hi, could someone point me to some basics in understanding of video signal. i need to analyze a video input signal very roughly, like brightness/luminosity of black/white in low resolution an framerate (some frames per second). actually i want to detect changes or movement through the picture/screen. i have installed gem and pdp, but don't know all the objects yet. later it is also important, that i will be able to run the patch in -nogui mode, because the cpu is quite old and slow and i need all available resources. i think Gem is not working then??? hardware is working fine (though slow, 200MHz, for video input i use a win-tv card), only my "know how" is poor : ( btw some objects of pdp cannot be created (pdp_blur, pdp_motion_phase). should i change to a newer version? now i am using 0.10.1. and last question: pdp_xv shows an error: no xv port available. is this a software problem, or does my tv-card not support this?
thnx in advance, marius.