$ sudo apt-get update
$ sudo apt-get install libmpeg3-1 

libmpeg3-1 is installed in your system.

Make ensure the libmpeg3-1 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libmpeg3-1 *

You will get with libmpeg3-1 package name, version, architecture and description in a table

libmpeg3-1 package basic information: