Gert van Loo wrote:
I don't understand the "camera and a video simultaneously" bit. Or did you think the camera was only doing still pictures?
It may not be obvious from the camera demos you have seen, as they are photos, but the camera demo shows life video straight from the camera to the HDMI output in 1080p30! You can make 1080p high definition recordings of driving backwards into objects!
To clarify (not one of my strongest suits TBH), what I meant was playing a video file while also displaying the camera output. My plan is to emulate the built-in GPS screen from the top-end Land Rover Discovery (described by Top Gear as "witchcraft"). I have built a dual mode screen in a previous (work) project, and so long as you can split the output properly, it is actually pretty simple to do (depending on the value of "simple"
The idea I'm considering is effectively a "vertical interlace", with field 1 having one image (the camera output, possibly with a data overlay), and frame 2 another (video player output). The rather garbled output is then split with a lenticular beamsplitter (the sort of thing used to make those "animated" cards), with field 1 going to the driver's side, and field 2 to the passenger's. Lining up the splitter is likely to be the hardest part, as it needs to be as close to the image plane as possible (ideally as the enclosing surface of the LCD!)
The interlaced stitching should be possible with VLC or similar, but I'm wary about the system overhead of doing this.
Mad, yes, but certainly feasible for less than the cost of a Discovery 3!