[FFmpeg-trac] #7050(undetermined:new): ffmpeg crashes when trying to use alimiter=attack=0.1 on material with samplerate 8 kHz

FFmpeg trac at avcodec.org
Wed Feb 28 21:55:49 EET 2018


#7050: ffmpeg crashes when trying to use alimiter=attack=0.1 on material with
samplerate 8 kHz
-------------------------------------+-------------------------------------
             Reporter:  Rollinnn     |                     Type:  defect
               Status:  new          |                 Priority:  normal
            Component:               |                  Version:  git-
  undetermined                       |  master
             Keywords:               |               Blocked By:
             Blocking:               |  Reproduced by developer:  0
Analyzed by developer:  0            |
-------------------------------------+-------------------------------------
 Summary of the bug:
 ffmpeg crashes when trying to use -af alimiter=attack=0.1 on material with
 samplerate 8 kHz. I understand that it is not possible to actually use
 attack time 0.1 ms on samplerate 8 KHz, but i guess that crash is not
 valid behavior. ffmpeg is static windows build from Zeranoe. Link to file
 with samplerate 8 KHz -
 [https://www.dropbox.com/s/q0zrz09biqlmql7/m1%208%20KHz.wav?dl=1].

 How to reproduce:
 ffmpeg -i C:\00\m1.wav -af alimiter=attack=0.1 C:\00\m2.wav
 ffmpeg version N-90173-gfa0c9d69d3 Copyright (c) 2000-2018 the FFmpeg
 developers
   built with gcc 7.3.0 (GCC)
   configuration: --enable-gpl --enable-version3 --enable-sdl2 --enable-
 bzlib --enable-fontconfig --enable-gnutls --enable-iconv --enable-libass
 --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-libmfx --enable-amf --enable-
 cuda --enable-cuvid --enable-d3d11va --enable-nvenc --enable-dxva2
 --enable-avisynth
   libavutil      56.  7.101 / 56.  7.101
   libavcodec     58. 13.100 / 58. 13.100
   libavformat    58. 10.100 / 58. 10.100
   libavdevice    58.  2.100 / 58.  2.100
   libavfilter     7. 12.100 /  7. 12.100
   libswscale      5.  0.101 /  5.  0.101
   libswresample   3.  0.101 /  3.  0.101
   libpostproc    55.  0.100 / 55.  0.100
 Guessed Channel Layout for Input Stream #0.0 : stereo
 Input #0, wav, from 'C:\00\m1.wav':
   Duration: 00:00:01.00, bitrate: 256 kb/s
     Stream #0:0: Audio: pcm_s16le ([1][0][0][0] / 0x0001), 8000 Hz,
 stereo, s16, 256 kb/s
 Stream mapping:
   Stream #0:0 -> #0:0 (pcm_s16le (native) -> pcm_s16le (native))
 Press [q] to stop, [?] for help

--
Ticket URL: <https://trac.ffmpeg.org/ticket/7050>
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