From bfd2f4a908dfc398e5a6fa0d37513cea5dc41c7e Mon Sep 17 00:00:00 2001
From: Jonas Kamsker <git.jonas@kamsker.at>
Date: Tue, 11 Jan 2022 22:46:33 +0100
Subject: [PATCH] Fixed possible nullreference

---
 FFMpegCore/FFMpeg/Arguments/MetaDataArgument.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/FFMpegCore/FFMpeg/Arguments/MetaDataArgument.cs b/FFMpegCore/FFMpeg/Arguments/MetaDataArgument.cs
index c34257e..6e9f77f 100644
--- a/FFMpegCore/FFMpeg/Arguments/MetaDataArgument.cs
+++ b/FFMpegCore/FFMpeg/Arguments/MetaDataArgument.cs
@@ -30,7 +30,7 @@ public MetaDataArgument(string metaDataContent)
 
         public string GetText(StringBuilder context)
         {
-            var index = context.ToString().CountOccurrences("-i");
+            var index = context?.ToString().CountOccurrences("-i") ?? 0;
 
             return $"-i \"{_tempFileName}\" -map_metadata {index}";
         }