A frames are usually due to either alignement or (especially big ones) a too wide a stance. I think his stance is a little too wide, although st these extremes, is hard to judge it, for me. The skis are clearly not at the same angle, which they should and he's not displaced that much inside - he mived the inside ski "up" too early.
Looks like he's on an off-camber? In that case, it may be a one off and you can ignore the following...
As funny as it may sound, I would have him back-off these extreme angles for a while (he's booting out here) and just work on moving inside the turn properly, make sure his butt is well off that inside ski and that he is more patient with moving the inside ski up (or widen the stance). Then keeping his shins parallel / tipping both skis same amount would follow and then he can get back to these extremes.
on second thought, additionally, the extreme angle of the outside ski may be due to his upper body - he's bending forward at the hips too much - his upper body should be more upright. I would also like to see more counter / ca at this part of the turn.
All these conspire, but I would address the stance / inside ski first.
Personally, I'd be very careful about offering diagnosis from one frame... literally one fraction of a second of one run.... It's so hard to do, I'm going to re-post a picture below to prove my point. If you didn't know who the skier was, I'm sure there'd be plenty of diagnostic critique. Trouble is, this is but one fraction of a second of the second run of an alpine world championship gold metal effort.