[FFmpeg-user] Creation of timelapse video stops at 133080144 bytes

Tue Dec 18 19:10:15 EET 2018

Hi ffmpeg-users,

I have been creating a timelapse video of images pulled from a security
camera and all was going great until a few days ago when the ffmpeg process
completes (seemingly without error) but the video size is no longer growing
and the video length stops at 2:01, despite the input file count growing (1
new image per minute).

Each output video file is now 133080144 bytes and never grows. Nothing else
has changed, I'm using pattern_type glob and the shell should have no issue
with 8000+ files on the command line.

Here is my command to generate the video:

#!/bin/sh
export TZ=America/Denver
date=$(date +"%Y-%m-%d_%H:%M");
ffmpeg -r 60 -pattern_type glob -i 'unifi/unifi*.jpg' -s hd1080 -movflags
+faststart -vcodec libx264 -loglevel quiet -y unifi-lot835-hd-$date.mp4

`ls 'unifi/unifi*.jpg' | wc` shows 8700+ files, and grows by 1 file each
minute. Yet the ffmpeg command now just stops at the same timelength and
filesize each time.

Any ideas what limits I'm hitting or why it's no longer making the file
larger / longer? What else can I answer or look into to help debug this?

I do get a lot of these, but the Internet seems to indicate I should ignore
them:

Past duration 0.999992 too large  126341kB time=00:01:58.80
bitrate=8712.0kbits/s dup=1 drop=0
    Last message repeated 6 times

I've attached the top x lines of the command without the quiet log level
below. I changed a few CLI flags when running outside the script as you'll
see, but the problem remains the same.

Thanks,
David

------------- Debug stuff below -------

Command Start Output
$ time ffmpeg -r 60 -pattern_type glob -i "unifi/unifi*.jpg" -movflags
+faststart -s hd1080 -vcodec libx264 unifi-lot835-hd-2018-12-18.mp4 && ln
-sf unifi-lot835-hd-2018-12-18.mp4 unifi-hd.mp4
ffmpeg version 2.8.15-0ubuntu0.16.04.1 Copyright (c) 2000-2018 the FFmpeg
developers
  built with gcc 5.4.0 (Ubuntu 5.4.0-6ubuntu1~16.04.10) 20160609
  configuration: --prefix=/usr --extra-version=0ubuntu0.16.04.1
--build-suffix=-ffmpeg --toolchain=hardened
--libdir=/usr/lib/x86_64-linux-gnu --incdir=/usr/include/x86_64-linux-gnu
--cc=cc --cxx=g++ --enable-gpl --enable-shared --disable-stripping
--disable-decoder=libopenjpeg --disable-decoder=libschroedinger
--enable-avresample --enable-avisynth --enable-gnutls --enable-ladspa
--enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca
--enable-libcdio --enable-libflite --enable-libfontconfig
--enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm
--enable-libmodplug --enable-libmp3lame --enable-libopenjpeg
--enable-libopus --enable-libpulse --enable-librtmp
--enable-libschroedinger --enable-libshine --enable-libsnappy
--enable-libsoxr --enable-libspeex --enable-libssh --enable-libtheora
--enable-libtwolame --enable-libvorbis --enable-libvpx --enable-libwavpack
--enable-libwebp --enable-libx265 --enable-libxvid --enable-libzvbi
--enable-openal --enable-opengl --enable-x11grab --enable-libdc1394
--enable-libiec61883 --enable-libzmq --enable-frei0r --enable-libx264
--enable-libopencv
  libavutil      54. 31.100 / 54. 31.100
  libavcodec     56. 60.100 / 56. 60.100
  libavformat    56. 40.101 / 56. 40.101
  libavdevice    56.  4.100 / 56.  4.100
  libavfilter     5. 40.101 /  5. 40.101
  libavresample   2.  1.  0 /  2.  1.  0
  libswscale      3.  1.101 /  3.  1.101
  libswresample   1.  2.101 /  1.  2.101
  libpostproc    53.  3.100 / 53.  3.100
[mjpeg @ 0x1f44700] Changeing bps to 8
Input #0, image2, from 'unifi/unifi*.jpg':
  Duration: 00:05:52.12, start: 0.000000, bitrate: N/A
    Stream #0:0: Video: mjpeg, yuvj420p(pc, bt470bg/unknown/unknown),
1920x1080 [SAR 1:1 DAR 16:9], 25 fps, 25 tbr, 25 tbn, 25 tbc
File 'unifi-lot835-hd-2018-12-18.mp4' already exists. Overwrite ? [y/N] y
No pixel format specified, yuvj420p for H.264 encoding chosen.
Use -pix_fmt yuv420p for compatibility with outdated media players.
[libx264 @ 0x1f53d00] using SAR=1/1
[libx264 @ 0x1f53d00] using cpu capabilities: MMX2 SSE2Fast SSSE3 SSE4.2 AVX
[libx264 @ 0x1f53d00] profile High, level 4.2
[libx264 @ 0x1f53d00] 264 - core 148 r2643 5c65704 - H.264/MPEG-4 AVC codec
- Copyleft 2003-2015 - 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=-2 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
Output #0, mp4, to 'unifi-lot835-hd-2018-12-18.mp4':
  Metadata:
    encoder         : Lavf56.40.101
    Stream #0:0: Video: h264 (libx264) ([33][0][0][0] / 0x0021),
yuvj420p(pc), 1920x1080 [SAR 1:1 DAR 16:9], q=-1--1, 60 fps, 15360 tbn, 60
tbc
    Metadata:
      encoder         : Lavc56.60.100 libx264
Stream mapping:
  Stream #0:0 -> #0:0 (mjpeg (native) -> h264 (libx264))
Press [q] to stop, [?] for help

