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Old 28th February 2015, 11:04   #63  |  Link
Qaq
AV heretic
 
Join Date: Nov 2009
Posts: 422
Its chroma upsampling that is used always, cause 4:2:0 needs to be upsampled to 4:4:4.
1080@1080 doesn't need any image upscaling, but keep in mind that some *1080* videos are not exactly 1080 (1077 or so).
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