Composite video streaming with ESP32

[Crashex]

I have a few ESP32s and some old FPV cameras (PAL), and would like to combine them to build a timelapse systems that can stream photos to a web location. I can only find information about creating a composite video output signal, but nothing about how I would be able to use these cameras. I don't want to buy an ESP32 CAM board.

[ESP_Sprite]

The ESP32 does not have composite input functionality (it actually also doesn't have composite output, but some people managed to make it work by abusing I2S). You may be able to get away by using a super-fast external ADC and I2S to stream the composite signal to the processor, but I'm not sure if the CPU would be quick enough to decode the signal into something you could display. Even if this was possible, no one wrote code for this, so if you want this route, be prepared to write everything and implement all the signal processing yourself.