From https://xiph.org/~xiphmont/demo/daala/demo1.shtml https://xiph.org/~xiphmont/demo/daala/demo1.shtml > Our performance target is roughly a generation beyon

From https://xiph.org/~xiphmont/demo/daala/demo1.shtml https://xiph.org/~xiphmont/demo/daala/demo1.shtml > Our performance target is roughly a generation beyond current 'next-generation' codecs like VP9 and HEVC, making Daala a next-next-generation effort. and > The next-generation VP9 and HEVC codecs are the latest incremental refinements of a basic codec design that dates back 25 years to h.261. This conservative, linear development strategy evolving a proven design has yielded reliable improvement with relatively low risk, but the law of diminishing returns is setting in. Recent performance increases are coming at exponentially increasing computational cost. > Daala tries for a larger leap forward— by first leaping sideways— to a new codec design and numerous novel coding techniques. In addition to the technical freedom of starting fresh, this new design consciously avoids most of the patent thicket surrounding mainstream block-DCT-based codecs. At its very core, for example, Daala is based on lapped transforms, not the traditional DCT.