On Mon, Dec 23, 2024 at 01:26:33PM +0100, Niklas Haas wrote: > From: Niklas Haas <g...@haasn.dev> > > The current logic uses 12-bit linear light math, which is woefully > insufficient > and leads to nasty postarization artifacts. This patch simply switches the > internal logic to 16-bit precision. > > This raises the memory requirement of these tables from 32 kB to 272 kB. > > All relevant FATE tests updated for improved accuracy. > > Fixes: ticket 4829 > Signed-off-by: Niklas Haas <g...@haasn.dev> > Sponsored-by: Sovereign Tech Fund > --- > libswscale/swscale.c | 16 ++++++++-------- > libswscale/swscale_internal.h | 8 ++++---- > libswscale/utils.c | 19 ++++++++++++------- > tests/ref/fate/filter-pixdesc-xyz12be | 2 +- > tests/ref/fate/filter-pixdesc-xyz12le | 2 +- > tests/ref/fate/filter-pixfmts-copy | 4 ++-- > tests/ref/fate/filter-pixfmts-crop | 4 ++-- > tests/ref/fate/filter-pixfmts-field | 4 ++-- > tests/ref/fate/filter-pixfmts-fieldorder | 4 ++-- > tests/ref/fate/filter-pixfmts-hflip | 4 ++-- > tests/ref/fate/filter-pixfmts-il | 4 ++-- > tests/ref/fate/filter-pixfmts-null | 4 ++-- > tests/ref/fate/filter-pixfmts-scale | 4 ++-- > tests/ref/fate/filter-pixfmts-transpose | 4 ++-- > tests/ref/fate/filter-pixfmts-vflip | 4 ++-- > tests/ref/pixfmt/gbrp-xyz12le | 2 +- > tests/ref/pixfmt/gbrp10-xyz12le | 2 +- > tests/ref/pixfmt/gbrp12-xyz12le | 2 +- > tests/ref/pixfmt/rgb24-xyz12le | 2 +- > tests/ref/pixfmt/rgb48-xyz12le | 2 +- > tests/ref/pixfmt/xyz12le | 2 +- > tests/ref/pixfmt/yuv444p-xyz12le | 2 +- > tests/ref/pixfmt/yuv444p10-xyz12le | 2 +- > tests/ref/pixfmt/yuv444p12-xyz12le | 2 +- > 24 files changed, 55 insertions(+), 50 deletions(-)
better quality ++ LGTM thx [...] -- Michael GnuPG fingerprint: 9FF2128B147EF6730BADF133611EC787040B0FAB "You are 36 times more likely to die in a bathtub than at the hands of a terrorist. Also, you are 2.5 times more likely to become a president and 2 times more likely to become an astronaut, than to die in a terrorist attack." -- Thoughty2
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