private void PopulateVideoDeviceProperties(MediaStreamType streamType, ComboBox comboBox, bool showFrameRate = true)
{
// query all properties of the specified video stream type
IEnumerable <StreamPropertiesHelper> allStreamProperties =
mediaCapture.VideoDeviceController.GetAvailableMediaStreamProperties(streamType)
.Select(x => new StreamPropertiesHelper(x));
// order them by resolution then frame rate
allStreamProperties = allStreamProperties
.OrderByDescending(x => x.Height * x.Width)
.ThenByDescending(x => x.FrameRate);
// populate the combo box with the entries
foreach (var property in allStreamProperties)
{
var comboBoxItem = new ComboBoxItem();
comboBoxItem.Content = property.GetFriendlyName(showFrameRate);
comboBoxItem.Tag = property;
comboBox.Items.Add(comboBoxItem);
}
var settings = AppSettingsContainer.GetCachedSettings();
comboBox.SelectedItem = WebcamComboBox.Items.Where(x => (x as ComboBoxItem).Content.ToString() == settings.WebcamQuality).FirstOrDefault();
}
private AppSettings GetCurrentSettings()
{
try
{
var quality = AppSettingsContainer.ParseEnumValue <VideoEncodingQuality>((string)QualityComboBox.SelectedItem);
var frameRate = uint.Parse(((string)FrameRateComboBox.SelectedItem).Replace("fps", ""));
var useSourceSize = UseCaptureItemSizeCheckBox.IsChecked.Value;
var adaptBitrate = AdaptBitrateCheckBox.IsChecked.Value;
var webcamQuality = (WebcamComboBox.SelectedItem as ComboBoxItem).Content.ToString();
return(new AppSettings
{
Quality = quality,
FrameRate = frameRate,
UseSourceSize = useSourceSize,
AudioDeviceId = (AudioDeviceComboBox.SelectedItem as ComboBoxItem).Tag.ToString(),
WebcamDeviceId = (WebcamDeviceComboBox.SelectedItem as ComboBoxItem).Tag.ToString(),
WebcamQuality = webcamQuality,
AdaptBitrate = adaptBitrate,
StorageFolder = storageFolder.Path,
WebcamExposure = (long)ExposureSlider.Value,
WebcamWhiteBalance = (uint)WbSlider.Value,
WebcamExposureAuto = ExposureAutoCheckBox.IsChecked.HasValue ? ExposureAutoCheckBox.IsChecked.Value : true,
WebcamWhiteBalanceAuto = WbAutoCheckBox.IsChecked.HasValue ? WbAutoCheckBox.IsChecked.Value : true
});
}
catch
{
return(new AppSettings());
}
}
private async Task LoadSettings()
{
var settings = AppSettingsContainer.GetCachedSettings();
// load quality settings
var names = new List <string>
{
nameof(VideoEncodingQuality.HD1080p),
nameof(VideoEncodingQuality.HD720p),
nameof(VideoEncodingQuality.Uhd2160p)
};
QualityComboBox.ItemsSource = names;
QualityComboBox.SelectedIndex = names.IndexOf(settings.Quality.ToString());
var frameRates = new List <string> {
"15fps", "30fps", "60fps"
};
FrameRateComboBox.ItemsSource = frameRates;
FrameRateComboBox.SelectedIndex = frameRates.IndexOf($"{settings.FrameRate}fps");
UseCaptureItemSizeCheckBox.IsChecked = settings.UseSourceSize;
AdaptBitrateCheckBox.IsChecked = settings.AdaptBitrate;
// load default storage path
if (!string.IsNullOrEmpty(settings.StorageFolder))
{
try
{
storageFolder = await StorageFolder.GetFolderFromPathAsync(settings.StorageFolder);
FolderName.Text = settings.StorageFolder;
}
catch
{
var dialog = new MessageDialog(
"Previous storage directory does not exist anymore. Please select a new directory.",
"Directory not found or not enough permissions");
await dialog.ShowAsync();
}
}
// set first webcam device
WebcamDeviceComboBox.SelectedItem = WebcamDeviceComboBox.Items.Where(x => (x as ComboBoxItem).Tag.ToString() == settings.WebcamDeviceId).FirstOrDefault();
AudioDeviceComboBox.SelectedItem = AudioDeviceComboBox.Items.Where(x => (x as ComboBoxItem).Tag.ToString() == settings.AudioDeviceId).FirstOrDefault();
}
private async void WebcamComboBox_SelectionChanged(object sender, SelectionChangedEventArgs e)
{
try
{
var selectedItem = (sender as ComboBox).SelectedItem as ComboBoxItem;
if (selectedItem == null)
{
return;
}
var encodingProperties = (selectedItem.Tag as StreamPropertiesHelper).EncodingProperties;
await mediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.VideoRecord, encodingProperties);
SetExposureControls();
SetWhiteBalanceControl();
// load settings
var settings = AppSettingsContainer.GetCachedSettings();
if (ExposureAutoCheckBox.Visibility == Visibility.Visible && ExposureSlider.Visibility == Visibility.Visible)
{
ExposureSlider.Value = settings.WebcamExposure;
ExposureAutoCheckBox.IsChecked = settings.WebcamExposureAuto;
}
if (WbSlider.Visibility == Visibility.Visible)
{
WbSlider.Value = settings.WebcamWhiteBalance;
}
if (WbAutoCheckBox.Visibility == Visibility.Visible)
{
WbAutoCheckBox.IsChecked = settings.WebcamWhiteBalanceAuto;
}
}
catch (Exception ex)
{
var msg = new MessageDialog("The device is not ready.");
await msg.ShowAsync();
}
}
public void CacheCurrentSettings()
{
var settings = GetCurrentSettings();
AppSettingsContainer.CacheSettings(settings);
}
