gstreamer1.0-libav-dbg 1.4.3-1 (amd64 binary) in ubuntu utopic

 This GStreamer plugin supports a large number of audio and video compression
 formats through the use of the libav library. The plugin contains GStreamer
 elements for encoding 40+ formats (MPEG, DivX, MPEG4, AC3, DV, ...), decoding
 elements for decoding 90+ formats (AVI, MPEG, OGG, Matroska, ASF, ...),
 demuxing 30+ formats and colorspace conversion.
 .
 http://www.libav.org/
 http://gstreamer.freedesktop.org/
 http://gstreamer.freedesktop.org/modules/gst-libav.html
 .
 This package contains unstripped shared libraries. It is provided primarily
 to provide a backtrace with names in a debugger, this makes it somewhat
 easier to interpret core dumps. The libraries are installed in
 /usr/lib/debug and are automatically used by gdb.