From 170aefeb32513a9f7e2c4c4e8a1a8642de259908 Mon Sep 17 00:00:00 2001
From: Malte Rosenbjerg <rosenbjerg@users.noreply.github.com>
Date: Thu, 27 Feb 2020 18:28:49 +0100
Subject: [PATCH] Support for crf

---
 .../Atoms/ConstantRateFactorArgument.cs       | 41 +++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 FFMpegCore/FFMPEG/Argument/Atoms/ConstantRateFactorArgument.cs

diff --git a/FFMpegCore/FFMPEG/Argument/Atoms/ConstantRateFactorArgument.cs b/FFMpegCore/FFMPEG/Argument/Atoms/ConstantRateFactorArgument.cs
new file mode 100644
index 0000000..a753e78
--- /dev/null
+++ b/FFMpegCore/FFMPEG/Argument/Atoms/ConstantRateFactorArgument.cs
@@ -0,0 +1,41 @@
+using System;
+
+namespace FFMpegCore.FFMPEG.Argument
+{
+    /// <summary>
+    /// Constant Rate Factor (CRF) argument
+    /// </summary>
+    public class ConstantRateFactorArgument : Argument<int>
+    {
+        public ConstantRateFactorArgument(int crf) : base(crf)
+        {
+            if (crf < 0 || crf > 63)
+            {
+                throw new ArgumentException("Argument is outside range (0 - 63)", nameof(crf));
+            }
+        }
+
+        public override string GetStringValue()
+        {
+            return $"-crf {Value} ";
+        }
+    }
+    /// <summary>
+    /// Constant Rate Factor (CRF) argument
+    /// </summary>
+    public class Variable : Argument<int>
+    {
+        public ConstantRateFactorArgument(int crf) : base(crf)
+        {
+            if (crf < 0 || crf > 63)
+            {
+                throw new ArgumentException("Argument is outside range (0 - 63)", nameof(crf));
+            }
+        }
+
+        public override string GetStringValue()
+        {
+            return $"-crf {Value} ";
+        }
+    }
+}
\ No newline at end of file