libtracker-extract-0.12-0 0.12.7-2 (i386 binary) in ubuntu precise

 This package contains the library that is used by applications that provide
 metadata extractors for 3rd party file types.
 .
 Tracker is an advanced framework for first class objects with associated
 metadata and tags. It provides a one stop solution for all metadata, tags,
 shared object databases, search tools and indexing.