Currently, I want to use a customer media source for IMFMediaEngine, I use Windows::Media::MediaExtensionManager::RegisterSchemeHandler to register a scheme. but after IMFMediaEngine::SetSource then invoke IMFMediaEngine::Load, the IMFMediaEngine can't
load the customer source I have registerd in Windows::Media::MediaExtensionManager::RegisterSchemeHandler.
]I found there has a IMFMediaEngineExtension interface which can load customer source, but this interface need inhert by my customer source and before create IMFMediaEngine, the pointer of this interface should pass to MF_MEDIA_ENGINE_EXTESION attribute.
Is there any way can get the customer source in Windows::Media::MediaExtensionManager, or the Windows::Media::MediaExtensionManager only for MediaElement.
Thanks.