I've been trying to figure out how one might explore encoding beyond the presets available in AV Foundation. It seems that QTKit featured finely grained encoding options for h264, etc, though I just read another thread here circa 12/2011 saying AV Foundation is the way to go when you're looking to go beyond "playing" AV assets.. Please forgive me if I'm overlooking something obvious. A google search yields just a plist of what appears to be the detailed encoding params (albeit outdated) of AV Foundation's encoding options. Further, I was under the impression that gpu accelerated encoding could be achieved only through AV F. On a higher level, the app I'm building encodes h264 from what will be fairly large ProRes files. Very much appreciate any tips. Feel like I'm missing something obvious.