Yeah, I had tried multiple drivers and chips, mcp2515, esp32, NEC 1050, mcp2561, and finally I ordered the same ti chip as the camera and put it on a mcp2515 board (I ordered mcp2515 boards after a breadboarded one didn't work, it wasn't until I removed those caps it magically had a proper signal, I spent more time stuck on can bus than the fpga.
It's nice to know all pins are 12v tolerant, makes me a bit more reassured I'm not going to easily damage it, I'm still not 100% on how video decoding is going to work, but I figured the right deserializer chip was a good place to start, I don't have your exact fpga to try your code on and it should just spit the parallel data out once connected, I just need something to read it in.