[FFmpeg-user] What is Segmentation fault: 11 ?

[Paul B Mahol]

On 8/22/16, Nomis101 🐝 <Nomis101 at web.de> wrote:
> I always get "Segmentation fault: 11" if I do the following. What does
> "Segmentation fault: 11" mean?
>
> STR:
> 1. Get any movie (some small file from youtube will also do), get
> Handbrake (I'm using version 0.10.5 on Mac OS X).
> 2. Convert this movie with "Format: MP4 File" and "Video Codec: MPEG-4".
> 3. With the converted file do "$ ffmpeg -i foo.mp4"
>
> ffmpeg -i /Volumes/Macintosh/Filme/Stromgitarre.mp4
> ffmpeg version 3.1.2 Copyright (c) 2000-2016 the FFmpeg developers
>   built with Apple LLVM version 8.0.0 (clang-800.0.33.1)
>   configuration: --enable-avisynth --enable-fontconfig --enable-gpl
> --enable-libass --enable-libbluray --enable-libfreetype
> --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb
> --enable-libopencore-amrwb --enable-libsmbclient --enable-libopus
> --enable-libschroedinger --enable-libsoxr --enable-libspeex
> --enable-libtheora --enable-libvorbis --enable-libvpx
> --enable-libwavpack --disable-ffplay --enable-libx264 --enable-libx265
> --enable-libxvid --enable-version3 --disable-indev=qtkit
> --disable-indev=x11grab_xcb --enable-swscale --enable-avfilter
> --enable-avresample --enable-lzma --enable-gnutls --enable-libfribidi
> --enable-vda --enable-videotoolbox --enable-yasm --enable-postproc
> --enable-nonfree --enable-libfdk-aac --enable-libfaac --enable-librtmp
> --enable-opencl --enable-vaapi --enable-openal --enable-libcdio
> --enable-libssh --enable-openssl --enable-lto --enable-pic
> --extra-cflags='-fno-builtin-memset -fstack-protector-strong -fwrapv
> -march=native -mtune=native -fvectorize -fslp-vectorize
> -fno-strict-aliasing -D_FORTIFY_SOURCE=2 -mfpmath=sse'
> --extra-cxxflags='-fno-builtin-memset -fstack-protector-strong -fwrapv
> -march=native -mtune=native -fvectorize -fslp-vectorize
> -fno-strict-aliasing -D_FORTIFY_SOURCE=2 -mfpmath=sse'
> --extra-ldflags=-fstack-protector-strong
>   libavutil      55. 28.100 / 55. 28.100
>   libavcodec     57. 48.101 / 57. 48.101
>   libavformat    57. 41.100 / 57. 41.100
>   libavdevice    57.  0.101 / 57.  0.101
>   libavfilter     6. 47.100 /  6. 47.100
>   libavresample   3.  0.  0 /  3.  0.  0
>   libswscale      4.  1.100 /  4.  1.100
>   libswresample   2.  1.100 /  2.  1.100
>   libpostproc    54.  0.100 / 54.  0.100
> Segmentation fault: 11

I can't reproduce it on ffmpeg master, could you please upload small
sample file, the one causing crash, somewhere?