The fields that Canto is looking for in your 360° video file's metadata includes spherical & stitched.
Canto is checking if the following metadata of your 360° images contains true or panorama 360:
- projection type
- sticking software
- use panorama viewer
- cropped area image height pixels
- cropped area image width pixels
- cropped area left pixels
- cropped area top pixels
- full pano height pixels
- full pano width pixels
- slices group name
Note: The majority of 360° cameras have the capability to embed this infomation as well as most modern phones with the panorama mode.