private async Task AddEffectsAsync()
{
UpdateConfiguration();
var videoEffectDefinition = new Windows.Media.Effects.VideoEffectDefinition("Lumia.Imaging.VideoEffect", m_configurationPropertySet);
await m_mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
await m_mediaCapture.ClearEffectsAsync(MediaStreamType.VideoRecord);
await m_mediaCapture.ClearEffectsAsync(MediaStreamType.Photo);
await m_mediaCapture.AddVideoEffectAsync(videoEffectDefinition, MediaStreamType.VideoPreview);
switch (m_mediaCapture.MediaCaptureSettings.VideoDeviceCharacteristic)
{
case VideoDeviceCharacteristic.AllStreamsIndependent:
await m_mediaCapture.AddVideoEffectAsync(videoEffectDefinition, MediaStreamType.VideoRecord);
await m_mediaCapture.AddVideoEffectAsync(videoEffectDefinition, MediaStreamType.Photo);
break;
case VideoDeviceCharacteristic.PreviewPhotoStreamsIdentical:
case VideoDeviceCharacteristic.RecordPhotoStreamsIdentical:
await m_mediaCapture.AddVideoEffectAsync(videoEffectDefinition, MediaStreamType.VideoRecord);
break;
case VideoDeviceCharacteristic.PreviewRecordStreamsIdentical:
await m_mediaCapture.AddVideoEffectAsync(videoEffectDefinition, MediaStreamType.Photo);
break;
}
}
private async Task CloseCamera()
{
if (faceDetectionEffect != null && faceDetectionEffect.Enabled)
{
faceDetectionEffect.Enabled = false;
faceDetectionEffect.FaceDetected -= FaceDetected;
await capture.ClearEffectsAsync(MediaStreamType.VideoPreview);
faceDetectionEffect = null;
facesCanvas.Children.Clear();
}
if (capture != null)
{
if (isPreviewing)
{
await capture.StopPreviewAsync();
isPreviewing = false;
}
capture.Dispose();
capture = null;
}
//if (photoFile != null)
//{
// await photoFile.DeleteAsync(StorageDeleteOption.PermanentDelete);
// photoFile = null;
//}
}
private async Task ResetEffectsAsync()
{
if (mediaCapture.CameraStreamState == CameraStreamState.Streaming)
{
await mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
}
}
/// <summary>
/// Disables and removes the video stabilization effect, and unregisters the event handler for the EnabledChanged event of the effect
/// </summary>
/// <returns></returns>
private async Task CleanUpVideoStabilizationEffectAsync()
{
// No work to be done if there is no effect
if (_videoStabilizationEffect == null)
{
return;
}
// Disable the effect
_videoStabilizationEffect.Enabled = false;
_videoStabilizationEffect.EnabledChanged -= VideoStabilizationEffect_EnabledChanged;
// Remove the effect from the record stream
await _mediaCapture.ClearEffectsAsync(MediaStreamType.VideoRecord);
Debug.WriteLine("VS effect removed from pipeline");
// If backed up settings (stream properties and encoding profile) exist, restore them and clear the backups
if (_inputPropertiesBackup != null)
{
await _mediaCapture.VideoDeviceController.SetMediaStreamPropertiesAsync(MediaStreamType.VideoRecord, _inputPropertiesBackup);
_inputPropertiesBackup = null;
}
if (_outputPropertiesBackup != null)
{
_encodingProfile.Video = _outputPropertiesBackup;
_outputPropertiesBackup = null;
}
// Clear the member variable that held the effect instance
_videoStabilizationEffect = null;
}
public async Task StopEverything()
{
if (Preview.Previewing)
{
await Preview.StopAsync();
}
if (Video.Capturing)
{
await Video.StopAsync();
}
if (FaceDetection != null)
{
FaceDetection.Enabled = false;
FaceDetection.FaceDetected -= FaceDetection_FaceDetected;
}
if (DefaultManager != null)
{
DefaultManager.RecordLimitationExceeded -= DefaultManager_RecordLimitationExceeded;
await DefaultManager.ClearEffectsAsync(MediaStreamType.VideoPreview);
DefaultManager.Dispose();
DefaultManager = null;
}
}
private async void CoreApplication_EnteredBackground(object sender, EnteredBackgroundEventArgs e)
{
var Deferral = e.GetDeferral();
await Capture.ClearEffectsAsync(MediaStreamType.VideoPreview);
await Capture.StopPreviewAsync();
Capture = null;
MediaCaptureProvider.Dispose();
CaptureControl.Source = null;
StayAwake.RequestRelease();
