Quote:
Originally Posted by Beelzebubu
Why? For example, x264 heuristically assigns quant deltas before the frame encode. To fit this in a segment-ID design, all you need is a clustering algorithm (see e.g. webp).
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Oh, it would be possible, just a lot more finicky to do so optimally. x264 devs figured out how to do adaptive quant in xvid eventually, although it was slower and less optimal than in x264.