> I am not sure how the apple encoder works with respect to its "native" input pixel format. ProRes is a YCbCr format rather than RGB so the most 'native' and high-quality pixel formats for interchange are: * ProRes 4444: 'y416' '4:4:4:4 AY'CbCr 16-bit little endian full range alpha, video range Y'CbCr' * ProRes 422: 'v216' '4:2:2 Y'CbCr 16-bit little endian video range (http://developer.apple.com/library/mac/technotes/tn2162/)' Hopefully that is helpful!
ProRes is a YCbCr format rather than RGB so the most 'native' and high-quality pixel formats for interchange are:
Hopefully that is helpful!