OpenVideoDecode and gstreamer

[qtnext]

Hi,

I need to decode HD video in an opengl software on Windows on very low 
cpu (E-450 for example) where cpu is not suffisant :
It seems that the only way is to use 
http://developer.amd.com/sdks/amdappsdk/assets/openvideo_decode_api.pdf 
to decode the stream.
1)- Is there an existing filter for gstreamer on windows.
2)- the decoder need raw bitstream .. And i need to play a movie, seek, 
... play audio . Is it easy to add an hardware open video decode filter 
to use gstreamer to demux, seek , play/pause and play audio and use only 
the OVD api to decode raw stream?