Deferral.Complete();
}
private async void FaceStopDetect()
{
_faceDetectionEffect.Enabled = false;
_faceDetectionEffect.FaceDetected -= FaceDetectionEffect_FaceDetected;
await _mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
_faceDetectionEffect = null; this.cvsFaceOverlay.Children.Clear();
this.cvsFaceOverlay.Children.Clear();
}
private async void btnStopDetection_Click(object sender, RoutedEventArgs e)
{
this.cvsFaceOverlay.Children.Clear();
_faceDetectionEffect.Enabled = false;
_faceDetectionEffect.FaceDetected -= FaceDetectionEffect_FaceDetected;
await _mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
_faceDetectionEffect = null;
}
private async void getWebcam2()
{
MediaCapture capture = new MediaCapture();
await capture.InitializeAsync();
await capture.ClearEffectsAsync(MediaStreamType.VideoRecord);
cap_CaptureElement.Source = capture;
await capture.StartPreviewAsync();
}
private async Task CleanupCameraAsync()
{
await mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
await mediaCapture.StopPreviewAsync();
PreviewControl.Source = null;
mediaCapture.Dispose();
mediaCapture = null;
}
/// <summary>
/// Asynchronously stop face detection
/// </summary>
public async Task StopFaceDetectionAsync()
{
if (FaceDetectionEffect != null)
{
FaceDetectionEffect.Enabled = false;
await MediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
FaceDetectionEffect = null;
}
}
private async void OnStateChanged(VideoEffectState newState, VideoEffectState oldState)
{
switch (newState)
{
case VideoEffectState.Idle:
await MediaCapture.ClearEffectsAsync(PreviewMediaStreamType);
break;
case VideoEffectState.Locked:
case VideoEffectState.PostProcess:
break;
}
}
/// <summary>
/// Disables and removes the face detection effect, and unregisters the event handler for face detection
/// </summary>
/// <returns></returns>
private async Task CleanUpFaceDetectionEffectAsync()
{
// Disable detection
_faceDetectionEffect.Enabled = false;
// Unregister the event handler
_faceDetectionEffect.FaceDetected -= FaceDetectionEffect_FaceDetected;
// Remove the effect from the preview stream
await _mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
// Clear the member variable that held the effect instance
_faceDetectionEffect = null;
}
/// <summary>
/// Disables and removes the scene analysis effect, and unregisters the event handler for the SceneAnalyzed event of the effect
/// </summary>
/// <returns></returns>
private async Task CleanSceneAnalysisEffectAsync()
{
// Disable detection
_sceneAnalysisEffect.HighDynamicRangeAnalyzer.Enabled = false;
_sceneAnalysisEffect.SceneAnalyzed -= SceneAnalysisEffect_SceneAnalyzed;
// Remove the effect from the preview stream
await _mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
Debug.WriteLine("SA effect removed from pipeline");
// Clear the member variable that held the effect instance
_sceneAnalysisEffect = null;
}
private async Task StopMediaCaptureSession()
{
if (isRecording)
{
faceDetectionEffect.Enabled = false;
faceDetectionEffect.FaceDetected -= FaceDetectionEffect_FaceDetected;
await mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
await mediaCapture.StopPreviewAsync();
await mediaCapture.StopRecordAsync();
isRecording = false;
faceDetectionEffect = null;
}
}
/// <summary>
/// Record button tapped for either starting or stopping video recording
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private async void RecordButton_Tapped(object sender, TappedRoutedEventArgs e)
{
if (_isRecording)
{
RecordSymbol.Symbol = Symbol.Target;
await StopVideoRecordingAsync();
await _mediaCapture.ClearEffectsAsync(MediaStreamType.VideoRecord);
if (_sphericalProjectionEffect != null)
{
if (_sphericalProjectionEffect.SphericalProjection.IsEnabled)
{
_mediaPlayerProjection.IsEnabled = (_mediaPlayerProjection.FrameFormat == SphericalVideoFrameFormat.Equirectangular) || (ToggleForceSpherical.IsChecked == true);
