The way you get into the various modes are:mv1080
- Canon menu at 1920x1080 -- raw buffer size is 1808x1190 - 24, 25, 29.97fps - EOSM is unique in that it won't go into this mode unless it is recording H.264 video
- Canon menu at 1280x720 -- raw buffer size is 1808x727 - 50, 59.94fps - EOSM is unique because it defaults to 29.97fps.mv1080crop
- Canon menu at 1920x1080, ML Movie crop mode -- raw buffer size is 1872x1060 - 24, 25, 29.97fpszoom
- Canon menu at 1920x1080, press magnify button to get to 5x LiveView -- raw buffer size is 2592x1108 - 24, 25, 29.97fps. Tricky on the EOSM because the magnifying glass button is in one of the LiveView layouts. You can actually record at about 2496x1078 in this mode but limited by the SD card hardware.crop_rec
- Canon menu at 1280x720, crop_rec module (from experimental builds) set to 3x3 720p -- raw buffer size is 1808x727 - 50, 59.94fps - EOSM at 29.97fps.
I believe you wanted a blank white wall no clipping, right? Here are silent DNG's from the 700D:https://www.dropbox.com/sh/fvjgwdy9yyeycic/AAAF44SlZ7S642WQGRZJX5Dya?dl=0
You might want to shoot a black frame on your EOSM and push it as far as you can in ACR. It will be noisy but you'll see a different focus pixel pattern.
I'm on a Mac and have taken a look at your program. I've been a bit too busy on several projects lately to run any tests on it.
[EDIT] I never had much luck with digital dolly on the EOSM. It seems to work best on the 5D3 though I haven't played around with it on that camera. As far as zoom mode and digital dolly, there are 21 raw buffer positions on the sensor and no indication of which one is active so it is a challenge figuring out where the focus pixels are located. What I did might be overkill but it seems to be working for the few people that figured out how to use zoom mode on the EOSM/100D/650D/700D.