gstreamer1.0-libav 1.15.0.1+git20180723+db823502-2 (amd64 binary) in ubuntu disco

 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