From 0cbae4a06d49acccfd7a757039f7f6725cdc53a5 Mon Sep 17 00:00:00 2001
From: artiume <siderite@gmail.com>
Date: Thu, 16 Jan 2020 12:51:34 -0500
Subject: [PATCH] Tcoding

https://github.com/jellyfin/jellyfin/pull/2184
---
 .../MediaEncoding/EncodingHelper.cs                   | 11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index 020f0553ed..765932023b 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -2750,6 +2750,8 @@ namespace MediaBrowser.Controller.MediaEncoding
                 args += " -mpegts_m2ts_mode 1";
             }
 
+            var supportsGlobalHeaderFlag = state.OutputContainer != "mkv";
+            
             if (string.Equals(videoCodec, "copy", StringComparison.OrdinalIgnoreCase))
             {
                 if (state.VideoStream != null
@@ -2770,7 +2772,12 @@ namespace MediaBrowser.Controller.MediaEncoding
 
                 if (!state.RunTimeTicks.HasValue)
                 {
-                    args += " -flags -global_header -fflags +genpts";
+                    if(supportsGlobalHeaderFlag)
+                    {
+                        args += " -flags -global_header";
+                    }
+
+                     args += " -fflags +genpts";
                 }
             }
             else
@@ -2816,7 +2823,7 @@ namespace MediaBrowser.Controller.MediaEncoding
                     args += " " + qualityParam.Trim();
                 }
 
-                if (!state.RunTimeTicks.HasValue)
+                if (supportsGlobalHeaderFlag && !state.RunTimeTicks.HasValue)
                 {
                     args += " -flags -global_header";
                 }