Fix AV1 playback in LiveTV

AV1 in fMP4 requires global_header data for parsing.
Only disable global_header in TS since it has no global_header.

Signed-off-by: nyanmisaka <nst799610810@gmail.com>

Jellyfin.Api/Controllers/DynamicHlsController.cs

@@ -1651,7 +1651,7 @@ public class DynamicHlsController : BaseJellyfinApiController
             _encodingHelper.GetInputArgument(state, _encodingOptions, segmentContainer),
             threads,
             mapArgs,
-            GetVideoArguments(state, startNumber, isEventPlaylist),
+            GetVideoArguments(state, startNumber, isEventPlaylist, segmentContainer),
             GetAudioArguments(state),
             maxMuxingQueueSize,
             state.SegmentLength.ToString(CultureInfo.InvariantCulture),
@@ -1814,8 +1814,9 @@ public class DynamicHlsController : BaseJellyfinApiController
     /// <param name="state">The <see cref="StreamState"/>.</param>
     /// <param name="startNumber">The first number in the hls sequence.</param>
     /// <param name="isEventPlaylist">Whether the playlist is EVENT or VOD.</param>
+    /// <param name="segmentContainer">The segment container.</param>
     /// <returns>The command line arguments for video transcoding.</returns>
-    private string GetVideoArguments(StreamState state, int startNumber, bool isEventPlaylist)
+    private string GetVideoArguments(StreamState state, int startNumber, bool isEventPlaylist, string segmentContainer)
     {
         if (state.VideoStream is null)
         {
@@ -1907,7 +1908,7 @@ public class DynamicHlsController : BaseJellyfinApiController
         }
 
         // TODO why was this not enabled for VOD?
-        if (isEventPlaylist)
+        if (isEventPlaylist && string.Equals(segmentContainer, "ts", StringComparison.OrdinalIgnoreCase))
         {
             args += " -flags -global_header";
         }