$ sudo apt-get update
$ sudo apt-get install libxvmc1 

libxvmc1 is installed in your system.

Make ensure the libxvmc1 package were installed using the commands given below,

$ sudo dpkg-query -l | grep libxvmc1 *

You will get with libxvmc1 package name, version, architecture and description in a table

libxvmc1 package basic information: