mp4 libx264 partitions=i8x8,i4x4,p8x8,b8x8 me_method=hex subq=7 me_range=16 g=250 keyint_min=25 sc_threshold=40 i_qfactor=0.71 b_strategy=1 qcomp=0.6 qmin=10 qmax=51 qdiff=4 bf=3 refs=3 directpred=1 trellis=1 mixed-refs=1 weightp=2 8x8dct=1 fast-pskip=1 mbtree=1