None of these symbols should be accessed directly, so declare them as hidden. Signed-off-by: Mans Rullgard <mans@mansr.com> (cherry picked from commit d36beb3f69)
d36beb3f69
Originally committed as revision 16556 to svn://svn.ffmpeg.org/ffmpeg/trunk
Originally committed as revision 11659 to svn://svn.ffmpeg.org/ffmpeg/trunk