ffmpeg docker installation troubleshooting info

[jamief]

Just for anyone struggling to get ffmpeg recognised when using a Docker container (Synology 920+):

- I downloaded and extracted ffmpeg static binary (Linux 64) to MinimServer/opt/bin (mapped volume in container)
- I changed mode with "chmod +x ffmpeg" in a terminal
- opt/bin/ffmpeg showed up in MinimWatch properties > System > stream.converter
- MinimWatch red icon, stream converter not found message

I could run ffmpeg from a host terminal window, but not a container terminal.

I copied ffmpeg to /bin in the container, it would then execute it a container terminal, but still not working with MinimStreamer.

I updated the path in stream.converter property to /bin/ffmpeg => now working.