_mediaPlayerProjection.FrameFormat = _sphericalProjectionEffect.SphericalProjection.FrameFormat;
_mediaPlayerProjection.HorizontalFieldOfViewInDegrees = _sphericalProjectionEffect.SphericalProjection.HorizontalFieldOfViewInDegrees;
_mediaPlayerProjection.ProjectionMode = _sphericalProjectionEffect.SphericalProjection.ProjectionMode;
_mediaPlayerProjection.ViewOrientation = _sphericalProjectionEffect.SphericalProjection.ViewOrientation;
}
_sphericalProjectionEffect = null;
}
}
else
{
RecordSymbol.Symbol = Symbol.Stop;
if (ToggleRecordProjection.IsChecked == true)
{
_sphericalProjectionEffect = new Windows.Media.Effects.VideoTransformEffectDefinition();
_sphericalProjectionEffect.SphericalProjection.IsEnabled = _mediaPlayerProjection.IsEnabled;
_sphericalProjectionEffect.SphericalProjection.FrameFormat = _mediaPlayerProjection.FrameFormat;
_sphericalProjectionEffect.SphericalProjection.HorizontalFieldOfViewInDegrees = _mediaPlayerProjection.HorizontalFieldOfViewInDegrees;
_sphericalProjectionEffect.SphericalProjection.ProjectionMode = _mediaPlayerProjection.ProjectionMode;
_sphericalProjectionEffect.SphericalProjection.ViewOrientation = _mediaPlayerProjection.ViewOrientation;
_mediaPlayerProjection.IsEnabled = false;
await _mediaCapture.AddVideoEffectAsync(_sphericalProjectionEffect, MediaStreamType.VideoRecord);
}
await StartVideoRecordingAsync();
}
_isRecording = !_isRecording;
await EnableDisableCameraControlsOnUI(!_isRecording);
}
/// <summary>
/// Stops the camera preview and releases all resources
/// </summary>
/// <returns></returns>
public async Task CleanupCameraAsync()
{
if (_mediaCapture != null)
{
if (_isDetecting)
{
// Disable detection
_faceDetectionEffect.Enabled = false;
// Unregister the event handler
_faceDetectionEffect.FaceDetected -= FaceDetectionEffect_FaceDetected;
// Remove the effect from the preview stream
await _mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
// Clear the member variable that held the effect instance
_faceDetectionEffect = null;
_isDetecting = false;
}
if (IsPreviewing)
{
await _mediaCapture.StopPreviewAsync();
IsPreviewing = false;
}
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
CameraPreview.Source = null;
if (_displayRequest != null)
{
_displayRequest.RequestRelease();
}
_mediaCapture.Dispose();
_mediaCapture = null;
});
}
}
/// <summary>
/// Starts/stops the effect.
/// </summary>
/// <returns>True, if the effect was set on. False, if it was turned off.</returns>
public async Task <bool> ToggleEffectAsync()
{
if (Started)
{
if (EffectSet)
{
await MediaCapture.ClearEffectsAsync(PreviewMediaStreamType);
StateManager.State = VideoEffectState.Idle;
}
else
{
Messenger.SettingsChangedFlag = true;
Messenger.ModeChangedFlag = true;
await MediaCapture.AddEffectAsync(PreviewMediaStreamType, RealtimeTransformActivationId, Properties);
StateManager.State = VideoEffectState.Locking;
}
}
return(EffectSet);
}
//</SnippetStartRecordWithRotation>
async void AddEffectCapture(MediaCapture captureMgrReal)
{
// <SnippetCaptureAddEffect>
MediaCapture captureMgr = new MediaCapture();
await captureMgr.InitializeAsync();
await captureMgr.AddEffectAsync(
MediaStreamType.VideoRecord,
Windows.Media.VideoEffects.VideoStabilization,
null);
// </SnippetCaptureAddEffect>
// For Testing snippet. Don't include in snippet.
captureMgrReal = captureMgr;
capturePreview.Source = captureMgrReal;
await captureMgr.StartPreviewAsync();
// <SnippetCaptureRemoveEffect>
// captureMgr is of type MediaCapture.
await captureMgr.ClearEffectsAsync(MediaStreamType.VideoRecord);
// </SnippetCaptureRemoveEffect>
}
private async Task ClearVideoEffectsAsync()
{
await mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
previewEffect = null;
}
async private void removeEffects()
{
await mediaCapture.ClearEffectsAsync(
MediaStreamType.VideoPreview
);
}
async void ClearEffectsCapture(MediaCapture captureMgr)
{
await captureMgr.ClearEffectsAsync(MediaStreamType.VideoRecord);
}
