Binary package “libavcodec-dev” in ubuntu trusty

Development files for libavcodec

 Libav is a complete, cross-platform solution to decode, encode, record,
 convert and stream audio and video.
 This is the codec library from Libav. It supports most existing
 encoding formats (MPEG, DivX, MPEG4, AC3, DV...).
 This package contains the header files and static libraries needed to
 compile applications or shared objects that use libavcodec.