I know a sample exists to bring FFmpeg muxing/demuxing capabilities to Intel Media SDK examples. I have tested that and I am pretty happy with it. It seems to work quite well. What would it take to get ffmpeg to use QuickSync as a transcoding service? Handbrake recently released a H264 Intel QS transcoding option for their application (http://handbrake.fr/downloads.php). It would be great to see the same with FFmpeg.
Any help would be much appreciated.