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Old April 3rd, 2005, 11:16 PM   #1
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Which type of YUV?

I understand that the Cineform .avi is YUV 4:2:2. Is it the YV12 like a DVD's mpeg2 or something else?
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Old April 4th, 2005, 12:25 AM   #2
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YUV 4:2:2 means the chroma resolution is half the horizontal res and the full vertical res (if luma is 1440x1080 chroma is 720x1080.) The FOUR-CC code is YUY2 or UYVY. The FOUR-CC code you gave YV12 is a 4:2:0 chroma sampling. 4:2:0 the chroma is halved in both directions -- so a 1440x1080 only has chroma res of 720x540. CineForm chose 4:2:2 so that it has twice the chroma res of either 4:1:1 (DV) or 4:2:0 (HDV) sources. 4:2:2 is also an old broadcast standard.
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Old April 4th, 2005, 11:30 PM   #3
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Thanks for the education. The whole YUV and its 1,000 versions are so confusing.
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