Im using docker 17.03.1-ce on Mac OS Sierra and have used brew to install sox. It is possible to use pulseaudio within the VM to play back a WAV file to the physical sound card. Im leaving it here though as this idea was why i ended up here But if you dont care about getting it out the VM, then the following is overly complicated.

I originally got to this page cos I was trying to get the playback of audio from within the VM to the Mac OS. Original Answer: if you want the audio to get to the Mac OS sound card

I dont really know what your X setup looks like but if you can get the audio going to pulseaudio, then ffmpeg will capture the audio without needing a real sound card The audio of the WAV file is captured by ffmpeg and appears in the out.mp3 Then in a separate terminal paplay /usr/share/sounds/alsa/Front_Center.wav # Start the ffmpeg capture to an audio file # set the monitor of v1 sink to be the default source Pacmd load-module module-virtual-sink sink_name=v1 # Load the virtual sink and set it as default It would seem unlikely to me that alsa would work for docker (though I could be wrong) Im recommanding to use pulseaudio since its userspace code and no kernel modules are needed. The command below will run the AV1 container in interactive mode and map your current working directory to /usr/workspace.EDIT: after reading first comment to BMitch about not needing to play out to local computer If you haven’t used docker containers before, I suggest reading the below links first: The docker image is available Hub - singhkays/ffmpeg-av1-libaom Usage # FFmpeg build also includes x264, x265, VP9, VMAF, LAME, AAC, OPUS.Latest commit in the master branch from at the time of build.Latest release of FFmpeg (v4.2.1 as of writing this blog).

Therefore, I took it upon myself to publish a weekly build of FFmpeg with the latest available libaom source. Often while trying to get a hold of the latest changes in libaom, you have to build the source yourself which takes time. As of writing of this blog, I haven’t come across any source on the web that publishes a binary of libaom AV1 encoder. While trying to try out the latest features for the libaom AV1 encoder, I’ve been trying to figure out how to get a hold of the latest binary.

Docker ffmpeg