private async Task SelectFallbackSourceGroupAsync()
{
#if USE_INFRARED
var devices = await DeviceInformation.FindAllAsync(MediaFrameSourceGroup.GetDeviceSelector());
foreach (var deviceInformation in devices)
{
var sourceGroup = await MediaFrameSourceGroup.FromIdAsync(deviceInformation.Id);
var colorSourceInfos = sourceGroup.SourceInfos.Where(sourceInfo => sourceInfo.SourceKind == MediaFrameSourceKind.Color);
var enclosureLocation = colorSourceInfos.Select(sourceInfo => sourceInfo?.DeviceInformation?.EnclosureLocation).FirstOrDefault(enclosure => enclosure != null);
if (colorSourceInfos.Any() &&
enclosureLocation.Panel == InfraredEnclosureLocation.Panel)
{
FallbackSourceGroup = sourceGroup;
ExclusiveRgbSourceInfo = colorSourceInfos.OrderByDescending(sourceInfo => sourceInfo?.MediaStreamType == ExclusiveIrSourceInfo.MediaStreamType).First();
ColorEnclosureLocation = enclosureLocation;
break;
}
}
#else
SharedSourceInfo = ExclusiveRgbSourceInfo;
SharedSourceGroup = ExclusiveSourceGroup;
#endif
}
/// <summary>
/// Adds a SourceGroup with given Id to the collection.
/// </summary>
private async Task AddDeviceAsync(string id)
{
var group = await MediaFrameSourceGroup.FromIdAsync(id);
if (group != null)
{
await _dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
_sourceCollection.Add(new FrameSourceGroupModel(group));
});
}
}
private async Task _AddAcceptableSourceGroupAsync(string deviceId)
{
// Accept any user facing IR camera
var sourceGroup = await MediaFrameSourceGroup.FromIdAsync(deviceId);
if (sourceGroup != null && (sourceGroup.SourceInfos.Count > 1) &&
sourceGroup.SourceInfos.Any(source =>
source.SourceKind == MediaFrameSourceKind.Infrared))
{
if (sourceGroup.SourceInfos.Any(source =>
source.SourceKind == MediaFrameSourceKind.Color))
{
_sourceGroups[deviceId] = sourceGroup;
if (!_isOpened)
{
_displayAutoEvent.Set();
_isOpened = true;
}
}
}
}
private async Task InitializeCameraAsync()
{
if (_mediaCapture == null)
{
_mediaCapture = new MediaCapture();
}
if (_allVideoDevices == null)
{
return;
}
if (_allVideoDevices.Count == 0)
{
Debug.WriteLine("ERROR: no webcam found or available");
return;
}
Object storedVideoDeviceId = _localSettings.Values["CurrentVideoDeviceId"];
if (storedVideoDeviceId == null)
{
storedVideoDeviceId = _allVideoDevices[0].Id;
_localSettings.Values["CurrentVideoDeviceId"] = storedVideoDeviceId;
CameraComboBox.SelectedIndex = 0;
Debug.WriteLine("INFO: no webcam configured. Choosing the first available: " + _allVideoDevices[0].Name);
}
else
{
Debug.WriteLine("Loaded from Settings - CurrentVideoDeviceId: " + storedVideoDeviceId.ToString());
}
var mediaFrameSourceGroup = await MediaFrameSourceGroup.FromIdAsync(storedVideoDeviceId.ToString());
MediaFrameSourceInfo selectedMediaFrameSourceInfo = null;
foreach (MediaFrameSourceInfo sourceInfo in mediaFrameSourceGroup.SourceInfos)
{
if (sourceInfo.MediaStreamType == MediaStreamType.VideoRecord)
{
selectedMediaFrameSourceInfo = sourceInfo;
break;
}
}
if (selectedMediaFrameSourceInfo == null)
{
Debug.WriteLine("no compatible MediaSource found.");
return;
}
MediaCaptureInitializationSettings mediaSettings = new MediaCaptureInitializationSettings();
mediaSettings.VideoDeviceId = storedVideoDeviceId.ToString();
mediaSettings.SourceGroup = mediaFrameSourceGroup;
mediaSettings.StreamingCaptureMode = StreamingCaptureMode.Video;
