[FFmpeg-user] lagfun misunderstanding?

Sun Mar 29 16:13:06 EEST 2020

I do apologise, the example I just posted omitted the planes argument to
lagfun, here's the command I was using and resulting output

 ffmpeg -i IMG_1685.MOV -q:v 0 -vcodec h264 -acodec aac -strict -2 -filter:v
format=pix_fmts=rgb24,lagfun=decay=0.999:planes=1  greenlagtest2.mp4

input http://www.robinbussell.co.uk/mov/IMG_1685.MOV

output http://www.robinbussell.co.uk/mov/greenlagtest2.mp4

console:
ffmpeg version 4.2.2-1build1~18.04.sav0 Copyright (c) 2000-2019 the FFmpeg
developers
  built with gcc 7 (Ubuntu 7.4.0-1ubuntu1~18.04.1)
  configuration: --prefix=/usr --extra-version='1build1~18.04.sav0'
--toolchain=hardened --libdir=/usr/lib/x86_64-linux-gnu
--incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl
--disable-stripping --enable-avresample --disable-filter=resample
--enable-avisynth --enable-gnutls --enable-ladspa --enable-libaom
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
--enable-libcdio --enable-libcodec2 --enable-libflite --enable-libfontconfig
--enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm
--enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg
--enable-libopenmpt --enable-libopus --enable-libpulse --enable-librsvg
--enable-librubberband --enable-libshine --enable-libsnappy --enable-libsoxr
--enable-libspeex --enable-libssh --enable-libtheora --enable-libtwolame
--enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack
--enable-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid
--enable-libzmq --enable-libzvbi --enable-lv2 --enable-omx --enable-openal
--enable-opencl --enable-opengl --enable-sdl2 --enable-libdc1394
--enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r
--enable-libx264 --enable-shared
  libavutil      56. 31.100 / 56. 31.100
  libavcodec     58. 54.100 / 58. 54.100
  libavformat    58. 29.100 / 58. 29.100
  libavdevice    58.  8.100 / 58.  8.100
  libavfilter     7. 57.100 /  7. 57.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  5.100 /  5.  5.100
  libswresample   3.  5.100 /  3.  5.100
  libpostproc    55.  5.100 / 55.  5.100
Input #0, mov,mp4,m4a,3gp,3g2,mj2, from 'IMG_1685.MOV':
  Metadata:
    major_brand     : qt
    minor_version   : 0
    compatible_brands: qt
    creation_time   : 2020-03-28T12:20:59.000000Z
  Duration: 00:00:18.53, start: 0.000000, bitrate: 3829 kb/s
    Stream #0:0(und): Video: h264 (Main) (avc1 / 0x31637661), yuv420p(tv,
bt709), 1280x720, 3823 kb/s, 60.01 fps, 60 tbr, 600 tbn, 1200 tbc (default)
    Metadata:
      creation_time   : 2020-03-28T12:20:59.000000Z
      handler_name    : Core Media Video
      encoder         : H.264
    Stream #0:1(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
    Metadata:
      creation_time   : 2020-03-28T12:20:59.000000Z
      handler_name    : Core Media Metadata
    Stream #0:2(und): Data: none (mebx / 0x7862656D), 0 kb/s (default)
    Metadata:
      creation_time   : 2020-03-28T12:20:59.000000Z
      handler_name    : Core Media Metadata
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
Press [q] to stop, [?] for help
[libx264 @ 0x558c4e532ec0] using cpu capabilities: MMX2 SSE2Fast SSSE3
SSE4.2 AVX FMA3 BMI2 AVX2
[libx264 @ 0x558c4e532ec0] profile High 4:4:4 Predictive, level 3.2, 4:4:4
8-bit
[libx264 @ 0x558c4e532ec0] 264 - core 155 r2917 0a84d98 - H.264/MPEG-4 AVC
codec - Copyleft 2003-2018 - http://www.videolan.org/x264.html - options:
cabac=1 ref=3 deblock=1:0:0 analyse=0x1:0x111 me=hex subme=7 psy=1
psy_rd=1.00:0.00 mixed_ref=1 me_range=16 chroma_me=1 trellis=1 8x8dct=0
cqm=0 deadzone=21,11 fast_pskip=1 chroma_qp_offset=4 threads=12
lookahead_threads=2 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
Output #0, mp4, to 'greenlagtest2.mp4':
  Metadata:
    major_brand     : qt
    minor_version   : 0
    compatible_brands: qt
    encoder         : Lavf58.29.100
    Stream #0:0(und): Video: h264 (libx264) (avc1 / 0x31637661), yuv444p,
1280x720, q=-1--1, 60 fps, 15360 tbn, 60 tbc (default)
    Metadata:
      creation_time   : 2020-03-28T12:20:59.000000Z
      handler_name    : Core Media Video
      encoder         : Lavc58.54.100 libx264
    Side data:
      cpb: bitrate max/min/avg: 0/0/0 buffer size: 0 vbv_delay: -1
frame= 1112 fps= 52 q=-1.0 Lsize=    7458kB time=00:00:18.48
bitrate=3305.4kbits/s speed=0.857x
video:7451kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.094460%
[libx264 @ 0x558c4e532ec0] frame I:5     Avg QP:22.30  size: 50875
[libx264 @ 0x558c4e532ec0] frame P:968   Avg QP:25.04  size:  7422
[libx264 @ 0x558c4e532ec0] frame B:139   Avg QP:24.96  size:  1367
[libx264 @ 0x558c4e532ec0] consecutive B-frames: 81.5%  4.1%  4.3% 10.1%
[libx264 @ 0x558c4e532ec0] mb I  I16..4: 54.6%  0.0% 45.4%
[libx264 @ 0x558c4e532ec0] mb P  I16..4:  4.9%  0.0%  0.8%  P16..4: 36.4% 
6.5%  5.2%  0.0%  0.0%    skip:46.1%
[libx264 @ 0x558c4e532ec0] mb B  I16..4:  0.6%  0.0%  0.0%  B16..8: 26.0% 
0.7%  0.2%  direct: 0.4%  skip:72.1%  L0:29.8% L1:69.0% BI: 1.2%
[libx264 @ 0x558c4e532ec0] coded y,u,v intra: 12.9% 3.0% 3.8% inter: 6.9%
2.2% 1.6%
[libx264 @ 0x558c4e532ec0] i16 v,h,dc,p: 51% 26% 18%  6%
[libx264 @ 0x558c4e532ec0] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 18% 20% 31%  5% 
6%  5%  6%  4%  5%
[libx264 @ 0x558c4e532ec0] Weighted P-Frames: Y:2.9% UV:0.4%
[libx264 @ 0x558c4e532ec0] ref P L0: 39.3% 52.0%  6.1%  2.5%  0.1%
[libx264 @ 0x558c4e532ec0] ref B L0: 87.8%  9.8%  2.4%
[libx264 @ 0x558c4e532ec0] ref B L1: 97.7%  2.3%
[libx264 @ 0x558c4e532ec0] kb/s:3293.09

Thanks again,
  Robin.

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