Hey Arturo!
here's a link: https://www.dropbox.com/s/slwjht345403ste/B2.mov?dl=0
do you reckon it could be a codec problem ?
I started trying to port ofxAVFVideo ... has great performance but annoyingly doesnt really work with 0.9
(the linked video works correctly with alpha both with the standard ofvideo and ofxavfvideo)
Thanks!