Hi, swfdec is unmaintained upstream[1] where the last release dates back to 2008. I doubt that it is of any (safe) use today. Linux distros have already removed it.
Any objection to delete it? [1] http://swfdec.freedesktop.org/wiki/ -- jca | PGP : 0x1524E7EE / 5135 92C1 AD36 5293 2BDF DDCC 0DFA 74AE 1524 E7EE
