[FFmpeg-user] mpeg4 with 4:2:2 colorspace

[farzaneh tabataba]

Hi

I am trying to encode an AVI file, via mpeg4 codec( with VBR qscale 1)

My source file Chroma subsampling is: 4:2:2, while chroma subsampling for
the coded file is 4:2:0.
How can I preserve the chroma subsampling ratio?   I want it remains 4:2:2
after compression.

Thanks