private void TestDuration()
{
int hr;
long l;
double d;
IAMTimelineObj pTrack1Obj;
hr = m_pTimeline.CreateEmptyNode(out pTrack1Obj, TimelineMajorType.Track);
DESError.ThrowExceptionForHR(hr);
// tell the composition about the track
IAMTimelineComp pRootComp = (IAMTimelineComp)m_pVideoGroup;
hr = pRootComp.VTrackInsBefore(pTrack1Obj, -1);
DESError.ThrowExceptionForHR(hr);
m_VideoTrack = (IAMTimelineTrack)pTrack1Obj;
AddVideo("foo.avi");
AddVideo("foxo.avi");
hr = m_pTimeline.GetDuration(out l);
DESError.ThrowExceptionForHR(hr);
Debug.Assert(l == 10000000000, "Duration");
hr = m_pTimeline.GetDuration2(out d);
DESError.ThrowExceptionForHR(hr);
Debug.Assert(d == 1000.0, "GetDuration2");
hr = m_pTimeline.ValidateSourceNames(SFNValidateFlags.Replace | SFNValidateFlags.Check | SFNValidateFlags.Popup, this, IntPtr.Zero);
DESError.ThrowExceptionForHR(hr);
}