libavfilter-dev 4:0.8.17-0ubuntu0.12.04.2 (amd64 binary) in ubuntu precise

 Libav is a complete, cross-platform solution to decode, encode, record,
 convert and stream audio and video.
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 This is the video filtering library from Libav.
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 This package contains the header files and static libraries needed to
 compile applications or shared objects that use libavfilter.