I'm testing zebra using trunk rev 4298. I have not seen any change in memory info.
Thanks
Did you do half presses where a substantial part of the viewport would show something on the zebra? If so, I'd expect bad things to happen pretty quickly if it has the same problem as sx510 did.
The reason I asked is that vid_get_viewport_height returns 480 or _GetVRAMVPixelsSize. Most cameras with a viewport height of 480 use vid_get_viewport_yscale 2 and return half height values. This is a big mess of interacting functions and defines, so I'm not 100% sure it's wrong but it seems suspect.
A comment says "taken from n" but the N port actually returns 240 or _GetVRAMVPixelsSize/2, and uses yscale 2
Do edge overlay and zebra display correctly on this camera? chdkptp live view?