Windows phone 8 如何在Windows Phone 8中使用新的摄像头API进行视频录制

关于使用适用于Windows Phone 8的新摄像头API捕获、保存和播放视频，是否有一个好的示例可供我参考。我已经找到了很多关于捕获和保存图片的信息，但是我希望能够对视频做同样的事情

我有一个开始，但执行录制、保存和播放是我遇到的难题

videoCaptureDevice = await AudioVideoCaptureDevice.OpenAsync(CameraSensorLocation.Back, AudioVideoCaptureDevice.GetAvailableCaptureResolutions(CameraSensorLocation.Back).First()); 


        // Initialize the camera if it exists on the device.
        try
        {
            if (videoCaptureDevice != null)
            {
                //// Create the VideoBrush for the viewfinder.
                videoRecorderBrush = new VideoBrush();
                videoRecorderBrush.SetSource(videoCaptureDevice);

                //// Display the viewfinder image on the rectangle.
                viewfinderRectangle.Fill = videoRecorderBrush;

                // Set the button state and the message.
                UpdateUI(ButtonState.Initialized, "Tap to start recording...");
            }
            else
            {
                // Disable buttons when the camera is not supported by the device.
                UpdateUI(ButtonState.CameraNotSupported, "A camera is not supported on this device.");
            }
        }
        catch(Exception ex)
        {
            MessageBox.Show("exception "+ex);
        }

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这个？这是使用7.1 API的。对于API，我的要求是使用AudioVideoCaptureDevice类。我很难找到参考资料和一些示例，我可以将它们放在一起创建一个可用的应用程序。请检查此链接：