libavformat-dev 4:0.7.6-0ubuntu0.11.10.2 (powerpc binary) in ubuntu oneiric

 This is the demuxer library from Libav. It supports most
 existing file formats (AVI, MPEG, OGG, Matroska, ASF...).
 .
 This package contains the header files and static libraries needed to
 compile applications or shared objects that use libavformat.