это просто генерация файла для замера времени
frame= 300 fps= 13 q=-1.0 Lsize= 121kB time=00:00:09.90 bitrate= 100.2kbits/s speed=0.435x
video:115kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB muxing overhead: 5.347693%
[libx264 @ 0xab48b780] frame I:2 Avg QP:12.80 size: 7804
[libx264 @ 0xab48b780] frame P:76 Avg QP:15.25 size: 775
[libx264 @ 0xab48b780] frame B:222 Avg QP:14.93 size: 191
[libx264 @ 0xab48b780] consecutive B-frames: 1.3% 0.0% 0.0% 98.7%
[libx264 @ 0xab48b780] mb I I16..4: 51.5% 43.8% 4.7%
[libx264 @ 0xab48b780] mb P I16..4: 3.3% 0.5% 0.3% P16..4: 3.8% 0.3% 0.0% 0.0% 0.0% skip:91.8%
[libx264 @ 0xab48b780] mb B I16..4: 0.1% 0.1% 0.0% B16..8: 2.9% 0.0% 0.0% direct: 0.0% skip:97.0% L0:48.9% L1:49.6% BI: 1.5%
[libx264 @ 0xab48b780] 8x8 transform intra:26.7% inter:73.9%
[libx264 @ 0xab48b780] coded y,u,v intra: 2.8% 2.3% 2.4% inter: 0.0% 0.0% 0.0%
[libx264 @ 0xab48b780] i16 v,h,dc,p: 77% 18% 1% 4%
[libx264 @ 0xab48b780] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 42% 15% 43% 0% 0% 0% 0% 0% 0%
[libx264 @ 0xab48b780] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 19% 51% 26% 1% 0% 1% 0% 1% 0%
[libx264 @ 0xab48b780] Weighted P-Frames: Y:0.0% UV:0.0%
[libx264 @ 0xab48b780] ref P L0: 65.1% 1.2% 22.4% 11.3%
[libx264 @ 0xab48b780] ref B L0: 82.7% 15.9% 1.4%
[libx264 @ 0xab48b780] ref B L1: 95.6% 4.4%
[libx264 @ 0xab48b780] kb/s:93.64
real 0m26.792s
user 0m54.303s
sys 0m1.179s