libavcodec-extra 6:9.11-2ubuntu2 (amd64 binary) in ubuntu trusty

 Libav is a complete, cross-platform solution to decode, encode, record,
 convert and stream audio and video.
 .
 This package depends on the latest version of the libavcodec variant
 that offers additional codec support. Application packages can depend
 on it if they require or suggest this variant in a robust manner.