Use enums for encoding options (#12561)

MediaBrowser.Model/Entities/HardwareAccelerationType.cs

@@ -0,0 +1,49 @@
+#pragma warning disable SA1300 // Lowercase required for backwards compat.
+
+namespace MediaBrowser.Model.Entities;
+
+/// <summary>
+/// Enum containing hardware acceleration types.
+/// </summary>
+public enum HardwareAccelerationType
+{
+    /// <summary>
+    /// Software accelleration.
+    /// </summary>
+    none = 0,
+
+    /// <summary>
+    /// AMD AMF.
+    /// </summary>
+    amf = 1,
+
+    /// <summary>
+    /// Intel Quick Sync Video.
+    /// </summary>
+    qsv = 2,
+
+    /// <summary>
+    /// NVIDIA NVENC.
+    /// </summary>
+    nvenc = 3,
+
+    /// <summary>
+    /// Video4Linux2 V4L2M2M.
+    /// </summary>
+    v4l2m2m = 4,
+
+    /// <summary>
+    /// Video Acceleration API (VAAPI).
+    /// </summary>
+    vaapi = 5,
+
+    /// <summary>
+    /// Video ToolBox.
+    /// </summary>
+    videotoolbox = 6,
+
+    /// <summary>
+    /// Rockchip Media Process Platform (RKMPP).
+    /// </summary>
+    rkmpp = 7
+}