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ffmpeg -i Power_1080p.mp4 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=-2 threads=1 lookahead_threads=1 sliced_threads=0 slices=2 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=25 keyint_min=13 scenecut=40 intra_refresh=0 rc_lookahead=25 rc=2pass mbtree=1 bitrate=4000 ratetol=1.0 qcomp=0.60 qpmin=0 qpmax=51 qpstep=4 cplxblur=20.0 qblur=0.5 vbv_maxrate=4000 vbv_bufsize=4000 nal_hrd=none filler=0 ip_ratio=1.40 aq=1:1.00 Power_TEST_1080p.mp4

Hi guys, I'm trying to render a MP4 with these settings and I get

[NULL @ 063b0b00] Unable to find a suitable output format for 'cabac=1'
cabac=1: Invalid argument

as an error. I need to render the MP4 with these settings (I DON'T want to use anything else)

What can I do?

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All of the settings soup after the filename are private options of the x264 encoder, for which you need to pass them as a string to a private option, delimited by :.
e.g.

-x264opts "cabac=1:ref=3:me=hex"

Many of the options are univalent so you can input them as seen above, but a few are multivalent (like deblock) and some don't correspond to input parameters like analyze, which is set by partitions. For these, see https://en.wikibooks.org/wiki/MeGUI/x264_Settings for a description of parameters.

| improve this answer | |
  • What program can I use for using these options? – Selim Karaman Feb 13 at 12:24
  • ffmpeg with libx264 enabled. – Gyan Feb 13 at 12:40

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