From 0539fdc5e3a164b694d12d8d3f8437e2cc5b6457 Mon Sep 17 00:00:00 2001
From: gnattu <gnattu@users.noreply.github.com>
Date: Mon, 23 Sep 2024 23:09:08 +0800
Subject: [PATCH] Fix libx264/libx265 auto preset (#12692)

---
 MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs | 8 +++++++-
 1 file changed, 7 insertions(+), 1 deletion(-)

diff --git a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
index b05d2ffb7b..557eb5e329 100644
--- a/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
+++ b/MediaBrowser.Controller/MediaEncoding/EncodingHelper.cs
@@ -1444,7 +1444,13 @@ namespace MediaBrowser.Controller.MediaEncoding
             var encoderPreset = preset ?? defaultPreset;
             if (string.Equals(videoEncoder, "libx264", StringComparison.OrdinalIgnoreCase) || isLibX265)
             {
-                param += " -preset " + encoderPreset.ToString().ToLowerInvariant();
+                var presetString = encoderPreset switch
+                {
+                    EncoderPreset.auto => EncoderPreset.veryfast.ToString().ToLowerInvariant(),
+                    _ => encoderPreset.ToString().ToLowerInvariant()
+                };
+
+                param += " -preset " + presetString;
 
                 int encodeCrf = encodingOptions.H264Crf;
                 if (isLibX265)