For me, FRIMSource is also faster but CPU and RAM usage are also more important than DGMVCSource.

How do you make your test ? What do you do to enable or not HW acceleration ? And what is your CPU ?

Hi :) Doom9 seems to be still down :( So I have made 2 tests with my Intel i5-3570 (with HD Graphics 2500) and your decoder. I have launched a little cmdline to test : x264.exe --crf 20 Script.avs --output H:\Test.264 Script.avs contains your Half SBS example. With b15 (so no HW acceleration because...