/// <summary>
/// Initializes camera.
/// </summary>
/// <param name="sensorLocation">Camera sensor to initialize</param>
private async Task InitializeCamera(CameraSensorLocation sensorLocation)
{
IReadOnlyList<Windows.Foundation.Size> availablePreviewResolutions = PhotoCaptureDevice.GetAvailablePreviewResolutions(sensorLocation);
Windows.Foundation.Size previewResolution = new Windows.Foundation.Size(int.MaxValue, int.MaxValue);
for (int i = 0; i < availablePreviewResolutions.Count; i++)
{
double ratio = availablePreviewResolutions[i].Width / availablePreviewResolutions[i].Height;
if (ratio > 1.32 && ratio < 1.34 && PerfectCamera.DataContext.Instance.CameraRatio == CameraRatio.Ratio_4x3)
{
if (previewResolution.Width > availablePreviewResolutions[i].Width)
{
previewResolution = availablePreviewResolutions[i];
}
}
else if (ratio > 1.7 && ratio < 1.8 && PerfectCamera.DataContext.Instance.CameraRatio == CameraRatio.Ratio_16x9)
{
if (previewResolution.Width > availablePreviewResolutions[i].Width)
{
previewResolution = availablePreviewResolutions[i];
}
}
}
PerfectCamera.DataContext.Instance.PreviewResolution = previewResolution;
IReadOnlyList<Windows.Foundation.Size> availableResolutions = PhotoCaptureDevice.GetAvailableCaptureResolutions(sensorLocation);
//find 4:3 (2048 x 1536) or 16:9 (1280x720)
Windows.Foundation.Size captureResolution = new Windows.Foundation.Size(0, 0);
for (int i = 0; i < availableResolutions.Count; i++)
{
double ratio = availableResolutions[i].Width / availableResolutions[i].Height;
if (ratio > 1.32 && ratio < 1.34 && PerfectCamera.DataContext.Instance.CameraRatio == CameraRatio.Ratio_4x3)
{
if (captureResolution.Width < availableResolutions[i].Width)
{
captureResolution = availableResolutions[i];
}
}
else if (ratio > 1.7 && ratio < 1.8 && PerfectCamera.DataContext.Instance.CameraRatio == CameraRatio.Ratio_16x9)
{
if (captureResolution.Width < availableResolutions[i].Width)
{
captureResolution = availableResolutions[i];
}
}
}
//
PhotoCaptureDevice device = await PhotoCaptureDevice.OpenAsync(sensorLocation, captureResolution);
await device.SetPreviewResolutionAsync(previewResolution);
await device.SetCaptureResolutionAsync(captureResolution);
Camera = device;
if (PerfectCamera.DataContext.Instance.CameraType == PerfectCameraType.Selfie)
{
_cameraEffect = new Effects()
{
PhotoCaptureDevice = Camera
};
_cameraStreamSource = new CameraStreamSource(_cameraEffect, previewResolution);
}
if (Camera != null)
{
if (Camera.SensorLocation == CameraSensorLocation.Front)
{
FlashButton.IsHitTestVisible = false;
FlashButton.Opacity = 0.5;
}
else
{
FlashButton.IsHitTestVisible = true;
FlashButton.Opacity = 1.0;
}
}
SetOrientation(this.Orientation);
}
private void Uninitialize()
{
if (_mediaElement != null)
{
_mediaElement.Source = null;
_mediaElement = null;
}
if (_cameraStreamSource != null)
{
_cameraStreamSource = null;
}
_cameraEffect = null;
}
