mediafoundation: Fix resource leak
IMFActivate would hold its internal objects unless user call ShutdownObject(), even if we release the IMFActivate. Here internal objects may include Direct3D objects, such as texture, device handle for example.
IMFActivate would hold its internal objects unless user call ShutdownObject(), even if we release the IMFActivate. Here internal objects may include Direct3D objects, such as texture, device handle for example.