The goal for this project to develop a video filter for VLC to allow third party
applications to overlay static and dynamic alpha-blended images ontop of a VLC
video. The idea here is to provide VLC with a video filter that is comparable to
what bmovl and bmovl2 provide for MPLayer. What that is, is a video filter that
enables third party applications to get access to a piece of shared memory or
similar, in which the third party application can draw something. The third
party application can then notify VLC that the shared memory has been updated,
and VLC will then composite the image into subsequent frames.