From 001453714ab9d05051899122482b04d8f7869e8a Mon Sep 17 00:00:00 2001
From: Jason Dove <jason@jasondove.me>
Date: Sun, 28 Mar 2021 18:21:26 -0500
Subject: [PATCH] fix playback on channel with no preferred language

---
 ErsatzTV.Core/FFmpeg/FFmpegStreamSelector.cs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/ErsatzTV.Core/FFmpeg/FFmpegStreamSelector.cs b/ErsatzTV.Core/FFmpeg/FFmpegStreamSelector.cs
index a5e9c347f..8e680ffac 100644
--- a/ErsatzTV.Core/FFmpeg/FFmpegStreamSelector.cs
+++ b/ErsatzTV.Core/FFmpeg/FFmpegStreamSelector.cs
@@ -29,7 +29,7 @@ namespace ErsatzTV.Core.FFmpeg
         {
             var audioStreams = version.Streams.Filter(s => s.MediaStreamKind == MediaStreamKind.Audio).ToList();
 
-            string language = channel.PreferredLanguageCode.ToLowerInvariant();
+            string language = (channel.PreferredLanguageCode ?? string.Empty).ToLowerInvariant();
             if (string.IsNullOrWhiteSpace(language))
             {
                 _logger.LogDebug("Channel {Number} has no preferred language code", channel.Number);