Focal length estimatation works with landscape video but not portrait

[wyhinton]

I'm just leaving this here for anyone who might be running into this issue, or who might possibly have a solution.

I'm shooting HD video on an Iphone 12 (non-wide lens), and I've noticed that when I supply april tools with "upright" images vs "landscape" images, the focal length estimation always fails.

I tried all kinds of things to get the focal length estimation to work on upright shots (different angles, providing more frames, different lighting, backdrops, etc) and nothing seemed to work.

But once I switch to landscape mode (1920x1080) the estimation worked.