libavcodec-extra-53 6:0.8.6ubuntu2 (amd64 binary) in ubuntu saucy

 This package contains the ffplay multimedia player, the ffserver streaming
 server and the Libav audio and video encoder. They support most existing
 file formats (AVI, MPEG, OGG, Matroska, ASF...) and encoding formats (MPEG,
 DivX, MPEG4, AC3, DV...).
 .
 This is the codec library from Libav (both encoding and decoding).
 .
 This package is an enhancement to the regular libavcodec library package.
 This package contains the following additional codecs.
 .
  * OpenCORE Adaptive Multi-Rate (AMR) Narrow-Band (Encoder/Decoder)
  * OpenCORE Adaptive Multi-Rate (AMR) Wide-Band (Decoder)
  * Android VisualOn AAC (Encoder)
  * Android VisualOn Adaptive Multi-Rate (AMR) Wide-Band (Encoder)
  * OpenCV filtering
  * Dirac decoding support via libdirac
  * MP3 encoding with liblame
  * H.264 encoding via libx264
  * MPEG4 Part 2 encoding via libxvidcore
 .
 Because this package links against libraries that are licensed
 under Apache License 2.0, the resulting binaries are distributed under the
 GPL version 3.