I'm at the same point that nokia3660.
I've decided to try first ws2812b. Actually, the LED (5050) is the same for both stripes, so if the communication is well done, it should work likewise.
I'll show you my implementation if I success. If not, I'll try to use that strip for other project and get an APA102. (Which I'll show you anyway)
Finally, I have a question: is the SCART (TV (DVB-C/T/S) a must to buy if we want our LEDs work for all platforms (NETFLIX, Chromecast streaming...)? It's something I don't find... Shouldn't it work with HDMI directly to Raspberry PI?
Thank you for the answer!