private async Task ApplyVideoEffectAsync()
{
if (currentState == RecordingState.Previewing)
{
previewEffect = ConstructVideoEffect();
await mediaCapture.AddVideoEffectAsync(previewEffect, MediaStreamType.VideoPreview);
}
else if (currentState == RecordingState.NotInitialized || currentState == RecordingState.Stopped)
{
await new MessageDialog("The preview or recording stream is not available.", "Effect not applied").ShowAsync();
}
}
private async Task ClearVideoEffectsAsync()
{
await mediaCapture.ClearEffectsAsync(MediaStreamType.VideoPreview);
previewEffect = null;
}