libavdevice-dev software package provides Development files for libavdevice, you can install in your Ubuntu 14.04 LTS (Trusty Tahr) by running the commands given below on the terminal,
$ sudo apt-get update $ sudo apt-get install libavdevice-dev
libavdevice-dev is installed in your system.
Make ensure the libavdevice-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libavdevice-dev *
You will get with libavdevice-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Library development |
| Package | libavdevice-dev |
| Version | 6:9.18-0ubuntu0.14.04.1 [amd64 |
| Description | Development files for libavdevice |
| Sub Section | libdevel |