[FFmpeg-trac] #8646(undetermined:new): sample/frame number mismatch in adjacent frames

FFmpeg trac at avcodec.org
Fri May 1 07:04:02 EEST 2020


#8646: sample/frame number mismatch in adjacent frames
--------------------------------------+----------------------------------
             Reporter:  jimmalone     |                     Type:  defect
               Status:  new           |                 Priority:  normal
            Component:  undetermined  |                  Version:  4.2
             Keywords:                |               Blocked By:
             Blocking:                |  Reproduced by developer:  0
Analyzed by developer:  0             |
--------------------------------------+----------------------------------
 Summary of the bug:
 sample/frame number mismatch in adjacent frames
 This apparently recurring error is still appearing with latest ffmepg 4.2.
 There's no discernable problem in the sound itself, but this error appears
 randomly when decoding flac files.

 How to reproduce:
 {{{
 ffmpeg -i input.flac output.wav

 ffmpeg version 4.2 Copyright (c) 2000-2019 the FFmpeg developers
   built with gcc 9.1.1 (GCC) 20190807
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 fontconfig --enable-gnutls --enable-iconv --enable-libass --enable-
 libdav1d --enable-libbluray --enable-libfreetype --enable-libmp3lame
 --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg
 --enable-libopus --enable-libshine --enable-libsnappy --enable-libsoxr
 --enable-libtheora --enable-libtwolame --enable-libvpx --enable-libwavpack
 --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxml2
 --enable-libzimg --enable-lzma --enable-zlib --enable-gmp --enable-
 libvidstab --enable-libvorbis --enable-libvo-amrwbenc --enable-libmysofa
 --enable-libspeex --enable-libxvid --enable-libaom --enable-libmfx
 --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-
 nvenc --enable-nvdec --enable-dxva2 --enable-avisynth --enable-libopenmpt
   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
   libswscale      5.  5.100 /  5.  5.100
   libswresample   3.  5.100 /  3.  5.100
   libpostproc    55.  5.100 / 55.  5.100
 Input #0, flac, from 'input.flac':
   Metadata:
     encoder         : Lavf58.29.100
   Duration: 00:05:38.33, start: 0.000000, bitrate: 300 kb/s
     Stream #0:0: Audio: flac, 44100 Hz, mono, s16
 Stream mapping:
   Stream #0:0 -> #0:0 (flac (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help
 Output #0, wav, to 'output.wav':
   Metadata:
     ISFT            : Lavf58.29.100
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 44100 Hz, mono,
 s16, 705 kb/s
     Metadata:
       encoder         : Lavc58.54.100 pcm_s16le
 [NULL @ 0000017013fdb640] sample/frame number mismatch in adjacent frames
 size=   29142kB time=00:05:38.33 bitrate= 705.6kbits/s speed=1.97e+03x
 video:0kB audio:29142kB subtitle:0kB other streams:0kB global headers:0kB
 muxing overhead: 0.000261%
 }}}

--
Ticket URL: <https://trac.ffmpeg.org/ticket/8646>
FFmpeg <https://ffmpeg.org>
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