[theora] [?] About YUV formats...

[Andrea Fontana]

Hello. I'm a theora newbie... I see it accept video frames in some 
differents YUV formats.
How theora manage them internally? I mean: if i encode the same video twice, 
first time encoding it with YUV444 packets and then with YUV420, will second 
video be smaller than first (due to subsampling...)? Or theora compress them 
in the same way?

Thanks in advance,
A. F.