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Originally Posted by bstrobl
Nothing wrong with DCT on blocks, worked well for a long time and still does .
It's a bit like squeezing out everything from current microprocessors and other modern technology, eventually you simply reach what is actually possible without going off into ridiculous complexity/cost.
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Yeah, it feels like most of the complexity of present codecs is spent on catering to blocks and deblocking.
Quote:
Originally Posted by bstrobl
Daala is a good codec with a different design, but doesn't have a huge benefit over HEVC/AV1. Same with wavelets.
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I think alternative approaches are sorely under-researched. Not much effort was put into wavelets, even less into Daala's overlapped transformation before it was dopped.