video plugins

sdk-intergration/LocalPackages/LeviathanVideo/Plugins/Core/ConstCharPtrMarshaler.cs

@@ -0,0 +1,33 @@
+/*----------------------------------------------------------------
+// Copyright (C) 2025 Beijing All rights reserved.
+//
+// Author: huachangmiao
+// Create Date: 2025/04/11
+// Module Describe:
+//----------------------------------------------------------------*/
+using System;
+using System.Runtime.InteropServices;
+
+namespace LeviathanVideo.Abstractions
+{
+
+    public class ConstCharPtrMarshaler : ICustomMarshaler
+    {
+        private static readonly ConstCharPtrMarshaler Instance = new ConstCharPtrMarshaler();
+        public object MarshalNativeToManaged(IntPtr pNativeData) => Marshal.PtrToStringAnsi(pNativeData);
+
+        public IntPtr MarshalManagedToNative(object managedObj) => IntPtr.Zero;
+
+        public void CleanUpNativeData(IntPtr pNativeData)
+        {
+        }
+
+        public void CleanUpManagedData(object managedObj)
+        {
+        }
+
+        public int GetNativeDataSize() => IntPtr.Size;
+
+        public static ICustomMarshaler GetInstance(string cookie) => Instance;
+    }
+}