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

[Nomis101 🐝]

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 play the movie in Quicktime, Quicklook and VLC player.