Convert to .NET SDK type csproj

QuickLook.Plugin/QuickLook.Plugin.VideoViewer/Mediakit/DirectShow/Controls/MultimediaUtil.cs

@@ -0,0 +1,95 @@
+using DirectShowLib;
+using System;
+using System.Linq;
+
+namespace WPFMediaKit.DirectShow.Controls;
+
+public class MultimediaUtil
+{
+    #region Audio Renderer Methods
+
+    /// <summary>
+    /// The private cache of the audio renderer names
+    /// </summary>
+    private static string[] m_audioRendererNames;
+
+    /// <summary>
+    /// An array of audio renderer device names
+    /// on the current system
+    /// </summary>
+    public static string[] AudioRendererNames
+    {
+        get
+        {
+            if (m_audioRendererNames == null)
+            {
+                m_audioRendererNames = (from a in GetDevices(FilterCategory.AudioRendererCategory)
+                                        select a.Name).ToArray();
+            }
+            return m_audioRendererNames;
+        }
+    }
+
+    #endregion Audio Renderer Methods
+
+    #region Video Input Devices
+
+    /// <summary>
+    /// The private cache of the video input names
+    /// </summary>
+    private static string[] m_videoInputNames;
+
+    /// <summary>
+    /// An array of video input device names
+    /// on the current system
+    /// </summary>
+    public static string[] VideoInputNames
+    {
+        get
+        {
+            if (m_videoInputNames == null)
+            {
+                m_videoInputNames = (from d in VideoInputDevices
+                                     select d.Name).ToArray();
+            }
+            return m_videoInputNames;
+        }
+    }
+
+    #endregion Video Input Devices
+
+    private static DsDevice[] GetDevices(Guid filterCategory)
+    {
+        return (from d in DsDevice.GetDevicesOfCat(filterCategory)
+                select d).ToArray();
+    }
+
+    public static DsDevice[] VideoInputDevices
+    {
+        get
+        {
+            if (m_videoInputDevices == null)
+            {
+                m_videoInputDevices = GetDevices(FilterCategory.VideoInputDevice);
+            }
+            return m_videoInputDevices;
+        }
+    }
+
+    private static DsDevice[] m_videoInputDevices;
+
+    public static string[] VideoInputsDevicePaths
+    {
+        get
+        {
+            if (m_videoInputsDevicePaths == null)
+            {
+                m_videoInputsDevicePaths = (from d in VideoInputDevices
+                                            select d.DevicePath).ToArray();
+            }
+            return m_videoInputsDevicePaths;
+        }
+    }
+
+    private static string[] m_videoInputsDevicePaths;
+}