VAAPI: Don't use swfilter for large surfaces - fallback to vaapi render

This stops using of sse copy routines for large surfaces. It introduces a fallback to the swrender - cause the statemachine wants a correctly setup m_pp after that method, if we don't care for this AddPicture will segfault.

Open for more input, e.g. better error handling.
okay, will change, but setting the debug marker onto the return value is not so much an issue.