Capture image with MediaStreamSource - windows-phone-8

Question

Im using a MediaStreamSource to use the camera... everything works, except when I try to capture the image!
I think the problem is the object MediaStreamSource
public class CameraStreamSourceModel : MediaStreamSource
{
private MemoryStream _cameraStream = null; // here I've the stream from camera
...
public async void CapturePhoto()
{
// Save the image as a jpeg to the camera roll
MediaLibrary library = new MediaLibrary();
string filename = AppResources.ApplicationTitle + "_" + DateTime.Now.ToString("G");
Picture pic = library.SavePicture(filename, _cameraStream); //Here I've the exception
}
}
The exception is
System.InvalidOperationException: An unexpected error has occurred.
I've enabled ID_CAP_MEDIALIB_PHOTO.
I am sure the code to save image works because i can save static stream in media library, but not stream from camera!
Can anyone help me? Thank you

Answer 1

You could simply use a camera_capture_task
CameraCaptureTask cameraCaptureTask;
public Transaction()
{
InitializeComponent();
cameraCaptureTask = new CameraCaptureTask();
cameraCaptureTask.Completed += new EventHandler<PhotoResult>(cameraCaptureTask_Completed);
}
void cameraCaptureTask_Completed(object sender, PhotoResult e)
{
if (e.TaskResult == TaskResult.OK)
{
//Code to display the photo on the page in an image control named myImage.
System.Windows.Media.Imaging.BitmapImage bmp = new System.Windows.Media.Imaging.BitmapImage();
bmp.SetSource(e.ChosenPhoto);
pic.Source = bmp;
pic_name = "" + DateTime.Now.Month + "" + DateTime.Now.Hour + "" + DateTime.Now.Minute + "" + DateTime.Now.Second+".jpeg";
SaveToIsolatedStorage(e.ChosenPhoto, "" + pic_name);
}
}