These functions are needed by a steam game called Super Naughty Maid. It uses DMO wrapper filter to play WMV videos.
-- v2: winegstreamer: Implement media_object_GetInputType for WMV decoder. mf/tests: Test IMediaObject_GetInputType for WMV decoder. winegstreamer: Implement media_object_GetStreamCount for WMV decoder. mf/tests: Test IMediaObject_GetStreamCount for WMV decoder. winegstreamer: Implement profile_GetStreamByNumber.