Command End Output:
[mp4 @ 0x1f56e60] Starting second pass: moving the moov atom to the
beginning of the file
frame= 7311 fps= 12 q=-1.0 Lsize=  129961kB time=00:02:01.81
bitrate=8739.7kbits/s dup=1 drop=0
video:129886kB audio:0kB subtitle:0kB other streams:0kB global headers:0kB
muxing overhead: 0.058151%
[libx264 @ 0x1f53d00] frame I:35    Avg QP:22.98  size:100271
[libx264 @ 0x1f53d00] frame P:4140  Avg QP:25.49  size: 26709
[libx264 @ 0x1f53d00] frame B:3136  Avg QP:26.96  size:  6033
[libx264 @ 0x1f53d00] consecutive B-frames: 24.8% 50.2% 11.9% 13.2%
[libx264 @ 0x1f53d00] mb I  I16..4: 19.6% 77.3%  3.1%
[libx264 @ 0x1f53d00] mb P  I16..4: 12.5% 15.7%  0.2%  P16..4: 26.5%  6.1%
4.8%  0.0%  0.0%    skip:34.2%
[libx264 @ 0x1f53d00] mb B  I16..4:  3.0%  3.8%  0.0%  B16..8: 25.8%  1.7%
0.3%  direct: 2.0%  skip:63.4%  L0:44.4% L1:51.8% BI: 3.8%
[libx264 @ 0x1f53d00] 8x8 transform intra:55.8% inter:79.0%
[libx264 @ 0x1f53d00] coded y,uvDC,uvAC intra: 14.8% 21.2% 0.2% inter:
13.4% 8.9% 0.0%
[libx264 @ 0x1f53d00] i16 v,h,dc,p: 28% 45% 15% 13%
[libx264 @ 0x1f53d00] i8 v,h,dc,ddl,ddr,vr,hd,vl,hu: 24% 23% 48%  1%  1%
1%  1%  1%  1%
[libx264 @ 0x1f53d00] i4 v,h,dc,ddl,ddr,vr,hd,vl,hu: 22% 26% 25%  4%  6%
4%  6%  3%  5%
[libx264 @ 0x1f53d00] i8c dc,h,v,p: 61% 22% 17%  1%
[libx264 @ 0x1f53d00] Weighted P-Frames: Y:46.0% UV:16.5%
[libx264 @ 0x1f53d00] ref P L0: 50.1% 17.1% 18.2%  9.7%  4.9%
[libx264 @ 0x1f53d00] ref B L0: 64.0% 32.3%  3.6%
[libx264 @ 0x1f53d00] ref B L1: 94.1%  5.9%
[libx264 @ 0x1f53d00] kb/s:8732.19

real    9m47.478s
user    26m48.400s
sys     0m20.144s