// AnyChat内核回调
 public static void VideoData_CallBack(int userId, IntPtr buf, int len, AnyChatCoreSDK.BITMAPINFOHEADER bitMap, int userValue)
 {
     if (VideoDataHandler != null)
         VideoDataHandler(userId, buf, len, bitMap, userValue);
 }
        // 静态委托
        public void VideoDataCallbackDelegate(int userId, IntPtr buf, int len, AnyChatCoreSDK.BITMAPINFOHEADER bitMap, int userValue)
        {
            int stride = bitMap.biWidth * 3;
            BitmapSource bs = BitmapSource.Create(bitMap.biWidth, bitMap.biHeight, 96, 96, PixelFormats.Bgr24, null, buf, len, stride);
            // 将图像进行翻转
            TransformedBitmap RotateBitmap = new TransformedBitmap();
            RotateBitmap.BeginInit();
            RotateBitmap.Source = bs;
            RotateBitmap.Transform = new RotateTransform(180);
            RotateBitmap.EndInit();
            RotateBitmap.Freeze();

            // 异步操作
            Action action = new Action(delegate()
            {
                Dispatcher.BeginInvoke(new Action(delegate()
                {
                    if (userId == g_selfUserId)
                        localVideoImage.Source = RotateBitmap;
                    else if (userId == g_otherUserId)
                        remoteVideoImage.Source = RotateBitmap;
                }), null);
            });
            action.BeginInvoke(null, null);
        }