protected void CreateSession()
{
TRACE("CPlayer::CreateSession");
HResult hr;
IMFAttributes pAttributes;
IMFActivate pEnablerActivate;
// Close the old session, if any.
CloseSession();
// Create a new attribute store.
hr = MFExtern.MFCreateAttributes(out pAttributes, 1);
MFError.ThrowExceptionForHR(hr);
// Create the content protection manager.
m_pContentProtectionManager = new ContentProtectionManager(m_hwndEvent);
// Set the MF_SESSION_CONTENT_PROTECTION_MANAGER attribute with a pointer
// to the content protection manager.
hr = pAttributes.SetUnknown(
MFAttributesClsid.MF_SESSION_CONTENT_PROTECTION_MANAGER,
m_pContentProtectionManager
);
MFError.ThrowExceptionForHR(hr);
// Create the PMP media session.
try
{
hr = MFExtern.MFCreatePMPMediaSession(
MFPMPSessionCreationFlags.None,
pAttributes,
out m_pSession,
out pEnablerActivate
);
MFError.ThrowExceptionForHR(hr);
}
catch
{
// TODO:
// If MFCreatePMPMediaSession fails it might return an IMFActivate pointer.
// This indicates that a trusted binary failed to load in the protected process.
// An application can use the IMFActivate pointer to create an enabler object, which
// provides revocation and renewal information for the component that failed to
// load.
// This sample does not demonstrate that feature. Instead, we simply treat this
// case as a playback failure.
throw;
}
hr = m_pSession.BeginGetEvent(this, null);
MFError.ThrowExceptionForHR(hr);
SafeRelease(pAttributes);
SafeRelease(pEnablerActivate);
}
///////////////////////////////////////////////////////////////////////
// Name: GetContentProtectionManager
// Description: Returns the content protection manager object.
//
// This is a helper object for handling IMFContentEnabler operations.
/////////////////////////////////////////////////////////////////////////
public HResult GetContentProtectionManager(out ContentProtectionManager ppManager)
{
HResult hr;
ppManager = m_pContentProtectionManager;
if (m_pContentProtectionManager == null)
{
hr = unchecked ((HResult)0x80004005); // Session wasn't created yet. No helper object;
}
else
{
hr = 0;
}
return(hr);
}
public CPlayer(IntPtr hVideo, IntPtr hEvent)
{
TRACE(("CPlayer::CPlayer"));
Debug.Assert(hVideo != IntPtr.Zero);
Debug.Assert(hEvent != IntPtr.Zero);
int hr;
m_pSession = null;
m_pSource = null;
m_pVideoDisplay = null;
m_hwndVideo = hVideo;
m_hwndEvent = hEvent;
m_state = PlayerState.Ready;
m_pContentProtectionManager = null;
m_hCloseEvent = new AutoResetEvent(false);
hr = MFExtern.MFStartup(0x10070, MFStartup.Full);
MFError.ThrowExceptionForHR(hr);
}
///////////////////////////////////////////////////////////////////////
// Name: GetContentProtectionManager
// Description: Returns the content protection manager object.
//
// This is a helper object for handling IMFContentEnabler operations.
/////////////////////////////////////////////////////////////////////////
public int GetContentProtectionManager(out ContentProtectionManager ppManager)
{
int hr;
ppManager = m_pContentProtectionManager;
if (m_pContentProtectionManager == null)
{
hr = unchecked((int)0x80004005); // Session wasn't created yet. No helper object;
}
else
{
hr = 0;
}
return hr;
}
protected void CreateSession()
{
TRACE("CPlayer::CreateSession");
int hr;
IMFAttributes pAttributes;
IMFActivate pEnablerActivate;
// Close the old session, if any.
CloseSession();
// Create a new attribute store.
hr = MFExtern.MFCreateAttributes(out pAttributes, 1);
MFError.ThrowExceptionForHR(hr);
// Create the content protection manager.
m_pContentProtectionManager = new ContentProtectionManager(m_hwndEvent);
// Set the MF_SESSION_CONTENT_PROTECTION_MANAGER attribute with a pointer
// to the content protection manager.
hr = pAttributes.SetUnknown(
MFAttributesClsid.MF_SESSION_CONTENT_PROTECTION_MANAGER,
m_pContentProtectionManager
);
MFError.ThrowExceptionForHR(hr);
// Create the PMP media session.
try
{
hr = MFExtern.MFCreatePMPMediaSession(
MFPMPSessionCreationFlags.None,
pAttributes,
out m_pSession,
out pEnablerActivate
);
MFError.ThrowExceptionForHR(hr);
}
catch
{
// TODO:
// If MFCreatePMPMediaSession fails it might return an IMFActivate pointer.
// This indicates that a trusted binary failed to load in the protected process.
// An application can use the IMFActivate pointer to create an enabler object, which
// provides revocation and renewal information for the component that failed to
// load.
// This sample does not demonstrate that feature. Instead, we simply treat this
// case as a playback failure.
throw;
}
hr = m_pSession.BeginGetEvent(this, null);
MFError.ThrowExceptionForHR(hr);
SafeRelease(pAttributes);
SafeRelease(pEnablerActivate);
}
public int Shutdown()
{
TRACE("CPlayer::ShutDown");
int hr = S_Ok;
try
{
if (m_pContentProtectionManager != null)
{
m_pContentProtectionManager.Dispose();
m_pContentProtectionManager = null;
}
if (m_hCloseEvent != null)
{
// Close the session
CloseSession();
// Shutdown the Media Foundation platform
hr = MFExtern.MFShutdown();
MFError.ThrowExceptionForHR(hr);
m_hCloseEvent.Close();
m_hCloseEvent = null;
}
}
catch (Exception ce)
{
hr = Marshal.GetHRForException(ce);
}
return hr;
}
