D:\Documents\ShareX\Tools> .\ffmpeg -list_devices true -f dshow -i dummy
ffmpeg version N-65142-gd76675d Copyright (c) 2000-2014 the FFmpeg developers
  built on Jul 31 2014 22:10:14 with gcc 4.8.3 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
  libavutil      52. 94.100 / 52. 94.100
  libavcodec     55. 71.100 / 55. 71.100
  libavformat    55. 50.100 / 55. 50.100
  libavdevice    55. 13.102 / 55. 13.102
  libavfilter     4. 11.102 /  4. 11.102
  libswscale      2.  6.100 /  2.  6.100
  libswresample   0. 19.100 /  0. 19.100
  libpostproc    52.  3.100 / 52.  3.100
[dshow @ 0000000004b4ea60] DirectShow video devices
[dshow @ 0000000004b4ea60]  "Logitech HD Webcam C310"
[dshow @ 0000000004b4ea60]  "screen-capture-recorder"
[dshow @ 0000000004b4ea60]  "Dxtory Video 1"
[dshow @ 0000000004b4ea60]  "Dxtory Video 2"
[dshow @ 0000000004b4ea60]  "Dxtory Video 3"
[dshow @ 0000000004b4ea60]  "Dxtory Video 4"
[dshow @ 0000000004b4ea60] DirectShow audio devices
[dshow @ 0000000004b4ea60]  "Microphone (HD Webcam C310)"
[dshow @ 0000000004b4ea60]  "virtual-audio-capturer"
[dshow @ 0000000004b4ea60]  "Line 1 (Breakaway Pipeline)"
dummy: Immediate exit requested

D:\Documents\ShareX\Tools> .\ffmpeg -list_options true -f dshow -i audio="Line 1 (Breakaway Pipeline)"
ffmpeg version N-65142-gd76675d Copyright (c) 2000-2014 the FFmpeg developers
  built on Jul 31 2014 22:10:14 with gcc 4.8.3 (GCC)
  configuration: --enable-gpl --enable-version3 --disable-w32threads --enable-avisynth --enable-bzlib --enable-fontconfig --enable-frei0r --enable-gnutls --enable-iconv --enable-libass --enable-libbluray --enable-libbs2b --enable-libcaca --enable-libfreetype --enable-libgme --enable-libgsm --enable-libilbc --enable-libmodplug --enable-libmp3lame --enable-libopencore-amrnb --enable-libopencore-amrwb --enable-libopenjpeg --enable-libopus --enable-librtmp --enable-libschroedinger --enable-libsoxr --enable-libspeex --enable-libtheora --enable-libtwolame --enable-libvidstab --enable-libvo-aacenc --enable-libvo-amrwbenc --enable-libvorbis --enable-libvpx --enable-libwavpack --enable-libwebp --enable-libx264 --enable-libx265 --enable-libxavs --enable-libxvid --enable-decklink --enable-zlib
  libavutil      52. 94.100 / 52. 94.100
  libavcodec     55. 71.100 / 55. 71.100
  libavformat    55. 50.100 / 55. 50.100
  libavdevice    55. 13.102 / 55. 13.102
  libavfilter     4. 11.102 /  4. 11.102
  libswscale      2.  6.100 /  2.  6.100
  libswresample   0. 19.100 /  0. 19.100
  libpostproc    52.  3.100 / 52.  3.100
[dshow @ 00000000044ac9a0] DirectShow audio device options
[dshow @ 00000000044ac9a0]  Pin "Capture"
[dshow @ 00000000044ac9a0]   min ch=1 bits=8 rate= 11025 max ch=2 bits=16 rate= 44100
    Last message repeated 22 times
audio=Line 1 (Breakaway Pipeline): Immediate exit requested