From a77a1eb3b70786b2d52ff0edb4dc2a2ac848a8cf Mon Sep 17 00:00:00 2001
From: N00MKRAD <login@nmkd.de>
Date: Tue, 4 May 2021 09:03:20 +0200
Subject: [PATCH] Lossless h265 is now actually lossless

---
 Code/Media/FFmpegUtils.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/Code/Media/FFmpegUtils.cs b/Code/Media/FFmpegUtils.cs
index 6e820fd..59f63a1 100644
--- a/Code/Media/FFmpegUtils.cs
+++ b/Code/Media/FFmpegUtils.cs
@@ -63,7 +63,8 @@ namespace Flowframes.Media
             if (codec == Codec.H265)
             {
                 string preset = Config.Get("ffEncPreset").ToLower().Remove(" ");
-                args += $"-crf {Config.GetInt("h265Crf")} -preset {preset} -pix_fmt yuv420p";
+                int crf = Config.GetInt("h265Crf");
+                args += $"-crf {(crf > 0 ? crf.ToString() : "-x265-params lossless=1")} -preset {preset} -pix_fmt yuv420p";
             }
 
             if (codec == Codec.H264NVENC)