Camera orientation on IOS

[ricovitch]

Hi,

I'm having difficulties understanding how to show the camera pictures depending on the orientation of the device. The rotations are even not the same for the rear and the front cameras. I'm not very familiar with IOS development, so maybe this is something known.
What method could be used to ensure we always do the right transformation on the grabbed bitmapdata to rotate it in front of user ?
I thought of applying rotation to the bitmapdata depending on camera/orientation, is that the only method ?