                                    return GetSegmentResult(segmentPath, segmentIndex, segmentLength, transcodingJob);
                                 }
+                                //break;
                             }
                         }
                     }

MediaBrowser.Api/Playback/Progressive/ProgressiveStreamWriter.cs

@@ -91,6 +91,9 @@ namespace MediaBrowser.Api.Playback.Progressive
         private readonly IFileSystem _fileSystem;
         private readonly TranscodingJob _job;
 
+        // 256k
+        private const int BufferSize = 262144;
+        
         private long _bytesWritten = 0;
 
         public ProgressiveFileCopier(IFileSystem fileSystem, TranscodingJob job)
@@ -108,7 +111,7 @@ namespace MediaBrowser.Api.Playback.Progressive
             {
                 while (eofCount < 15)
                 {
-                    CopyToInternal(fs, outputStream, 81920);
+                    CopyToInternal(fs, outputStream, BufferSize);
 
                     var fsPosition = fs.Position;
 

MediaBrowser.Controller/Entities/TV/Episode.cs

@@ -150,7 +150,7 @@ namespace MediaBrowser.Controller.Entities.TV
                 {
                     var series = Series;
 
-                    if (ParentIndexNumber.HasValue)
+                    if (series != null && ParentIndexNumber.HasValue)
                     {
                         var findNumber = ParentIndexNumber.Value;
 

MediaBrowser.Server.Implementations/HttpServer/RangeRequestWriter.cs

@@ -28,6 +28,9 @@ namespace MediaBrowser.Server.Implementations.HttpServer
         public Action OnComplete { get; set; }
         private readonly ILogger _logger;
 
+        // 256k
+        private const int BufferSize = 262144;
+
         /// <summary>
         /// The _options
         /// </summary>
@@ -187,7 +190,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
                     // If the requested range is "0-", we can optimize by just doing a stream copy
                     if (RangeEnd >= TotalContentLength - 1)
                     {
-                        source.CopyTo(responseStream);
+                        source.CopyTo(responseStream, BufferSize);
                     }
                     else
                     {
@@ -211,8 +214,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
 
         private void CopyToInternal(Stream source, Stream destination, long copyLength)
         {
-            const int bufferSize = 81920;
-            var array = new byte[bufferSize];
+            var array = new byte[BufferSize];
             int count;
             while ((count = source.Read(array, 0, array.Length)) != 0)
             {
@@ -249,7 +251,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
                     // If the requested range is "0-", we can optimize by just doing a stream copy
                     if (RangeEnd >= TotalContentLength - 1)
                     {
-                        await source.CopyToAsync(responseStream).ConfigureAwait(false);
+                        await source.CopyToAsync(responseStream, BufferSize).ConfigureAwait(false);
                     }
                     else
                     {
@@ -268,8 +270,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
 
         private async Task CopyToAsyncInternal(Stream source, Stream destination, int copyLength, CancellationToken cancellationToken)
         {
-            const int bufferSize = 81920;
-            var array = new byte[bufferSize];
+            var array = new byte[BufferSize];
             int count;
             while ((count = await source.ReadAsync(array, 0, array.Length, cancellationToken).ConfigureAwait(false)) != 0)
             {

MediaBrowser.Server.Implementations/HttpServer/StreamWriter.cs

@@ -81,6 +81,9 @@ namespace MediaBrowser.Server.Implementations.HttpServer
             WriteToInternal(responseStream);
         }
 
+        // 256k
+        private const int BufferSize = 262144;
+        
         /// <summary>
         /// Writes to async.
         /// </summary>
@@ -92,7 +95,7 @@ namespace MediaBrowser.Server.Implementations.HttpServer
             {
                 using (var src = SourceStream)
                 {
-                    src.CopyTo(responseStream);
+                    src.CopyTo(responseStream, BufferSize);
                 }
             }
             catch (Exception ex)

MediaBrowser.Server.Implementations/LiveTv/EmbyTV/EmbyTV.cs

@@ -525,7 +525,7 @@ namespace MediaBrowser.Server.Implementations.LiveTv.EmbyTV
                 {
                     using (var output = File.Open(recordPath, FileMode.Create, FileAccess.Write, FileShare.Read))
                     {
-                        await response.Content.CopyToAsync(output, 4096, linkedToken);
+                        await response.Content.CopyToAsync(output, 131072, linkedToken);
                     }
                 }