Fix early filestream close

Emby.Server.Implementations/LiveTv/TunerHosts/SharedHttpStream.cs

@@ -55,7 +55,7 @@ namespace Emby.Server.Implementations.LiveTv.TunerHosts
             var typeName = GetType().Name;
             Logger.LogInformation("Opening " + typeName + " Live stream from {0}", url);
 
-            using var response = await _httpClientFactory.CreateClient(NamedClient.Default)
+            var response = await _httpClientFactory.CreateClient(NamedClient.Default)
                 .GetAsync(url, HttpCompletionOption.ResponseHeadersRead, CancellationToken.None)
                 .ConfigureAwait(false);
 

Jellyfin.Api/Controllers/LiveTvController.cs

@@ -1220,11 +1220,11 @@ namespace Jellyfin.Api.Controllers
                 return NotFound();
             }
 
-            await using var memoryStream = new MemoryStream();
             await new ProgressiveFileCopier(liveStreamInfo, null, _transcodingJobHelper, CancellationToken.None)
-                .WriteToAsync(memoryStream, CancellationToken.None)
+                .WriteToAsync(Response.Body, CancellationToken.None)
                 .ConfigureAwait(false);
-            return File(memoryStream, MimeTypes.GetMimeType("file." + container));
+            Response.ContentType = MimeTypes.GetMimeType("file." + container);
+            return Ok();
         }
 
         private void AssertUserCanManageLiveTv()