bin>ffmpeg -list_devices true -f dshow -i dummy
ffmpeg version N-90991-g0736f32a4f 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-libaom --enable-libmfx --enable-amf --enable-ffnvcodec --enable-cuvid --enable-d3d11va --enable-nvenc --enable-nvdec --enable-dxva2 --enable-avisynth
  libavutil      56. 18.100 / 56. 18.100
  libavcodec     58. 19.101 / 58. 19.101
  libavformat    58. 13.101 / 58. 13.101
  libavdevice    58.  4.100 / 58.  4.100
  libavfilter     7. 21.100 /  7. 21.100
  libswscale      5.  2.100 /  5.  2.100
  libswresample   3.  2.100 /  3.  2.100
  libpostproc    55.  2.100 / 55.  2.100
[dshow @ 0000029633ea9e40] DirectShow video devices (some may be both video and audio devices)
[dshow @ 0000029633ea9e40]  "Blackmagic WDM Capture"
[dshow @ 0000029633ea9e40]     Alternative name "@device_pnp_\\?\decklink#avstream#5&28dc2e48&0&0#{65e8773d-8f56-11d0-a3b9-00a0c9223196}\decklinkcapture1"
[dshow @ 0000029633ea9e40]  "Decklink Video Capture"
[dshow @ 0000029633ea9e40]     Alternative name "@device_sw_{860BB310-5D01-11D0-BD3B-00A0C911CE86}\{44A8B5C7-13B6-4211-BD40-35B629D9E6DF}"
[dshow @ 0000029633ea9e40] DirectShow audio devices
[dshow @ 0000029633ea9e40]  "Microphone (High Definition Audio Device)"
[dshow @ 0000029633ea9e40]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{885ECA98-3D31-4242-BC4F-524FF305FAE4}"
[dshow @ 0000029633ea9e40]  "Decklink Audio Capture"
[dshow @ 0000029633ea9e40]     Alternative name "@device_sw_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\{AAA22F7E-5AA0-49D9-8C8D-B52B1AA92EB7}"
[dshow @ 0000029633ea9e40]  "Line In (High Definition Audio Device)"
[dshow @ 0000029633ea9e40]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{6937E0EA-6069-458D-98B1-B1FBD2B0A37F}"
[dshow @ 0000029633ea9e40]  "Microphone (High Definition Audio Device)"
[dshow @ 0000029633ea9e40]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{CBB55B87-78C0-4614-8E9E-9D91E40A9B1D}"
[dshow @ 0000029633ea9e40]  "Line In (Blackmagic Intensity Pro 4K Audio)"
[dshow @ 0000029633ea9e40]     Alternative name "@device_cm_{33D9A762-90C8-11D0-BD43-00A0C911CE86}\wave_{F8744B47-2496-4C31-A8F1-521C0AF65413}"
dummy: Immediate exit requested