int ISampleGrabberCB.SampleCB(double SampleTime, IMediaSample pSample)
{
// Make sure we only get called once
if (!m_GotOne)
{
// copy the media sample to a member var
m_GotOne = true;
m_ims = pSample as IMediaSample2;
// Call all the tests
TestProperties();
m_ims = null;
// Set the completion event so DoTests can return
m_TestComplete.Set();
}
Marshal.ReleaseComObject(pSample);
return(0);
}
/// <summary>
/// Test all IMediaSampleTest methods
/// </summary>
public void DoTests()
{
m_graphBuilder = BuildGraph(g_TestFile);
// All the tests are called in ISampleGrabberCB.SampleCB, since
// that's where we are when we get the IMediaSample2
GetSample();
// All done. Release everything
if (m_graphBuilder != null)
{
Marshal.ReleaseComObject(m_graphBuilder);
m_graphBuilder = null;
}
if (m_MediaType != null)
{
DsUtils.FreeAMMediaType(m_MediaType);
m_MediaType = null;
}
m_ims = null;
}
