>Thanks (merci) Laurent. I have a better idea now.
>From what I understand I can (almost) easily modify YUV to RGB
>values and RGB to YUV values of a pixel by random access as long a I
>have the proper data in the proper tables.
Ugh... no, it's not so simple.
Some clarifications:
1) For the sake of precision, the colorspace is "Y'CbCr", not "YUV".
2) The chroma channels are not at the same resolution as the luma channel
(4:2:0 subsampling) and to make them the same resolution requires
upsampling.
The yuv4mpeg(5) manpage describes the YUV4MPEG2 stream format.
See http://www.mir.com/DMG/ for additional information on colorspaces and
subsampling standards, and links to even more information on the same.
-matt m.
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