RTMP Streaming Directshow Filter Reference

EC_RTMP_DISCONNECT

 Fire this events when No network connection or connected RTMP server, then network connection is lost.

VC++ Example:
CComQIPtr<IMediaEventEx,&IID_IMediaEventEx> pEvent(m_pFg);
hr = pEvent->GetEvent(&evCode, &param1, &param2, 0);
switch( evCode ){
case EC_RTMP_DISCONNECT :
 break;
}