This also lists the objects from those two libraries as internal (by adding the ff_ prefix) so that they can then be hidden via linker scripts. (cherry picked from commit c6610a216e)
c6610a216e
Originally committed as revision 24997 to svn://svn.ffmpeg.org/ffmpeg/trunk
Originally committed as revision 24983 to svn://svn.ffmpeg.org/ffmpeg/trunk