[FFmpeg-user] reference picture missing during reorder

[Cecil Westerhof]

While running ffmpeg I got the following:
ffmpeg version 4.3.4-0+deb11u1 Copyright (c) 2000-2021 the FFmpeg developers
  built with gcc 10 (Debian 10.2.1-6)
  configuration: --prefix=/usr --extra-version=0+deb11u1 --toolchain=hardened --libdir=/usr/lib/x86_64-li
nux-gnu --incdir=/usr/include/x86_64-linux-gnu --arch=amd64 --enable-gpl --disable-stripping --enable-avr
esample --disable-filter=resample --enable-gnutls --enable-ladspa --enable-libaom --enable-libass --enabl
e-libbluray --enable-libbs2b --enable-libcaca --enable-libcdio --enable-libcodec2 --enable-libdav1d --ena
ble-libflite --enable-libfontconfig --enable-libfreetype --enable-libfribidi --enable-libgme --enable-lib
gsm --enable-libjack --enable-libmp3lame --enable-libmysofa --enable-libopenjpeg --enable-libopenmpt --en
able-libopus --enable-libpulse --enable-librabbitmq --enable-librsvg --enable-librubberband --enable-libs
hine --enable-libsnappy --enable-libsoxr --enable-libspeex --enable-libsrt --enable-libssh --enable-libth
eora --enable-libtwolame --enable-libvidstab --enable-libvorbis --enable-libvpx --enable-libwavpack --ena
ble-libwebp --enable-libx265 --enable-libxml2 --enable-libxvid --enable-libzmq --enable-libzvbi --enable-
lv2 --enable-omx --enable-openal --enable-opencl --enable-opengl --enable-sdl2 --enable-pocketsphinx --en
able-libmfx --enable-libdc1394 --enable-libdrm --enable-libiec61883 --enable-chromaprint --enable-frei0r
--enable-libx264 --enable-shared
  libavutil      56. 51.100 / 56. 51.100
  libavcodec     58. 91.100 / 58. 91.100
  libavformat    58. 45.100 / 58. 45.100
  libavdevice    58. 10.100 / 58. 10.100
  libavfilter     7. 85.100 /  7. 85.100
  libavresample   4.  0.  0 /  4.  0.  0
  libswscale      5.  7.100 /  5.  7.100
  libswresample   3.  7.100 /  3.  7.100
  libpostproc    55.  7.100 / 55.  7.100
Input #0, mpegts, from 'Original/00233-00239.MTS':
  Duration: 01:25:33.44, start: 1.440000, bitrate: 21922 kb/s
  Program 1
    Metadata:
      service_name    : Service01
      service_provider: FFmpeg
    Stream #0:0[0x100]: Video: h264 (High) ([27][0][0][0] / 0x001B), yuv420p(top first), 1920x1080 [SAR 1
:1 DAR 16:9], 25 fps, 50 tbr, 90k tbn, 50 tbc
    Stream #0:1[0x101]: Audio: ac3 ([129][0][0][0] / 0x0081), 48000 Hz, stereo, fltp, 256 kb/s
Stream mapping:
  Stream #0:0 -> #0:0 (h264 (native) -> h264 (libx264))
  Stream #0:1 -> #0:1 (ac3 (native) -> mp3 (libmp3lame))
Press [q] to stop, [?] for help
[h264 @ 0x5579d050d600] reference picture missing during reorder
[h264 @ 0x5579d050d600] Missing reference picture, default is 2147483647
[h264 @ 0x5579d0875500] Found reference and non-reference fields in the same frame, which is not implemen
ted. Update your FFmpeg version to the newest one from Git. If the problem still occurs, it means that yo
ur file has a feature which has not been implemented.
[h264 @ 0x5579d0875500] If you want to help, upload a sample of this file to https://streams.videolan.org
/upload/ and contact the ffmpeg-devel mailing list. (ffmpeg-devel at ffmpeg.org)
[h264 @ 0x5579d0875500] decode_slice_header error
[h264 @ 0x5579d0347240] reference picture missing during reorder
[h264 @ 0x5579d0347240] Missing reference picture, default is 2147483647
[h264 @ 0x5579d034c8c0] reference picture missing during reorder
[h264 @ 0x5579d034c8c0] Missing reference picture, default is 2147483647
[h264 @ 0x5579d0875500] mmco: unref short failure
[h264 @ 0x5579d050d600] mmco: unref short failure
[libx264 @ 0x5579d0596bc0] using SAR=1/1


The generate video looks OK.
Is this something to worry about, or not?

-- 
Cecil Westerhof
Senior Software Engineer
LinkedIn: http://www.linkedin.com/in/cecilwesterhof