mediaSettings.SharingMode = MediaCaptureSharingMode.ExclusiveControl;
mediaSettings.MemoryPreference = MediaCaptureMemoryPreference.Cpu;
try
{
await _mediaCapture.InitializeAsync(mediaSettings);
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine("MediaCapture initialization failed: " + ex.Message);
return;
}
Debug.WriteLine("MediaFrameCapture initialized");
var mediaFrameSource = _mediaCapture.FrameSources[selectedMediaFrameSourceInfo.Id];
imageElement.Source = new SoftwareBitmapSource();
MediaRatio mediaRatio = mediaFrameSource.CurrentFormat.VideoFormat.MediaFrameFormat.FrameRate;
_sourceFrameRate = (double)mediaRatio.Numerator / (double)mediaRatio.Denominator;
CalculateFrameRate();
_mediaFrameReader = await _mediaCapture.CreateFrameReaderAsync(mediaFrameSource, MediaEncodingSubtypes.Argb32);
_mediaFrameReader.AcquisitionMode = MediaFrameReaderAcquisitionMode.Realtime;
_mediaFrameReader.FrameArrived += ColorFrameReader_FrameArrivedAsync;
await _mediaFrameReader.StartAsync();
Debug.WriteLine("MediaFrameReader StartAsync done ");
_isInitialized = true;
UpdateCaptureControls();
}
private async Task MJPEGStreamerInitAsync()
{
Debug.WriteLine("Trying MJPEGStreamerInitAsync");
if (_mjpegStreamerInitialized || _mjpegStreamerIsInitializing)
{
return;
}
_mjpegStreamerInitialized = true;
_mjpegStreamerIsInitializing = true;
if (_mediaCapture == null)
{
_mediaCapture = new MediaCapture();
}
Debug.WriteLine("MJPEGStreamerInitAsync: now reading settings");
var portSetting = _localSettings.Values["HttpServerPort"];
if (portSetting != null)
{
TextBoxPort.Text = validatePortNumber(portSetting.ToString()).ToString();
_httpServerPort = (int)portSetting;
}
else
{
TextBoxPort.Text = _defaultPort.ToString();
_httpServerPort = _defaultPort;
}
var videoRotationInt = _localSettings.Values["VideoRotation"];
if (videoRotationInt != null)
{
_videoRotation = (int)videoRotationInt;
}
var imageQualitySingle = _localSettings.Values["ImageQuality"];
if (imageQualitySingle != null)
{
_imageQuality = (double)imageQualitySingle;
}
else
{
_imageQuality = (double)0.3;
}
ImageQualitySlider.Value = _imageQuality * 100;
var frameRate = _localSettings.Values["FrameRate"];
if (frameRate != null)
{
_frameRate = (int)frameRate;
}
else
{
_frameRate = (int)5;
}
FrameRateSlider.Value = _frameRate;
var preview = _localSettings.Values["Preview"];
if (preview != null)
{
Debug.WriteLine("preview setting found: " + (bool)preview);
_previewVideoEnabled = (bool)preview;
}
else
{
Debug.WriteLine("no Preview setting found, setting to default ON.");
_previewVideoEnabled = true;
}
PreviewToggleSwitch.IsOn = _previewVideoEnabled;
UpdatePreviewState();
_allVideoDevices = await DeviceInformation.FindAllAsync(DeviceClass.VideoCapture);
var id = _localSettings.Values["CurrentVideoDeviceId"];
if (id == null)
{
id = "********no setting*****";
}
Debug.WriteLine("_allVideoDevices read");
_currentVideoDeviceIndex = -1;
int count = 0;
CameraComboBox.Items.Clear();
foreach (DeviceInformation di in _allVideoDevices)
{
CameraComboBox.Items.Add(di.Name);
if (di.Id.Equals(id.ToString(), StringComparison.OrdinalIgnoreCase))
{
_currentVideoDeviceIndex = count;
CameraComboBox.SelectedIndex = count;
Debug.WriteLine("CAMERA INDEX FOUND");
}
count++;
Debug.WriteLine("Video Device: {0} ID:{1}", di.Name, di.Id);
var mediaFrameSourceGroup = await MediaFrameSourceGroup.FromIdAsync(di.Id);
foreach (var si in mediaFrameSourceGroup.SourceInfos)
