Installed Shinobi, ffmpeg no longer working

I have been looking to move on from Zoneminder for my home security camera setup. I run the Hass.io Docker image on a machine with a ten-core Xeon CPU and a whole bunch of memory. I installed Shinobi a few days ago to test it out before deciding to test-run Shinobi on a separate box. So I uninstalled Shinobi by following the developers’ instructions.

Since then, anything that uses ffmpeg doesn’t work in Home Assistant. I had a baby monitor setup to send notifications when our baby is making noise, and the cameras that work fine in Shinobi don’t work in Home Assistant. Those same cameras work OK in VLC on my desktop and also when I enable the JPEG API in Shinobi and access them through Home Assistant that way.

So the question is how can I get ffmpeg working in Hass.io again? I have run a Hass.io update (from 0.81.6 to 0.82) and tried using apt to remove and (re) install ffmpeg on the host machine, to no avail. I also tried manually pointing to the host machine’s ffmpeg binary location in configuration.yaml, and that also didn’t work.

It seems ffmpeg is borked in 0.82.

despite setting it up as per the documentation, I get this:

2018-11-13 22:25:05 WARNING (MainThread) [haffmpeg.core] FFmpeg isn’t running!