MissionPlanner.OSDVideo.SaveSizeInfo C# (CSharp) Method

        private void SaveSizeInfo(ISampleGrabber sampGrabber)
        {
            int hr;

            // Get the media type from the SampleGrabber
            AMMediaType media = new AMMediaType();
            hr = sampGrabber.GetConnectedMediaType(media);
            DsError.ThrowExceptionForHR(hr);

            if ((media.formatType != FormatType.VideoInfo) || (media.formatPtr == IntPtr.Zero))
            {
                throw new NotSupportedException("Unknown Grabber Media Format");
            }

            // Grab the size info
            VideoInfoHeader videoInfoHeader =
                (VideoInfoHeader) Marshal.PtrToStructure(media.formatPtr, typeof (VideoInfoHeader));
            m_videoWidth = videoInfoHeader.BmiHeader.Width;
            m_videoHeight = videoInfoHeader.BmiHeader.Height;
            m_stride = m_videoWidth*(videoInfoHeader.BmiHeader.BitCount/8);
            m_avgtimeperframe = videoInfoHeader.AvgTimePerFrame;

            DsUtils.FreeAMMediaType(media);
            media = null;
        }