新增 Mjpegplayer 用来播放 Web 流

SHH.CameraSdk/Drivers/HikVision/HikPlayMethods.cs

@@ -1,6 +1,4 @@
-using System;
-using System.Runtime.InteropServices;
-namespace SHH.CameraSdk;
+namespace SHH.CameraSdk;
 
 /// <summary>
 /// 海康播放库 PlayCtrl.dll 的封装
@@ -343,5 +341,11 @@ public static class HikPlayMethods
     [DllImport(DllName)]
     public static extern bool PlayM4_ResetSourceBuffer(int nPort);
 
+    /// <summary>
+    /// [新增] 开启硬件解码
+    /// </summary>
+    [DllImport(DllName)]
+    public static extern bool PlayM4_SetHardWareDecode(int nPort, int nMode);
+
     #endregion
 }