Well as i don't want to steal some one else their topic i start one here.
Finally after 2 months i got everthing working now, leds respond frame grabber grabs the frame, but i got only one problem and thats flickering leds..
How i connected everything by power
20A 5v psu i connected a + - line to the leds and one to the pi both have a transistor on it 1000uF both on the same + and - of the PSU.
So i got a central point where my pi and leds ( - ) come together from there it goes to the PSU
Then i got another ground from the psu to the pi and a separet + .
Does this flickering happen because the pi gpio is 3,3V and the leds DATA 5v?
already ordered a level shifter so have to wait for that