[FFmpeg-user] mac OS X avfoundation not listing audio devices

[Jim Worrall]

> On 2016 May 15, at 4:55 AM, Moritz Barsnick <barsnick at gmx.net> wrote:
> 
> On Sun, May 15, 2016 at 20:50:14 +1000, Paul Evans wrote:
>> I am trying to list all devices on my MacBook Pro running El Capitan, but am surprised that the only device listed is the FaceTime HD Camera.
>> FFMPEG was installed using homebrew and the version I am running is 2.3.3
> 
> That version of ffmpeg is extremely old, and avfoundation support has
> been significantly improved since. Please do update to git HEAD, or at
> least to the very latest 3.0.x release.

I get more devices on my very old MacBook Pro with newer ffmpeg:

ffmpeg -f avfoundation -list_devices true -i “"

ffmpeg version N-79342-g03d8fee Copyright (c) 2000-2016 the FFmpeg developers
  built with Apple LLVM version 7.3.0 (clang-703.0.29)
  configuration: --prefix=/Volumes/Ramdisk/sw --enable-nonfree --enable-gpl --enable-version3 --enable-libmp3lame --enable-libx264 --enable-libx265 --enable-libgsm --enable-libvpx --enable-libfdk-aac --enable-libvorbis --enable-libass --enable-libfreetype --enable-libfontconfig --enable-libfribidi --disable-outdevs --disable-ffserver --disable-network
  libavutil      55. 20.100 / 55. 20.100
  libavcodec     57. 34.100 / 57. 34.100
  libavformat    57. 33.100 / 57. 33.100
  libavdevice    57.  0.101 / 57.  0.101
  libavfilter     6. 41.100 /  6. 41.100
  libswscale      4.  1.100 /  4.  1.100
  libswresample   2.  0.101 /  2.  0.101
  libpostproc    54.  0.100 / 54.  0.100
[AVFoundation input device @ 0x7fce80600280] AVFoundation video devices:
[AVFoundation input device @ 0x7fce80600280] [0] Built-in iSight
[AVFoundation input device @ 0x7fce80600280] [1] Capture screen 0
[AVFoundation input device @ 0x7fce80600280] AVFoundation audio devices:
[AVFoundation input device @ 0x7fce80600280] [0] Built-in Microphone
[AVFoundation input device @ 0x7fce80600280] [1] Built-in Input
: Input/output error