libpostproc-dev software package provides FFmpeg derived postprocessing library - development headers, 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 libpostproc-dev
libpostproc-dev is installed in your system.
Make ensure the libpostproc-dev package were installed using the commands given below,
$ sudo dpkg-query -l | grep libpostproc-dev *
You will get with libpostproc-dev package name, version, architecture and description in a table
| Distro | Ubuntu 14 04 lts trusty tahr |
| Section | Miscellaneous |
| Package | libpostproc-dev |
| Version | 6:0.git20120821-4 |
| Description | FFmpeg derived postprocessing library - development headers |
| Sub Section | misc |