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
}
public void Initialize()
{
string fsselector = MediaFrameSourceGroup.GetDeviceSelector();
// string dis = MediaFrameSourceGroup.GetDeviceSelector().
_watcher = DeviceInformation.CreateWatcher(fsselector);
_watcher.Added += async(sender, devInfo) =>
{
await _AddAcceptableSourceGroupAsync(devInfo.Id);
Debug.WriteLine("Watcher Added " + devInfo.Name);
};
_watcher.Removed += (sender, devInfo) =>
{
_sourceGroups.Remove(devInfo.Id);
};
_watcher.Updated += async(sender, devInfo) =>
{
_sourceGroups.Remove(devInfo.Id);
await _AddAcceptableSourceGroupAsync(devInfo.Id);
};
_watcher.EnumerationCompleted += (sender, sourceGroup) =>
{
// Update UI.
};
_watcher.Start();
}
public SourceGroupCollection(CoreDispatcher uiDispatcher)
{
_dispatcher = uiDispatcher;
_sourceCollection = new ObservableCollection <FrameSourceGroupModel>();
var deviceSelector = MediaFrameSourceGroup.GetDeviceSelector();
_watcher = DeviceInformation.CreateWatcher(deviceSelector);
_watcher.Added += Watcher_Added;
_watcher.Removed += Watcher_Removed;
_watcher.Updated += Watcher_Updated;
_watcher.Start();
}
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;
}
}
private static async Task <Tuple <MediaFrameSourceGroup, MediaFrameSourceInfo> > EnumFrameSourcesAsync()
{
MediaFrameSourceInfo result_info = null;
MediaFrameSourceGroup result_group = null;
var sourcegroups = await AsyncHelper.AsAsync(MediaFrameSourceGroup.FindAllAsync());
Log.WriteLine("found {0} Source Groups", sourcegroups.Count);
if (sourcegroups.Count == 0)
{
var dinfos = await AsyncHelper.AsAsync(DeviceInformation.FindAllAsync(MediaFrameSourceGroup.GetDeviceSelector()));
Log.WriteLine("found {0} devices from MediaFrameSourceGroup selector", dinfos.Count);
foreach (var info in dinfos)
{
Log.WriteLine(info.Name);
}
if (dinfos.Count == 0)
{
dinfos = await AsyncHelper.AsAsync(DeviceInformation.FindAllAsync(DeviceClass.VideoCapture));
Log.WriteLine("found {0} devices from Video Capture DeviceClass", dinfos.Count);
foreach (var info in dinfos)
{
Log.WriteLine(info.Name);
}
}
}
foreach (var g in sourcegroups)
{
var sourceinfos = g.SourceInfos;
Log.WriteLine("Source Group {0}", g.Id);
Log.WriteLine(" {0}", g.DisplayName);
Log.WriteLine(" with {0} Sources:", sourceinfos.Count);
foreach (var s in sourceinfos)
{
var d = s.DeviceInformation;
Log.WriteLine("\t{0}", s.Id);
Log.WriteLine("\t\tKind {0}", s.SourceKind);
Log.WriteLine("\t\tDevice {0}", d.Id);
Log.WriteLine("\t\t {0}", d.Name);
Log.WriteLine("\t\t Kind {0}", d.Kind);
if (result_info == null)
{
result_info = s; // for now just pick the first thing we find
}
}
Log.EndLine();
if (result_group == null)
{
result_group = g; // for now just pick the first thing we find
}
}
return(new Tuple <MediaFrameSourceGroup, MediaFrameSourceInfo>(result_group, result_info));
}