/// <summary>
/// Creates a visual for the xps document.
/// </summary>
/// <param name="sourceFile">Source file.</param>
/// <param name="visualSize">Reference to export dimensions of the visual.</param>
/// <returns>Visual of the file.</returns>
private Visual CreateXpsVisual(string sourceFile, out IntSize visualSize)
{
try {
XpsDocument xpsDocument = new XpsDocument(sourceFile, FileAccess.Read);
FixedDocumentSequence documentPageSequence = xpsDocument.GetFixedDocumentSequence();
DocumentPage documentPage = documentPageSequence.DocumentPaginator.GetPage(0);
visualSize.Width = (int)documentPage.Size.Width;
visualSize.Height = (int)documentPage.Size.Height;
xpsDocument.Close();
return documentPage.Visual;
} catch {
throw new Exception();
}
}
/// <summary>
/// Creates a visual from screencaptures.
/// </summary>
/// <param name="sourceFile">Source file.</param>
/// <param name="timeSpan">Time span where the capture has to be done.</param>
/// <param name="visualSize">Reference to export dimensions of the visual.</param>
/// <returns>Visual of the file.</returns>
private Visual CreateVideoVisual(string sourceFile, TimeSpan timeSpan, out IntSize visualSize)
{
try {
Uri sourceUri = new Uri(sourceFile);
var mutexLock = new Mutex(false, sourceUri.GetHashCode().ToString());
mutexLock.WaitOne();
MediaPlayer mediaPayer = new MediaPlayer { Volume = 0, ScrubbingEnabled = true };
mediaPayer.Open(sourceUri);
mediaPayer.Pause();
mediaPayer.Position = timeSpan;
Thread.Sleep(1000);
visualSize.Width = mediaPayer.NaturalVideoWidth;
visualSize.Height = mediaPayer.NaturalVideoHeight;
DrawingVisual drawingVisual = new DrawingVisual();
using (DrawingContext drawingContext = drawingVisual.RenderOpen()) {
drawingContext.DrawVideo(mediaPayer, new Rect(0, 0, visualSize.Width, visualSize.Height));
}
mediaPayer.Close();
mutexLock.ReleaseMutex();
return drawingVisual;
} catch {
throw new Exception();
}
}
