/// <summary>
/// Stop the media frame source groups.
/// </summary>
/// <returns></returns>
async Task StopHoloLensMediaFrameSourceGroup()
{
#if ENABLE_WINMD_SUPPORT
if (!_mediaFrameSourceGroupsStarted ||
_pvMediaFrameSourceGroup == null ||
_shortDepthMediaFrameSourceGroup == null)
{
return;
}
// Wait for frame source groups to stop.
await _pvMediaFrameSourceGroup.StopAsync();
_pvMediaFrameSourceGroup = null;
await _shortDepthMediaFrameSourceGroup.StopAsync();
_shortDepthMediaFrameSourceGroup = null;
// Set to null value
_sensorFrameStreamerPv = null;
_sensorFrameStreamerResearch = null;
// Bool to indicate closing
_mediaFrameSourceGroupsStarted = false;
myText.text = "Stopped streaming sensor frames. Okay to exit app.";
#endif
}
async Task StartHoloLensMediaFrameSourceGroups()
{
#if ENABLE_WINMD_SUPPORT
// Plugin doesn't work in the Unity editor
myText.text = "Initializing MediaFrameSourceGroups...";
// PV
Debug.Log("HoloLensForCVUnity.ArUcoDetection.StartHoloLensMediaFrameSourceGroup: Setting up sensor frame streamer");
_sensorType = (SensorType)sensorTypePv;
_sensorFrameStreamerPv = new SensorFrameStreamer();
_sensorFrameStreamerPv.Enable(_sensorType);
// Spatial perception
Debug.Log("HoloLensForCVUnity.ArUcoDetection.StartHoloLensMediaFrameSourceGroup: Setting up spatial perception");
_spatialPerception = new SpatialPerception();
// Enable media frame source groups
// PV
Debug.Log("HoloLensForCVUnity.ArUcoDetection.StartHoloLensMediaFrameSourceGroup: Setting up the media frame source group");
_pvMediaFrameSourceGroup = new MediaFrameSourceGroup(
MediaFrameSourceGroupType.PhotoVideoCamera,
_spatialPerception,
_sensorFrameStreamerPv);
_pvMediaFrameSourceGroup.Enable(_sensorType);
// Start media frame source groups
myText.text = "Starting MediaFrameSourceGroups...";
// Photo video
Debug.Log("HoloLensForCVUnity.ArUcoDetection.StartHoloLensMediaFrameSourceGroup: Starting the media frame source group");
await _pvMediaFrameSourceGroup.StartAsync();
_mediaFrameSourceGroupsStarted = true;
myText.text = "MediaFrameSourceGroups started...";
// Initialize the Unity coordinate system
// Get pointer to Unity's spatial coordinate system
// https://github.com/qian256/HoloLensARToolKit/blob/master/ARToolKitUWP-Unity/Scripts/ARUWPVideo.cs
try
{
_unityCoordinateSystem = Marshal.GetObjectForIUnknown(WorldManager.GetNativeISpatialCoordinateSystemPtr()) as SpatialCoordinateSystem;
}
catch (Exception)
{
Debug.Log("ArUcoDetectionHoloLensUnity.ArUcoMarkerDetection: Could not get pointer to Unity spatial coordinate system.");
throw;
}
// Initialize the aruco marker detector with parameters
_arUcoMarkerTracker = new ArUcoMarkerTracker(
markerSize,
(int)arUcoDictionaryName,
_unityCoordinateSystem);
#endif
}
async Task StartHoloLensMediaFrameSourceGroups()
{
#if ENABLE_WINMD_SUPPORT
// Plugin doesn't work in the Unity editor
myText.text = "Initalizing MediaFrameSourceGroups...";
// PV
_sensorFrameStreamerPv = new SensorFrameStreamer();
_sensorType = (SensorType)sensorTypePv;
_sensorFrameStreamerPv.Enable(_sensorType);
// Research streams
_sensorFrameStreamerResearch = new SensorFrameStreamer();
_sensorTypeResearch = (SensorType)sensorTypeShortDepth;
_sensorFrameStreamerResearch.Enable(_sensorTypeResearch);
// Spatial perception
_spatialPerception = new SpatialPerception();
// Enable media frame source groups
// PV
_pvMediaFrameSourceGroup = new MediaFrameSourceGroup(
