@dos Yep, right. So your version was 0.2MPix, this is 0.4MPix solution, and very, very close to 0.8MPix solution -- but right, shader improvement would be needed, as this duplicates Y value. But at this point, I'm convinced 1048x778 stream is possible, because slightly more complex shader should not throw performance off too much.

There's clearly more work to do. Re-starting app when starting recording is not great, nor is viewfinder limited to 1fps. Even more scary is what happens when I adjust viewfinder to 10fps...