From 11c74cb65cd936f0fece57357beb7a27741edc24 Mon Sep 17 00:00:00 2001
From: nyanmisaka <nst799610810@gmail.com>
Date: Wed, 11 Nov 2020 19:04:58 +0800
Subject: fix for no audio stream video

---
 MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs | 5 +++++
 1 file changed, 5 insertions(+)

(limited to 'MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs')

diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index e8b4869ee..caf3ef169 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -1518,6 +1518,11 @@ namespace MediaBrowser.Controller.MediaEncoding
         /// <returns>System.Nullable{System.Int32}.</returns>
         public int? GetNumAudioChannelsParam(EncodingJobInfo state, MediaStream audioStream, string outputAudioCodec)
         {
+            if (audioStream == null)
+            {
+                return null;
+            }
+
             var request = state.BaseRequest;
 
             var inputChannels = audioStream?.Channels;
-- 
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