/// <summary>
/// This event will be raised every time the effect processes a preview frame, to deliver information about the current scene in the camera preview.
/// </summary>
/// <param name="sender">The effect raising the event.</param>
/// <param name="args">The event data.</param>
private async void SceneAnalysisEffect_SceneAnalyzed(SceneAnalysisEffect sender, SceneAnalyzedEventArgs args)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
// Create a graphical representation of how much detail could be recovered through an HDR capture, ranging
// from 0 ("everything is within the dynamic range of the camera") to CERTAINTY_CAP ("at this point the app
// strongly recommends an HDR capture"), where CERTAINTY_CAP can be any number between 0 and 1.
HdrImpactBar.Value = Math.Min(CERTAINTY_CAP, args.ResultFrame.HighDynamicRange.Certainty);
});
}
/// <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 and unsubscribe from the events
_sceneAnalysisEffect.HighDynamicRangeAnalyzer.Enabled = false;
_sceneAnalysisEffect.SceneAnalyzed -= SceneAnalysisEffect_SceneAnalyzed;
// Remove the effect from the pipeline (see ClearEffectsAsync method to remove all effects from a given stream)
await _mediaCapture.RemoveEffectAsync(_sceneAnalysisEffect);
Debug.WriteLine("SA effect removed from pipeline");
// Clear the member variable that held the effect instance
_sceneAnalysisEffect = 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;
}
/// <summary>
/// Adds scene analysis to the video preview stream, registers for its event, enables it, and gets the effect instance
/// </summary>
/// <returns></returns>
private async Task CreateSceneAnalysisEffectAsync()
{
// Create the definition, which will contain some initialization settings
var definition = new SceneAnalysisEffectDefinition();
// Add the effect to the video record stream
_sceneAnalysisEffect = (SceneAnalysisEffect)await _mediaCapture.AddVideoEffectAsync(definition, MediaStreamType.VideoPreview);
Debug.WriteLine("SA effect added to pipeline");
// Subscribe to notifications about scene information
_sceneAnalysisEffect.SceneAnalyzed += SceneAnalysisEffect_SceneAnalyzed;
// Enable HDR analysis
_sceneAnalysisEffect.HighDynamicRangeAnalyzer.Enabled = true;
}
/// <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;
}
/// <summary>
/// Adds scene analysis to the video preview stream, registers for its event, enables it, and gets the effect instance
/// </summary>
/// <returns></returns>
private async Task CreateSceneAnalysisEffectAsync()
{
// Create the definition, which will contain some initialization settings
var definition = new SceneAnalysisEffectDefinition();
// Add the effect to the video record stream
_sceneAnalysisEffect = (SceneAnalysisEffect)await _mediaCapture.AddVideoEffectAsync(definition, MediaStreamType.VideoPreview);
Debug.WriteLine("SA effect added to pipeline");
// Subscribe to notifications about scene information
_sceneAnalysisEffect.SceneAnalyzed += SceneAnalysisEffect_SceneAnalyzed;
// Enable HDR analysis
_sceneAnalysisEffect.HighDynamicRangeAnalyzer.Enabled = true;
}
/// <summary>
/// This event will be raised every time the effect processes a preview frame, to deliver information about the current scene in the camera preview.
/// </summary>
/// <param name="sender">The effect raising the event.</param>
/// <param name="args">The event data.</param>
private async void SceneAnalysisEffect_SceneAnalyzed(SceneAnalysisEffect sender, SceneAnalyzedEventArgs args)
{
await Dispatcher.RunAsync(CoreDispatcherPriority.Normal, () =>
{
// Create a graphical representation of how much detail could be recovered through an HDR capture, ranging
// from 0 ("everything is within the dynamic range of the camera") to CERTAINTY_CAP ("at this point the app
// strongly recommends an HDR capture"), where CERTAINTY_CAP can be any number between 0 and 1.
HdrImpactBar.Value = Math.Min(CERTAINTY_CAP, args.ResultFrame.HighDynamicRange.Certainty);
});
}
/// <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 and unsubscribe from the events
_sceneAnalysisEffect.HighDynamicRangeAnalyzer.Enabled = false;
_sceneAnalysisEffect.SceneAnalyzed -= SceneAnalysisEffect_SceneAnalyzed;
// Remove the effect from the pipeline (see ClearEffectsAsync method to remove all effects from a given stream)
await _mediaCapture.RemoveEffectAsync(_sceneAnalysisEffect);
Debug.WriteLine("SA effect removed from pipeline");
// Clear the member variable that held the effect instance
_sceneAnalysisEffect = null;
}
public SceneAnalysisEffectEvents(SceneAnalysisEffect This)
{
this.This = This;
}
