Fix: Add .ts fallback for video streams to prevent crash (#15690)

CONTRIBUTORS.md

@@ -205,6 +205,7 @@
  - [theshoeshiner](https://github.com/theshoeshiner)
  - [TokerX](https://github.com/TokerX)
  - [GeneMarks](https://github.com/GeneMarks)
+ - [martenumberto](https://github.com/martenumberto)
 
 # Emby Contributors
 

Jellyfin.Api/Helpers/StreamingHelpers.cs

@@ -159,6 +159,13 @@ public static class StreamingHelpers
 
         string? containerInternal = Path.GetExtension(state.RequestedUrl);
 
+        if (string.IsNullOrEmpty(containerInternal)
+            && (!string.IsNullOrWhiteSpace(streamingRequest.LiveStreamId)
+                || (mediaSource != null && mediaSource.IsInfiniteStream)))
+        {
+            containerInternal = ".ts";
+        }
+
         if (!string.IsNullOrEmpty(streamingRequest.Container))
         {
             containerInternal = streamingRequest.Container;