hi Adrien,
I work on debian 5 Lenny, and don't find the specifics dependancies of
gstreamer wich are needed.
Specialy the gstapp part.
i am not familiar with debian, but a quick package search in debian sid
shows that it's in libgstreamer-plugins-base0.10-dev:
http://packages.debian.org/search?suite=sid&arch=any&searchon=contents&keywords=gstappsink.h
although there's no package containing gstapp in lenny:
http://packages.debian.org/search?suite=lenny&arch=any&searchon=contents&keywords=gstappsink.h
if you are stuck you might find some help at the openframeworks forum
(http://www.openframeworks.cc/forum/), because the video module is based
on ofVideo.
gabor
