Clément Bœsch 06362ab750
avfilter/dctdnoiz: rewrite [f/i]dct ...
This removes the avcodec dependency and make the code almost twice as
fast. More to come.
The DCT factorization is based on "Fast and numerically stable
algorithms for discrete cosine transforms" from Gerlind Plonkaa &
Manfred Tasche (DOI: 10.1016/j.laa.2004.07.015).
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Clément Bœsch
06362ab750