openload.cc How can I extract encoding settings of videos?
Assuming it has been encoded with x264, download the file and run:

strings input | grep x264


It may output encoding information such as:

x264 - core 148 - H.264/MPEG-4 AVC codec - Copyleft 2003-2016 - 
http://www.videolan.org/x264.html - options: cabac=1 ref=3 deblock=1:0:0
analyse=0x3:0x113 me=hex subme=7 psy=1 psy_rd=1.00:0.00 mixed_ref=1 me_range=16
chroma_me=1 trellis=1 8x8dct=1 cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4
threads=6 lookahead_threads=1 sliced_threads=0 nr=0 decimate=1 interlaced=0
bluray_compat=0 constrained_intra=0 bframes=3 b_pyramid=2 b_adapt=1 b_bias=0
direct=1 weightb=1 open_gop=0 weightp=2 keyint=250 keyint_min=25 scenecut=40
intra_refresh=0 rc_lookahead=40 rc=crf mbtree=1 crf=23.0 qcomp=0.60 qpmin=0
qpmax=69 qpstep=4 ip_ratio=1.40 aq=1:1.00


Do not copy and paste the displayed options and values–instead use the appropriate preset. Using the info above it is safe to assume the default settings were used (equivalent of using -preset medium -crf 23).

I'm assuming you're running Linux since you did not specify. If you're using Windows then mediainfo will likely also provide the same info if it is there.