Binary package “libavformat54” in ubuntu trusty

Libav file format library

 Libav is a complete, cross-platform solution to decode, encode, record,
 convert and stream audio and video.
 .
 This is the library for handling file formats from Libav.
 .
 It supports most existing file formats (AVI, MPEG, OGG, Matroska,
 ASF...).