Hi cats,

please consider this 2 video files:

this is the first (even.avi) and my NLE recognize is as interlaced:
https://www.dropbox.com/s/xie5fpo38ifr6ho/even.avi?dl=0

And this is the second (NoField.avi) and my NLE recognize it as progressive:
https://www.dropbox.com/s/gslr0bg78qyaegi/NoField.avi?dl=0

I wonder: at the level of hex, inside the .avi header where are located the flags that distinguish interlaced/progressive encoding?
thanks