Allows you to run various AV Tools using a volume share and let it transcode/strip channels, etc.
To run the container, fire up docker like so:
$ sudo docker run -i -t -v /path/to/files:/files -v /path/to/local/cache:/home/docker --rm=true -u="1000" jedimonkey/avconv avconv [options]
or
$ sudo docker run -i -t -v /path/to/files:/files -v /path/to/local/cache:/home/docker --rm=true -u="1000" jedimonkey/avconv mkvmerge [options]
It's designed to run batch or interactively. The docker will remove it's active container once the running process has finished. This runs as a unprivileged user (1000), which you can map to your local user id as needed.