libva-intel-driver:
    intel still has hangups most with 1080i
    osd has sometimes wrong size (workaround written)

libva-vdpau-driver:
    G210 osd update too slow (needs hardware problem workaround)
    OSD update is too slow
    hangup on exit (VaapiDelDecoder -> VaapiCleanup
	-> vaDestroyContext -> pthread_rwlock_wrlock)

x11:
    support resize of x11 window
    support fullscreen window
    support fullscreen / window toggle

video/audio asyncron

playback of >2 channels on 2 channel hardware

playback of recording