{
Debug.WriteLine(" " + si.MediaStreamType.ToString() + " " + si.SourceKind.ToString());
}
}
await StartServer();
_mjpegStreamerIsInitializing = false;
}
private async Task SelectExclusiveSourceGroupAsync()
{
#if USE_INFRARED
var devices = await DeviceInformation.FindAllAsync(MediaFrameSourceGroup.GetDeviceSelector());
foreach (var deviceInformation in devices)
{
var sourceGroup = await MediaFrameSourceGroup.FromIdAsync(deviceInformation.Id);
var current = new DefaultDictionary <MediaFrameSourceKind, Dictionary <MediaStreamType, MediaFrameSourceInfo> >();
ulong currentIrCapability = 0u;
foreach (var sourceInfo in sourceGroup.SourceInfos)
{
var originSourceGroupId = sourceInfo.Id.Split('@').ElementAtOrDefault(1) ?? sourceInfo.Id;
EnclosureLocations[originSourceGroupId] = EnclosureLocations[originSourceGroupId] ?? deviceInformation.EnclosureLocation;
if (sourceInfo.MediaStreamType != MediaStreamType.VideoPreview &&
sourceInfo.MediaStreamType != MediaStreamType.VideoRecord)
{
continue;
}
switch (sourceInfo.SourceKind)
{
case MediaFrameSourceKind.Color:
current[sourceInfo.SourceKind][sourceInfo.MediaStreamType] = sourceInfo;
break;
case MediaFrameSourceKind.Infrared:
if (sourceInfo.Properties.TryGetValue(MF._DEVICESTREAM_ATTRIBUTE_FACEAUTH_CAPABILITY, out var capability))
{
if (capability is ulong ulCapability &&
(ulCapability & (
KS.CAMERA_EXTENDEDPROP_FACEAUTH_MODE_ALTERNATIVE_FRAME_ILLUMINATION |
KS.CAMERA_EXTENDEDPROP_FACEAUTH_MODE_BACKGROUND_SUBTRACTION)) != 0)
{
currentIrCapability = ulCapability;
current[sourceInfo.SourceKind][sourceInfo.MediaStreamType] = sourceInfo;
}
}
break;
}
}
if (current[MediaFrameSourceKind.Infrared].Any())
{
var score = GetSourceGroupScore(current);
if (score <= ExclusiveSourceGroupScore)
{
continue;
}
var preferredMediaStreamType = current[MediaFrameSourceKind.Infrared].Keys
.Intersect(current[MediaFrameSourceKind.Color].Keys)
.DefaultIfEmpty(MediaStreamType.VideoPreview)
.OrderByDescending(mediaStreamType => mediaStreamType == MediaStreamType.VideoPreview)
.First();
ExclusiveIrSourceInfo = current[MediaFrameSourceKind.Infrared].OrderByDescending(kvp => kvp.Key == preferredMediaStreamType).First().Value;
ExclusiveRgbSourceInfo = current[MediaFrameSourceKind.Color].OrderByDescending(kvp => kvp.Key == ExclusiveIrSourceInfo.MediaStreamType).Select(kvp => kvp.Value).FirstOrDefault();
ExclusiveSourceGroup = sourceGroup;
ExclusiveIrCapability = currentIrCapability;
ExclusiveSourceGroupScore = score;
if ((ExclusiveRgbSourceInfo != null) &&
deviceInformation.EnclosureLocation != null)
{
break;
}
}
}
if (ExclusiveIrSourceInfo != null)
{
EnclosureLocations.TryGetValue(ExclusiveIrSourceInfo.Id.Split('@').ElementAtOrDefault(1) ?? ExclusiveIrSourceInfo.Id, out InfraredEnclosureLocation);
}
if (ExclusiveRgbSourceInfo != null)
{
EnclosureLocations.TryGetValue(ExclusiveRgbSourceInfo.Id.Split('@').ElementAtOrDefault(1) ?? ExclusiveRgbSourceInfo.Id, out ColorEnclosureLocation);
}
#else
var sourceGroups = await MediaFrameSourceGroup.FindAllAsync();
if (sourceGroups.Any() && sourceGroups.First() is MediaFrameSourceGroup sourceGroup)
{
ExclusiveRgbSourceInfo = sourceGroup.SourceInfos.OrderByDescending(si => si.MediaStreamType == MediaStreamType.VideoPreview).First();
ExclusiveSourceGroup = sourceGroup;
}
#endif
if (ExclusiveRgbSourceInfo == null)
{
UseFallbackSourceGroup = true;
}
}
