libavcodec-extra-56-dbgsym 6:11.3-3 (amd64 binary) in ubuntu wily

 Libav is a complete, cross-platform solution to decode, encode, record,
 convert and stream audio and video.
 .
 This is the codec library from Libav (both encoding and decoding).
 .
 This package is a replacement for the regular libavcodec56 library package;
 it 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)
 .
 Because this package links against libraries that are licensed under
 Apache License 2.0, the resulting binaries are distributed under the
 GPL version 3 or later.