I am trying to use intel quicksync to hw decode my h264 video for speed up. So far the only available source filter in avisynth I know of is by using LAV decoder's IQS option, and connect it to directshow using graphicstudionext like here:
http://forum.doom9.org/showthread.ph...57#post1652157
The speed is very nice, but I was wondering whether this method was frame accurate?