ffmpeg version N-80273-g7c9bc96-g5fd7394+2 Copyright (c) 2000-2016 the FFmpeg developers
  built with gcc 5.4.0 (Rev1, Built by MSYS2 project)
  configuration:  --enable-avisynth --enable-libmp3lame --enable-libopus --enable-libvorbis --enable-libvpx --enable-libx264 --enable-libx265 --disable-w32threads --enable-fontconfig --enable-frei0r --enable-libass --enable-libbluray --enable-libbs2b --enable-libfreetype --enable-libfribidi --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-amrwbenc --enable-libwavpack --enable-libwebp --enable-libxavs --enable-libxvid --enable-libzimg --enable-openssl --enable-libsnappy --enable-gpl --enable-nvenc --enable-opengl --enable-libcdio --enable-libfaac --enable-libfdk-aac --enable-libkvazaar --enable-librubberband --enable-libssh --enable-libtesseract --enable-libzvbi --enable-chromaprint --enable-libebur128 --enable-libopenh264 --enable-version3 --enable-nonfree --enable-filter=frei0r --disable-debug
  libavutil      55. 24.100 / 55. 24.100
  libavcodec     57. 46.100 / 57. 46.100
  libavformat    57. 37.101 / 57. 37.101
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 46.101 /  6. 46.101
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
[dshow @ 000001929a5d6640] DirectShow video devices (some may be both video and audio devices)
[dshow @ 000001929a5d6640] Could not enumerate video devices (or none found).
[dshow @ 000001929a5d6640] DirectShow audio devices
[dshow @ 000001929a5d6640] Could not enumerate audio only devices (or none found).
dummy: Immediate exit requested