/// <summary>
        /// Creates a video stream from an attached camera.
        /// </summary>
        /// <param name="cameraIndex">Specifies which camera should be used if multiple cameras are available</param>
        /// <param name="useAudio">Defines whether the video should be played with sound. Note that this option only affects the web build because at the moment
        /// videos with sound are not supported yet in the native build.</param>
        /// <returns>An <see cref="IVideoStreamImp"/>.</returns>
        /// <remarks>If you want to use thr audio input, please be aware that this might cause accusstic feedback if your camera has an integrated microphone.</remarks>
        public IVideoStreamImp CreateVideoStreamImpFromCamera(int cameraIndex, bool useAudio)
        {
            FilterInfoCollection videosources = new FilterInfoCollection(FilterCategory.VideoInputDevice);

            _videoCaptureDevice = new VideoCaptureDevice(videosources[cameraIndex].MonikerString);
            return(_stream = new VideoStreamImp(_videoCaptureDevice, useAudio));
        }
 /// <summary>
 /// Creates a video stream from a local video file.
 /// </summary>
 /// <param name="filename">The path to the video file.</param>
 /// <param name="loopVideo">Defines whether the video sould be looped.</param>
 /// <param name="useAudio">Defines whether the video should be played with sound. Note that this option only affects the web build because at the moment
 /// videos with sound are not supported yet in the native build.</param>
 /// <returns>An <see cref="IVideoStreamImp"/>.</returns>
 /// <remarks>If you want to create a web-build, please pay attention to the video-codec and format as not all
 /// formats are supported in HTML5. The recommended format is .webm as this container is supported in all common browsers.</remarks>
 public IVideoStreamImp CreateVideoStreamImpFromFile(string filename, bool loopVideo, bool useAudio)
 {
     _source = new VideoFileSource(filename);
     return(_stream = new VideoStreamImp(_source, loopVideo, useAudio));
 }