Tutorial for LinphoneSDK x UWP - C#

uwp/cs/05_FileTransfer/Service/VideoService.cs

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+/*
+ * Copyright (c) 2010-2020 Belledonne Communications SARL.
+ *
+ * This file is part of Linphone TutorialCS.
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+using Windows.UI.Xaml.Controls;
+
+namespace _05_FileTransfer.Service
+{
+	internal class VideoService
+	{
+		private static readonly VideoService instance = new VideoService();
+
+		public static VideoService Instance
+		{
+			get
+			{
+				return instance;
+			}
+		}
+
+		private CoreService CoreService { get; } = CoreService.Instance;
+
+		public void StartVideoStream(SwapChainPanel main, SwapChainPanel preview)
+		{
+			CoreService.Core.NativePreviewWindowId = preview;
+			CoreService.Core.NativeVideoWindowId = main;
+		}
+
+		public void StopVideoStream()
+		{
+			CoreService.Core.NativePreviewWindowId = null;
+			CoreService.Core.NativeVideoWindowId = null;
+		}
+	}
+}