Where did ffmpeg on Ubuntu 14.04 LTS go? Use avconv instead

ffmpeg was replaced by libav on the new Ubuntu package list. It is similar, though.
ffmpeg -> avconv
ffplay -> avplay
ffserver -> avserver

You can still convert media files using avconv in place of ffmpeg.

To install avconv, open a terminal window and type following commands:
$ sudo apt-get install libav-tools <enter>