Problem with H264 Decoding


Currently running ffmpeg 2.8.4 with vdpau support enabled and M4000 card. It seems that any input source i use ( UDP are my sources ) that are H264 , it does not use the GPU to decode and instead uses up my CPU. The mpeg2video sources work just fine and decode using the card which is great but for some reason the H264 does not. Any idea what could be wrong ? I am using latest 258.16 drivers.