MediaFrameSourceGroupType.PhotoVideoCamera,
_spatialPerception,
_sensorFrameStreamerPv);
_pvMediaFrameSourceGroup.Enable(_sensorType);
// ToF Depth
_shortDepthMediaFrameSourceGroup = new MediaFrameSourceGroup(
MediaFrameSourceGroupType.HoloLensResearchModeSensors,
_spatialPerception,
_sensorFrameStreamerResearch);
_shortDepthMediaFrameSourceGroup.Enable(_sensorTypeResearch);
// Start media frame source groups
myText.text = "Starting MediaFrameSourceGroups...";
// Photo video
await _pvMediaFrameSourceGroup.StartAsync();
// ToF Depth
await _shortDepthMediaFrameSourceGroup.StartAsync();
_mediaFrameSourceGroupsStarted = true;
myText.text = "MediaFrameSourceGroups started...";
#endif
}
async Task StartHoloLensMediaFrameSourceGroups()
{
#if ENABLE_WINMD_SUPPORT
// Plugin doesn't work in the Unity editor
myText.text = "Initializing MediaFrameSourceGroups...";
// PV
Debug.Log("HoloLensForCVUnity.ArUcoDetection.StartHoloLensMediaFrameSourceGroup: Setting up sensor frame streamer");
_sensorType = (SensorType)sensorTypePv;
_sensorFrameStreamerPv = new SensorFrameStreamer();
_sensorFrameStreamerPv.Enable(_sensorType);
// Spatial perception
Debug.Log("HoloLensForCVUnity.ArUcoDetection.StartHoloLensMediaFrameSourceGroup: Setting up spatial perception");
_spatialPerception = new SpatialPerception();
// Enable media frame source groups
// PV
Debug.Log("HoloLensForCVUnity.ArUcoDetection.StartHoloLensMediaFrameSourceGroup: Setting up the media frame source group");
// Check if using research mode sensors
if (sensorTypePv == CvUtils.SensorTypeUnity.PhotoVideo)
{
_mediaFrameSourceGroup = MediaFrameSourceGroupType.PhotoVideoCamera;
}
else
{
_mediaFrameSourceGroup = MediaFrameSourceGroupType.HoloLensResearchModeSensors;
}
// Cast device type
_deviceType = (HoloLensForCV.DeviceType)deviceType;
_pvMediaFrameSourceGroup = new MediaFrameSourceGroup(
_mediaFrameSourceGroup,
_spatialPerception,
_deviceType,
_sensorFrameStreamerPv,
// Calibration parameters from opencv, compute once for each hololens 2 device
calibParams.focalLength.x, calibParams.focalLength.y,
calibParams.principalPoint.x, calibParams.principalPoint.y,
calibParams.radialDistortion.x, calibParams.radialDistortion.y, calibParams.radialDistortion.z,
calibParams.tangentialDistortion.x, calibParams.tangentialDistortion.y,
calibParams.imageHeight, calibParams.imageWidth);
_pvMediaFrameSourceGroup.Enable(_sensorType);
// Start media frame source groups
myText.text = "Starting MediaFrameSourceGroups...";
// Photo video
Debug.Log("HoloLensForCVUnity.ArUcoDetection.StartHoloLensMediaFrameSourceGroup: Starting the media frame source group");
await _pvMediaFrameSourceGroup.StartAsync();
_mediaFrameSourceGroupsStarted = true;
myText.text = "MediaFrameSourceGroups started...";
// Initialize the Unity coordinate system
// Get pointer to Unity's spatial coordinate system
// https://github.com/qian256/HoloLensARToolKit/blob/master/ARToolKitUWP-Unity/Scripts/ARUWPVideo.cs
try
{
_unityCoordinateSystem = Marshal.GetObjectForIUnknown(WorldManager.GetNativeISpatialCoordinateSystemPtr()) as SpatialCoordinateSystem;
}
catch (Exception)
{
Debug.Log("ArUcoDetectionHoloLensUnity.ArUcoMarkerDetection: Could not get pointer to Unity spatial coordinate system.");
throw;
}
// Initialize the aruco marker detector with parameters
await _pvMediaFrameSourceGroup.StartArUcoMarkerTrackerAsync(
markerSize,
(int)arUcoDictionaryName,
_unityCoordinateSystem);
#endif
}
